P1-39 小型超音波モータを用いる機械走査式IVUSシステムの開発(ポスター発表)

概要

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Intravascular ultrasound (IVUS) is a catheter-based technique, which provides real-time high-resolution images of the internal structure of a blood vessel to diagnostic diseases like blood stricture, blood vessel lesion, and so on. However, in mechanical scanning-type IVUS that uses a torque wire to turn a transducer or a reflecting mirror, image distortion due to the non-uniform rotation may be a problem. To avoid the non-uniform rotation the use of an electromagnetic motor on the tip is developed. However, the motor is difficult to miniaturize, because it uses a magnet. An ultrasonic motor that uses a helical coil as a stator can be miniaturized (CS-USM). Therefore, we developed a new IVUS system using CS-USM.
超音波エレクトロニクスの基礎と応用に関するシンポジウム運営委員会の論文
2006-11-15