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    • 46. 发明授权
    • Vacuum sensor and pressure pump for tetherless biopsy device
    • 真空传感器和无菌活检装置的压力泵
    • US08057402B2
    • 2011-11-15
    • US11965048
    • 2007-12-27
    • John A. HibnerWilliam D. DannaherWells D. Haberstich
    • John A. HibnerWilliam D. DannaherWells D. Haberstich
    • A61B10/00
    • A61B10/0275A61B10/0283A61B2010/0208A61B2017/00398
    • A biopsy device may include a needle, a cutter, and a handpiece. A vacuum pump in the handpiece may provide a vacuum to the needle and/or to the cutter. A pressure pump in the handpiece may also provide pressurized air to the needle and/or to the cutter. A motor in the handpiece may drive the vacuum pump, the pressure pump, and/or the cutter. A vacuum sensor may sense a vacuum level within the biopsy device, and cause initiation of operational cycles in response to sensed vacuum levels. Portions of a valving mechanism and a clutching mechanism may be integrally formed. A clutching and valving mechanism may be driven by a first battery-powered motor; and a cutter, pressure pump, and vacuum pump by a second battery-powered motor. A biopsy device may thus provide vacuum, pressurized air, and power from within a handpiece, such that the biopsy device is tetherless.
    • 活检装置可以包括针,切割器和手持件。 手柄中的真空泵可以向针和/或切割器提供真空。 手持件中的压力泵还可以向针和/或切割器提供加压空气。 手机中的电机可以驱动真空泵,压力泵和/或切割器。 真空传感器可以感测活检装置内的真空度,并响应感测的真空度引起操作循环的启动。 阀机构和离合机构的一部分可以一体地形成。 离合器和阀门机构可由第一电池供电的马达驱动; 以及由第二电池供电电动机的切割器,压力泵和真空泵。 因此,活检装置可以从手持件内提供真空,加压空气和动力,使得活检装置是无连接的。