| 摘要 |
<p>A remote controlled guide for a catheter, characterized by the fact that its end called the head which is formed of a cylindrical coil spring (2) having separated coils is mounted coaxially at the end of a tube (1) and can be bent at will so as to facilitate its introduction and then its passage through the blood vessels. To do that, the user acts axially on the rear end of a flexible pulling member (5) the other end of which is fastened to the upper portion of the head at a point which is eccentric with the axis of said latter, this flexible pulling member (5) passing through the tube (1). Furthermore, and in order to inject at the level of the head a contrast liquid inside the blood vessel, the rear end of the tube (1) is removably fixed in a tight manner onto a frame member (6) provided with a lateral channel (17) communicating with the tube (1), the liquid being able to escape through the coils of the spring (2). When the guide for the catheter is set place, the frame member (6) is disconnected from the tube (1) to be replaced by an extension (15) having a stud (16). Now, the guide for the catheter is in its working state to support and guide a catheter having an inflatable balloon.</p> |
