Compressible adjunct with crossing spacer fibers

Patent metadata

Field	Value
Publication number	US-11944308-B2
Application number	US-202218081335-A
Country	US
Kind code	B2
Filing date	Dec 14, 2022
Priority date	Sep 30, 2015
Publication date	Apr 2, 2024
Grant date	Apr 2, 2024

Abstract

A staple cartridge assembly for use with a surgical stapling instrument includes a staple cartridge including a plurality of staples and a cartridge deck. The staple cartridge assembly also includes a compressible adjunct positionable against the cartridge deck, wherein the staples are deployable into tissue captured against the compressible adjunct, and wherein the compressible adjunct comprises a first biocompatible layer comprising a first portion, a second biocompatible layer comprising a second portion, and crossed spacer fibers extending between the first portion and the second portion.

First claim

What is claimed is:

1. An adjunct, comprising:
a first layer to interface with a staple cartridge;
a second layer to interface with tissue, wherein the first layer and the second layer are configurable between:
an uncompressed state in which a first space is defined between the first layer and the second layer; and
a compressed state in which a second space less than the first space is defined between the first layer and the second layer; and

a support layer intermediate the first layer and the second layer, wherein the support layer comprises walls that define cavities within the support layer, and wherein the cavities are interconnected;
wherein the adjunct comprises a polymeric composition that comprises a pharmaceutical agent, wherein the pharmaceutical agent is to be released from the polymeric composition to effect tissue healing at a faster rate than without the pharmaceutical agent.

2. The adjunct of claim 1 , wherein the cavities extend longitudinally along the length of the support layer.

3. The adjunct of claim 1 , further comprising an attachment to couple to the first layer, the second layer, the support layer, and the staple cartridge.

4. The adjunct of claim 3 , wherein the adjunct comprises a first composition, and wherein the attachment comprises a second composition different than the first composition.

5. The adjunct of claim 3 , wherein the attachment comprises a tether to couple the adjunct to the staple cartridge.

6. The adjunct of claim 1 , wherein the walls define honeycomb shaped cavities.

7. The adjunct of claim 1 , wherein the first layer defines a first variable thickness, and wherein the second layer defines a second variable thickness.

8. The adjunct of claim 1 , wherein the pharmaceutical agent comprises a metalloproteinases (MMPs) inhibitor.

9. An adjunct, comprising:
a first layer to interface with a staple cartridge;
a second layer to interface with tissue; and
a support layer intermediate the first layer and the second layer, wherein the support layer defines cavities, and wherein the adjunct is configurable between:
an uncompressed state in which the cavities are a first height; and
a compressed state in which the cavities are a second height less than the first height;

wherein the adjunct comprises a polymeric composition that comprises a pharmaceutical agent, wherein the pharmaceutical agent is to be released from the polymeric composition to effect tissue healing at a faster rate than without the pharmaceutical agent.

10. The adjunct of claim 9 , wherein the cavities extend longitudinally along the length of the support layer.

11. The adjunct of claim 9 , further comprising an attachment to couple to the first layer, the second layer, the support layer, and the staple cartridge.

12. The adjunct of claim 11 , wherein the adjunct comprises a first composition, and wherein the attachment comprises a second composition different than the first composition.

13. The adjunct of claim 9 , wherein the cavities are honeycomb shaped cavities.

14. The adjunct of claim 9 , wherein the first layer defines a first variable thickness, and wherein the second layer defines a second variable thickness.

15. The adjunct of claim 9 , wherein the pharmaceutical agent comprises a metalloproteinases (MMPs) inhibitor.

16. A compressible adjunct, comprising:
a first layer to interface with a staple cartridge;
a second layer to interface with tissue; and
a hollow support layer intermediate the first layer and the second layer, wherein the hollow support layer defines interconnected cavities;
wherein the compressible adjunct comprises a polymeric composition that comprises a pharmaceutical agent, wherein the pharmaceutical agent is to be released from the polymeric composition to effect tissue healing at a faster rate than without the pharmaceutical agent.

17. The compressible adjunct of claim 16 , wherein the cavities extend longitudinally along the length of the support layer.

18. The compressible adjunct of claim 16 , wherein the cavities are honeycomb shaped cavities.

19. The compressible adjunct of claim 16 , wherein the first layer defines a first variable thickness, and wherein the second layer defines a second variable thickness.

20. The compressible adjunct of claim 16 , wherein the pharmaceutical agent comprises a metalloproteinases (MMPs) inhibitor.

Assignees

• Cilag Gmbh Int

Inventors

• Vendely Michael J
• Shelton Iv Frederick E
• Harris Jason L
• Scheib Charles J
• Goldrein Howell T
• Moir Robert S
• Consonni Sofia Maria
• Akram Ismail
• Easter Ashley D
• Latham Helen S

Classifications

• A61B17/105 Primary

  Wound clamp magazines (for packaging sharps A61B50/3001) · CPC title

• A61B17/00491

  Surgical glue applicators · CPC title

• A61B17/0644

  penetrating the tissue, deformable to closed position · CPC title

• A61B17/068

  Surgical staplers {, e.g. containing multiple staples or clamps}({staplers containing only one staple A61B17/10; magazines or containers for staples A61B17/105;} for performing anastomosis A61B17/115; {staplers in general B25C5/00}) · CPC title

• A61B17/072

  for applying a row of staples in a single action, e.g. the staples being applied simultaneously · CPC title