HUB FOR POSITIONING ANNULAR STRUCTURE ON A SURGICAL DEVICE

• US 20090095792A1
• Filed: 12/16/2008
• Published: 04/16/2009
• Est. Priority Date: 02/28/2006
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Bettuchi, Michael J.
• Granted Patent: US 8,286,849 B2
• Time in Patent Office: Days
• US Class Current: 227/179.1
• 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

Abstract

An apparatus for forming an anastomosis between adjacent intestinal sections is provided. The apparatus includes an anastomosis device having a cartridge assembly; and an anvil assembly having a shaft extending therefrom and a connection feature on the shaft. The apparatus further including a hub having a connection portion selectively attachable to the connection feature of the shaft, the connection portion defining a lumen for receiving the shaft; and an annular structure operatively connected to the hub and extending radially outwardly therefrom, the hub being arranged for locating the annular structure between the adjacent intestinal sections when connected to the shaft.

Claims

1. An apparatus for forming an anastomosis between adjacent intestinal sections, the apparatus comprising:

an anastomosis device including;

a cartridge assembly; and

an anvil assembly having a shaft extending therefrom and a connection feature on the shaft; and

a hub having a connection portion selectively attachable to the connection feature of the shaft, the connection portion defining a lumen for receiving the shaft; and

an annular structure operatively connected to the hub and extending radially outwardly therefrom, the hub being arranged for locating the annular structure between the adjacent intestinal sections when connected to the shaft.

2. The apparatus according to claim 1, wherein the connection portion of the hub includes an annular flange monolithically formed with and extending therefrom.

3. The apparatus according to claim 2, wherein the flange extends from a first end of the connection portion.

4. The apparatus according to claim 1, wherein the connection portion includes a plurality of longitudinally extending slots formed around a periphery thereof.

5. The apparatus according to claim 4, wherein each elongate slot extends through one end of the connection portion, the slots being defined by a plurality of flexible fingers.

6. The apparatus according to claim 1, wherein the annular structure is fabricated from at least one of a bioabsorbable and a non-bioabsorbable material.

7. The apparatus according to claim 6, wherein the annular structure comprises a material selected from the group consisting of an adhesive, a sealant, a hemostat, and a medicament.

8. The apparatus according to claim 1, wherein the annular structure includes an outer annular disc defining a central opening having a dimension larger than an outer diameter of the central sleeve, and a web interconnecting the disc to the central sleeve.

9. An apparatus for forming an anastomosis between adjacent intestinal sections, the apparatus comprising:

an anastomosis device including;

a cartridge assembly having a first tissue contacting surface; and

an anvil assembly having an anvil member with a second tissue contacting surface, the anvil assembly having a shaft, and a connection feature on the shaft; and

a hub having a central sleeve defining a lumen for receiving the shaft, the central sleeve having a connection portion selectively attachable to the connection feature of the shaft; and

an annular structure operatively connected to the hub and extending radially outwardly therefrom, the annular structure being connected at one end of the central sleeve and being arranged with the connection portion for locating the annular structure adjacent the anvil member.

10. The apparatus according to claim 9, wherein the hub includes an annular flange monolithically formed with and extending from the central sleeve.

11. The apparatus according to claim 10, wherein the flange extends from a first end of the central sleeve.

12. The apparatus according to claim 9, wherein the central sleeve includes a plurality of longitudinally extending slots formed around a periphery thereof.

13. The apparatus according to claim 12, wherein each elongate slot extends through one end of the central sleeve, the slots being defined by a plurality of flexible fingers.

14. The apparatus according to claim 9, wherein the annular structure is fabricated from at least one of a bioabsorbable and a non-bioabsorbable material.

15. The apparatus according to claim 14, wherein the annular structure comprises a material selected from the group consisting of an adhesive, a sealant, a hemostat, and a medicament.

16. The apparatus according to claim 9, wherein the annular structure includes an outer annular disc defining a central opening having a dimension larger than an outer diameter of the central sleeve, and a web interconnecting the disc to the central sleeve.

17. An apparatus for forming an anastomosis between adjacent intestinal sections, the apparatus comprising:

an anastomosis device including an anvil including an anvil assembly, a cartridge assembly, and a shaft, the shaft including a connection feature located along a length thereof for positioning an annular structure at a distance spaced from a tissue contacting surface of each of the anvil assembly and the cartridge assembly; and

a hub selectively connectable to the connection feature of the shaft and adapted for locating the annular structure between the adjacent intestinal sections, the hub including a central sleeve defining a lumen for selectively receiving the shaft, the central sleeve forming a connection portion for engaging the connection feature, the annular structure operatively connected to the hub and extending radially outwardly therefrom.

18. The apparatus according to claim 17, wherein the connection portion of the hub includes an annular flange monolithically formed with and extending therefrom.

19. The apparatus according to claim 17, wherein the connection portion includes a plurality of longitudinally extending slots formed around a periphery thereof.

20. The apparatus according to claim 19, wherein each elongate slot extends through one end of the connection portion, the slots being defined by a plurality of flexible fingers.