Implantable layers for surgical stapling devices

• US 10,265,074 B2
• Filed: 03/23/2016
• Issued: 04/23/2019
• Est. Priority Date: 09/30/2010
• Status: Active Grant

• Current Assignee: Cilag Gmbh International (Johnson & Johnson)
• Original Assignee: Ethicon, LLC (Johnson & Johnson)
• Inventors: Shelton, IV, Frederick E., Morgan, Jerome R., Baxter, III, Chester O.
• Primary Examiner(s): Chukwurah, Nathaniel C
• Application Number:
  US15/078,459
• Publication Number:
  US 20160199064A1
• Time in Patent Office: 1,126 Days
• Field of Search: 227 19, 2271761, 2271771, 2271791, 2271801
• 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 surgical instrument comprising a loading unit and an end effector is disclosed. The end effector comprises a first jaw, a second jaw, an anvil, a staple cartridge, a firing member, a first adjunct, a second adjunct, a first pair of restraint members, and a second pair of restraint members. The staple cartridge comprises a staple cartridge deck, staple cavities, staples, and staple drivers. The staple cartridge deck comprises a stepped profile. The first adjunct comprises a strain relief portion. The second adjunct comprises a strain relief portion configured to extend over the staple cartridge deck and a stepped profile that is fitted to the stepped profile of the staple cartridge deck. The first pair of restraint members are configured to releasably attach the first adjunct to the anvil. The second pair of restraint members are configured to releasably attach the second adjunct to the staple cartridge.

Claims

1. A surgical instrument comprising a loading unit and an end effector extending from said loading unit, wherein said end effector comprises:

a first jaw;

a second jaw moveable relative to said first jaw between an open position and a closed position;

an anvil;

a staple cartridge, comprising;

a staple cartridge deck, wherein said staple cartridge deck comprises a stepped profile;

a first row of staple cavities;

a second row of staple cavities;

a plurality of staples removably stored in said first row of staple cavities and said second row of staple cavities;

a first row of staple drivers configured to move from an unfired position to a fired position to deploy said plurality of staples in said first row of staple cavities; and

a second row of staple drivers configured to move from an unfired position to a fired position to deploy said plurality of staples in said second row of staple cavities, wherein said unfired position of said first row of staple drivers is different than said unfired position of said second row of staple drivers;

a firing member configured to move within said staple cartridge, wherein said firing member is configured to move said second jaw toward said closed position;

a first adjunct, comprising;

a proximal end portion;

a distal end portion; and

a strain relief portion;

a second adjunct, comprising;

a proximal end portion;

a distal end portion;

a strain relief portion configured to extend over said staple cartridge deck; and

a stepped profile that is fitted to said stepped profile of said staple cartridge deck;

a first pair of restraint members, wherein one of said first pair of restraint members is positioned on said proximal end portion of said first adjunct and the other of said first pair of restraint members is positioned on said distal end portion of said first adjunct, and wherein said first pair of restraint members are configured to releasably attach said first adjunct to said anvil; and

a second pair of restraint members, wherein one of said second pair of restraint members is positioned on said proximal end portion of said second adjunct and the other of said second pair of restraint members is positioned on said distal end portion of said second adjunct, and wherein said second pair of restraint members are configured to releasably attach said second adjunct to said staple cartridge.

2. The surgical instrument of claim 1, wherein one of said first adjunct and said second adjunct is comprised of a melt-blown material.

3. The surgical instrument of claim 1, wherein one of said first adjunct and said second adjunct is comprised of a non-woven material.

4. The surgical instrument of claim 1, wherein one of said first adjunct and said second adjunct is comprised of a fibrous material.

5. The surgical instrument of claim 4, wherein said fibrous material is bioabsorbable.

6. The surgical instrument of claim 1, wherein one of said first adjunct and said second adjunct is comprised of a bioabsorbable material selected from the group consisting of polyglycolic acid, polylactic acid, and polycaprolactone, and combinations thereof.

