| 摘要 |
<p>A catheter of the kind which carries an electrical ultrasonic transducer arrangement at its distal end which transducer arrangement is energised via electrical leads extending the length of the catheter is characterised in that either the leads (3, 4) comprise microcoaxial cables embedded in the wall (1) of the catheter or there are leads carried in a lumen of the catheter which lumen has its walls coated with a metallic electrically screening coating.</p> |
