STAPLE CARTRIDGE INCLUDING A BARBED STAPLE

• US 20140166726A1
• Filed: 02/24/2014
• Published: 06/19/2014
• Est. Priority Date: 02/24/2014
• Status: Abandoned Application

• Current Assignee: Cilag Gmbh International (Johnson & Johnson)
• Original Assignee: Ethicon Endo-Surgery, Inc. (Johnson & Johnson)
• Inventors: Schellin, Emily A., Aronhalt, Taylor W., Vendely, Michael J., Shelton, Frederick E. IV
• Application Number:
  US14/187,400
• Publication Number:
  US 20140166726A1
• Time in Patent Office: Days
• US Class Current: 227/178.1
• CPC Class Codes: A61B 17/064 Surgical staples, i.e. penetrating the tissue
• CPC Class Codes: A61B 17/0644 penetrating the tissue, deformable to closed position
• CPC Class Codes: A61B 17/068 Surgical staplers , e.g. containing multiple staples or clampsstaplers containing only one staple A61B17/10; magazines or containers for staples A61B17/105; for performing anastomosis A61B17/115; staplers in general B25C5/00
• CPC Class Codes: A61B 17/072 for applying a row of staples in a single action , e.g. the staples being applied simultaneously
• CPC Class Codes: A61B 17/07207 the staples being applied sequentially
• CPC Class Codes: A61B 17/07292 Reinforcements for staple line, e.g. pledgets
• CPC Class Codes: A61B 17/105 Wound clamp magazines for packaging sharps A61B50/3001
• CPC Class Codes: A61B 2017/00004 (bio)absorbable, (bio)resorbable or resorptive
• CPC Class Codes: A61B 2017/00526 Methods of manufacturing
• CPC Class Codes: A61B 2017/0688 Packages or dispensers for surgical staplers
• CPC Class Codes: A61B 2017/07235 containing different staples, e.g. staples of different shapes, sizes or materials
• CPC Class Codes: A61B 2017/07242 achieving different staple heights during the same shot, e.g. using an anvil anvil having different heights or staples of different sizes
• CPC Class Codes: A61B 2017/07257 characterised by its anvil
• CPC Class Codes: A61B 2017/07264 characterised by its staple forming cavities, e.g. geometry or material
• CPC Class Codes: A61B 2017/07271 characterised by its cartridge
• CPC Class Codes: A61B 2017/07278 characterised by its sled or its staple holder
• CPC Class Codes: A61B 2017/07285 characterised by its cutter
• CPC Class Codes: A61L 31/04 Macromolecular materials
• CPC Class Codes: A61L 31/146 Porous materials, e.g. foams or sponges
• CPC Class Codes: B29C 43/00 Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor by liberation of internal stresses B29C61/006
• CPC Class Codes: B29C 43/52 : Heating or cooling
• CPC Class Codes: B29C 55/00 : Shaping by stretching, e.g. drawing through a die; Apparatus therefor B29C61/08 takes precedence
• CPC Class Codes: B29C 67/20 : for porous or cellular articles, e.g. of foam plastics, coarse-pored chemical aspects of working up macro-molecular substances to porous or cellular articles C08J9/00
• CPC Class Codes: B29K 2105/04 : cellular or porous
• CPC Class Codes: B29K 2995/0056 : Biocompatible, e.g. biopolymers or bioelastomers
• CPC Class Codes: B29L 2031/7546 : Surgical equipment

Abstract

An end effector for fastening tissue including a cartridge having a longitudinal row of staple cavities and a plurality of staples removably stored in the staple cavities. The staple includes a base, a pair of legs extending from the base, and a plane formed by the pair of legs, wherein at least one of the legs has a barb extending therefrom. The barb extends from the leg less than 360 degrees around the leg, wherein the barb extends beyond the plane formed by the legs. The end effector also includes an anvil configured to deform the staples, and a plurality of staple drivers movable within the cavities configured to lift the staples toward the anvil. The end effector further includes a firing member, configured to lift the staple driver system toward the anvil, including a first portion configured to engage the anvil and a second portion configured to engage the cartridge. The firing member is configured to relatively position the anvil and the cartridge.

Claims

1. An end effector for fastening tissue, comprising:

a cartridge comprising a longitudinal row of staple cavities;

a plurality of staples removably stored in said staple cavities, wherein each said staple comprises;

a base;

a pair of legs extending from said base; and

a plane formed by said pair of legs, wherein at least one of said legs comprises at least one barb extending therefrom extending less than 360 degrees around said leg, wherein said barb extends beyond the plane formed by said legs, and wherein each said leg comprises a tip configured to pierce tissue;

an anvil configured to deform said staples;

a plurality of staple drivers movable within said cavities configured to lift said staples toward said anvil; and

a firing member configured to lift said staple driver system toward said anvil, wherein said firing member comprises a first portion configured to engage said anvil and a second portion configured to engage said cartridge, and wherein said firing member is configured to relatively position said anvil and said cartridge.

2. The end effector of claim 1, wherein said firing member comprises a knife edge.

3. The end effector of claim 1, wherein said firing member comprises at least one inclined surface configured to lift said drivers toward said anvil.

4. An end effector for fastening tissue, comprising:

a cartridge comprising a plurality of staple cavities;

a plurality of staples removably stored in said staple cavities, wherein each said staple comprises;

a base;

a pair of legs extending from said base; and

a plane formed by said pair of legs, wherein at least one of said legs comprises at least one barb extending therefrom which extends transversely to the plane formed by said legs, and wherein each said leg comprises a tip configured to pierce tissue;

an anvil configured to deform said staples;

a staple driver system configured to lift said staples toward said anvil; and

a firing member configured to lift said staple driver system toward said anvil, wherein said firing member comprises a first portion configured to engage said anvil and a second portion configured to engage said cartridge, and wherein said firing member is configured to relatively position said anvil and said cartridge.

5. The end effector of claim 4, wherein said firing member comprises a knife edge.

6. The end effector of claim 4, wherein said firing member comprises at least one inclined surface configured to lift said drivers toward said anvil.