WO1996037157A1 - Fasciotome - Google Patents

Fasciotome Download PDF

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Publication number
WO1996037157A1
WO1996037157A1 PCT/US1996/007719 US9607719W WO9637157A1 WO 1996037157 A1 WO1996037157 A1 WO 1996037157A1 US 9607719 W US9607719 W US 9607719W WO 9637157 A1 WO9637157 A1 WO 9637157A1
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WO
WIPO (PCT)
Prior art keywords
cutting surface
longitudinal axis
distal end
body member
cutting
Prior art date
Application number
PCT/US1996/007719
Other languages
French (fr)
Inventor
John M. Levin
Original Assignee
Levin John M
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 Levin John M filed Critical Levin John M
Priority to AU58780/96A priority Critical patent/AU5878096A/en
Publication of WO1996037157A1 publication Critical patent/WO1996037157A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • A61B17/320016—Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes

Definitions

  • This invention relates generally to the field of medical devices, more particularly, to cutting devices for cutting the fascia during laparoscopic surgery.
  • the removal of body parts during laparoscopic surgery requires the removed body part (e.g., gallbladder) to be pulled through the fascia as well as the skin.
  • the fascia is a fibrous membrane covering, supporting and separating muscles. It also unites the skin with underlying tissue. Since fascia may be superficial (nearly subcutaneous covering permitting free movement of the skin) or deep (enveloping and binding muscles) , closing incisions therein may be much more difficult than closing incisions in the skin. It is, therefore, advantageous to be able to create an opening in the fascia that is large enough to allow passage of the body part to be removed while minimizing the size of the opening in the fascia. Moreover, it is extremely important that the device used to cut the fascia does not puncture the body part to be removed, nor any underlying or surrounding body parts during insertion, cutting of the fascia and removal of the device.
  • the apparatus disclosed by Shutt is a retractable surgical instrument with a curved operative element. This device permits the cutting surfaces to be in a retracted condition until correct placement is made within the patient's body. Upon extension of the curved operative element, there is provided a predetermined transverse curve for cutting in a transverse direction.
  • the apparatus disclosed by Kajiyama is a surgical cutter having a closed distal end with a cut-out in an outer tubular member.
  • An air-driven piston is used to reciprocate the blade longitudinally, in and out of the cut-out portion, to cut tissue disposed at the cut-out portion.
  • the apparatus disclosed by Mueller et al. is a catheter for making intravascular incisions.
  • the catheter has a distal end that drives a cutting blade outward from the longitudinal axis of the catheter adjacent the location of stenosis (constriction or narrowing of a passage or orifice) .
  • the catheter is then translated within the vessel so that the blade cuts through the blockage.
  • the apparatus disclosed by Mott is a surgical instrument for lancing strictures or other obstructions in the normal diameter of passages of internal organs.
  • the instrument comprises an elongated body member having a cutting blade disposed transversely to the longitudinal axis of the elongated body member at the distal end thereof and the cutting blade is encased in a streamlined, separable bulb controlled by a concentric housing. Upon correct positioning by the surgeon adjacent the constriction, the concentric housing is drawn back, thereby exposing the cutting blade. The elongated body member is then manually reciprocated by the surgeon to cut the constriction.
  • the apparatus comprises an elongated cylindrical body member having a proximal and a distal end and having a longitudinal axis and whereby this elongated cylindrical body member is insertable into a laparoscopic incision.
  • a recess is located intermediate of the distal end and the proximal end.
  • a cutting surface is fixed within the recess and against relative movement within said recess.
  • the distal end is curved away from the longitudinal axis in a first direction and wherein the longitudinal axis and the first direction are oriented to determine a plane such that the cutting surface is disposed in that plane.
  • Fig. 1 is an isometric view of the fasciotome
  • Fig. 2 is an enlarged view taken along line 2-2 of Fig. 1;
