| 摘要 |
1. Closed circuit for a catheter comprising an inflatable balloon (1) located at the distal end of a catheter and tightly connected to a tank (5) located at the other end of the catheter, characterized by the fact that the tank is formed by a second inflatable balloon ; by the fact that this second inflatable balloon is located inside a first chamber (9) provided in a handle of a catheter ; by the fact that the said chamber is connected on the one hand to a pressurized fluid source and on the other hand to the outside of the handle by means of a channel (25) provided with closure means (24) and by the fact that the inside of the second balloon (5) is connected to a second chamber (15) of the handle, the said second chamber being connected to the outside of the handle by the intermediary of two channels (13, 14) provided with closure means (19, 20). |
