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    • 6. 发明授权
    • Electroactive polymer-based articulation mechanism for linear stapler
    • 用于线性吻合器的基于聚合物的电动铰接机构
    • US07404509B2
    • 2008-07-29
    • US11162986
    • 2005-09-30
    • Mark OrtizFrederick Shelton, IVJeffrey Swayze
    • Mark OrtizFrederick Shelton, IVJeffrey Swayze
    • A61B17/068
    • A61B17/07207A61B17/29A61B2017/00017A61B2017/00398A61B2017/00871A61B2017/2927A61B2017/2946
    • 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.
    • 提供了用于致动和/或铰接外科缝合器的方法和装置。 在一个实施例中,提供外科缝合器,其具有可移动地联接到细长轴的远端的缝合机构或端部执行器。 电可膨胀和可收缩的致动器,例如电活性聚合物致动器,可以用于通过将能量传递到电活性聚合物致动器来相对于细长轴来枢转或角度地调节缝合机构的位置。 在另一个实施方案中,电活性聚合物致动器可以用于致动钉施加组件,从而将一个或多个钉,并且优选至少两个直线排的钉驱动到组织中。 致动器可以替代地或附加地驱动刀片向远侧切割被装订的组织。