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    • 1. 发明申请
    • ABLATION DEVICE WITH SPIRAL ARRAY ULTRASOUND TRANSDUCER
    • 具有螺旋阵列超声波传感器的消除装置
    • WO2005009218A3
    • 2005-06-09
    • PCT/US2004023213
    • 2004-07-20
    • BIOSENSE WEBSTER INCKEIDAR YARON
    • KEIDAR YARON
    • A61B17/00A61B17/22A61B18/18
    • B06B1/0633A61B17/2202A61B2017/00243A61B2017/22028H01L41/047
    • The present invention relates to a device assembly and tissue ablation transducer (400) having a plurality of helical elements that can be operated out of phase to orient the acoustical energy beam forward or backward in the longitudinal direction. The transducers includes a cylindrical inner electrode (402), a cylindrical piezoelectric (403) material disposed over the inner electrode, and a cylindrical outer electrode (404) disposed over the cylindrical piezoelectric material. Spiral grooves (figure 4a) are cut through at least the outer electrode separating the transducer into a plurality of functionally discrete helical transducer segments. The helical transducer segments can be operated independent from one another. An array of intertwined helical transducers arranged linearly along a helical axis are also contemplated.
    • 本发明涉及一种具有多个螺旋元件的装置组件和组织消融换能器(400),所述多个螺旋元件可以相位操作以使声能束在纵向上向前或向后定向。 换能器包括设置在内部电极上的圆柱形内部电极(402),圆柱形压电(403)材料和设置在圆柱形压电材料上的圆柱形外部电极(404)。 至少将外部电极切割成螺旋槽(图4a),所述外部电极将换能器分成多个功能上离散的螺旋换能器段。 螺旋换能器段可彼此独立地操作。 还设想了沿螺旋轴线性排列的缠绕在一起的螺旋形换能器阵列。
    • 3. 发明申请
    • METHOD FOR MAKING A SPIRAL ARRAY ULTRASOUND TRANSDUCER
    • 用于制造螺旋阵列超声波传感器的方法
    • WO2005009219A2
    • 2005-02-03
    • PCT/US2004/023332
    • 2004-07-20
    • BIOSENSE WEBSTER INCKEIDAR, Yaron
    • KEIDAR, Yaron
    • A61B
    • B06B1/0633A61B17/2202A61B2017/22051A61N7/022H01L41/337H04R17/00H04R31/00Y10T29/42Y10T29/49124Y10T29/49156
    • The present invention relates to a method for making an ablation transducer having a plurality of helical elements that can be operated out of phase to orient the acoustical energy beam forward or backward in the longitudinal direction. The transducers includes a cylindrical inner electrode, a cylindrical piezoelectric material disposed over the inner electrode, and a cylindrical outer electrode disposed over the cylindrical piezoelectric material. Spiral grooves are cut through at least the outer electrode separating the transducer into a plurality of functionally discrete helical transducer segments. The helical transducer segments can be operated independent from one another. An array of intertwined helical transducers arranged linearly along a helical axis are also contemplated.
    • 本发明涉及一种用于制造具有多个螺旋元件的消融换能器的方法,所述多个螺旋元件可以相位操作,以使声能束在纵向上向前或向后定向。 换能器包括圆柱形内部电极,设置在内部电极上的圆柱形压电材料和设置在圆柱形压电材料上的圆柱形外部电极。 至少将外部电极切割成螺旋槽,该外部电极将换能器分成多个功能上分散的螺旋换能器段。 螺旋换能器段可彼此独立地操作。 还设想了沿着螺旋轴线性排列的缠绕在一起的螺旋形换能器阵列。
    • 4. 发明申请
    • ABLATION DEVICE WITH SPIRAL ARRAY ULTRASOUND TRANSDUCER
    • 具有螺旋阵列超声波传感器的消除装置
    • WO2005009218A2
    • 2005-02-03
    • PCT/US2004/023213
    • 2004-07-20
    • BIOSENSE WEBSTER INCKEIDAR, Yaron
    • KEIDAR, Yaron
    • A61B
    • B06B1/0633A61B17/2202A61B2017/00243A61B2017/22028H01L41/047
    • The present invention relates to a device assembly and tissue ablation transducer having a plurality of helical elements that can be operated out of phase to orient the acoustical energy beam forward or backward in the longitudinal direction. The transducers includes a cylindrical inner electrode, a cylindrical piezoelectric material disposed over the inner electrode, and a cylindrical outer electrode disposed over the cylindrical piezoelectric material. Spiral grooves are cut through at least the outer electrode separating the transducer into a plurality of functionally discrete helical transducer segments. The helical transducer segments can be operated independent from one another. An array of intertwined helical transducers arranged linearly along a helical axis are also contemplated.
    • 本发明涉及一种装置组件和组织消融换能器,其具有多个能够相位操作的螺旋元件,以使声能束在纵向上向前或向后定向。 换能器包括圆柱形内部电极,设置在内部电极上的圆柱形压电材料和设置在圆柱形压电材料上的圆柱形外部电极。 至少将外部电极切割成螺旋槽,该外部电极将换能器分成多个功能上分散的螺旋换能器段。 螺旋换能器段可彼此独立地操作。 还设想了沿着螺旋轴线性排列的缠绕在一起的螺旋形换能器阵列。