US3788318A - Expandable cannular, especially for medical purposes - Google Patents

Expandable cannular, especially for medical purposes Download PDF

Info

Publication number
US3788318A
US3788318A US00261793A US3788318DA US3788318A US 3788318 A US3788318 A US 3788318A US 00261793 A US00261793 A US 00261793A US 3788318D A US3788318D A US 3788318DA US 3788318 A US3788318 A US 3788318A
Authority
US
United States
Prior art keywords
cannula
tubular portion
sheet
guide ring
cannula according
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.)
Expired - Lifetime
Application number
US00261793A
Inventor
A Dusseau
S Kim
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3788318A publication Critical patent/US3788318A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34Trocars; Puncturing needles
    • A61B17/3417Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
    • A61B17/3421Cannulas
    • A61B17/3439Cannulas with means for changing the inner diameter of the cannula, e.g. expandable
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00Catheters; Hollow probes
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/06Body-piercing guide needles or the like
    • A61M25/0662Guide tubes

Definitions

  • An expandable tube referred to herein as a cannula, is formed by arranging at least one sheet of thin flexi- 128/343 214 ble material to form a tube while providing teeth or the like on the mterengaglng surfaces to permit controlled expansion of the tube by adjusting the surfaces
  • the present invention relates to an expandable tube, or cannula, especially for medical purposes.
  • a cannula may be defined as an elongated tube formed of plastic or metal large enough so that at least a small needle can be passed therethrough.
  • a cannula is employed to provide access to a blood vessel or a body cavity to introduce fluid into the blood vessel or to withdraw fluid from a body cavity.
  • a cannula is provided to give access to a vein with a tube being introduced into the vein through the cannula to remain therein during the supply of fluid to the vein.
  • a cannula is introduced into a blood vessel and a wire is inserted through the cannula, whereupon the cannula is withdrawn and a larger cannula, or a catheter, is guided along the wire and introduced into the vessel.
  • cannula Due to the great many purposes to which a cannula can be put, a variety of sizes of cannula is provided so as to be able to meet each situation. The placing of cannula is often a difficult procedure requiring the cut down procedure and highly skilled personnel and many times resulting in great discomfort to the patient.
  • a primary objective of the present invention is the provision of a cannula which can be radially expanded from a small diameter size to a larger diameter size.
  • Another object of the invention is the provision of a cannula which can be radially expanded thereby permitting the formation of a relatively large access passage from a preliminary relatively small puncture or incision.
  • Another object of the present invention is the provision of a cannula which is expandable and which thereby eliminates the need for surgical procedure to search for a vein or artery of ample size to receive a large nonexpandable cannula.
  • Still another object of the present invention is the provision of an expansible cannula which is relatively easy to use thereby permitting an emergency situation to be met rapidly and efficiently.
  • a further object of this invention is to provide the larger cannula through which a large catheter, such as diagnostic angiographic catheter, cardiac catheterization catheter or an electrode of a temporary pace maker, can be introduced to desired level of blood vessel thereby eliminating the necessity of performing the Seldinger procedure.
  • either a single thin flexible sheet, or multiple sheets are formed to define a tubular configuration about a predetermined axis with portions of the sheet, or sheets, in overlapping face to face engagement.
  • the overlapped portions of the sheet, or sheets are provided with interengaging teeth, somewhat like saw teeth, which permit expansion of the cannula by movement of the aforementioned overlapping portions in one direction relative to each other while preventing movement thereof in the opposite direction.
  • the cannula may be formed of sheet metal, such as stainless steel, or it may advantageously be formed of plastic material.
  • One end of the cannula is adapted for introduction into the body and the other end is provided with a guide ring having a flange and with the guide ring cooperating with control elements for controlling the expansion of the cannula.
  • the cannula istubular and open at both ends and is thereby adapted for receiving a piercing instrument for making a preliminary puncture in the body to receive the end of the cannula.
  • the piercing instrument has an axial canal or bore for receiving a stylette which can be removed from the piercing instrument to indicate by blood flow that the piercing guide is in the proper location.
  • FIG. 1 is a side elevational view of a cannula according to the present invention in minimum diameter position.
  • FIG. 2 is a view like FIG. 1 but shows the cannula in maximum expanded position.
  • FIG. 3 is a plan sectional view indicated by line III- III on FIG. 1 and showing details of construction of the cannula.
  • FIG. 4 is a view like FIG. 3 but shows a modification.
  • FIG. 5 is a view like FIG. 3 but shows a still further modification.
  • FIG. 6' is a view like FIG. 5 but shows the cannula in contracted position.
  • FIG. 7 is a view like FIG. 3 showing another modification.
  • FIG. 8 is a side view of a still further modification.
  • FIG. 9 is a section on line IXIX of FIG. 8.
  • FIG. 10 is a fragmentary perspective view of a portion of FIG. 8.
  • the cannula shown in FIGS. 1 to 3 comprises an elongated tubular portion 10 open at both ends and having mounted on one end a guide ring 12 which is provided with slot means 14 through which extend one or more side bars, or finger piece means 16 which form the control means for controlling the expansion of the cannula.
  • Guide ring 12 is preferably provided with an upstanding flange 18.
  • the cannula when in collapsed position as shown in FIG. 1, is adapted for receiving a piercing instrument 20 introduced into the cannula from the guide ring end thereof and having a piercing point 22 projecting from the other end of the cannula.
  • the instrument When point 22 is introduced into the body, as for example, by piercing the skin and entering the vein or artery, the instrument will guide the tubular portion 10 of the cannula through the pierced aperture and into the artery or vein, whereupon the piercing instrument can be withdrawn and the cannula can then be expanded to the desired size.
  • FIG. 3 will show that tubular portion 10 is formed of two sheet elements 22 and 24 with each less than completely circular and which are coaxial with the axis 26 of tubular portion 10.
  • Each of the elements 22 and 24 is provided on the inside near one end with teeth 28 and on the outside near the other end with teeth 30.
  • the teeth 28 of each of the elements 22 and 24 cooperate with the teeth 30 on the other thereof to permit expanding of the cannula while preventing collapsing thereof so that in the event the cannula is subjected to external pressure when in use, it will not collapse.
  • the elements 22 and 24 are advantageously formed with a somewhat resilient plastic ma terial and could also comprise a metal, such as stainless steel, if so desired.
  • Each of the elements 22 and 24 is provided with a control post 32 extending radially therefrom and through a corresponding aperture 34 in guide ring 12. Further near the free outer end of each of the elements 22 and 24, there is provided the aforementioned side bar, or finger piece, 16 slidable in the respective slot 14 in guide ring 12.
  • an outer element 42 disposed inside a guide ring 40 is an outer element 42 forming less than a complete circle and therein is an inner element 44 also forming somewhat less than a complete circle with the axial regions of separation of the ends of the elements diametrically opposite each other.
  • Inner element 44 has external teeth 46 thereon and outer element 42 has internal teeth 44 thereon cooperating in the same manner as teeth 28 and 30 pertaining to the first described modification.
  • the free ends of the inner member are provided with respective finger pieces 48 which extend through circumferential slot means formed in the outer elements 42 and in guide ring 40 so that movement of finger pieces 48 away from each other will effect expansion of the cannula radially.
  • FIG. shows a modification similar to that of FIG. 4 and wherein there is disposed within guide ring 50 an inner toothed element 52 and an outer toothed element 54 with the elements cooperating in the same manner as described in connection with FIG. 4.
  • inner element 52 has a control post 56 thereon extending through an aperture 58in guide ring 50 while the free ends of outer element 54 are provided with the finger pieces 60 moveable along slots 62 in guide ring 50 for expanding the cannula.
  • FIG. 6 shows the FIG. 5 modification in contracted position.
  • FIG. 7 shows a modification in which a single sheetlike flexible element 70 is wound up in the form of a spiral with the interengaging faces of the spiral having teeth 72 somewhat like saw teeth and so inclined as to permit the interengaged surfaces of the wound up sheet to move over each other in the expanding direction of the cannula while preventing movement in the opposite direction.
  • the outer end of the cannula is surrounded by a guide ring 74 and the free outer end of element 70 is provided with a finger piece 76 extending radially through guide ring 74 and moveable circum ferentially thereof along slot 78.
  • the inner end of the wound up sheet is provided with a finger piece 80 extending radially through the guide ring and circumferentially adjustable thereof along slot 82.
  • Finger piece 80 also projects through a circumferential slot in the convolution of element 70 immediately radially outwardly therefrom to permit adjusting movements of finger piece 80.
  • control post 84 fixed to the element and extending radially therefrom through an aperture 86 provided in guide ring 74.
  • the cannula is adapted to expand from an initial starting diameter, which can be made quite small and is locked in each position of radial expansion.
  • the cannula is provided, at the end opposite the end which is introduced into the body, with a guide ring having elements thereon and flanged for manipulation of the cannula and flanged for receiving a connecting portion such as connector to I.V. tubing or connector to syringe and to guide a piercing instrument or the like therein.
  • FIGS. 8, 9 and 10 show a modification adaptable to any of the foregoing modifications illustrated.
  • the tubular portion 10 of the cannula which may be made up of one or more sheets of flexible material, has thereon, at at least the outermost edge of the sheet means, a stiffening rod 90 extending axially along the edge of the sheet means and advantageously connected at its upper end to the finger piece or side bar pertaining to the respective sheet means.
  • More than one of the side rods 90 could be employed wherever stiffening of the tubular portion of the cannula was desired and wherever it was desired to effect fine control over the adjustment of the cannula over the entire length thereof.
  • Side rod 90 can be of any cross sectional configuration and may be round as shown in FIG. 10 and is adapted for being imbedded in the respective sheet means 92 to which it pertains so that no forwardly facing edge is formed by the end of the side rod.
  • the side rod could, of course, be ribbon-like and it would be stiff in the circumferential direction of the cannula while remaining flexible in the lateral direction thereof.
  • a cannula for insertion into the body vascular system comprising an elongated tubular portion open at both ends having slidably received therein a removable piercing instrument having a body piercing point protruding from one end of said elongated tubular portion, said tubular portion comprising at least two sheet elements concave toward the axis of said tubular portion, said sheet elements having circumferential portions thereof in overlapping face to face engagement along substantially the entire longitudinal length of said tubular portion, and interengaging teeth formed on the opposed faces of said circumferential portions of said sheet elements and also extending along at least a portion of the longitudinal length of said tubular portion; said teeth being circumferentially inclined to permit relative radial movement of said circumferential portions of said sheet elements in a direction to expand said tubular portion while preventing relative movement of said circumferential portions in the opposite direction, and adjustable means including means connected to said sheet elements and operable to adjust said overlapping regions relatively in at least the direction to increase the diameter of the tubular portion.
  • each sheet element has teeth formed on the inside at a first circumferential portion at one end and on the outside at a second circumferential portion at the other end,
  • said elements being disposed with the said one end of each element overlapping the outside of the said other end of the other element.
  • a cannula according to claim 1 in which one said element is provided with teeth on the radially outer side and the other said element is provided with teeth on the radially inner side and the elements are disposed in concentric engagement with said one element inside said other element.
  • a cannula according to claim 1 in which said tubular portion comprises a single sheet element wound into a spiral form about the axis of said tubular portion and having the inside of the outer end and the outside of the inner end provided with interengaging teeth, said teeth being inclined to permit relative movement of said ends in a direction to expand said cannula while preventing relative movement thereof in the opposite direction.
  • a cannula according to claim 1 which includes a guide ring on said cannula at one end and said adjusting means comprises finger piece means connected to said tubular portion and adjustable circumferentially of said ring.
  • a cannula according to claim 1 which includes a guide ring at one end of said cannula surrounding said tubular portion, said adjusting means including finger piece means connected to said sheet means and projecting radially therefrom outwardly beyond said guide ring and adjustable circumferentially of said guide ring.
  • a cannula according to claim 6 which includes means anchoring at least one point along the circumference of said sheet means to said guide ring.
  • a cannula according to claim 6 which includes flange means at the guide ring end of said cannula.
  • a cannula according to claim 8 in which said flange means is attached to said guide ring.
  • a cannula according to claim 6 which includes rod means extending axially along said sheet means in a region thereof circumferentially near said finger piece means.
  • a cannula according to claim 11 in which said rod means is connected to said finger piece means whereby the control action afforded by said finger piece means is effective over the entire axial length of said sheet means.
  • a cannula according to claim 1 in which a circumferential portion of each said element is disposed inside the circumferential portion of the other said element, and means connected to at least the outer side edges of said sheet elements for adjusting said sheet elements relative to each other to vary the diameter of said tubular portion.

