WO1999058066A1 - Device and method for evacuating refuse from tissues of the body - Google Patents
Device and method for evacuating refuse from tissues of the body Download PDFInfo
- Publication number
- WO1999058066A1 WO1999058066A1 PCT/IL1999/000253 IL9900253W WO9958066A1 WO 1999058066 A1 WO1999058066 A1 WO 1999058066A1 IL 9900253 W IL9900253 W IL 9900253W WO 9958066 A1 WO9958066 A1 WO 9958066A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- suction
- knife
- sheath
- cutting
- pathalogic
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/1604—Chisels; Rongeurs; Punches; Stamps
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/1604—Chisels; Rongeurs; Punches; Stamps
- A61B17/1606—Chisels; Rongeurs; Punches; Stamps of forceps type, i.e. having two jaw elements moving relative to each other
- A61B17/1608—Chisels; Rongeurs; Punches; Stamps of forceps type, i.e. having two jaw elements moving relative to each other the two jaw elements being linked to two elongated shaft elements moving longitudinally relative to each other
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/320016—Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes
- A61B17/32002—Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes with continuously rotating, oscillating or reciprocating cutting instruments
Definitions
- the present invention relates to aspirating devices. Particularly, the invention relates to a method for the production of such devices for use in surgery.
- suction devices are often used. These are effective for non-viscous fluids such as non-clotted blood. However, the effectiveness is diminished when more viscous fluids are involved, such as contents of cysts, thick secretions, blood clots, viscid forms of pus and other hard pathologic materials. Suction activity is insufficient for the evacuation of such solid and semi-solid types of refuse, rather direct mechanical intervention is needed.
- US patents 5,275,609 and 5,290,303 describe devices for removing target objects from a body passageway.
- the devices employ a rotating spiral woven coil as a mechanical fragmenting agent, and the evacuation of the fragments of the target object is carried out by suction force.
- ELSA Endoscopic Liquidiser and Surgical Aspirator
- ELSA can liquify solid pathologic tissues by employing a rotating knife in the form of a drill or a propeller as a mechanical fragmenting agent and evacuation of tissue fragments with aspiration (suction) force.
- An object of the present invention is to provide an improved device for the evacuation of refuse consisting of solid and semi-solid material from organs of a body, the refuse having different levels of viscosity and fluidity.
- a device for evacuating pathalogic material from body cavities and organs includes a sheath defining a suction route internally; a means of providing suction connected to the suction route; a rotor internally disposed with the sheath; a suction outlet continuous with the suction route and connectable to the means for providing suction, and at least one cutting knife, connected to the rotor, for cutting the pathalogical material, the pathalogical material being removed via the suction outlet.
- the device further includes a ribbed cutting cage disposed around the at least one cutting knife.
- the knife is located outside of the sheath. At least a part of the sheath is flexible and/or disposable.
- the knife may be loop shaped.
- the knife comprises two concave blades radially disposed in the direction of the suction outlet.
- the device further includes means for incising the pathalogical material.
- the cutting means further includes correspondingly configured articulating jaws.
- the method includes:
- the method further includes the step of the at least one cutting knife pushing the cut pathalogic material away from the body cavities and organs. Furthermore in accordance with a preferred embodiment of the invention
- the step of applying a cutting action is performed manually.
- the method further includes the step of:
- the method also includes a second step of: applying suction following the step of grinding.
- FIG. 1A is a sectional elevational illustration of a suction device (or aspirator), constructed and operated in accordance with a preferred embodiment of the invention
- FIG. 1 B is an illustration of spacers used with the suction device of Fig. 1A;
- Figs. 1C-1E are detailed elevational views of the blade arrangement of the aspirator of Fig. 1A;
- Fig. 2A-C are isometric, side and front elevations of the cage-like stable knife for covering the end of the aspirator device of Fig. 1A;
- Fig. 3 is an illustration of an aspirator device constructed and operated in accordance with a further preferred embodiment of the invention.
- Fig. 4 is a detailed illustration of the knife of Fig. 3;
- Fig. 5A is an illustration of an aspirator device constructed and operated in accordance with a further preferred embodiment of the invention.
