left atrial appendage occluder
An occluder and disk surface technology, which is 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 effects of simplifying the operation process, shortening the operation time, and convenient operation.
Active Publication Date: 2017-01-25
SHANGHAI SHAPE MEMORY ALLOY
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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
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[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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A left atrial appendage occlusion apparatus comprises an inner disc surface (11) and an outer disc surface (12) knitted by shaped memory silk threads. The center of the inner disc surface (11) is connected to the center of the outer disc surface (12) by means of a connecting portion (13). The connecting portion (13) is a prefabricated rod. The inner disc surface (11) and the outer disc surface (12) are respectively fixed to two ends of the connecting portion (13). A flow blocking membrane (2) is disposed in each of the inner disc surface (11) and the outer disc surface (12). A connector (3) is disposed on the outer disc surface (12). The connecting portion (13) is of a tubular structure with an inner cavity. A through hole is formed in the connector (3). The connecting portion (13) is connected to the connector (3), and the inner cavity of the connecting portion (13) is in communication with the through hole of the connector (3) to form a conveying channel. The left atrial appendage occlusion apparatus is implanted from the outer side of the left atrial appendage, and relates to a minimally invasive surgery. By means of the apparatus, a doctor can directly see the left atrial appendage, the operation process is simplified, the operation safety is improved, and the pains of a patient are relieved. In addition, the conveying channel is disposed, which allows a medicine or a contrast agent to be conveniently injected into a human body in the operation process.
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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IPC IPC(8): A61B17/12
CPCA61B17/12
Inventor 蒲忠杰周而辰陈娟杨永森
Owner SHANGHAI SHAPE MEMORY ALLOY