Pouch Used To Deliver Medication When Ruptured

• US 20100127039A1
• Filed: 11/24/2008
• Published: 05/27/2010
• Est. Priority Date: 11/24/2008
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Tyco Healthcare Group LP (Medtronic Plc)
• Inventors: Hessler, Thomas R.
• Granted Patent: US 7,886,951 B2
• Time in Patent Office: Days
• US Class Current: 227/175.100
• CPC Class Codes: A61B 17/07292 Reinforcements for staple line, e.g. pledgets
• CPC Class Codes: A61B 17/115 Staplers for performing anastomosis in a single operation
• CPC Class Codes: A61B 17/1155 Circular staplers comprising a plurality of staples
• CPC Class Codes: A61B 2017/00884 enhancing wound closure
• CPC Class Codes: A61B 2017/00889 antimicrobial, disinfectant
• CPC Class Codes: A61B 2017/00893 pharmaceutically effective
• CPC Class Codes: A61B 2017/07257 characterised by its anvil

Abstract

An anvil assembly for a circular stapling device includes an anvil head configured to support an anvil plate thereon, a shaft extending from the anvil head and configured to selectively engage a rod member of the circular stapling device, an anvil plate operatively connected to the anvil head, wherein the anvil plate includes an inner diametral edge, and wherein the anvil plate defines a plurality of staple forming pockets therein at a location radially outward of the inner diametral edge, a recess formed in the anvil head, wherein the recess is defined by the inner diametral edge of the anvil plate and a rear surface of the anvil head, and a wound treatment material disposed substantially within the recess.

Claims

1. An anvil assembly for a circular stapling device, the anvil assembly comprising:

an anvil head configured to support an anvil plate thereon;

a shaft extending from the anvil head and configured to selectively engage a rod member of the circular stapling device;

an anvil plate operatively connected to the anvil head, wherein the anvil plate includes an inner diametral edge, and wherein the anvil plate defines a plurality of staple forming pockets therein at a location radially outward of the inner diametral edge;

a recess formed in the anvil head, wherein the recess is defined by the inner diametral edge of the anvil plate and a rear surface of the anvil head; and

a wound treatment material disposed substantially within the recess.

2. The anvil assembly of claim 1, wherein the wound treatment material is contained in at least one wound treatment material delivery pouch.

3. The anvil assembly of claim 2, wherein the recess has a diameter larger than a diameter of a knife blade that is longitudinally moveable along the shaft, wherein the wound treatment material delivery pouch is at least partially axially aligned with the knife blade.

4. The anvil assembly of claim 1, wherein the wound treatment material is at least one of an adhesive, a sealant, a hemostat and a medicament.

5. The anvil assembly of claim 4, wherein the adhesive includes at least one of an adhesive which cures upon tissue contact, an adhesive which cures upon exposure to ultraviolet (UV) light, and an adhesive which is pressure sensitive.

6. The anvil assembly of claim 4, wherein the adhesive includes at least one of a protein derived, aldehyde-based adhesive material, and a cyanoacrylate-based material.

7. The anvil assembly of claim 4, wherein the sealant material includes at least one of a fibrin sealant material, a collagen-based and synthetic polymer-based tissue sealant material, and synthetic polyethylene glycol-based, hydrogel sealant material.

8. The anvil assembly of claim 4, wherein the hemostat material includes at least one of a fibrin-based material, a collagen-based material, an oxidized regenerated cellulose-based material, a gelatin-based material, and a fibrinogen-thrombin material.

9. The anvil assembly of claim 4, wherein the medicament includes at least one of drugs, enzymes, growth factors, peptides, proteins, dyes, and diagnostic agents.

10. The anvil assembly of claim 1, further comprising a wound treatment material disposed in each staple forming pocket of the anvil plate.

11. The anvil assembly of claim 10, further comprising a liner covering the plurality of staple forming pockets.

12. The anvil assembly of claim 1, wherein the wound treatment material is disposed within an annular pouch.

13. A surgical stapling device, comprising:

a handle portion;

a body portion located at the distal end of the handle portion;

a head portion located at the distal end of the body portion, the head portion including an anvil assembly, a staple cartridge assembly and a knife blade, wherein the staple cartridge assembly includes an annular array of staples, wherein the anvil assembly includes;

an anvil head configured to support an anvil plate thereon;

a shaft extending from the anvil head and configured to selectively engage a rod member of the staple cartridge assembly;

an anvil plate operatively connected to the anvil head, wherein the anvil plate includes an inner diametral edge having a diameter larger than a diameter of the knife blade, and wherein the anvil plate defines a plurality of staple forming pockets therein;

a recess formed in the anvil head, wherein the recess is defined by the inner diametral edge of the anvil plate and a rear surface of the anvil head; and

a wound treatment material disposed substantially within the recess.

14. The surgical stapling device of claim 13, wherein the wound treatment material is contained in at least one wound treatment material delivery pouch.

15. The surgical stapling device of claim 13, wherein the wound treatment material is contained in a pair of stacked wound treatment material delivery pouches.

16. The surgical stapling device of claim 15, wherein the pair of stacked wound treatment material delivery pouches are at least partially axially aligned with the knife blade.

17. The surgical stapling device of claim 16, wherein at least one of the pair of stacked wound treatment material delivery pouches includes a plurality of compartments.

18. The surgical stapling device of claim 13, wherein the wound treatment material is contained in a plurality of wound treatment material delivery pouches, and wherein at least one wound treatment material delivery pouch includes a plurality of compartments.

19. The surgical stapling device of claim 13, further comprising a liner covering the entirety of the recess and disposed over the wound treatment material.

20. The surgical stapling device of claim 19, wherein at least a portion of the wound treatment material is contained in a wound treatment material delivery pouch.