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Left atrial appendage closure implant

A technology of implants and anchors, applied in medical science, surgery, ligation, etc., can solve the problems of blood stasis, bad left atrial appendage thrombosis, etc.

Active Publication Date: 2015-09-16
BOSTON SCI SCIMED INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In patients with atrial fibrillation, the LAA may not properly contract with the left atrium, causing blood to pool inside it, which can lead to undesirable thrombus formation within the LAA

Method used

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  • Left atrial appendage closure implant
  • Left atrial appendage closure implant
  • Left atrial appendage closure implant

Examples

Experimental program
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Embodiment Construction

[0028] For terms defined below, these definitions shall apply unless a different definition is given in the claims or elsewhere in this specification.

[0029] The terms "upstream" and "downstream" refer to the orientation or location relative to the direction of blood flow through a particular element or location, such as a vessel (ie, aorta), a heart valve (ie, aortic valve), and the like.

[0030] The terms "proximal" and "distal" shall generally refer to the relative orientation, orientation, or direction of elements or actions relative to each other from the perspective of a clinician using the medical device. While the terms are not meant to be limiting, "proximal" may generally be considered closer to the clinician's and patient's body, while "distal" may generally be considered further along the length of the medical device from the clinician .

[0031] The terms "monolithic" and "unitary" shall generally refer to an element made of or composed of a single structure o...

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PUM

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Abstract

A left atrial appendage closure implant may include a support frame including a first bend extending from a proximal collar to a second bend, a first segment extending from the second bend to a third bend, a second segment extending from the third bend to a fourth bend, and a third segment extending from the fourth bend to a distal collar, wherein the support frame is actuatable from a first constrained position to a second flowering position to a third mid-deployment position to a fourth unconstrained position. An implant may include a self-expanding support frame having a circumference and a central longitudinal axis, a membrane disposed over at least a portion of the support frame, and a plurality of anchors arranged into a first row and a second row such that the first row and the second row form a staggered pattern about the circumference of the support frame.

Description

technical field [0001] The present invention relates generally to percutaneous medical devices, and more particularly, to percutaneous medical devices for implantation in the left atrial appendage (LAA) of the heart. Background technique [0002] Atrial fibrillation (AF) is the most common sustained cardiac arrhythmia, affecting more than 5.5 million people worldwide. Atrial fibrillation is an irregular, chaotic beat in the upper chambers of the heart. The electrical impulses discharge very rapidly, causing the atrial muscles to tremble, or fibrillation. An episode of atrial fibrillation may last a few minutes or a few days. The most serious consequence of atrial fibrillation is ischemic stroke. It is estimated that up to 20% of strokes are associated with atrial fibrillation. For most people with atrial fibrillation, regardless of the severity or frequency of their symptoms, treatment is required to reduce the risk of stroke. The left atrial appendage (LAA) is a small ...

Claims

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Application Information

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IPC IPC(8): A61B17/00A61B17/12A61F2/04
CPCA61B17/12172A61B17/0057A61B2017/00526A61B2017/00632A61B2017/00601Y10T29/49826A61B17/12122
Inventor 布莱恩·J·蒂施勒克里斯托弗·J·克拉克丹尼斯·A·派弗希娜·M·周
Owner BOSTON SCI SCIMED INC