Surgical stapling device

Details Surgical stapling device Surgical stapling device

A - Human Necessities

61

B

A61B 17/115 (2006.01) A61B 1/31 (2006.01)

Patent

CA 2694799

A surgical stapling device comprises an elongated body portion having proximal and distal portions and a head portion positioned adjacent the distal portion of the body portion. The head portion includes a shell assembly and an anvil assembly movable relative to the shell assembly between un-approximated and approximated positions. The anvil assembly includes an anvil head and a center rod extending from the anvil head, the center rod includes a first annular engagement member and a second annular engagement member spaced distally from the first annular engagement member, and a drive screw with proximal and distal ends extending at least partially through the body portion and an anvil retainer with proximal and distal ends, the anvil retainer being operably connected to the drive screw and configured and dimensioned to at least partially receive the center rod, wherein the drive screw moves the anvil assembly between the un-approximated and approximated positions, the first annular engagement member configured to engage the anvil retainer and the second annular member configured to engage the shell assembly.

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