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143 条记录 (耗时 0.021 秒)

    Ultrasonic diagnostic imaging system for analysis of left ventricular function
    42.
    发明公开
    Ultrasonic diagnostic imaging system for analysis of left ventricular function 失效
    借助超声波的左心室的功能的图像表示

    公开(公告)号：EP0846442A3

    公开(公告)日：1999-05-06

    申请号：EP97308966.7

    申请日：1997-11-07

    申请人： ADVANCED TECHNOLOGY LABORATORIES, INC.

    发明人： Schwartz, Gary Allen

    IPC分类号： A61B8/08 ,  A61B8/06

    CPC分类号： A61B8/08 ,  A61B8/44 ,  Y10S128/916

    摘要： An ultrasonic diagnostic imaging system is provided for measuring the volume of a chamber of the heart or other organ or vessel. An ultrasonic transducer probe is used to scan the chamber with a plurality of spatially distinct scan planes. The pixels of the chamber volume of each scan plane are aggregated to provide a measure of the volume. In a preferred embodiment the chamber volume pixels are developed from Doppler signals from the fluid within the chamber, and are related to voxels within the chamber by weighting pixels in the scan planes in accordance with the voxel sampling afforded by the inter-plane separation.

    Medical ultrasonic diagnostic imaging system with scanning guide for three dimensional imaging
    45.
    发明公开
    Medical ultrasonic diagnostic imaging system with scanning guide for three dimensional imaging 失效
    的医用超声诊断成像系统的扫描导用于三维图像显示

    公开(公告)号：EP0803227A1

    公开(公告)日：1997-10-29

    申请号：EP97302842.6

    申请日：1997-04-25

    申请人： ADVANCED TECHNOLOGY LABORATORIES, INC.

    发明人： Gandini, Rebecca L. ,  Catuano, Delfin M. ,  Quistgaard, Jens Ulrich ,  Butler, Lisa M.

    IPC分类号： A61B8/14 ,  G01S7/52

    CPC分类号： G01S7/52079 ,  G01S7/52034 ,  G01S7/52074 ,  G01S15/8979 ,  G01S15/8993 ,  Y10S128/916

    摘要： An ultrasonic diagnostic imaging system is provided with a scanning guide which assists a user in conducting three dimensional ultrasonic scanning of a patient. The guide is visual or audible or both, and gives the physician a real time indicator by which to gauge the rate and duration of three dimensional ultrasonic scanning. In a constructed embodiment the scanning guide is modulated by a counter coupled to cine memory, in which image frames are stored for three dimensional processing. As the cine memory fills toward capacity with ultrasonic image frames, the scanning guide is modulated in correspondence with the filling of the memory. A visual indicator (100) of the ultrasonic frame sequence in memory is also provided, on which the user can move markers to eliminate frames at the beginning or end of the sequence from the three dimensional reconstruction.

    摘要翻译： 该系统包括在超声波探头用于扫描患者以获取来自所述主体的体积区域的超声回波信息。 存储装置存储信号，从超声回波信息中导出。 处理器处理所述超声回波的信息来形成体积区域的三维超声波表示。 扫描导是由用户可观察以帮助用户在从所述主体的体积区域的获取的回波信息期间扫描与所述探针的患者。 扫描指南哪个期间体积区域是将被扫描的时间辅助用户在确定性采矿包括设备。 该扫描装置包括用于引导向用户通知到具有体积区域的扫描期间所获取的超声回波信息量。

    Intraoperative ultrasound probe
    46.
    发明公开
    Intraoperative ultrasound probe 失效
    心脏手术器Ultraschallfühler。

    公开(公告)号：EP0599590A2

    公开(公告)日：1994-06-01

    申请号：EP93309307.2

    申请日：1993-11-22

    申请人： ADVANCED TECHNOLOGY LABORATORIES, INC.

    发明人： Nordgren, Timothy F. ,  Imling, Deborah K. ,  Ungari, Joseph L. ,  Killam, Donald Gilbert ,  McKeighen, Ronald E.

    IPC分类号： A61B8/00 ,  G10K11/00 ,  H01R9/07

    CPC分类号： H01R9/032 ,  A61B8/06 ,  A61B8/12 ,  A61B8/445 ,  H01R9/0515 ,  H01R12/62 ,  H01R2201/12

    摘要： 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.

    摘要翻译： 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。

    Ultrasonic doppler flow measurement system with tissue motion discrimination
    47.
    发明公开
    Ultrasonic doppler flow measurement system with tissue motion discrimination 失效
    Ultraschall-Doppler-Durchflussmesser mit Diskriminier der Gewebebewegung。

    公开(公告)号：EP0481691A1

    公开(公告)日：1992-04-22

    申请号：EP91309373.8

    申请日：1991-10-11

    申请人： ADVANCED TECHNOLOGY LABORATORIES, INC.

    发明人： Peterson, Roy Beck ,  Powers, Jeffry E.

    IPC分类号： A61B8/06 ,  G01F1/66

    CPC分类号： A61B8/06 ,  G01F1/663 ,  G01P5/241 ,  G01S15/52 ,  G01S15/582 ,  G01S15/8981

    摘要： 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.

    摘要翻译： 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。

    Ultrasonic imaging of biopsy needle
    48.
    发明公开
    Ultrasonic imaging of biopsy needle 失效
    Ultraschall Bilderzeugung von einer Biopsionadel。

    公开(公告)号：EP0453251A1

    公开(公告)日：1991-10-23

    申请号：EP91303404.7

    申请日：1991-04-17

    申请人： Advanced Technology Laboratories, Inc.

    发明人： Powers, Jeffry E.

    IPC分类号： A61B8/08 ,  A61B17/34

    CPC分类号： A61B8/0841 ,  A61B8/0833 ,  A61B17/3403 ,  A61B2017/22075 ,  A61B2017/3413 ,  A61B2090/3929

    摘要： A system for imaging a biopsy needle with ultrasound is shown in which the needle tip elicits a Doppler response through controlled reciprocation of the needle tip. In a preferred embodiment the biopsy needle includes a hollow cannula (40) which carries a removable stylet. Means for reciprocating (44) the stylet is coupled to the proximal end of the stylet, and the distal tip of the stylet is reciprocated at the distal end of the cannula. This motion is detected through Doppler interrogation of the body region at which the biopsy is to be performed, and the Doppler response of the needle tip in the image of the body region allows the needle tip to be monitored as it approaches the tissue to be biopsied.

    摘要翻译： 示出了用于使用超声波成像活检针的系统，其中针尖通过针尖的受控往复运动引起多普勒响应。 在优选实施例中，活检针包括携带可移除探针的中空套管（40）。 用于往复运动的装置（44）探针联接到探针的近端，探针的远端在套管的远端处往复运动。 通过进行活组织检查的身体区域的多普勒询问来检测该运动，并且针尖在身体区域的图像中的多普勒反应允许针尖在接近要组织的组织时被监测 。