Radiofrequency ablation catheter of spiral structure and device with radiofrequency ablation catheter

A technology of radio frequency ablation and helical structure, applied in the fields of radio frequency ablation equipment and radio frequency ablation catheters, can solve the problems of difficulty, complicated steps, and many auxiliary equipment, etc., and achieve the effect of convenient movement and simplified operation.

Inactive Publication Date: 2015-05-13
SHANGHAI GOLDEN LEAF MED TEC
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Therefore, the existing radiofrequency ablation catheter can only enter the target area with the help of a gui

Method used

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  • Radiofrequency ablation catheter of spiral structure and device with radiofrequency ablation catheter
  • Radiofrequency ablation catheter of spiral structure and device with radiofrequency ablation catheter
  • Radiofrequency ablation catheter of spiral structure and device with radiofrequency ablation catheter

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Embodiment Construction

[0037] The technical content of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0038] combine Figure 1a to Figure 1c It can be seen that the radiofrequency ablation catheter with a helical structure provided by the present invention includes a long catheter body, and a helical electrode holder is arranged at the front end of the catheter body. The initial diameter of the helical shape of the electrode holder is ΦD, and the initial length is A -1 (see Figure 1a and Figure 1b ), preferably, ΦD should be greater than the diameter of the target lumen, and a control handle 8 is provided at the rear end of the catheter body (see Figure 1c ). In actual production, the electrode support can be made integrally with the catheter body, and the electrode support is the helical part at the front end of the catheter body; the electrode support can also be manufactured independently, and then connected w...

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Abstract

The invention provides a radiofrequency ablation catheter of a spiral structure and a device with the radiofrequency ablation catheter. The radiofrequency ablation catheter has a linear catheter body, a spiral electrode support is arranged at the front end of the catheter body, multiple electrodes are arranged on the electrode support, and a control handle is arranged at the rear end of the catheter body. A slidable supporting wall-attached adjusting wire is arranged in a tubular cavity of the electrode support or a tubular cavity of the catheter body, and comprises a flexible section away from the control handle and a rigid section close to the control handle. According to the radiofrequency ablation catheter, the structure of the supporting wall-attached adjusting wire is improved, so that the difficulty for the radiofrequency ablation catheter to enter a guiding pipe/sheath pipe is lowered remarkably.

Description

technical field [0001] The invention relates to a helical radio frequency ablation catheter and a radio frequency ablation device including the radio frequency ablation catheter, belonging to the technical field of interventional medical devices. Background technique [0002] In the radiofrequency ablation system, the radiofrequency ablation catheter is a key device used to intervene in human blood vessels and release radiofrequency energy. Wherein, the radiofrequency electrode is installed on the bracket at the front end of the radiofrequency ablation catheter, and the bracket is used for carrying the radiofrequency electrode, and expands and adheres to the wall before the radiofrequency starts, and shrinks and retreats after the radiofrequency ends. Since the radiofrequency ablation operation is directly intervening in human blood vessels, the expansion and contraction size of the stent should be adapted to the diameter of human blood vessels. [0003] The diameter of blo...

Claims

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Application Information

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IPC IPC(8): A61B18/12
Inventor 董永华沈美君吉亮姜君
Owner SHANGHAI GOLDEN LEAF MED TEC
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