US Patent Issued to Welch Allyn, Oregon Health & Science University on Feb. 11 for "Estimating hydration using capillary refill time" (Oregon, Iowa Inventors)

ALEXANDRIA, Va., Feb. 12 -- United States Patent no. 12,220,254, issued on Feb. 11, was assigned to Welch Allyn Inc. (Skaneateles Falls, N.Y.) and Oregon Health & Science University (Portland, Ore.).

"Estimating hydration using capillary refill time" was invented by Richard Howard Weitzel (Aloha, Ore.), Steven D. Baker (Beaverton, Ore.), Richard Allen Sunderland (Clive, Iowa), Matthew Lee Hansen (Portland, Ore.) and David Clark Sheridan (Beaverton, Ore.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An example system for estimating a hydration level of an individual can include: a mechanism configured to apply mechanical pressure to a digit of the individual; an light detector configured to sense the light f...