  • Fig. 3 is a cross-sectional view of a laparoscopic incision showing the organ being externally stabilized in preparation for fasciotome insertion
  • Fig. 4 is a cross-sectional view of a laparoscopic incision showing the fasciotome cutting the fascia
  • Fig. 5 is an enlarged view taken along line 5-5 of Fig. 4;
  • Fig. 6 is an enlarged view of the cutting blade of the fasciotome.
  • the fasciotome 20 comprises an elongated cylindrical body member 22 (e.g., 6 mm in diameter) having a handle 24 at the proximal end 26.
  • the distal end 28 of the body member 22 comprises a curved segment 30 having a blunt tip 32 used for insertion of the fasciotome 20 into the patient through the skin 34, fat 36 and through the fascia 38, as schematically shown in Fig. 4.
  • a recessed area 40 Adjacent the distal end 28 is a recessed area 40 in the body member 22 in which a cutting blade 42 (e.g., a scalpel, or serrated blade as shown in Fig. 6) is fixedly secured so that the cutting surface 44 is aligned to the longitudinal axis 46 of the cylindrical body member 22 (i.e., the cutting surface 44 is disposed in the same longitudinal direction as the longitudinal axis 46).
  • the recessed area 40 is created by removing approximately two-thirds of the cross- section of the cylindrical body member 22 at that location to form the recess 40 defined by end walls 48A and 48B.
  • the cutting blade 44 is fixedly secured within the recessed area 40 by a suitable bonding material or by any other suitable means such that the cutting surface 44 is located at approximately two-thirds the diameter of the cylindrical body member 22, as indicated by dimension 50 (Fig. 2). As such, the cutting surface 44 does not project beyond the outer surface of the elongated cylindrical body member 22.
  • the longitudinal axis 46 and a "curved segment" axis 52 intersect and thereby determine a plane, P, such that the cutting surface 44 is substantially contained in that plane, P.
  • P the plane
  • the curved segment 30 displaces surrounding tissue away from the cutting surface 44 during descent of the fasciotome 20 within the laparoscopic incision, as will be discussed below.
  • the handle 24 includes alignment indicia 54 (e.g., a vertical line) that provides the surgeon with a visual indication where the cutting blade 42 is located.
  • the line 54 indicates that the cutting surface 44 is positioned beneath the line 54, intermediate the proximal end 26 and the distal end 28.
  • a body part 56 to be removed e.g., gallbladder
  • a body part 56 to be removed e.g., gallbladder
  • a grasping device 60 e.g., a forceps
  • the surgeon then, referencing the alignment indicia 54, introduces the blunt tip 32 of the fasciotome 20 into the incision 58 so that the cutting blade 42 is positioned away from the body part 56 to be removed.
  • the fasciotome 20 is then forced downward into the incision 58, with the curved blunt tip 32 opening the incision 58 to allow passage of the distal end 28 of the cylindrical body member 22 without puncturing the body part 56 or any other adjacent body parts during descent of the fasciotome 20 within and through the incision 58. Because the cutting blade 42 is recessed and the curved segment 30 displaces the skin 34 and fat 36 away from the cutting surface 44 in the plane P, the passage of the fasciotome 20 downward through the skin 34 and the fat 36 does not allow the cutting surface 44 to engage either the skin 34 or fat 36.
  • the recessed area 40 is disposed at the fascial level 38, as shown in Fig. 4.
  • the surgeon receives a tactile indication that the fascia 38 has been engaged, i.e., passage of the fasciotome 20 through the skin 34 and fat 36 is relatively easy, whereas entry into the fascia 38 is felt by the surgeon as a tight or stiff movement of the fasciotome 20.
  • the fascia 38 conforms to the shape of the elongated cylindrical body member 22 disposed therein and, as such, the fascia 38 expands into the recessed area 40 and abuts the cutting surface 44.
  • the surgeon then begins to reciprocally translate the fasciotome 20 up and down in a sawing action to cut the fascia 38 and thereby increase the size of the fascial incision 64 just enough to remove the body part 56 through the fascial level 38. It is enough for the fascial incision 64 to be widened at only one point; hence, there is no need for the cutting blade 42 to be disengaged from the fascia 38 and the fasciotome 20 rotated in place in order to cut at another location along the fascial incision 64 to further widen that incision 64.
  • the body part 56 can be more easily removed.
  • the fasciotome 20 can be removed either prior to, or subsequent to, removal of the body part 56.