Abstract

An expandable tube, referred to herein as a cannula, is formed by arranging at least one sheet of thin flexible material to form a tube while providing teeth or the like on the interengaging surfaces to permit controlled expansion of the tube by adjusting the surfaces over one another.

Description

United States Patent 1 [111 3,788,318 Jan. 29, 1974 Kim et al.
[54] EXPANDABLE CANNULAR, ESPECIALLY 3,044,461 7/1962 Murdock 128/4 FOR MEDICAL PURPOSES 3,509,883 5/1970 2,566,499 9/ 1 951 [76] Inventors: Sung S00 Kim, 4724 Imperial Park 1 559 737 11/1925 Dr., Fort Wayne, Ind. 46815; 3,545,430 12/1970 Figar 128/2.05 V Andress Dusseau, R.R. No. 1, Geneva 46740 Primary ExaminerDa1ton L. Truluck [22] Filed: June 12, 1972 Attorney, Agent, or Firm-Albert L. Jeffers; Roger M. 21 Appl. No.: 261,793 Rcken [52] US. Cl 128/2l4.4, 128/343, 128/348 [57] ABSTRACT An expandable tube, referred to herein as a cannula, is formed by arranging at least one sheet of thin flexi- 128/343 214 ble material to form a tube while providing teeth or the like on the mterengaglng surfaces to permit controlled expansion of the tube by adjusting the surfaces [56] References Cited over one another UNITED STATES PATENTS 447,761 3/1891 Clough 128/ 17 14 Claims, 10 Drawing Figures EXPANDABLE CANNULAR, ESPECIALLY FOR MEDICAL PURPOSES The present invention relates to an expandable tube, or cannula, especially for medical purposes.
Cannula are often used for medical purposes. A cannula may be defined as an elongated tube formed of plastic or metal large enough so that at least a small needle can be passed therethrough. A cannula is employed to provide access to a blood vessel or a body cavity to introduce fluid into the blood vessel or to withdraw fluid from a body cavity. In one case, a cannula is provided to give access to a vein with a tube being introduced into the vein through the cannula to remain therein during the supply of fluid to the vein.
In another case, such as Seldinger procedure, a cannula is introduced into a blood vessel and a wire is inserted through the cannula, whereupon the cannula is withdrawn and a larger cannula, or a catheter, is guided along the wire and introduced into the vessel.
Due to the great many purposes to which a cannula can be put, a variety of sizes of cannula is provided so as to be able to meet each situation. The placing of cannula is often a difficult procedure requiring the cut down procedure and highly skilled personnel and many times resulting in great discomfort to the patient.
With the foregoing in mind, a primary objective of the present invention is the provision of a cannula which can be radially expanded from a small diameter size to a larger diameter size.
Another object of the invention is the provision of a cannula which can be radially expanded thereby permitting the formation of a relatively large access passage from a preliminary relatively small puncture or incision.
Another object of the present invention is the provision of a cannula which is expandable and which thereby eliminates the need for surgical procedure to search for a vein or artery of ample size to receive a large nonexpandable cannula.
Still another object of the present invention is the provision of an expansible cannula which is relatively easy to use thereby permitting an emergency situation to be met rapidly and efficiently.
A further object of this invention is to provide the larger cannula through which a large catheter, such as diagnostic angiographic catheter, cardiac catheterization catheter or an electrode of a temporary pace maker, can be introduced to desired level of blood vessel thereby eliminating the necessity of performing the Seldinger procedure. I
BRIEF SUMMARY OF THE INVENTION According to the present invention, either a single thin flexible sheet, or multiple sheets, are formed to define a tubular configuration about a predetermined axis with portions of the sheet, or sheets, in overlapping face to face engagement. The overlapped portions of the sheet, or sheets, are provided with interengaging teeth, somewhat like saw teeth, which permit expansion of the cannula by movement of the aforementioned overlapping portions in one direction relative to each other while preventing movement thereof in the opposite direction.
The cannula may be formed of sheet metal, such as stainless steel, or it may advantageously be formed of plastic material. One end of the cannula is adapted for introduction into the body and the other end is provided with a guide ring having a flange and with the guide ring cooperating with control elements for controlling the expansion of the cannula.
The cannula istubular and open at both ends and is thereby adapted for receiving a piercing instrument for making a preliminary puncture in the body to receive the end of the cannula. The piercing instrument has an axial canal or bore for receiving a stylette which can be removed from the piercing instrument to indicate by blood flow that the piercing guide is in the proper location.
The foregoing objects as well as still other objects and advantages of the present invention will become more apparent upon reference to the following detailed specification taken in conjunction with the accompanying drawings in which:
FIG. 1 is a side elevational view of a cannula according to the present invention in minimum diameter position.
FIG. 2 is a view like FIG. 1 but shows the cannula in maximum expanded position.
FIG. 3 is a plan sectional view indicated by line III- III on FIG. 1 and showing details of construction of the cannula.
FIG. 4 is a view like FIG. 3 but shows a modification.
FIG. 5 is a view like FIG. 3 but shows a still further modification.
FIG. 6'is a view like FIG. 5 but shows the cannula in contracted position.
FIG. 7 is a view like FIG. 3 showing another modification.
FIG. 8 is a side view of a still further modification.
FIG. 9 is a section on line IXIX of FIG. 8.
FIG. 10 is a fragmentary perspective view of a portion of FIG. 8.
DETAILED DESCRIPTION OF THE INVENTION Referring to the drawings somewhat more in detail, the cannula shown in FIGS. 1 to 3 comprises an elongated tubular portion 10 open at both ends and having mounted on one end a guide ring 12 which is provided with slot means 14 through which extend one or more side bars, or finger piece means 16 which form the control means for controlling the expansion of the cannula.
Guide ring 12 is preferably provided with an upstanding flange 18. The cannula, when in collapsed position as shown in FIG. 1, is adapted for receiving a piercing instrument 20 introduced into the cannula from the guide ring end thereof and having a piercing point 22 projecting from the other end of the cannula.
When point 22 is introduced into the body, as for example, by piercing the skin and entering the vein or artery, the instrument will guide the tubular portion 10 of the cannula through the pierced aperture and into the artery or vein, whereupon the piercing instrument can be withdrawn and the cannula can then be expanded to the desired size.
FIG. 3 will show that tubular portion 10 is formed of two sheet elements 22 and 24 with each less than completely circular and which are coaxial with the axis 26 of tubular portion 10. Each of the elements 22 and 24 is provided on the inside near one end with teeth 28 and on the outside near the other end with teeth 30. The teeth 28 of each of the elements 22 and 24 cooperate with the teeth 30 on the other thereof to permit expanding of the cannula while preventing collapsing thereof so that in the event the cannula is subjected to external pressure when in use, it will not collapse.
It will be seen that the elements 22 and 24 are advantageously formed with a somewhat resilient plastic ma terial and could also comprise a metal, such as stainless steel, if so desired.
Each of the elements 22 and 24 is provided with a control post 32 extending radially therefrom and through a corresponding aperture 34 in guide ring 12. Further near the free outer end of each of the elements 22 and 24, there is provided the aforementioned side bar, or finger piece, 16 slidable in the respective slot 14 in guide ring 12.
It will be evident that the finger pieces 16 can be moved along the respective slots 14 provided therefor and thereby effect expansion of the cannula radially and that the cannula will remain in any adjusted position thereof, even though subjected to considerable external pressure.
In the arrangement of FIG. 4, disposed inside a guide ring 40 is an outer element 42 forming less than a complete circle and therein is an inner element 44 also forming somewhat less than a complete circle with the axial regions of separation of the ends of the elements diametrically opposite each other. Inner element 44 has external teeth 46 thereon and outer element 42 has internal teeth 44 thereon cooperating in the same manner as teeth 28 and 30 pertaining to the first described modification.
The free ends of the inner member are provided with respective finger pieces 48 which extend through circumferential slot means formed in the outer elements 42 and in guide ring 40 so that movement of finger pieces 48 away from each other will effect expansion of the cannula radially.
FIG. shows a modification similar to that of FIG. 4 and wherein there is disposed within guide ring 50 an inner toothed element 52 and an outer toothed element 54 with the elements cooperating in the same manner as described in connection with FIG. 4. However, in FIG. 5, inner element 52 has a control post 56 thereon extending through an aperture 58in guide ring 50 while the free ends of outer element 54 are provided with the finger pieces 60 moveable along slots 62 in guide ring 50 for expanding the cannula.
FIG. 6 shows the FIG. 5 modification in contracted position.
FIG. 7 shows a modification in which a single sheetlike flexible element 70 is wound up in the form of a spiral with the interengaging faces of the spiral having teeth 72 somewhat like saw teeth and so inclined as to permit the interengaged surfaces of the wound up sheet to move over each other in the expanding direction of the cannula while preventing movement in the opposite direction. In the modification of FIG. 7 the outer end of the cannula is surrounded by a guide ring 74 and the free outer end of element 70 is provided with a finger piece 76 extending radially through guide ring 74 and moveable circum ferentially thereof along slot 78.
Similarly, the inner end of the wound up sheet is provided with a finger piece 80 extending radially through the guide ring and circumferentially adjustable thereof along slot 82. Finger piece 80 also projects through a circumferential slot in the convolution of element 70 immediately radially outwardly therefrom to permit adjusting movements of finger piece 80.
At some intermediate point along the wound up element 72 there is provided a control post 84 fixed to the element and extending radially therefrom through an aperture 86 provided in guide ring 74.
In each of the modifications illustrated and described, the cannula is adapted to expand from an initial starting diameter, which can be made quite small and is locked in each position of radial expansion.
The cannula is provided, at the end opposite the end which is introduced into the body, with a guide ring having elements thereon and flanged for manipulation of the cannula and flanged for receiving a connecting portion such as connector to I.V. tubing or connector to syringe and to guide a piercing instrument or the like therein.
FIGS. 8, 9 and 10 show a modification adaptable to any of the foregoing modifications illustrated. In FIG. 8, the tubular portion 10 of the cannula, which may be made up of one or more sheets of flexible material, has thereon, at at least the outermost edge of the sheet means, a stiffening rod 90 extending axially along the edge of the sheet means and advantageously connected at its upper end to the finger piece or side bar pertaining to the respective sheet means.
More than one of the side rods 90 could be employed wherever stiffening of the tubular portion of the cannula was desired and wherever it was desired to effect fine control over the adjustment of the cannula over the entire length thereof.
Side rod 90 can be of any cross sectional configuration and may be round as shown in FIG. 10 and is adapted for being imbedded in the respective sheet means 92 to which it pertains so that no forwardly facing edge is formed by the end of the side rod. The side rod could, of course, be ribbon-like and it would be stiff in the circumferential direction of the cannula while remaining flexible in the lateral direction thereof.
Modifications may be made within the purview of the appended claims.
What is claimed is:
1. A cannula for insertion into the body vascular system comprising an elongated tubular portion open at both ends having slidably received therein a removable piercing instrument having a body piercing point protruding from one end of said elongated tubular portion, said tubular portion comprising at least two sheet elements concave toward the axis of said tubular portion, said sheet elements having circumferential portions thereof in overlapping face to face engagement along substantially the entire longitudinal length of said tubular portion, and interengaging teeth formed on the opposed faces of said circumferential portions of said sheet elements and also extending along at least a portion of the longitudinal length of said tubular portion; said teeth being circumferentially inclined to permit relative radial movement of said circumferential portions of said sheet elements in a direction to expand said tubular portion while preventing relative movement of said circumferential portions in the opposite direction, and adjustable means including means connected to said sheet elements and operable to adjust said overlapping regions relatively in at least the direction to increase the diameter of the tubular portion.
2. A cannula according to claim 1 in which each sheet element has teeth formed on the inside at a first circumferential portion at one end and on the outside at a second circumferential portion at the other end,
said elements being disposed with the said one end of each element overlapping the outside of the said other end of the other element.
3. A cannula according to claim 1 in which one said element is provided with teeth on the radially outer side and the other said element is provided with teeth on the radially inner side and the elements are disposed in concentric engagement with said one element inside said other element.
4. A cannula according to claim 1 in which said tubular portion comprises a single sheet element wound into a spiral form about the axis of said tubular portion and having the inside of the outer end and the outside of the inner end provided with interengaging teeth, said teeth being inclined to permit relative movement of said ends in a direction to expand said cannula while preventing relative movement thereof in the opposite direction.
5. A cannula according to claim 1 which includes a guide ring on said cannula at one end and said adjusting means comprises finger piece means connected to said tubular portion and adjustable circumferentially of said ring.
6. A cannula according to claim 1 which includes a guide ring at one end of said cannula surrounding said tubular portion, said adjusting means including finger piece means connected to said sheet means and projecting radially therefrom outwardly beyond said guide ring and adjustable circumferentially of said guide ring.
7. A cannula according to claim 6 which includes means anchoring at least one point along the circumference of said sheet means to said guide ring.
8. A cannula according to claim 6 which includes flange means at the guide ring end of said cannula.
9. A cannula according to claim 8 in which said flange means is attached to said guide ring.
10. A cannula according to claim 6 in which said guide ring is circumferentially slotted for receiving said finger piece means.
11. A cannula according to claim 6 which includes rod means extending axially along said sheet means in a region thereof circumferentially near said finger piece means.
12. A cannula according to claim 11 in which said rod means is connected to said finger piece means whereby the control action afforded by said finger piece means is effective over the entire axial length of said sheet means.
13. A cannula according to claim 12 in which said sheet means is a resilient plastic material and said rod means is imbedded therein.
14. A cannula according to claim 1 in which a circumferential portion of each said element is disposed inside the circumferential portion of the other said element, and means connected to at least the outer side edges of said sheet elements for adjusting said sheet elements relative to each other to vary the diameter of said tubular portion.

