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Recessed left aurcle plugging device

An occluder, concave technology, applied in the field of medical devices, to achieve the effect of reducing weight and reducing deformation

Inactive Publication Date: 2016-04-27
SHANGHAI SHAPE MEMORY ALLOY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved by the present invention is to provide a concave left atrial appendage occluder with the function of adjusting the volume of the left atrium and reduce the risk of thrombus detachment, and solve the problem of how to make the left atrium both regulate blood pressure and prevent thrombus problems with access to blood vessels

Method used

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  • Recessed left aurcle plugging device
  • Recessed left aurcle plugging device

Examples

Experimental program
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Effect test

Embodiment 1

[0029] The present invention is a kind of sunken left atrial appendage occluder, such as figure 1 , figure 2 As shown, it includes a left atrial appendage disk 1, the center of the left atrial appendage disk 1 is connected to one end of the spring-type connection structure 3, and the other end of the spring-type connection structure 3 is connected to one end of the occluder fixing device 2.

[0030] The left atrial appendage disk 1 includes a bracket 1.1 covered with a diaphragm 1.2. The stent 1.1 consists of at least one helical branch. The occluder fixing device 2 is composed of at least 3 inner hooks for fixing and supporting the occluder in the left atrial appendage. The spring connection structure 3 includes a spring 3.1, and an inner core 3.2 is arranged inside the spring 3.1.

[0031] Diaphragm 1.2 is a non-degradable polymer material, such as polytetrafluoroethylene, polyethylene terephthalate and the like. Wherein, in this embodiment, the stent 1.1 is a nickel-ti...

Embodiment 2

[0035] In this embodiment, the stent 1.1 is composed of a spiral branch, and the occluder fixing device 2 is composed of 6 inner hooks, as figure 2 shown. Others are the same as in Example 1. The diaphragm 1.2 is a degradable polymer material that can be implanted into the human body, such as polylactic acid and the like.

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Abstract

The invention discloses a recessed left aurcle plugging device. The recessed left aurcle plugging device is characterized by comprising a left aurcle face, wherein the left aurcle face is connected with one end of a spring type connection structure, and the other end of the spring type connection structure is connected with one end of a plugging device fixing device. According to the invention, the pipe diameter size of a plugging device conveying device is reduced, part of the physiological function of the left aurcle is reserved, namely, the volume of the left aurcle is regulated, and further, the risk of falling of thrombus is reduced.

Description

technical field [0001] The invention relates to a recessed left atrial appendage occluder, which is used for treating thrombus dislodgement caused by atrial fibrillation, and belongs to the field of medical devices. Background technique [0002] During atrial fibrillation, the atrium loses its systolic function, and the blood easily stagnates in the atrium to form a thrombus. After the thrombus falls off, it can travel with the blood to all parts of the body, leading to cerebral embolism (stroke), limb arterial embolism (serious cases even require amputation), etc. In patients with atrial fibrillation, more than 90% of thrombi are closely related to the left atrial appendage; as the most common persistent arrhythmia, the incidence of atrial fibrillation in the general population is 0.5% to 1.5%. By blocking the left atrial appendage to prevent the formation of thrombus in the left atrial appendage during atrial fibrillation, thereby reducing the risk of long-term disability ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/12
CPCA61B17/12122A61B17/1214A61B17/12159A61B2017/1205A61B17/12172A61B17/12177
Inventor 周而辰杨永森陈娟钱卫东罗鹏
Owner SHANGHAI SHAPE MEMORY ALLOY
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