Abstract

An apparatus (20) for cutting fascia (38) during laparoscopic surgery for facilitating the removal of an internal body part through a laparoscopic incision. The apparatus (20) allows for the insertion of a recessed cutting surface (44) through the laparoscopic incision without puncturing either the body part to be removed, or any adjacent body parts. The recessed cutting surface (44) also avoids the engagement of skin (34) or fat (36) during descent through the laparoscopic incision while permitting the engagement, and cutting, of fascia (38) once disposed therein.

Description

FASCIOTOME
SPECIFICATION FIELD OF THE INVENTION
This invention relates generally to the field of medical devices, more particularly, to cutting devices for cutting the fascia during laparoscopic surgery.
BACKGROUND OF THE INVENTION
The removal of body parts during laparoscopic surgery requires the removed body part (e.g., gallbladder) to be pulled through the fascia as well as the skin. The fascia is a fibrous membrane covering, supporting and separating muscles. It also unites the skin with underlying tissue. Since fascia may be superficial (nearly subcutaneous covering permitting free movement of the skin) or deep (enveloping and binding muscles) , closing incisions therein may be much more difficult than closing incisions in the skin. It is, therefore, advantageous to be able to create an opening in the fascia that is large enough to allow passage of the body part to be removed while minimizing the size of the opening in the fascia. Moreover, it is extremely important that the device used to cut the fascia does not puncture the body part to be removed, nor any underlying or surrounding body parts during insertion, cutting of the fascia and removal of the device.
The following United States Patents describe various types of surgical cutting apparatus: 5,292,330 (Shutt); 5,226,910 (Kajiyama et al.) ; 5,053,044 (Mueller et al.); 769,829 (Mott) .
The apparatus disclosed by Shutt is a retractable surgical instrument with a curved operative element. This device permits the cutting surfaces to be in a retracted condition until correct placement is made within the patient's body. Upon extension of the curved operative element, there is provided a predetermined transverse curve for cutting in a transverse direction.
The apparatus disclosed by Kajiyama is a surgical cutter having a closed distal end with a cut-out in an outer tubular member. An air-driven piston is used to reciprocate the blade longitudinally, in and out of the cut-out portion, to cut tissue disposed at the cut-out portion.
The apparatus disclosed by Mueller et al. is a catheter for making intravascular incisions. The catheter has a distal end that drives a cutting blade outward from the longitudinal axis of the catheter adjacent the location of stenosis (constriction or narrowing of a passage or orifice) . The catheter is then translated within the vessel so that the blade cuts through the blockage.
The apparatus disclosed by Mott is a surgical instrument for lancing strictures or other obstructions in the normal diameter of passages of internal organs. The instrument comprises an elongated body member having a cutting blade disposed transversely to the longitudinal axis of the elongated body member at the distal end thereof and the cutting blade is encased in a streamlined, separable bulb controlled by a concentric housing. Upon correct positioning by the surgeon adjacent the constriction, the concentric housing is drawn back, thereby exposing the cutting blade. The elongated body member is then manually reciprocated by the surgeon to cut the constriction.
However, it is believed that a need exists for a fascial-cutting device that can be inserted within a laparoscopic incision without the need for encasing the cutting surface inside a housing during insertion, without the need to drive any cutting surface outside the periphery of the instrument and without puncturing adjacent organs during insertion.
OBJECTS OF THE INVENTION
Accordingly, it is the general object of this invention to provide an apparatus and a method of use which addresses the aforementioned needs.
