Left auricle plugging device and production method thereof

Abstract

The invention provides a left auricle plugging device and a production method thereof. The left auricle plugging device comprises a nickel-titanium alloy net support, wherein the nickel-titanium alloy net support is tubular, a left disc surface and a right disc surface are arranged on two ends of the nickel-titanium alloy net support, the left disc surface is connected to the right disc surface through a moving part, and flow resisting films are respectively arranged in the left disc surface and the right disc surface in a horizontal direction. The production method of the left auricle plugging device comprises the following steps of knitting to be slender net shaped, and then carrying out initial thermal treatment, shaping and final thermal treatment so as to produce one left auricle plugging device. The left auricle plugging device has the advantages of simple structure and convenience for use, an operation process is simplified, the operation time is shortened, and meanwhile, when the left auricle plugging operation is carried out by utilizing the left auricle plugging device, X-ray is not needed, so that the harm to doctors and patients is greatly reduced. The left auricle plugging device produced by the production method of the invention has good performance and reliable use.

Description

technical field [0001] The invention relates to a medical device for heart surgery, in particular to a left atrial appendage occluder and a manufacturing method thereof. Background technique [0002] Atrial fibrillation (AF) is one of the most common clinical arrhythmias, with an incidence of about 0.89% in the population, and the incidence increases with age, reaching 10% in people over 75 years old. During atrial fibrillation, the frequency of atrial excitement reaches 300-600 beats / min, and the heartbeat frequency is often fast and irregular, sometimes up to 100-160 beats / min. shrinkage function. The increase in the prevalence of atrial fibrillation is also closely related to diseases such as coronary heart disease, hypertension and heart failure. The general treatment of atrial fibrillation is mainly based on drug therapy, which can restore and maintain sinus rhythm, control ventricular rate and prevent thromboembolic complications. As medical standards have improved,...

AI Technical Summary

Problems solved by technology

This patent is used in left atrial appendage closure surgery, but this patent only has a hexagonal disk surface, which may fall off when the left atrial appendage is blocked, and the hexagon may also cause damage to the inner wall of the left atrial appendage, and this patent is in The structure is also relatively simple, and it cannot fit the inner wall of the left atrial appendage according to the specific situation of the patient, so it is still not very ideal.

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