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公开(公告)号：US20050261610A1
公开(公告)日：2005-11-24
申请号：US10850959
申请日：2004-05-21
申请人： T. Mast , Peter Barthe , Paul Jaeger , Waseem Faidi , Stephen Leonard , Michael Slayton
发明人： T. Mast , Peter Barthe , Paul Jaeger , Waseem Faidi , Stephen Leonard , Michael Slayton
CPC分类号： G10K11/348 , G01S7/52047
摘要： A system for temporal transmit apodization of an ultrasound transducer array. The system includes a waveform generator and an ultrasound transducer array having a plurality of transducer elements. Each of the transducer elements is driven by a signal generator that generates a periodic waveform. The duty cycle of each signal generator is determined by a predetermined setting of a duty cycle control. The duty cycle of each signal generator is calculated to achieve a desired beam profile of the transducer array, such as acoustic focusing for reducing the level of grating lobes and side lobes. Apodization is achieved by varying the effective amplitude at each array element by varying the duty cycle of the signal provided to each element.
摘要翻译： 一种用于超声换能器阵列的时间发射变迹的系统。 该系统包括具有多个换能器元件的波形发生器和超声换能器阵列。 每个换能器元件由产生周期波形的信号发生器驱动。 每个信号发生器的占空比由占空比控制的预定设置确定。 计算每个信号发生器的占空比以实现换能器阵列的期望的波束分布，例如用于降低光栅瓣和旁瓣的水平的声聚焦。 通过改变提供给每个元件的信号的占空比来改变每个阵列元件的有效幅度来实现变迹。
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公开(公告)号：US20050240123A1
公开(公告)日：2005-10-27
申请号：US10824196
申请日：2004-04-14
申请人： T. Mast , Waseem Faidi , Inder Makin , Michael Slayton , Peter Barthe
发明人： T. Mast , Waseem Faidi , Inder Makin , Michael Slayton , Peter Barthe
CPC分类号： A61N7/022 , A61B2017/00274 , A61B2018/00547
摘要： An embodiment of an ultrasound medical treatment system includes an ultrasound medical-treatment transducer and a controller. The controller powers the transducer to deliver ultrasound to thermally ablate patient tissue in vivo. In a first expression of the embodiment and/or a first method for thermally ablating patient tissue in vivo which optionally can employ the embodiment, the transducer is powered to deliver ultrasound for or beyond an in vivo treatment time which is a function of an experimentally-determined in vitro treatment time for the same ultrasound acoustic power. In a second expression of the embodiment and/or a second method, the transducer is powered to deliver ultrasound at or above an in vivo ultrasound acoustic power which is a function of an experimentally-determined in vitro ultrasound acoustic power for the same treatment time. In a third expression of the embodiment and/or a third method, the transducer is powered to deliver ultrasound at or above an ultrasound acoustic power threshold which is calculated from an equation.
摘要翻译： 超声医疗系统的一个实施例包括超声医疗换能器和控制器。 控制器为传感器供电以输送超声波，以在体内热消融患者组织。 在本实施例的第一个表达方式和/或用于在体内热消融患者组织的第一种方法，其任选地可以采用本实施例，换能器被供电以输送超出体内治疗时间或超过体内治疗时间， 确定体外治疗时间为相同的超声波功率。 在实施例和/或第二方法的第二表达中，换能器被供电以在等于或高于体内超声声功率的情况下传送超声波，该功率在相同的治疗时间内是实验确定的体外超声声功率的函数。 在实施例和/或第三方法的第三表达式中，换能器被供电以将超声波输送到等于或高于根据等式计算的超声声功率阈值。
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13.发明申请公开(公告)号：US20050228286A1
公开(公告)日：2005-10-13
申请号：US10819726
申请日：2004-04-07
申请人： Jeffrey Messerly , Michael Slayton , Richard Nuchols , Inder Makin , Peter Barthe , T. Mast
发明人： Jeffrey Messerly , Michael Slayton , Richard Nuchols , Inder Makin , Peter Barthe , T. Mast
CPC分类号： A61B8/12 , A61B8/4281 , A61B8/445 , A61B8/4461 , A61B2090/378 , A61N7/02
摘要： An ultrasound medical system includes a handpiece and an end effector which is operatively connected to the handpiece and which is insertable into a patient. The end effector includes a shaft, a medical ultrasound transducer assembly, and a shaft head. The shaft has a longitudinal axis, has a distal end, and is rotatable about the longitudinal axis with respect to the handpiece. The transducer assembly is non-rotatably attached to the shaft and is adapted to emit medical ultrasound. The shaft head is attached to the distal end of the shaft and has a piercing tip which is insertable into patient tissue.
摘要翻译： 超声波医疗系统包括手持件和端部执行器，其可操作地连接到手持件并且可插入到患者体内。 末端执行器包括轴，医用超声换能器组件和轴头。 轴具有纵向轴线，具有远端，并且可相对于手持件围绕纵向轴线旋转。 换能器组件不可旋转地附接到轴并且适于发射医用超声波。 轴头连接到轴的远端并且具有可插入患者组织中的穿刺尖端。
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