Buttress composition

• US 9,931,116 B2
• Filed: 01/24/2013
• Issued: 04/03/2018
• Est. Priority Date: 02/10/2012
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Racenet, Danyel, Bennett, Steven L., Carlson, Erik, Whitfield, Kenneth H., Krehel, Gregg
• Primary Examiner(s): Yuan, Dah-Wei D
• Assistant Examiner(s): BOWMAN, ANDREW J
• Application Number:
  US13/748,684
• Publication Number:
  US 20130209659A1
• Time in Patent Office: 1,895 Days
• Field of Search: 424424, 623 115, 2271761
• CPC Class Codes: A61B 17/0644 penetrating the tissue, deformable to closed position
• CPC Class Codes: A61B 17/07292 Reinforcements for staple line, e.g. pledgets
• CPC Class Codes: A61L 31/145 Hydrogels or hydrocolloids

Abstract

A tissue buttress is provided on at least a first and second jaw of a surgical stapling apparatus. The tissue buttress comprises an electrophilic component and a nucleophilic component. At least a portion of the tissue buttress may be disposed within either or both of the staple pockets and staple forming pockets, securing the tissue buttress to at least one of the staple jaws.

Claims

1. A method of making a tissue buttress comprising the steps of:

applying a hydrogel comprising an electrophilic component and a nucleophilic component to at least one of a first jaw and a second jaw of a surgical stapler,

allowing the electrophilic component and the nucleophilic component to react to form the hydrogel; and

lyophilizing the hydrogel disposed on at least one of the first jaw and the second jaw of the surgical stapler to form a tissue buttress.

2. The method of claim 1, wherein lyophilizing the hydrogel at least temporarily secures the buttress to at least one of the first jaw and the second jaw.

3. The method of claim 1, wherein at least one of the first jaw and the second jaw define staple pockets for retaining staples.

4. The method of claim 3, wherein a portion of the buttress is at least partially disposed within at least one staple pocket.

5. The method of claim 1, wherein the electrophilic component comprises N-hydroxysuccinimide.

6. The method of claim 1, wherein the nucleophilic component comprises a natural component.

7. The method of claim 1, wherein the nucleophilic component comprises albumin having a molecular weight of from about 60,000 g/mol to about 70,000 g/mol.

8. The method of claim 1, wherein the electrophilic component further comprises polyethylene glycol.

9. The method of claim 1, wherein the electrophilic component comprises multiple arms.

10. The method of claim 1, wherein the electrophilic component is applied to one of the first jaw and the second jaw and the nucleophilic component is applied to the other of the first jaw and the second jaw.

19. The method of claim 1, wherein the tissue buttress provides hemostasis in situ.

11. A method of making a tissue buttress comprising the steps of:

applying a polymer composition comprising an electrophilic component and a nucleophilic component to at least one of a staple anvil and a staple cartridge;

allowing the electrophilic component and the nucleophilic component to react to form the polymer composition disposed on at least one of the staple anvil and staple cartridge; and

,

lyophilizing the polymer composition to create a tissue buttress.

12. The method of claim 11, wherein lyophilizing the polymer composition at least temporarily secures the buttress to at least one of the staple anvil and staple cartridge.

13. The method of claim 11, wherein the electrophilic component comprises N-hydroxysuccinimide.

14. The method of claim 11, wherein the nucleophilic component comprises a natural component.

15. The method of claim 11, wherein the nucleophilic component comprises albumin having a molecular weight of from about 60,000 g/mol to about 70,000 g/mol.

16. The method of claim 11, wherein the electrophilic component further comprises polyethylene glycol.

17. The method of claim 11, wherein the electrophilic component comprises multiple arms.

18. The method of claim 11, wherein the electrophilic component is applied to at least one of the staple anvil and the staple cartridge and the nucleophilic component is applied to the other of the staple anvil and the staple cartridge.

20. The method of claim 11, wherein the tissue buttress provides hemostasis in situ.