Method for calculating transducer capacitance to determine transducer temperature
    1.
    发明授权
    Method for calculating transducer capacitance to determine transducer temperature 有权
    计算换能器电容以确定换能器温度的方法

    公开(公告)号:US07077853B2

    公开(公告)日:2006-07-18

    申请号:US09975390

    申请日:2001-10-10

    IPC分类号: A61B17/32

    摘要: A method for calculating the capacitance of a transducer (C0) without knowing the exact resonance frequency of a transducer/blade combination is achieved by sweeping across a broad frequency range which contains resonant and non-resonant frequencies where C0 can be measured. A pre-defined frequency range is set independently of the resonance frequency of a specific transducer/blade combination. C0 of the transducer/blade is measured at several different frequencies within the pre-defined frequency range to ensure that invalid C0 measurements are disregarded, and the temperature of the transducer is calculated based on valid C0 measurements. The determined transducer temperature, based on C0 measurements, can be used to optimize performance and/or provide a safety shutdown mechanism for the generator.

    摘要翻译: 通过扫描包含谐振和非共振频率的宽频率范围来实现在不知道换能器/叶片组合的精确谐振频率的情况下计算换能器(C 0> 0)的电容的方法,其中, 可以测量C 0 <0>。 预定义的频率范围独立于特定换能器/叶片组合的共振频率设置。 在预定义的频率范围内以几个不同的频率测量换能器/叶片的C 0 测量计算的。 可以使用基于C 0 0测量的确定的换能器温度来优化性能和/或为发电机提供安全关闭机构。

    Folded ultrasonic end effectors with increased active length
    9.
    发明授权
    Folded ultrasonic end effectors with increased active length 有权
    具有增加的有效长度的折叠式超声末端效应器

    公开(公告)号:US08372102B2

    公开(公告)日:2013-02-12

    申请号:US13452386

    申请日:2012-04-20

    IPC分类号: A61B17/32

    摘要: An end effector for use with an ultrasonic surgical instrument. A body extends along a longitudinal axis. The body includes a proximal end and a distal end. The body comprises an outer surface that defines an inner portion. The proximal end of the body is configured to couple to an ultrasonic transducer configured to produce vibrations at a predetermined frequency and a predetermined amplitude. An extendable folded element includes a first end coupled to the distal end of the body and extending proximally along the longitudinal axis from the distal end of the body toward the proximal end of the body. The extendable folded element comprises a second free acoustic end. The extendable folded element and the outer surface of the body define a single substantially parallel acoustic path.

    摘要翻译: 用于超声波手术器械的末端执行器。 主体沿纵轴延伸。 主体包括近端和远端。 主体包括限定内部部分的外表面。 身体的近端构造成耦合到被配置为以预定频率和预定振幅产生振动的超声换能器。 可延伸的折叠元件包括联接到主体的远端的第一端,并且沿着纵向轴线从主体的远端朝向身体的近端向近侧延伸。 可伸缩折叠元件包括第二自由声端。 该可延伸的折叠元件和本体的外表面限定了单个基本平行的声学路径。

    FOLDED ULTRASONIC END EFFECTORS WITH INCREASED ACTIVE LENGTH
    10.
    发明申请
    FOLDED ULTRASONIC END EFFECTORS WITH INCREASED ACTIVE LENGTH 有权
    折叠的超声波终端效应增加了活跃的长度

    公开(公告)号:US20110125175A1

    公开(公告)日:2011-05-26

    申请号:US13022077

    申请日:2011-02-07

    IPC分类号: A61B17/32

    摘要: An end effector for use with an ultrasonic surgical instrument. A body extends along a longitudinal axis. The body includes a proximal end and a distal end. The body comprises an outer surface that defines an inner portion. The proximal end of the body is configured to couple to an ultrasonic transducer configured to produce vibrations at a predetermined frequency and a predetermined amplitude. A folded element includes a first end coupled to the distal end of the body and extending proximally along the longitudinal axis from the distal end of the body toward the proximal end of the body. The folded element comprises a second free acoustic end. The folded element and the outer surface of the body define a single substantially parallel acoustic path. A clamp arm is operatively coupled to the body.

    摘要翻译: 用于超声波手术器械的末端执行器。 主体沿纵轴延伸。 身体包括近端和远端。 主体包括限定内部部分的外表面。 身体的近端构造成耦合到被配置为以预定频率和预定振幅产生振动的超声换能器。 折叠元件包括联接到主体的远端的第一端,并且沿着纵向轴线从身体的远端朝向身体的近端向近侧延伸。 折叠元件包括第二自由声端。 折叠的元件和主体的外表面限定了单个基本上平行的声学路径。 夹臂可操作地联接到主体。