US 12,171,418 B2
Transcatheter atrial septal closure device
David Dudzinski, St. Louis, MO (US); and Spencer Toder, St. Louis, MO (US)
Assigned to TAVR SOLUTIONS, LLC, St. Louis, MO (US)
Filed by TAVR SOLUTIONS, LLC, St. Louis, MO (US)
Filed on Sep. 15, 2022, as Appl. No. 17/945,536.
Claims priority of provisional application 63/244,746, filed on Sep. 16, 2021.
Prior Publication US 2023/0085611 A1, Mar. 16, 2023
Int. Cl. A61B 17/00 (2006.01)
CPC A61B 17/0057 (2013.01) [A61B 2017/00575 (2013.01); A61F 2210/0014 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A device for closing an opening in a tissue wall comprising:
a continuous unitary frame comprising:
a plurality of radially extendible distal fingers extending in a distal plane;
a plurality of radially extendible proximal fingers extending in a proximal plane, the proximal plane being different from and non-parallel with the distal plane;
an expandable waist section extending axially between the plurality of radially extendible distal fingers and the plurality of radially extendible proximal fingers;
a distal membrane covering at least one side of the plurality of radially extendible distal fingers;
a proximal membrane covering at least one side of the plurality of radially extendible proximal fingers;
first and second reinforcing filaments criss-crossing at a central intersection point and having ends attached to at least opposing ones of the plurality of radially extendible proximal fingers, the plurality of radially extendible distal fingers, or both;
wherein the device is expandable from a radially collapsed configuration in which the continuous unitary frame is elongated axially to a radially expanded configuration in which the continuous unitary frame is shortened axially; and
wherein in the radially expanded configuration, the expandable waist section is configured to be positioned within the opening in the tissue wall, the plurality of radially extendible distal fingers is configured to engage one side of the tissue wall defining the opening, and the plurality of radially extendible proximal fingers is configured to engage the other side of the tissue wall defining the opening such that the distal and proximal membranes are pressed against the sides of the tissue wall to seal the opening.