A balloon left atrial appendage occlusion device

Abstract

The invention provides a balloon left atrial appendage occlusion device, comprising: a delivery device and an occluder. The delivery device first transports the occluder to the inside of the left atrial appendage, and then injects a solution into the occluder through a pipeline. The occluder includes: a support frame, a one-way valve, a multi-segment positioning film, an infusion tube and a barb; the multi-segment positioning film is connected to the support frame, and the multi-segment positioning film includes a head positioning film, a middle positioning film and an end positioning film, and the support frame includes The front end of the support frame and the rear end of the support frame, the one-way valve is arranged inside the rear end of the support frame, and the infusion tube is connected with the rear end of the support frame. The solution enters into the multi-segment positioning films, and is sequentially filled with the multi-segment positioning films to form multiple balloon devices. The balloon device on the occluder is close to the inner wall of the left atrial appendage, which can be applied to different anatomical shapes of the left atrial appendage, effectively preventing the occluder from falling off during or after the operation, preventing thrombus from being missed, and reducing the size of the occluder to the greatest extent. complexity and production costs.

Description

technical field [0001] The invention belongs to the field of cardiac medical instruments, and in particular relates to a balloon left atrial appendage occlusion device. Background technique [0002] Atrial fibrillation is the most common clinical persistent arrhythmia. In recent years, the incidence of atrial fibrillation has been increasing year by year, especially among those aged 65 to 85. One of the main hazards of atrial fibrillation is the induction of left atrial thrombosis. , Thrombosis, stroke, peripheral vascular embolism and other complications increase the morbidity and mortality. At present, more than 90% of thrombi in patients with non-valvular atrial fibrillation come from the left atrial appendage, so closing or occluding the left atrial appendage can significantly reduce thrombus formation and reduce the risk of stroke. Traditional treatment options include oral anticoagulant drugs, radiofrequency ablation of atrial fibrillation and ligation of the left atr...

AI Technical Summary

Problems solved by technology

The manufacturing process of the left atrial appendage occluder of this patent is relatively complicated, and the occluder can only be fixed by fixing the thorns. The occluder is not fixed firmly, and the ideal occlusion effect cannot be achieved, and the structure is relatively simple, which cannot adapt to different anatomies. left atrial appendage

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