Completely degradable left auricle plugging device

An occluder and complete technology, applied in the field of medical devices, can solve problems such as long-term complications, achieve the effects of wide indications, reduce residual shunt, and enhance stability
CN113288311APending Publication Date: 2021-08-24SHANGHAI SHAPE MEMORY ALLOY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI SHAPE MEMORY ALLOY
Publication Date
2021-08-24

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Abstract

The invention relates to a completely degradable left atrial appendage occluder, and belongs to the technical field of medical instruments. The occluder comprises a fixed disc and a covering disc; a fixed disc is arranged at one end, close to the bottom of the left auricle, of the plugging device; a connecting rivet is arranged on one side, close to the left auricle opening, of the covering disc; and the plugging device is made of a completely biodegradable material. The left auricle plugging device provided by the invention becomes a bridge for endothelial cells to climb after being implanted into a body, and after the left auricle plugging device is implanted for a period of time, the surface of the left auricle plugging device is coated by new endothelial tissues, so that the self-plugging of the left auricle is realized. The plugging device is finally degraded by the body, so that the left auricle is completely filled with self tissues, and long-term complications and potential safety hazards caused by metal remaining in the body are avoided.
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Description

technical field

[0001] The invention relates to a completely degradable left atrial appendage occluder, which belongs to the technical field of medical instruments. Background technique

[0002] The left atrial appendage is located on the inner corner of the left atrium, which is a dead end for blood, and the main relevant people with potential risks are patients with atrial fibrillation. After the atrial systolic pressure is lowered in patients with atrial fibrillation, the blood flow in the left atrial appendage will be slower, which will easily lead to blood coagulation into thrombus. If the thrombus falls off, it is likely to reach the intracranial blood vessels through the blood flow and block the tiny cerebral blood vessels, resulting in ischemic stroke. 17% of patients with atrial fibrillation develop blood clots, and about 91% of these blood clots originate from the left atrial appendage. Stroke caused by atrial fibrillation has three characteristics: high disabili...

Claims

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