- Fig. 5B is a detailed illustration of a knife used with the aspirator of Fig. 5A;
- Fig. 5C is an illustration of an alternative arrangement of knives used with aspirator of Fig. 5A;
- Fig. 6 is an illustration of an aspirator device constructed and operated in accordance with a further preferred embodiment of the invention
- Fig. 7 is an illustration of an aspirator device constructed and operated in accordance with a further preferred embodiment of the invention.
- Figs. 8A-8D are illustrations of an aspirator device constructed and operated in accordance with a further preferred embodiment of the invention.
- FIG. 1A illustrates a suction device 10
- Suction device 10 comprises a cylindrical sheath 14 connected to a suction outlet 22.
- a rotor 12 is inserted within cylindrical sheath 14.
- the rotor 12 is connected to a rotatable half-loop type knife 13, the blades of
- a knife head 40 composed of a cage-like
- the sheath 14 connects the suction outlet
- pneumatic, functionally connected to the rotor 12 is disposed at the one end of the device, opposite to the knife 13.
- the rotor 12 is centered within the sheath 14
- a radial spacer 20 located proximally to the external orifice 11
- a second spacer 18 which is located proximal to suction outlet 22 (distal from orifice 11).
- Fig. 1B is a cross-sectional view of the spacer 18 within sheath 14.
- Spacers 18, 20 ensure that the rotor 12 is equi-distant from the circumference of the sheath 14 while allowing free passage (void 15) for the material being
- the knife 13 is half-loop-shaped, having two blades, 19 and 21 each having a sharp cutting edge in a forward direction of movement.
- the cutting direction for each blade is on the opposite edge of each blade 19 and 21.
- the cutting edge 23 of blade 21 is positioned in the direction of rotation..
- Arrow 27 indicates the direction of the rotation around rotor 12.
- a medical team uses the device of the invention to disrupt, dislocate and evacuate chunks of refuse.
- the apparatus of. the invention uses both the mechanical power and the suction power to evacuate refuse.
- the refuse is located very close to healthy tissue or to tissue which should be left untouched. Therefore, using a stable knife head 40 (or cage) to protect from physical harm to healthy tissue and tissue which is to be left unharmed is very important.
- the stable knife head 40 is shown in Figs. 2A, 2B and 2C which are an isometric, sectional and front view of knife head 40 respectively and which are now referred to herein.
- the knife head 40 is shown to comprise a cage made up of ribs 41 and has a base ring 45 which is screwed to the sheath 14, thus covering the orifice 11 of the aspirator (not shown). This allows for material to reach the vicinity of the half-loop-type knife 13, without placing body tissues at risk due to knife action.
- This cage has a dual function in that it protects the tissue from potential knife injuries on the one hand and on the other hand it dissects the refuse by way of the cutting action on tissue or refuse of the manually pushed cage ribs. This cutting action assists in the evacuation of refuse, especially for semi-solid refuse.
- a different disposition of the knife is provided.
- a straight knife 30 is protected by a cylindrical sheath 14 and by knife head 40.
- Elements of this embodiment of the invention which are similar to elements which have been previously described with respect to the preferred embodiment hereinabove, are similarly designated and will not be further described.
- a rotor 12 turning the knife 30 is centered by a proximal spacer 20 and a distal spacer 18, and driven by a motor 24.
- a suction outlet 22 facilitates connection to a vacuum generator (not shown).
- the structure of knife 30 is elaborated in Fig. 4 to which reference is now made.
- the knife 30 is composed of at least two radially disposed blades 32 and 33, having the rotor 12 connected at location 55, which overlaps the center of radial symmetry of the knife, marked by axis 56.
- the direction of rotation of the rotor is indicated by three arrows.
- the knife is viewed indicating opposite cutting edges 31 and 29, each of a different blade.
- the flank of each blade facing the direction of the rotor 12 is curved, with the sharp, cutting edges 31 and 33 facing the direction of radial movement respectively, as indicated by the straight arrows 51 and 52.
- Arrow 53 indicates the direction of the radial movement around the rotor 12.
- the shape of the blades in this embodiment promotes the parallel functionality of the knife 30.
- the cutting and mincing action on the one hand, and the backward pushing of the minced suspension on the other hand as marked by arrow 57 are the two parallel functions of the knife.
- the pushing action is provided due to the shape of the progressing blade flank.
