Self-centering clip and jaw

• US 9,011,464 B2
• Filed: 08/02/2011
• Issued: 04/21/2015
• Est. Priority Date: 11/02/2010
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Zammataro, Tom
• Primary Examiner(s): Fishback, Ashley
• Assistant Examiner(s): OU, JING RUI
• Application Number:
  US13/196,109
• Publication Number:
  US 20120109158A1
• Time in Patent Office: 1,358 Days
• Field of Search: 606/142, 606/143, 606/139, 606/157, 606/158
• US Class Current: 606/142
• CPC Class Codes: A61B 17/10 for applying or removing wound clamps, e.g. containing only one clamp or staple A61B17/076 takes precedence; containing multiple wound clamps A61B17/068; Wound clamp magazines containers, packaging elements or packages specially adapted for particular articles or with special means for dispensing contents B65D83/00, B65D85/00
• CPC Class Codes: A61B 17/12 for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord specially adapted for vas deferens or fallopian tubes A61F6/20; materials for ligaturing blood vessels A61L17/00
• CPC Class Codes: A61B 17/122 Clamps or clips , e.g. for the umbilical cord for the vas deferens A61F6/206
• CPC Class Codes: A61B 17/128 for applying or removing clamps or clips
• CPC Class Codes: A61B 17/1285 for minimally invasive surgery
• CPC Class Codes: A61B 2017/0488 Instruments for applying suture clamps, clips or locks for applying suture anchors A61B2017/0409; for applying wound clamps A61B17/10; for applying ligaturing clamps or clips A61B17/128
• CPC Class Codes: A61B 2017/12004 for haemostasis, for prevention of bleeding

Abstract

An apparatus for applying surgical clips to tissue includes a handle assembly having a trigger and a shaft extending therefrom. The shaft includes at least one surgical clip therein. Each clip includes a pair of legs connected by a crossbar. Each of the pair of legs has an inwardly and an outwardly facing surface, the outwardly facing surface having a raised profile protruding therefrom and extending longitudinally therealong. A jaw assembly is disposed at a distal end of the shaft and includes first and second opposed jaws moveable between a spaced apart and an approximated position. Each jaw defines a recess extending longitudinally along opposing inner surfaces thereof. Each recess defines a longitudinally extending groove having a profile substantially complementary to the raised profile of the legs of the clips. The legs of each clip are positionable at least partially within respective grooves of the recesses of the jaws.

Claims

1. An apparatus for application of surgical clips to body tissue, the apparatus comprising:

a handle assembly having a handle and a trigger moveable with respect to the handle;

an elongated shaft extending distally from the handle assembly, the elongated shaft including at least one surgical clip disposed therein, each surgical clip including a pair of legs connected to each other at one end by a crossbar, each of the pair of legs having an inwardly facing surface and an outwardly facing surface, the outwardly facing surface having a raised profile protruding therefrom and extending longitudinally therealong, wherein the outwardly facing surface of each leg of each surgical clip is defined by a first wall and a second wall angled toward each other and defining a first angle therebetween; and

a jaw assembly disposed at a distal end of the elongated shaft, the jaw assembly including first and second opposed jaws moveable between a spaced apart position and an approximated position, each of the jaws defining a recess extending longitudinally along opposing inner surfaces thereof, each of the recesses defining a longitudinally extending groove having a profile substantially complementary to the raised profile of the legs of the at least one surgical clip, wherein the groove of each jaw is defined by a first wall and a second wall angled toward each other and defining a second angle therebetween, the first angle being smaller than the second angle;

wherein the legs of each of the surgical clips is positionable at least partially within respective grooves of the recesses of the jaws.

2. The apparatus according to claim 1, wherein the outwardly facing surfaces of the legs of each surgical clip have a substantially triangular transverse cross-sectional profile.

3. The apparatus according to claim 1, wherein the groove defined in each recess of the jaws has a substantially triangular transverse cross-sectional profile.

4. The apparatus according to claim 1, wherein each leg of each surgical clip has a chevron transverse cross-sectional profile.

5. The apparatus according to claim 1, wherein a shoulder is defined at an interface between the recess and the groove of each jaw at opposed sides of the groove.

6. The apparatus according to claim 1, wherein the crossbar of each surgical clip has a chevron shaped transverse cross-sectional profile.