Claims (14)

1. A cannula for insertion into the body vascular system comprising an elongated tubular portion open at both ends having slidably received therein a removable piercing instrument having a body piercing point protruding from one end of said elongated tubular portion, said tubular portion comprising at least two sheet elements concave toward the axis of said tubular portion, said sheet elements having circumferential portions thereof in overlapping face to face engagement along substantially the entire longitudinal length of said tubular portion, and interengaging teeth formed on the opposed faces of said circumferential portions of said sheet elements and also extending along at least a portion of the longitudinal length of said tubular portion; said teeth being circumferentially inclined to permit relative radial movement of said circumferential portions of said sheet elements in a direction to expand said tubular portion while preventing relative movement of said circumferential portions in the opposite direction, and adjustable means including means connected to said sheet elements and operable to adjust said overlapping regions relatively in at least the direction to increase the diameter of the tubular portion.
2. A cannula according to claim 1 in which each sheet element has teeth formed on the inside at a first circumferential portion at one end and on the outside at a second circumferential portion at the other end, said elements being disposed with the said one end of each element overlapping the outside of the said other end of the other element.
3. A cannula according to claim 1 in which one said element is provided with teeth on the radially outer side and the other said element is provided with teeth on the radially inner side and the elements are disposed in concentric engagement with said one element inside said other element.
4. A cannula according to claim 1 in which said tubular portion comprises a single sheet element wound into a spiral form about the axis of said tubular portion and having the inside of the outer end and the outside of the inner end provided with interengaging teeth, said teeth being inclined to permit relative movement of said ends in a direction to expand said cannula while preventing relative movement thereof in the opposite direction.
5. A cannula according to claim 1 which includes a guide ring on said cannula at one end and said adjusting means comprises finger piece means connected to said tubular portion and adjustable circumferentially of said ring.
6. A cannula according to claim 1 which includes a guide ring at one end of said cannula surrounding said tubular portion, said adjusting means including finger piece means connected to said sheet means and projecting radially therefrom outwardly beyond said guide ring and adjustable circumferentially of said guide ring.
7. A cannula according to claim 6 which includes means anchoring at least one point along the circumference of said sheet means to said guide ring.
8. A cannula according to claim 6 which includes flange means at the guide ring end of said cannula.
9. A cannula according to claim 8 in which said flange means is attached to said guide ring.
10. A cannula according to claim 6 in which said guide ring is circumferentially slotted for rEceiving said finger piece means.
11. A cannula according to claim 6 which includes rod means extending axially along said sheet means in a region thereof circumferentially near said finger piece means.
12. A cannula according to claim 11 in which said rod means is connected to said finger piece means whereby the control action afforded by said finger piece means is effective over the entire axial length of said sheet means.
13. A cannula according to claim 12 in which said sheet means is a resilient plastic material and said rod means is imbedded therein.
14. A cannula according to claim 1 in which a circumferential portion of each said element is disposed inside the circumferential portion of the other said element, and means connected to at least the outer side edges of said sheet elements for adjusting said sheet elements relative to each other to vary the diameter of said tubular portion.
US00261793A 1972-06-12 1972-06-12 Expandable cannular, especially for medical purposes Expired - Lifetime US3788318A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US26179372A 1972-06-12 1972-06-12

Publications (1)

Publication Number Publication Date
US3788318A true US3788318A (en) 1974-01-29

Family

ID=22994893

Family Applications (1)

Application Number Title Priority Date Filing Date
US00261793A Expired - Lifetime US3788318A (en) 1972-06-12 1972-06-12 Expandable cannular, especially for medical purposes

Country Status (1)

Country Link
US (1) US3788318A (en)

