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    • 81. 发明公开
    • Intraoperative ultrasound probe
    • 心脏手术器Ultraschallfühler。
    • EP0599590A2
    • 1994-06-01
    • EP93309307.2
    • 1993-11-22
    • ADVANCED TECHNOLOGY LABORATORIES, INC.
    • Nordgren, Timothy F.Imling, Deborah K.Ungari, Joseph L.Killam, Donald GilbertMcKeighen, Ronald E.
    • A61B8/00G10K11/00H01R9/07
    • H01R9/032A61B8/06A61B8/12A61B8/445H01R9/0515H01R12/62H01R2201/12
    • An intraoperative ultrasonic transducer probe is described comprising a handle section (20) and a transducer section (22) which resemble a tiny leg and foot. The two sections are obtusely angled relative to each other so that the physician may continue to clearly view the surgical site while holding and manipulating the probe. The extension of the transducer section away from its point of attachment to the handle section results in the toe (18) of the foot being insertable under unincised tissue, enabling the surgeon to ultrasonically examine organs and tissue peripheral to the surgical site and to follow a vessel even beyond the incision. The transducer section is completely encapsulated in a rubberlike material (44) which electrically insulates the transducer from the patient, enables the probe to be easily sterilized, and further provides an inherent standoff between the transducer and the contact surface of the probe. Thus, the transducer can be focused immediately at the skin line of the organ or vessel which is in contact with the probe. The probe can be easily assembled by providing termination assemblies for attaching coaxial cable conductors to the printed circuit board assembly of the probe.
    • 描述了一种术中超声换能器探针,其包括手柄部分(20)和类似于小腿和脚的换能器部分(22)。 两个部分相对于彼此是钝的,使得医师可以在保持和操纵探针的同时继续清楚地观察手术部位。 换能器部分远离其附接点到手柄部分的延伸导致足部的脚趾(18)可插入到未经处理的组织中,使得外科医生能够超声检查外科手术部位周围的器官和组织,并遵循 血管甚至超出切口。 换能器部分完全封装在橡胶状材料(44)中,该材料使换能器与患者电绝缘,使探针容易消毒,并进一步提供换能器与探针接触表面之间的固有间隙。 因此,换能器可以立即聚焦在与探针接触的器官或血管的皮肤线上。 可以通过提供用于将同轴电缆导体连接到探针的印刷电路板组件的终端组件来容易地组装探针。
    • 82. 发明公开
    • Ultrasonic doppler flow measurement system with tissue motion discrimination
    • Ultraschall-Doppler-Durchflussmesser mit Diskriminier der Gewebebewegung。
    • EP0481691A1
    • 1992-04-22
    • EP91309373.8
    • 1991-10-11
    • ADVANCED TECHNOLOGY LABORATORIES, INC.
    • Peterson, Roy BeckPowers, Jeffry E.
    • A61B8/06G01F1/66
    • A61B8/06G01F1/663G01P5/241G01S15/52G01S15/582G01S15/8981
    • An ultrasonic diagnostic system for measuring fluid flow velocities through Doppler techniques is provided which eliminates the effects of tissue motion from fluid flow velocity information. Doppler information signals are discriminated to determine the presence of signal components resulting from moving tissue, which signal components are located at frequencies of a Doppler spectrum other than the predetermined frequency location of stationary tissue signals. The tissue motion signal components present are shifted to the predetermined frequency location and removed by high pass filtering the Doppler signals. The remaining signals are then shifted back to their original frequency location and transmitted to a Doppler velocity estimator for further processing of the fluid flow velocity information and ultimate display of the information. To overcome problems of Doppler frequency inaccuracies at discrete spatial positions, the Doppler signals from a plurality of neighbouring spatial locations are examined in the aggregate to determine the frequency location of tissue motion signal components.
    • 提供了一种用于通过多普勒技术测量流体流速的超声波诊断系统,其消除了来自流体流速信息的组织运动的影响。 鉴别多普勒信息信号以确定由移动组织产生的信号分量的存在,该信号分量位于除了静止组织信号的预定频率位置之外的多普勒频谱的频率处。 存在的组织运动信号分量被移动到预定的频率位置,并通过高通滤波多普勒信号去除。 然后将剩余的信号移回到它们的原始频率位置,并传输到多普勒速度估计器,以进一步处理流体流速信息和信息的最终显示。 为了克服离散空间位置处的多普勒频率不准确的问题,从多个相邻空间位置的多普勒信号被集中检查以确定组织运动信号分量的频率位置。