Seal element for anastomosis
A seal element for sealing between tissue lumens includes a first material for allowing tissue ingrowth and a second sealant material.
1. An assembly for disposing a seal element between tissue lumens comprising:
a circular surgical stapling device comprising an anvil assembly, a tubular body portion, and a circular knife 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 being a disc comprising an inner first material, an outer second material and a center aperture, a diameter of the center aperture being larger than the diameter of the circular knife.
2. The assembly of claim 1 wherein the inner first material is thinner than the outer second material.
3. The assembly of claim 2 wherein the inner first material is about 0.010″ to about 0.020″ thick.
4. The assembly of claim 2 wherein the inner first material comprises pores.
5. The assembly of claim 4 wherein the pores range from about 50 μm to about 200 μm.
6. The assembly of claim 1 wherein the inner first material is a foam.
7. The assembly of claim 1 wherein the inner first material is a mesh.
8. The assembly of claim 1 wherein the inner first material is a perforated sheet.
9. The assembly of claim 1 wherein the outer second material is compressible.
10. The assembly of claim 1 wherein the outer second material is expandable in response to contact with fluids.
11. 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.
12. The assembly of claim 1 wherein the seal element is attachable to the first shaft or the second shaft by means of a hub.
13. The assembly of claim 1 wherein the diameter of the center aperture is about the size of the first shaft.
14. The assembly of claim 1 wherein the outer second material is connected to the inner first material via adhesive.
15. The assembly of claim 1 wherein the outer second material is connected to the inner first material via an overmold.