End effector comprising an adjunct

• US 10,390,823 B2
• Filed: 02/08/2013
• Issued: 08/27/2019
• Est. Priority Date: 02/15/2008
• Status: Active Grant

• Current Assignee: Cilag Gmbh International (Johnson & Johnson)
• Original Assignee: Ethicon, LLC (Johnson & Johnson)
• Inventors: Shelton, IV, Frederick E., Morgan, Jerome R.
• Primary Examiner(s): Desai, Hemant
• Assistant Examiner(s): Neacsu, Valentin
• Application Number:
  US13/763,147
• Publication Number:
  US 20130153636A1
• Time in Patent Office: 2,391 Days
• Field of Search: 2271761
• CPC Class Codes: A61B 17/0643 with separate closing member, e.g. for interlocking with staple
• 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 17/1155 Circular staplers comprising a plurality of staples
• CPC Class Codes: A61B 18/1445 at the distal end of a shaft, e.g. forceps or scissors at the end of a rigid rod
• CPC Class Codes: A61B 2017/00004 (bio)absorbable, (bio)resorbable, resorptive for implantable prostheses A61F2210/0004
• CPC Class Codes: A61B 2017/00473 Distal part, e.g. tip or head A61B2017/00464 takes precedence
• CPC Class Codes: A61B 2017/00477 Coupling A61B2017/0046 takes precedence
• CPC Class Codes: A61B 2017/005 hardenable using external energy source, e.g. laser, ultrasound
• CPC Class Codes: A61B 2017/00526 Methods of manufacturing
• CPC Class Codes: A61B 2017/0053 Loading magazines or sutures into applying tools
• CPC Class Codes: A61B 2017/00831 Material properties
• CPC Class Codes: A61B 2017/00893 pharmaceutically effective
• CPC Class Codes: A61B 2017/00964 composite
• CPC Class Codes: A61B 2017/07214 Stapler heads
• CPC Class Codes: A61B 2017/07228 Arrangement of the staples
• 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 2017/0725 : with settable gap between anvil and cartridge, e.g. for different staple heights at different shots
• 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: A61B 2017/2908 : Multiple segments connected by articulations
• CPC Class Codes: A61B 2017/2919 : details of linkages or pivot points
• CPC Class Codes: A61B 2017/2923 : Toothed members, e.g. rack and pinion
• CPC Class Codes: A61B 2017/2927 : the angular position of the head being adjustable with respect to the shaft
• CPC Class Codes: A61B 2017/2933 : camming or guiding means
• CPC Class Codes: A61B 2017/2936 : Pins in guiding slots
• CPC Class Codes: A61B 2017/2946 : Locking means
• CPC Class Codes: A61B 2018/00196 : reciprocating lengthwise
• CPC Class Codes: A61B 2018/1455 : having a moving blade for cutting tissue grasped by the jaws
• CPC Class Codes: A61B 2050/314 : Flexible bags or pouches
• CPC Class Codes: A61B 2090/034 : abutting on parts of the device itself
• CPC Class Codes: A61B 2090/037 : with a frangible part, e.g. by reduced diameter
• CPC Class Codes: A61B 50/30 : Containers specially adapted for packaging, protecting, dispensing, collecting or disposing of surgical or diagnostic appliances or instruments for wound clamps A61B17/10; for ligaturing clips A61B17/122; packages or dispensers for surgical gloves or finger-stalls A61B42/40

Abstract

An end effector comprising a staple cartridge and an anvil is disclosed. The staple cartridge comprises a cartridge body including a deck, a cartridge longitudinal slot configured to receive a cutting member, a first set of staple cavities, and a second set of staple cavities. The staple cartridge further comprises staples, longitudinal rows of staple drivers, and an implantable layer assembly releasably attached to the cartridge body. The implantable layer assembly comprises a first layer positioned over the first set of staple cavities and a second layer positioned over the second set of staple cavities. The anvil comprises a plurality of staple-forming pockets comprising a first set of staple-forming pockets and a second set of staple-forming pockets. The anvil further comprises an anvil longitudinal slot comprising a T-shaped opening configured to receive the cutting member. The T-shaped opening extends behind the first set of staple-forming pockets.

Claims

1. An end effector, comprising:

a staple cartridge, comprising;

a cartridge body, comprising;

a deck;

a cartridge longitudinal slot configured to receive a cutting member;

a first set of staple cavities defined in said deck; and

a second set of staple cavities defined in said deck, wherein said first set is different than said second set, and wherein said first set of staple cavities is positioned adjacent to said cartridge longitudinal slot;

a plurality of staples removably stored within said cartridge body, wherein said staples are ejectable from said cartridge body during a staple firing stroke;

longitudinal rows of staple drivers, wherein each said longitudinal row of staple drivers comprises a proximal end and a distal end, wherein said staple drivers are positioned at different heights relative to said deck prior to said staple firing stroke, and wherein said staple drivers are liftable toward said deck to sequentially deform said staples to different formed heights; and

an implantable layer assembly releasably attached to said cartridge body, comprising;

a first layer positioned over said first set of staple cavities; and

a second layer positioned over said second set of staple cavities,

wherein said first layer partially overlaps said second layer, and wherein said first layer covers more of said deck than said second layer; and

an anvil, comprising;

a plurality of staple-forming pockets comprising a first set of staple-forming pockets and a second set of staple-forming pockets; and

an anvil longitudinal slot comprising a T-shaped opening configured to receive said cutting member, wherein said T-shaped opening extends behind said first set of staple-forming pockets.

