SURGICAL END EFFECTOR HAVING BUTTRESS RETENTION FEATURES

• US 20150076208A1
• Filed: 11/21/2014
• Published: 03/19/2015
• Est. Priority Date: 02/15/2008
• Status: Abandoned Application

• Current Assignee: Cilag Gmbh International (Johnson & Johnson)
• Original Assignee: Ethicon Endo-Surgery, Inc. (Johnson & Johnson)
• Inventors: Shelton, Frederick E. IV
• Application Number:
  US14/549,976
• Publication Number:
  US 20150076208A1
• Time in Patent Office: Days
• US Class Current: 227/176.1
• 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

A piece of buttress material and an end-effector of a surgical instrument including features which can aid a surgeon in properly and quickly attaching the piece of buttress material to the end-effector. In various embodiments, a piece of buttress material can include retention features which can be engaged with portions of an end-effector to releasably retain the piece of buttress material to at least a portion of the end-effector. Similarly, an end-effector can include features configured to engage portions of a piece of buttress material to releasably retain the piece of buttress material to the end-effector. In at least one embodiment, more than one piece of buttress material can be releasably retained to an end-effector.

Claims

1-16. -16. (canceled)

17. A staple cartridge, comprising:

a cartridge body comprising a deck, wherein a plurality of staple cavities are defined in the cartridge body;

a plurality of staples removably positioned in the staple cavities; and

a compressible portion, comprising;

a deck-contacting surface; and

a plurality of protrusions protruding from the deck-contacting surface into the staple cavities, wherein at least one of the protrusions is friction-fit in one of the staple cavities.

18. The staple cartridge of claim 17, wherein the compressible portion comprises a tissue thickness compensator.

19. The staple cartridge of claim 17, wherein the compressible portion comprises a piece of buttress material.

20. The staple cartridge of claim 17, wherein the compressible portion comprises a planar body, and wherein the protrusions protrude from the planar body.

21. The staple cartridge of claim 17, wherein each protrusion comprises an outer perimeter, wherein each staple cavity comprises an inner perimeter, and wherein the outer perimeter of each protrusion complements the inner perimeter of the staple cavity into which the protrusion extends.

22. The staple cartridge of claim 21, wherein at least one outer perimeter comprises a hexagonal outer perimeter, and wherein the corresponding inner perimeter comprises a hexagonal inner perimeter.

23. The staple cartridge of claim 21, wherein at least one outer perimeter comprises:

a proximal tip;

a distal tip; and

a pair of lateral sides extending between the proximal tip and the distal tip.

24. An end effector, comprising:

a staple cartridge, comprising;

a cartridge body comprising a plurality of staple cavities; and

a plurality of staples removably positioned in the staple cavities;

an anvil comprising a plurality of staple-forming pockets; and

a compressible portion, comprising;

an cartridge-contacting surface; and

a plurality of protrusions protruding from the cartridge-contacting surface into the staple cavities, wherein at least one of the protrusions is friction-fit in one of the staple cavities.

25. The end effector of claim 24, wherein the compressible portion comprises a tissue thickness compensator.

26. The end effector of claim 24, wherein the compressible portion comprises a piece of buttress material.

27. The end effector of claim 24, wherein each protrusion comprises an outer perimeter, wherein each staple cavity comprises an inner perimeter, and wherein the outer perimeter of each protrusion complements the inner perimeter of the staple cavity into which the protrusion extends.

28. The end effector of claim 27, wherein at least one outer perimeter comprises a hexagonal outer perimeter, and wherein the corresponding inner perimeter comprises a hexagonal inner perimeter.

29. The end effector of claim 27, wherein at least one outer perimeter comprises:

a proximal tip;

a distal tip; and

a pair of lateral sides extending between the proximal tip and the distal tip.

30. An end effector, comprising:

a staple cartridge comprising a plurality of deployable staples;

an anvil comprising an anvil face, wherein a plurality of staple-forming pockets are defined into the anvil face; and

a compressible portion, comprising;

an anvil-contacting surface; and

a plurality of protrusions protruding from the anvil-contacting surface into the staple-forming pockets, wherein at least one of the protrusions is friction-fit in one of the staple-forming pockets.

31. The end effector of claim 30, wherein the compressible portion comprises a tissue thickness compensator.

32. The end effector of claim 30, wherein the compressible portion comprises a piece of buttress material.

33. The end effector of claim 30, wherein each protrusion comprises an outer perimeter, wherein each staple cavity comprises an inner perimeter, and wherein the outer perimeter of each protrusion complements the inner perimeter of the staple cavity into which the protrusion extends.

34. A staple cartridge, comprising:

a cartridge body, comprising;

a deck;

a plurality of staple cavities defined in the cartridge body; and

a longitudinal slot defined at least partially through the cartridge body, wherein the longitudinal slot comprises a plurality of lateral recesses extending laterally from the longitudinal slot;

a plurality of staples removably positioned in the staple cavities; and

a compressible portion, comprising;

a deck-contacting surface; and

a plurality of protrusions protruding from the deck-contacting surface into the lateral recesses.

35. The staple cartridge of claim 34, wherein the compressible portion comprises a tissue thickness compensator.

36. The staple cartridge of claim 34, wherein the compressible portion comprises a piece of buttress material.