US 10,376,680 B2
Methods, systems, and devices for resizable intra-atrial shunts
Edward I. McNamara, Chelmsford, MA (US); Michael W. Sutherland, Pelham, NH (US); Matthew J. Finch, Medford, MA (US); and Stephen J. Forcucci, Winchester, MA (US)
Assigned to Corvia Medical, Inc., Tewksbury, MA (US)
Filed by CORVIA MEDICAL, INC., Tewksbury, MA (US)
Filed on Oct. 8, 2015, as Appl. No. 14/878,710.
Application 14/878,710 is a continuation of application No. 13/726,425, filed on Dec. 24, 2012, granted, now 9,205,236.
Claims priority of provisional application 61/579,426, filed on Dec. 22, 2011.
Claims priority of provisional application 61/659,520, filed on Jun. 14, 2012.
Prior Publication US 2016/0022423 A1, Jan. 28, 2016
This patent is subject to a terminal disclaimer.
Int. Cl. A61M 27/00 (2006.01); A61F 2/24 (2006.01); A61B 17/00 (2006.01)
CPC A61M 27/002 (2013.01) [A61F 2/24 (2013.01); A61F 2/2418 (2013.01); A61F 2/2493 (2013.01); A61B 2017/00247 (2013.01); A61B 2017/00575 (2013.01); A61B 2017/00584 (2013.01); A61B 2017/00592 (2013.01); A61B 2017/00606 (2013.01); A61B 2017/00623 (2013.01); A61F 2/2412 (2013.01)] 23 Claims
OG exemplary drawing
 
1. An expandable device adapted for percutaneous delivery into a membrane of a patient's heart, the device comprising:
first and second anchors adapted to contact, respectively, a first side and a second side of the membrane;
a retainer interconnecting the first and second anchors, the retainer being adapted to permit blood to flow across the membrane at a first flow rate; and
a shunt removably attachable to the retainer, the shunt being receivable within the retainer so as to enable the device to conduct blood across the membrane at a second flow rate, the shunt configured to be percutaneously delivered to the retainer after the retainer is implanted into the membrane of the patient's heart, wherein the shunt comprises a frame having at least one aperture associated with a flap releasably secured in place with a bio-resorbable material so as to partially close the aperture.