Use of magnetic field of magnetic resonance imaging devices as the
source of the magnetic field of electromagnetic transducers
    2.
    发明授权
    Use of magnetic field of magnetic resonance imaging devices as the source of the magnetic field of electromagnetic transducers 失效
    磁共振成像装置的磁场作为电磁传感器磁场的来源使用

    公开(公告)号:US5131392A

    公开(公告)日:1992-07-21

    申请号:US479415

    申请日:1990-02-13

    摘要: A magnetic resonance imaging device is used to provide the static magnetic field for transducers. The static magnetic field in combination with electric current pulses energize phased arrayed transducers to generate acoustic waves or motion. The transducers can be arranged in the magnetic resonance imaging device static magnetic field to focus acoustic shock waves for the disintegration of target calculi in extracorporeal shock wave lithotripsy. The magnetic resonance imaging device is also used for target localization and monitoring of the mechanical energy effects of the transducers. In further embodiments, the transducers include coils that are implantable within a subject body and can be moved in the magnetic resonance imaging device's static magnetic field.

    摘要翻译: 磁共振成像装置用于为换能器提供静态磁场。 与电流脉冲相结合的静磁场激励相控阵列换能器以产生声波或运动。 传感器可以布置在磁共振成像设备的静磁场中,以将声波冲击波聚焦在体外冲击波碎石术中目标结石的分解。 磁共振成像装置还用于目标定位和监测换能器的机械能量效应。 在另外的实施例中,换能器包括可植入物体内并可在磁共振成像装置的静磁场中移动的线圈。

    Magnetic resonance scanner with electromagnetic position and orientation tracking device

    公开(公告)号:US07081748B2

    公开(公告)日:2006-07-25

    申请号:US11068621

    申请日:2005-02-28

    申请人: Peter D. Jakab

    发明人: Peter D. Jakab

    IPC分类号: G01V3/00 A61B5/055

    CPC分类号: G01R33/285

    摘要: A system for combining electromagnetic position and orientation tracking with magnetic resonance scanner is provided. One embodiment includes a magnetic resonance scanner defining a reference coordinate system for scanning a target. Coupled to the magnetic resonance scanner is a magnetic field source which produces a magnetic field. The magnetic field is sensed by a magnetic field sensor which produces a signal proportional to the magnetic field. The magnetic field sensor has a location relative to the reference coordinate system. The location of the magnetic field sensor relative to the reference coordinate system of the magnetic resonance scanner is determined by a location tracking device using at least a line segment model of the magnetic field source and the signal from the magnetic field sensor.

    System for monitoring a position of a medical instrument with respect to a patient's head
    5.
    发明授权
    System for monitoring a position of a medical instrument with respect to a patient's head 有权
    用于监测医疗器械相对于患者头部的位置的系统

    公开(公告)号:US06694167B1

    公开(公告)日:2004-02-17

    申请号:US09643608

    申请日:2000-08-22

    IPC分类号: A61B505

    摘要: A system is disclosed for monitoring the position of a medical instrument with respect to a patient's body and for displaying at least one of a plurality of prerecorded images of said body responsive to the position of said medical instrument. In one embodiment the system includes a reference unit secured from movement with respect to the patient's body such that said reference unit is substantially immobile with respect to a target operation site. The system also includes a remote unit for attachment to the medical instrument. A field generator may be associated with one of the units for generating a position characteristic field in an area including the target operation site. One or more field sensors may be associated with either of the units responsive to the presence of the position characteristic field for producing one or more sensor output signals representative of said sensed field. A position detector in communication with the sensor output signal produces position data representative of the position of the remote unit with respect to the reference unit. An output display in communication with the position detector displays at least one of the prerecorded images responsive to the position data.

