CA2374314A1 - Flow control device, introducer and method of implanting - Google Patents
Flow control device, introducer and method of implanting Download PDFInfo
- Publication number
- CA2374314A1 CA2374314A1 CA002374314A CA2374314A CA2374314A1 CA 2374314 A1 CA2374314 A1 CA 2374314A1 CA 002374314 A CA002374314 A CA 002374314A CA 2374314 A CA2374314 A CA 2374314A CA 2374314 A1 CA2374314 A1 CA 2374314A1
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- Prior art keywords
- implant
- delivery device
- tube
- flow
- tube passage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/007—Methods or devices for eye surgery
- A61F9/00781—Apparatus for modifying intraocular pressure, e.g. for glaucoma treatment
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2210/00—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2210/0004—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof bioabsorbable
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2250/0058—Additional features; Implant or prostheses properties not otherwise provided for
- A61F2250/0069—Sealing means
Abstract
An implant having a tube for permitting fluid flow has an outer flange at th e outlet end and a retention projection near the inlet end. The retention projection acts as a hook engaging the inside surface of the tissue, causing the implant to stay implanted in the tissue. An implant may also be provided with a methanism for temporary occlusion, in whole or in part, of the flow passage. Thus, the tube passage may be filled, partially or wholly, with absorbable material and/or a plurality of withdrawable or advanceable flow controlling strands.
Description
FLOW CONTROL DEVICE. INTRODUCER AND METHOD OF IMPLANTING
FIELD OF THE INVENTION
The invention relates generally to medical implants used to regulate the flow of fluids within the body. The invention may be applied, for example, to ophthalmic implants for treatment of glaucoma. The invention also relates to delivery devices for implanting such implants, to methods of implanting such implants, and to methods of manufacturing such implants.
BACKGROUND OF THE INVENTION
Medical implants used to regulate the flow of fluids within the human body are known and used. One application for the use of such implants is in the treatment of glaucoma. Typical ophthalmic implants utilize drainage tubes for the release of aqueous humor from the eye to relieve the intraocular pressure (IOP).
Several disadvantages have at times been associated with prior implants. For example, implants using valve mechanisms to regulate fluid flow have risked malfunction due to defects in and/or failure of such valve mechanisms. Depending on such factors as the site of implantation, some implants have tended to clog while in use due to tissue covering the inlet end or the outlet end of the drainage tube. In addition, prior implants at times have required insertion operations that are complicated, costly, and time-consuming, for example requiring suturing of the implant once it is in place.
PATENTS AND APPhICATIONS INCORPORATED BY REFERENCE
The assignee of this patent application is also the assignee of other patents and patent applications describing and illustrating implants directed at overcoming some of the drawbacks associated with prior implants, as well as delivery devices for such implants, methods of using such implants, and methods of manufacturing such implants.
For example, implants, delivery devices, methods of use, and methods of manufacturing are described and illustrated in United States Patent No. 5,868,697 and United States Patent No. 5,702,414, both of which are owned by the assignee of this application, and both of which are hereby expressly incorporated by reference into this application.
Further examples of such implants, delivery devices, methods of use, and methods of manufacturing are also described and illustrated in United States Patent Application No. 08/975,386, filed November 20, 1997, which is also owned by the assignee of this application, and which is also hereby expressly incorporated by reference into this application.
FIELD OF THE INVENTION
The invention relates generally to medical implants used to regulate the flow of fluids within the body. The invention may be applied, for example, to ophthalmic implants for treatment of glaucoma. The invention also relates to delivery devices for implanting such implants, to methods of implanting such implants, and to methods of manufacturing such implants.
BACKGROUND OF THE INVENTION
Medical implants used to regulate the flow of fluids within the human body are known and used. One application for the use of such implants is in the treatment of glaucoma. Typical ophthalmic implants utilize drainage tubes for the release of aqueous humor from the eye to relieve the intraocular pressure (IOP).
Several disadvantages have at times been associated with prior implants. For example, implants using valve mechanisms to regulate fluid flow have risked malfunction due to defects in and/or failure of such valve mechanisms. Depending on such factors as the site of implantation, some implants have tended to clog while in use due to tissue covering the inlet end or the outlet end of the drainage tube. In addition, prior implants at times have required insertion operations that are complicated, costly, and time-consuming, for example requiring suturing of the implant once it is in place.
PATENTS AND APPhICATIONS INCORPORATED BY REFERENCE
The assignee of this patent application is also the assignee of other patents and patent applications describing and illustrating implants directed at overcoming some of the drawbacks associated with prior implants, as well as delivery devices for such implants, methods of using such implants, and methods of manufacturing such implants.
For example, implants, delivery devices, methods of use, and methods of manufacturing are described and illustrated in United States Patent No. 5,868,697 and United States Patent No. 5,702,414, both of which are owned by the assignee of this application, and both of which are hereby expressly incorporated by reference into this application.
Further examples of such implants, delivery devices, methods of use, and methods of manufacturing are also described and illustrated in United States Patent Application No. 08/975,386, filed November 20, 1997, which is also owned by the assignee of this application, and which is also hereby expressly incorporated by reference into this application.
SUI~IARY OF THE INVENTION
One object of the invention is to provide a flow regulating implant and an associated delivery device that enable the implant to be inserted in a relatively simple and efficient procedure.
In one embodiment in accordance with the invention, an implant having a tube for permitting fluid flow has an outer flange at the outlet end and one or more retention projections near the inlet end. An introducer or delivery device for implanting the implant has a central bore for accommodating the implant during the implantation procedure. The implant and delivery device are designed so that when the implant is loaded in the delivery device, the retention projection or projections of the implant protrude from the delivery device to act as a hook or hooks during the procedure.
In accordance with a method of using the implant and delivery device according to an embodiment of the invention, the implant is loaded in the delivery device with the retention projection protruding from the delivery device. The delivery device and implant then penetrate the tissue through which drainage is desired, for example, the sclera of an eye. Once the retention projection has fully penetrated through the tissue, the delivery device is withdrawn. The retention projection acts as a hook engaging the inside surface of the tissue, causing the implant to stay implanted in the tissue when the delivery device is withdrawn.
The retention projection may be made, for example, of an elastic material, so that it is able to be flexed inward against the tube of the implant during penetration through the tissue. Alternatively, the retention projection may be designed to lie initially relatively flat against the tube for easier penetration and to prevent tearing of the tissue, with a mechanism for extending the retention projection outwardly when the implant is implanted.
Another object of the invention is to provide a simple and efficient method of manufacturing a flow regulating implant. In a method for manufacturing an implant according to an embodiment of the invention, the device may be molded out of a suitable material, for example, silicone. To provide the tube passage of the implant, a thin wire may be used during the molding process.
The implant alternatively may be constructed out of stainless steel or any other suitable material.
A further object of the invention is to provide a flow regulating implant with beneficial flow characteristics. Thus, the implant may have various mechanisms for changing the configuration of the flow path.
For example, a flow controlling rod or other obstruction may be placed in the tube passage for changing the dimensions within the tube passage. This rod or obstruction may be temporary. For example, it may be made of absorbable (biodegradable) material that is eroded and absorbed.
Alternatively, it may be constructed in such a way that it may be removed from the tube passage or advanced into the tube passage at a period of time after implantation. For example, one or more strands, such as sutures, may be placed in the tube passage and withdrawn or advanced by a physician as desired at a later time or times.
An implant according to the invention has other applications aside from the field of intraocular implants.
For example, the implant may be used for drainage of a hydrocele sac, regulating flow between the hydrocele sac and the subcutaneous scrotum. Persons of ordinary skill in the art will appreciate that other applications of an implant in accordance with the invention are possible, as are various modifications of the embodiments described herein, without departing from the scope of the invention as deffined in the claims.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1A is a side view of a first embodiment of a drainage implant;
Figure 1B is an end view of the drainage implant shown in Figure 1A;
One object of the invention is to provide a flow regulating implant and an associated delivery device that enable the implant to be inserted in a relatively simple and efficient procedure.
In one embodiment in accordance with the invention, an implant having a tube for permitting fluid flow has an outer flange at the outlet end and one or more retention projections near the inlet end. An introducer or delivery device for implanting the implant has a central bore for accommodating the implant during the implantation procedure. The implant and delivery device are designed so that when the implant is loaded in the delivery device, the retention projection or projections of the implant protrude from the delivery device to act as a hook or hooks during the procedure.
In accordance with a method of using the implant and delivery device according to an embodiment of the invention, the implant is loaded in the delivery device with the retention projection protruding from the delivery device. The delivery device and implant then penetrate the tissue through which drainage is desired, for example, the sclera of an eye. Once the retention projection has fully penetrated through the tissue, the delivery device is withdrawn. The retention projection acts as a hook engaging the inside surface of the tissue, causing the implant to stay implanted in the tissue when the delivery device is withdrawn.
The retention projection may be made, for example, of an elastic material, so that it is able to be flexed inward against the tube of the implant during penetration through the tissue. Alternatively, the retention projection may be designed to lie initially relatively flat against the tube for easier penetration and to prevent tearing of the tissue, with a mechanism for extending the retention projection outwardly when the implant is implanted.
Another object of the invention is to provide a simple and efficient method of manufacturing a flow regulating implant. In a method for manufacturing an implant according to an embodiment of the invention, the device may be molded out of a suitable material, for example, silicone. To provide the tube passage of the implant, a thin wire may be used during the molding process.
The implant alternatively may be constructed out of stainless steel or any other suitable material.
A further object of the invention is to provide a flow regulating implant with beneficial flow characteristics. Thus, the implant may have various mechanisms for changing the configuration of the flow path.
For example, a flow controlling rod or other obstruction may be placed in the tube passage for changing the dimensions within the tube passage. This rod or obstruction may be temporary. For example, it may be made of absorbable (biodegradable) material that is eroded and absorbed.
Alternatively, it may be constructed in such a way that it may be removed from the tube passage or advanced into the tube passage at a period of time after implantation. For example, one or more strands, such as sutures, may be placed in the tube passage and withdrawn or advanced by a physician as desired at a later time or times.
An implant according to the invention has other applications aside from the field of intraocular implants.
For example, the implant may be used for drainage of a hydrocele sac, regulating flow between the hydrocele sac and the subcutaneous scrotum. Persons of ordinary skill in the art will appreciate that other applications of an implant in accordance with the invention are possible, as are various modifications of the embodiments described herein, without departing from the scope of the invention as deffined in the claims.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1A is a side view of a first embodiment of a drainage implant;
Figure 1B is an end view of the drainage implant shown in Figure 1A;
Figures 2A through 2C illustrate a delivery device and insertion of the drainage implant of Figure 1A
into desired tissue, with Figure 2A showing the delivery device and implant before insertion, Figure 2B showing the delivery device and implant being placed through the tissue, and Figure 2C
showing the inserted implant after the delivery device has been withdrawn;
Figure 3A is a side view of a second embodiment of a drainage implant;
Figure 3B is an end view of the drainage implant shown in Figure 3A;
Figure 3C is a cross-sectional view taken along the plane identified by the line 3C--3C in Figure 3A;
Figure 4A is a side view of a third embodiment of a drainage implant;
Figure 4B is an end view of the drainage implant shown in Figure 4A;
Figure 5 illustrates a second embodiment of a delivery device with an implant inserted in the delivery device and with the procedure at a stage corresponding to that in Figure 2B;
Figure 6 illustrates an intraocular implant according to the invention with a flow controlling plug made of absorbable material in the tube passage;
Figures 7A through 7D illustrate four variations of cross-sections for a flow controlling plug;
Figure 8 illustrates an intraocular implant according to the invention with a flow controlling plug made of absorbable material in the tube passage and with side holes partially occluded by plugs made of absorbable material;
Figure 9 illustrates an intraocular implant according to the invention with flow controlling strands in the tube passage;
Figure 10 illustrates an end view of an intraocular implant with flow controlling strands in the tube passage;
Figure 11 illustrates an intraocular implant according to the invention with a knotted flow controlling strand in the tube passage; and Figure 12 illustrates an alternative construction of a flow controlling strand.
DETAILED DESCRIPTION OF EMBODIMENTS OF THE INVENTION
Figures 1A and 1B show a side view and end view, respectively, of a first embodiment of a drainage implant 10 in accordance with the invention. The implant 10 has a tube 12 having a tube passage 14 for permitting fluid flow between an inlet end of the implant and an outlet end of the implant. One or more side holes 16 may be provided around the circumference of the tube 12 near the inlet end, allowing access for fluid flow into the tube passage 14.
The implant 10 has an outer flange 18 at the outlet end and a retention projection 20 near the inlet end.
The plane of the outer flange 18 may form an angle with the tube 12, with the angle selected to correspond to the angle between the surface of the tissue into which the implant 10 is to be inserted and the axis of insertion of the tube 12 of the implant 10.
