US 11,744,615 B2
Pericardial inflation catheter and systems and methods employing same
Kevin Van Bladel, San Ramon, CA (US); Lon S. Annest, New York, NY (US); and Michael S. Dana, Fremont, CA (US)
Assigned to BioVentrix, Inc., San Ramon, CA (US)
Filed by BioVentrix, Inc., San Ramon, CA (US)
Filed on Sep. 24, 2020, as Appl. No. 17/31,435.
Prior Publication US 2022/0087715 A1, Mar. 24, 2022
Int. Cl. A61B 17/34 (2006.01); A61B 17/00 (2006.01)
CPC A61B 17/3474 (2013.01) [A61B 17/00234 (2013.01); A61B 17/3423 (2013.01); A61B 2017/003 (2013.01); A61B 2017/00247 (2013.01); A61B 2017/3425 (2013.01); A61B 2217/007 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A method for performing a therapeutic intervention in a pericardial space of a heart, the method comprising:
delivering a catheter into a right atrium of the heart;
steering the catheter within the right atrium so that a distal end of the catheter is positioned adjacent an access site in the right atrium;
anchoring the distal end of the catheter in a heart wall of the right atrium adjacent the access site including engaging the heart wall with an anchoring member that is disposed within a lumen of the catheter;
inverting the heart wall at the access site to separate an exterior surface of the inverted heart wall from contact with parietal pericardial tissue;
penetrating the inverted heart wall at the access site to provide access to the pericardial space of the heart including extending a needle through the inverted heart wall; and
delivering a device through a penetration in the inverted heart wall to perform the therapeutic intervention in the pericardial space of the heart.