ALEXANDRIA, Va., June 16 -- United States Patent no. 12,653,537, issued on June 16, was assigned to Cardio -Renal Solutions Inc. (San Francisco).

"Device and method for variable blood flow occlusion" was invented by Troy Thornton (San Francisco).

According to the abstract* released by the U.S. Patent & Trademark Office: "A blood flow control device having a catheter adapted to be advanced into a blood vessel to a blood flow control site within the blood vessel; an expandable anchor supported by the catheter, the expandable anchor being adapted to expand to engage a wall of the blood vessel, the expandable anchor having a blood impermeable wall defining an adjustable blood flow path extending through the expandable anchor from a proximal o...