公开(公告)号：WO1993016646A1

公开(公告)日：1993-09-02

申请号：PCT/US1993000764

申请日：1993-01-26

Applicant: ANGIOSONICS INC.

Inventor： ANGIOSONICS INC. ,  WENG, Li ,  SCRIBNER, Robert, M.

IPC: A61B17/20

CPC classification number: B06B3/00 ,  A61B17/22012 ,  A61B2017/00336 ,  A61B2017/22018 ,  A61B2017/22092 ,  A61B2017/320072

Abstract: A horn (12) connectable to an energy source (88) to amplify ultrasound displacement is connected to a transmitter (14) formed of material having relatively high mechanical Q for transmitting ultrasonic energy therethrough at a frequency f, the transmitter having a horn-shaped configuration of length that is a multiple of a half-wavelength lambda /2, and preferably this horn-shaped configuration is comprised of multiple horn segments (16a and 16b) each of a length substantially equal to a multiple of lambda /2, where lambda = c/f (c is the speed of sound in the high Q material). The transmitter has a proximal end of cross-sectional diameter D1 connected to the horn and a distal end of cross-sectional diameter D2, where D1 > D2. Ultrasonic energy transmitted through the transmitter drives a tip which is coupled to the transmitter by means of a flexible connector (20).

Abstract translation: 可连接到能量源（88）以放大超声波位移的喇叭（12）连接到由具有相对高的机械Q的材料形成的发射器（14），用于以频率f发射超声能量，发射器具有喇叭形 长度为半波长λ/ 2的倍数的配置，并且优选地，该喇叭形配置由多个喇叭段（16a和16b）组成，每个喇叭段基本上等于λ/ 2的倍数，其中λ = c / f（c是高Q材料中的声速）。 发射器具有连接到喇叭的截面直径D1的近端和横截面直径D2的远端，其中D1> D2。 通过发射器传输的超声能量通过柔性连接器（20）驱动与发射器耦合的尖端。