It is a further object of this invention to provide an apparatus that can cut fascia through a laparoscopic incision.
It is yet another object of this invention to provide an apparatus that can be inserted within a laparoscopic incision without the need for encasing or concealing the cutting surface inside a housing during insertion.
It is yet another object of this invention to provide an apparatus that can cut fascia through a laparoscopic incision without puncturing underlying or surrounding body parts.
It is still yet a further object of this invention to provide an apparatus that can provide a visual indication to the surgeon of the position of the cutting portion of the fasciotome.
SUMMARY OF THE INVENTION
These and other objects of the instant invention are achieved by providing an apparatus for cutting the fascia during laparoscopic surgery to facilitate the removal of a subfascial body part. The apparatus comprises an elongated cylindrical body member having a proximal and a distal end and having a longitudinal axis and whereby this elongated cylindrical body member is insertable into a laparoscopic incision. A recess is located intermediate of the distal end and the proximal end. A cutting surface is fixed within the recess and against relative movement within said recess.
In a preferred embodiment, the distal end is curved away from the longitudinal axis in a first direction and wherein the longitudinal axis and the first direction are oriented to determine a plane such that the cutting surface is disposed in that plane.
DESCRIPTION OF THE DRAWINGS
Other objects and many of the attendant advantages of this invention will be readily appreciated as the same becomes better understood by reference to the following detailed description when considered in connection with the accompanying drawings wherein:
Fig. 1 is an isometric view of the fasciotome;
Fig. 2 is an enlarged view taken along line 2-2 of Fig. 1;
Fig. 3 is a cross-sectional view of a laparoscopic incision showing the organ being externally stabilized in preparation for fasciotome insertion; Fig. 4 is a cross-sectional view of a laparoscopic incision showing the fasciotome cutting the fascia;
Fig. 5 is an enlarged view taken along line 5-5 of Fig. 4; and
Fig. 6 is an enlarged view of the cutting blade of the fasciotome.
DESCRIPTION OF THE PREFERRED EMBODIMENT OF THE INVENTION
Referring now in greater detail to the various figures of the drawing wherein like reference characters refer to like parts, a fasciotome constructed in accordance with the present invention is shown generally at 20 in Fig. 1. The fasciotome 20 comprises an elongated cylindrical body member 22 (e.g., 6 mm in diameter) having a handle 24 at the proximal end 26. The distal end 28 of the body member 22 comprises a curved segment 30 having a blunt tip 32 used for insertion of the fasciotome 20 into the patient through the skin 34, fat 36 and through the fascia 38, as schematically shown in Fig. 4.
Adjacent the distal end 28 is a recessed area 40 in the body member 22 in which a cutting blade 42 (e.g., a scalpel, or serrated blade as shown in Fig. 6) is fixedly secured so that the cutting surface 44 is aligned to the longitudinal axis 46 of the cylindrical body member 22 (i.e., the cutting surface 44 is disposed in the same longitudinal direction as the longitudinal axis 46). As shown in Fig. 2, the recessed area 40 is created by removing approximately two-thirds of the cross- section of the cylindrical body member 22 at that location to form the recess 40 defined by end walls 48A and 48B. Thereafter, the cutting blade 44 is fixedly secured within the recessed area 40 by a suitable bonding material or by any other suitable means such that the cutting surface 44 is located at approximately two-thirds the diameter of the cylindrical body member 22, as indicated by dimension 50 (Fig. 2). As such, the cutting surface 44 does not project beyond the outer surface of the elongated cylindrical body member 22.
It should be noted that, if for some reason, enclosing the recessed area 40 is desired, the provision of a cover member is within the scope of the broadest aspect of the invention. However, in the preferred embodiment the cutting surface 44 is exposed with no complex cover member to cover the cutting surface 44.
