FASTENER CARTRIDGE COMPRISING A FIRING MEMBER CONFIGURED TO DIRECTLY ENGAGE AND EJECT FASTENERS FROM THE FASTENER CARTRIDGE

• US 20150173761A1
• Filed: 12/23/2013
• Published: 06/25/2015
• Est. Priority Date: 12/23/2013
• Status: Active Grant

• Current Assignee: Cilag Gmbh International (Johnson & Johnson)
• Original Assignee: Ethicon Endo-Surgery, Inc. (Johnson & Johnson)
• Inventors: Shelton, Frederick E. IV, Baxter, Chester O. III, Dunki-Jacobs, Adam R.
• Granted Patent: US 9,763,662 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• 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 17/0682 for applying U-shaped staples or clamps, e.g. without a forming anvil
• CPC Class Codes: A61B 17/0686 having a forming anvil staying below the tissue during stapling
• 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 17/105 Wound clamp magazines for packaging sharps A61B50/3001
• CPC Class Codes: A61B 2017/00398 using powered actuators, e.g. stepper motors, solenoids
• CPC Class Codes: A61B 2017/00526 Methods of manufacturing
• CPC Class Codes: A61B 2017/00734 battery operated
• CPC Class Codes: A61B 2017/07228 Arrangement of the staples
• CPC Class Codes: A61B 2017/07257 characterised by its anvil
• 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: A61B 34/37 Master-slave robots A61B34/35 takes precedence
• CPC Class Codes: Y10T 29/49995 Shaping one-piece blank by removing material

Abstract

A fastener cartridge can comprise a cartridge body including a deck and a plurality of fastener cavities, wherein each fastener cavity includes an opening in the deck. The fastener cartridge can further comprise a plurality of fasteners, wherein each fastener is at least partially stored within a fastener cavity and a firing member movable between a first position and a fired position to eject the fasteners from the fastener cavities. The firing member can comprise a ramp configured to directly engage the fasteners and lift each fastener between an unlifted position and a lifted position, and wherein the lifted position is located completely above the deck. The fastener cartridge can further comprise an anvil wherein the ramp is configured to overdrive the fasteners against the anvil.

Claims

1. A fastener cartridge assembly for use with a surgical fastening instrument, wherein said fastening instrument comprises an anvil, and wherein said fastener cartridge assembly comprises:

a cartridge body, comprising;

a deck;

a plurality of fastener cavities, wherein each said fastener cavity includes an opening in said deck;

a plurality of fasteners removably stored within said fastener cavities; and

a sled movable between an unfired position and a fired position to lift said fasteners toward the anvil, wherein said sled comprises a ramp configured to lift each said fastener between an unlifted position and a lifted position, and wherein said ramp comprises an apex which extends above at least a portion of said deck.

2. The fastener cartridge assembly of claim 1, wherein said plurality of fastener cavities are arranged in a longitudinal row, wherein said cartridge body further comprises a longitudinal ramp slot, and wherein said ramp is configured to slide within said longitudinal ramp slot.

3. The fastener cartridge assembly of claim 2, wherein said longitudinal ramp slot is in communication with said fastener cavities in said longitudinal row, and wherein said ramp is configured to slide through said fastener cavities when sliding through said longitudinal ramp slot.

4. The fastener cartridge assembly of claim 3, wherein said cartridge body further comprises a plurality of arches extending over said longitudinal ramp slot, and wherein said apex is configured to slide under said arches.

5. The fastener cartridge assembly of claim 4, wherein said arches are positioned intermediate said fastener cavities in said longitudinal row.

6. The fastener cartridge assembly of claim 2, wherein said longitudinal row of fastener cavities comprises a first longitudinal row, wherein said ramp comprises a first ramp, wherein said sled comprises a second ramp including a second apex, wherein said fastener cartridge assembly further comprises:

a longitudinal row of second fastener cavities; and

a plurality of second fasteners removably stored within said second fastener cavities, wherein said second ramp is configured to lift each said second fastener between an unlifted position and a lifted position, and wherein said second ramp comprises a second apex which extends above at least a portion of said deck.

