ALEXANDRIA, Va., Oct. 27 -- United States Patent no. 12,773,550, issued on Oct. 27, was assigned to ABIOMED INC. (Danvers, Mass.).

"Fluoro-less system and method for delivering catheter-based blood pumps" was invented by Vincent Roy (Danvers, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The disclosed system and method generally involve using guidewire imaging technology to create a three-dimensional image or map of the vessels all the way from an insertion site to the heart. This imaging provides useful landmarks and information about tortuosity and position. The method then measures pump and/or pump catheter position during insertion using direct or indirect techniques. This pump position can then b...