A left auricle occluding device

A technology of occluder and sealing disc, which is applied in the field of medical devices, can solve problems such as stress concentration, increased risk of thrombus, and surgical failure, and achieve the effect of eliminating local stress concentration, reducing the risk of puncture, and achieving repeatable release
CN104958087AActive Publication Date: 2015-10-07HANGZHOU NUOMAO MEDTECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HANGZHOU NUOMAO MEDTECH CO LTD
Publication Date
2015-10-07

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Abstract

The invention discloses a left auricle occluding device. The left auricle occluding device comprises a sealing disc and an anchoring device, both of which are connected. The position where the anchoring device is matched with a left auricle is an anchoring net of a boneless structure. The overall anchoring device is of a boneless structure and formed by weaving of hyper-elastic metal wires or memory alloy metal wires. The far end of the anchoring device is in the shape of an opening. The near end of the anchoring device is collected and connected with the sealing disc to form a conical net. The far end of the anchoring device is opened and turned up towards the near end to form the anchoring net surrounding the conical net. The anchoring net is joined with the conical net by means of a circular transition area. The left auricle occluding device has following beneficial effects: force can be uniformly distributed to be anchored in the interior of the left auricle in order to eliminate concentration of local stress and can also be repeatedly released; and an opening part of the left auricle is effectively and reliably blocked.
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Description

technical field

[0001] The invention relates to the technical field of medical instruments, in particular to a left atrial appendage occluder. Background technique

[0002] Atrial fibrillation (abbreviated as atrial fibrillation) is the most common sustained arrhythmia, and with age, the incidence of atrial fibrillation continues to increase, reaching 10% in people over 75 years old.

[0003] During atrial fibrillation, the frequency of atrial excitation reaches 300-600 beats per minute, the heartbeat frequency is often fast and irregular, and the atrium loses effective systolic function. In atrial fibrillation, the contractility of the left atrial appendage decreases, coupled with the morphological characteristics of the left atrial appendage itself and the unevenness of the muscle trabeculae in the left atrial appendage, the blood flow in the left atrial appendage produces vortices and slows down the flow rate, which promotes the formation of thrombus. In patients with no...

Claims

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