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Using method of radiofrequency ablation device

A radiofrequency ablation and impedance value technology, which is applied in the medical field to avoid myocardial perforation and improve safety.

Pending Publication Date: 2021-11-05
罗剑锋
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  • Claims
  • Application Information

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Problems solved by technology

[0015] But for smaller pouches, such as figure 1 As shown, such as the pouch in the left atrium endocardium, there is no report that can use effective methods to find them, so it is unavoidable during radiofrequency ablation

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  • Using method of radiofrequency ablation device
  • Using method of radiofrequency ablation device
  • Using method of radiofrequency ablation device

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Embodiment Construction

[0035] The content of the present invention will be described below in combination with specific embodiments.

[0036] In the method of using the radiofrequency ablation device, when the catheter radiofrequency ablation operation starts, the initial impedance value of the patient's heart is detected and recorded as a, and the variable impedance value (Delta impedance) on the radiofrequency ablation instrument is set to b. The variable impedance value (Delta impedance) b on the radiofrequency ablation instrument is 1-20% of the initial impedance value a of the patient's heart. In this embodiment, the variable impedance value (Delta impedance) b on the radiofrequency ablation instrument is the initial impedance value of the patient's heart 5% of the impedance value a. In other embodiments, the delta impedance value (Delta impedance) b on the radiofrequency ablation apparatus is 1-10% of the initial impedance value a of the patient's heart.

[0037] The delta time on the radiofre...

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Abstract

The invention provides a use method of a radiofrequency ablation device. When a catheter radiofrequency ablation operation is started, the initial impedance value of the heart of a patient is detected and recorded as a, the change impedance value on a radiofrequency ablation instrument is set as b, and the change time zone on the radiofrequency ablation instrument is set as c; in the catheter radiofrequency ablation operation process, the heart impedance change rate delta d of the patient on the radiofrequency ablation instrument is observed in real time; when the catheter for catheter radiofrequency ablation performs continuous radiofrequency ablation on the heart of the patient, when the time is not longer than the change time zone c and the change rate delta d of the impedance value of the heart of the patient in real time is larger than the change impedance value b, the radiofrequency ablation action is stopped immediately; after ablation is stopped, the position of the catheter for catheter radiofrequency ablation in the heart continues to be transferred, and the heart area where the change rate delta d of the real-time patient heart impedance value is larger than the change impedance value b is avoided. According to the method, tiny gas explosion of heart tissues can be avoided, and the operation safety is improved.

Description

technical field [0001] The invention relates to the field of medical technology, in particular to a method for using a radiofrequency ablation device capable of treating atrial fibrillation. Background technique [0002] Atrial fibrillation is one of the most common cardiac arrhythmias, accounting for approximately one-third of arrhythmia hospitalizations. According to the research data of foreign scholars, the prevalence of atrial fibrillation in the population is about 0.4% to 1.0%, and the prevalence of people over 85 years old is as high as 17.4%. According to the survey, there are more than 10 million patients with atrial fibrillation in my country at present, among which the prevalence rate of people over 60 years old is about 2.25%, and the prevalence rate increases significantly with age. [0003] According to multiple authoritative guidelines and expert consensus, catheter radiofrequency ablation is one of the most effective means to cure atrial fibrillation. [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B18/12
CPCA61B18/12A61B2018/00351A61B2018/00577A61B2018/00642A61B2018/00755
Inventor 罗剑锋徐健郭飞苏浩张灿
Owner 罗剑锋
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