ALEXANDRIA, Va., Oct. 27 -- United States Patent no. 12,773,255, issued on Oct. 27, was assigned to Biosense Webster (Israel) Ltd. (Yokneam, Israel).
"Impedance controlled RF transseptal perforation" was invented by Debby Highsmith (Irvine, Calif.) and Joaquin Kurz (Irvine, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An example RF ablation system including a transseptal needle having an ablation electrode thereon can be used to perform a transseptal perforation using RF energy. Ablation energy can be applied and/or terminated based on a change in impedance at the ablation electrode when the electrode come into or out of contact with tissue. The transseptal needle can further include magnetic field ...