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Radiofrequency ablation catheter with segment-shaped support structure and equipment thereof

A technology of radiofrequency ablation and stent structure, applied in the fields of radiofrequency ablation equipment and radiofrequency ablation catheters, can solve problems such as poor adaptability of curved blood vessels and inability of electrodes to adhere to the wall, and achieve the effects of good scalability, good coverage, and wide coverage.

Inactive Publication Date: 2015-01-07
SHANGHAI GOLDEN LEAF MED TEC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In addition, the existing radiofrequency ablation catheters generally have poor adaptability to curved blood vessels, and most radiofrequency ablation catheters cannot adhere to the wall at all in curved blood vessels.

Method used

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  • Radiofrequency ablation catheter with segment-shaped support structure and equipment thereof
  • Radiofrequency ablation catheter with segment-shaped support structure and equipment thereof
  • Radiofrequency ablation catheter with segment-shaped support structure and equipment thereof

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Embodiment Construction

[0031] The technical content of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. For ease of description, the end close to the operator (farther from the ablation site) is referred to as the proximal end, and the end far from the operator (closer to the ablation site) is referred to as the distal end.

[0032] like figure 1 As shown, the radiofrequency ablation catheter provided by the present invention includes a petal-shaped stent 1 processed from the same hollow tube, and the shape of the petal-shaped stent 1 resembles a lantern skeleton after being expanded in a blood vessel. The petal-shaped stent 1 includes a plurality of stent wires 2 distributed in a circle around the central axis, and one or two connecting tubes integrated with the stent wires 2 . Specifically, in the petal-shaped stent 1, the length direction of each stent wire 2 extends along the length direction of the hollow tubing, an...

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Abstract

The invention provides a radiofrequency ablation catheter with a segment-shaped support structure. The radiofrequency ablation catheter comprises the segment-shaped support structure which is formed by the same hollow tube through machining; the segment-shaped support comprises a plurality of support wires and one connecting tube or two connecting tubes; the support wires are distributed in a circular shape around the center axis; the connecting tube or the connecting tubes and the support wires are integrated into a whole; the length direction of every support wire extends along the length direction of the hollow tube; two ends of every support wire are gathered together to form a far end and a near end of the segment-shaped support respectively; one or more than one electrode is arranged in the middle section of every support wire; the middle section of the segment-shaped support comprises the retraction state and the extension state. The segment-shaped support which is arranged in the radiofrequency ablation catheter is formed by the same tube through machining, the extensible property is good, the arrangement form of the plurality of electrodes meets the specific requirements during extension wall-sticking, and accordingly the coverage is good for different thicknesses of blood vessels and bent blood vessels.

Description

technical field [0001] The present invention relates to a radio frequency ablation catheter, in particular to a radio frequency ablation catheter with a valve-like stent structure, and also to a radio frequency ablation device including the above radio frequency ablation catheter, which belongs to the technical field of medical devices. Background technique [0002] In the radiofrequency ablation system, the radiofrequency electrode is a key device for contacting or approaching the treated human tissue and releasing radiofrequency energy. Radio frequency electrodes are used to convert radio frequency signals into temperature fields, and treat human tissues through thermal effects. During the operation, whether the radiofrequency electrode adheres to the wall has a decisive effect on the therapeutic effect of radiofrequency ablation. [0003] In the radiofrequency ablation catheter, the radiofrequency electrode is installed on the stent at the front end of the radiofrequency...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B18/14A61B18/12
CPCA61B18/12A61B18/14
Inventor 董永华沈美君吉亮施政民
Owner SHANGHAI GOLDEN LEAF MED TEC
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