Figures 2A through 2C illustrate an introducer or delivery device 30 for implanting the implant 10 and the method of implanting the implant 10 with that delivery device 30. The delivery device 30 has handle 32 and a tube 34 having a central bore 36 for accommodating the implant 10 during the implantation procedure. The delivery device 30 has a beveled tip 38 to allow penetration of the tissue 50 into which the implant is to be inserted. In an alternative embodiment, the implant itself penetrates the tissue by its beveled tip at the inlet end.
An opening 40 is provided in the wall of the tube S 34 of the delivery device 30. In this illustrated embodiment, the opening 40 allows both the retention projection 20 and the outer flange 18 to protrude beyond the wall of the tube 34 when the implant 10 is loaded in the delivery device 30. Because it projects beyond the wall of the tube 34, the retention projection 20 of the implant 10 can act as a hook during the implantation procedure.
As can be seen in Figure 1B, the flange 18 of the implant 10 has notches or grooves 19 on either side. These notches or grooves 19 correspond approximately to the width of the wall of the tube 34 of the delivery device 30 and accommodate the wall of the tube 34 of the delivery device 30 when the implant 10 is loaded in the delivery device 30.
The notches or grooves 19 may take any suitable shape.
Alternatively, the flange 18 may have a continuous width, with no notches or grooves, with the width of the flange 18 being slightly narrower than the diameter of the tube 12 of the implant 10. Further variations of the configuration of the flange 18 are possible.
To use the implant 10 and delivery device 30, the implant 10 is loaded in the delivery device 30 with the retention projection 20 protruding from the delivery device, as shown in Figure 2A. The delivery device 30, with the implant loaded inside, is then pressed through the tissue 50 through which drainage is desired, for example, the sclera of an eye. Figure 2B illustrates the delivery device 30 pressed through the tissue 50.
To facilitate introduction of the delivery device 30 and/or implant 10 into the tissue 50, the delivery device 30 may be oriented such that the beveled tip 38 forms a sharper angle with the tissue 50. Thus, for example, the delivery device as shown in Figure 2A may be rotated 180 degrees, i.e., with the retention projection 20 facing upward. In the case of an implant 10 being placed into the limbal sclera of an eye, this corresponds to the retention projection 20 being on the opposite side of the tube 12 from the iris. When the delivery device 30 and implant 10 are suitably through the tissue 50, they may be rotated to align the implant 10 properly in the tissue 50, with the flange 18 and retention projection 20 oriented as desired with respect to the tissue 50.
Once the retention projection 20 has fully penetrated through the tissue 50, the delivery device 30 is withdrawn. The retention projection 20 acts as a hook engaging the inside surface of the tissue 50, causing the implant 10 to stay implanted in the tissue 50 when the delivery device 30 is withdrawn. Figure 2C illustrates the implant 10 implanted in the tissue 50, with the delivery device 30 withdrawn.
Since the tube 34 of the delivery device 30 is hollow, it may be used to inject fluid or viscoelastic material. Thus, fluid may be injected into the anterior chamber of an eye upon implantation to reduce the risk of hypotony. Similarly, a viscoelastic material may be injected under the conjunctiva to help fill the bleb that exists after implantation.
The implant 10 may be molded out of a suitable material, for example, silicone. To provide the tube passage 14 of the implant 10, a thin wire may be used during the molding process. More than one wire may be used, in order to have more than one tube passage in the implant.
The implant alternatively may be constructed out of stainless steel or another suitable material. It may be coated with a suitable anti-fibrosis material, such as heparin.
The retention projection 20 may be formed of the same material as the rest of the implant 10. Alternatively, it may be made of a more flexible material to allow it to be flexed inward against the tube 12 of the implant 10 during penetration through the tissue 50. Alternatively, the retention projection 20 may be designed to lie initially relatively flat against the tube 12 for easier penetration and to prevent tearing of the tissue 50, to be extended outwardly by an expansion mechanism, for example a balloon, when the implant 10 is implanted.
Figures 3A, 3B and 3C show a side view, end view, and cross-section, respectively, of a second embodiment of a drainage implant 60 in accordance with the invention. Like the implant 10 shown in Figures 1A and 1B, the implant 60 in Figures 3A, 3B, and 3C has a tube 62 having a tube passage 64 and side holes 66 opening into the tube passage 64. The implant 60 also has an outer flange 68 at the outlet end and a retention projection 70 near the inlet end. In this case, the outer flange 68 projects beyond the outer surface of the tube 62 in all directions around the circumference of the tube 62.
Figures 4A and 4B show a side view and end view, respectively, of a third embodiment of a drainage implant 80, similar to the implant 60 shown in Figures 3A, 3B, and 3C. The tip 82 of the implant 80 is conical, in contrast to the blunt tip 72 of the implant 60.
In an alternative construction, the implant may be made with a closed end with a slit in it. Fluid can only pass through the device when the pressure rises sufficiently to open the slit. Alternatively, a different portion along the length of the tube passage may be provided with such a construction.
Figure 5 illustrates an alternative embodiment of a delivery device 90 in accordance with the invention. In this embodiment, the opening 92 allows only the retention projection 84 of the implant to protrude beyond the wall of the tube 94 of the delivery device. The outer flange 86 is accommodated within the central bore 96 of the delivery device 90. In this embodiment, the outer flange 86 must be folded or bent to be accommodated within the central bore 96 of the delivery device 90. The outer flange 86 is resilient, so that when the implant is removed from the delivery device, the outer flange 86 extends to a position relatively coplanar with the outer surface of the tissue into which the implant is inserted.
Similarly, the retention projection 84 may also be constructed to be sufficiently resilient to allow it to be compressed and completely accommodated within the central bore 96 of the delivery device 90. In addition, the delivery device 90 may be constructed with the tube 94 having a continuous outer wall, with no opening 92. To facilitate removal of the implant from the delivery device, a pusher rod or wire may be located within the bore of the delivery device. By advancing the pusher rod or wire within the delivery device against the implant, the physician can force the implant out of the delivery device, thereby allowing the retention projection to expand outwardly to its initial, relaxed position, enabling it to engage the inside surface of the tissue.
Various mechanisms may be used, if desired, for giving different flow characteristics to the implant. It may be desirable to use implants with different flow characteristics for different patients and/or to have an implant in which the flow characteristics may be changed after implantation in a particular patient.
U.S. Patent Application No. 08/975,386, filed November 20, 1997 and incorporated by reference herein, describes and illustrates various mechanisms for assisting in controlling the flow of fluid, e.g. aqueous humor, through an implant. It describes and illustrates the use of a flow controlling wire or rod in the tube passage of an implant.
The effect of the flow controlling rod or wire is to reduce the cross-sectional area through which the fluid flows for a particular length inside the tube passage of the implant. Because the flow is a function of the cross-section and length of the lumen through which it passes, the interposition of the flow controlling rod or wire serves to increase the resistance to flow. In an intraocular implant, far example, this assists in reducing the risk of hypotony.
The configuration and dimensions of the flow controlling rod or wire may be selected in accordance with the flow characteristics that are desired. It may have one or more internal bores or external grooves, any of which may be helically arranged to increase its length. It may be adjustable, by moving it axially or rotating it, to modify the flow characteristics. Persons skilled in the art will appreciate that numerous other variations are possible for the configuration of the flow controlling rod or wire.
The flow controlling rod or wire may have its axis aligned parallel with the axis of the tube passage, but other orientations are possible. For example, a flow controlling rod or wire having a diameter slightly smaller that the tube passage may be oriented transverse to the tube passage. The transversely oriented rod or wire will have a short length, corresponding approximately to the diameter of the tube or tube passage. It serves as an obstruction to the flow through the tube passage, altering the flow characteristics. Other obstruction may be placed in the tube passage for achieving similar results.
Another mechanism described and illustrated in U.S. Patent Application No. 08/975,386 for assisting in controlling the flow of fluid through an implant is the use of temporary occlusion. By occluding the flow passage of the implant with an absorbable material or with a material that may be removed after implantation, for example by a tool or laser probe, the resistance to flow can be reduced after implantation.
The use of temporary occlusion is advantageous in situations in which flow through the implant is desired to be kept low at implantation, and possibly also for a period of time after implantation. For example, when an implant is WO 00/72788 PCT/iJS00/15200 implanted in the eye, the incision in the conjunctiva and/or possible tearing of the sclera around the implant provide potential flow passages for aqueous humor. Thus, to reduce the risk of hypotony, it may be desirable to prevent or reduce flow through the implant upon implantation and for a period thereafter. Once the conjunctiva and/or sclera have healed, the flow through the implant can be increased.
The temporary occlusion need not be limited to any particular part of the flow passage. For example, the side holes and/or the tube passage of the implant may be filled, partially or wholly, with absorbable material. Thus, for example, as shown in Figure 6, a plug 106A of absorbable material may be placed in the tube passage 102 of the implant 100. With an absorbable material that biodegrades by surface erosion, as fluid contacts and flows adjacent to the plug 106A, the material of the plug 106A is absorbed into the fluid, thereby reducing the dimensions of the plug 106A. As the dimensions of the plug 106A are reduced, the resistance to flow through the implant is similarly reduced.
Alternatively, an absorbable material that biodegrades by bulk erosion may be used. Absorbable (biodegradable) materials are known and used, and such materials are described, for example, in Middleton & Tipton, "Synthetic Biodegradable Polymers as Medical Devices," Medical Products and Biomaterials, March 1998.
Figure 6 shows the plug 106A only partially filling the tube passage 102, but it will be appreciated that the plug 106A may completely fill the tube passage 106A. In that case, fluid flow would initially be completely obstructed. Fluid flow begins only after the plug 106A has been sufficiently absorbed to provide a path for fluid to flow out of the implant.
An absorbable plug may be used with any suitable configuration of implant, including implants with flow controlling rods or other flow controlling obstructions.
Similarly, an absorbable plug may have any suitable configuration and dimensions, selected in accordance with the flow characteristics that are desired. If desired, more than one absorbable plug may be used.
Some possible cross-sectional shapes for alternative absorbable plugs are shown in Figures 7A through 7D. Absorbable plug 106A has a circular cross-section.
Absorbable plug 106B is similar to absorbable plug 106A with the addition of external grooves 108B. Absorbable plug 106C
has a flat surface 110C. Absorbable plug 106D has a longitudinal bore 112D. Alternative constructions include combining external grooves and internal bores, changing the number of them, and/or arranging them helically or in any other suitable configuration. The absorbable plug may be in a tapered or other suitable shape. It will be appreciated that the configuration of the absorbable plug will affect the absorption of the absorbable plug, with the areas in contact with the fluid being absorbed first.
Figure 8 shows the use of an absorbable plug 106A
in conjunction with partially occluded side holes 104. Each of the side holes 104 is partially occluded by absorbable plugs 114, each of which has a central bore 116. As with the absorbable plug 106A in the tube passage 102, the absorbable plugs 114 in the side holes 104 may have any suitable configuration, and may be used in conjunction with any configuration of absorbable plug in the tube passage or with no absorbable plug in the tube passage.
Figures 9 through 11 show alternative mechanisms for partial and/or temporary occlusion of the flow passage.
In Figure 9, the intraocular implant 120 has a number of flow controlling strands 126 in the tube passage 122. The flow controlling strands 126 serve to alter the flow characteristics through the implant, either partially or wholly obstructing flow through the implant. The number and/or size of the strands may be varied as desired, and the strands may be of any suitable material. For example, ordinary sutures, such as polypropylene sutures, may be used.
At a period of time after implantation, one or more of the flow controlling strands 126 may be withdrawn from the implant (or advanced into the implant). Further strands may be withdrawn (or advanced) at later times. In this manner, the obstruction to flow through the implant can be altered, at once or over a period of time, after the implantation procedure has taken place.
It will be appreciated that the ability to withdraw or advance one or more strands over time allows the physician to alter the flow characteristics of the implant in accordance with the needs of the patient. For example, at a certain period of time after the implant has been implanted in a patient's eye, the physician can check the intraocular pressure of the eye and determine whether one or more strands should be withdrawn or advanced to increase or reduce flow through the implant. The patient can be checked periodically, and the strands can be left in place, withdrawn or advanced as appropriate over a period of time.
The ability to withdraw strands is useful in the event the implant should become clogged. In such a case, the physician can withdraw one or more strands in order to restore proper flow through the implant.
Figure 10 shows an end view of an implant with a plurality of flow controlling strands 126 in the tube passage 122. It will be appreciated that the strands 126 may be arranged within the tube passage 122 in any suitable manner, and the shape and configuration of the strands 126 are not limited to that shown. For example, the strands may have different cross-sections (e. g., oval, semi-circular, irregular, hollow, etc.) and different sizes. The cross-sectional shapes and dimensions may vary along the length of a single strand. Each of the strands in a single implant may have different configurations, e.g., different cross-sectional shapes and/or dimensions. With different strands in the implant, the physician can selectively withdraw (or advance) the appropriate strand or strands in accordance with the desired flow characteristics. For example, if a small increase in flow is desired, a strand with a small cross-section can be withdrawn, and if a larger increase in flow is desired, a strand with a larger cross-section can be withdrawn.