Cited By (160)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3877429A (en) * 1973-11-30 1975-04-15 David L Rasumoff Catheter placement device
US4411655A (en) * 1981-11-30 1983-10-25 Schreck David M Apparatus and method for percutaneous catheterization
US4451256A (en) * 1981-05-06 1984-05-29 Intermedicat Gmbh Catheter set
US4572186A (en) * 1983-12-07 1986-02-25 Cordis Corporation Vessel dilation
US4610671A (en) * 1985-03-28 1986-09-09 Luther Medical Products, Inc. Assembly of stylet and catheter
US4699611A (en) * 1985-04-19 1987-10-13 C. R. Bard, Inc. Biliary stent introducer
US4716901A (en) * 1984-09-27 1988-01-05 Pratt Burnerd International Limited Surgical appliance for forming an opening through the skin
US4759748A (en) * 1986-06-30 1988-07-26 Raychem Corporation Guiding catheter
US4899729A (en) * 1985-05-30 1990-02-13 Gill Steven S Expansible cannula
US4921479A (en) * 1987-10-02 1990-05-01 Joseph Grayzel Catheter sheath with longitudinal seam
US4964854A (en) * 1989-01-23 1990-10-23 Luther Medical Products, Inc. Intravascular catheter assembly incorporating needle tip shielding cap
US5015239A (en) * 1989-03-22 1991-05-14 Browne Kevin F Sheath introducer apparatus
US5125396A (en) * 1990-10-05 1992-06-30 Ray R Charles Surgical retractor
US5201756A (en) * 1990-06-20 1993-04-13 Danforth Biomedical, Inc. Radially-expandable tubular elements for use in the construction of medical devices
US5230705A (en) * 1992-03-13 1993-07-27 Wilk Peter J Method of intravenous catheterization device
US5246424A (en) * 1992-03-13 1993-09-21 Wilk Peter J Device and method for use in obtaining access to an internal body organ
US5295994A (en) * 1991-11-15 1994-03-22 Bonutti Peter M Active cannulas
US5320611A (en) * 1993-02-04 1994-06-14 Peter M. Bonutti Expandable cannula having longitudinal wire and method of use
US5356390A (en) * 1993-09-30 1994-10-18 Becton, Dickinson And Company Catheter introducer assembly
US5389080A (en) * 1990-07-26 1995-02-14 Yoon; Inbae Endoscopic portal for use in endoscopic procedures and methods therefor
US5389081A (en) * 1993-05-18 1995-02-14 United States Surgical Corporation Stabilizer for a valve assembly for introducing instruments into body cavities
US5395342A (en) * 1990-07-26 1995-03-07 Yoon; Inbae Endoscopic portal
US5417707A (en) * 1993-10-29 1995-05-23 Medtronic, Inc. Dilatation balloon protector with raised ribs
US5429609A (en) * 1990-07-26 1995-07-04 Yoon; Inbae Endoscopic portal for use in endoscopic procedures and methods therefor
US5478318A (en) * 1990-07-26 1995-12-26 Yoon; Inbae Multiluminal endoscopic portal
US5490859A (en) * 1992-11-13 1996-02-13 Scimed Life Systems, Inc. Expandable intravascular occlusion material removal devices and methods of use
US5501694A (en) * 1992-11-13 1996-03-26 Scimed Life Systems, Inc. Expandable intravascular occlusion material removal devices and methods of use
US5571169A (en) * 1993-06-07 1996-11-05 Endovascular Instruments, Inc. Anti-stenotic method and product for occluded and partially occluded arteries
DE19537118A1 (en) * 1995-10-06 1997-04-10 Paul Dipl Ing Esser Bougie for enlarging body channels
US5622188A (en) * 1989-08-18 1997-04-22 Endovascular Instruments, Inc. Method of restoring reduced or absent blood flow capacity in an artery
US5674240A (en) * 1993-02-04 1997-10-07 Peter M. Bonutti Expandable cannula
US5683370A (en) * 1996-06-06 1997-11-04 Luther Medical Products, Inc. Hard tip over-the-needle catheter and method of manufacturing the same
US5792157A (en) * 1992-11-13 1998-08-11 Scimed Life Systems, Inc. Expandable intravascular occlusion material removal devices and methods of use
US5827319A (en) * 1996-05-20 1998-10-27 Innerdyne, Inc. Radially expandable access system having disposable and reusable components
US5836868A (en) * 1992-11-13 1998-11-17 Scimed Life Systems, Inc. Expandable intravascular occlusion material removal devices and methods of use
US5882345A (en) * 1996-05-22 1999-03-16 Yoon; Inbae Expandable endoscopic portal
US5897567A (en) * 1993-04-29 1999-04-27 Scimed Life Systems, Inc. Expandable intravascular occlusion material removal devices and methods of use
US5961499A (en) * 1993-02-04 1999-10-05 Peter M. Bonutti Expandable cannula
US6056772A (en) * 1993-02-04 2000-05-02 Bonutti; Peter M. Method and apparatus for positioning a suture anchor
US6090072A (en) * 1992-10-15 2000-07-18 Scimed Life Systems, Inc. Expandable introducer sheath
US6245052B1 (en) 1998-07-08 2001-06-12 Innerdyne, Inc. Methods, systems, and kits for implanting articles
US6277136B1 (en) 1990-03-02 2001-08-21 General Surgical Innovations, Inc. Method for developing an anatomic space
US6338730B1 (en) 1993-02-04 2002-01-15 Peter M. Bonutti Method of using expandable cannula
US6358238B1 (en) 1999-09-02 2002-03-19 Scimed Life Systems, Inc. Expandable micro-catheter
US6358266B1 (en) 1990-03-02 2002-03-19 General Surgical Innovations, Inc. Active cannulas
US20030073998A1 (en) * 2000-08-01 2003-04-17 Endius Incorporated Method of securing vertebrae
US20030191371A1 (en) * 2002-04-05 2003-10-09 Smith Maurice M. Devices and methods for percutaneous tissue retraction and surgery
US6684886B1 (en) 2000-01-21 2004-02-03 Prospine, Inc. Intervertebral disc repair methods and apparatus
US6692462B2 (en) 1999-05-19 2004-02-17 Mackenzie Andrew J. System and method for establishing vascular access
US20040064147A1 (en) * 2002-09-30 2004-04-01 Struble Chester L. Introducer system having a reclosable split sheath for lead replacement
US20040148005A1 (en) * 2002-10-17 2004-07-29 Heuser Richard R. Stent with covering and differential dilation
US20040147877A1 (en) * 2003-01-27 2004-07-29 Heuser Richard R Catheter introducer system
WO2004067062A2 (en) * 2003-01-29 2004-08-12 Durect Corporation Expandable bore injection needle
US20040172041A1 (en) * 2002-11-22 2004-09-02 Gresham Richard D. Sheath introduction apparatus and method
US20040176763A1 (en) * 1996-03-22 2004-09-09 Foley Kevin T. Methods for percutaneous surgery
US20040176665A1 (en) * 2002-06-26 2004-09-09 Branch Charles L. Instruments and methods for minimally invasive tissue retraction and surgery
US20040199121A1 (en) * 2001-08-01 2004-10-07 Thomas Wenchell Apparatus and method for providing percutaneous access and medicament to a target surgical site
US20050065517A1 (en) * 2003-09-24 2005-03-24 Chin Kingsley Richard Methods and devices for improving percutaneous access in minimally invasive surgeries
US20050080443A1 (en) * 2003-08-26 2005-04-14 Medicinelodge, Inc. Bodily tissue dilation systems and methods
US20050203565A1 (en) * 2003-09-19 2005-09-15 Rethy Csaba L. Trocar insertion apparatus
US20050209627A1 (en) * 2004-03-18 2005-09-22 Kick George F Expandable medical access device
WO2005089433A2 (en) * 2004-03-18 2005-09-29 Onset Medical, Inc. Expandable medical access device
US20050234304A1 (en) * 2002-06-26 2005-10-20 Sdgi Holdings, Inc. Instruments and methods for minimally invasive tissue retraction and surgery
US20050245958A1 (en) * 1999-05-19 2005-11-03 Carlson John E System and method for establishing vascular access
US20060004401A1 (en) * 2004-06-30 2006-01-05 Abernathie Dennis L Elongateable surgical port and dilator
US20060015108A1 (en) * 1996-08-19 2006-01-19 Bonutti Peter M Tissue fixation device
US20060038946A1 (en) * 2003-03-31 2006-02-23 Sharp Kabushiki Kaisha Liquid crystal display device and method of manufacturing the same
US20060089646A1 (en) * 2004-10-26 2006-04-27 Bonutti Peter M Devices and methods for stabilizing tissue and implants
US20060241695A1 (en) 2000-03-13 2006-10-26 Bonutti Peter M Method of using ultrasonic vibration to secure body tissue with fastening element
US20070016134A1 (en) * 2003-04-28 2007-01-18 Yutaka Suzuki Catheter kit for burrow
US20070173878A1 (en) * 2006-01-25 2007-07-26 Heuser Richard R Catheter system for connecting adjacent blood vessels
US20070185567A1 (en) * 2006-01-25 2007-08-09 Heuser Richard R Catheter system with stent device for connecting adjacent blood vessels
US20070203515A1 (en) * 2006-01-25 2007-08-30 Heuser Richard R Catheter system for connecting adjacent blood vessels
US20070203572A1 (en) * 2006-01-25 2007-08-30 Heuser Richard R Catheter system with stent apparatus for connecting adjacent blood vessels
US20070233079A1 (en) * 2006-02-06 2007-10-04 Stryker Spine Rod contouring apparatus and method for percutaneous pedicle screw extension
US20070265563A1 (en) * 2006-05-11 2007-11-15 Heuser Richard R Device for treating chronic total occlusion
US20080039845A1 (en) * 2006-02-07 2008-02-14 Bonutti Peter M Methods and devices for intracorporeal bonding of implants with thermal energy
US20080065019A1 (en) * 2006-01-25 2008-03-13 Heuser Richard R Catheter system for connecting adjacent blood vessels
US20080154153A1 (en) * 2004-08-25 2008-06-26 Heuser Richard R Multiple-wire systems and methods for ablation of occlusions within blood vessels
US7402141B2 (en) 2003-08-27 2008-07-22 Heuser Richard R Catheter guidewire system using concentric wires
US20080177249A1 (en) * 2007-01-22 2008-07-24 Heuser Richard R Catheter introducer system
US20080183211A1 (en) * 2007-01-11 2008-07-31 Lanx, Llc Spinous process implants and associated methods
US20080195145A1 (en) * 2007-02-13 2008-08-14 Bonutti Peter M Tissue fixation system and method
US20080234813A1 (en) * 2007-03-20 2008-09-25 Heuser Richard R Percutaneous Interventional Cardiology System for Treating Valvular Disease
US20090093791A1 (en) * 1999-09-17 2009-04-09 Heuser Richard R Devices and methods for treating chronic total occlusion
US20090093850A1 (en) * 2007-10-05 2009-04-09 Tyco Healthcare Group Lp Expanding seal anchor for single incision surgery
US20090125045A1 (en) * 2004-08-25 2009-05-14 Heuser Richard R Systems and methods for ablation of occlusions within blood vessels
US20090209913A1 (en) * 2007-03-14 2009-08-20 Elenor S.R.L. Trocar for thoracic surgery
US20090306480A1 (en) * 2008-06-06 2009-12-10 Warsaw Orthopedic, Inc. Systems and methods for tissue retraction
US20100113885A1 (en) * 2008-10-30 2010-05-06 Warsaw Orthopedic, Inc. Retractor assemblies for surgery in a patient
US20100217090A1 (en) * 2009-02-26 2010-08-26 Heiges Bradley A Retractor and mounting pad
US20100217088A1 (en) * 2009-02-26 2010-08-26 Heiges Bradley A Surgical dilator, retractor and mounting pad
US20100228095A1 (en) * 2009-03-06 2010-09-09 Lanx, Inc. Surgical retractor
US20100256452A1 (en) * 2009-04-07 2010-10-07 Ferreira Danial P Surgical portal apparatus with expandable cannula
US7879009B1 (en) * 2010-01-29 2011-02-01 Warsaw Orthopedic, Inc. Variable opening delivery system for intervertebral disc therapies
US20110077680A1 (en) * 2008-01-28 2011-03-31 Heuser Richard R Large mouth snare device
US20110152788A1 (en) * 2009-12-17 2011-06-23 Tyco Healthcare Group Lp Access assembly with dual anchor and seal capabilities
US7985247B2 (en) 2000-08-01 2011-07-26 Zimmer Spine, Inc. Methods and apparatuses for treating the spine through an access device
US20110196208A1 (en) * 2009-03-06 2011-08-11 Lanx, Inc. Asymetrical surgical retractor
US8002798B2 (en) 2003-09-24 2011-08-23 Stryker Spine System and method for spinal implant placement
US20110237898A1 (en) * 2008-12-18 2011-09-29 Medicinelodge, Inc. Dba Imds Co-Innovation Lateral access system for the lumbar spine
US8100828B2 (en) 2002-11-23 2012-01-24 George Frey Distraction and retraction system for spinal surgery
US8109958B1 (en) 2006-06-01 2012-02-07 Neville Alleyne Method and apparatus for spinal osteoligamentous resection
US20120172668A1 (en) * 2009-09-22 2012-07-05 Doheny Eye Institute Adjustable cannula systems and devices
WO2012154845A1 (en) * 2011-05-10 2012-11-15 Applied Medical Resources Corporation Wound retractor
US8496657B2 (en) 2006-02-07 2013-07-30 P Tech, Llc. Methods for utilizing vibratory energy to weld, stake and/or remove implants
US8540746B2 (en) 1998-08-20 2013-09-24 Zimmer Spine, Inc. Cannula for receiving surgical instruments
US8636656B2 (en) 2011-08-16 2014-01-28 Warsaw Orthopedic, Inc. Retractor assemblies with blade drive mechanisms
US8728162B2 (en) 2010-04-15 2014-05-20 Osteomed, Llc Direct lateral spine system instruments, implants and associated methods
US8808329B2 (en) 1998-02-06 2014-08-19 Bonutti Skeletal Innovations Llc Apparatus and method for securing a portion of a body
US8814902B2 (en) 2000-05-03 2014-08-26 Bonutti Skeletal Innovations Llc Method of securing body tissue
US8845699B2 (en) 1999-08-09 2014-09-30 Bonutti Skeletal Innovations Llc Method of securing tissue
US8992579B1 (en) 2011-03-08 2015-03-31 Nuvasive, Inc. Lateral fixation constructs and related methods
US9055981B2 (en) 2004-10-25 2015-06-16 Lanx, Inc. Spinal implants and methods
US9060815B1 (en) 2012-03-08 2015-06-23 Nuvasive, Inc. Systems and methods for performing spine surgery
US9060767B2 (en) 2003-04-30 2015-06-23 P Tech, Llc Tissue fastener and methods for using same
US9089323B2 (en) 2005-02-22 2015-07-28 P Tech, Llc Device and method for securing body tissue
US9138222B2 (en) 2000-03-13 2015-09-22 P Tech, Llc Method and device for securing body tissue
US9149281B2 (en) 2002-03-20 2015-10-06 P Tech, Llc Robotic system for engaging a fastener with body tissue
US9173647B2 (en) 2004-10-26 2015-11-03 P Tech, Llc Tissue fixation system
US20150366583A1 (en) * 2014-06-19 2015-12-24 Kyphon Sarl Cannula and methods of use
US9265491B2 (en) * 2004-12-29 2016-02-23 U.S. Spine, Inc. Minimally-invasive portal methods for performing lumbar decompression, instrumented fusion/stabilization, and the like
US9271766B2 (en) 2004-10-26 2016-03-01 P Tech, Llc Devices and methods for stabilizing tissue and implants
US9408716B1 (en) 2013-12-06 2016-08-09 Stryker European Holdings I, Llc Percutaneous posterior spinal fusion implant construction and method
US9439642B2 (en) 2006-02-07 2016-09-13 P Tech, Llc Methods and devices for utilizing bondable materials
US9463012B2 (en) 2004-10-26 2016-10-11 P Tech, Llc Apparatus for guiding and positioning an implant
US9510875B2 (en) 2013-03-14 2016-12-06 Stryker European Holdings I, Llc Systems and methods for percutaneous spinal fusion
US9517089B1 (en) 2013-10-08 2016-12-13 Nuvasive, Inc. Bone anchor with offset rod connector
US9561024B2 (en) 2002-06-05 2017-02-07 Applied Medical Resources Corporation Wound retractor
WO2017040275A1 (en) 2015-08-28 2017-03-09 Bhdl Holdings, Llc Surgical dilator, retractor and mounting pad
US9649102B2 (en) 2005-10-14 2017-05-16 Applied Medical Resources Corporation Wound retractor with split hoops
US9675334B2 (en) 2009-02-26 2017-06-13 Bhdl Holdings, Llc Surgical dilator, retractor and mounting pad
US9724136B2 (en) 2007-01-11 2017-08-08 Zimmer Biomet Spine, Inc. Spinous process implants and associated methods
US9744050B1 (en) 2013-12-06 2017-08-29 Stryker European Holdings I, Llc Compression and distraction system for percutaneous posterior spinal fusion
US9743960B2 (en) 2007-01-11 2017-08-29 Zimmer Biomet Spine, Inc. Interspinous implants and methods
US9750496B2 (en) 2002-08-27 2017-09-05 P Tech, Llc System for securing a portion of a body
US9770238B2 (en) 2001-12-03 2017-09-26 P Tech, Llc Magnetic positioning apparatus
US9827020B2 (en) 2013-03-14 2017-11-28 Stryker European Holdings I, Llc Percutaneous spinal cross link system and method
US9848864B2 (en) 2014-05-27 2017-12-26 Kyphon SÀRL Adjustable cannula and methods of use
US20180021062A1 (en) * 2014-10-23 2018-01-25 Covidien Lp Methods and apparatus for controlling surgical instruments using a surgical port assembly
US9888916B2 (en) 2004-03-09 2018-02-13 P Tech, Llc Method and device for securing body tissue
US9949730B2 (en) 2014-11-25 2018-04-24 Applied Medical Resources Corporation Circumferential wound retraction with support and guidance structures
US9999542B2 (en) 2014-07-16 2018-06-19 Doheny Eye Institute Systems, methods, and devices for cannula insertion
US10010344B2 (en) * 2015-07-13 2018-07-03 Dennis L Steffen Self-dilating catheter introducer with obturator and method of use
US10034690B2 (en) 2014-12-09 2018-07-31 John A. Heflin Spine alignment system
US10058393B2 (en) 2015-10-21 2018-08-28 P Tech, Llc Systems and methods for navigation and visualization
US10076377B2 (en) 2013-01-05 2018-09-18 P Tech, Llc Fixation systems and methods
WO2018231830A1 (en) 2017-06-12 2018-12-20 Bhdl Holdings, Llc Surgical dilator, retractor and mounting pad
US10159579B1 (en) 2013-12-06 2018-12-25 Stryker European Holdings I, Llc Tubular instruments for percutaneous posterior spinal fusion systems and methods
US10172641B2 (en) 2014-08-15 2019-01-08 Applied Medical Resources Corporation Natural orifice surgery system
US10413287B2 (en) 2009-02-26 2019-09-17 Bhdl Holdings, Llc Surgical dilator, retractor and mounting pad
US10575840B2 (en) 2015-10-07 2020-03-03 Applied Medical Resources Corporation Wound retractor with multi-segment outer ring
US11166709B2 (en) 2016-08-23 2021-11-09 Stryker European Operations Holdings Llc Instrumentation and methods for the implantation of spinal implants
US11191532B2 (en) 2018-03-30 2021-12-07 Stryker European Operations Holdings Llc Lateral access retractor and core insertion
US11246638B2 (en) 2006-05-03 2022-02-15 P Tech, Llc Methods and devices for utilizing bondable materials
US11253296B2 (en) 2006-02-07 2022-02-22 P Tech, Llc Methods and devices for intracorporeal bonding of implants with thermal energy
US11278331B2 (en) 2006-02-07 2022-03-22 P Tech Llc Method and devices for intracorporeal bonding of implants with thermal energy
US11564674B2 (en) 2019-11-27 2023-01-31 K2M, Inc. Lateral access system and method of use
US11812923B2 (en) 2011-10-07 2023-11-14 Alan Villavicencio Spinal fixation device
US11832846B2 (en) * 2012-11-21 2023-12-05 P Tech, Llc Expandable access systems and methods

