Frequency optimization in ultrasound treatment

    公开(公告)号:US11872412B2

    公开(公告)日:2024-01-16

    申请号:US16112150

    申请日:2018-08-24

    IPC分类号: A61N7/00 A61N7/02 A61B90/00

    摘要: A system and method for selecting a patient-specific frequency for ultrasound therapy of a target within the patient are provided. The method includes: (a) for at least one segment of an ultrasound transducer and for each of a plurality of ultrasound frequencies within a test range, sonicating the target and measuring a parameter correlated with an amount of ultrasound energy absorbed in the target; and (b) for each said at least one segment, selecting for subsequent ultrasound therapy, among the frequencies within the test range, a frequency corresponding to a value of the measured parameter that itself corresponds to a maximum amount of ultrasound energy absorbed in the target.

    ULTRASOUND FOCUSING IN DYNAMICALLY CHANGING MEDIA

    公开(公告)号:US20190175954A1

    公开(公告)日:2019-06-13

    申请号:US15837365

    申请日:2017-12-11

    IPC分类号: A61N7/02

    摘要: Various approaches to generating and maintaining an ultrasound focus at a target region include configuring a controller to cause transmission of treatment ultrasound pulses from a transducer having multiple transducer elements; cause the transducer to transmit focusing ultrasound pulses to the target region and generate an acoustic reflector therein; measure reflections of the focusing ultrasound pulses from the acoustic reflector; based at least in part on the measured reflections, adjust a parameter value associated with one or more transducer elements so as to maintain and/or improve the ultrasound focus at the target region.

    Focused ultrasound system with far field tail suppression
    9.
    发明授权
    Focused ultrasound system with far field tail suppression 有权
    聚焦超声系统具有远场尾部抑制

    公开(公告)号:US08235901B2

    公开(公告)日:2012-08-07

    申请号:US11536619

    申请日:2006-09-28

    IPC分类号: A61B8/00

    摘要: A method for treating body tissue using acoustic energy includes identifying a target focal zone of tissue to be treated, delivering a first pulse of acoustic energy from a transducer to generate bubbles in a tissue region located distally, relative to the transducer, of a focal center of the target focal zone, and delivering a second pulse of acoustic energy from the transducer in the presence of the bubbles generated by the first pulse, the second pulse focused at the focal center to generate thermal ablation energy. In a further embodiment, a method of treating body tissue using ultrasound energy includes identifying a target focal zone to be treated and delivering a plurality of pulses of acoustic ablation energy to locations distributed symmetrically in or proximate a focal plane about the focal center of the target focal zone.

    摘要翻译: 使用声能来治疗身体组织的方法包括识别要治疗的组织的目标聚焦区域,从换能器输送第一声学能量脉冲,以在相对于换能器的远端位于组织区域中的中心位置产生气泡 并且在存在由第一脉冲产生的气泡的情况下传送来自换能器的第二脉冲声能,第二脉冲聚焦在焦点中心以产生热消融能量。 在另一实施例中,使用超声能量治疗身体组织的方法包括识别待治疗的目标聚焦区域,并将多个声学消融能量的脉冲递送到围绕靶标的焦点中心对称地分布在焦平面附近的位置 焦点区。

    MAGNETIC RESONANCE THERMOMETRY USING PRF SPECTROSCOPY
    10.
    发明申请
    MAGNETIC RESONANCE THERMOMETRY USING PRF SPECTROSCOPY 审中-公开
    使用PRF光谱的磁共振热分析

    公开(公告)号:US20120071746A1

    公开(公告)日:2012-03-22

    申请号:US13238743

    申请日:2011-09-21

    IPC分类号: A61B5/055

    CPC分类号: G01R33/4804 G01R33/4814

    摘要: During the thermal treatment of an anatomical zone of interest, tissue temperature within the zone may be determined with a computational model whose parameters are adjusted using spectroscopy-based temperature measurements at interfaces of fat and non-fat tissues.

    摘要翻译: 在感兴趣的解剖区域的热处理期间,区域内的组织温度可以用计算模型确定,其计算模型的参数使用基于脂肪和非脂肪组织的界面处的基于光谱的温度测量进行调整。