US 12,102,316 B2
Devices and methods of visualizing and determining depth of penetration in cardiac tissue
Russel Sampson, Palo Alto, CA (US); Charles Adam, San Jose, CA (US); Son Nguyen, San Jose, CA (US); and David Scott Baron, Sunnyvale, CA (US)
Assigned to ANCORA HEART, INC., Santa Clara, CA (US)
Filed by Ancora Heart, Inc., Santa Clara, CA (US)
Filed on Apr. 2, 2021, as Appl. No. 17/221,294.
Application 17/221,294 is a continuation of application No. 16/058,847, filed on Aug. 8, 2018, granted, now 10,980,529, issued on Apr. 20, 2021.
Application 16/058,847 is a continuation of application No. 15/061,748, filed on Mar. 4, 2016, granted, now 10,058,321, issued on Aug. 28, 2018.
Claims priority of provisional application 62/128,628, filed on Mar. 5, 2015.
Prior Publication US 2021/0361278 A1, Nov. 25, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 17/04 (2006.01); A61B 17/00 (2006.01); A61B 90/00 (2016.01)
CPC A61B 17/0401 (2013.01) [A61B 17/0469 (2013.01); A61B 17/0493 (2013.01); A61B 90/06 (2016.02); A61B 2017/00247 (2013.01); A61B 2017/00336 (2013.01); A61B 2017/0409 (2013.01); A61B 2017/0441 (2013.01); A61B 2017/0464 (2013.01); A61B 2090/062 (2016.02); A61B 2090/0811 (2016.02); A61B 2090/3966 (2016.02)] 16 Claims
OG exemplary drawing
 
1. A method, comprising:
advancing a tissue depth indicator within a longitudinal lumen of an elongate body of an anchor delivery device such that a distal portion of the tissue depth indicator exits a distal opening of the anchor delivery device to contact a surface of the target tissue, wherein the tissue depth indicator comprises a radiopaque indicator wire having a proximal portion and a distal portion that is more compliant than the proximal portion;
urging the distal portion of the radiopaque indicator wire along a length of the target tissue surface to delineate the edge of the tissue surface; and
advancing a distal end of the anchor delivery device into the target tissue until the distal portion of the radiopaque indicator wire deflects away from the tissue surface.