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US447761A (en) * 1891-03-10 Speculum
US1559737A (en) * 1922-06-28 1925-11-03 Bock Martin Catheter
US2566499A (en) * 1950-02-14 1951-09-04 Richter Bruno Expansile surgical needle
US3044461A (en) * 1960-01-21 1962-07-17 Murdock Barbara Procto-sigmoidoscope
US3509883A (en) * 1967-11-29 1970-05-05 Gen Electric Expanding cannula
US3545430A (en) * 1968-03-05 1970-12-08 Ceskoslovenska Akademie Ved Adjustable electrode arrangement for capacitance plethysmography

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US447761A (en) * 1891-03-10 Speculum
US1559737A (en) * 1922-06-28 1925-11-03 Bock Martin Catheter
US2566499A (en) * 1950-02-14 1951-09-04 Richter Bruno Expansile surgical needle
US3044461A (en) * 1960-01-21 1962-07-17 Murdock Barbara Procto-sigmoidoscope
US3509883A (en) * 1967-11-29 1970-05-05 Gen Electric Expanding cannula
US3545430A (en) * 1968-03-05 1970-12-08 Ceskoslovenska Akademie Ved Adjustable electrode arrangement for capacitance plethysmography

Cited By (360)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3877429A (en) * 1973-11-30 1975-04-15 David L Rasumoff Catheter placement device
US4451256A (en) * 1981-05-06 1984-05-29 Intermedicat Gmbh Catheter set
US4411655A (en) * 1981-11-30 1983-10-25 Schreck David M Apparatus and method for percutaneous catheterization
US4572186A (en) * 1983-12-07 1986-02-25 Cordis Corporation Vessel dilation
US4716901A (en) * 1984-09-27 1988-01-05 Pratt Burnerd International Limited Surgical appliance for forming an opening through the skin
US4610671A (en) * 1985-03-28 1986-09-09 Luther Medical Products, Inc. Assembly of stylet and catheter
US4699611A (en) * 1985-04-19 1987-10-13 C. R. Bard, Inc. Biliary stent introducer
US4899729A (en) * 1985-05-30 1990-02-13 Gill Steven S Expansible cannula
US4759748A (en) * 1986-06-30 1988-07-26 Raychem Corporation Guiding catheter
US4921479A (en) * 1987-10-02 1990-05-01 Joseph Grayzel Catheter sheath with longitudinal seam
US4964854A (en) * 1989-01-23 1990-10-23 Luther Medical Products, Inc. Intravascular catheter assembly incorporating needle tip shielding cap
US5015239A (en) * 1989-03-22 1991-05-14 Browne Kevin F Sheath introducer apparatus
US5865844A (en) * 1989-08-18 1999-02-02 Endovascular Instruments, Inc. Anti-stenotic method and product for occluded and partially occluded arteries
US5934284A (en) * 1989-08-18 1999-08-10 Endovascular Instruments, Inc Method for increasing blood flow in vessels
US5662701A (en) * 1989-08-18 1997-09-02 Endovascular Instruments, Inc. Anti-stenotic method and product for occluded and partially occluded arteries
US5622188A (en) * 1989-08-18 1997-04-22 Endovascular Instruments, Inc. Method of restoring reduced or absent blood flow capacity in an artery
US20040193181A1 (en) * 1990-03-02 2004-09-30 Bonutti Peter M. Active cannulas
US6358266B1 (en) 1990-03-02 2002-03-19 General Surgical Innovations, Inc. Active cannulas
US20030181939A1 (en) * 1990-03-02 2003-09-25 Bonutti Peter M. Active cannulas
US6277136B1 (en) 1990-03-02 2001-08-21 General Surgical Innovations, Inc. Method for developing an anatomic space
US7311719B2 (en) 1990-03-02 2007-12-25 General Surgical Innovations, Inc. Active cannulas
US5318588A (en) * 1990-06-20 1994-06-07 Danforth Biomedical, Inc. Radially-expandable tubular elements for use in the construction of medical devices
US5201756A (en) * 1990-06-20 1993-04-13 Danforth Biomedical, Inc. Radially-expandable tubular elements for use in the construction of medical devices
US5389080A (en) * 1990-07-26 1995-02-14 Yoon; Inbae Endoscopic portal for use in endoscopic procedures and methods therefor
US5395342A (en) * 1990-07-26 1995-03-07 Yoon; Inbae Endoscopic portal
US5429609A (en) * 1990-07-26 1995-07-04 Yoon; Inbae Endoscopic portal for use in endoscopic procedures and methods therefor
US5441486A (en) * 1990-07-26 1995-08-15 Yoon; Inbae Endoscopic portal for use in endoscopic procedures and methods therefor
US5478318A (en) * 1990-07-26 1995-12-26 Yoon; Inbae Multiluminal endoscopic portal
US6083203A (en) * 1990-07-26 2000-07-04 Yoon; Inbae Endoscopic portal
US5125396A (en) * 1990-10-05 1992-06-30 Ray R Charles Surgical retractor
US5295994A (en) * 1991-11-15 1994-03-22 Bonutti Peter M Active cannulas
US5230705A (en) * 1992-03-13 1993-07-27 Wilk Peter J Method of intravenous catheterization device
US5246424A (en) * 1992-03-13 1993-09-21 Wilk Peter J Device and method for use in obtaining access to an internal body organ
US6090072A (en) * 1992-10-15 2000-07-18 Scimed Life Systems, Inc. Expandable introducer sheath
US6183443B1 (en) 1992-10-15 2001-02-06 Scimed Life Systems, Inc. Expandable introducer sheath
US5490859A (en) * 1992-11-13 1996-02-13 Scimed Life Systems, Inc. Expandable intravascular occlusion material removal devices and methods of use
US5836868A (en) * 1992-11-13 1998-11-17 Scimed Life Systems, Inc. Expandable intravascular occlusion material removal devices and methods of use
US5792157A (en) * 1992-11-13 1998-08-11 Scimed Life Systems, Inc. Expandable intravascular occlusion material removal devices and methods of use
US5501694A (en) * 1992-11-13 1996-03-26 Scimed Life Systems, Inc. Expandable intravascular occlusion material removal devices and methods of use
US5573517A (en) * 1993-02-04 1996-11-12 Peter M. Bonutti Expandable cannulas
US6942684B2 (en) 1993-02-04 2005-09-13 Bonutti Ip, Llc Method and apparatus for positioning an anchor member
US6613038B2 (en) 1993-02-04 2003-09-02 Bonutti 2003 Trust-A Method of using expandable cannula
US5320611A (en) * 1993-02-04 1994-06-14 Peter M. Bonutti Expandable cannula having longitudinal wire and method of use
US6338730B1 (en) 1993-02-04 2002-01-15 Peter M. Bonutti Method of using expandable cannula
US6056772A (en) * 1993-02-04 2000-05-02 Bonutti; Peter M. Method and apparatus for positioning a suture anchor
US5674240A (en) * 1993-02-04 1997-10-07 Peter M. Bonutti Expandable cannula
US6364897B1 (en) 1993-02-04 2002-04-02 Peter M. Bonutti Method and apparatus for positioning a suture anchor
US5961499A (en) * 1993-02-04 1999-10-05 Peter M. Bonutti Expandable cannula
US20050240227A1 (en) * 1993-02-04 2005-10-27 Bonutti Peter M Method and apparatus for positioning an anchor member
US20080051734A1 (en) * 1993-02-04 2008-02-28 Bonutti Peter M Expandable cannula
US6814715B2 (en) 1993-02-04 2004-11-09 Bonutti 2003 Trust A Expandable cannula
US5897567A (en) * 1993-04-29 1999-04-27 Scimed Life Systems, Inc. Expandable intravascular occlusion material removal devices and methods of use
US5389081A (en) * 1993-05-18 1995-02-14 United States Surgical Corporation Stabilizer for a valve assembly for introducing instruments into body cavities
US5904146A (en) * 1993-06-07 1999-05-18 Endovascular Instruments, Inc. Anti-stenotic method and product for occluded and partially occluded arteries
US5836316A (en) * 1993-06-07 1998-11-17 Endovascular Instruments, Inc. Method of restoring reduced or absent blood flow capacity
US5782847A (en) * 1993-06-07 1998-07-21 Endovascular Instruments, Inc. Anti-stenotic method for occluded and partially occluded arteries
US5824057A (en) * 1993-06-07 1998-10-20 Endo-Vascular Instruments, Inc. Anti-stenotic method and product for occluded and partially occluded arteries
US6090135A (en) * 1993-06-07 2000-07-18 Endovascular Instruments, Inc. Anti-stenotic method and product for occluded and partially occluded arteries
US5842479A (en) * 1993-06-07 1998-12-01 Endovascular Instruments, Inc. Method of restoring reduced or absent blood flow capacity
US5843165A (en) * 1993-06-07 1998-12-01 Endovascular Instruments, Inc. Method for increasing blood flow in vessels
US5571169A (en) * 1993-06-07 1996-11-05 Endovascular Instruments, Inc. Anti-stenotic method and product for occluded and partially occluded arteries
US5873905A (en) * 1993-06-07 1999-02-23 Endovascular Instruments, Inc. Anti-stenotic method and product for occluded and partially occluded arteries
US20020004680A1 (en) * 1993-06-07 2002-01-10 Mark Plaia Anti-stenotic method and product for occluded and partially occluded arteries
US5356390A (en) * 1993-09-30 1994-10-18 Becton, Dickinson And Company Catheter introducer assembly
US5417707A (en) * 1993-10-29 1995-05-23 Medtronic, Inc. Dilatation balloon protector with raised ribs
DE19537118A1 (en) * 1995-10-06 1997-04-10 Paul Dipl Ing Esser Bougie for enlarging body channels
US20040176763A1 (en) * 1996-03-22 2004-09-09 Foley Kevin T. Methods for percutaneous surgery
US5827319A (en) * 1996-05-20 1998-10-27 Innerdyne, Inc. Radially expandable access system having disposable and reusable components
US6228068B1 (en) 1996-05-22 2001-05-08 Inbae Yoon Expandable endoscopic portal and methods therefor
US5882345A (en) * 1996-05-22 1999-03-16 Yoon; Inbae Expandable endoscopic portal
US5683370A (en) * 1996-06-06 1997-11-04 Luther Medical Products, Inc. Hard tip over-the-needle catheter and method of manufacturing the same
US5957893A (en) * 1996-06-06 1999-09-28 Becton Dickinson & Co. Hard tip over-the needle catheter and method of manufacturing the same
US5916208A (en) * 1996-06-06 1999-06-29 Luther Medical Products, Inc. Hard tip over-the-needle catheter and method of manufacturing the same
US5913848A (en) * 1996-06-06 1999-06-22 Luther Medical Products, Inc. Hard tip over-the-needle catheter and method of manufacturing the same
US20060015108A1 (en) * 1996-08-19 2006-01-19 Bonutti Peter M Tissue fixation device
US8845687B2 (en) 1996-08-19 2014-09-30 Bonutti Skeletal Innovations Llc Anchor for securing a suture
US8808329B2 (en) 1998-02-06 2014-08-19 Bonutti Skeletal Innovations Llc Apparatus and method for securing a portion of a body
US6245052B1 (en) 1998-07-08 2001-06-12 Innerdyne, Inc. Methods, systems, and kits for implanting articles
US6589225B2 (en) 1998-07-08 2003-07-08 Innerdyne, Inc. Methods, systems, and kits for implanting articles
US8540746B2 (en) 1998-08-20 2013-09-24 Zimmer Spine, Inc. Cannula for receiving surgical instruments
US20040093003A1 (en) * 1999-05-19 2004-05-13 Mackenzie Andrew J. System and method for establishing vascular access
US20050245958A1 (en) * 1999-05-19 2005-11-03 Carlson John E System and method for establishing vascular access
US20050245959A1 (en) * 1999-05-19 2005-11-03 Carlson John E System and method for establishing vascular access
US6692462B2 (en) 1999-05-19 2004-02-17 Mackenzie Andrew J. System and method for establishing vascular access
US20080243169A1 (en) * 1999-05-19 2008-10-02 Carlson John E System and method for establishing vascular access
US8845699B2 (en) 1999-08-09 2014-09-30 Bonutti Skeletal Innovations Llc Method of securing tissue
US6358238B1 (en) 1999-09-02 2002-03-19 Scimed Life Systems, Inc. Expandable micro-catheter
US20090093791A1 (en) * 1999-09-17 2009-04-09 Heuser Richard R Devices and methods for treating chronic total occlusion
US20040143165A1 (en) * 2000-01-21 2004-07-22 Neville Alleyne Intervertebral disc repair methods and apparatus
US6684886B1 (en) 2000-01-21 2004-02-03 Prospine, Inc. Intervertebral disc repair methods and apparatus
US20080108916A1 (en) * 2000-03-13 2008-05-08 Bonutti Peter M Method of using ultrasonic vibration to secure body tissue with fastening element
US8747439B2 (en) 2000-03-13 2014-06-10 P Tech, Llc Method of using ultrasonic vibration to secure body tissue with fastening element
US9884451B2 (en) 2000-03-13 2018-02-06 P Tech, Llc Method of using ultrasonic vibration to secure body tissue
US9986994B2 (en) 2000-03-13 2018-06-05 P Tech, Llc Method and device for securing body tissue
US20060241695A1 (en) 2000-03-13 2006-10-26 Bonutti Peter M Method of using ultrasonic vibration to secure body tissue with fastening element
US9138222B2 (en) 2000-03-13 2015-09-22 P Tech, Llc Method and device for securing body tissue
US9067362B2 (en) 2000-03-13 2015-06-30 P Tech, Llc Method of using ultrasonic vibration to secure body tissue with fastening element
US8814902B2 (en) 2000-05-03 2014-08-26 Bonutti Skeletal Innovations Llc Method of securing body tissue
US20050021030A1 (en) * 2000-08-01 2005-01-27 Endius Incorporated Method of securing vertebrae
US20040236317A1 (en) * 2000-08-01 2004-11-25 Davison Thomas W. Method of securing vertebrae
US8864785B2 (en) 2000-08-01 2014-10-21 Zimmer Spine, Inc. Method for securing vertebrae
US8277486B2 (en) 2000-08-01 2012-10-02 Zimmer Spine, Inc. System for performing a procedure at a spinal location
US9622735B2 (en) 2000-08-01 2017-04-18 Zimmer Spine, Inc. Method for securing vertebrae
US20030073998A1 (en) * 2000-08-01 2003-04-17 Endius Incorporated Method of securing vertebrae
US7850695B2 (en) 2000-08-01 2010-12-14 Zimmer Spine, Inc. Method of securing vertebrae
US7699877B2 (en) 2000-08-01 2010-04-20 Zimmer Spine, Inc. Method of securing vertebrae
US20040082960A1 (en) * 2000-08-01 2004-04-29 Davison Thomas W. Method of securing vertebrae
US8777997B2 (en) 2000-08-01 2014-07-15 Zimmer Spine, Inc. Method for securing vertebrae
US7722530B2 (en) 2000-08-01 2010-05-25 Zimmer Spine, Inc. Method of securing vertebrae
US7985247B2 (en) 2000-08-01 2011-07-26 Zimmer Spine, Inc. Methods and apparatuses for treating the spine through an access device
US7056321B2 (en) 2000-08-01 2006-06-06 Endius, Incorporated Method of securing vertebrae
US20050113833A1 (en) * 2000-08-01 2005-05-26 Davison Thomas W. Method of securing vertebrae
US9101353B2 (en) 2000-08-01 2015-08-11 Zimmer Spine, Inc. Method of securing vertebrae
US20040199121A1 (en) * 2001-08-01 2004-10-07 Thomas Wenchell Apparatus and method for providing percutaneous access and medicament to a target surgical site