    摘要翻译: 公开了一种用于监测医疗器械相对于患者身体的位置并根据所述医疗器械的位置显示所述身体的多个预先记录的图像中的至少一个的系统。 在一个实施例中,该系统包括参考单元,该参考单元相对于患者身体移动而固定,使得所述参考单元相对于目标操作现场基本上是不动的。 该系统还包括用于附接到医疗器械的远程单元。 场发生器可以与用于在包括目标操作现场的区域中产生位置特征字段的单元中的一个相关联。 一个或多个场传感器可以与响应于存在位置特性场的单元中的任一个相关联,以产生表示所述感测场的一个或多个传感器输出信号。 与传感器输出信号通信的位置检测器产生表示远程单元相对于参考单元的位置的位置数据。 与位置检测器通信的输出显示器响应于位置数据显示至少一个预先记录的图像。

    Position tracking and imaging system for use in medical applications
    6.
    发明授权
    Position tracking and imaging system for use in medical applications 失效
    位置跟踪和成像系统用于医疗应用

    公开(公告)号:US06341231B1

    公开(公告)日:2002-01-22

    申请号:US09686188

    申请日:2000-10-11

    IPC分类号: A61B505

    摘要: A system is disclosed for monitoring the position of a medical instrument with respect to a patient's body and for displaying at least one of a plurality of prerecorded images of said body responsive to the position of said medical instrument. In one embodiment the system includes a reference unit secured from movement with respect to the patient's body such that said reference unit is substantially immobile with respect to a target operation site. The system also includes a remote unit for attachment to the medical instrument. A field generator may be associated with one of the units for generating a position characteristic field in an area including the target operation site. One or more field sensors may be associated with either of the units responsive to the presence of the position characteristic field for producing one or more sensor output signals representative of said sensed field. A position detector in communication with the sensor output signal produces position data representative of the position of the remote unit with respect to the reference unit. An output display in communication with the position detector displays at least one of the prerecorded images responsive to the position data.

    摘要翻译: 公开了一种用于监测医疗器械相对于患者身体的位置并根据所述医疗器械的位置显示所述身体的多个预先记录的图像中的至少一个的系统。 在一个实施例中,该系统包括参考单元,该参考单元相对于患者身体移动而固定,使得所述参考单元相对于目标操作位置基本上是不动的。 该系统还包括用于附接到医疗器械的远程单元。 场发生器可以与用于在包括目标操作现场的区域中产生位置特征字段的单元之一相关联。 一个或多个场传感器可以与响应于存在位置特性场的单元中的任一个相关联,以产生表示所述感测场的一个或多个传感器输出信号。 与传感器输出信号通信的位置检测器产生表示远程单元相对于参考单元的位置的位置数据。 与位置检测器通信的输出显示器响应于位置数据显示至少一个预先记录的图像。

    Magnetic resonance scanner with electromagnetic position and orientation tracking device
    8.
    发明授权
    Magnetic resonance scanner with electromagnetic position and orientation tracking device 失效
    磁共振扫描仪带电磁位置和方向跟踪装置

    公开(公告)号:US06879160B2

    公开(公告)日:2005-04-12

    申请号:US10390432

    申请日:2003-03-17

    申请人: Peter D. Jakab

    发明人: Peter D. Jakab

    CPC分类号: G01R33/285

    摘要: A system for combining electromagnetic position and orientation tracking with magnetic resonance scanner is provided. One embodiment includes a magnetic resonance scanner defining a reference coordinate system for scanning a target. Coupled to the magnetic resonance scanner is a magnetic field source which produces a magnetic field. The magnetic field is sensed by a magnetic field sensor which produces a signal proportional to the magnetic field. The magnetic field sensor has a location relative to the reference coordinate system. The location of the magnetic field sensor relative to the reference coordinate system of the magnetic resonance scanner is determined by a location tracking device using at least a line segment model of the magnetic field source and the signal from the magnetic field sensor.