It also should be noted that the longitudinal axis 46 and a "curved segment" axis 52, as shown in Fig. 1 and Fig. 6, intersect and thereby determine a plane, P, such that the cutting surface 44 is substantially contained in that plane, P. The importance of this orientation is that with the curved segment 30 and the cutting surface 44 lying substantially in the plane P, the curved segment 30 displaces surrounding tissue away from the cutting surface 44 during descent of the fasciotome 20 within the laparoscopic incision, as will be discussed below. However, in some situations, it may be acceptable to locate the cutting surface 44 outside that plane P provided that the cutting surface 44 is aligned with the longitudinal axis 46. In other instances it may not be necessary to even have the curved segment 30.
The handle 24 includes alignment indicia 54 (e.g., a vertical line) that provides the surgeon with a visual indication where the cutting blade 42 is located. In particular, the line 54 indicates that the cutting surface 44 is positioned beneath the line 54, intermediate the proximal end 26 and the distal end 28.
Operation of the fasciotome 20 is as follows: It is assumed that access to a body part 56 to be removed (e.g., gallbladder) has already been achieved through the laparoscopic incision 58 (viz., through the skin 34, fat 36 and fascia 38) and that a portion of that body part 56 has been stabilized externally with a grasping device 60 (e.g., a forceps) , as shown in Fig. 3. The surgeon then, referencing the alignment indicia 54, introduces the blunt tip 32 of the fasciotome 20 into the incision 58 so that the cutting blade 42 is positioned away from the body part 56 to be removed. The fasciotome 20 is then forced downward into the incision 58, with the curved blunt tip 32 opening the incision 58 to allow passage of the distal end 28 of the cylindrical body member 22 without puncturing the body part 56 or any other adjacent body parts during descent of the fasciotome 20 within and through the incision 58. Because the cutting blade 42 is recessed and the curved segment 30 displaces the skin 34 and fat 36 away from the cutting surface 44 in the plane P, the passage of the fasciotome 20 downward through the skin 34 and the fat 36 does not allow the cutting surface 44 to engage either the skin 34 or fat 36. In addition, with the cutting blade 42 turned away from the stabilized body part 56 as indicated by the alignment indicia 54, only a smooth surface 62 of the elongated cylindrical body member 22 is in contact with the body part 56 during descent of the fasciotome 20 (Fig. 5).
Once the surgeon has introduced the fasciotome 20 deep enough, the recessed area 40 is disposed at the fascial level 38, as shown in Fig. 4. The surgeon receives a tactile indication that the fascia 38 has been engaged, i.e., passage of the fasciotome 20 through the skin 34 and fat 36 is relatively easy, whereas entry into the fascia 38 is felt by the surgeon as a tight or stiff movement of the fasciotome 20. Due to the nature of the fascia 38, the fascia 38 conforms to the shape of the elongated cylindrical body member 22 disposed therein and, as such, the fascia 38 expands into the recessed area 40 and abuts the cutting surface 44. The surgeon then begins to reciprocally translate the fasciotome 20 up and down in a sawing action to cut the fascia 38 and thereby increase the size of the fascial incision 64 just enough to remove the body part 56 through the fascial level 38. It is enough for the fascial incision 64 to be widened at only one point; hence, there is no need for the cutting blade 42 to be disengaged from the fascia 38 and the fasciotome 20 rotated in place in order to cut at another location along the fascial incision 64 to further widen that incision 64.
After the fascial incision 64 has been widened, the body part 56 can be more easily removed. The fasciotome 20 can be removed either prior to, or subsequent to, removal of the body part 56.
Without further elaboration, the foregoing will so fully illustrate my invention that others may, by applying current or future knowledge, readily adopt the same for use under various conditions of service.

