Elongated-member-driving apparatus – Surgical stapler – With magazine
Reexamination Certificate
2005-09-30
2008-08-05
Smith, Scott A. (Department: 3721)
Elongated-member-driving apparatus
Surgical stapler
With magazine
C227S019000, C227S175100, C227S180100, C606S139000, C606S219000
Reexamination Certificate
active
07407077
ABSTRACT:
Methods and devices are provided for actuating and/or articulating a surgical stapler. In one embodiment, a surgical stapler is provided having a stapling mechanism or end effector that is movably coupled to a distal end of an elongate shaft. An electrically expandable and contractible actuator, such as an electroactive polymer actuator, can be used to pivotally or angularly adjust a position of the stapling mechanism relative to the elongate shaft by delivering energy to the electroactive polymer actuator. In another embodiment, an electroactive polymer actuator can be used to actuate the staple applying assembly, thereby driving one or more staples, and preferably at least two linear rows of staples, into tissue. The actuator can alternatively or additionally drive a blade distally to cut tissue being stapled.
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Hueil Joseph
Ortiz Mark
Shelton, IV Frederick
Swayze Jeffrey
Ethicon Endo-Surgery Inc.
Nutter & McClennen & Fish LLP
Smith Scott A.
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