Ablation catheter and ablation system
An ablation catheter and tube body technology, which is applied in the field of medical devices, can solve problems such as unfavorable health of doctors and patients, influence on the promotion of ablation surgery, and different shapes of pulmonary veins, so as to facilitate real-time judgment, improve occlusion effect, and improve adaptability Effect
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Embodiment 1
[0061] This embodiment provides an ablation catheter 100 . refer to figure 1 , figure 1 It is a schematic structural diagram of the ablation catheter in Embodiment 1 of the present invention. The ablation catheter 100 includes a rod-shaped control member 110 , an outer catheter and a balloon 130 . The outer catheter includes a first tube body 121 and a second tube body 122 . The first tube body 121 is fixedly connected to the distal end of the rod-shaped control member 110 . The second pipe body 122 is sheathed outside the rod-shaped control member 110 , and the rod-shaped control member 110 and the first pipe body 121 can move along the second pipe body 122 relative to the second pipe body 122 . The axis moves forward and backward. The balloon 130 is disposed outside the rod-shaped control member 110 , and its proximal end is fixedly connected to the second tube body 122 , and its distal end is fixedly connected to the first tube body 121 .
[0062] Through the above str...
Embodiment 2
[0066] refer to figure 2 , figure 2 It is a schematic structural diagram of the ablation catheter in Embodiment 2 of the present invention. Embodiment 2 is similar to Embodiment 1, and the similarities will not be repeated. The difference is that the ablation catheter 100 also includes a shape memory element 170 . The shape memory element 170 is used to adjust the size and shape of the balloon 130 . Specifically, the distal end of the shape memory element 170 is fixedly connected to the first tube body 121 , and the proximal end of the shape memory element 170 is fixedly connected to the second tube body 122 . The shape memory element 170 has a first state and a second state. In the first state, the distance between the proximal end and the distal end of the shape memory element 170 is a predetermined distance, and the shape memory element 170 has a first shape; in the second state, the shape memory element 170 The distance between the proximal end and the distal end is l...
Embodiment 3
[0076] refer to image 3 , image 3 It is a partially enlarged schematic diagram of the ablation catheter in Embodiment 3 of the present invention, Figure 4 yes image 3 The cross-sectional view of the ablation catheter in A-A direction, Figure 5 yes image 3 The cross-sectional view of the ablation catheter in the B-B direction, the third embodiment is similar to the first embodiment, and the similarities will not be repeated. The difference is that the rod-shaped control member 110 includes a main body section 112 and a balloon section 113 . The main body section 112 and the balloon section 113 are fixedly connected. The balloon segment 113 includes a first inner tube 114 and at least one pull cord 111a (refer to Figure 4), the main body section 112 includes a second inner tube; when the traction rope 111a is straightened, the first inner tube 114 is set in the balloon 130, and the second inner tube is set in the second tube Body 122. The at least one traction rope...
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