Claims

1. An apparatus (20) for cutting fascia (38) during laparoscopic surgery to facilitate the removal of a subfascial body part, characterised in that said apparatus comprises: an elongated cylindrical body member (22) having a proximal (26) and a distal end (28) , said elongated cylindrical body member (22) having a longitudinal axis (46) and being insertable into a laparoscopic incision; a recess (40) located intermediate of the distal end (28) and the proximal end (26) ; and a cutting surface (44) fixed within said recess (40) and against relative movement within said recess.
2. The apparatus (20) of Claim 1 characterised in that said cutting surface (44) is aligned with said longitudinal axis (46).
3. The apparatus (20) of Claim 1 characterised in that a handle (24) is disposed at the proximal end (26) , said handle having an indicator (54) of the position of said cutting surface (44).
4. The apparatus (20) of Claim 1 characterised in that the distal end (28) is curved away (52) from said longitudinal axis (46) in a first direction.
5. The apparatus (20) of Claim 4 characterised in that said longitudinal axis (46) and said first direction (52) are oriented to determine a plane (p) , said cutting surface (44) being disposed in said plane.
6. The apparatus (20) of Claim 1 characterised in that the distal end (28) terminates in a distal tip (32) , said distal tip (32) being blunt.
7. The apparatus (20) of Claim 1 characterised in that said elongated cylindrical body member (22) has an outer surface and wherein said cutting surface (44) does not extend beyond said outer surface.
8. An apparatus (20) for cutting fascia (38) during laparoscopic surgery to facilitate the removal of a subfascial body part, characterised in that said apparatus comprises: an elongated cylindrical body member (22) having a proximal (26) and a distal end (28) , said elongated cylindrical body member (22) having a longitudinal axis (46) and being insertable into a laparoscopic incision; a cutting surface (44) fixed to said elongated cylindrical body member (22) intermediate of the distal end (28) and the proximal end (26) ; and a handle (24) disposed at the proximal end (26) and having indicia (54) , said indicia comprising a line aligned with said cutting surface (44) .
9. An apparatus (20) for cutting fascia (38) during laparoscopic surgery to facilitate the removal of a subfascial body part, characterised in that said apparatus comprises: an elongated cylindrical body member (22) having a proximal (26) and a distal end (28) and an outer surface, said elongated cylindrical body member (22) having a longitudinal axis (46) and being insertable into a laparoscopic incision; the distal end (28) being curved away (52) from said longitudinal axis (46) in a first direction and terminating in a distal tip (32) ; said longitudinal axis (46) and said first direction (52) being oriented to determine a plane (P) ; and a recess (40) located adjacent the distal end (28) and having a cutting surface (44) that does not extend beyond said outer surface, said cutting surface being disposed in said plane (P) .
10. The apparatus (20) of Claim 9 characterised in that said longitudinal axis (46) and said first direction (52) intersect.
11. The apparatus (20) of Claim 9 characterised in that said cutting surface (44) is aligned with said longitudinal axis (46) .
12. The apparatus (20) of Claim 9 characterised in that said distal tip (32) is blunt.
13. The apparatus (20) of Claim 9 characterised in that the proximal end (26) comprises a handle.
14. The apparatus (20) of Claim 9 characterised in that said elongated cylindrical body member (22) has a diameter and wherein said cutting surface (44) is disposed at a position (50 approximately two-thirds of said diameter from said outer surface.
15. The apparatus (20) of Claim 9 characterised in that said cutting surface (44) is serrated.
16. The apparatus (20) of Claim 13 characterised in that said handle (24) comprises alignment indicia (54) located in a predetermined relationship to said cutting surface (44) for indicating the position of said cutting surface (44) .
17. The apparatus (20) of Claim 14 characterised in that said handle (24) comprises alignment indicia (54) located in a predetermined relationship to said cutting surface (44) for indicating the position of said cutting surface (44) .
18. An apparatus (20) for cutting fascia (38) during laparoscopic surgery to facilitate the removal of a subfascial body part, characterised in that said apparatus comprises: an elongated cylindrical body member (22) having a proximal (26) and a distal end (28) , said elongated cylindrical body member (22) having a longitudinal axis (46) and being insertable into a laparoscopic incision; the distal end (28) being curved away (52) from said longitudinal axis (46) in a first direction and terminating in a distal tip (32) ; said longitudinal axis (46) and said first direction (52) being oriented to determine a plane (P) ; and a recess (40) located adjacent the distal end (28) and having a cutting surface (44) fixed against longitudinal movement and totally disposed therein, said cutting surface (44) being disposed in said plane (P) .
19. The apparatus (20) of Claim 18 characterised in that said cutting surface (44) is aligned with said longitudinal axis (46) .
20. The apparatus (20) of Claim 18 characterised in that said distal tip (32) is blunt.
21. The apparatus (20) of Claim 18 characterised in that the proximal end (26) comprises a handle (24) .
22. The apparatus (20) of Claim 18 characterised in that said elongated cylindrical body member (22) has a diameter and an outer surface and wherein said cutting surface (44) is disposed at a position (50) approximately two-thirds of said diameter from said outer surface.
23. The apparatus (20) of Claim 18 characterised in that said cutting surface (44) is serrated.
24. The apparatus of Claim 21 characterised in that said handle (24) comprises alignment indicia (54) located in a predetermined relationship to said cutting surface (44) for indicating the position of said cutting surface (44) .
25. The apparatus (20) of Claim 22 characterised in that said handle (24) comprises alignment indicia (54) located in a predetermined relationship to said cutting surface (44) for indicating the position of said cutting surface (44) .
26. An apparatus (20) for cutting fascia (38) during laparoscopic surgery to facilitate the removal of a subfascial body part, characterised in that said apparatus comprises: an elongated cylindrical body member (22) having a proximal (26) and a distal end (28) , said elongated cylindrical body member (22) having a longitudinal axis (46) and being insertable into a laparoscopic incision; the distal end (28) being curved away (52) from said longitudinal axis (46) in a first direction and terminating in a distal tip (32) ; and a recess (40) located adjacent the distal end (28) and having a cutting surface (44) totally retained therein, said cutting surface (44) being aligned with said longitudinal axis (46) .
PCT/US1996/007719 1995-05-26 1996-05-24 Fasciotome WO1996037157A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU58780/96A AU5878096A (en) 1995-05-26 1996-05-24 Fasciotome

