| 摘要 |
The invention relates to intravascular catheters and methods, useful for intravascular surgery. In particular, the invention relates to support catheters with a balloon, which serve in positioning or advancing the guide wire through vasular damages, in cases when the guide wire needs the maximum possible support by the catheter. This is achieved by the manufacturing of an intravascular support catheter (1) with a movable balloon (22), which may move along the catheter body (2) to its peripheral end. The motion of the balloon (23) is achieved by means of two movable outer rings (13) and (18), an inner wire circuit (23), (24) and a remote-control system (13), (17), which is arranged at the proximal part of the intravascular support catheter with a movable ballon (1), allowing it to move in the vessel even when the balloon is infaled and in practice anchored therein. |
