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    Ultrasonic apparatus for thermotherapy with variable frequency for suppressing cavitation
    1.
    发明授权
    Ultrasonic apparatus for thermotherapy with variable frequency for suppressing cavitation 失效
    用于抑制空化的具有可变频率的热疗的超声波装置

    公开(公告)号：US5694936A

    公开(公告)日：1997-12-09

    申请号：US528263

    申请日：1995-09-14

    申请人： Katsuhiko Fujimoto ,  Yoshiharu Ishibashi ,  Mariko Shibata ,  Takuji Suzuki ,  Satoshi Aida ,  Shiroh Saitoh ,  Kazuya Okamoto

    发明人： Katsuhiko Fujimoto ,  Yoshiharu Ishibashi ,  Mariko Shibata ,  Takuji Suzuki ,  Satoshi Aida ,  Shiroh Saitoh ,  Kazuya Okamoto

    IPC分类号： A61B17/00 ,  A61B17/22 ,  A61N7/00 ,  A61N7/02

    CPC分类号： A61N7/02 ,  A61B2017/00176 ,  A61B2017/22009 ,  A61N2007/0065 ,  A61N2007/0073

    摘要： An ultrasonic diagnosis apparatus for raising tissue temperature for hypothermic treatments, including an ultrasonic source for generating an ultrasonic treatment wave and a driving means for driving the ultrasonic source such that a frequency of the ultrasonic treatment wave generated by the ultrasonic source changes with time. The frequency of the ultrasonic treatment wave is changed along the time axis. By this change in frequency, some bubbles formed by cavitation as a result of the ultrasonic treatment wave are divided, and some bubbles are collapsed and therefore eliminated. Side effect cavitation and spread of a thermal degeneration area is suppressed, and thermal degeneration can be accurately induced in a desired area, thereby realizing a reliable, safe ultrasonic thermotherapy. Since cavitation is positively suppressed, the total treatment period can be shortened because cavitation would otherwise interfere with and slow down the thermal degeneration process. Therefore, treatment throughput can be improved as compared with a case in which cavitation is left to naturally break and disappear.

    摘要翻译： 一种用于提高低温治疗的组织温度的超声波诊断装置，包括用于产生超声波处理波的超声波源和用于驱动超声波源的驱动装置，使得由超声波源产生的超声波处理波的频率随时间而变化。 超声波处理波的频率沿时间轴变化。 通过这种频率变化，由于超声波处理波而产生的由空穴形成的一些气泡被分割，并且一些气泡被折叠并因此被消除。 抑制热变性区域的副作用空化和扩散，可以在期望的区域中精确地诱导热变性，从而实现可靠，安全的超声波热疗。 由于气穴被积极地抑制，所以总处理时间可以缩短，因为空化会妨碍和减慢热变性过程。 因此，与空穴自然断裂和消失的情况相比，能够提高处理量。

    ULTRASONIC TREATMENT APPARATUS
    2.
    发明申请
    ULTRASONIC TREATMENT APPARATUS 审中-公开
    超声处理设备

    公开(公告)号：US20110213248A1

    公开(公告)日：2011-09-01

    申请号：US13027626

    申请日：2011-02-15

    申请人： Miyuki MURAKAMI ,  Hiroshi TSURUTA ,  Yoshiharu ISHIBASHI

    发明人： Miyuki MURAKAMI ,  Hiroshi TSURUTA ,  Yoshiharu ISHIBASHI

    IPC分类号： A61B8/14 ,  A61N7/00

    CPC分类号： A61N7/022 ,  A61B8/12 ,  A61B8/4488 ,  A61N2007/0065 ,  A61N2007/0073 ,  A61N2007/0078

    摘要： An ultrasonic treatment apparatus includes a sound source, a frequency setter and a drive signal generator. The sound source emits ultrasonic waves. The ultrasonic waves are finite amplitude acoustic waves including a first signal frequency and a second signal frequency. The frequency setter sets the first signal frequency and the second signal frequency in accordance with a target position of a treatment object with respect to the sound source. The drive signal generator is configured to generate a drive signal and to drive the sound source. The drive signal is a signal which causes the sound source to emit the ultrasonic waves.