Figure 11 shows an implant in which a single flow controlling strand 128 having a knot 130 is placed within the tube passage 122. The knot 130 serves to increase the flow obstruction. Alternatively, a plug or other obstruction may be attached to the strand 128, and more than one strand 128 with a knot, plug or other attached obstruction may be used. Similar to the use of strands of different shapes and/or sizes, strands may be used having knots or plugs of different shapes and/or sizes, allowing selective withdrawal or advancement of the appropriate strand or strands in accordance with the desired flow characteristics.
Figure 12 shows an alternate construction of a flow controlling strand 132 in which the cross-sectional size of the strand varies along its length. The illustrated strand 132 has three different sections. Section 138 on the end of the strand has the smallest diameter, the adjacent section 136 has a slightly larger diameter, and the remainder 134 of the strand has an even larger diameter.
The remainder 134 of the strand may be sized to correspond to the diameter of the tube passage, with the sections 136 and 138 being incrementally smaller. Thus, with a tube passage having a diameter, for example, of 100 microns, the strand may also have a diameter of 100 microns, with incremental steps down to, for example, 20 microns. Of course, other dimensions may be used, and the remainder 134 of the strand need not have the same size as the tube passage. In the initial positioning, the strand 132 is located in the tube passage of the implant with the section 138 near the inlet end and with part of the section 134 located within the tube passage near the outlet end. When it is desired to increase the flow in the implant, the strand 132 may be partially withdrawn such that only section 134 comes out of the tube passage. Thus, the obstruction within the tube passage is decreased, thereby increasing the flow. Later, if desired, the other sections may be successively withdrawn. Alternatively, the strand may be further advanced into the tube passage to further constrict flow.
Variations of the strand shown in Figure 12 are possible, with the sections being aligned along the strand in any desired pattern. The concept of a single strand which may be partially withdrawn or advanced in successive increments to vary the flow in steps may additionally or alternatively be achieved by using knots or plugs of different shapes and/or sizes along the length of a strand.
A flow controlling strand in accordance with the invention may be completely separate from the implant and inserted into the implant some period of time after implantation, or the strand may be partially in the implant upon implantation, with the option of advancing it further into the implant at a later time.
An implant having withdrawable (and/or advanceable) flow controlling strands may be implanted using a delivery device 30 as shown in Figure 2A. In such a case, the strands that extend out of the outlet end of the implant may be accommodated in the central bore 36 of the delivery device 30. Alternatively, with a suitably sized opening 40 in the wall of the tube 34 of the delivery device 30, the strands may pass outside of the delivery device 30.
When the implant is implanted in an eye, the flow controlling strands can be oriented to extend under the conjunctiva away from the implant. The strands used may be long enough to extend out of the implant beyond the slit made in the conjunctiva for inserting the implant. In this case, after implanting the implant, the physician can tuck the loose ends of the strands under the conjunctiva to extend away from the slit. When it is desired to withdraw one or more of the strands, a small slit can be made in the conjunctiva near the ends of the strands, and the strands can be pulled through that slit. Because these ends are remote from the implant and the prior slit made in the conjunctiva, the potential trauma to the eye is reduced.
To fix the strands in place and facilitate later access to them, the loose ends may be sutured to the adjacent tissue, e.g., the sclera. This may be done either with additional sutures or with the strands themselves. In the latter case, suturing needles may be attached to the loose ends of the strands to facilitate suturing of the strands after implantation of the implant.
It will be appreciated that various features of the above-described embodiments may be combined as desired.
For example, the flow controlling strands may be made of absorbable material, leaving the option of having a physician physically withdraw the strands or allowing them to be absorbed. Additionally or alternatively, plugs or other obstructions secured to the strands may be made of absorbable material. Different strands, plugs or obstructions may be made from materials with different rates of absorption, and/or they may be made from a combination of materials with different rates of absorption.
As will also be appreciated by persons having ordinary skill in the art, the various embodiments of implants, methods of manufacture, delivery devices, and methods for implantation described hereinabove are given by way of example only. Various changes, modifications and variations may be applied to the described embodiments without departing from the scope of the invention, defined by the appended claims.
into desired tissue, with Figure 2A showing the delivery device and implant before insertion, Figure 2B showing the delivery device and implant being placed through the tissue, and Figure 2C
showing the inserted implant after the delivery device has been withdrawn;
Figure 3A is a side view of a second embodiment of a drainage implant;
Figure 3B is an end view of the drainage implant shown in Figure 3A;
Figure 3C is a cross-sectional view taken along the plane identified by the line 3C--3C in Figure 3A;
Figure 4A is a side view of a third embodiment of a drainage implant;
Figure 4B is an end view of the drainage implant shown in Figure 4A;
Figure 5 illustrates a second embodiment of a delivery device with an implant inserted in the delivery device and with the procedure at a stage corresponding to that in Figure 2B;
Figure 6 illustrates an intraocular implant according to the invention with a flow controlling plug made of absorbable material in the tube passage;
Figures 7A through 7D illustrate four variations of cross-sections for a flow controlling plug;
Figure 8 illustrates an intraocular implant according to the invention with a flow controlling plug made of absorbable material in the tube passage and with side holes partially occluded by plugs made of absorbable material;
Figure 9 illustrates an intraocular implant according to the invention with flow controlling strands in the tube passage;
Figure 10 illustrates an end view of an intraocular implant with flow controlling strands in the tube passage;
Figure 11 illustrates an intraocular implant according to the invention with a knotted flow controlling strand in the tube passage; and Figure 12 illustrates an alternative construction of a flow controlling strand.
DETAILED DESCRIPTION OF EMBODIMENTS OF THE INVENTION
Figures 1A and 1B show a side view and end view, respectively, of a first embodiment of a drainage implant 10 in accordance with the invention. The implant 10 has a tube 12 having a tube passage 14 for permitting fluid flow between an inlet end of the implant and an outlet end of the implant. One or more side holes 16 may be provided around the circumference of the tube 12 near the inlet end, allowing access for fluid flow into the tube passage 14.
The implant 10 has an outer flange 18 at the outlet end and a retention projection 20 near the inlet end.
The plane of the outer flange 18 may form an angle with the tube 12, with the angle selected to correspond to the angle between the surface of the tissue into which the implant 10 is to be inserted and the axis of insertion of the tube 12 of the implant 10.
Figures 2A through 2C illustrate an introducer or delivery device 30 for implanting the implant 10 and the method of implanting the implant 10 with that delivery device 30. The delivery device 30 has handle 32 and a tube 34 having a central bore 36 for accommodating the implant 10 during the implantation procedure. The delivery device 30 has a beveled tip 38 to allow penetration of the tissue 50 into which the implant is to be inserted. In an alternative embodiment, the implant itself penetrates the tissue by its beveled tip at the inlet end.
An opening 40 is provided in the wall of the tube S 34 of the delivery device 30. In this illustrated embodiment, the opening 40 allows both the retention projection 20 and the outer flange 18 to protrude beyond the wall of the tube 34 when the implant 10 is loaded in the delivery device 30. Because it projects beyond the wall of the tube 34, the retention projection 20 of the implant 10 can act as a hook during the implantation procedure.
As can be seen in Figure 1B, the flange 18 of the implant 10 has notches or grooves 19 on either side. These notches or grooves 19 correspond approximately to the width of the wall of the tube 34 of the delivery device 30 and accommodate the wall of the tube 34 of the delivery device 30 when the implant 10 is loaded in the delivery device 30.
The notches or grooves 19 may take any suitable shape.
Alternatively, the flange 18 may have a continuous width, with no notches or grooves, with the width of the flange 18 being slightly narrower than the diameter of the tube 12 of the implant 10. Further variations of the configuration of the flange 18 are possible.
To use the implant 10 and delivery device 30, the implant 10 is loaded in the delivery device 30 with the retention projection 20 protruding from the delivery device, as shown in Figure 2A. The delivery device 30, with the implant loaded inside, is then pressed through the tissue 50 through which drainage is desired, for example, the sclera of an eye. Figure 2B illustrates the delivery device 30 pressed through the tissue 50.
To facilitate introduction of the delivery device 30 and/or implant 10 into the tissue 50, the delivery device 30 may be oriented such that the beveled tip 38 forms a sharper angle with the tissue 50. Thus, for example, the delivery device as shown in Figure 2A may be rotated 180 degrees, i.e., with the retention projection 20 facing upward. In the case of an implant 10 being placed into the limbal sclera of an eye, this corresponds to the retention projection 20 being on the opposite side of the tube 12 from the iris. When the delivery device 30 and implant 10 are suitably through the tissue 50, they may be rotated to align the implant 10 properly in the tissue 50, with the flange 18 and retention projection 20 oriented as desired with respect to the tissue 50.
Once the retention projection 20 has fully penetrated through the tissue 50, the delivery device 30 is withdrawn. The retention projection 20 acts as a hook engaging the inside surface of the tissue 50, causing the implant 10 to stay implanted in the tissue 50 when the delivery device 30 is withdrawn. Figure 2C illustrates the implant 10 implanted in the tissue 50, with the delivery device 30 withdrawn.
Since the tube 34 of the delivery device 30 is hollow, it may be used to inject fluid or viscoelastic material. Thus, fluid may be injected into the anterior chamber of an eye upon implantation to reduce the risk of hypotony. Similarly, a viscoelastic material may be injected under the conjunctiva to help fill the bleb that exists after implantation.
The implant 10 may be molded out of a suitable material, for example, silicone. To provide the tube passage 14 of the implant 10, a thin wire may be used during the molding process. More than one wire may be used, in order to have more than one tube passage in the implant.
The implant alternatively may be constructed out of stainless steel or another suitable material. It may be coated with a suitable anti-fibrosis material, such as heparin.
The retention projection 20 may be formed of the same material as the rest of the implant 10. Alternatively, it may be made of a more flexible material to allow it to be flexed inward against the tube 12 of the implant 10 during penetration through the tissue 50. Alternatively, the retention projection 20 may be designed to lie initially relatively flat against the tube 12 for easier penetration and to prevent tearing of the tissue 50, to be extended outwardly by an expansion mechanism, for example a balloon, when the implant 10 is implanted.
Figures 3A, 3B and 3C show a side view, end view, and cross-section, respectively, of a second embodiment of a drainage implant 60 in accordance with the invention. Like the implant 10 shown in Figures 1A and 1B, the implant 60 in Figures 3A, 3B, and 3C has a tube 62 having a tube passage 64 and side holes 66 opening into the tube passage 64. The implant 60 also has an outer flange 68 at the outlet end and a retention projection 70 near the inlet end. In this case, the outer flange 68 projects beyond the outer surface of the tube 62 in all directions around the circumference of the tube 62.
Figures 4A and 4B show a side view and end view, respectively, of a third embodiment of a drainage implant 80, similar to the implant 60 shown in Figures 3A, 3B, and 3C. The tip 82 of the implant 80 is conical, in contrast to the blunt tip 72 of the implant 60.
In an alternative construction, the implant may be made with a closed end with a slit in it. Fluid can only pass through the device when the pressure rises sufficiently to open the slit. Alternatively, a different portion along the length of the tube passage may be provided with such a construction.
Figure 5 illustrates an alternative embodiment of a delivery device 90 in accordance with the invention. In this embodiment, the opening 92 allows only the retention projection 84 of the implant to protrude beyond the wall of the tube 94 of the delivery device. The outer flange 86 is accommodated within the central bore 96 of the delivery device 90. In this embodiment, the outer flange 86 must be folded or bent to be accommodated within the central bore 96 of the delivery device 90. The outer flange 86 is resilient, so that when the implant is removed from the delivery device, the outer flange 86 extends to a position relatively coplanar with the outer surface of the tissue into which the implant is inserted.
Similarly, the retention projection 84 may also be constructed to be sufficiently resilient to allow it to be compressed and completely accommodated within the central bore 96 of the delivery device 90. In addition, the delivery device 90 may be constructed with the tube 94 having a continuous outer wall, with no opening 92. To facilitate removal of the implant from the delivery device, a pusher rod or wire may be located within the bore of the delivery device. By advancing the pusher rod or wire within the delivery device against the implant, the physician can force the implant out of the delivery device, thereby allowing the retention projection to expand outwardly to its initial, relaxed position, enabling it to engage the inside surface of the tissue.
Various mechanisms may be used, if desired, for giving different flow characteristics to the implant. It may be desirable to use implants with different flow characteristics for different patients and/or to have an implant in which the flow characteristics may be changed after implantation in a particular patient.