US8591466B2 (en) 2001-08-01 2013-11-26 Covidien Lp Apparatus and method for providing percutaneous access and medicament to a target surgical site
US7449011B2 (en) 2001-08-01 2008-11-11 Tyco Healthcare Group Lp Apparatus and method for providing percutaneous access and medicament to a target surgical site
US9770238B2 (en) 2001-12-03 2017-09-26 P Tech, Llc Magnetic positioning apparatus
US9877793B2 (en) 2002-03-20 2018-01-30 P Tech, Llc Robotic arthroplasty system
US9629687B2 (en) 2002-03-20 2017-04-25 P Tech, Llc Robotic arthroplasty system
US9271779B2 (en) 2002-03-20 2016-03-01 P Tech, Llc Methods of using a robotic spine system
US9808318B2 (en) 2002-03-20 2017-11-07 P Tech, Llc Robotic arthroplasty system
US9271741B2 (en) 2002-03-20 2016-03-01 P Tech, Llc Robotic ultrasonic energy system
US10869728B2 (en) 2002-03-20 2020-12-22 P Tech, Llc Robotic surgery
US9192395B2 (en) 2002-03-20 2015-11-24 P Tech, Llc Robotic fastening system
US10265128B2 (en) 2002-03-20 2019-04-23 P Tech, Llc Methods of using a robotic spine system
US9149281B2 (en) 2002-03-20 2015-10-06 P Tech, Llc Robotic system for engaging a fastener with body tissue
US9486227B2 (en) 2002-03-20 2016-11-08 P Tech, Llc Robotic retractor system
US9585725B2 (en) 2002-03-20 2017-03-07 P Tech, Llc Robotic arthroplasty system
US9155544B2 (en) 2002-03-20 2015-10-13 P Tech, Llc Robotic systems and methods
US10932869B2 (en) 2002-03-20 2021-03-02 P Tech, Llc Robotic surgery
US10959791B2 (en) 2002-03-20 2021-03-30 P Tech, Llc Robotic surgery
US10368953B2 (en) 2002-03-20 2019-08-06 P Tech, Llc Robotic system for fastening layers of body tissue together and method thereof
USRE46403E1 (en) 2002-04-05 2017-05-16 Warsaw Orthopedic, Inc. Devices and methods for percutaneous tissue retraction and surgery
US20030191371A1 (en) * 2002-04-05 2003-10-09 Smith Maurice M. Devices and methods for percutaneous tissue retraction and surgery
US7988624B2 (en) 2002-04-05 2011-08-02 Warsaw Orthopedic, Inc. Devices and methods for percutaneous tissue retraction and surgery
US7981030B2 (en) 2002-04-05 2011-07-19 Warsaw Orthopedic, Inc. Devices and methods for percutaneous tissue retraction and surgery
US20070270655A1 (en) * 2002-04-05 2007-11-22 Smith Maurice M Devices and methods for percutaneous tissue retraction and surgery
US7261688B2 (en) 2002-04-05 2007-08-28 Warsaw Orthopedic, Inc. Devices and methods for percutaneous tissue retraction and surgery
USRE46148E1 (en) 2002-04-05 2016-09-20 Warsaw Orthopedic, Inc. Devices and methods for percutaneous tissue retraction and surgery
USRE46134E1 (en) 2002-04-05 2016-09-06 Warsaw Othopedic, Inc. Devices and methods for percutaneous tissue retraction and surgery
US9561024B2 (en) 2002-06-05 2017-02-07 Applied Medical Resources Corporation Wound retractor
US10507017B2 (en) 2002-06-05 2019-12-17 Applied Medical Resources Corporation Wound retractor
US7473222B2 (en) 2002-06-26 2009-01-06 Warsaw Orthopedic, Inc. Instruments and methods for minimally invasive tissue retraction and surgery
US20050192485A1 (en) * 2002-06-26 2005-09-01 Branch Charles L. Instruments and methods for minimally invasive tissue retraction and surgery
US7524285B2 (en) 2002-06-26 2009-04-28 Warsaw Orthopedic, Inc. Instruments and methods for minimally invasive tissue retraction and surgery
US7513869B2 (en) 2002-06-26 2009-04-07 Warsaw Orthopedic, Inc. Instruments and methods for minimally invasive tissue retraction and surgery
US20050234304A1 (en) * 2002-06-26 2005-10-20 Sdgi Holdings, Inc. Instruments and methods for minimally invasive tissue retraction and surgery
US20090156902A1 (en) * 2002-06-26 2009-06-18 Jonathan Dewey Instruments and methods for minimally invasive tissue retraction and surgery
US6945933B2 (en) 2002-06-26 2005-09-20 Sdgi Holdings, Inc. Instruments and methods for minimally invasive tissue retraction and surgery
US7976463B2 (en) 2002-06-26 2011-07-12 Warsaw Orthopedic, Inc. Instruments and methods for minimally invasive tissue retraction and surgery
US20040176665A1 (en) * 2002-06-26 2004-09-09 Branch Charles L. Instruments and methods for minimally invasive tissue retraction and surgery
US7981029B2 (en) 2002-06-26 2011-07-19 Warsaw Orthopedic, Inc. Instruments and methods for minimally invasive tissue retraction and surgery
US9750496B2 (en) 2002-08-27 2017-09-05 P Tech, Llc System for securing a portion of a body
US20040064147A1 (en) * 2002-09-30 2004-04-01 Struble Chester L. Introducer system having a reclosable split sheath for lead replacement
WO2004030739A1 (en) * 2002-09-30 2004-04-15 Medtronic, Inc. Introducer system having a reclosable split sheath for lead replacement
US20040148005A1 (en) * 2002-10-17 2004-07-29 Heuser Richard R. Stent with covering and differential dilation
US7300459B2 (en) 2002-10-17 2007-11-27 Heuser Richard R Stent with covering and differential dilation
US8753368B2 (en) 2002-11-22 2014-06-17 Covidien Lp Sheath introduction apparatus and method
US7896897B2 (en) 2002-11-22 2011-03-01 Tyco Healthcare Group Lp Sheath introduction apparatus and method
US20040172041A1 (en) * 2002-11-22 2004-09-02 Gresham Richard D. Sheath introduction apparatus and method
US20110144618A1 (en) * 2002-11-22 2011-06-16 Tyco Healthcare Group Lp Sheath introduction apparatus and method
US8100828B2 (en) 2002-11-23 2012-01-24 George Frey Distraction and retraction system for spinal surgery
US7166088B2 (en) * 2003-01-27 2007-01-23 Heuser Richard R Catheter introducer system
US7914492B2 (en) 2003-01-27 2011-03-29 Heuser Richard R Catheter introducer system
US20070161956A1 (en) * 2003-01-27 2007-07-12 Heuser Richard R Catheter introducer system
US20040147877A1 (en) * 2003-01-27 2004-07-29 Heuser Richard R Catheter introducer system
US20040193113A1 (en) * 2003-01-29 2004-09-30 Durect Corporation Expandable bore injection needle
WO2004067062A2 (en) * 2003-01-29 2004-08-12 Durect Corporation Expandable bore injection needle
WO2004067062A3 (en) * 2003-01-29 2006-05-04 Durect Corp Expandable bore injection needle
US20060038946A1 (en) * 2003-03-31 2006-02-23 Sharp Kabushiki Kaisha Liquid crystal display device and method of manufacturing the same
US20070016134A1 (en) * 2003-04-28 2007-01-18 Yutaka Suzuki Catheter kit for burrow
US7625361B2 (en) * 2003-04-28 2009-12-01 Sumitomo Bakelite Company Limited Catheter kit for burrow
US9962162B2 (en) 2003-04-30 2018-05-08 P Tech, Llc Tissue fastener and methods for using same
US9060767B2 (en) 2003-04-30 2015-06-23 P Tech, Llc Tissue fastener and methods for using same
US20050080443A1 (en) * 2003-08-26 2005-04-14 Medicinelodge, Inc. Bodily tissue dilation systems and methods
US7811303B2 (en) 2003-08-26 2010-10-12 Medicine Lodge Inc Bodily tissue dilation systems and methods
US7402141B2 (en) 2003-08-27 2008-07-22 Heuser Richard R Catheter guidewire system using concentric wires
US20050203565A1 (en) * 2003-09-19 2005-09-15 Rethy Csaba L. Trocar insertion apparatus
US7479150B2 (en) 2003-09-19 2009-01-20 Tyco Healthcare Group Lp Trocar insertion apparatus
US20090131871A1 (en) * 2003-09-19 2009-05-21 Csaba Rethy Trocar insertion apparatus
US9700357B2 (en) 2003-09-24 2017-07-11 Stryker European Holdings I, Llc Methods and devices for improving percutaneous access in minimally invasive surgeries
US8002798B2 (en) 2003-09-24 2011-08-23 Stryker Spine System and method for spinal implant placement
USRE45338E1 (en) 2003-09-24 2015-01-13 Stryker Spine System and method for spinal implant placement
USRE46432E1 (en) 2003-09-24 2017-06-13 Stryker European Holdings I, Llc System and method for spinal implant placement
USRE45676E1 (en) 2003-09-24 2015-09-29 Stryker Spine System and method for spinal implant placement
US7955355B2 (en) 2003-09-24 2011-06-07 Stryker Spine Methods and devices for improving percutaneous access in minimally invasive surgeries
US20110238120A1 (en) * 2003-09-24 2011-09-29 Stryker Spine Methods and devices for improving percutaneous access in minimally invasive surgeries
US20050065517A1 (en) * 2003-09-24 2005-03-24 Chin Kingsley Richard Methods and devices for improving percutaneous access in minimally invasive surgeries
US8685063B2 (en) 2003-09-24 2014-04-01 Stryker Spine Methods and devices for improving percutaneous access in minimally invasive surgeries
US10143502B2 (en) 2003-11-08 2018-12-04 Stryker European Holdings I, Llc Methods and devices for improving percutaneous access in minimally invasive surgeries
USRE47348E1 (en) 2003-11-08 2019-04-16 Stryker European Holdings I, Llc System and method for spinal implant placement
USRE49432E1 (en) 2003-11-08 2023-02-28 Stryker European Operations Holdings Llc System and method for spinal implant placement
USRE48376E1 (en) 2003-11-08 2021-01-05 Stryker European Operations Holdings Llc System and method for spinal implant placement
US10993747B2 (en) 2003-11-08 2021-05-04 Stryker European Operations Holdings Llc Methods and devices for improving percutaneous access in minimally invasive surgeries
US9888916B2 (en) 2004-03-09 2018-02-13 P Tech, Llc Method and device for securing body tissue
WO2005089433A2 (en) * 2004-03-18 2005-09-29 Onset Medical, Inc. Expandable medical access device
US7699864B2 (en) * 2004-03-18 2010-04-20 Onset Medical Corporation Expandable medical access device
US20050222576A1 (en) * 2004-03-18 2005-10-06 Kick George F Expandable medical access device
WO2005089433A3 (en) * 2004-03-18 2009-04-02 Onset Medical Inc Expandable medical access device
US20050209627A1 (en) * 2004-03-18 2005-09-22 Kick George F Expandable medical access device
US20060004401A1 (en) * 2004-06-30 2006-01-05 Abernathie Dennis L Elongateable surgical port and dilator
US7909843B2 (en) 2004-06-30 2011-03-22 Thompson Surgical Instruments, Inc. Elongateable surgical port and dilator
US20090125045A1 (en) * 2004-08-25 2009-05-14 Heuser Richard R Systems and methods for ablation of occlusions within blood vessels
US8545418B2 (en) 2004-08-25 2013-10-01 Richard R. Heuser Systems and methods for ablation of occlusions within blood vessels
US20080154153A1 (en) * 2004-08-25 2008-06-26 Heuser Richard R Multiple-wire systems and methods for ablation of occlusions within blood vessels
US9055981B2 (en) 2004-10-25 2015-06-16 Lanx, Inc. Spinal implants and methods
US9999449B2 (en) 2004-10-26 2018-06-19 P Tech, Llc Devices and methods for stabilizing tissue and implants
US11013542B2 (en) 2004-10-26 2021-05-25 P Tech, Llc Tissue fixation system and method
US9814453B2 (en) 2004-10-26 2017-11-14 P Tech, Llc Deformable fastener system
US11457958B2 (en) 2004-10-26 2022-10-04 P Tech, Llc Devices and methods for stabilizing tissue and implants
US20060089646A1 (en) * 2004-10-26 2006-04-27 Bonutti Peter M Devices and methods for stabilizing tissue and implants
US9980761B2 (en) 2004-10-26 2018-05-29 P Tech, Llc Tissue fixation system and method
US9579129B2 (en) 2004-10-26 2017-02-28 P Tech, Llc Devices and methods for stabilizing tissue and implants
US9545268B2 (en) 2004-10-26 2017-01-17 P Tech, Llc Devices and methods for stabilizing tissue and implants
US9463012B2 (en) 2004-10-26 2016-10-11 P Tech, Llc Apparatus for guiding and positioning an implant
US9867706B2 (en) 2004-10-26 2018-01-16 P Tech, Llc Tissue fastening system
US10813764B2 (en) 2004-10-26 2020-10-27 P Tech, Llc Expandable introducer system and methods
US10238378B2 (en) 2004-10-26 2019-03-26 P Tech, Llc Tissue fixation system and method
US9271766B2 (en) 2004-10-26 2016-03-01 P Tech, Llc Devices and methods for stabilizing tissue and implants
US9173647B2 (en) 2004-10-26 2015-11-03 P Tech, Llc Tissue fixation system
US9226828B2 (en) 2004-10-26 2016-01-05 P Tech, Llc Devices and methods for stabilizing tissue and implants
US9265491B2 (en) * 2004-12-29 2016-02-23 U.S. Spine, Inc. Minimally-invasive portal methods for performing lumbar decompression, instrumented fusion/stabilization, and the like
US9089323B2 (en) 2005-02-22 2015-07-28 P Tech, Llc Device and method for securing body tissue
US9980717B2 (en) 2005-02-22 2018-05-29 P Tech, Llc Device and method for securing body tissue
US10376259B2 (en) 2005-10-05 2019-08-13 P Tech, Llc Deformable fastener system
US10441269B1 (en) 2005-10-05 2019-10-15 P Tech, Llc Deformable fastener system
US11219446B2 (en) 2005-10-05 2022-01-11 P Tech, Llc Deformable fastener system
US9649102B2 (en) 2005-10-14 2017-05-16 Applied Medical Resources Corporation Wound retractor with split hoops
US9770271B2 (en) 2005-10-25 2017-09-26 Zimmer Biomet Spine, Inc. Spinal implants and methods
US20070185567A1 (en) * 2006-01-25 2007-08-09 Heuser Richard R Catheter system with stent device for connecting adjacent blood vessels
US20080065019A1 (en) * 2006-01-25 2008-03-13 Heuser Richard R Catheter system for connecting adjacent blood vessels
US20070203572A1 (en) * 2006-01-25 2007-08-30 Heuser Richard R Catheter system with stent apparatus for connecting adjacent blood vessels
US20070203515A1 (en) * 2006-01-25 2007-08-30 Heuser Richard R Catheter system for connecting adjacent blood vessels
US8062321B2 (en) 2006-01-25 2011-11-22 Pq Bypass, Inc. Catheter system for connecting adjacent blood vessels
US20070173878A1 (en) * 2006-01-25 2007-07-26 Heuser Richard R Catheter system for connecting adjacent blood vessels
US7374567B2 (en) 2006-01-25 2008-05-20 Heuser Richard R Catheter system for connecting adjacent blood vessels
US8894655B2 (en) 2006-02-06 2014-11-25 Stryker Spine Rod contouring apparatus and method for percutaneous pedicle screw extension
