Powered surgical stapling device

Details Powered surgical stapling device Powered surgical stapling device

2008-07-23

2009-12-29

Smith, Scott A. (Department: 3721)

Elongated-member-driving apparatus

Surgical stapler

C227S019000, C227S176100

Reexamination Certificate

active

07637409

ABSTRACT:
A medical instrument having a tool assembly attachable to a distal end of the medical instrument is disclosed. The tool assembly includes a pair of opposing tissue engaging surfaces for clamping tissue therebetween. The medical instrument also includes a housing having a fixed handle and a movable handle mounted to the housing and selectively movable relative to the fixed handle from a first position in spaced relation relative to the fixed handle to a second position closer to the fixed handle to actuate the clamping of tissue. The instrument further includes a selectively activatable drive assembly including a power source and a motor which is operatively coupled to the movable handle, wherein upon actuation the motor actuates the pair of opposing tissue engaging surfaces. The drive assembly also includes a controller configured to variably control the rate at which the motor actuates the pair of opposing tissue engaging surfaces in response to the force exerted on the movable handle.

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European Search Report for corresponding EP 08250823 date of completion is Jun. 27, 2008 (2 pages).

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