Vascular radio-frequency ablation electrode catheter provided with claw-shaped catheter branches

A branch catheter and radiofrequency ablation technology, applied in the field of medical devices, can solve the problems of inability to effectively treat complex myocardial tissue, inability to adapt to the diameter of blood vessels of different patients, and limited expansion and contraction size. Avoid the effects of excessive ablation

Pending Publication Date: 2017-05-10
汤敬东 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing vascular radiofrequency ablation catheter has only one ablation electrode and the fixed size is limited. It cannot adapt to the diameter of various blood vessels of different patients, and cannot achieve a good wall-attachment effect. When performing vascular ablation operations on different patients, different specifications and models need to be replaced. Advanced ablation electrodes, the process is cumbersome, cannot effectively treat complex myocardial tissue, and affect the surgical effect

Method used

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  • Vascular radio-frequency ablation electrode catheter provided with claw-shaped catheter branches
  • Vascular radio-frequency ablation electrode catheter provided with claw-shaped catheter branches
  • Vascular radio-frequency ablation electrode catheter provided with claw-shaped catheter branches

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Such as Figure 1-3 In the shown vascular radiofrequency ablation electrode catheter with claw-shaped branch catheters, the front section is the radiofrequency ablation working section 1, the middle section is the tube body section 2, and the rear section is the control handle section 3. The radiofrequency ablation working section 1 protrudes eight radio frequency Branch catheter 4, the eight radio frequency branch catheters 4, the overall shape of the eight radio frequency branch catheters 4 is claw-shaped, and at least one ablation electrode 7 is installed at the head end of each radio frequency branch catheter 4;

[0034] The control handle section 3 adjusts the telescopic length and curvature of each radio frequency branch catheter 4, and the control handle section 3 also adjusts the radio frequency current power of the ablation electrodes 7 on each radio frequency branch catheter 4;

[0035] The extension length of each radio frequency branch catheter 4 protruding ...

Embodiment 2

[0040] Such as Figure 4-6 In the shown vascular radiofrequency ablation electrode catheter with claw-shaped branch catheters, the front section is the radiofrequency ablation working section 1, the middle section is the tube body section 2, and the rear section is the control handle section 3, and the radiofrequency ablation working section 1 protrudes eight pieces in the circumferential direction. The radio frequency branch catheter 4, the eight radio frequency branch catheters 4, the overall shape of the eight radio frequency branch catheters 4 is claw-shaped, and at least one ablation electrode 7 is installed at the head end of each radio frequency branch catheter 4;

[0041] The control handle section 3 respectively performs telescopic length adjustment and curvature adjustment on each radio frequency branch catheter 4, and the control handle section 3 also separately adjusts the radio frequency current power of the ablation electrodes 7 on each radio frequency branch cath...

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Abstract

The invention relates to the technical field of medical apparatuses, and in particular to a vascular radio-frequency ablation electrode catheter provided with claw-shaped catheter branches; a radio-frequency ablation working section is arranged on the front section of the vascular radio-frequency ablation electrode catheter , a catheter body section is arranged on the middle section of the vascular radio-frequency ablation electrode catheter and a control handle section is arranged on the rear section of the vascular radio-frequency ablation electrode catheter; the eight radio-frequency catheter branches extend from a peripheral direction of the radio-frequency ablation working section; the eight radio-frequency catheter branches are integrally represented as claw-shaped structures; and at least one ablation electrode is connected to the head end of each radio-frequency catheter branch. The vascular radio-frequency ablation electrode catheter provided by the invention has the beneficial effects that in practical clinical treatment, the vascular radio-frequency ablation electrode catheter provided with the claw-shaped catheter branches provided by the invention can be applied to various blood vessels differing in diameter and can be used for conducting radio-frequency ablation therapy on cardiac muscle tissues in a complex part, such as for vascular ablation of such diseases as paroxysmal atrial tachycardia, supraventricular tachycardia, atrial flutter, atrial fibrillation, resistant hypertension and the like.

Description

technical field [0001] The invention relates to the field of medical equipment, in particular to a blood vessel radiofrequency ablation electrode catheter with a claw-shaped branch catheter. Background technique [0002] Vascular radiofrequency ablation technology is to enter a catheter with an ablation electrode into a specific part of the heart cavity through a vein or an artery. After a doctor's examination, the specific mechanism that causes tachycardia is determined, and then a controllable radiofrequency current is released on the ablation electrode to generate heat. Depletion of water in the target tissue leads to coagulation necrosis of local myocardial tissue, terminating tachycardia, and achieves the purpose of treating tachyarrhythmia, including the treatment of paroxysmal supraventricular tachycardia and ventricular tachycardia and other diseases. [0003] Arrhythmia is a general term for a large group of diseases, which refers to abnormal changes in the normal r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B18/12A61B18/14
CPCA61B18/12A61B18/1492A61B2018/00059A61B2018/00351A61B2018/00589A61B2018/00702A61B2018/00791
Inventor 汤敬东韩韬吉小军
Owner 汤敬东
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