Staple cartridge comprising an implantable layer

• US 10,335,150 B2
• Filed: 06/29/2015
• Issued: 07/02/2019
• 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.
• Primary Examiner(s): Chukwurah, Nathaniel C
• Application Number:
  US14/754,236
• Publication Number:
  US 20150374376A1
• Time in Patent Office: 1,464 Days
• Field of Search: 2271751, 2271761, 227 19, 2271801, 606139, 606219, 606153
• 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 17/07207 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 17/3209 Incision instruments
• CPC Class Codes: A61B 2017/00115 with audible or visual output with imaging means A61B90/37, A61B34/20
• CPC Class Codes: A61B 2017/07235 containing different staples, e.g. staples of different shapes, sizes or materials
• 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 2017/07257 characterised by its anvil
• CPC Class Codes: A61B 2017/07271 characterised by its cartridge
• CPC Class Codes: A61B 2017/2933 camming or guiding means
• CPC Class Codes: A61B 2090/0807 Indication means

Abstract

A Staple cartridge assembly for stapling patient tissue is disclosed comprising a staple cartridge including a deck. The deck includes a plurality of staple cavities and is configured to support the tissue. The staple cartridge assembly further includes a plurality of staples removably stored in the staple cavities and an implantable layer positioned adjacent to the deck. The implantable layer comprises a composite absorbable material, wherein the composite absorbable material comprises at least two distinct fibrous materials. At least one freeze-dried medicament is releasably held on at least one of the fibrous materials. The staple cartridge assembly further includes a liquid impermeable film wrapped around the staple cartridge and the implantable layer.

Claims

1. A staple cartridge assembly for stapling patient tissue, comprising:

a staple cartridge including a deck, wherein said deck comprises a plurality of staple cavities, and wherein said deck is configured to support the tissue;

a plurality of staples removably stored in said staple cavities;

an implantable layer positioned adjacent to said deck, wherein said implantable layer comprises a composite absorbable material, wherein said composite absorbable material comprises at least two distinct fibrous materials, and wherein at least one freeze-dried medicament is releasably held on at least one of said fibrous materials; and

a liquid impermeable film wrapped around said staple cartridge and said implantable layer.

2. The staple cartridge assembly of claim 1, wherein said at least one freeze-dried medicament comprises thrombin.

3. The staple cartridge assembly of claim 1, wherein said at least one freeze-dried medicament comprises fibrin.

4. The staple cartridge assembly of claim 1, wherein said at least one freeze-dried medicament is activatable to treat the tissue when exposed to a liquid.

5. The staple cartridge assembly of claim 1, wherein said at least two distinct fibrous materials comprise a polyglycolic acid material, and wherein said at least one freeze-dried medicament is releasably held within a polyglycolic acid matrix.

6. The staple cartridge assembly of claim 1, wherein said at least two distinct fibrous materials comprise polyglycolic acid and oxidized regenerated cellulose.

7. The staple cartridge assembly of claim 1, wherein said at least one freeze-dried medicament is releasably held on said at least one of said fibrous materials as a coating.

8. The staple cartridge assembly of claim 1, wherein said liquid impermeable film comprises a composite film, and wherein said composite film is configured to remain impermeable until penetrated by said staples.

9. The staple cartridge assembly of claim 1, wherein said implantable layer further comprises a buttress material.

10. The staple cartridge assembly of claim 1, wherein said implantable layer is configured to compensate for a thickness of the tissue being stapled.

11. An end effector, comprising:

a first jaw;

a second jaw, wherein at least one of said first jaw and said second jaw is movable to compress tissue between said first jaw and said second jaw; and

a staple cartridge assembly, comprising;

a staple cartridge including a tissue-supporting surface, wherein said tissue-supporting surface comprises a plurality of staple slots;

a plurality of staples releasably stored in said staple slots;

an implantable layer assembly positioned adjacent to said tissue-supporting surface, wherein said implantable layer assembly comprises a composite absorbable material, wherein said composite absorbable material comprises at least two distinct fiber materials, and wherein at least one freeze-dried medicament is releasably attached to at least one of said fiber materials; and

a removable wrap extending around said implantable layer assembly.

12. The end effector of claim 11, wherein said at least one freeze-dried medicament comprises thrombin.

13. The end effector of claim 11, wherein said at least one freeze-dried medicament comprises fibrin.

14. The end effector of claim 11, wherein said at least one freeze-dried medicament is activatable to treat the tissue when exposed to a liquid.

15. The end effector of claim 11, wherein said at least two distinct fiber materials comprise a polyglycolic acid material, and wherein said at least one freeze-dried medicament is releasably attached to a polyglycolic acid matrix.

16. The end effector of claim 11, wherein said at least two distinct fiber materials comprise polyglycolic acid and oxidized regenerated cellulose.

17. The end effector of claim 11, wherein said at least one freeze-dried medicament is releasably attached to said at least one of said fiber materials as a coating.

18. An end effector, comprising:

a first jaw;

a second jaw, wherein at least one of said first jaw and said second jaw is movable to compress tissue between said first jaw and said second jaw; and

a staple cartridge assembly, comprising;

a staple cartridge including a tissue-supporting surface, wherein said tissue-supporting surface comprises a plurality of staple slots;

a plurality of staples releasably stored in said staple slots; and

an implantable layer assembly positioned adjacent to said tissue-supporting surface, wherein said implantable layer assembly comprises a composite absorbable material, wherein said composite absorbable material comprises at least two distinct fiber materials, and wherein at least one freeze-dried medicament is releasably attached to at least one of said fiber materials, further comprising a liquid impermeable film wrapped around said staple cartridge assembly, wherein said liquid impermeable film comprises a composite film, and wherein said composite film is configured to remain impermeable until penetrated by said staples.

19. A staple cartridge assembly for stapling patient tissue, comprising:

a staple cartridge including a deck, wherein said deck comprises a plurality of staple cavities, and wherein said deck is configured to support the tissue;

a plurality of staples removably stored in said staple cavities;

an implantable layer positioned adjacent to said deck, wherein said implantable layer comprises a composite absorbable material, wherein said composite absorbable material comprises at least two distinct fiber materials, and wherein at least one freeze-dried medicament is embedded in at least one of said fiber materials; and

a removable water impermeable enclosure enclosing said implantable layer.