U.S. Patent Application No. 08/975,386, filed November 20, 1997 and incorporated by reference herein, describes and illustrates various mechanisms for assisting in controlling the flow of fluid, e.g. aqueous humor, through an implant. It describes and illustrates the use of a flow controlling wire or rod in the tube passage of an implant.
The effect of the flow controlling rod or wire is to reduce the cross-sectional area through which the fluid flows for a particular length inside the tube passage of the implant. Because the flow is a function of the cross-section and length of the lumen through which it passes, the interposition of the flow controlling rod or wire serves to increase the resistance to flow. In an intraocular implant, far example, this assists in reducing the risk of hypotony.
The configuration and dimensions of the flow controlling rod or wire may be selected in accordance with the flow characteristics that are desired. It may have one or more internal bores or external grooves, any of which may be helically arranged to increase its length. It may be adjustable, by moving it axially or rotating it, to modify the flow characteristics. Persons skilled in the art will appreciate that numerous other variations are possible for the configuration of the flow controlling rod or wire.
The flow controlling rod or wire may have its axis aligned parallel with the axis of the tube passage, but other orientations are possible. For example, a flow controlling rod or wire having a diameter slightly smaller that the tube passage may be oriented transverse to the tube passage. The transversely oriented rod or wire will have a short length, corresponding approximately to the diameter of the tube or tube passage. It serves as an obstruction to the flow through the tube passage, altering the flow characteristics. Other obstruction may be placed in the tube passage for achieving similar results.
Another mechanism described and illustrated in U.S. Patent Application No. 08/975,386 for assisting in controlling the flow of fluid through an implant is the use of temporary occlusion. By occluding the flow passage of the implant with an absorbable material or with a material that may be removed after implantation, for example by a tool or laser probe, the resistance to flow can be reduced after implantation.
The use of temporary occlusion is advantageous in situations in which flow through the implant is desired to be kept low at implantation, and possibly also for a period of time after implantation. For example, when an implant is WO 00/72788 PCT/iJS00/15200 implanted in the eye, the incision in the conjunctiva and/or possible tearing of the sclera around the implant provide potential flow passages for aqueous humor. Thus, to reduce the risk of hypotony, it may be desirable to prevent or reduce flow through the implant upon implantation and for a period thereafter. Once the conjunctiva and/or sclera have healed, the flow through the implant can be increased.
The temporary occlusion need not be limited to any particular part of the flow passage. For example, the side holes and/or the tube passage of the implant may be filled, partially or wholly, with absorbable material. Thus, for example, as shown in Figure 6, a plug 106A of absorbable material may be placed in the tube passage 102 of the implant 100. With an absorbable material that biodegrades by surface erosion, as fluid contacts and flows adjacent to the plug 106A, the material of the plug 106A is absorbed into the fluid, thereby reducing the dimensions of the plug 106A. As the dimensions of the plug 106A are reduced, the resistance to flow through the implant is similarly reduced.
Alternatively, an absorbable material that biodegrades by bulk erosion may be used. Absorbable (biodegradable) materials are known and used, and such materials are described, for example, in Middleton & Tipton, "Synthetic Biodegradable Polymers as Medical Devices," Medical Products and Biomaterials, March 1998.
Figure 6 shows the plug 106A only partially filling the tube passage 102, but it will be appreciated that the plug 106A may completely fill the tube passage 106A. In that case, fluid flow would initially be completely obstructed. Fluid flow begins only after the plug 106A has been sufficiently absorbed to provide a path for fluid to flow out of the implant.
An absorbable plug may be used with any suitable configuration of implant, including implants with flow controlling rods or other flow controlling obstructions.
Similarly, an absorbable plug may have any suitable configuration and dimensions, selected in accordance with the flow characteristics that are desired. If desired, more than one absorbable plug may be used.
Some possible cross-sectional shapes for alternative absorbable plugs are shown in Figures 7A through 7D. Absorbable plug 106A has a circular cross-section.
Absorbable plug 106B is similar to absorbable plug 106A with the addition of external grooves 108B. Absorbable plug 106C
has a flat surface 110C. Absorbable plug 106D has a longitudinal bore 112D. Alternative constructions include combining external grooves and internal bores, changing the number of them, and/or arranging them helically or in any other suitable configuration. The absorbable plug may be in a tapered or other suitable shape. It will be appreciated that the configuration of the absorbable plug will affect the absorption of the absorbable plug, with the areas in contact with the fluid being absorbed first.
Figure 8 shows the use of an absorbable plug 106A
in conjunction with partially occluded side holes 104. Each of the side holes 104 is partially occluded by absorbable plugs 114, each of which has a central bore 116. As with the absorbable plug 106A in the tube passage 102, the absorbable plugs 114 in the side holes 104 may have any suitable configuration, and may be used in conjunction with any configuration of absorbable plug in the tube passage or with no absorbable plug in the tube passage.
Figures 9 through 11 show alternative mechanisms for partial and/or temporary occlusion of the flow passage.
In Figure 9, the intraocular implant 120 has a number of flow controlling strands 126 in the tube passage 122. The flow controlling strands 126 serve to alter the flow characteristics through the implant, either partially or wholly obstructing flow through the implant. The number and/or size of the strands may be varied as desired, and the strands may be of any suitable material. For example, ordinary sutures, such as polypropylene sutures, may be used.
At a period of time after implantation, one or more of the flow controlling strands 126 may be withdrawn from the implant (or advanced into the implant). Further strands may be withdrawn (or advanced) at later times. In this manner, the obstruction to flow through the implant can be altered, at once or over a period of time, after the implantation procedure has taken place.
It will be appreciated that the ability to withdraw or advance one or more strands over time allows the physician to alter the flow characteristics of the implant in accordance with the needs of the patient. For example, at a certain period of time after the implant has been implanted in a patient's eye, the physician can check the intraocular pressure of the eye and determine whether one or more strands should be withdrawn or advanced to increase or reduce flow through the implant. The patient can be checked periodically, and the strands can be left in place, withdrawn or advanced as appropriate over a period of time.
The ability to withdraw strands is useful in the event the implant should become clogged. In such a case, the physician can withdraw one or more strands in order to restore proper flow through the implant.
Figure 10 shows an end view of an implant with a plurality of flow controlling strands 126 in the tube passage 122. It will be appreciated that the strands 126 may be arranged within the tube passage 122 in any suitable manner, and the shape and configuration of the strands 126 are not limited to that shown. For example, the strands may have different cross-sections (e. g., oval, semi-circular, irregular, hollow, etc.) and different sizes. The cross-sectional shapes and dimensions may vary along the length of a single strand. Each of the strands in a single implant may have different configurations, e.g., different cross-sectional shapes and/or dimensions. With different strands in the implant, the physician can selectively withdraw (or advance) the appropriate strand or strands in accordance with the desired flow characteristics. For example, if a small increase in flow is desired, a strand with a small cross-section can be withdrawn, and if a larger increase in flow is desired, a strand with a larger cross-section can be withdrawn.
Figure 11 shows an implant in which a single flow controlling strand 128 having a knot 130 is placed within the tube passage 122. The knot 130 serves to increase the flow obstruction. Alternatively, a plug or other obstruction may be attached to the strand 128, and more than one strand 128 with a knot, plug or other attached obstruction may be used. Similar to the use of strands of different shapes and/or sizes, strands may be used having knots or plugs of different shapes and/or sizes, allowing selective withdrawal or advancement of the appropriate strand or strands in accordance with the desired flow characteristics.
Figure 12 shows an alternate construction of a flow controlling strand 132 in which the cross-sectional size of the strand varies along its length. The illustrated strand 132 has three different sections. Section 138 on the end of the strand has the smallest diameter, the adjacent section 136 has a slightly larger diameter, and the remainder 134 of the strand has an even larger diameter.
The remainder 134 of the strand may be sized to correspond to the diameter of the tube passage, with the sections 136 and 138 being incrementally smaller. Thus, with a tube passage having a diameter, for example, of 100 microns, the strand may also have a diameter of 100 microns, with incremental steps down to, for example, 20 microns. Of course, other dimensions may be used, and the remainder 134 of the strand need not have the same size as the tube passage. In the initial positioning, the strand 132 is located in the tube passage of the implant with the section 138 near the inlet end and with part of the section 134 located within the tube passage near the outlet end. When it is desired to increase the flow in the implant, the strand 132 may be partially withdrawn such that only section 134 comes out of the tube passage. Thus, the obstruction within the tube passage is decreased, thereby increasing the flow. Later, if desired, the other sections may be successively withdrawn. Alternatively, the strand may be further advanced into the tube passage to further constrict flow.
Variations of the strand shown in Figure 12 are possible, with the sections being aligned along the strand in any desired pattern. The concept of a single strand which may be partially withdrawn or advanced in successive increments to vary the flow in steps may additionally or alternatively be achieved by using knots or plugs of different shapes and/or sizes along the length of a strand.
A flow controlling strand in accordance with the invention may be completely separate from the implant and inserted into the implant some period of time after implantation, or the strand may be partially in the implant upon implantation, with the option of advancing it further into the implant at a later time.
An implant having withdrawable (and/or advanceable) flow controlling strands may be implanted using a delivery device 30 as shown in Figure 2A. In such a case, the strands that extend out of the outlet end of the implant may be accommodated in the central bore 36 of the delivery device 30. Alternatively, with a suitably sized opening 40 in the wall of the tube 34 of the delivery device 30, the strands may pass outside of the delivery device 30.
When the implant is implanted in an eye, the flow controlling strands can be oriented to extend under the conjunctiva away from the implant. The strands used may be long enough to extend out of the implant beyond the slit made in the conjunctiva for inserting the implant. In this case, after implanting the implant, the physician can tuck the loose ends of the strands under the conjunctiva to extend away from the slit. When it is desired to withdraw one or more of the strands, a small slit can be made in the conjunctiva near the ends of the strands, and the strands can be pulled through that slit. Because these ends are remote from the implant and the prior slit made in the conjunctiva, the potential trauma to the eye is reduced.
To fix the strands in place and facilitate later access to them, the loose ends may be sutured to the adjacent tissue, e.g., the sclera. This may be done either with additional sutures or with the strands themselves. In the latter case, suturing needles may be attached to the loose ends of the strands to facilitate suturing of the strands after implantation of the implant.
It will be appreciated that various features of the above-described embodiments may be combined as desired.
For example, the flow controlling strands may be made of absorbable material, leaving the option of having a physician physically withdraw the strands or allowing them to be absorbed. Additionally or alternatively, plugs or other obstructions secured to the strands may be made of absorbable material. Different strands, plugs or obstructions may be made from materials with different rates of absorption, and/or they may be made from a combination of materials with different rates of absorption.
As will also be appreciated by persons having ordinary skill in the art, the various embodiments of implants, methods of manufacture, delivery devices, and methods for implantation described hereinabove are given by way of example only. Various changes, modifications and variations may be applied to the described embodiments without departing from the scope of the invention, defined by the appended claims.
Claims (36)
1. An implant in combination with a delivery device for implanting the implant, wherein the implant comprises a tube and an outwardly extending retention projection, wherein the delivery device comprises a tube having an outside surface and a central bore for accommodating the implant, and wherein the delivery device has an opening in the side of the tube allowing the retention projection to project beyond the outside surface of the tube of the delivery device.
2. An implant and delivery device according to claim 1, wherein the implant is formed of plastic.
3. An implant and delivery device according to claim 1, wherein the retention projection is located at an inlet end of the implant, and wherein the implant further comprises an outer flange located at an outlet end of the implant.
4. An implant and delivery device according to claim 3, wherein the opening in the side of the tube of the delivery device also allows the outer flange of the implant to project beyond the outside surface of the tube of the delivery device.
5. An implant and delivery device according to claim 3, wherein the outer flange of the implant is resilient so that it may be accommodated within the central bore of the tube of the delivery device.
6. An implant in combination with a delivery device for implanting the implant, wherein the implant comprises a tube having an inlet end and an outlet end and an outwardly extending retention projection, wherein the delivery device comprises a tube having an outside surface, a central bore for accommodating the implant and an opening at one end for allowing the implant to exit the central bore, and wherein the implant is accommodated within the central bore with its inlet end closer to the opening than its outlet end so that the inlet end of the implant exits the central bore of the delivery device before the outlet end.
7. An implant and delivery device according to claim 6, wherein the implant is formed of plastic.
8. An implant and delivery device according to claim 6, wherein the retention projection is located proximate the inlet end of the implant, and wherein the implant further comprises an outer flange located proximate the outlet end of the implant.
9. An implant and delivery device according to claim 8, wherein the outer flange of the implant is resilient so that it may be accommodated within the central bore of the tube of the delivery device.
10. An implant and delivery device according to claim 6, wherein the retention projection of the implant is resilient so that it may be accommodated within the central bore of the tube of the delivery device.
