The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 31, 2022
Filed:
Jan. 13, 2017
Welch Allyn, Inc., Skaneateles Falls, NY (US);
Richard Howard Weitzel, Aloha, OR (US);
Steven D. Baker, Beaverton, OR (US);
Richard Allen Sunderland, Clive, IA (US);
Matthew Lee Hansen, Portland, OR (US);
David Clark Sheridan, Beaverton, OR (US);
Welch Allyn, Inc., Skaneateles Falls, NY (US);
Oregon Health & Science University, Portland, OR (US);
Abstract
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 from the digit; and a controller programmed to perform functions including: send a first signal to the mechanism to apply the mechanical pressure to the digit; send a second signal to the mechanism to release the mechanical pressure on the digit; determine a capillary refill time based upon a third signal from the light detector indicating an amount of time for capillaries of the individual to refill with blood; and estimate the hydration level of the individual based upon the capillary refill time and one or more additional parameters.