Novel left aurcle occluder and manufacturing method thereof

Abstract

The invention relates to an occluder for occluding a left aurcle. The novel left aurcle occluder comprises a left aurcle packing column of the occluder, upper barbs of the left aurcle packing column of the occluder, a fixed steering connecting device, a left aurcle cover plate of the occluder, a blood flow barrier membrane, and the like. The novel left aurcle occluder is implanted into the human body by utilizing a minimally invasive therapy method and used for preventing the forming of a thrombus in the left aurcle of a patient with atrial fibrillation by occluding the left aurcle, so that the risk that long-term disability or death due to thromboembolism happens to the patient with atrial fibrillation is lowered. Meanwhile, long-term dependence of the patient with atrial fibrillation on anticoagulant drugs can be eliminated by occluding the left aurcle to provide a new treatment choice for the patient. The occluder is woven by nickel-titanium alloy wires, has a preset extensional appearance, and is used for connecting the left aurcle packing column of the occluder with the left aurcle cover plate of the occluder by virtue of the fixed steering connecting device; the upper barbs of the left aurcle packing column of the occluder are woven on the left aurcle packing column, and the blood flow barrier membrane is sewn in the left aurcle cover plate of the occluder. The novel left aurcle occluder can be used for occluding and blocking the blood flow from entering the left aurcle, the whole left aurcle occluder is smooth and flat in surface and beneficial to epithelization after being implanted.

Description

technical field [0001] New medical devices. Background technique [0002] Atrial fibrillation (AF), the most common sustained cardiac arrhythmia, is characterized by irregular heart beats and can lead to blood clots, stroke, heart failure, and other complications with potentially serious consequences. Non-valvular atrial fibrillation is a high-incidence type of atrial fibrillation, and in non-valvular atrial fibrillation, more than 90% of thrombus formation is related to the left atrial appendage, and the incidence rate of atrial fibrillation in the general population is 0.5% to 1.5% . [0003] There are 33.5 million patients with atrial fibrillation worldwide, and there are about 8 million patients with atrial fibrillation in my country. Patients with atrial fibrillation are five times more likely to have a stroke than the general population. Stroke is the leading cause of death and the leading cause of disease burden (years of life lost) in China. Strokes caused by atr...

AI Technical Summary

Problems solved by technology

[0005] Anticoagulant drug therapy is the basic therapy for preventing stroke in real estate patients, but some patients may have problems such as intolerance, bleeding events and compliance due to taking anticoagulant drugs, and need to return to the hospital frequently for examination and dose adjustment

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