11. A delivery device for use in implanting an implant, wherein the delivery device comprises a tube having an outside surface and a central bore for accommodating the implant, and wherein the delivery device has an opening in the side of the tube allowing a retention projection of the implant to project beyond the outside surface of the tube of the delivery device.
12. A delivery device according to claim 11, wherein the opening in the side of the tube of the delivery device also allows an outer flange of the implant to project beyond the outside surface of the tube of the delivery device.
13. A method of implanting an implant, comprising the steps of:
placing the implant in a central bore of a delivery device, said placing step including allowing a retention projection of the implant to project beyond an outer surface of a tube of the delivery device;
inserting the delivery device with the implant placed in the delivery device through tissue into which the implant is to be implanted; and withdrawing the delivery device, leaving the implant implanted in the tissue.
placing the implant in a central bore of a delivery device, said placing step including allowing a retention projection of the implant to project beyond an outer surface of a tube of the delivery device;
inserting the delivery device with the implant placed in the delivery device through tissue into which the implant is to be implanted; and withdrawing the delivery device, leaving the implant implanted in the tissue.
14. A method of implanting an implant, comprising the steps of:
placing the implant in a central bore of a delivery device, said placing step including positioning the implant so that the implant is accommodated within the central bore with an inlet end of the implant closer to an opening in the delivery device than an outlet end of the implant;
inserting the delivery device with the implant placed in the delivery device through tissue into which the implant is to be implanted; and withdrawing the delivery device, leaving the implant implanted in the tissue.
placing the implant in a central bore of a delivery device, said placing step including positioning the implant so that the implant is accommodated within the central bore with an inlet end of the implant closer to an opening in the delivery device than an outlet end of the implant;
inserting the delivery device with the implant placed in the delivery device through tissue into which the implant is to be implanted; and withdrawing the delivery device, leaving the implant implanted in the tissue.
15. A method of manufacturing a flow control device comprising the steps of:
providing a mold having a cavity with a generally tubular shape;
positioning a wire within the mold such that the wire is suspended to extend along a longitudinal axis of the generally tubular shaped cavity;
putting a moldable material into the mold; and allowing the moldable material to harden such that it hardens in the generally tubular shape of the mold, with a longitudinal tube passage formed in the hardened material on account of the wire positioned in the mold.
providing a mold having a cavity with a generally tubular shape;
positioning a wire within the mold such that the wire is suspended to extend along a longitudinal axis of the generally tubular shaped cavity;
putting a moldable material into the mold; and allowing the moldable material to harden such that it hardens in the generally tubular shape of the mold, with a longitudinal tube passage formed in the hardened material on account of the wire positioned in the mold.
16. An implant for regulating fluid flow comprising:
a tube comprising an inlet end, an outlet end, and a tube passage extending between the inlet end and the outlet end for permitting fluid to flow through the tube passage; and absorbable material located within the tube passage, wherein initially the absorbable material serves to partially or wholly obstruct flow through the tube passage and wherein the absorbable material erodes as it contacts fluid such that the obstruction of flow through the tube passage is reduced over time.
a tube comprising an inlet end, an outlet end, and a tube passage extending between the inlet end and the outlet end for permitting fluid to flow through the tube passage; and absorbable material located within the tube passage, wherein initially the absorbable material serves to partially or wholly obstruct flow through the tube passage and wherein the absorbable material erodes as it contacts fluid such that the obstruction of flow through the tube passage is reduced over time.
17. An implant according to claim 16, wherein initially the absorbable material substantially fills the tube passage so as to prevent flow through the tube passage.
18. An implant according to claim 16, wherein initially the absorbable material partially fills the tube passage so as to allow partial flow through the tube passage.
19. An implant for regulating fluid flow comprising:
a tube comprising an inlet end, an outlet end, and a tube passage extending between the inlet end and the outlet end for permitting fluid to flow through the tube passage; and one or more flow controlling strands located within the tube passage, wherein initially the one or more flow controlling strands serve to partially or wholly obstruct flow through the tube passage and wherein at least one flow controlling strand may be displaced with respect to the tube passage to change the obstruction of flow through the tube passage.
a tube comprising an inlet end, an outlet end, and a tube passage extending between the inlet end and the outlet end for permitting fluid to flow through the tube passage; and one or more flow controlling strands located within the tube passage, wherein initially the one or more flow controlling strands serve to partially or wholly obstruct flow through the tube passage and wherein at least one flow controlling strand may be displaced with respect to the tube passage to change the obstruction of flow through the tube passage.
20. An implant according to claim 19, wherein initially the one or more flow controlling strands substantially fill the tube passage so as to prevent flow through the tube passage.
21. An implant according to claim 19, wherein initially the one or more flow controlling strands partially fill the tube passage so as to allow partial flow through the tube passage.
22. An implant according to claim 19 further comprising a plug attached to one or more of said flow controlling strands.
23. An implant according to claim 19 wherein one or more of said flow controlling strands has a knot in it.
24. An implant according to claim 19, wherein at least one flow controlling strand may be withdrawn from the tube passage to reduce the obstruction of flow through the tube passage.
25. An implant according to claim 24, wherein at least one flow controlling strand may be completely withdrawn from the tube passage to reduce the obstruction of flow through the tube passage.
26. An implant according to claim 24, wherein at least one flow controlling strand may be partially withdrawn from the tube passage to reduce the obstruction of flow through the tube passage.
27. An implant according to claim 19, wherein at least one flow controlling strand may be advanced within the tube passage to increase the obstruction of flow through the tube passage.
28. An implant according to claim 19 comprising at least two strands.
29. An implant according to claim 28, wherein two of the strands have different cross-sectional dimensions.
30. An implant according to claim 28, wherein each of at least two strands has a plug attached to it, with the plugs on the at least two strands having different cross-sectional dimensions.
31. An implant according to claim 28, wherein each of at least two strands has a knot in it, with the knots in the at least two strands having different dimensions.
32. An implant according to claim 19 wherein at least one flow controlling strand has different areas along its length with different cross-sectional dimensions.
33. An implant according to claim 19 wherein at least one flow controlling strand is made of absorbable material.
34. An implant for regulating fluid flow comprising:
a tube comprising an inlet end, an outlet end, and a tube passage extending between the inlet end and the outlet end for permitting fluid to flow through the tube passage; and means for temporarily obstructing, in whole or in part, fluid flow through the tube passage.
a tube comprising an inlet end, an outlet end, and a tube passage extending between the inlet end and the outlet end for permitting fluid to flow through the tube passage; and means for temporarily obstructing, in whole or in part, fluid flow through the tube passage.
35. An implant according to claim 34 wherein the means for temporarily obstructing, in whole or in part, fluid flow through the tube passage comprises absorbable material located in the tube passage.
36. An implant according to claim 34 wherein the means for temporarily obstructing, in whole or in part, fluid flow through the tube passage comprises at least one flow controlling strand located in the tube passage.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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US09/324,694 US6558342B1 (en) | 1999-06-02 | 1999-06-02 | Flow control device, introducer and method of implanting |
US09/324,694 | 1999-06-02 | ||
PCT/US2000/015200 WO2000072788A1 (en) | 1999-06-02 | 2000-06-02 | Flow control device, introducer and method of implanting |
Publications (1)
Publication Number | Publication Date |
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CA2374314A1 true CA2374314A1 (en) | 2000-12-07 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002374314A Abandoned CA2374314A1 (en) | 1999-06-02 | 2000-06-02 | Flow control device, introducer and method of implanting |
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---|---|
US (2) | US6558342B1 (en) |
EP (2) | EP1800635B1 (en) |
JP (1) | JP4195203B2 (en) |
KR (1) | KR100482033B1 (en) |
CN (1) | CN1367673A (en) |
AT (1) | ATE357892T1 (en) |
AU (1) | AU5315100A (en) |
CA (1) | CA2374314A1 (en) |
DE (1) | DE60034123T2 (en) |
ES (2) | ES2547355T3 (en) |
HK (1) | HK1047534A1 (en) |
IL (1) | IL146870A0 (en) |
WO (1) | WO2000072788A1 (en) |
Families Citing this family (137)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6203513B1 (en) | 1997-11-20 | 2001-03-20 | Optonol Ltd. | Flow regulating implant, method of manufacture, and delivery device |
US8313454B2 (en) | 1997-11-20 | 2012-11-20 | Optonol Ltd. | Fluid drainage device, delivery device, and associated methods of use and manufacture |
HUP0201111A3 (en) | 1999-04-26 | 2004-05-28 | Gmp Vision Solutions Inc Ft La | Shunt device for treating glaucoma |
US20050119737A1 (en) * | 2000-01-12 | 2005-06-02 | Bene Eric A. | Ocular implant and methods for making and using same |
US6375642B1 (en) * | 2000-02-15 | 2002-04-23 | Grieshaber & Co. Ag Schaffhausen | Method of and device for improving a drainage of aqueous humor within the eye |
US6533768B1 (en) | 2000-04-14 | 2003-03-18 | The Regents Of The University Of California | Device for glaucoma treatment and methods thereof |
US7867186B2 (en) | 2002-04-08 | 2011-01-11 | Glaukos Corporation | Devices and methods for treatment of ocular disorders |
