ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,745,999, issued on Sept. 29, was assigned to Ancora Heart Inc. (Santa Clara, Calif.).

"Devices and methods of visualizing and determining depth of penetration in cardiac tissue" was invented by Russel Sampson (Palo Alto, Calif.), Charles Adam (San Jose, Calif.), Son Nguyen (San Jose, Calif.) and David Scott Baron (Sunnyvale, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed herein are devices and methods for assessing the surface of a target cardiac tissue and for delivering a tissue anchor to cardiac tissue at a preselected depth within the myocardium in a beating heart procedure. In one variation, an anchor delivery device comprises an ...