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US45205095A 1995-05-26 1995-05-26
US08/452,050 1995-05-26

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8840631B2 (en) 2009-10-29 2014-09-23 Cook Medical Technologies Llc Compartment syndrome treatment method and surgical instrument for same

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2676595A (en) * 1953-01-21 1954-04-27 Dyekjaer Elith Gerhard Veterinary surgical knife
US3886943A (en) * 1973-08-10 1975-06-03 Aphrodite P Skiff Surgical instrument
US4273128A (en) * 1980-01-14 1981-06-16 Lary Banning G Coronary cutting and dilating instrument
SU1187800A1 (en) * 1984-01-05 1985-10-30 Le Nii Khirurgicheskogo Tuberk Scalpel
US4685458A (en) * 1984-03-01 1987-08-11 Vaser, Inc. Angioplasty catheter and method for use thereof
DE3624243A1 (en) * 1986-07-18 1988-01-28 Wolfram Hein Scalpel blade

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2676595A (en) * 1953-01-21 1954-04-27 Dyekjaer Elith Gerhard Veterinary surgical knife
US3886943A (en) * 1973-08-10 1975-06-03 Aphrodite P Skiff Surgical instrument
US4273128A (en) * 1980-01-14 1981-06-16 Lary Banning G Coronary cutting and dilating instrument
SU1187800A1 (en) * 1984-01-05 1985-10-30 Le Nii Khirurgicheskogo Tuberk Scalpel
US4685458A (en) * 1984-03-01 1987-08-11 Vaser, Inc. Angioplasty catheter and method for use thereof
DE3624243A1 (en) * 1986-07-18 1988-01-28 Wolfram Hein Scalpel blade

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8840631B2 (en) 2009-10-29 2014-09-23 Cook Medical Technologies Llc Compartment syndrome treatment method and surgical instrument for same

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