US6638239B1 (en) * | 2000-04-14 | 2003-10-28 | Glaukos Corporation | Apparatus and method for treating glaucoma |
US20040111050A1 (en) * | 2000-04-14 | 2004-06-10 | Gregory Smedley | Implantable ocular pump to reduce intraocular pressure |
US7708711B2 (en) | 2000-04-14 | 2010-05-04 | Glaukos Corporation | Ocular implant with therapeutic agents and methods thereof |
US7431710B2 (en) | 2002-04-08 | 2008-10-07 | Glaukos Corporation | Ocular implants with anchors and methods thereof |
WO2002080811A2 (en) * | 2001-04-07 | 2002-10-17 | Glaukos Corporation | Glaucoma stent and methods thereof for glaucoma treatment |
US7678065B2 (en) | 2001-05-02 | 2010-03-16 | Glaukos Corporation | Implant with intraocular pressure sensor for glaucoma treatment |
WO2002089699A2 (en) * | 2001-05-03 | 2002-11-14 | Glaukos Corporation | Medical device and methods of use for glaucoma treatment |
US7331984B2 (en) * | 2001-08-28 | 2008-02-19 | Glaukos Corporation | Glaucoma stent for treating glaucoma and methods of use |
FR2830186B1 (en) * | 2001-10-03 | 2004-06-11 | Didier Ducournau | TOOL FOR THE INCISION OF SCLEROTICS FOR THE PLACEMENT OF A BREWING CANNULA AND CORRESPONDING BREWING CANNULA |
US20030093084A1 (en) * | 2001-11-13 | 2003-05-15 | Optonol Ltd. | Delivery devices for flow regulating implants |
US7186232B1 (en) * | 2002-03-07 | 2007-03-06 | Glaukoa Corporation | Fluid infusion methods for glaucoma treatment |
US7951155B2 (en) | 2002-03-15 | 2011-05-31 | Glaukos Corporation | Combined treatment for cataract and glaucoma treatment |
US9301875B2 (en) | 2002-04-08 | 2016-04-05 | Glaukos Corporation | Ocular disorder treatment implants with multiple opening |
US6893442B2 (en) * | 2002-06-14 | 2005-05-17 | Ablatrics, Inc. | Vacuum coagulation probe for atrial fibrillation treatment |
MXPA05002841A (en) * | 2002-09-18 | 2005-05-27 | Oculex Pharm Inc | Methods and apparatus for delivery of ocular implants. |
AT413332B (en) * | 2003-01-23 | 2006-02-15 | Clemens Dr Vass | DRAINAGE IMPLANT FOR THE DISPOSAL OF CHAMBER WATER FROM THE FRONT EYE CHAMBER IN THE EPISCLERAL VEINS |
US20040162545A1 (en) * | 2003-02-14 | 2004-08-19 | Brown J. David | Bypass for glaucoma drainage device |
CA2515568A1 (en) * | 2003-02-18 | 2004-09-02 | Hampar Karageozian | Methods and devices for draining fluids and lowering intraocular pressure |
US8012115B2 (en) | 2003-02-18 | 2011-09-06 | S.K. Pharmaceuticals, Inc. | Optic nerve implants |
US20040193095A1 (en) * | 2003-03-29 | 2004-09-30 | Shadduck John H. | Implants for treating ocular hypertension, methods of use and methods of fabrication |
US20040225250A1 (en) | 2003-05-05 | 2004-11-11 | Michael Yablonski | Internal shunt and method for treating glaucoma |
US20040236343A1 (en) * | 2003-05-23 | 2004-11-25 | Taylor Jon B. | Insertion tool for ocular implant and method for using same |
US7291125B2 (en) * | 2003-11-14 | 2007-11-06 | Transcend Medical, Inc. | Ocular pressure regulation |
US7226540B2 (en) * | 2004-02-24 | 2007-06-05 | Becton, Dickinson And Company | MEMS filter module |
US7384550B2 (en) * | 2004-02-24 | 2008-06-10 | Becton, Dickinson And Company | Glaucoma implant having MEMS filter module |
US20050194303A1 (en) * | 2004-03-02 | 2005-09-08 | Sniegowski Jeffry J. | MEMS flow module with filtration and pressure regulation capabilities |
US20060173399A1 (en) * | 2005-02-01 | 2006-08-03 | Rodgers M S | MEMS flow module with pivoting-type baffle |
US20060206049A1 (en) * | 2005-03-14 | 2006-09-14 | Rodgers M S | MEMS flow module with piston-type pressure regulating structure |
US7364564B2 (en) * | 2004-03-02 | 2008-04-29 | Becton, Dickinson And Company | Implant having MEMS flow module with movable, flow-controlling baffle |
US20060219627A1 (en) * | 2005-03-31 | 2006-10-05 | Rodgers M S | MEMS filter module with concentric filtering walls |
US20060036207A1 (en) * | 2004-02-24 | 2006-02-16 | Koonmen James P | System and method for treating glaucoma |
US7544176B2 (en) * | 2005-06-21 | 2009-06-09 | Becton, Dickinson And Company | Glaucoma implant having MEMS flow module with flexing diaphragm for pressure regulation |
US20050206616A1 (en) * | 2004-03-17 | 2005-09-22 | Franz Harary | Video jacket, belt and badge and method of use |
SE0401182D0 (en) * | 2004-05-05 | 2004-05-05 | Q Med Ab | Novel use of a viscoelastic composition |
US20050267398A1 (en) * | 2004-05-27 | 2005-12-01 | Dimitri Protopsaltis | Glaucoma shunt |
US7862531B2 (en) * | 2004-06-25 | 2011-01-04 | Optonol Ltd. | Flow regulating implants |
US20070118065A1 (en) * | 2004-12-03 | 2007-05-24 | Leonard Pinchuk | Glaucoma Implant Device |
US7594899B2 (en) * | 2004-12-03 | 2009-09-29 | Innfocus, Llc | Glaucoma implant device |
US9186274B2 (en) * | 2005-02-23 | 2015-11-17 | Camras Vision Inc. | Method and apparatus for reducing intraocular pressure |
US7641627B2 (en) * | 2005-02-23 | 2010-01-05 | Camras Carl B | Method and apparatus for reducing intraocular pressure |
US8062305B2 (en) * | 2005-03-16 | 2011-11-22 | Tyco Healthcare Group Lp | Surgical portal with enhanced retention capabilities |
JPWO2006101259A1 (en) * | 2005-03-23 | 2008-09-04 | 国立大学法人金沢大学 | Eyeball cannula |
US9084662B2 (en) * | 2006-01-17 | 2015-07-21 | Transcend Medical, Inc. | Drug delivery treatment device |
ES2551782T3 (en) | 2006-01-17 | 2015-11-23 | Transcend Medical, Inc. | Device for the treatment of glaucoma |
US20120123316A1 (en) | 2010-11-15 | 2012-05-17 | Aquesys, Inc. | Intraocular shunts for placement in the intra-tenon's space |
US8828070B2 (en) | 2010-11-15 | 2014-09-09 | Aquesys, Inc. | Devices for deploying intraocular shunts |
US8758290B2 (en) | 2010-11-15 | 2014-06-24 | Aquesys, Inc. | Devices and methods for implanting a shunt in the suprachoroidal space |
US8974511B2 (en) | 2010-11-15 | 2015-03-10 | Aquesys, Inc. | Methods for treating closed angle glaucoma |
US20080108933A1 (en) | 2006-06-30 | 2008-05-08 | Dao-Yi Yu | Methods, Systems and Apparatus for Relieving Pressure in an Organ |
US8852137B2 (en) | 2010-11-15 | 2014-10-07 | Aquesys, Inc. | Methods for implanting a soft gel shunt in the suprachoroidal space |
US9095411B2 (en) | 2010-11-15 | 2015-08-04 | Aquesys, Inc. | Devices for deploying intraocular shunts |
US8801766B2 (en) | 2010-11-15 | 2014-08-12 | Aquesys, Inc. | Devices for deploying intraocular shunts |
US8663303B2 (en) | 2010-11-15 | 2014-03-04 | Aquesys, Inc. | Methods for deploying an intraocular shunt from a deployment device and into an eye |
US8721702B2 (en) | 2010-11-15 | 2014-05-13 | Aquesys, Inc. | Intraocular shunt deployment devices |
US10085884B2 (en) | 2006-06-30 | 2018-10-02 | Aquesys, Inc. | Intraocular devices |
US8852256B2 (en) | 2010-11-15 | 2014-10-07 | Aquesys, Inc. | Methods for intraocular shunt placement |
US8308701B2 (en) | 2010-11-15 | 2012-11-13 | Aquesys, Inc. | Methods for deploying intraocular shunts |
BRPI0715467A2 (en) | 2006-07-11 | 2013-03-12 | Refocus Group Inc | scleral prosthesis for treatment of presbyopia and other eye diseases and related device and methods |
US8911496B2 (en) | 2006-07-11 | 2014-12-16 | Refocus Group, Inc. | Scleral prosthesis for treating presbyopia and other eye disorders and related devices and methods |
US8506515B2 (en) | 2006-11-10 | 2013-08-13 | Glaukos Corporation | Uveoscleral shunt and methods for implanting same |
WO2008112935A1 (en) * | 2007-03-13 | 2008-09-18 | University Of Rochester | Intraocular pressure regulating device |
US7678147B2 (en) * | 2007-05-01 | 2010-03-16 | Moximed, Inc. | Extra-articular implantable mechanical energy absorbing systems and implantation method |
WO2008154502A1 (en) * | 2007-06-07 | 2008-12-18 | Yale University | Uveoscleral drainage device |
EP2173289A4 (en) | 2007-07-17 | 2010-11-24 | Transcend Medical Inc | Ocular implant with hydrogel expansion capabilities |
US20090043242A1 (en) * | 2007-08-07 | 2009-02-12 | Becton, Dickinson And Company | Instruments and methods for implanting corneal implant via extra-and intra-cameral routes |
JP5390531B2 (en) | 2007-11-23 | 2014-01-15 | エコール ポリテクニーク フェデラル ドゥ ローザンヌ(エーペーエフエル) | Non-invasive adjustable drainage device |
US8109896B2 (en) | 2008-02-11 | 2012-02-07 | Optonol Ltd. | Devices and methods for opening fluid passageways |
ES2640867T3 (en) | 2008-06-25 | 2017-11-07 | Novartis Ag | Eye implant with ability to change shape |
EP2358304A4 (en) * | 2008-11-19 | 2014-03-26 | Refocus Group Inc | Artificial intraocular lens, altered natural crystalline lens, or refilled natural crystalline lens capsule with one or more scleral prostheses for improved performance |
PL2209056T3 (en) * | 2009-01-16 | 2012-05-31 | Refractory Intellectual Property Gmbh & Co Kg | Flow control device in a continuous casting steel-making process |
JP5524983B2 (en) | 2009-01-28 | 2014-06-18 | トランセンド・メディカル・インコーポレイテッド | Implant system |
US10206813B2 (en) | 2009-05-18 | 2019-02-19 | Dose Medical Corporation | Implants with controlled drug delivery features and methods of using same |
JP5937004B2 (en) * | 2009-05-18 | 2016-06-22 | ドーズ メディカル コーポレーションDose Medical Corporation | Drug-eluting intraocular implant |
WO2012071476A2 (en) | 2010-11-24 | 2012-05-31 | David Haffner | Drug eluting ocular implant |
US20110105990A1 (en) * | 2009-11-04 | 2011-05-05 | Silvestrini Thomas A | Zonal drug delivery device and method |
EP2501428B1 (en) * | 2009-11-18 | 2016-07-06 | Ruben A. Quintero | Fetal shunt |
US8529492B2 (en) * | 2009-12-23 | 2013-09-10 | Trascend Medical, Inc. | Drug delivery devices and methods |
WO2011087577A1 (en) | 2009-12-23 | 2011-07-21 | Alcon Research, Ltd. | Ophthalmic valved trocar cannula |
US8343106B2 (en) | 2009-12-23 | 2013-01-01 | Alcon Research, Ltd. | Ophthalmic valved trocar vent |
EP2603185B1 (en) * | 2010-08-12 | 2016-10-05 | Nanyang Technological University | A glaucoma valve comprising a degradable polymer with a steroid |
US10842671B2 (en) | 2010-11-15 | 2020-11-24 | Aquesys, Inc. | Intraocular shunt placement in the suprachoroidal space |
US8585629B2 (en) | 2010-11-15 | 2013-11-19 | Aquesys, Inc. | Systems for deploying intraocular shunts |
US9101445B2 (en) | 2011-01-14 | 2015-08-11 | Ecole Polytechnique Federale De Lausanne (Epfl) | Apparatus and methods for treating excess intraocular fluid |
US10603214B2 (en) | 2011-01-14 | 2020-03-31 | Ecole Polytechnique Federale De Lausanne (Epfl) | Apparatus and methods for treating excess intraocular fluid |
US10245178B1 (en) | 2011-06-07 | 2019-04-02 | Glaukos Corporation | Anterior chamber drug-eluting ocular implant |
EP4193907A1 (en) | 2011-09-13 | 2023-06-14 | Glaukos Corporation | Intraocular physiological sensor |
US9808373B2 (en) | 2013-06-28 | 2017-11-07 | Aquesys, Inc. | Intraocular shunt implantation |
US8852136B2 (en) | 2011-12-08 | 2014-10-07 | Aquesys, Inc. | Methods for placing a shunt into the intra-scleral space |
US9610195B2 (en) | 2013-02-27 | 2017-04-04 | Aquesys, Inc. | Intraocular shunt implantation methods and devices |
US10080682B2 (en) | 2011-12-08 | 2018-09-25 | Aquesys, Inc. | Intrascleral shunt placement |
US8765210B2 (en) | 2011-12-08 | 2014-07-01 | Aquesys, Inc. | Systems and methods for making gelatin shunts |
US9101444B2 (en) | 2012-01-12 | 2015-08-11 | Innfocus, Inc. | Method, surgical kit and device for treating glaucoma |
EP2830553B1 (en) | 2012-03-26 | 2017-12-27 | Glaukos Corporation | Apparatus for delivering multiple ocular implants |
