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Device for left atrial appendage occlusion

A technology for embolization and patient application in the field of devices that prevent embolism materials from passing through the patient's left atrial appendage, and can solve problems such as patient discomfort

Inactive Publication Date: 2008-06-18
EV3 ENDOVASCULAR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, many patients are not suitable for this type of surgery due to dangerous conditions or previous heart surgery
Moreover, even the known risks of chest-needle surgery outweigh the possible benefits

Method used

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  • Device for left atrial appendage occlusion
  • Device for left atrial appendage occlusion
  • Device for left atrial appendage occlusion

Examples

Experimental program
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Effect test

Embodiment Construction

[0055] Figures 1-3 show an occlusive device 10 having features of the invention wherein the occluding body 11 is secured to a retaining body 12 arranged to hold the occluding body in a desired position within an internal channel or cavity. The obturating body 11 is generally in the shape of a disc with an outer edge 13 surrounding the periphery of a frame structure 14 supporting the barrier layer 15 . The outer edge 13 may be circular or polygonal, or any other shape suitable to conform to the inner surface of a body cavity. A hub 16 may be positioned near the center of the obturating body 11 which, among other functions, serves to attach the retaining body 12 to the obturating body. The outer edge 13 is generally made of a flexible polymeric material 17 which provides flexibility to the outer edge and is adapted to seal the outer edge against the inner surface of the body cavity or passage. The barrier layer 15 may be a thin web or film of material that acts to block the pas...

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PUM

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Abstract

A device and method for obliterating or occluding a body cavity or passageway, in particular, the left atrial appendage of a patient's heart. The procedure can be carried out intraoperatively, but is preferably carried out percutaneously by use of a delivery catheter to position an occluding device adjacent a patient's left atrial appendage. The occluding device may prevent the passage of embolic or other material to or from the left atrial appendage by volumetrically filling the appendage, closing the opening of the appendage with an occluding member, or pulling the tissue around the opening of the appendage together and fixing it in a closed state.

Description

technical field [0001] The present invention relates to devices for preventing passage of embolic material through the left atrial appendage of a patient. Background technique [0002] For adults, embolic stroke is the nation's third leading killer and the leading cause of disability. There are more than 700,000 strokes per year in the United States alone. Of these, approximately 100,000 were hemoragic and 600,000 were ischemic (due to vascular stenosis or embolism). The most common cause of embolic stroke from the heart is the formation of a blood clot due to atrial fibrillation. Atrial fibrillation is responsible for approximately 80,000 strokes each year. Atrial fibrillation is a heart rhythm disorder that causes a fast and chaotic heartbeat, which produces low cardiac output and irregular and disturbed blood flow in the vascular system. Atrial fibrillation affects more than five million people worldwide, with approximately 400,000 new cases each year. Depending on t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/12A61B17/00A61B17/08A61B17/11A61B17/122
CPCA61B2017/00575A61B2017/00597A61B17/12122A61B2017/00592A61B2017/00243A61B2017/00606A61B2017/00579A61B17/122A61B2017/00632A61B17/12022A61B17/12186A61B2017/081A61B17/0057A61B17/12195A61B17/12172A61B2017/1205A61B17/12136A61B2017/00615
Inventor E·范德·伯格M·D·莱什D·德奇科A·G·C·弗雷泽A·K·海尔卡安M·S·克里伊德勒C·C·鲁谢
Owner EV3 ENDOVASCULAR
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