US Patent Issued to Instrumentation Laboratory on Nov. 25 for "Hematocrit level detection using IR laser refraction" (Massachusetts, New Jersey Inventors)

ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,478,291, issued on Nov. 25, was assigned to Instrumentation Laboratory Co. (Bedford, Mass.).

"Hematocrit level detection using IR laser refraction" was invented by Paul McCormack (Carlisle, Mass.), Stephanie Tangard (Groton, Mass.), Alberto Gomez Martinez de Lecea (Chelmsford, Mass.) and Dan Lin (Princeton, N.J.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Principals of refraction of a light ray are used to identify the location of an interface between two materials having different refractive indices. The interface may be an interface between a plasma layer and a red blood cell layer of a centrifuged container, for example. An array of light detector...