TRANSDUCER FEATURES FOR ULTRASONIC SURGICAL INSTRUMENT
    2.
    发明申请
    TRANSDUCER FEATURES FOR ULTRASONIC SURGICAL INSTRUMENT 审中-公开
    超声波手术仪的传感器特性

    公开(公告)号:WO2015041849A3

    公开(公告)日:2015-08-20

    申请号:PCT/US2014053857

    申请日:2014-09-03

    Abstract: An apparatus for operating on tissue includes a body, a shaft, an ultrasonic blade, and an acoustic assembly. The shaft extends distally from the body. The blade is disposed at the distal end of the shaft. The acoustic assembly comprises an acoustic waveguide coupled with the blade, a piezoelectric transducer element, a fastener, and a coupling member. The transducer element defines an inner diameter surface and an outer diameter surface. The fastener is configured to secure the transducer element relative to the waveguide. The coupling member is configured to provide electrical continuity between the fastener and the inner diameter surface of the transducer element. The outer diameter surface of the transducer element includes an annular recess. Another coupling member is configured to provide electrical continuity between the annular recess of the piezoelectric transducer element and a power source while permitting the piezoelectric transducer element to rotate relative to the body.

    Abstract translation: 用于在组织上操作的设备包括主体,轴,超声刀和声学组件。 轴从身体向远侧延伸。 刀片设置在轴的远端。 声学组件包括与叶片联接的声波导管,压电换能器元件,紧固件和联接构件。 换能器元件限定内径表面和外径表面。 紧固件构造成相对于波导来固定换能器元件。 联接构件构造成在紧固件与换能器元件的内径表面之间提供电连续性。 换能器元件的外径表面包括环形凹槽。 另一个耦合构件被配置为在压电换能器元件的环形凹槽和电源之间提供电连续性,同时允许压电换能器元件相对于主体旋转。

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