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:
Jun. 27, 2023
Filed:
Feb. 23, 2021
Welch Allyn, Inc., Skaneateles Falls, NY (US);
Lei Guo, Camillus, NY (US);
Thaddeus J. Wawro, Auburn, NY (US);
Welch Allyn, Inc., Skaneateles Falls, NY (US);
Abstract
A wearable device for sensing vital signs includes a housing defining an interior cavity. An optical unit is positioned inside the interior cavity. The optical unit includes one or more light emitters that emit optical signals, at least one polarizer orientated to block optical signals having a predetermined polarity direction, and one or more light sensors that receive optical signals that pass through the at least one polarizer. An acoustic unit is positioned inside the interior cavity, and has a microphone to receive acoustic signals that enter into the interior cavity. The acoustic signals are used to non-invasively estimate blood pressure.