7. The fastener cartridge assembly of claim 6, wherein said cartridge body further comprises a second longitudinal ramp slot, and wherein said second ramp is configured to slide within said second longitudinal ramp slot.

8. The fastener cartridge assembly of claim 7, wherein said second longitudinal ramp slot is in communication with said second fastener cavities, and wherein said second ramp is configured to slide through said second fastener cavities when sliding through said second longitudinal ramp slot.

9. A fastener cartridge assembly, comprising:

a cartridge body, comprising;

a deck;

a plurality of fastener cavities, wherein each said fastener cavity includes an opening in said deck;

a plurality of fasteners, wherein each said fastener is at least partially stored within a said fastener cavity; and

a firing member movable between a first position and a fired position to completely eject said fasteners from said fastener cavities, wherein said firing member comprises a ramp configured to directly lift each said fastener between an unlifted position and a lifted position, and wherein said ramp comprises an apex which extends above said openings.

10. The fastener cartridge assembly of claim 9, wherein said fasteners are completely ejected from said openings when said fasteners are lifted to said lifted position.

11. The fastener cartridge assembly of claim 9, wherein said apex is configured to overdrive said fasteners.

12. The fastener cartridge assembly of claim 9, wherein said plurality of fastener cavities are arranged in a longitudinal row, wherein said cartridge body further comprises a longitudinal ramp slot, and wherein said ramp is configured to slide within said longitudinal ramp slot.

13. The fastener cartridge assembly of claim 12, wherein said longitudinal ramp slot is in communication with said fastener cavities in said longitudinal row, and wherein said ramp is configured to slide through said fastener cavities when sliding through said longitudinal ramp slot.

14. The fastener cartridge assembly of claim 13, wherein said cartridge body further comprises a plurality of arches extending over said longitudinal ramp slot, and wherein said apex is configured to slide under said arches.

15. The fastener cartridge assembly of claim 14, wherein said arches are positioned intermediate said fastener cavities in said longitudinal row.

16. The fastener cartridge assembly of claim 12, wherein said longitudinal row of fastener cavities comprises a first longitudinal row, wherein said ramp comprises a first ramp, wherein said sled comprises a second ramp including a second apex, wherein said fastener cartridge assembly further comprises:

a longitudinal row of second fastener cavities, wherein each said second fastener cavity comprises a second opening in said deck; and

a plurality of second fasteners removably stored within said second fastener cavities, wherein said second ramp is configured to lift each said second fastener between an unlifted position and a lifted position, and wherein said second ramp comprises a second apex which extends above said second openings.

17. The fastener cartridge assembly of claim 16, wherein said cartridge body further comprises a second longitudinal ramp slot, and wherein said second ramp is configured to slide within said second longitudinal ramp slot.

18. The fastener cartridge assembly of claim 17, wherein said second longitudinal ramp slot is in communication with said second fastener cavities, and wherein said second ramp is configured to slide through said second fastener cavities when sliding through said second longitudinal ramp slot.

19. The fastener cartridge assembly of claim 9, further comprising an anvil.

20. A fastener cartridge assembly, comprising:

a cartridge body, comprising;

a deck;

a plurality of fastener cavities, wherein each said fastener cavity includes an opening in said deck;

a plurality of fasteners, wherein each said fastener is at least partially stored within a said fastener cavity; and

a firing member movable between a first position and a fired position to eject said fasteners from said fastener cavities, wherein said firing member comprises a ramp configured to directly engage said fasteners and lift each said fastener between an unlifted position and a lifted position, and wherein said lifted position is located completely above said deck.

21. The fastener cartridge assembly of claim 20, further comprising an anvil, and wherein said ramp is configured to overdrive said fasteners against said anvil.