7. A surgical instrument comprising a loading unit and an end effector extending from said loading unit, wherein said end effector comprises:

a first jaw;

a second jaw moveable relative to said first jaw between an unclamped position and a clamped position;

an anvil defining a datum;

a staple cartridge, comprising;

a staple cartridge deck, wherein said staple cartridge deck comprises a stepped profile;

a first row of staple cavities;

a second row of staple cavities;

a plurality of staples removably stored in said first row of staple cavities and said second row of staple cavities;

a first row of staple drivers positioned a first distance from said anvil datum, wherein said first row of staple drivers are configured to deploy said staples from said first row of staple cavities; and

a second row of staple drivers positioned a second distance from said anvil datum, wherein said second row of staple drivers are configured to deploy said staples from said second row of staple cavities, and wherein said second distance is different than said first distance;

a camming member configured to move within said staple cartridge, wherein said camming member is configured to move said second jaw toward said clamped position;

a first adjunct, comprising;

a proximal end portion;

a distal end portion; and

an edge comprising a plurality of slits;

a second adjunct, comprising;

a proximal end portion;

a distal end portion;

an edge comprising a plurality of slits; and

a stepped profile that corresponds to said stepped profile of said staple cartridge deck;

a first restraint member positioned on said proximal end portion of said first adjunct;

a second restraint member positioned on said distal end portion of said first adjunct, wherein said first restraint member and said second restraint member are configured to releasably attach said first adjunct to said anvil;

a third restraint member positioned on said proximal end portion of said second adjunct; and

a fourth restraint member positioned on said distal end portion of said second adjunct, wherein said third restraint member and said fourth restraint member are configured to releasably attach said second adjunct to said staple cartridge.

8. The surgical instrument of claim 7, wherein one of said first adjunct and said second adjunct is comprised of a melt-blown material.

9. The surgical instrument of claim 7, wherein one of said first adjunct and said second adjunct is comprised of a non-woven material.

10. The surgical instrument of claim 7, wherein one of said first adjunct and said second adjunct is comprised of a fibrous material.

11. The surgical instrument of claim 10, wherein said fibrous material is bioabsorbable.

12. The surgical instrument of claim 7, wherein one of said first adjunct and said second adjunct is comprised of a bioabsorbable material selected from the group consisting of polyglycolic acid, polylactic acid, and polycaprolactone, and combinations thereof.

13. A surgical instrument comprising a loading unit and an end effector extending from said loading unit, wherein said end effector comprises:

a first jaw;

a second jaw moveable relative to said first jaw between an open position and a closed position;

an anvil;

a staple cartridge, comprising;

a staple cartridge deck, wherein said staple cartridge deck comprises a stepped profile;

a plurality of staple cavities;

a plurality of staples removably stored in said staple cavities; and

a plurality of staple drivers configured to eject said plurality of staples from said staple cavities, wherein said plurality of staple drivers are arranged in a stepped profile that corresponds to said stepped profile of said staple cartridge deck;

a firing member configured to move within said staple cartridge, wherein said firing member is configured to move said second jaw toward said closed position;

a first adjunct positioned on said anvil, comprising;

a proximal end portion;

a distal end portion; and

a strain relief portion;

a second adjunct positioned on said staple cartridge, comprising;

a proximal end portion;

a distal end portion;

a strain relief portion configured to extend over said staple cartridge deck; and

a stepped profile that corresponds to said stepped profile of said staple cartridge deck; and

a pair of restraint members, wherein one of said pair of restraint members is positioned on said proximal end portion of said second adjunct and the other of said pair of restraint members is positioned on said distal end portion of said second adjunct, and wherein said pair of restraint members are configured to releasably attach said second adjunct to said staple cartridge.

14. The surgical instrument of claim 13, wherein one of said first adjunct and said second adjunct is comprised of a melt-blown material.

15. The surgical instrument of claim 13, wherein one of said first adjunct and said second adjunct is comprised of a non-woven material.

16. The surgical instrument of claim 13, wherein one of said first adjunct and said second adjunct is comprised of a fibrous material.

17. The surgical instrument of claim 16, wherein said fibrous material is bioabsorbable.

18. The surgical instrument of claim 13, wherein one of said first adjunct and said second adjunct is comprised of a bioabsorbable material selected from the group consisting of polyglycolic acid, polylactic acid, and polycaprolactone, and combinations thereof.