Asymmetric bidiscoidal left atrial appendage occlusion device

An asymmetric, occluder technology, applied in medical science, surgery, etc., to reduce the formation of thrombus, avoid acute expansion, and reduce the effect of impact

Inactive Publication Date: 2011-02-02
SECOND MILITARY MEDICAL UNIV OF THE PEOPLES LIBERATION ARMY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide an asymmetric double-di

Method used

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  • Asymmetric bidiscoidal left atrial appendage occlusion device
  • Asymmetric bidiscoidal left atrial appendage occlusion device
  • Asymmetric bidiscoidal left atrial appendage occlusion device

Examples

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Embodiment 1

[0014] Such as figure 1 , figure 2 and image 3 As shown, the present invention is divided into three parts, one part is the disc 1 on the surface of the left atrium. Influenced by the left atrium, there is a band made of nickel-titanium alloy wire in the middle of the disc, which can be grasped by the forceps at the head end of the pushing device, and the whole device can be pushed, and three layers of PTFE membrane are sutured inside the disc to prevent blood flow from the left atrium. Left atrial appendage, to achieve the purpose of blocking it. The other part is the left atrial appendage disk surface 3 , which has a trumpet-shaped opening and is fully attached to the inside of the left atrial appendage. The middle of the disks on both sides is a tubular waist connection 2, so that the whole device is stably anchored in the cavity of the left atrial appendage. The entire occlusion device is braided with nickel-titanium alloy wire, which can be put into a 12-14F deliver...

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Abstract

The invention relates to an asymmetric bidiscoidal left atrial appendage occlusion device, which comprises a left atrium face disc (1), a waist connector (2) and a left atrial appendage face disc face (3), wherein the left atrium face disc (1), the waist connector (2) and the left atrial appendage face disc face (3) have netty structures woven by alloy wires; the left atrium face disc (1) has a disc structure, the disc face is arc-shaped, the circle center of disc face is inward concave, the center of the disc is a disc (4), and the inner seam of the disc is sealed by PTFE a film; the left atrial appendage face disc face (3) is trumpet-shaped; and the left atrium face disc (1) and the left atrial appendage face disc face (3) are connected by the waist connector (2). The alloy wires are made of nickel-titanium alloy. The asymmetric bidiscoidal left atrial appendage occlusion device can solve the problem of treating thrombus caused by auricular fibrillation.

Description

technical field [0001] The invention belongs to the field of medical equipment for treating atrial fibrillation, in particular to an asymmetric double-disc left atrial appendage occluder. Background technique [0002] Atrial fibrillation is one of the most common chronic persistent arrhythmias clinically. At the same time, it is also an important cause of ischemic stroke that leads to the loss of labor and death of patients. Studies have confirmed that 15%-20% of all stroke patients are caused by caused by atrial fibrillation. Therefore, atrial fibrillation is considered an independent risk factor for ischemic stroke. Although oral anticoagulant drugs have made great progress in the prevention of stroke, about 20% of patients have contraindications to anticoagulant therapy. Warfarin is currently a very effective drug that is widely used to prevent thrombosis in atrial fibrillation, but its pharmacological effects are affected by many factors such as drugs and food, and it ...

Claims

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Application Information

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IPC IPC(8): A61B17/12A61B17/00
Inventor 宗刚军白元秦永文顾明标朱霓
Owner SECOND MILITARY MEDICAL UNIV OF THE PEOPLES LIBERATION ARMY
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