Importance

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Abstract

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.

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First Claim