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    • 74. 发明申请
    • ARRAY ULTRASOUND ENDOSCOPIC PROBE, A MANUFACTURE METHOD THEREOF AND A FIXING AND ROTATING DEVICE
    • 阵列超声内窥镜探针,其制造方法及固定和旋转装置
    • US20120302888A1
    • 2012-11-29
    • US13479017
    • 2012-05-23
    • Jiyan DaiKwok Fung CheungDan ZhouYat Ching ChiuKwok Ho LamYan ChenHelen L. W. Chan
    • Jiyan DaiKwok Fung CheungDan ZhouYat Ching ChiuKwok Ho LamYan ChenHelen L. W. Chan
    • A61B8/12H01L41/22
    • A61B1/0011A61B8/12A61B8/44A61B8/4444Y10T29/42
    • This invention relates to a radial array ultrasound endoscopic probe and its manufacture method and a fixing and rotating device. The probe comprises: a metal cylinder located at the center; a plurality of piezoelectric elements which are cut from piezoelectric ceramic or single crystal rings and arranged around the metal cylinder, said piezoelectric elements and said metal cylinder being provided with a backing material layer for absorbing sound therebetween, said piezoelectric elements being covered with a matching material layer on the outer side thereof, and said piezoelectric elements are filled with decoupling material therebetween; a plurality of coaxial cables correspondingly connected with the plurality of piezoelectric elements; and a circular lattice in a gear shape which sleeves over said metal cylinder and functions to arrange and separate the coaxial cables. In the invention, the plurality of piezoelectric elements are directly cut out from the piezoelectric ceramic or single crystal ring, thus non-concentricity of arrays, misalignment of arrays at interface, the probe being liable to damage, disengagement and break-off, etc., that may arise from forcedly curling multiple lays of materials of a specific thickness, are avoided.
    • 本发明涉及径向阵列超声内窥镜探针及其制造方法和固定旋转装置。 探头包括:位于中心的金属圆筒; 多个压电元件,其从压电陶瓷或单晶环切割并布置在金属圆筒周围,所述压电元件和所述金属圆筒设置有用于吸收声音的背衬材料层,所述压电元件被匹配材料覆盖 并且所述压电元件在其之间填充有去耦材料; 多个同轴电缆,与多个压电元件相对应地连接; 以及齿轮形状的圆形格子,其套在所述金属圆筒上并且用于布置和分离同轴电缆。 在本发明中,多个压电元件从压电陶瓷或单晶环直接切出,因此阵列的非同心度,界面处的阵列不对准,探头易于损坏,脱离和断开等。 可能会由于强制卷曲特定厚度的材料而产生。