US10085633B2 (en) | 2012-04-19 | 2018-10-02 | Novartis Ag | Direct visualization system for glaucoma treatment |
US9241832B2 (en) | 2012-04-24 | 2016-01-26 | Transcend Medical, Inc. | Delivery system for ocular implant |
US9480598B2 (en) | 2012-09-17 | 2016-11-01 | Novartis Ag | Expanding ocular implant devices and methods |
WO2014078288A1 (en) | 2012-11-14 | 2014-05-22 | Transcend Medical, Inc. | Flow promoting ocular implant |
US10159600B2 (en) | 2013-02-19 | 2018-12-25 | Aquesys, Inc. | Adjustable intraocular flow regulation |
US9125723B2 (en) | 2013-02-19 | 2015-09-08 | Aquesys, Inc. | Adjustable glaucoma implant |
US9730638B2 (en) | 2013-03-13 | 2017-08-15 | Glaukos Corporation | Intraocular physiological sensor |
US9592151B2 (en) | 2013-03-15 | 2017-03-14 | Glaukos Corporation | Systems and methods for delivering an ocular implant to the suprachoroidal space within an eye |
US10517759B2 (en) | 2013-03-15 | 2019-12-31 | Glaukos Corporation | Glaucoma stent and methods thereof for glaucoma treatment |
US9987163B2 (en) | 2013-04-16 | 2018-06-05 | Novartis Ag | Device for dispensing intraocular substances |
US9795503B2 (en) | 2013-10-18 | 2017-10-24 | Rodolfo Alfredo PEREZ GROSSMANN | Method and apparatus for trabeculectomy and suprachoroidal shunt surgery |
BR122020011777B1 (en) | 2013-11-14 | 2022-01-25 | AqueSys, Inc | Insertion device for the treatment of glaucoma |
AU2015266850B2 (en) | 2014-05-29 | 2019-12-05 | Glaukos Corporation | Implants with controlled drug delivery features and methods of using same |
PE20151266A1 (en) * | 2014-07-01 | 2015-09-10 | Velasquez Mario Eduardo Miranda | DRAINAGE DEVICE FOR THE CONTROL OF INTRAOCULAR PRESSURE IN GLAUCOMA |
US10201451B2 (en) | 2014-08-29 | 2019-02-12 | Camras Vision Inc. | Device and method for reducing intraocular pressure |
US10342702B2 (en) | 2014-08-29 | 2019-07-09 | Camras Vision Inc. | Apparatus and method for reducing intraocular pressure |
CN104490515A (en) * | 2014-12-18 | 2015-04-08 | 肖真 | Glaucoma valve and glaucoma drainage device |
RU2687764C1 (en) | 2015-06-03 | 2019-05-16 | Эквисис, Инк. | Ab externo location of intraocular shunt |
EP3313335B1 (en) * | 2015-06-26 | 2021-11-10 | Innfocus, Inc. | Glaucoma device |
US9655778B2 (en) | 2015-07-13 | 2017-05-23 | Thomas D. Tyler | Position responsive flow adjusting implantable device and method |
WO2017040853A1 (en) | 2015-09-02 | 2017-03-09 | Glaukos Corporation | Drug delivery implants with bi-directional delivery capacity |
US11564833B2 (en) | 2015-09-25 | 2023-01-31 | Glaukos Corporation | Punctal implants with controlled drug delivery features and methods of using same |
US10524958B2 (en) | 2015-09-30 | 2020-01-07 | Alievio, Inc. | Method and apparatus for reducing intraocular pressure |
KR20180088656A (en) | 2015-11-25 | 2018-08-06 | 탈론 메디컬, 엘엘씨 | Tissue coupling device, system, and method |
CN115120405A (en) | 2016-04-20 | 2022-09-30 | 多斯医学公司 | Delivery device for bioabsorbable ocular drugs |
AU2017274654A1 (en) | 2016-06-02 | 2018-12-20 | Aquesys, Inc. | Intraocular drug delivery |
US10596035B2 (en) | 2016-06-06 | 2020-03-24 | Ecole Polytechnique Federale De Lausanne (Epfl) | Apparatus for treating excess intraocular fluid |
US11116625B2 (en) | 2017-09-28 | 2021-09-14 | Glaukos Corporation | Apparatus and method for controlling placement of intraocular implants |
US11246753B2 (en) | 2017-11-08 | 2022-02-15 | Aquesys, Inc. | Manually adjustable intraocular flow regulation |
US10952898B2 (en) | 2018-03-09 | 2021-03-23 | Aquesys, Inc. | Intraocular shunt inserter |
US11135089B2 (en) | 2018-03-09 | 2021-10-05 | Aquesys, Inc. | Intraocular shunt inserter |
WO2020049508A1 (en) | 2018-09-06 | 2020-03-12 | Ecole Polytechnique Federale De Lausanne (Epfl) | Apparatus for treating excess intraocular fluid having an elastic membrane |
CN111759582A (en) * | 2019-04-02 | 2020-10-13 | 巨晰光纤股份有限公司 | Shunt bracket for drainage of eyeballs |
EP3973933A1 (en) | 2019-06-26 | 2022-03-30 | Imvalv S.A. | Glaucoma drain implant system with pressure sensor and valve, and external reading unit |
WO2021176332A1 (en) | 2020-03-06 | 2021-09-10 | Ecole Polytechnique De Lausanne (Epfl) | Apparatus for treating excess intraocular fluid having an elastic membrane |
US20210315737A1 (en) * | 2020-04-10 | 2021-10-14 | Jeffrey Whitsett | Anterior chamber maintainer (acm) |
JP6964912B1 (en) * | 2021-05-28 | 2021-11-10 | 株式会社中京メディカル | Eyeball mounting tube |
Family Cites Families (139)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US274447A (en) | 1883-03-20 | William-kentish | ||
US15192A (en) | 1856-06-24 | Tubular | ||
US733152A (en) | 1902-08-30 | 1903-07-07 | Murdoch Chisholm | Empyema drainage device. |
US1388172A (en) | 1920-03-18 | 1921-08-23 | Simon M Craddock | Veterinary surgical appliance |
US2431587A (en) | 1945-02-19 | 1947-11-25 | Charles F Schnee | Cannula button for surgical operations and method of use |
US2555076A (en) | 1947-11-17 | 1951-05-29 | Elijah R Crossley | Instrument for use in performing surgical eye operations |
US2867213A (en) | 1957-06-12 | 1959-01-06 | Jr Paul A Thomas | Flutter valve for drainage of the pleural cavity |
US3159161A (en) | 1962-11-14 | 1964-12-01 | Ness Richard Alton | Fistulizing canaliculus |
US3310051A (en) | 1963-12-10 | 1967-03-21 | Rudolf R Schulte | Surgical reservoir for implantation beneath the skin |
US3333588A (en) | 1964-07-06 | 1967-08-01 | Rudolf R Schulte | Brain ventricle cannula |
US3272204A (en) * | 1965-09-22 | 1966-09-13 | Ethicon Inc | Absorbable collagen prosthetic implant with non-absorbable reinforcing strands |
US3421509A (en) | 1965-12-17 | 1969-01-14 | John M Fiore | Urethral catheter |
US3530860A (en) | 1967-01-09 | 1970-09-29 | Ponce De Leon Ear | Method and apparatus for inserting a tube through the ear drum |
US3915172A (en) | 1970-05-27 | 1975-10-28 | Ceskoslovenska Akademie Ved | Capillary drain for glaucoma |
US3788327A (en) | 1971-03-30 | 1974-01-29 | H Donowitz | Surgical implant device |
US3884238A (en) | 1972-06-19 | 1975-05-20 | Malley Conor C O | Apparatus for intraocular surgery |
US3957035A (en) | 1972-09-08 | 1976-05-18 | Jean Chassaing | Ophthalmological device useful for eye surgery |
US3890976A (en) | 1972-10-26 | 1975-06-24 | Medical Products Corp | Catheter tip assembly |
US3913584A (en) | 1974-06-28 | 1975-10-21 | Xomox Corp | Combination myringotomy scalpel, aspirator and otological vent tube inserter |
US3938529A (en) | 1974-07-22 | 1976-02-17 | Gibbons Robert P | Indwelling ureteral catheter |
US4142526A (en) * | 1974-12-23 | 1979-03-06 | Alza Corporation | Osmotic releasing system with means for changing release therefrom |
US3976077A (en) | 1975-02-03 | 1976-08-24 | Kerfoot Jr Franklin W | Eye surgery device |
US4037604A (en) | 1976-01-05 | 1977-07-26 | Newkirk John B | Artifical biological drainage device |
US4175563A (en) | 1977-10-05 | 1979-11-27 | Arenberg Irving K | Biological drainage shunt |
US4290426A (en) * | 1978-05-04 | 1981-09-22 | Alza Corporation | Dispenser for dispensing beneficial agent |
US4299227A (en) | 1979-10-19 | 1981-11-10 | Lincoff Harvey A | Ophthalmological appliance |
US4808183A (en) | 1980-06-03 | 1989-02-28 | University Of Iowa Research Foundation | Voice button prosthesis and method for installing same |
US4402681A (en) | 1980-08-23 | 1983-09-06 | Haas Joseph S | Artificial implant valve for the regulation of intraocular pressure |
US4457757A (en) | 1981-07-20 | 1984-07-03 | Molteno Anthony C B | Device for draining aqueous humour |
US4474569A (en) | 1982-06-28 | 1984-10-02 | Denver Surgical Developments, Inc. | Antenatal shunt |
US4554918A (en) | 1982-07-28 | 1985-11-26 | White Thomas C | Ocular pressure relief device |
US4521210A (en) | 1982-12-27 | 1985-06-04 | Wong Vernon G | Eye implant for relieving glaucoma, and device and method for use therewith |
IT8352816V0 (en) | 1983-01-07 | 1983-01-07 | Ferrando Ugo Gardi Giovanni E | SURGICAL MEDICAL APPLICATION CATHETER |
HU187011B (en) | 1983-01-14 | 1985-10-28 | Orvosi Mueszer Sz | Trachea canula |
SU1191227A1 (en) | 1983-04-28 | 1985-11-15 | Всесоюзный Научно-Исследовательский И Проектный Институт Технологии Химического И Нефтяного Аппаратостроения | Line for manufacturing ribbed bimetallic pipes |
US4538611A (en) | 1983-06-13 | 1985-09-03 | Kelman Charles D | Surgical instrument and method of cutting a lens of an eye |
NL8302541A (en) | 1983-07-15 | 1985-02-01 | Philips Nv | METHOD FOR MANUFACTURING A SEMICONDUCTOR DEVICE, AND SEMICONDUCTOR DEVICE MADE ACCORDING TO THE METHOD |
US4587954A (en) | 1983-12-29 | 1986-05-13 | Habley Medical Technology Corporation | Elastomeric prosthetic sphincter |
US4563779A (en) | 1984-01-27 | 1986-01-14 | Kelman Charles D | Corneal implant and method of making the same |
US4578058A (en) | 1984-04-02 | 1986-03-25 | Grandon Stanley C | Intraocular catheter apparatus and method of use |
US4634418A (en) | 1984-04-06 | 1987-01-06 | Binder Perry S | Hydrogel seton |
US4787885A (en) | 1984-04-06 | 1988-11-29 | Binder Perry S | Hydrogel seton |
US4660546A (en) | 1984-11-07 | 1987-04-28 | Robert S. Herrick | Method for treating for deficiency of tears |
US4604087A (en) | 1985-02-26 | 1986-08-05 | Joseph Neil H | Aqueous humor drainage device |
EP0228185B1 (en) | 1985-11-27 | 1990-07-25 | Thomas C. White | Tissue-implantable fluid-dissipating device |
US4781675A (en) | 1985-11-27 | 1988-11-01 | White Thomas C | Infusion cannula |
US4692142A (en) | 1986-02-24 | 1987-09-08 | Dignam Bernard J | Sutureless infusion cannula for ophthalmic surgery |
US4792336A (en) * | 1986-03-03 | 1988-12-20 | American Cyanamid Company | Flat braided ligament or tendon implant device having texturized yarns |
NZ215409A (en) | 1986-03-07 | 1989-02-24 | Anthony Christopher Be Molteno | Implant for drainage of aqueous humour in glaucoma |
US4964850A (en) | 1986-05-07 | 1990-10-23 | Vincent Bouton | Method for treating trans-nasal sinus afflictions using a double t-shaped trans-nasal aerator |
US4826478A (en) | 1986-06-23 | 1989-05-02 | Stanley Schocket | Anterior chamber tube shunt to an encircling band, and related surgical procedure |
US4722724A (en) | 1986-06-23 | 1988-02-02 | Stanley Schocket | Anterior chamber tube shunt to an encircling band, and related surgical procedure |
US4909783A (en) | 1986-07-16 | 1990-03-20 | Morrison David P | Intra-ocular pressure apparatus |
US4751926A (en) | 1986-09-12 | 1988-06-21 | Dow Corning Wright Corporation | Instrument for subcutaneous insertion of an injection reservoir |
US4863457A (en) * | 1986-11-24 | 1989-09-05 | Lee David A | Drug delivery device |
US4886488A (en) | 1987-08-06 | 1989-12-12 | White Thomas C | Glaucoma drainage the lacrimal system and method |
US5139502A (en) | 1987-08-19 | 1992-08-18 | Atos Medical Ab | Drainage tube for sinus maxillaris, a means for its insertion and a means for making a hole for its positioning |
US4813941A (en) | 1987-09-03 | 1989-03-21 | Leslie Shea | Pneumothorax treatment device |
US4934363A (en) | 1987-12-15 | 1990-06-19 | Iolab Corporation | Lens insertion instrument |
US4888016A (en) | 1988-02-10 | 1989-12-19 | Langerman David W | "Spare parts" for use in ophthalmic surgical procedures |
US4936825A (en) | 1988-04-11 | 1990-06-26 | Ungerleider Bruce A | Method for reducing intraocular pressure caused by glaucoma |
US5098393A (en) | 1988-05-31 | 1992-03-24 | Kurt Amplatz | Medical introducer and valve assembly |