- a refuse chunk has been cut off by the blade, it is subjected to the constant pushing action of the blade flank.
- One component of that force is in the circular direction, whereas the other component, exerted simultaneously, results from the backward pushing component of the progressing blade.
- Such a backward pushing force is exerted in addition to the suction force provided through the suction outlet.
- FIGs. 5A and 5B A further embodiment of an aspirator is shown in Figs. 5A and 5B to which reference is now made. Elements of this embodiment of the invention which are similar to elements which have been previously described with respect to the preferred embodiment hereinabove, are similarly designated and will not be further described.
- a sectional elevational view of the aspirator shown in Fig. 5A comprises a proximal spacer 20 and a distal spacer 18 to keep the rotor 13 centralized.
- the rotor is powered by a motor 24, and the torque is conveyed by rotor 13 to a first knife 30 (proximal to cage 40) and a second knife 35 (distal to cage 40).
- Both of the knives are similar to the knife of Fig. 4.
- the knives 30, 35 therefore perform two tasks, one, of cutting and the other of pushing material away from the cage 40.
- the knife 30 is again protected by a cage 40 which has a base ring 45 screwed to the sheath 14, thus covering the orifice of the aspirator (not shown).
- the cage 40 is shown to comprise ribs 41. This specific embodiment allows for material to reach the vicinity of the front knife 30, without risking body tissues, which are not to be touched, due to knife action as discussed hereinabove in relation to other embodiments.
- the cage has a dual function in that it protects the tissue from potential knife injuries on the one hand and on the other hand it possibly dissects the refuse by way of the cutting action of the manually pushed cage ribs.
- a vacuum outlet 22 induces a suction in the sheath 14.
- this embodiment provides extra drawing power for minced material, by applying the mechanical suction provided by the distal knife 35.
- Fig. 5C shows an alternative knife configuration for this embodiment, where the knife 30 is a half-loop shaped knife (similar to knife 13 of Fig. 1A) and the knife 35 is a straight knife (similar to knife 30 of Fig. 3).
- any combination of types of knives may be used and also any number of knives may be used, and the combinations above are given by way of examples only.
- the above embodiments are characterized by a cutting action (C) of the knife head, a grinding action (G) of the rotating blade and a suction action (S) of the device.
- C.G.S the abbreviation
- FIG. 6 another embodiment of a suction device is shown in which a knife 30 is distal to the orifice 11 of the aspirator.
- the motor 24, the rotor 13, the sheath 14 and two spacers 18 and 20 are similar to those in the previous embodiments.
- Fig. 7A Another embodiment in which a single knife 13 is distal from the orifice is shown in Fig. 7A to which reference is now made.
- the knife 13 is loop shaped with the axis of rotation vertical, perpendicular to the axis of the sheath 14.
- the knife is disposed substantially at the outlet 22 of the vacuum and the driving motor 24 is disposed in line with the knife rotation axis and the rotor 12.
- Fig. 7B shows the loop shaped knife 13 and the shaft 19 by which it is attached to driving motor 24.
- the above two embodiments are termed Cutting, Suction, Grinding, Suction (C.S.G.S) as they are characterized by that sequence of events.
- Figs. 8A, 8B, 8C and 8D illustrate a further embodiment of the present invention.
- similar items to those in previous figures have similar numerals and will not be described further.
- the present embodiment features a pair of jaws 50 situated in front of orifice 11. Jaws 50 open and close in a pincer-like movement to trap and cut pieces of tissue in a pincer-like fashion. Jaws 50 are hollow, forming a hollow conical-like shape with a curved front, when closed. The closed position is shown best in Fig. 8C.
- the mechanism for opening and closing of jaws 50 best illustrated in
- Figs. 8B and 8C comprises a handle 53 connected to a shaft 55 which is anchored to the body of suction device 10 via a pivot 57 which allows the end of shaft 55 to articulate via a second pivot 59 with a plate 61.
- Plate 61 is attached to an outer cylinder 63 surrounding sheath 14 which moves in the direction of the external orifice 11 of the aspirator against the action of a spring 65 when handle 53 is pulled in the direction of arrow 69.
- Tabs 71 and 73 are attached to the top and the bottom of outer cylinder 63 via pivots 75 and 77, respectively.
