Ablation device and system for treating atrial fibrillation

A technology for atrial fibrillation and atrial fibrillation, which is applied in the parts of surgical instruments, medical science, heating surgical instruments, etc., can solve the problems of large side effects, limited efficacy of atrial fibrillation, and poor performance.

Inactive Publication Date: 2019-08-23
BEIHANG UNIV
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional antiarrhythmic drugs have limited efficacy in the treatment of atrial fibrillation, have large side effects and cannot improve the prognosis of patients, which has prompted the development of transcatheter ablation treatment methods, and the most common recurrence of atrial fibrillation ablation is atrial tachycardia, about 0.5%-20% of ablation Patients will experience such tachycardia. Compared with paroxysmal atrial fibrillation, patients with persistent atrial fibrillation undergo extensive pulmonary vein vestibular ablation and linear ablation. An important reason for the poor effect of ablation therapy, about 8% of patients need reoperation to cure atrial tachycardia

Method used

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  • Ablation device and system for treating atrial fibrillation
  • Ablation device and system for treating atrial fibrillation
  • Ablation device and system for treating atrial fibrillation

Examples

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Embodiment Construction

[0014] refer to Figure 1-Figure 4 , is an ablation device and system for treating atrial fibrillation according to an embodiment of the present invention. It includes an ablation device and a model system, the ablation device includes a clamping part, a needle part and a pipeline part; the ablation device cooperates with a human atrial anatomical model to perform an ablation simulation process.

[0015] The ablation system includes the following steps:

[0016] 3D anatomical model of the human atrium

[0017] Using MRI images to reconstruct a human atrial anatomical model. The resolution of the original MRI image is 512×400 pixels, there are 112 pictures in total, and the spatial resolution is 0.625×0.625×0.9 mm ( figure 1 A). The original image was linearly interpolated to have an isotropic spatial resolution of 0.35x0.35x0.35 mm.

[0018] Image processing program for building models of the human heart

[0019] The anatomy of the human heart was segmented and reconstru...

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Abstract

The present application discloses an ablation device and system for treating atrial fibrillation, and a fixed pathway for ablation of persistent AF. The pathway consists of bilateral circumferential pulmonary sinus isolation ('2C') and three linear ablation groups ('3L'). The ablation device and system and the fixed pathway have the advantages of less radio frequency delivery, low X-ray irradiation frequency, and shorter time spent when used in surgery.

Description

technical field [0001] The invention relates to a device for treating and mapping atrial fibrillation, and in particular to an ablation device and system for assisting ablation of myocardial tissue through a modeling method. Background technique [0002] Atrial fibrillation (hereinafter referred to as atrial fibrillation) is the most common clinical arrhythmia, its incidence increases with age, and has a high disability and mortality rate. Data from the Framingham study showed that the incidence of chronic atrial fibrillation among people aged 50 to 59 was 0.5%, and it rose to 8.8% in the group aged 80 to 89. The prevalence rate in our country is 0.61%, and it is 7.5% in the age group over 80 years old. Atrial fibrillation is an independent risk factor for stroke. 1 in 6 stroke patients has atrial fibrillation. Atrial fibrillation is a significant economic burden to public health due to a number of factors including hospital costs, medications, and loss of work capacity. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B34/10A61B18/12
CPCA61B18/12A61B34/10A61B2018/00351A61B2018/00595A61B2034/105
Inventor 樊瑜波欧阳昭连
Owner BEIHANG UNIV
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