ALEXANDRIA, Va., Sept. 3 -- United States Patent no. 12,402,942, issued on Sept. 2, was assigned to MEDTRONIC ABLATION FRONTIERS LLC (Minneapolis).

"Timed energy delivery" was invented by Mark T. Stewart (Lino Lakes, Minn.), Catherine R. Condie (Shoreview, Minn.) and Jay L. Kelley (Encinitas, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method and system for mapping tissue and producing lesions for the treatment of cardiac arrhythmias in a non-thermal and optimal manner, minimizing the amount of energy required to selectively stun or ablate the target tissues. Energy may be delivered only at the moment(s) of best device position and proximity of an electrode to target tissue, and only during a tim...