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    • 2. 发明授权
    • High intensity focused ultrasound transducer with acoustic lens
    • 高强度聚焦超声波换能器与声透镜
    • US08102734B2
    • 2012-01-24
    • US11703784
    • 2007-02-08
    • John W. SliwaPeter GoetzZhenyi MaJennifer TengStephen MorseFrank CallaghanTimothy E. Ciciarelli
    • John W. SliwaPeter GoetzZhenyi MaJennifer TengStephen MorseFrank CallaghanTimothy E. Ciciarelli
    • A61B8/00
    • A61N7/02A61B8/4272A61B17/2251
    • A high intensity focused ultrasound transducer includes an ultrasonic emitter having a surface that emits ultrasonic energy along a beam path, at least one low attenuation polymeric ultrasonic lens acoustically coupled to the surface in the beam path of the ultrasonic energy, such that the lens can direct the ultrasonic energy in at least one direction, and at least one stress mitigation feature, such as a kerf, a heat sink, or an acoustic matching layer, to mitigate thermal expansion mismatch stresses within the transducer. For manufacturing simplicity, the first surface is typically either flat or monotonically curvilinear. The lens may take a variety of shapes, including Fresnel features, and may focus, collimate, or defocus the ultrasonic energy. Any orientation and positioning of the at least one ultrasonic lens relative to the first ultrasonic emitter is contemplated. Manufacture is further simplified by molding, casting, or thermoforming the lens.
    • 高强度聚焦超声换能器包括具有沿着光束路径发射超声波能量的表面的超声波发射器,至少一个低衰减聚合物超声波透镜,声学耦合到超声能量的光束路径中的表面,使得透镜可以直接 在至少一个方向上的超声波能量,以及至少一个应力消除特征,例如切口,散热器或声匹配层,以减轻换能器内的热膨胀失配应力。 为了制造简单,第一表面通常是平坦的或单调曲线的。 透镜可以采取各种形状,包括菲涅尔特征,并且可以聚焦,准直或散焦超声能量。 考虑到相对于第一超声波发射器的至少一个超声波透镜的任何取向和定位。 通过模制,铸造或热成型镜片进一步简化制造。
    • 3. 发明申请
    • High intensity focused ultrasound transducer with acoustic lens
    • 高强度聚焦超声波换能器与声透镜
    • US20080194967A1
    • 2008-08-14
    • US11703784
    • 2007-02-08
    • John W. SliwaPeter GoetzZhenyi MaJennifer TengStephen MorseFrank CallaghanTimothy E. Ciciarelli
    • John W. SliwaPeter GoetzZhenyi MaJennifer TengStephen MorseFrank CallaghanTimothy E. Ciciarelli
    • A61B8/00
    • A61N7/02A61B8/4272A61B17/2251
    • A high intensity focused ultrasound transducer includes an ultrasonic emitter having a surface that emits ultrasonic energy along a beam path, at least one low attenuation polymeric ultrasonic lens acoustically coupled to the surface in the beam path of the ultrasonic energy, such that the lens can direct the ultrasonic energy in at least one direction, and at least one stress mitigation feature, such as a kerf, a heat sink, or an acoustic matching layer, to mitigate thermal expansion mismatch stresses within the transducer. For manufacturing simplicity, the first surface is typically either flat or monotonically curvilinear. The lens may take a variety of shapes, including Fresnel features, and may focus, collimate, or defocus the ultrasonic energy. Any orientation and positioning of the at least one ultrasonic lens relative to the first ultrasonic emitter is contemplated. Manufacture is further simplified by molding, casting, or thermoforming the lens.
    • 高强度聚焦超声换能器包括具有沿着光束路径发射超声波能量的表面的超声波发射器,至少一个低衰减聚合物超声波透镜,声学耦合到超声能量的光束路径中的表面,使得透镜可以直接 在至少一个方向上的超声波能量,以及至少一个应力消除特征,例如切口,散热器或声匹配层,以减轻换能器内的热膨胀失配应力。 为了制造简单,第一表面通常是平坦的或单调曲线的。 透镜可以采取各种形状,包括菲涅尔特征,并且可以聚焦,准直或散焦超声能量。 考虑到相对于第一超声波发射器的至少一个超声波透镜的任何取向和定位。 通过模制,铸造或热成型镜片进一步简化制造。