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Left atrial appendage occlusion device

An occluder and disk surface technology, applied in the field of medical devices, can solve the problems of complicated operation process and inconvenience in determining the position of the occluder, and achieve the effect of simplifying the operation process, shortening the operation time, and convenient operation.

Active Publication Date: 2015-01-14
SHANGHAI SHAPE MEMORY ALLOY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This patent is to implant the occluder through the above-mentioned percutaneous puncture closure. Although it can also complete the closure, because the operation process is complicated and it is not convenient to determine the position of the occluder, it still exists during the actual operation. Inadequacies

Method used

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  • Left atrial appendage occlusion device
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Embodiment Construction

[0031] The structures, proportions, sizes, etc. shown in the accompanying drawings of the description are only used to match the content disclosed in the description, for those who are familiar with the technology to understand and read, and are not used to limit the conditions for the implementation of the present invention, so there is no Technically, any modification of structure, change of proportional relationship or adjustment of size shall still fall within the scope of the technical content disclosed in the present invention without affecting the functions and objectives of the present invention. within the range that can be covered. At the same time, terms such as "upper", "lower", "front", "rear", and "middle" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the present invention. , the change or adjustment of its relative relationship, without substantive changes in the technical content, should also be...

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Abstract

The invention provides a left atrial appendage occlusion device which comprises a left plate surface and an outer plate surface. The inner plate surface and the outer plate surface are braided by shape memory silk threads. The centers of the inner plate surface and the outer plate surface are connected through a connecting part. The connecting part is a prefabricated rod. The inner plate surface and the outer plate surface are respectively fixed at two ends of the connecting part. A flow choking membrane is disposed in each of the inner plate surface and the outer plate surface. A connector is disposed on the outer plate surface. Preferably, the inner cavity of the connecting part is communicated with the through hole of the connector to form a conveying passage. The left atrial appendage occlusion device has the advantages the device is implanted from the outer side of left atrial appendage in an minimally invasive manner, a doctor can see the left atrial appendage directly, surgery process is simplified, surgery safety is increased, and the pains of a patient is greatly relieved; due to the fact that the device is provided with the conveying passage, medicines or development agents can be injected into a human body conveniently during a surgery.

Description

technical field [0001] The invention relates to a medical device, in particular to an occluder for occluding the left atrial appendage. Background technique [0002] Atrial fibrillation (AF) is one of the most common arrhythmias clinically, with an incidence rate of about 0.89% in the population, and the incidence rate increases with age. In addition to inducing and aggravating heart failure, atrial fibrillation can also cause stroke and other thrombotic events. About 5% of patients with atrial fibrillation suffer from stroke every year, and the mortality and disability rate caused by stroke is as high as 50%. Therefore, How to prevent or reduce stroke caused by thrombus in atrial fibrillation is of great significance. In recent years, a number of clinical studies have shown that closure of the left atrial appendage can reduce the risk of stroke in patients with atrial fibrillation. At present, the mainstream left atrial appendage occlusion in the world is percutaneous pun...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/12
CPCA61B17/12A61B17/0057
Inventor 蒲忠杰周而辰陈娟杨永森
Owner SHANGHAI SHAPE MEMORY ALLOY
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