一种机械式扫描血管内超声探头  

A Mechanical Scanning Intravascular Ultrasound(IVUS)Probe

作　　者：卢少伟 李明夏 冯志华[1] 江小宁 LU Shaowei;LI Mingxia;FENG Zhihua;JIANG Xiaoning(Dept. of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei 230026, China;Dept. of Mechanical and Aerospace Engineering, North Carolina State University, The U.S.A.)

机构地区：[1]中国科学技术大学,精密机械与精密仪器系,安徽合肥230026 [2]北卡罗莱纳州立大学机械与航天工程系,美国

出　　处：《压电与声光》2020年第2期218-222,共5页Piezoelectrics & Acoustooptics

基　　金：国家自然科学基金资助项目(81728008)。

摘　　要：在心血管疾病的诊断上,血管内超声起重要作用。然而由于机械式旋转探头普遍存在不均匀旋转现象,从而使成像质量下降。因此,该文将驱动电机置于探头前端,以避免长距离传输。压电马达主体的直径为 1 mm,长为10 mm。此电机具有稳定及低功耗特性,且在低电压驱动下速度较高。该文还展示了探头的扫描成像结果,结果表明这种探头具有一定的可行性。The intravascular ultrasound(IVUS)plays a vital role in the diagnosis of cardiovascular disease.However,due to the non-uniform rotation commonly existing in the mechanical rotational probe,the imaging quality is reduced.Thus in this paper,the driven motor is placed in the front of the probe to avoid long distance transmission.The diameter of the piezoelectric motor is 1 mm,and the length is 10 mm.The motor has the characteristics of stability and low power consumption,and the speed is high under low voltage driving.The scanning imaging results of the probe are also presented in the article,which shows that this probe has certain feasibility.

关 键 词：不均匀旋转 血管内超声(IVUS)探头 压电马达 换能器 

分 类 号：TN384[电子电信—物理电子学]