Surgical stapling apparatus

Details Surgical stapling apparatus Surgical stapling apparatus

A - Human Necessities

61

B

A61B 17/068 (2006.01)

Patent

CA 2552427

A surgical stapling apparatus comprising; a) a housing; b) a movable handle supported by the housing, the movable handle being movable through an actuation stroke; c) an elongated body extending distally from the housing and defining a longitudinal axis, the elongated body having a distal end adapted to releasably engage a disposable loading unit; d) an advancement assembly including an actuation shaft and a driving pawl, the actuation shaft having a toothed rack and being supported at least in part within the housing, the driving pawl being operatively associated with the movable handle and biased into engagement with the rack, wherein during the actuation stroke, the driving pawl is movable to effect longitudinal advancement of the actuation shaft; and e) a retraction mechanism including a release plate operatively associated with the actuation shaft, the release plate being movable relative to the actuation shaft into operative engagement with the driving pawl to disengage the driving pawl from the rack.

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