    摘要翻译： 超声波处理装置包括声源，频率设定器和驱动信号发生器。 声源发出超声波。 超声波是包括第一信号频率和第二信号频率的有限振幅声波。 频率设定器根据处理对象相对于声源的目标位置来设定第一信号频率和第二信号频率。 驱动信号发生器被配置为产生驱动信号并驱动声源。 驱动信号是使声源发出超声波的信号。

    Ultrasonic wave medical treatment apparatus suitable for use under guidance of magnetic resonance imaging
    6.
    发明授权
    Ultrasonic wave medical treatment apparatus suitable for use under guidance of magnetic resonance imaging 失效
    超声波医疗器械适用于磁共振成像引导下使用

    公开(公告)号：US5897495A

    公开(公告)日：1999-04-27

    申请号：US727036

    申请日：1996-10-08

    申请人： Satoshi Aida ,  Mariko Shibata ,  Katsuhiko Fujimoto ,  Yoshiharu Ishibashi ,  Takuji Suzuki ,  Yasutoshi Ishihara ,  Kazuya Okamoto

    发明人： Satoshi Aida ,  Mariko Shibata ,  Katsuhiko Fujimoto ,  Yoshiharu Ishibashi ,  Takuji Suzuki ,  Yasutoshi Ishihara ,  Kazuya Okamoto

    IPC分类号： A61B5/055 ,  A61B18/00 ,  A61B19/00 ,  A61F7/00 ,  A61N7/02 ,  G01R33/28

    CPC分类号： A61N7/022 ,  A61N7/02 ,  G01R33/28 ,  A61B2090/374

    摘要： An ultrasonic wave medical treatment apparatus capable of preventing the displacement of the focal point of the ultrasonic waves from the treatment target portion within the patient, eliminating a need for re-positioning of the ultrasonic wave applicator with respect to the patient, and taking MR images to be utilized during the treatment at a high resolution. In this apparatus, the ultrasonic wave applicator can be integrally incorporated within a treatment table for carrying the patient into the MRI gantry for taking the MR images. The surface coil for taking the MR images can be provided on a surface film of a water bag in the ultrasonic wave applicator, or on a body cavity probe on which the ultrasonic transducer is also provided. The mixing rate of the coupling fluid can be adjusted, and the impedance matching between the ultrasonic transducer and the driving circuit can be maintained by minimizing the reflected electric power from the ultrasonic transducer.

    摘要翻译： 一种超声波医疗处理装置，其能够防止超声波的焦点从患者体内的治疗对象部位移位，消除了超声波施加器相对于患者重新定位的需要，并且取MR图像 以高分辨率在治疗期间使用。 在该装置中，超声波施加器可以整体地结合在处理台内，用于将病人携带到用于拍摄MR图像的MRI台架中。 用于拍摄MR图像的表面线圈可以设置在超声波施加器中的水袋的表面膜上，也可以设置在也设置有超声波换能器的体腔探针上。 可以调节耦合流体的混合速率，并且可以通过使来自超声换能器的反射电力最小化来维持超声换能器与驱动电路之间的阻抗匹配。

    Ultrasonic wave medical treatment apparatus suitable for use under guidance of magnetic resonance imaging
    8.
    发明授权
    Ultrasonic wave medical treatment apparatus suitable for use under guidance of magnetic resonance imaging 失效
    超声波医疗器械适用于磁共振成像引导下使用

    公开(公告)号：US5590653A

    公开(公告)日：1997-01-07

    申请号：US207670

    申请日：1994-03-09

    申请人： Satoshi Aida ,  Mariko Shibata ,  Katsuhiko Fujimoto ,  Yoshiharu Ishibashi ,  Takuji Suzuki ,  Yasutoshi Ishihara ,  Kazuya Okamoto

    发明人： Satoshi Aida ,  Mariko Shibata ,  Katsuhiko Fujimoto ,  Yoshiharu Ishibashi ,  Takuji Suzuki ,  Yasutoshi Ishihara ,  Kazuya Okamoto

