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    • 4. 发明授权
    • Polarization and temperature insensitive surgical instrument force transducer
    • 极化和温度不敏感的手术器械力传感器
    • US08491574B2
    • 2013-07-23
    • US12541848
    • 2009-08-14
    • Stephen J. Blumenkranz
    • Stephen J. Blumenkranz
    • A61B19/00
    • A61B19/2203A61B34/30A61B34/37A61B34/71A61B2017/00477A61B2034/305A61B2090/064Y10T156/10
    • A force sensor apparatus, operatively mounted in a surgical instrument includes the force transducer. The force transducer includes a transducer body having a coefficient of thermal expansion, and at least one optic fiber, fixedly attached to the transducer body, including a Bragg grating; and having a coefficient of thermal expansion matched to the coefficient of thermal expansion of the transducer body to mitigate polarization and calibration drift effects on the force transducer. The transducer body comprises a metal transducer body, and the metal transducer body is selected from a group of metal bodies including an aluminum alloy transducer body, a stainless steel alloy transducer body, a maraging steel alloy transducer body, and a titanium alloy transducer body. The at least one optic fiber comprises an optic fiber having a negative thermo-optic coefficient, such as a phosphate glass optic fiber reducing the thermal sensitivity of the transducer.
    • 可操作地安装在手术器械中的力传感器装置包括力传感器。 力传感器包括具有热膨胀系数的换能器主体,以及至少一个光纤,固定地附接到换能器主体,包括布拉格光栅; 并且具有与换能器体的热膨胀系数匹配的热膨胀系数,以减轻对力传感器的偏振和校准漂移效应。 换能器主体包括金属换能器体,并且金属换能器主体从包括铝合金换能器主体,不锈钢合金换能器本体,马氏体时效钢合金换能器本体和钛合金换能器本体的一组金属体中选择。 所述至少一个光纤包括具有负热光系数的光纤,例如降低传感器的热敏感性的磷酸盐玻璃光纤。
    • 5. 发明授权
    • Optic fiber connection for a force sensing instrument
    • 用于力传感仪器的光纤连接
    • US08463439B2
    • 2013-06-11
    • US12415795
    • 2009-03-31
    • Stephen J. BlumenkranzGregory W. Dachs, IIIan McDowallChristopher J. Hasser
    • Stephen J. BlumenkranzGregory W. Dachs, IIIan McDowallChristopher J. Hasser
    • G05B15/00G05B19/00
    • A61B34/20A61B18/00A61B34/30A61B2017/00477A61B2034/2061A61B2034/305A61B2090/064A61B2562/0266G01B11/16G01L1/242G02B6/12019G02B6/264G02B6/32Y10T74/20335
    • In one embodiment, a surgical instrument includes a housing linkable with a manipulator arm of a robotic surgical system, a shaft operably coupled to the housing, a force transducer on a distal end of the shaft, and a plurality of fiber optic strain gauges on the force transducer. In one example, the plurality of strain gauges are operably coupled to a fiber optic splitter or an arrayed waveguide grating (AWG) multiplexer. A fiber optic connector is operably coupled to the fiber optic splitter or the AWG multiplexer. A wrist joint is operably coupled to a distal end of the force transducer, and an end effector is operably coupled to the wrist joint. In another embodiment, a robotic surgical manipulator includes a base link operably coupled to a distal end of a manipulator positioning system, and a distal link movably coupled to the base link, wherein the distal link includes an instrument interface and a fiber optic connector optically linkable to a surgical instrument. A method of passing data between an instrument and a manipulator via optical connectors is also provided.
    • 在一个实施例中,手术器械包括可与机器人手术系统的操纵臂连接的壳体,可操作地联接到壳体的轴,在轴的远端上的力传感器,以及多个光纤应变计 力传感器。 在一个示例中,多个应变计可操作地耦合到光纤分离器或阵列波导光栅(AWG)多路复用器。 光纤连接器可操作地耦合到光纤分离器或AWG多路复用器。 腕关节可操作地联接到力传感器的远端,并且端部执行器可操作地联接到腕关节。 在另一个实施例中,机器人外科手术操纵器包括可操作地联接到操纵器定位系统的远端的基部连杆和可移动地联接到基部连杆的远端连杆,其中远端连杆包括仪器接口和可光学连接的光纤连接 到手术器械。 还提供了通过光学连接器在仪器和操纵器之间传递数据的方法。