FASTENER CARTRIDGE ASSEMBLY COMPRISING A FIXED ANVIL

• US 20130334283A1
• Filed: 08/15/2013
• Published: 12/19/2013
• Est. Priority Date: 08/31/2005
• Status: Abandoned Application

• Current Assignee: Cilag Gmbh International (Johnson & Johnson)
• Original Assignee: Ethicon Endo-Surgery, Inc. (Johnson & Johnson)
• Inventors: Swayze, Jeffrey S., Hueil, Joseph C., Morgan, Jerome R., Shelton, Frederick E. IV
• Application Number:
  US13/967,388
• Publication Number:
  US 20130334283A1
• Time in Patent Office: Days
• US Class Current: 227/180.1
• CPC Class Codes: A61B 17/0644 penetrating the tissue, deformable to closed position
• CPC Class Codes: A61B 17/0682 for applying U-shaped staples or clamps, e.g. without a forming anvil
• 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 17/115 Staplers for performing anastomosis in a single operation
• CPC Class Codes: A61B 17/32053 Punch like cutting instruments, e.g. using a cylindrical or oval knife A61B17/326 takes precedence; trepans A61B17/1695; for use on the cornea A61F9/007
• 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 2017/07264 characterised by its staple forming cavities, e.g. geometry or material
• CPC Class Codes: A61B 2017/07278 characterised by its sled or its staple holder
• CPC Class Codes: A61B 2017/320052 Guides for cutting instruments by marking A61B2090/395
• CPC Class Codes: B25C 5/0292 with the objects to be stapled together introduced perpendicularly to the longitudinal axis of the tool in an opening formed by an anvil and a plunger

Abstract

A surgical stapling device that comprises an end effector. According to various embodiments, the end effector comprises a circular anvil having a staple forming surface and a plurality of staples facing the staple forming surface of the anvil. The end effector also comprises a staple driver assembly comprising a plurality of staple drivers. Each staple driver supports one of the plurality of staples and is configured such that, when the staple driver assembly is actuated, each staple driver drives the staple into the staple forming surface of the anvil. A first quantity of the plurality of staple drivers has a first height and a second quantity of the plurality of staple drivers has a second height, wherein the first height is less than the second height.

Claims

1. An end effector for a surgical fastening instrument, said end effector comprising:

a first jaw, comprising;

a cartridge body;

a plurality of fastener cavities defined in said cartridge body;

a first longitudinal slot configured to receive a firing member;

a longitudinal row of first fasteners removably stored in said cartridge body, wherein each said first fastener comprises;

a base;

a first leg extending from said base in a first direction; and

a second leg extending from said base in a second direction, wherein said first direction is not parallel to said second direction; and

a longitudinal row of second fasteners removably stored in said cartridge body, wherein said row of second fasteners extends alongside said row of first fasteners; and

a second jaw, wherein said second jaw comprises;

an anvil configured to deform said first fasteners to a first fired height and said second fasteners to a second fired height in co-operation with said firing member, wherein said first fired height is different than said second fired height, and wherein said cartridge body is movable toward said anvil; and

a second longitudinal slot configured to receive the firing member, wherein said first longitudinal slot is alignable with said second longitudinal slot.

2. The end effector of claim 1, wherein said first fired height is shorter than said second fired height.

3. The end effector of claim 1, further comprising a knife slidably positionable in said first longitudinal slot and said second longitudinal slot.

4. The end effector of claim 3, wherein said cartridge body comprises a proximal end and a distal end, and wherein said knife is slidable longitudinally between said proximal end and said distal end.

5. The end effector of claim 1, wherein each said second staple comprises a base, a first leg, and a second leg which extends non-parallely to said first leg.

6. The end effector of claim 1, wherein said row of first fasteners includes a first distal-most fastener, wherein said row of second fasteners includes a second distal-most fastener, and wherein said first distal-most fastener is positioned distally with respect to said second distal-most fastener.

7. An end effector for a surgical fastening instrument, said end effector comprising:

a first jaw, comprising;

a cartridge body;

a plurality of fastener cavities defined in said cartridge body;

a first knife slot configured to receive a knife;

a row of first fasteners removably stored in said cartridge body, wherein each said first fastener comprises;

a base;

a first leg extending from said base in a first direction; and

a second leg extending from said base in a second direction, wherein said first direction is not parallel to said second direction; and

a row of second fasteners removably stored in said cartridge body, wherein said row of second fasteners extends alongside said row of first fasteners; and

a second jaw, wherein said second jaw comprises;

an anvil configured to deform said first fasteners to a first fired height and said second fasteners to a second fired height, wherein said first fired height is different than said second fired height, and wherein said cartridge body is movable toward said anvil; and

a second knife slot configured to receive the firing member, wherein said first knife slot is alignable with said second knife slot.

8. The end effector of claim 7, wherein said first fired height is shorter than said second fired height.

9. The end effector of claim 7, further comprising a knife slidably positionable in said first knife slot and said second knife slot.

10. The end effector of claim 9, wherein said cartridge body comprises a proximal end and a distal end, and wherein said knife is slidable longitudinally between said proximal end and said distal end.

11. The end effector of claim 7, wherein each said second staple comprises a base, a first leg, and a second leg which extends non-parallely to said first leg.

12. The end effector of claim 7, wherein said row of first fasteners includes a first distal-most fastener, wherein said row of second fasteners includes a second distal-most fastener, and wherein said first distal-most fastener is positioned distally with respect to said second distal-most fastener.

13. An end effector for a surgical stapling instrument, said end effector comprising:

a first jaw;

a second jaw, wherein said second jaw is pivotable relative to said first jaw;

a staple cartridge assembly, comprising

a cartridge body;

a plurality of staple cavities defined in said cartridge body;

a first knife slot configured to receive a knife;

a row of first staples removably stored in said cartridge body, wherein each said first staple comprises;

a base;

a first leg extending from said base in a first direction; and

a second leg extending from said base in a second direction, wherein said first direction is not parallel to said second direction; and

a row of second staples removably stored in said cartridge body, wherein said row of second staples extends alongside said row of first staples; and

an anvil configured to deform said first staples to a first fired height and said second staples to a second fired height, wherein said first fired height is different than said second fired height, and wherein said cartridge body is movable toward said anvil.

14. The end effector of claim 13, wherein said first fired height is shorter than said second fired height.

15. The end effector of claim 13, further comprising a knife slidably positionable in said first knife slot.

16. The end effector of claim 15, wherein said cartridge body comprises a proximal end and a distal end, and wherein said knife is slidable longitudinally between said proximal end and said distal end.

17. The end effector of claim 13, wherein each said second staple comprises a base, a first leg, and a second leg which extends non-parallely to said first leg.

18. The end effector of claim 13, wherein said row of first staples includes a first distal-most staple, wherein said row of second staples includes a second distal-most staple, and wherein said first distal-most staple is positioned distally with respect to said second distal-most staple.