公开(公告)号：US5605272A

公开(公告)日：1997-02-25

申请号：US614415

申请日：1996-03-12

申请人： David A. Witt ,  Kirk M. Nicola ,  Robert G. Cook ,  Joseph C. Hueil ,  Richard W. Flaker

发明人： David A. Witt ,  Kirk M. Nicola ,  Robert G. Cook ,  Joseph C. Hueil ,  Richard W. Flaker

IPC分类号： A61B17/072 ,  A61B17/28 ,  A61B17/068

CPC分类号： A61B17/072 ,  A61B17/2909 ,  A61B2017/2925

摘要： A linear surgical stapler having clamping and firing triggers pivotally mounted to the frame of the instrument for pivotal rotation toward a hand grip is disclosed. The clamping trigger is positioned between the firing trigger and the hand grip. Each of the triggers are pivotally mounted to pivot pins spaced from each other within the body portion of the frame. Pivotal rotation of the first trigger is independent of pivotal rotation of the second trigger. When the clamping trigger is pivotally rotated toward the hand grip, the clamping and firing transmission assemblies move distally in tandem. Before the first trigger is pivoted, the firing transmission assembly blocks pivotal rotation of the second trigger. When the first trigger is pivoted, the initial distal movement of the firing transmission assembly enables the firing trigger to be in a position to pivotally rotate, and therefore cause the firing of staples. Additionally, a feature enabling the retention of the clamping trigger in intermediate and fully clamped positions is disclosed, where upon release of the retention feature, the clamping trigger can return to its original position by overriding the intermediate position. Finally, although the invention is described with particular reference to a linear stapler containing clamping and firing triggers, it has broader applicability to any surgical instrument which has first and second triggers pivotally actuated to transmit work to an end effector for performing first and second surgical functions during a desired surgical procedure.

摘要翻译： 公开了一种具有夹紧和触发触发的线性手术吻合器，其枢转地安装到仪器的框架上以朝向手柄枢转旋转。 夹紧扳机位于击发扳机和手柄之间。 每个触发器枢转地安装成在框架的主体部分内彼此间隔开的枢轴销。 第一触发器的枢转旋转与第二触发器的枢转旋转无关。 当夹紧扳机朝向手柄旋转时，夹紧和击发传动组件一起向远侧移动。 在第一触发器枢转之前，点火传动组件阻止第二触发器的枢转旋转。 当第一触发器枢转时，点火传动组件的初始远端运动使得击发触发器能够枢转地旋转，并因此引起订书钉的点燃。 此外，公开了一种能够将夹紧扳机保持在中间和完全夹紧位置的特征，其中当释放保持特征时，夹紧扳机可以通过覆盖中间位置而返回到其初始位置。 最后，尽管特别参考包含夹紧和触发触发器的线性吻合器来描述本发明，但是它具有更广泛的适用性，其适用于任何手术器械，其具有枢转地驱动的第一和第二触发器，以将功能传递到末端执行器，以执行第一和第二手术功能 在期望的手术过程中。