ALEXANDRIA, Va., March 31 -- United States Patent no. 12,590,947, issued on March 31, was assigned to Medtronic Vascular Inc. (Santa Rosa, Calif.).

"Systems and methods for controlling bi-directional forces for clot assessment" was invented by Trevor Huang (Maple Grove, Minn.), Charlene Yuan (Plymouth, Minn.) and Tessy Kanayinkal (Maple Grove, Minn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Systems and methods to analyze blood or other fluid sample. The systems and methods utilize bi-directional magnetic forces to push or pull a magnetic object along a post in a chamber housing the fluid sample both before and after clot initiation has been implicated. The magnetic object can be threadably connected to ...