US 12,144,508 B2
Devices and methods for excluding the left atrial appendage
David A. Melanson, Hudson, NH (US); Andy H. Levine, Newton Highlands, MA (US); James H. Loper, Wales, MA (US); Michael T. Radford, Nashua, NH (US); Carol Devellian, Topsfield, MA (US); Aaron V. Kaplan, Norwich, VT (US); and Ronald B. Lamport, Pelham, NH (US)
Assigned to Conformal Medical, Inc., Merrimack, NH (US)
Filed by Conformal Medical, Inc., Merrimack, NH (US)
Filed on Feb. 23, 2021, as Appl. No. 17/183,160.
Application 17/183,160 is a continuation in part of application No. 16/782,871, filed on Feb. 5, 2020.
Claims priority of provisional application 62/803,289, filed on Feb. 8, 2019.
Prior Publication US 2021/0169500 A1, Jun. 10, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 17/12 (2006.01); A61B 17/00 (2006.01)
CPC A61B 17/12181 (2013.01) [A61B 17/12122 (2013.01); A61B 2017/00632 (2013.01); A61B 2017/1205 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A conformable left atrial appendage occlusion device, comprising:
an expandable tubular foam body having a compressible open cell foam sidewall, a proximal, occlusive end for facing a left atrium following implantation of the device in a left atrial appendage, a distal end for facing into the left atrial appendage following implantation of the device in the left atrial appendage, and a longitudinal axis extending therethrough, the tubular foam body having a mean diameter in an unconstrained expansion; and
a self-expandable support having a proximal end with a plurality of radially-extending recapture struts and a cylindrical tubular body extending distally from radial outer ends of the recapture struts, the support carried within the tubular foam body such that the foam sidewall provides a cushion between the support and a wall of the left atrial appendage following implantation, the cylindrical tubular body comprising a plurality of struts forming a plurality of apexes,
wherein compression of the device from a diameter of about 35 mm to a diameter of about 20 mm along a minor axis transverse to the longitudinal axis causes no more than about a 5 mm reduction in the mean diameter.