US9119684B2 (en) 2006-02-06 2015-09-01 Stryker Spine Rod contouring method for percutaneous pedicle screw extension
US9247977B2 (en) 2006-02-06 2016-02-02 Stryker European Holdings I, Llc Rod contouring apparatus for percutaneous pedicle screw extension
US10070936B2 (en) 2006-02-06 2018-09-11 Stryker European Holdings I, Llc Rod contouring apparatus for percutaneous pedicle screw extension
US8979851B2 (en) 2006-02-06 2015-03-17 Stryker Spine Rod contouring apparatus for percutaneous pedicle screw extension
US20070233079A1 (en) * 2006-02-06 2007-10-04 Stryker Spine Rod contouring apparatus and method for percutaneous pedicle screw extension
US10765488B2 (en) 2006-02-06 2020-09-08 Stryker European Holdings I, Llc Rod contouring apparatus for percutaneous pedicle screw extension
US9655685B2 (en) 2006-02-06 2017-05-23 Stryker European Holdings I, Llc Rod contouring apparatus for percutaneous pedicle screw extension
US11129645B2 (en) 2006-02-07 2021-09-28 P Tech, Llc Methods of securing a fastener
US11278331B2 (en) 2006-02-07 2022-03-22 P Tech Llc Method and devices for intracorporeal bonding of implants with thermal energy
US9439642B2 (en) 2006-02-07 2016-09-13 P Tech, Llc Methods and devices for utilizing bondable materials
US20080039845A1 (en) * 2006-02-07 2008-02-14 Bonutti Peter M Methods and devices for intracorporeal bonding of implants with thermal energy
US9173650B2 (en) 2006-02-07 2015-11-03 P Tech, Llc Methods and devices for trauma welding
US9421005B2 (en) 2006-02-07 2016-08-23 P Tech, Llc Methods and devices for intracorporeal bonding of implants with thermal energy
US11134995B2 (en) 2006-02-07 2021-10-05 P Tech, Llc Method and devices for intracorporeal bonding of implants with thermal energy
US8496657B2 (en) 2006-02-07 2013-07-30 P Tech, Llc. Methods for utilizing vibratory energy to weld, stake and/or remove implants
US10368924B2 (en) 2006-02-07 2019-08-06 P Tech, Llc Methods and devices for trauma welding
US9743963B2 (en) 2006-02-07 2017-08-29 P Tech, Llc Methods and devices for trauma welding
US11253296B2 (en) 2006-02-07 2022-02-22 P Tech, Llc Methods and devices for intracorporeal bonding of implants with thermal energy
US9610073B2 (en) 2006-02-07 2017-04-04 P Tech, Llc Methods and devices for intracorporeal bonding of implants with thermal energy
US11246638B2 (en) 2006-05-03 2022-02-15 P Tech, Llc Methods and devices for utilizing bondable materials
US20070265563A1 (en) * 2006-05-11 2007-11-15 Heuser Richard R Device for treating chronic total occlusion
US8109958B1 (en) 2006-06-01 2012-02-07 Neville Alleyne Method and apparatus for spinal osteoligamentous resection
US9724136B2 (en) 2007-01-11 2017-08-08 Zimmer Biomet Spine, Inc. Spinous process implants and associated methods
US20080183211A1 (en) * 2007-01-11 2008-07-31 Lanx, Llc Spinous process implants and associated methods
US9743960B2 (en) 2007-01-11 2017-08-29 Zimmer Biomet Spine, Inc. Interspinous implants and methods
US9861400B2 (en) 2007-01-11 2018-01-09 Zimmer Biomet Spine, Inc. Spinous process implants and associated methods
US20080177249A1 (en) * 2007-01-22 2008-07-24 Heuser Richard R Catheter introducer system
US10517584B1 (en) 2007-02-13 2019-12-31 P Tech, Llc Tissue fixation system and method
US20080195145A1 (en) * 2007-02-13 2008-08-14 Bonutti Peter M Tissue fixation system and method
US8617185B2 (en) 2007-02-13 2013-12-31 P Tech, Llc. Fixation device
US9402668B2 (en) 2007-02-13 2016-08-02 P Tech, Llc Tissue fixation system and method
US10390817B2 (en) 2007-02-13 2019-08-27 P Tech, Llc Tissue fixation system and method
US11801044B2 (en) 2007-02-13 2023-10-31 P Tech, Llc Tissue fixation system and method
US20090209913A1 (en) * 2007-03-14 2009-08-20 Elenor S.R.L. Trocar for thoracic surgery
US20080234813A1 (en) * 2007-03-20 2008-09-25 Heuser Richard R Percutaneous Interventional Cardiology System for Treating Valvular Disease
US20110197900A1 (en) * 2007-03-20 2011-08-18 Heuser Richard R Percutaneous interventional cardiology system for treating valvular disease
US8795326B2 (en) 2007-10-05 2014-08-05 Covidien Lp Expanding seal anchor for single incision surgery
US9474518B2 (en) 2007-10-05 2016-10-25 Covidien Lp Expanding seal anchor for single incision surgery
US20090093850A1 (en) * 2007-10-05 2009-04-09 Tyco Healthcare Group Lp Expanding seal anchor for single incision surgery
US20110077680A1 (en) * 2008-01-28 2011-03-31 Heuser Richard R Large mouth snare device
US8968192B2 (en) 2008-06-06 2015-03-03 Warsaw Orthopedic, Inc. Systems and methods for tissue retraction
US20090306480A1 (en) * 2008-06-06 2009-12-10 Warsaw Orthopedic, Inc. Systems and methods for tissue retraction
US20100113885A1 (en) * 2008-10-30 2010-05-06 Warsaw Orthopedic, Inc. Retractor assemblies for surgery in a patient
US8226554B2 (en) 2008-10-30 2012-07-24 Warsaw Orthopedic, Inc. Retractor assemblies for surgery in a patient
US10687797B2 (en) 2008-12-18 2020-06-23 Howmedica Osteonics Corp. Lateral access system for the lumbar spine
US11925342B2 (en) 2008-12-18 2024-03-12 Howmedica Osteonics Corp. Lateral access system for the lumbar spine
US8992558B2 (en) 2008-12-18 2015-03-31 Osteomed, Llc Lateral access system for the lumbar spine
US20110237898A1 (en) * 2008-12-18 2011-09-29 Medicinelodge, Inc. Dba Imds Co-Innovation Lateral access system for the lumbar spine
US20100217090A1 (en) * 2009-02-26 2010-08-26 Heiges Bradley A Retractor and mounting pad
US9675334B2 (en) 2009-02-26 2017-06-13 Bhdl Holdings, Llc Surgical dilator, retractor and mounting pad
US10413287B2 (en) 2009-02-26 2019-09-17 Bhdl Holdings, Llc Surgical dilator, retractor and mounting pad
US20100217088A1 (en) * 2009-02-26 2010-08-26 Heiges Bradley A Surgical dilator, retractor and mounting pad
US11272912B2 (en) 2009-02-26 2022-03-15 Curiteva, Inc. Surgical dilator, retractor and mounting pad
WO2010099413A2 (en) 2009-02-26 2010-09-02 Bhdl Holdings, Llc Surgical dilator, retractor and mounting pad
WO2010099413A3 (en) * 2009-02-26 2010-10-21 Bhdl Holdings, Llc Surgical dilator, retractor and mounting pad
US8480704B2 (en) 2009-02-26 2013-07-09 Bhdl Holdings, Llc Surgical dilator, retractor and mounting pad
US9585648B2 (en) 2009-02-26 2017-03-07 Bhdl Holdings, Llc Surgical dilator, retractor and mounting pad
US8870760B2 (en) 2009-02-26 2014-10-28 Bhdl Holdings, Llc Surgical dilator, retractor and mounting pad
US20100228095A1 (en) * 2009-03-06 2010-09-09 Lanx, Inc. Surgical retractor
US20110196208A1 (en) * 2009-03-06 2011-08-11 Lanx, Inc. Asymetrical surgical retractor
US8876710B2 (en) 2009-04-07 2014-11-04 Covidien Lp Surgical portal apparatus with expandable cannula
US20100256452A1 (en) * 2009-04-07 2010-10-07 Ferreira Danial P Surgical portal apparatus with expandable cannula
US9198797B2 (en) * 2009-09-22 2015-12-01 Doheny Eye Institute Adjustable cannula systems and devices
US20120172668A1 (en) * 2009-09-22 2012-07-05 Doheny Eye Institute Adjustable cannula systems and devices
US10076359B2 (en) 2009-09-22 2018-09-18 Doheny Eye Institute Adjustable cannula systems and devices
US20110152788A1 (en) * 2009-12-17 2011-06-23 Tyco Healthcare Group Lp Access assembly with dual anchor and seal capabilities
US8926508B2 (en) 2009-12-17 2015-01-06 Covidien Lp Access assembly with dual anchor and seal capabilities
US9642647B2 (en) * 2009-12-17 2017-05-09 Covidien Lp Access assembly with dual anchor and seal capabilities
US9364257B2 (en) 2009-12-17 2016-06-14 Covidien Lp Access assembly with dual anchor and seal capabilities
US20160256193A1 (en) * 2009-12-17 2016-09-08 Covidien Lp Access assembly with dual anchor and seal capabilities
US7879009B1 (en) * 2010-01-29 2011-02-01 Warsaw Orthopedic, Inc. Variable opening delivery system for intervertebral disc therapies
US8728162B2 (en) 2010-04-15 2014-05-20 Osteomed, Llc Direct lateral spine system instruments, implants and associated methods
US8992579B1 (en) 2011-03-08 2015-03-31 Nuvasive, Inc. Lateral fixation constructs and related methods
US9307975B2 (en) 2011-05-10 2016-04-12 Applied Medical Resources Corporation Wound retractor
US9241697B2 (en) 2011-05-10 2016-01-26 Applied Medical Resources Corporation Wound retractor
EP3075324A1 (en) * 2011-05-10 2016-10-05 Applied Medical Resources Corporation Wound retractor
US8758236B2 (en) 2011-05-10 2014-06-24 Applied Medical Resources Corporation Wound retractor
WO2012154845A1 (en) * 2011-05-10 2012-11-15 Applied Medical Resources Corporation Wound retractor
US8636656B2 (en) 2011-08-16 2014-01-28 Warsaw Orthopedic, Inc. Retractor assemblies with blade drive mechanisms
US11812923B2 (en) 2011-10-07 2023-11-14 Alan Villavicencio Spinal fixation device
US9060815B1 (en) 2012-03-08 2015-06-23 Nuvasive, Inc. Systems and methods for performing spine surgery
US9579131B1 (en) 2012-03-08 2017-02-28 Nuvasive, Inc. Systems and methods for performing spine surgery
US11832846B2 (en) * 2012-11-21 2023-12-05 P Tech, Llc Expandable access systems and methods
US10076377B2 (en) 2013-01-05 2018-09-18 P Tech, Llc Fixation systems and methods
US11779377B2 (en) 2013-03-14 2023-10-10 Stryker European Operations Holdings Llc Systems and methods for percutaneous spinal fusion
US10568669B2 (en) 2013-03-14 2020-02-25 Stryker European Holdings I, Llc Systems and methods for percutaneous spinal fusion
US9510875B2 (en) 2013-03-14 2016-12-06 Stryker European Holdings I, Llc Systems and methods for percutaneous spinal fusion
US10912590B2 (en) 2013-03-14 2021-02-09 Stryker European Operations Holdings Llc Percutaneous spinal cross link system and method
US9827020B2 (en) 2013-03-14 2017-11-28 Stryker European Holdings I, Llc Percutaneous spinal cross link system and method
US9517089B1 (en) 2013-10-08 2016-12-13 Nuvasive, Inc. Bone anchor with offset rod connector
US10159579B1 (en) 2013-12-06 2018-12-25 Stryker European Holdings I, Llc Tubular instruments for percutaneous posterior spinal fusion systems and methods
US9408716B1 (en) 2013-12-06 2016-08-09 Stryker European Holdings I, Llc Percutaneous posterior spinal fusion implant construction and method
US9744050B1 (en) 2013-12-06 2017-08-29 Stryker European Holdings I, Llc Compression and distraction system for percutaneous posterior spinal fusion
US10080561B2 (en) 2014-05-27 2018-09-25 Medtronic Holding Company Sárl Adjustable cannula and methods of use
US9848864B2 (en) 2014-05-27 2017-12-26 Kyphon SÀRL Adjustable cannula and methods of use
US20150366583A1 (en) * 2014-06-19 2015-12-24 Kyphon Sarl Cannula and methods of use
US9826967B2 (en) * 2014-06-19 2017-11-28 Kyphon SÀRL Cannula and methods of use
US9999542B2 (en) 2014-07-16 2018-06-19 Doheny Eye Institute Systems, methods, and devices for cannula insertion
US11583316B2 (en) 2014-08-15 2023-02-21 Applied Medical Resources Corporation Natural orifice surgery system
US10952768B2 (en) 2014-08-15 2021-03-23 Applied Medical Resources Corporation Natural orifice surgery system
US10172641B2 (en) 2014-08-15 2019-01-08 Applied Medical Resources Corporation Natural orifice surgery system
US20180021062A1 (en) * 2014-10-23 2018-01-25 Covidien Lp Methods and apparatus for controlling surgical instruments using a surgical port assembly
US10925636B2 (en) 2014-10-23 2021-02-23 Covidien Lp Methods and apparatus for controlling surgical instruments using a surgical port assembly
US10251672B2 (en) * 2014-10-23 2019-04-09 Covidien Lp Methods and apparatus for controlling surgical instruments using a surgical port assembly
US11806045B2 (en) 2014-10-23 2023-11-07 Covidien Lp Methods and apparatus for controlling surgical instruments using a surgical port assembly
US9949730B2 (en) 2014-11-25 2018-04-24 Applied Medical Resources Corporation Circumferential wound retraction with support and guidance structures
US10034690B2 (en) 2014-12-09 2018-07-31 John A. Heflin Spine alignment system
US11419637B2 (en) 2014-12-09 2022-08-23 John A. Heflin Spine alignment system
US10736668B2 (en) 2014-12-09 2020-08-11 John A. Heflin Spine alignment system
US10010344B2 (en) * 2015-07-13 2018-07-03 Dennis L Steffen Self-dilating catheter introducer with obturator and method of use
WO2017040275A1 (en) 2015-08-28 2017-03-09 Bhdl Holdings, Llc Surgical dilator, retractor and mounting pad
US11602338B2 (en) 2015-10-07 2023-03-14 Applied Medical Resources Corporation Wound retractor with multi-segment outer ring
US10575840B2 (en) 2015-10-07 2020-03-03 Applied Medical Resources Corporation Wound retractor with multi-segment outer ring
US10058393B2 (en) 2015-10-21 2018-08-28 P Tech, Llc Systems and methods for navigation and visualization
US11684430B2 (en) 2015-10-21 2023-06-27 P Tech, Llc Systems and methods for navigation and visualization
US11744651B2 (en) 2015-10-21 2023-09-05 P Tech, Llc Systems and methods for navigation and visualization
US10765484B2 (en) 2015-10-21 2020-09-08 P Tech, Llc Systems and methods for navigation and visualization
US11317974B2 (en) 2015-10-21 2022-05-03 P Tech, Llc Systems and methods for navigation and visualization
US11166709B2 (en) 2016-08-23 2021-11-09 Stryker European Operations Holdings Llc Instrumentation and methods for the implantation of spinal implants
WO2018231830A1 (en) 2017-06-12 2018-12-20 Bhdl Holdings, Llc Surgical dilator, retractor and mounting pad
US11911016B2 (en) 2018-03-30 2024-02-27 Stryker European Operations Holdings Llc Lateral access retractor and core insertion
US11191532B2 (en) 2018-03-30 2021-12-07 Stryker European Operations Holdings Llc Lateral access retractor and core insertion
US11564674B2 (en) 2019-11-27 2023-01-31 K2M, Inc. Lateral access system and method of use

