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Adsorption-type ablation catheter and ablation device

An ablation catheter and adsorption-type technology, applied in the field of ablation, can solve the problems that the electrodes cannot be effectively attached, and the degree of adhesion cannot be judged by the lesion tissue.

Active Publication Date: 2017-12-08
SICHUAN JINJIANG ELECTRONICS SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art that the electrodes in the ablation catheter cannot effectively stick to the lesion tissue and cannot judge the degree of sticking, and provide an electrode arm that can effectively and reliably stick to the focus tissue and accurately control the electrode arm. Part of the adhering force between the lesion tissue and the adsorption ablation catheter can accurately determine the degree of adhering. In addition, the present invention also provides an ablation device comprising the ablation catheter

Method used

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  • Adsorption-type ablation catheter and ablation device

Examples

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Effect test

Embodiment 1

[0040] A suction ablation catheter such as figure 1 As shown, it includes a tube body 1 and an electrode part connected to the distal end of the tube body 1. The connection between the tube body 1 and the electrode part is provided with an adsorption port 2. The adsorption port 2 is connected to the external negative pressure through the air channel 1.2. The source is connected, and the negative pressure source can be an air extraction device; the electrode part includes a plurality of electrode arms 3 uniformly distributed along the radial direction of the tube body 1, and the electrode arms 3 are curved, specifically S-shaped or spiral, This helps to increase the covering area between the electrode part and the lesion tissue, so that the degree of affixation between the electrode part and the lesion tissue is higher; The distal ends are connected, and the distal ends of the plurality of electrode arms 3 are all free ends.

[0041] In this embodiment, the projection of the a...

Embodiment 2

[0049] This embodiment provides an ablation device, which includes a radio frequency source and an adsorption-type ablation catheter connected to the radio-frequency source. The structure of the adsorption-type ablation catheter is the same as that of the ablation catheter provided in Embodiment 1.

[0050] The electrodes of the ablation device provided in this embodiment can effectively and reliably abut on the lesion tissue, and can accurately judge whether the adhering degree is good or bad, and are easy to use. In addition, the ablation device can also perform superficial ablation.

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Abstract

The invention discloses an adsorption-type ablation catheter and an ablation device, wherein he adsorption-type ablation catheter comprises a catheter body and an electrode part which is connected to the far end of the catheter body; the part, connected to the electrode part, of the catheter body is provided with an adsorption port; and the ablation device comprises a radio-frequency source and the adsorption-type ablation catheter of the structure. According to the adsorption-type ablation catheter and the ablation device provided by the invention, electrode arms can effectively and reliably cling to focus tissues, and clinging force between the electrode part and the focus tissues can be accurately controlled and a clinging degree can be accurately judged; and in addition, superficial ablation can be implemented.

Description

[0001] technical field [0002] The invention relates to the field of ablation, in particular to an adsorption ablation catheter and an ablation device. Background technique [0003] In catheter interventional therapy, the electrode of the radiofrequency ablation catheter is attached to the diseased tissue, and the electrode releases radiofrequency energy to form a loop with the back plate, and the Joule heat generated by the ion conduction current in the biological tissue is mediated by the biological tissue in the high-frequency electromagnetic field. The heat generated by the loss of electricity makes the temperature of the diseased tissue rise, because the heat dissipation of the diseased tissue is poor and sensitive to high heat, so as to achieve the purpose of treatment. Before ablation, it is necessary to determine the degree of contact between the electrode and the lesion tissue. It has been clinically proven that only when the contact pressure between the electrod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B18/12A61B18/14
CPCA61B18/12A61B18/14A61B2018/00351A61B2018/00494A61B2018/00791A61B2018/1467A61B2562/02
Inventor 李楚武邹波朱晓林
Owner SICHUAN JINJIANG ELECTRONICS SCI & TECH CO LTD
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