US 11,717,303 B2
Devices and methods for excluding the left atrial appendage
Aaron V. Kaplan, Norwich, VT (US); David Melanson, Hudson, NH (US); Carol Devellian, Topsfield, MA (US); and Andy H. Levine, Newton, MA (US)
Assigned to CONFORMAL MEDICAL, INC., Nashua, NH (US)
Filed by Conformal Medical, Inc., Merrimack, NH (US)
Filed on Sep. 13, 2017, as Appl. No. 15/703,129.
Application 15/703,129 is a continuation of application No. 14/203,187, filed on Mar. 10, 2014, granted, now 9,943,315.
Claims priority of provisional application 61/779,802, filed on Mar. 13, 2013.
Prior Publication US 2018/0000490 A1, Jan. 4, 2018
Int. Cl. A61B 17/12 (2006.01); A61B 17/00 (2006.01); A61B 17/22 (2006.01); A61B 90/00 (2016.01)
CPC A61B 17/12181 (2013.01) [A61B 17/1215 (2013.01); A61B 17/12122 (2013.01); A61B 17/12145 (2013.01); A61B 17/12159 (2013.01); A61B 17/12172 (2013.01); A61B 17/12177 (2013.01); A61B 17/00491 (2013.01); A61B 17/12136 (2013.01); A61B 2017/00495 (2013.01); A61B 2017/1205 (2013.01); A61B 2017/22038 (2013.01); A61B 2017/22048 (2013.01); A61B 2090/064 (2016.02)] 16 Claims
OG exemplary drawing
 
1. A left atrial appendage occlusion device, comprising:
an expandable body having an open cell foam 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 cylindrical open cell foam sidewall, wherein the distal end of the expandable body comprises a distal opening for facing into the left atrial appendage following implantation and the open cell foam sidewall forms the distal opening;
a self-expandable stent carried within the expandable body wherein the foam sidewall extends distally linearly beyond the stent at least in a deployed configuration such that following implantation the foam sidewall forms a distal-most end of the device and provides a cushion between the stent and the left atrial appendage, the stent comprising a proximal end positioned within the expandable body distal to the proximal, occlusive end of the expandable body and a plurality of zig-zag struts defining a plurality of apexes including a plurality of distal apexes formed by vertices of adjacent pairs of the zig-zag struts at a distal-most end of the stent; and
a thromboresistent covering on at least a portion of the expandable body.