Similar Documents

Publication Publication Date Title
US3788318A (en) Expandable cannular, especially for medical purposes
US5256146A (en) Vascular catheterization system with catheter anchoring feature
US7048729B2 (en) Catheter and method of fluid removal from a body cavity
US6045734A (en) Process of making a catheter
US4553545A (en) Device for application in blood vessels or other difficultly accessible locations and its use
US4619644A (en) Clinical catheterization technique and apparatus for performing same
US3598118A (en) Method of introducing an intravenous catheter into the vascular system
US5015239A (en) Sheath introducer apparatus
US4643711A (en) Two lumen hemodialysis catheter
US4931037A (en) In-dwelling ureteral stent and injection stent assembly, and method of using same
US4194504A (en) Winged catheter placement assembly
EP3641677B1 (en) Fenestration devices and systems
US5207644A (en) Device with implantable infusion chamber and a catheter extending therefrom
US4033331A (en) Cardiac catheter and method of using same
US4813925A (en) Spiral ureteral stent
EP0441863B1 (en) External guide wire
US5542936A (en) Sheath for introducing catheter
US4388074A (en) Winged catheter placement assembly
US4723942A (en) Clinical catheterization technique and apparatus for performing same
US4300553A (en) Winged catheter placement assembly
US4897077A (en) Method of inserting an IAB device into the body
US20130158483A1 (en) Dialysis needle system
US10850084B1 (en) Arteriovenous graft and method of providing dialysis
US11504504B2 (en) Systems and methods for expanding a catheter
CN107596498B (en) Spiral curled diameter-adjustable transfusion needle