2. The end effector of claim 1, wherein said first set of staple cavities at least partially overlaps said second set of staple cavities.

3. The end effector of claim 1, wherein said first set of staple cavities comprises a first number of staple cavities, wherein said second set of staple cavities comprises a second number of staple cavities, and wherein said first number is different than said second number.

4. The end effector of claim 1, wherein longitudinal rows of staple cavities closest to said cartridge longitudinal slot are inner longitudinal rows of staple cavities and longitudinal rows of staple cavities further away from said cartridge longitudinal slot are outer longitudinal rows of staple cavities, wherein said first set of staple cavities comprises at least one inner longitudinal row of staple cavities, and wherein said second set of staple cavities comprises at least one outer longitudinal row of staple cavities.

5. The end effector of claim 4, wherein said second set of staple cavities further comprises at least one inner longitudinal row of staple cavities.

6. The end effector of claim 1, wherein said first set of staple cavities is not covered by said second layer.

7. An end effector, comprising:

a staple cartridge, comprising;

a cartridge body, comprising;

a deck;

a cartridge longitudinal slot configured to receive a cutting member;

a first set of staple cavities defined in said deck; and

a second set of staple cavities defined in said deck, wherein said first set is not identical to said second set, and wherein said first set of staple cavities is positioned adjacent to said cartridge longitudinal slot;

a plurality of staples removably stored within said cartridge body, wherein said staples are ejectable from said cartridge body during a progressive staple firing stroke;

longitudinal rows of staple drivers, wherein each said longitudinal row of staple drivers comprises a proximal end and a distal end, wherein said staple drivers are positioned at different heights relative to said deck prior to said staple firing stroke, and wherein said staple drivers are liftable toward said deck to sequentially deform said staples to different formed heights; and

an implantable layer assembly positioned over and releasably attached to said deck, wherein said implantable layer assembly comprises;

a first layer covering said first set of staple cavities; and

a second layer covering said second set of staple cavities, wherein said first layer partially overlaps said second layer, and wherein said first layer covers more of said deck than said second layer; and

an anvil, comprising;

a plurality of staple-forming pockets; and

an anvil longitudinal slot comprising a T-shaped opening configured to receive said cutting member, wherein said T-shaped opening extends behind said staple-forming pockets.

8. The end effector of claim 7, wherein said first set of staple cavities at least partially overlaps said second set of staple cavities.

9. The end effector of claim 7, wherein said first set of staple cavities comprises a first number of staple cavities, wherein said second set of staple cavities comprises a second number of staple cavities, and wherein said first number is different than said second number.

10. The end effector of claim 7, wherein longitudinal rows of staple cavities closest to said cartridge longitudinal slot are inner longitudinal rows of staple cavities and longitudinal rows of staple cavities further away from said cartridge longitudinal slot are outer longitudinal rows of staple cavities, wherein said first set of staple cavities comprises at least one inner longitudinal row of staple cavities, and wherein said second set of staple cavities comprises at least one outer longitudinal row of staple cavities.

11. The end effector of claim 10, wherein said second set of staple cavities further comprises at least one inner longitudinal row of staple cavities.

12. The end effector of claim 7, wherein said first set of staple cavities is not covered by said second layer.

13. An end effector, comprising:

a staple cartridge, comprising;

a cartridge body, comprising;

a cartridge longitudinal slot configured to receive a knife including a knife edge and a cam;

a first set of staple cavities; and

a second set of staple cavities, wherein said first set is not congruent with said second set, and wherein said first set of staple cavities is positioned adjacent to said cartridge longitudinal slot;

a plurality of staples removably stored within said cartridge body, wherein said staples are ejectable from said cartridge body during a staple firing stroke;

longitudinal rows of staple drivers, wherein each said longitudinal row of staple drivers comprises a proximal end and a distal end, wherein said staple drivers are positioned at different heights prior to said staple firing stroke, and wherein said staple drivers are liftable to sequentially deform said staples to different formed heights; and

an implantable layer assembly releasably attached to said cartridge body, comprising;

a first layer positioned over said first set of staple cavities; and

a second layer positioned over said second set of staple cavities; and

an anvil, comprising;

a plurality of staple-forming pockets comprising a first set of staple-forming pockets and a second set of staple-forming pockets; and

an anvil longitudinal slot, comprising;

a central portion aligned with said cartridge longitudinal slot configured to receive said knife edge; and

a lateral portion extending laterally from said central portion configured to receive said cam, wherein said lateral portion extends behind said first set of staple-forming pockets.

14. The end effector of claim 13, wherein said first set of staple cavities at least partially overlaps said second set of staple cavities.

15. The end effector of claim 13, wherein said first set of staple cavities comprises a first number of staple cavities, wherein said second set of staple cavities comprises a second number of staple cavities, and wherein said first number is different than said second number.

16. The end effector of claim 13, wherein said first layer at least partially overlaps said second layer.

17. The end effector of claim 13, wherein longitudinal rows of staple cavities closest to said cartridge longitudinal slot are inner longitudinal rows of staple cavities and longitudinal rows of staple cavities further away from said cartridge longitudinal slot are outer longitudinal rows of staple cavities, wherein said first set of staple cavities comprises at least one inner longitudinal row of staple cavities, and wherein said second set of staple cavities comprises at least one outer longitudinal row of staple cavities.

18. The end effector of claim 17, wherein said second set of staple cavities further comprises at least one inner longitudinal row of staple cavities.

19. The end effector of claim 13, wherein said first set of staple cavities is not covered by said second layer.