Left auricle occluder and left auricle occluding system

Abstract

The invention provides a left auricle occluder and a left auricle occluding system. The occluder can better realize repeated positioning, recovering and releasing of the left auricle occluder, and theproblem that in the surgery process, occluding brackets are tangled can be solved, so that the success rate of surgeries is increased. The left auricle occluder comprises the occluding brackets, a near end fixing piece and a far end fixing piece, wherein each occluding bracket comprises an occluding structure and a traction structure; a transporting machine comprises a pushing hollow pipe and a control rod; and under the driving of the control rod, the far end fixing piece moves facing the direction of the near end fixing piece until the first far end of the occluding structure is in a gathering state, the continuous moving of the far end fixing piece can be stopped, and the problem that the occluding brackets are overturned inwards and are tangled caused by manual misoperation is solved.

Description

technical field [0001] The invention relates to the technical field of implantable medical devices, in particular to a left atrial appendage occluder and a left atrial appendage occluder system comprising the left atrial appendage occluder. Background technique [0002] Atrial fibrillation (abbreviated as "AF") is the most common clinical sustained arrhythmia, which has the risk of inducing ischemic stroke, so the prevention of atrial fibrillation is of great significance. Recent studies have shown that closure of the left atrial appendage can effectively prevent the risk of ischemic stroke caused by atrial fibrillation. [0003] The occluders used for left atrial appendage occlusion in the prior art can basically be divided into two categories: one is the integrated occluder represented by Watchman, which is characterized in that it is in a cage shape and the skeleton part is integrally formed. It is easy to process and embedded in the left atrial appendage as a whole afte...

AI Technical Summary

Problems solved by technology

[0004] However, both of the above two occluders cannot be penetrated by a guide wire, which causes them to have two common disadvantages: one is that the guide wire must be withdrawn from the sheath when implanting, and then rely on the positioning of the sheath , the occluder is implanted, which brings great challenges to the design of the sheath, limits other performances of the sheath, increases the cost of the sheath, and when the stent is passed and released, it is easy to remove the sheath The top of the tube is straight, causing the direction of the occluder to be incorrect. Second, the above two occluders are difficult to recover after the connection device is loosened.

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