Multipolar umbrella-shaped radio frequency ablation catheter

[0025] Figure 1-Figure 3 The first embodiment of the multipolar umbrella-shaped radiofrequency ablation catheter provided by the present invention is shown. Such as Figure 1 to Figure 3 As shown, the multipolar umbrella-shaped radiofrequency ablation catheter in this embodiment includes a handle 1 , a catheter body 2 , an umbrella-shaped frame 3 , a central rod 4 , and electrodes 5 .

[0026] Such as figure 1 As shown, the inside of the handle 1 and the catheter main body 2 is set to be hollow, and the inside is provided with electrical connection elements (not shown) for electrically connecting the electrodes to the radio frequency current generating device; the central rod 4 is located between the handle 1 and the catheter The inside of the main body 2; the handle 1 includes a first sliding part 11 and a second sliding part 12 that are nested in each other, the rear end of the catheter body 2 is installed on the first sliding part 11, and the rear end of the central rod 4 i

[0032] Figure 4 The second embodiment of the multipolar umbrella-shaped radiofrequency ablation catheter provided by the present invention is shown. Such as Figure 4 As shown, the difference between the multipolar umbrella-shaped radiofrequency ablation catheter in this embodiment and Embodiment 1 is that the first sliding part 11 is a handle body for the user to hold, and the second sliding part 12 is sleeved on the first Inside of a sliding part 11. In this embodiment, when the user holds the handle body and pushes the second sliding part 12 to move forward or backward, due to the action of the central rod 4 , the umbrella-shaped frame 3 can be retracted or protruded from the catheter body 2 .