- Tabs 71 and 73 push against tabs 79 and 81 , respectively attached to jaws 50 at a fixed angle, via pivots 83 and 85.
- Tabs 79 and 81 are anchored to sheath 14 at pivots 89 and 87, respectively.
- jaws 51 aids in the process of removing and evacuating certain types of tissue which it would be difficult to remove in their
- the invention thus facilitates minimal invasive surgery for removal of these types of tissues in that the tissue is cut and evacuated simultaneously.
- This embodiment may be termed B.G.S or Biting, Grinding and Suction illustrating the actions which occur.
- the cutting knife having the first contact with the refuse to be evacuated may be positioned in various positions.
- the sheath also functions as a
- the knife is a curved knife disposed at the open end of the sheath, in the second embodiment it is a straight knife, in the third embodiment two consecutive knives are disposed inside of the sheath, and in the fourth and fifth embodiments the knives are disposed deep
- a flexible tubing so that the sheath can be manipulated by the physician to reach unexposed or inaccessible niches in the body cavities.
- a flexible tubing In order to guard against collapse of the sheath if a flexible tubing is used, it can be prefabricated using a
- the sixth embodiment utilizes a knife deep within the sheath and a cutting implement at the orifice to cut tough tissues prior to evacuating them. It
- the fourth and fifth embodiments with a knife disposed deep within the sheath, lend themselves easily to the use of disposable sheath tubing. Such an application removes the need for cleaning and sterilizing the sheath and may thus
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU37278/99A AU3727899A (en) | 1998-05-12 | 1999-05-12 | Device and method for evacuating refuse from tissues of the body |
JP2000547920A JP2002514460A (en) | 1998-05-12 | 1999-05-12 | Apparatus and method for exhausting refuse from body tissue |
EP99919515A EP1085839A4 (en) | 1998-05-12 | 1999-05-12 | Device and method for evacuating refuse from tissues of the body |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IL124445 | 1998-05-12 | ||
IL12444598A IL124445A0 (en) | 1998-05-12 | 1998-05-12 | Device and method for evacuating refuse from tissues of the body |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999058066A1 true WO1999058066A1 (en) | 1999-11-18 |
Family
ID=11071486
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IL1999/000253 WO1999058066A1 (en) | 1998-05-12 | 1999-05-12 | Device and method for evacuating refuse from tissues of the body |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1085839A4 (en) |
JP (1) | JP2002514460A (en) |
AU (1) | AU3727899A (en) |
IL (1) | IL124445A0 (en) |
WO (1) | WO1999058066A1 (en) |
Cited By (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1297791A1 (en) * | 2001-09-10 | 2003-04-02 | Waldemar Link (GmbH & Co.) | Surgical tissue punch and instrument set containing the same |
EP1514521A1 (en) * | 2003-09-11 | 2005-03-16 | DePuy Mitek, Inc. | Tissue extraction and maceration device |
US8034003B2 (en) | 2003-09-11 | 2011-10-11 | Depuy Mitek, Inc. | Tissue extraction and collection device |
EP2653119A3 (en) * | 2012-04-18 | 2013-12-11 | Karl Storz GmbH & Co. KG | Medical instrument and method for assembling a medical instrument |
DE102013219525A1 (en) | 2012-09-27 | 2014-04-17 | Armin Daniels | Surgical instrument e.g. pliers, for liberating e.g. bone tissue of human, has tissue receiving chamber provided with receiving opening and breakthrough aperture that is provided to introduce ejection tool to carry out tissue from chamber |
US8936598B2 (en) | 2009-01-14 | 2015-01-20 | DePuy Synthes Products, LLC | Spinal disc preparation tool |
US8961551B2 (en) | 2006-12-22 | 2015-02-24 | The Spectranetics Corporation | Retractable separating systems and methods |
US9028520B2 (en) | 2006-12-22 | 2015-05-12 | The Spectranetics Corporation | Tissue separating systems and methods |
