POUCH USED TO DELIVER MEDICATION WHEN RUPTURED

• US 20110089219A1
• Filed: 12/23/2010
• Published: 04/21/2011
• 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 8,201,720 B2
• Time in Patent Office: Days
• US Class Current: 227/175.1
• 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 an actuator of the circular stapling device;

an anvil plate operatively connected to the anvil head and defining a tissue contacting surface, wherein the anvil plate defines a plurality of staple forming pockets in the tissue contacting surface at a location radially outward of the shaft and arranged in at least one annular array;

at least one recess formed in the anvil head, wherein the at least one recess extends away from a plane defined by the tissue contacting surface; and

a wound treatment material disposed substantially within the at least one 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 at least one 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 one or more staple forming pockets of the plurality of staple forming pockets.

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 at least one annular pouch.

13. The anvil assembly of claim 1, wherein the wound treatment material is in the form of a hydrogel.

14. 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 an actuator of the circular stapling device;

an anvil plate operatively connected to the anvil head, wherein the anvil plate defines a tissue contacting surface, and wherein the anvil plate defines a plurality of staple forming pockets in the tissue contacting surface arranged in at least one annular array;

at least one recess formed in the tissue contacting surface at a location radially inward of the plurality of staple forming pockets; and

a wound treatment material disposed substantially within the at least one recess.

15. The anvil assembly of claim 14, wherein the wound treatment material is contained in at least one wound treatment material delivery pouch.

16. The anvil assembly of claim 15, wherein the at least one 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.

17. The anvil assembly of claim 14, further comprising a wound treatment material disposed in one or more staple forming pockets of the plurality of staple forming pockets.

18. The anvil assembly of claim 17, further comprising a liner covering the plurality of staple forming pockets.

19. The anvil assembly of claim 14, wherein the wound treatment material is disposed within at least one annular pouch.

20. The anvil assembly of claim 14, wherein the wound treatment material is in the form of a hydrogel.

21. A method of performing a surgical stapling procedure, the method comprising the steps of:

providing a surgical stapling device including an anvil assembly, the anvil assembly including;

an anvil head configured to support an anvil plate thereon;

a shaft extending from the anvil head and configured to selectively engage an actuator 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;

positioning the surgical stapling device to a target surgical site; and

employing the anvil assembly and a staple cartridge assembly of the surgical stapling device to deliver the wound treatment material from the anvil assembly and a plurality of staples from the staple cartridge assembly to tissue of the target surgical site upon firing of the surgical stapling device.

22. The method of claim 21, wherein the wound treatment material is in the form of a hydrogel.