RF power amplifier transistor quiescent current checking and adjusting
    1.
    发明授权
    RF power amplifier transistor quiescent current checking and adjusting 失效
    RF功率放大器晶体管静态电流检查和调整

    公开(公告)号:US06515545B1

    公开(公告)日:2003-02-04

    申请号:US09932422

    申请日:2001-08-17

    CPC classification number: H03F1/304 H03F3/211

    Abstract: A power amplifier system is presented for use in amplifying an RF input signal comprising N sub-power amplifiers are connected together in parallel with each receiving and amplifying a portion of the RF input signal. A combiner combines the amplified portions of the RF input signal to provide a combined output signal. Each sub-amplifier includes at least one transistor having an input port that receives a DC bias voltage and an output port, such that when the RF input signal is not present a quiescent current flows through the output port. A controller is operative when the RF signal is not present to check and adjust the magnitude of the quiescent current flowing in each of the sub-amplifier output ports in the sequence of 1 . . . N.

    Abstract translation: 提供功率放大器系统,用于放大RF输入信号,其中N个子功率放大器与每个接收和放大RF输入信号的一部分并联连接在一起。 组合器组合RF输入信号的放大部分以提供组合的输出信号。 每个子放大器包括至少一个晶体管,其具有接收DC偏置电压的输入端口和输出端口,使得当RF输入信号不存在时,静态电流流过输出端口。 当RF信号不存在时,控制器可操作,以按照1的顺序检查和调整在每个子放大器输出端口中流动的静态电流的大小。 。 。 N.

    Tissue Sample Revolver Drum Biopsy Device
    2.
    发明申请
    Tissue Sample Revolver Drum Biopsy Device 有权
    组织样本左轮手枪活检装置

    公开(公告)号:US20070239067A1

    公开(公告)日:2007-10-11

    申请号:US11736117

    申请日:2007-04-17

    Abstract: A biopsy device and method are provided for obtaining a tissue sample, such as a breast tissue biopsy sample. The biopsy device includes a disposable probe assembly with an outer cannula having a distal piercing tip, a cutter lumen, and a cutter tube that rotates and translates past a side aperture in the outer cannula to sever a tissue sample. The biopsy device also includes a reusable handpiece with an integral motor and power source to make a convenient, untethered control for use with ultrasonic imaging. The reusable handpiece incorporates a probe oscillation mode to assist when inserting the distal piercing tip into tissue. The motor also actuates an attached sample revolver drum assembly in coordination with movement of the cutter tube to provide sequentially stored tissue samples in a sample storage bandolier that is rotated about a revolver cylindrical drum.

    Abstract translation: 提供活检装置和方法来获得诸如乳房组织活组织检查样本的组织样本。 活检装置包括具有外插管的一次性探针组件,该外套管具有远端穿刺尖端,切割器内腔和切割管,其旋转并平移穿过外插管中的侧孔以切断组织样本。 活检装置还包括具有集成电机和电源的可重复使用的手持件,以便使用于超声波成像的方便,无阻塞的控制。 可重复使用的手持件包含探针振动模式,以在将远端穿刺尖端插入组织中时有助于。 电动机还与切割器管的运动协调地驱动连接的样品转筒组件,以将顺序存储的组织样本提供在围绕旋转圆柱形滚筒旋转的样品储存带式固定器中。

    Biopsy Device with Vacuum Assisted Bleeding Control
    3.
    发明申请
    Biopsy Device with Vacuum Assisted Bleeding Control 有权
    具有真空辅助出血控制的活检装置

    公开(公告)号:US20070032742A1

    公开(公告)日:2007-02-08

    申请号:US11424576

    申请日:2006-06-16

    Abstract: A biopsy device and method are provided for obtaining a tissue sample, such as a breast tissue biopsy sample. The biopsy device includes a disposable probe assembly with an outer cannula having a distal piercing tip, a cutter lumen, and a cutter tube that rotates and translates past a side aperture in the outer cannula to sever a tissue sample. The biopsy device also includes a reusable hand piece with an integral motor and power source to make a convenient, untethered control for use with ultrasonic imaging. The reusable hand piece incorporates a probe oscillation mode to assist when inserting the distal piercing tip into tissue. External vacuum holes along the outer cannula (probe) that communicate with a vacuum and cutter lumen withdraw bodily fluids while a hemostatic disk-shaped ring pad around the probe applies compression to an external hole in the skin and absorbs fluids.

    Abstract translation: 提供活检装置和方法来获得诸如乳房组织活组织检查样本的组织样本。 活检装置包括具有外插管的一次性探针组件,该外套管具有远端穿刺尖端,切割器内腔和切割管,其旋转并平移穿过外插管中的侧孔以切断组织样本。 活检装置还包括具有集成电动机和电源的可重复使用的手持件,以便使用与超声成像一起使用的方便,无阻碍的控制。 可重复使用的手持件包含探头振动模式,以便将远端穿刺尖端插入组织中时有助于此。 沿着与真空和切割腔相通的外套管(探头)的外部真空孔可以抽出体液,而探针周围的止血盘形环垫压缩到皮肤的外部孔并吸收流体。

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