公开(公告)号：US06482198B2

公开(公告)日：2002-11-19

申请号：US09837555

申请日：2001-04-19

申请人： Ronald F. Overaker ,  Cynthia A. Toth ,  Brian C. Dodge ,  Brooks W. McCuen ,  Glenn J. Jaffe ,  Eric A. Postal ,  Sharon Fekrat

发明人： Ronald F. Overaker ,  Cynthia A. Toth ,  Brian C. Dodge ,  Brooks W. McCuen ,  Glenn J. Jaffe ,  Eric A. Postal ,  Sharon Fekrat

IPC分类号： A61B1700

CPC分类号： A61B17/2909 ,  A61B2017/2913 ,  A61B2017/2918 ,  A61B2017/305

摘要： Hand-held instruments have an actuator assembly which may be employed to actuate a distally mounted tool by application of radial force about the entirety of the instrument circumference (i.e., is omni-actuatable). Most preferably, the actuator assembly includes a plurality of circumferentially spaced-apart generally L-shaped actuator levers defining respective arcuate bearing surfaces along exterior edge regions thereof, and a retaining ring which circumferentially bounds the actuator levers around the exterior edge regions thereof. The retaining ring most preferably defines an interior stationary arcuate guide surface in conformable mated relationship to the bearing surfaces of said actuator levers. Radial force applied to the proximally extending arm sections of said levers thereby responsively causes the bearing surfaces thereof to be slideably moved along the guide surface of said retaining ring so as to translate such radial force into longitudinal movements of an elongate actuation pin between retracted and extended positions thereof. By providing a tool which operatively coacts with the actuation pin, a surgeon may actuate the tool as needed by applying radial force at any point about the circumference of the actuator assembly.

摘要翻译： 手持式仪器具有致动器组件，该致动器组件可用于通过围绕整个仪器周边施加径向力来致动远端安装的工具（即，全向致动）。 最优选地，致动器组件包括多个周向间隔开的大致L形的致动器杆，其沿着其外部边缘区域限定相应的弓形轴承表面，以及围绕致动器杆围绕其外部边缘区域周向地限定的保持环。 保持环最优选地限定与所述致动器杠杆的支承表面一致配合关系的内部固定弓形引导表面。 施加到所述杠杆的近端延伸的臂部分的径向力因此响应地使得其支承表面沿着所述保持环的引导表面可滑动地移动，以便将所述径向力转换成缩回和延伸的细长致动销的纵向运动 的位置。 通过提供与致动销可操作地共同作用的工具，外科医生可以根据需要通过在围绕致动器组件的圆周的任何点施加径向力来致动工具。