| 摘要 |
There is provided a radiofrequency thermal balloon catheter system capable of precisely predicting the surface temperature of a balloon which directly heats a target tissue without allowing a temperature sensor to directly contact with a balloon membrane. In the radiofrequency thermal balloon catheter system, a vibrational wave is applied to an inside of the balloon through a solution transport path by means of a vibration generator. An in-balloon temperature sensor is insulated from the electrode for delivery of radiofrequency current to be fixed in the vicinity of a distal end of an inner tube and then the temperature of the swirls flowing along the inner surface of the balloon is detected. In the present system, the surface temperature of the balloon can be predicted by measuring the temperature of the swirls approximate to the surface temperature of the balloon by means of the in-balloon temperature sensor while applying a radiofrequency current. |
