Hub for positioning annular structure on a surgical device
View Patent ↗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.
1. An assembly for disposing an annular structure between adjacent intestinal sections, the assembly comprising:
an annular surgical stapling device having an anvil assembly and a tubular body portion, the anvil assembly having an anvil member and an anvil shaft, the tubular body portion carrying a plurality of surgical staples in an annular configuration, the tubular body portion having a connection member disposed radially inward of the surgical staples, the anvil shaft of the anvil member including a flange and being attachable to the connection member of the tubular body portion; and
a hub adapted for support on the anvil shaft to engage the flange of the anvil shaft, the hub selectively receiving the anvil shaft therein, and an annular structure radially extending from the hub, the hub including a plurality of resilient fingers extending substantially in a longitudinal direction and arranged to engage the flange of the anvil shaft to position the annular structure at a location spaced a distance from a tissue contacting surface of the anvil assembly and the tubular body portion, wherein the annular structure comprises a material selected from the group consisting of: an adhesive, a sealant, a hemostat, and a medicament.
2. The assembly according to claim 1 , wherein the hub includes a central sleeve.
3. The assembly according to claim 2 , wherein the hub includes an annular flange monolithically formed with and extending from the central sleeve.
4. The assembly according to claim 2 , wherein the central sleeve includes a plurality of longitudinally extending slots formed around a periphery of the central sleeve.
5. The assembly according to claim 1 , wherein the annular structure includes at least one of a bioabsorbable material and a non-bioabsorbable material.
6. The assembly according to claim 1 , wherein the annular structure includes an outer annular disc defining a central opening.
7. The assembly according to claim 6 , wherein the annular structure includes a web interconnecting the disc to the hub.
8. An assembly for disposing an annular structure between adjacent intestinal sections, the assembly comprising:
an annular surgical stapling device having an anvil assembly and a tubular body portion, the anvil assembly having an anvil member and an anvil shaft, the tubular body portion carrying a plurality of surgical staples in an annular configuration, the tubular body portion having a connection member disposed radially inward of the surgical staples, the anvil shaft of the anvil member including a flange and being attachable to the connection member of the tubular body portion; and
a hub adapted for support on the anvil shaft to engage the flange of the anvil shaft, the hub selectively receiving the anvil shaft therein, and an annular structure radially extending from the hub, the annular structure including an outer annular disc defining a central opening and including a web interconnecting the disc to the hub, the hub including a plurality of resilient fingers extending substantially in a longitudinal direction and arranged to engage the flange of the anvil shaft to position the annular structure at a location spaced a distance from a tissue contacting surface of the anvil assembly and the tubular body portion.