US9283040B2 (en) | 2013-03-13 | 2016-03-15 | The Spectranetics Corporation | Device and method of ablative cutting with helical tip |
US9291663B2 (en) | 2013-03-13 | 2016-03-22 | The Spectranetics Corporation | Alarm for lead insulation abnormality |
US9413896B2 (en) | 2012-09-14 | 2016-08-09 | The Spectranetics Corporation | Tissue slitting methods and systems |
USD765243S1 (en) | 2015-02-20 | 2016-08-30 | The Spectranetics Corporation | Medical device handle |
US9456872B2 (en) | 2013-03-13 | 2016-10-04 | The Spectranetics Corporation | Laser ablation catheter |
USD770616S1 (en) | 2015-02-20 | 2016-11-01 | The Spectranetics Corporation | Medical device handle |
US9603618B2 (en) | 2013-03-15 | 2017-03-28 | The Spectranetics Corporation | Medical device for removing an implanted object |
US9668765B2 (en) | 2013-03-15 | 2017-06-06 | The Spectranetics Corporation | Retractable blade for lead removal device |
US9883885B2 (en) | 2013-03-13 | 2018-02-06 | The Spectranetics Corporation | System and method of ablative cutting and pulsed vacuum aspiration |
US9925366B2 (en) | 2013-03-15 | 2018-03-27 | The Spectranetics Corporation | Surgical instrument for removing an implanted object |
US9980743B2 (en) | 2013-03-15 | 2018-05-29 | The Spectranetics Corporation | Medical device for removing an implanted object using laser cut hypotubes |
US10136913B2 (en) | 2013-03-15 | 2018-11-27 | The Spectranetics Corporation | Multiple configuration surgical cutting device |
US10383691B2 (en) | 2013-03-13 | 2019-08-20 | The Spectranetics Corporation | Last catheter with helical internal lumen |
US10405924B2 (en) | 2014-05-30 | 2019-09-10 | The Spectranetics Corporation | System and method of ablative cutting and vacuum aspiration through primary orifice and auxiliary side port |
US10448999B2 (en) | 2013-03-15 | 2019-10-22 | The Spectranetics Corporation | Surgical instrument for removing an implanted object |
US10835279B2 (en) | 2013-03-14 | 2020-11-17 | Spectranetics Llc | Distal end supported tissue slitting apparatus |
US10842532B2 (en) | 2013-03-15 | 2020-11-24 | Spectranetics Llc | Medical device for removing an implanted object |
CN117357210A (en) * | 2023-12-07 | 2024-01-09 | 北京大学第三医院(北京大学第三临床医学院) | Intra-articular episome clamping forceps capable of generating continuous stable suction force |
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JP6969038B2 (en) * | 2017-02-24 | 2021-11-24 | 国立大学法人金沢大学 | Forceps for removing foreign substances in blood vessels |
WO2018189774A1 (en) * | 2017-04-10 | 2018-10-18 | オリンパス株式会社 | Medical system |
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- 1999-05-12 JP JP2000547920A patent/JP2002514460A/en not_active Withdrawn
- 1999-05-12 EP EP99919515A patent/EP1085839A4/en not_active Withdrawn
- 1999-05-12 AU AU37278/99A patent/AU3727899A/en not_active Abandoned
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Cited By (60)
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EP1297791A1 (en) * | 2001-09-10 | 2003-04-02 | Waldemar Link (GmbH & Co.) | Surgical tissue punch and instrument set containing the same |
US8870788B2 (en) | 2003-09-11 | 2014-10-28 | Depuy Mitek, Llc | Tissue extraction and collection device |
EP1514521A1 (en) * | 2003-09-11 | 2005-03-16 | DePuy Mitek, Inc. | Tissue extraction and maceration device |
US8034003B2 (en) | 2003-09-11 | 2011-10-11 | Depuy Mitek, Inc. | Tissue extraction and collection device |
US8585610B2 (en) | 2003-09-11 | 2013-11-19 | Depuy Mitek, Llc | Tissue extraction and maceration device |
US10869687B2 (en) | 2006-12-22 | 2020-12-22 | Spectranetics Llc | Tissue separating systems and methods |
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Also Published As
Publication number | Publication date |
---|---|
JP2002514460A (en) | 2002-05-21 |
EP1085839A1 (en) | 2001-03-28 |
EP1085839A4 (en) | 2002-04-03 |
IL124445A0 (en) | 1998-12-06 |
AU3727899A (en) | 1999-11-29 |
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