    IPC分类号： A61B5/055 ,  A61B18/00 ,  A61B19/00 ,  A61F7/00 ,  A61N7/02 ,  G01R33/28

    CPC分类号： A61N7/022 ,  A61N7/02 ,  G01R33/28 ,  A61B2090/374

    摘要： An ultrasonic wave medical treatment apparatus capable of preventing the displacement of the focal point of the ultrasonic waves from the treatment target portion within the patient, eliminating a need for re-positioning of the ultrasonic wave applicator with respect to the patient, and taking MR images to be utilized during the treatment at a high resolution. In this apparatus, the ultrasonic wave applicator can be integrally incorporated within a treatment table for carrying the patient into the MRI gantry for taking the MR images. The surface coil for taking the MR images can be provided on a surface film of a water bag in the ultrasonic wave applicator, or on a body cavity probe on which the ultrasonic transducer is also provided. The mixing rate of the coupling fluid can be adjusted, and the impedance matching between the ultrasonic transducer and the driving circuit can be maintained by minimizing the reflected electric power from the ultrasonic transducer.

    摘要翻译： 一种超声波医疗处理装置，其能够防止超声波的焦点从患者体内的治疗对象部位移位，消除了超声波施加器相对于患者重新定位的需要，并且取MR图像 以高分辨率在治疗期间使用。 在该装置中，超声波施加器可以整体地结合在处理台内，用于将病人携带到用于拍摄MR图像的MRI台架中。 用于拍摄MR图像的表面线圈可以设置在超声波施加器中的水袋的表面膜上，也可以设置在也设置有超声波换能器的体腔探针上。 可以调节耦合流体的混合速率，并且可以通过使来自超声换能器的反射电力最小化来维持超声换能器与驱动电路之间的阻抗匹配。

    Method and apparatus for ultrasonic wave medical treatment using computed tomography
    9.
    发明授权
    Method and apparatus for ultrasonic wave medical treatment using computed tomography 失效
    使用计算机断层扫描的超声波医疗治疗方法和装置

    公开(公告)号：US5485839A

    公开(公告)日：1996-01-23

    申请号：US300199

    申请日：1994-09-02

    申请人： Satoshi Aida ,  Mariko Shibata ,  Katsuhiko Fujimoto ,  Yoshiharu Ishibashi ,  Takuji Suzuki ,  Kozo Sato ,  Ayao Itoh

    发明人： Satoshi Aida ,  Mariko Shibata ,  Katsuhiko Fujimoto ,  Yoshiharu Ishibashi ,  Takuji Suzuki ,  Kozo Sato ,  Ayao Itoh

    IPC分类号： A61B17/00 ,  A61B5/055 ,  A61B17/22 ,  A61B17/225 ,  A61B18/00 ,  A61B19/00 ,  A61N7/02 ,  G01R33/28 ,  A61B6/00

    CPC分类号： G01R33/28 ,  A61B17/2256 ,  A61B2017/00022 ,  A61B2090/374 ,  A61B90/37 ,  A61N7/02 ,  G01R33/285

    摘要： An ultrasonic wave medical treatment in which the position of the focal point of the ultrasonic waves, the temperature in a vicinity of the object to be treated, and the effect of the treatment can be determined easily and accurately. The three-dimensional image information of the object to be treated obtained by a computed tomography device is utilized in locating the focal point. In case of using a nuclear magnetic resonance imaging device as the computed tomography device, the T2 weighted image and the chemical shift data can be used in checking the effect of the treatment and the temperature in a vicinity of the object. The endocavitary probe equipped with temperature and intensity sensors may also be used. The ultrasound tomographic images obtained by the ultrasound tomographic imaging device may also be used in conjunction with the three-dimensional image information. Sequential shifting of the focal point of the ultrasonic waves may be employed to reduce adverse influence due to the cavitation.

    摘要翻译： 可以容易且精确地确定其中超声波的焦点的位置，待处理对象附近的温度和处理的效果的超声波医疗处理。 通过计算机断层摄影装置获得的待处理对象的三维图像信息用于定位焦点。 在使用核磁共振成像装置作为计算机断层成像装置的情况下，可以使用T2加权图像和化学位移数据来检查处理的效果和物体附近的温度。 还可以使用配备有温度和强度传感器的内窥镜探头。 由超声波断层摄影装置得到的超声波断层图像也可以与三维图像信息一起使用。 可以使用超声波的焦点的顺序移位来减少由于空化引起的不利影响。