Shaft based rotary drive system for surgical instruments
    45.
    发明授权
    Shaft based rotary drive system for surgical instruments 有权
    基于轴的旋转驱动系统用于外科器械

    公开(公告)号:US08196796B2

    公开(公告)日:2012-06-12

    申请号:US13020053

    申请日:2011-02-03

    IPC分类号: A61B17/10

    摘要: A surgical instrument including a drive mechanism configured to advance a staple driver and/or cutting member at a first rate and retract the staple driver and/or cutting member at a different rate. In at least one embodiment, the rate at which the driver and cutting member is advanced and/or retracted is the distance that the driver and/or cutting member is translated per actuation of a trigger, for example. In various embodiments, the cutting member can be retracted at a faster rate as compared to the rate in which it is advanced. In such embodiments, the surgical instrument can, owing to the slower advancing rate, provide a greater torque or advancing force to the cutting member while, owing to the faster retracting rate, reduce the time required for the surgeon to retract the cutting member.

    摘要翻译: 一种手术器械,包括驱动机构,其构造成以第一速率推进缝钉驱动器和/或切割构件,并以不同的速率使钉驱动器和/或切割构件缩回。 在至少一个实施例中,例如,驱动器和切割构件前进和/或缩回的速率是驾驶员和/或切割构件按照触发器的致动而平移的距离。 在各种实施例中,与其前进的速率相比,切割构件可以以更快的速度缩回。 在这样的实施例中,由于较慢的推进速率,手术器械可以向切割构件提供更大的扭矩或推进力,同时由于更快的收缩速度,外科医生缩短了切割构件所需的时间。