Sterile clips and instrument for their placement

• US 5,342,373 A
• Filed: 09/14/1992
• Issued: 08/30/1994
• Est. Priority Date: 09/14/1992
• Status: Expired due to Term

• Current Assignee: Ethicon Incorporated (Johnson & Johnson)
• Original Assignee: Ethicon Incorporated (Johnson & Johnson)
• Inventors: Stefanchik, David, Biehle, Edward J. IV
• Primary Examiner(s): Pellegrino, Stephen G.
• Assistant Examiner(s): Jackson, Gary
• Application Number:
  US07/944,584
• Time in Patent Office: 715 Days
• Field of Search: 606/142-158, 227/901, 227/902
• US Class Current: 606/142
• CPC Class Codes: A61B 17/1285 for minimally invasive surgery
• CPC Class Codes: Y10S 227/901 Surgical clip appliers
• CPC Class Codes: Y10S 227/902 Surgical clips or staples

Abstract

An improved surgical instrument and sterile clip for ligating the vessel of a mammal. The clip has a pair of legs which are urged apart by the instrument to allow the clip to be placed on the vessel to be ligated.

Claims

1. sterile clip for ligating a vessel in a mammal, said clip comprising a pair of right angle members, each right angle member comprising a pair of legs disposed at right angles to each other, one leg of each of said right angle member being in substantially the same plane and the other leg of each right angle member being in close proximity to and in facing relationship with each other, and a connecting member joining said right angle members said connecting member restricting separation of said right angle members.

2. A sterile clip according to claim 1 wherein the legs of the right angle members in facing relationship with each other are substantially parallel to each other along substantially their entire length.

3. A sterile clip according to claim 1 wherein the area of the right angle members connecting the legs is smoothly curved.

4. A sterile clip according to claim 1 wherein the connecting member is substantially semi-circular in shape and connects the legs of the right angle members which legs are in close proximity to each other.

5. A sterile clip according to claim 4 wherein the connecting member is disposed along the length of the legs of the right angle member which legs are in close proximity to each other.

6. A hemostatic clip for closing a tubular blood vessel in the body of a human, said clip comprising a pair of right angle members, each right angle member comprising a pair of legs disposed at right angles to each other, one leg of said right angle member being in substantially the same plane and the other leg of each said right angle member being in close proximity and in facing relationship to each other and a resilient member connecting said right angle members and urging said legs in facing relationship towards one another.

7. A hemostatic clip according to claim 6 wherein the legs of said right angle members in facing relationship are substantially parallel to each other along their entire length.

8. A hemostatic clip according to claim 6 wherein the portion of the right angle members which connects the legs of the right angle members is smoothly curved to facilitate placement of the clip on a vessel.

9. A hemostatic clip according to claim 6 wherein the resilient member connecting said right angle members is substantially semi-circular in shape and connects the legs of the right angle members which legs are in close proximity to each other.

10. A hemostatic clip according to claim 9 wherein the resilient member connecting said right angle members is disposed along the length of the legs of the right angle member which legs are in close proximity to each other.

11. An instrument for applying a pair of hemostatic clips to a blood vessel in the body of a human to close said vessel and then severing said vessel in the area between said clips, said instrument comprising a handle portion, a nose portion and a housing connecting said handle portion to said nose portion, said nose portion being hollow and including a horizontal slit, a pair of parallel slits disposed perpendicular to said horizontal slit and transversing said horizontal slit, said perpendicular slits being positioned at the outer edges of the said horizontal slit, said housing containing a pair of deflectable surfaces extending into said horizontal slit, a pair of hemostatic clips, each of said clips comprising a pair of leg members in close proximity to one another, said leg members being connected together at one end thereof by a resilient member and being unconnected at their opposite end, one of said clips being positioned in one of said perpendicular slits and the other of said clips being positioned in the other perpendicular slit, a knife member disposed in said housing, the cutting edge of said knife member being positioned in said nose section between said clips, means for reciprocating said nose section from a rearwardmost position to expose said deflectable surfaces beyond the nose member to accept a vessel to be ligated to a forwardmost position to bring said deflectable surfaces together and position the legs of the clips on the edges of said deflectable surfaces to close said vessel and means for moving said knife member forwardly to sever said closed vessel between said clips.

12. An endoscopic clip applying instrument for applying a clip to body tissue comprising;

a handle portion;

an elongate hollow tubular member extending distally from said handle portion,

a pair of diverging members extending from the distal end of said hollow tubular member for accepting body tissue therebetween;

a plurality of clips stored in said hollow tubular member;

reciprocating means disposed at the distal end of said hollow tubular member movable between a first position which brings said diverging members into substantial parallelism and simultaneously advances a pair of clips, one along each longitudinal edge of said parallel members while said body tissue is between said parallel members and a second position which allows said members to diverge while said clip remains on said body tissue.

13. An endoscopic clip applying instrument for applying a clip to a vessel to ligate said vessel comprising;

a handle portion;

actuating means disposed in said handle portion;

an elongated hollow tubular portion extending distally from said handle portion;

a pair of diverging surfaces extending from the distal end of said hollow tubular portion for accepting a vessel to be ligated therebetween;

a reciprocal member disposed at the distal end of said hollow tubular portion, said member comprising a pair of spaced apart substantially parallel surfaces;

a plurality of clips in seriatim disposed in said hollow tubular portion;

a first drive means extending from said actuating means to said reciprocal member to move said parallel surfaces over said diverging surfaces and bring said diverging surfaces into substantial parallelism;

a second drive means extending from said actuating means to the proximal clip of said plurality of clips to move said plurality of clips so that the most distal clip is along the longitudinal edge of said diverging surfaces when said diverging surfaces are in substantial parallelism to place said clip on the vessel and ligate the vessel; and

means to return said reciprocal member to its original position and remove said parallel surfaces from said diverging surfaces and allow the ligated vessel to be removed from the instrument.

14. An endoscopic clip applying instrument according to claim 13 wherein there is a pair of a plurality of clips in seriatim disposed in said hollow tubular portion one of said pair being in substantial alignment with one longitudinal edge of said diverging surfaces and the other of said pair being in substantial alignment with the other longitudinal edge of said diverging surfaces and said second drive means moves the most distal clip of one of said pair along said one longitudinal edge and the most distal clip of the other of said pair along said other longitudinal edge.