US4915684A (en) | 1988-06-21 | 1990-04-10 | Mackeen Donald L | Method and apparatus for modulating the flow of lacrimal fluid through a punctum and associated canaliculus |
US5071408A (en) | 1988-10-07 | 1991-12-10 | Ahmed Abdul Mateen | Medical valve |
IT1227176B (en) | 1988-10-11 | 1991-03-20 | Co Pharma Corp Srl | DEVICE FOR FIXING A CATHETER TO THE CRANIAL TECA FOR EXTERNAL LIQUOR DERIVATION |
US4959048A (en) | 1989-01-17 | 1990-09-25 | Helix Medical, Inc. | Lacrimal duct occluder |
US5000731A (en) | 1989-03-30 | 1991-03-19 | Tai-Ting Wong | Shunting device adopted in the intracranial shunting surgical operation for the treatment of hydrocephalus |
US5053040A (en) | 1989-11-09 | 1991-10-01 | Goldsmith Iii Manning M | Method of performing a myringotomy |
US4946436A (en) | 1989-11-17 | 1990-08-07 | Smith Stewart G | Pressure-relieving device and process for implanting |
US5167620A (en) | 1989-11-28 | 1992-12-01 | Alexandar Ureche | Eye surgery methods |
US5106367A (en) | 1989-11-28 | 1992-04-21 | Alexander Ureche | Eye surgery apparatus with vacuum surge suppressor |
US4968296A (en) | 1989-12-20 | 1990-11-06 | Robert Ritch | Transscleral drainage implant device for the treatment of glaucoma |
US5092837A (en) | 1989-12-20 | 1992-03-03 | Robert Ritch | Method for the treatment of glaucoma |
US5073163A (en) | 1990-01-29 | 1991-12-17 | Lippman Myron E | Apparatus for treating glaucoma |
US5171270A (en) | 1990-03-29 | 1992-12-15 | Herrick Robert S | Canalicular implant having a collapsible flared section and method |
US5041081A (en) | 1990-05-18 | 1991-08-20 | Odrich Ronald B | Ocular implant for controlling glaucoma |
US5127901A (en) | 1990-05-18 | 1992-07-07 | Odrich Ronald B | Implant with subconjunctival arch |
US5178604A (en) | 1990-05-31 | 1993-01-12 | Iovision, Inc. | Glaucoma implant |
US5476445A (en) | 1990-05-31 | 1995-12-19 | Iovision, Inc. | Glaucoma implant with a temporary flow restricting seal |
US5397300A (en) | 1990-05-31 | 1995-03-14 | Iovision, Inc. | Glaucoma implant |
US5098438A (en) | 1990-08-23 | 1992-03-24 | Siepser Steven B | Procedures for intraocular surgery |
CA2060635A1 (en) * | 1991-02-12 | 1992-08-13 | Keith D'alessio | Bioabsorbable medical implants |
US5454796A (en) | 1991-04-09 | 1995-10-03 | Hood Laboratories | Device and method for controlling intraocular fluid pressure |
US5242449A (en) | 1991-04-23 | 1993-09-07 | Allergan, Inc. | Ophthalmic instrument |
US5207660A (en) | 1991-04-26 | 1993-05-04 | Cornell Research Foundation, Inc. | Method for the delivery of compositions to the ocular tissues |
US5358492A (en) | 1991-05-02 | 1994-10-25 | Feibus Miriam H | Woven surgical drain and method of making |
US6007511A (en) | 1991-05-08 | 1999-12-28 | Prywes; Arnold S. | Shunt valve and therapeutic delivery system for treatment of glaucoma and methods and apparatus for its installation |
US5300020A (en) | 1991-05-31 | 1994-04-05 | Medflex Corporation | Surgically implantable device for glaucoma relief |
US5147370A (en) | 1991-06-12 | 1992-09-15 | Mcnamara Thomas O | Nitinol stent for hollow body conduits |
US5326345A (en) | 1991-08-14 | 1994-07-05 | Price Jr Francis W | Eye filtration prostheses |
US5171213A (en) | 1991-08-14 | 1992-12-15 | Price Jr Francis W | Technique for fistulization of the eye and an eye filtration prosthesis useful therefor |
US5360399A (en) | 1992-01-10 | 1994-11-01 | Robert Stegmann | Method and apparatus for maintaining the normal intraocular pressure |
AU681575B2 (en) | 1992-01-29 | 1997-09-04 | Stewart Gregory Smith | Method and apparatus for phaco-emulsification |
US5283063A (en) | 1992-01-31 | 1994-02-01 | Eagle Vision | Punctum plug method and apparatus |
US5190552A (en) | 1992-02-04 | 1993-03-02 | Kelman Charles D | Slotted tube injector for an intraocular lens |
US5217486A (en) * | 1992-02-18 | 1993-06-08 | Mitek Surgical Products, Inc. | Suture anchor and installation tool |
US5346464A (en) | 1992-03-10 | 1994-09-13 | Camras Carl B | Method and apparatus for reducing intraocular pressure |
US5221278A (en) | 1992-03-12 | 1993-06-22 | Alza Corporation | Osmotically driven delivery device with expandable orifice for pulsatile delivery effect |
US5380290A (en) | 1992-04-16 | 1995-01-10 | Pfizer Hospital Products Group, Inc. | Body access device |
US5322504A (en) | 1992-05-07 | 1994-06-21 | United States Surgical Corporation | Method and apparatus for tissue excision and removal by fluid jet |
WO1994007436A1 (en) | 1992-09-30 | 1994-04-14 | Vladimir Feingold | Intraocular lens insertion system |
US5370607A (en) | 1992-10-28 | 1994-12-06 | Annuit Coeptis, Inc. | Glaucoma implant device and method for implanting same |
EP0596314B1 (en) | 1992-11-06 | 1999-12-15 | GRIESHABER & CO. AG | Ophthalmological aspiration and irrigation device |
FR2700265B1 (en) | 1993-01-08 | 1995-03-31 | France Chirurgie Instr | Meatic plug for lacrimal pathology. |
US5338291A (en) | 1993-02-03 | 1994-08-16 | Pudenz-Schulte Medical Research Corporation | Glaucoma shunt and method for draining aqueous humor |
USD356867S (en) | 1993-03-10 | 1995-03-28 | Hood Laboratories | Device for controlling intraocular fluid pressure |
US5342370A (en) | 1993-03-19 | 1994-08-30 | University Of Miami | Method and apparatus for implanting an artifical meshwork in glaucoma surgery |
US5433714A (en) | 1993-04-06 | 1995-07-18 | Bloomberg; Leroy | Topical anesthesia method for eye surgery, and applicator therefor |
DE4313245C2 (en) | 1993-04-23 | 1997-03-27 | Geuder Hans Gmbh | Hollow needle for an ophthalmic surgical instrument |
IL109499A (en) | 1994-05-02 | 1998-01-04 | Univ Ramot | Implant device for draining excess intraocular fluid |
US5704907A (en) | 1994-07-22 | 1998-01-06 | Wound Healing Of Oklahoma | Method and apparatus for lowering the intraocular pressure of an eye |
US5520631A (en) | 1994-07-22 | 1996-05-28 | Wound Healing Of Oklahoma | Method and apparatus for lowering the intraocular pressure of an eye |
US6102045A (en) | 1994-07-22 | 2000-08-15 | Premier Laser Systems, Inc. | Method and apparatus for lowering the intraocular pressure of an eye |
US5522845A (en) | 1994-09-27 | 1996-06-04 | Mitek Surgical Products, Inc. | Bone anchor and bone anchor installation |
US5601094A (en) | 1994-11-22 | 1997-02-11 | Reiss; George R. | Ophthalmic shunt |
US5433701A (en) | 1994-12-21 | 1995-07-18 | Rubinstein; Mark H. | Apparatus for reducing ocular pressure |
US5558630A (en) | 1994-12-30 | 1996-09-24 | Fisher; Bret L. | Intrascleral implant and method for the regulation of intraocular pressure |
US5626558A (en) | 1995-05-05 | 1997-05-06 | Suson; John | Adjustable flow rate glaucoma shunt and method of using same |
IL113723A (en) | 1995-05-14 | 2002-11-10 | Optonol Ltd | Intraocular implant |
AU5857396A (en) | 1995-05-14 | 1996-11-29 | Optonol Ltd. | Intraocular implant, delivery device, and method of implanta tion |
US5968058A (en) | 1996-03-27 | 1999-10-19 | Optonol Ltd. | Device for and method of implanting an intraocular implant |
US5662600A (en) | 1995-09-29 | 1997-09-02 | Pudenz-Schulte Medical Research Corporation | Burr-hole flow control device |
US5741292A (en) | 1995-10-26 | 1998-04-21 | Eagle Vision | Punctum dilating and plug inserting instrument with push-button plug release |
US5709698A (en) | 1996-02-26 | 1998-01-20 | Linvatec Corporation | Irrigating/aspirating shaver blade assembly |
US5665101A (en) | 1996-04-01 | 1997-09-09 | Linvatec Corporation | Endoscopic or open lipectomy instrument |
US5865831A (en) | 1996-04-17 | 1999-02-02 | Premier Laser Systems, Inc. | Laser surgical procedures for treatment of glaucoma |
US5807240A (en) | 1996-09-24 | 1998-09-15 | Circon Corporation | Continuous flow endoscope with enlarged outflow channel |
US6007510A (en) | 1996-10-25 | 1999-12-28 | Anamed, Inc. | Implantable devices and methods for controlling the flow of fluids within the body |
FR2757068B1 (en) | 1996-12-13 | 1999-04-23 | Jussmann Alberto | SELF-FIXING DRAIN |
US5713844A (en) | 1997-01-10 | 1998-02-03 | Peyman; Gholam A. | Device and method for regulating intraocular pressure |
GB9700390D0 (en) | 1997-01-10 | 1997-02-26 | Biocompatibles Ltd | Device for use in the eye |
US5893837A (en) | 1997-02-28 | 1999-04-13 | Staar Surgical Company, Inc. | Glaucoma drain implanting device and method |
US6050970A (en) | 1997-05-08 | 2000-04-18 | Pharmacia & Upjohn Company | Method and apparatus for inserting a glaucoma implant in an anterior and posterior segment of the eye |
US6004302A (en) | 1997-08-28 | 1999-12-21 | Brierley; Lawrence A. | Cannula |
US6007578A (en) | 1997-10-08 | 1999-12-28 | Ras Holding Corp | Scleral prosthesis for treatment of presbyopia and other eye disorders |
US6203513B1 (en) | 1997-11-20 | 2001-03-20 | Optonol Ltd. | Flow regulating implant, method of manufacture, and delivery device |
US6168575B1 (en) | 1998-01-29 | 2001-01-02 | David Pyam Soltanpour | Method and apparatus for controlling intraocular pressure |
US6221078B1 (en) | 1999-06-25 | 2001-04-24 | Stephen S. Bylsma | Surgical implantation apparatus |
JP3292953B2 (en) | 1999-10-15 | 2002-06-17 | エヌイーシーインフロンティア株式会社 | Redundant transmission line device and redundant transmission line system |
-
1999
- 1999-06-02 US US09/324,694 patent/US6558342B1/en not_active Expired - Lifetime
-
2000
- 2000-06-02 JP JP2000620902A patent/JP4195203B2/en not_active Expired - Lifetime
- 2000-06-02 ES ES07004349.2T patent/ES2547355T3/en not_active Expired - Lifetime
- 2000-06-02 AU AU53151/00A patent/AU5315100A/en not_active Abandoned
- 2000-06-02 WO PCT/US2000/015200 patent/WO2000072788A1/en active IP Right Grant
- 2000-06-02 EP EP07004349.2A patent/EP1800635B1/en not_active Expired - Lifetime
- 2000-06-02 CN CN00811123A patent/CN1367673A/en active Pending
- 2000-06-02 ES ES00938062T patent/ES2282116T3/en not_active Expired - Lifetime
- 2000-06-02 DE DE60034123T patent/DE60034123T2/en not_active Expired - Lifetime
- 2000-06-02 EP EP00938062A patent/EP1187584B1/en not_active Expired - Lifetime
- 2000-06-02 CA CA002374314A patent/CA2374314A1/en not_active Abandoned
- 2000-06-02 AT AT00938062T patent/ATE357892T1/en not_active IP Right Cessation
- 2000-06-02 KR KR10-2001-7015556A patent/KR100482033B1/en active IP Right Grant
- 2000-06-02 IL IL14687000A patent/IL146870A0/en not_active IP Right Cessation
-
2001
- 2001-08-06 US US09/921,585 patent/US6726664B2/en not_active Expired - Lifetime
-
2002
- 2002-12-17 HK HK02109147.1A patent/HK1047534A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
EP1187584A1 (en) | 2002-03-20 |
US20030208163A1 (en) | 2003-11-06 |
WO2000072788A1 (en) | 2000-12-07 |
US6726664B2 (en) | 2004-04-27 |
EP1800635B1 (en) | 2015-08-19 |
US6558342B1 (en) | 2003-05-06 |
ES2282116T3 (en) | 2007-10-16 |
CN1367673A (en) | 2002-09-04 |
ES2547355T3 (en) | 2015-10-05 |
JP2003500163A (en) | 2003-01-07 |
JP4195203B2 (en) | 2008-12-10 |
EP1800635A3 (en) | 2009-08-19 |
AU5315100A (en) | 2000-12-18 |
HK1047534A1 (en) | 2003-02-28 |
EP1187584B1 (en) | 2007-03-28 |
ATE357892T1 (en) | 2007-04-15 |
DE60034123T2 (en) | 2007-12-06 |
KR20020023228A (en) | 2002-03-28 |
IL146870A0 (en) | 2002-08-14 |
EP1800635A2 (en) | 2007-06-27 |
KR100482033B1 (en) | 2005-04-13 |
DE60034123D1 (en) | 2007-05-10 |
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Legal Events
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EEER | Examination request | ||
FZDE | Discontinued |