Seal element for anastomosis

• US 9,028,528 B2
• Filed: 02/20/2014
• Issued: 05/12/2015
• Est. Priority Date: 10/15/2004
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Bettuchi, Michael J., Criscuolo, Christopher J., Kennedy, John J., Fowler, David N., Hadba, Ahmad Robert
• Primary Examiner(s): SEVERSON, RYAN J
• Application Number:
  US14/185,162
• Publication Number:
  US 20140166719A1
• Time in Patent Office: 446 Days
• Field of Search: 606153-155, 227/175.1, 227/179.1
• US Class Current: 606/214
• 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 17/07292 Reinforcements for staple line, e.g. pledgets
• CPC Class Codes: A61B 17/11 for performing anastomosis; Buttons for anastomosis
• CPC Class Codes: A61B 17/115 Staplers for performing anastomosis in a single operation
• CPC Class Codes: A61B 17/1152 applying the staples on the outside of the lumen
• CPC Class Codes: A61B 17/1155 Circular staplers comprising a plurality of staples
• CPC Class Codes: A61B 2017/07214 Stapler heads

Abstract

A seal element for sealing between tissue lumens includes a first material for allowing tissue ingrowth and a second sealant material.

Claims

1. An assembly for disposing a seal element between tissue lumens comprising:

a circular surgical stapling device comprising an anvil assembly and a tubular body portion wherein the anvil assembly comprises an anvil member and a first shaft and the tubular body portion comprises a plurality of surgical staples in a circular configuration and a second shaft disposed inwardly of the surgical staples, the first shaft being attachable to the second shaft; and

a seal element disposable between the tissue lumens, the seal element comprising an inner first material comprising pores and an outer second material which expands upon contact with fluids, wherein the outer second material at least partially overlaps the inner first material.

2. The assembly of claim 1 wherein the inner first material extends into the outer second material.

3. The assembly of claim 1 wherein the inner first material is thinner than the outer second material.

4. The assembly of claim 3 wherein the inner first material is about 0.010″

to about 0.020″

thick.

5. The assembly of claim 1 wherein the inner first material comprises pores ranging in size from about 50 μ

m to about 200 μ

m.

6. The assembly of claim 1 wherein the inner first material is bioabsorbable.

7. The assembly of claim 1 wherein the inner first material is a foam.

8. The assembly of claim 1 wherein the inner first material is a mesh.

9. The assembly of claim 1 wherein the inner first material is a perforated sheet.

10. The assembly of claim 1 wherein the outer second material comprises poly(2-hydroxyethyl methacrylate).

11. The assembly of claim 1 further comprising a central aperture.

12. The assembly of claim 11 wherein a diameter of the central aperture is about the same size as a diameter of the first shaft.

13. The assembly of claim 11 wherein a diameter of the central aperture is slightly larger than a diameter of a knife of the circular surgical stapling device.

14. The assembly of claim 1 wherein at least one of the inner first material and the outer second material further comprises at least one medically useful substance.

15. The assembly of claim 1 wherein the outer second material is connected to the inner first material via adhesive.

16. The assembly of claim 1 wherein the outer second material is connected to the inner first material via an overmold.

17. The assembly of claim 1 wherein the inner first material comprises an inner disc shape.

18. The assembly of claim 17 wherein the outer second material comprises an outer disc shape.