Phased array transducer construction
    51.
    发明公开
    Phased array transducer construction 失效
    相位阵列传感器结构

    公开(公告)号:EP0140363A3

    公开(公告)日:1987-03-04

    申请号:EP84113022

    申请日:1984-10-29

    IPC分类号: G10K11/34

    CPC分类号: B06B1/0622 Y10T29/42

    摘要: A method of manufacturing a phased array ultrasound transducer, and the transducer manufactured by the inventive method are described. In the method, a piezoelectric crystal is soldered to the edges of a pair of double sided printed circuit boards, each of which has traces on either side. Then, a backing material is poured to secure the crystal and boards, and a saw is used to define the elements of the transducer.

    摘要翻译: 描述了制造相控阵超声波换能器的方法和通过本发明方法制造的换能器。 在该方法中,将压电晶体焊接到一对双面印刷电路板的边缘,每个双面印刷电路板在每一侧具有痕迹。 然后,浇注背衬材料以固定晶体和板,并且使用锯来限定换能器的元件。

    Needle guide for use with medical ultrasonic scanning apparatus
    52.
    发明公开
    Needle guide for use with medical ultrasonic scanning apparatus 失效
    医用超声波扫描仪使用指南

    公开(公告)号:EP0102800A3

    公开(公告)日:1987-01-14

    申请号:EP83304839

    申请日:1983-08-22

    发明人: Harui, Norio

    IPC分类号: A61B10/00

    摘要: A needle guide for use with a medical ultrasonic scanning apparatus includes a pivoting plate on a fixed mounting plate. The mounting plate is attached to an ultrasonic scanhead whereby a surface of the mounting plate is in the plane of the ultrasound scan. An adjustable pivoting plate on the mounting plate includes at least one needle aligner, which preferably has a groove formed therein. The pivoting plate can be pivoted and locked into position on the mounting plate. An idler plate, containing an idler roller is spring mounted on the pivoting plate. The idler plate can be pivoted, whereby the idler roller moves away from the guide needle aligners. A raised wall on the pivoting plate prevents an improperly placed needle from puncturing a sterile sheath applied over the scanhead, such as in a brain scan. Thus a needle, such as a biopsy needle can be placed between the idler roller and the needle aligner and will be held in place by the spring tension on the idler roller.

    Fully wetted mechanical ultrasound scanhead
    54.
    发明公开
    Fully wetted mechanical ultrasound scanhead 失效
    完全润湿机械Ultraschallabtastkopf。

    公开(公告)号:EP0157408A2

    公开(公告)日:1985-10-09

    申请号:EP85103945.3

    申请日:1985-04-01

    发明人: Putzke, Dwayne H.

    IPC分类号: G10K11/00 A61B8/00

    CPC分类号: G10K11/355

    摘要: A fully wetted ultrasound scan head (10) for medical applications is described in which the motor (18) and the rotor (12) are enclosed within a sealed housing filled with ultrasound coupling fluid. The invention includes a drive belt (16) to drive the rotor from the motor, rather than a precision drive means. Speed adjustment means, including an encoder disk mounted on the rotor, provide feedback for an electronic speed controller. Accordingly, the speed of the motor can be adjusted as a direct consequence of the actual speed of the rotor.

    Ultrasound transducer with improved vibrational modes
    55.
    发明公开
    Ultrasound transducer with improved vibrational modes 失效
    Ultraschallwandler mit verb desserten Schwingungsweisen。

    公开(公告)号:EP0142215A2

    公开(公告)日:1985-05-22

    申请号:EP84303562.7

    申请日:1984-05-25

    IPC分类号: G10K11/34 H01L41/08

    CPC分类号: B06B1/0622

    摘要: The transducer of the present invention is diced into subelements which have a height-to-width ratio which determines the modality of their vibration. The subelements are then electrically connected to provide a transducer having the desired electrical configuration, i.e., an annular array transducer. Using the present invention, the electro-acoustic characteristics of the transducer are not determinitive of the vibrational characteristics of the individual subelements.

    摘要翻译: 本发明的换能器被切割成具有确定其振动模态的高度 - 宽度比的子元件。 子元件然后电连接以提供具有所需电气构造的换能器,即环形阵列换能器。 使用本发明,换能器的电声特性不能确定各个子元件的振动特性。

    Needle guide for use with medical ultrasonic scanning apparatus
    57.
    发明公开
    Needle guide for use with medical ultrasonic scanning apparatus 失效
    套管导向与超声波扫描仪使用。

    公开(公告)号:EP0102800A2

    公开(公告)日:1984-03-14

    申请号:EP83304839.0

    申请日:1983-08-22

    发明人: Harui, Norio

    IPC分类号: A61B10/00

    摘要: A needle guide for use with a medical ultrasonic scanning apparatus includes a pivoting plate on a fixed mounting plate. The mounting plate is attached to an ultrasonic scanhead whereby a surface of the mounting plate is in the plane of the ultrasound scan. An adjustable pivoting plate on the mounting plate includes at least one needle aligner, which preferably has a groove formed therein. The pivoting plate can be pivoted and locked into position on the mounting plate. An idler plate, containing an idler roller is spring mounted on the pivoting plate. The idler plate can be pivoted, whereby the idler roller moves away from the guide needle aligners. A raised wall on the pivoting plate prevents an improperly placed needle from puncturing a sterile sheath applied over the scanhead, such as in a brain scan. Thus a needle, such as a biopsy needle can be placed between the idler roller and the needle aligner and will be held in place by the spring tension on the idler roller.

    Beamforming apparatus and method for ultrasonic imaging systems
    58.
    发明公开
    Beamforming apparatus and method for ultrasonic imaging systems 失效
    在超声成像系统产生辐射的方法和设备。

    公开(公告)号:EP0053834A1

    公开(公告)日:1982-06-16

    申请号:EP81110250.8

    申请日:1981-12-08

    IPC分类号: G10K11/34 G01S15/89

    摘要: A scanner includes a scan head having a linear array of transducers Xn, and a transmitter 106 which excites the transducers in response to transmit signals TRn from a reference generator 110 so that the transducers emit a plurality of successive bursts of ultrasonic energy, each burst producing a transmitted beam which is steered and focused along a radially-extending scan line. To effect received beam steering and focusing, received signals Sn from the transducers are supplied to a processor 112 along with associated in-phase binary reference signals bn(R) and quadrature binary reference signals bn(l). Processor 112 is responsive to WRITE SELECT, READ SELECT and SAMPLE signals from reference generator 110 to correlate each signal Sn with its associated reference signals during a plurality of successive resolution windows, each of which corresponds to a distinct incremental area along a scan line, so as to provide in-phase and quadrature output signals Re and lm each representing a response of the array to reflections from successive incremental areas along a scan line. Signals Re and lm are combined by processors 114 and 116 to develop output signals A and 0 representing, respectively, the amplitude and phase of returns from successive incremental areas along a scan line. Information for transmitted and received beam steering and focusing is stored in a phase pattern memory 118A, and extracted therefrom by a controller 118 in a predetermined order and supplied to reference generator