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41. 发明授权

US5312329A Piezo ultrasonic and electrosurgical handpiece 失效
标题翻译：压电超声波和电外科手机
公开(公告)号：US5312329A
公开(公告)日：1994-05-17
申请号：US44430
申请日：1993-04-07
申请人： Michael A. Beaty , Arlan J. Reschke , Robert B. Stoddard , Jon P. Page , Bandele Jeffrey-Coker , Michael Olichney , Emery S. Rose
发明人： Michael A. Beaty , Arlan J. Reschke , Robert B. Stoddard , Jon P. Page , Bandele Jeffrey-Coker , Michael Olichney , Emery S. Rose
IPC分类号： A61B18/00 , A61B17/32 , A61B18/12 , A61B18/14 , A61M1/00
CPC分类号： A61B17/320068 , A61B18/14 , A61B2017/320084 , A61B2217/005
摘要： An ultrasonic and electrosurgical handpiece housing has an axis, a distal end, a proximal end and a passage defined by an inside wall. A piezo stack has elements carried along a plane generally transverse to the axis. A retainer for the elements has distal, intermediate and proximal portions. The distal portion has a fastener; the proximal portion has a threaded shoulder bolt. The stack about the shoulder has an energy input and a reference output positioned axially apart from one another. An insulating sleeve about the bolt is between central openings of the elements and the bolt. A pair of insulators about the bolt has the stack therebetween; one insulator is between the plane and the stack and the other is near the threads. The intermediate portion attaches to the housing at the plane with decoupling and sealing. An irrigation channel conveys fluid. The drive energy input, the feedback signal and the reference outputs are insulated by the sleeve and pair from the bolt. A washer against the insulator and about the threads applies axial but not torsion to the insulator when a clamping nut on the threads holds components on the bolt. The clamping nut is in circuit with electrosurgical energy as the reference return for electrosurgery. A tool fastens to a connector for transmitting axial vibrations in the form of a predefined stroke at a tip thereof.
摘要翻译：超声波和电外科手持壳体具有轴线，远端，近端和由内壁限定的通道。压电堆栈具有沿着大致横向于轴线的平面运送的元件。元件的保持器具有远端，中间和近端部分。远侧部分具有紧固件; 近端部分具有螺纹肩部螺栓。围绕肩部的堆叠具有彼此轴向分开定位的能量输入和参考输出。围绕螺栓的绝缘套管位于元件的中心开口和螺栓之间。围绕螺栓的一对绝缘体之间具有叠层; 一个绝缘体在平面和堆叠之间，另一个位于螺纹附近。中间部分在平面处与脱开和密封附接到壳体。灌溉渠道输送流体。驱动能量输入，反馈信号和参考输出由套筒和对与螺栓绝缘。当螺纹上的夹紧螺母保持螺栓上的部件时，抵靠绝缘体并且围绕螺纹的垫圈对轴承施加轴向但不扭转。夹紧螺母与电外科手术电路作为电外科手术的参考回路。工具紧固到用于在其尖端处以预定行程的形式传递轴向振动的连接器。

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