| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve a therapeutic effect of ablation by eliminating variation in the temperature of the surface of a balloon of an ablation catheter with a balloon which cauterizes tissue. <P>SOLUTION: The ablation catheter system with a balloon having a catheter shaft 2a, the balloon 3 attached to the catheter shaft 2a, a lumen 4 penetrating the catheter shaft 2a in a major axis direction and communicating with the interior of the balloon, a heating electrode 9 arranged in the balloon, a heating device 13 applying electrical energy to the heating electrode 9, and a vibration imparting device 6 imparting vibration to a heating liquid by periodically repeating the suction and discharge of the heating liquid from the lumen 4. The stirring method is intended for stirring the heating liquid by vibration in the ablation catheter system with a balloon and features a value of 2 to 9 obtained by dividing the volume of the heating liquid discharged to the balloon 3 from the vibration imparting device 6 on one discharge action by the volume of the balloon 3 when the balloon is expanded and multiplying the quotient by 100. <P>COPYRIGHT: (C)2011,JPO&INPIT |