    摘要翻译: 提供了一种用于将电磁位置和方向跟踪与磁共振扫描仪组合的系统。 一个实施例包括限定用于扫描目标的参考坐标系的磁共振扫描仪。 耦合到磁共振扫描器是产生磁场的磁场源。 磁场由磁场传感器感测,该磁场传感器产生与磁场成比例的信号。 磁场传感器具有相对于参考坐标系的位置。 磁场传感器相对于磁共振扫描仪的参考坐标系的位置由位置跟踪装置使用至少一个磁场源的线段模型和来自磁场传感器的信号来确定。

    Registration system for use with position tracking and imaging system
for use in medical applications
    9.
    发明授权
    Registration system for use with position tracking and imaging system for use in medical applications 失效
    用于医疗应用的位置跟踪和成像系统的注册系统

    公开(公告)号:US5800352A

    公开(公告)日:1998-09-01

    申请号:US637131

    申请日:1996-04-24

    摘要: A system is disclosed for monitoring the position of a medical instrument with respect to a patient's body and for displaying at least one of a plurality of prerecorded images of said body responsive to the position of said medical instrument. In one embodiment the system includes a reference unit secured from movement with respect to the patient's body such that said reference unit is substantially immobile with respect to a target operation site. The system also includes a remote unit for attachment to the medical instrument. A field generator may be associated with one of the units for generating a position characteristic field in an area including the target operation site. One or more field sensors may be associated with either of the units responsive to the presence of the position characteristic field for producing one or more sensor output signals representative of said sensed field. A position detector in communication with the sensor output signal produces position data representative of the position of the remote unit with respect to the reference unit. An output display in communication with the position detector displays at least one of the prerecorded images responsive to the position data.

    摘要翻译: 公开了一种用于监测医疗器械相对于患者身体的位置并根据所述医疗器械的位置显示所述身体的多个预先记录的图像中的至少一个的系统。 在一个实施例中,该系统包括参考单元,该参考单元相对于患者身体移动而固定,使得所述参考单元相对于目标操作现场基本上是不动的。 该系统还包括用于附接到医疗器械的远程单元。 场发生器可以与用于在包括目标操作现场的区域中产生位置特征字段的单元中的一个相关联。 一个或多个场传感器可以与响应于存在位置特性场的单元中的任一个相关联,以产生表示所述感测场的一个或多个传感器输出信号。 与传感器输出信号通信的位置检测器产生表示远程单元相对于参考单元的位置的位置数据。 与位置检测器通信的输出显示器响应于位置数据显示至少一个预先记录的图像。

    Position tracking and imaging system for use in medical applications
    10.
    发明授权
    Position tracking and imaging system for use in medical applications 有权
    位置跟踪和成像系统用于医疗应用

    公开(公告)号:US06687531B1

    公开(公告)日:2004-02-03

    申请号:US09643271

    申请日:2000-08-22

    IPC分类号: A61B505

    摘要: A system is disclosed for monitoring the position of a medical instrument with respect to a patient's body and for displaying at least one of a plurality of prerecorded images of said body responsive to the position of said medical instrument. In one embodiment the system includes a reference unit secured from movement with respect to the patient's body such that said reference unit is substantially immobile with respect to a target operation site. The system also includes a remote unit for attachment to the medical instrument. A field generator may be associated with one of the units for generating a position characteristic field in an area including the target operation site. One or more field sensors may be associated with either of the units responsive to the presence of the position characteristic field for producing one or more sensor output signals representative of said sensed field. A position detector in communication with the sensor output signal produces position data representative of the position of the remote unit with respect to the reference unit. An output display in communication with the position detector displays at least one of the prerecorded images responsive to the position data.

    摘要翻译: 公开了一种用于监测医疗器械相对于患者身体的位置并根据所述医疗器械的位置显示所述身体的多个预先记录的图像中的至少一个的系统。 在一个实施例中,该系统包括参考单元,该参考单元相对于患者身体移动而固定,使得所述参考单元相对于目标操作现场基本上是不动的。 该系统还包括用于附接到医疗器械的远程单元。 场发生器可以与用于在包括目标操作现场的区域中产生位置特征字段的单元中的一个相关联。 一个或多个场传感器可以与响应于存在位置特性场的单元中的任一个相关联,以产生表示所述感测场的一个或多个传感器输出信号。 与传感器输出信号通信的位置检测器产生表示远程单元相对于参考单元的位置的位置数据。 与位置检测器通信的输出显示器响应于位置数据显示至少一个预先记录的图像。