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Bioabsorbable left atrial appendage closure with endothelialization promoting surface

  • US 10,667,896 B2
  • Filed: 11/11/2016
  • Issued: 06/02/2020
  • Est. Priority Date: 11/13/2015
  • Status: Active Grant
First Claim
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1. A left atrial appendage closure device comprising:

  • a plurality of bioabsorbable struts having a proximal end and a distal end which are joined at their proximal portions to form an umbrella-like support structure which is concave when viewed from a distal end of the plurality of bioabsorbable struts,wherein the umbrella-like support structure has a first compact delivery configuration and a second expanded deployed configuration in which the umbrella-like support structure has a proximal circumferential dimension sized and adapted to span and engage an ostium of a left atrial appendage and a longitudinal extent sized and adapted to be contained within the left atrial appendage;

    a bioabsorbable porous cap coextensive with the joined proximal portions of the bioabsorbable struts and which extends distally therefrom along at least a portion of the umbrella-like support structure sized and adapted to be contained within the left atrial appendage,wherein the pores of the bioabsorbable porous cap are sized and adapted to retain thrombi within the left atrial appendage when the left atrial appendage closure device is deployed within the left atrial appendage, and the bioabsorbable porous cap includes a tissue growth promoting component,wherein the plurality of bioabsorbable struts and the bioabsorbable porous cap are integrally formed from a single polymer.

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