ALEXANDRIA, Va., July 9 -- United States Patent no. 12,350,021, issued on July 8, was assigned to Chelak Medical Solutions Inc (Houston).

"Non-barometric determination of hemodynamic effects of cardiac arrhythmias using signals sensed by an implantable device" was invented by Jie Cheng (Houston) and Dhanunjaya Lakkireddy (Houston).

According to the abstract* released by the U.S. Patent & Trademark Office: "Certain aspects of the present disclosure provide methods, apparatus, and computer-readable media for determining hemodynamic stability in a subject. In one example method, an optical signal is transmitted via at least one optical fiber in a set of one or more optical fibers partially disposed in a heart of the subject, wherein the at l...