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1. IN202117022081 - PHOTOPLETHYSMOGRAM DEVICE WITH SKIN TEMPERATURE REGULATOR

Office
India
Application Number 202117022081
Application Date 17.05.2021
Publication Number 202117022081
Publication Date 29.10.2021
Publication Kind A
IPC
A61B
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
Applicants MICROSOFT TECHNOLOGY LICENSING, LLC
Inventors GUPTA, Sidhant
LESTER, Jonathan Bernard
WANDER, Jeremiah
DE SOUZA, Jessica
Priority Data 16206708 30.11.2018 US
Title
(EN) PHOTOPLETHYSMOGRAM DEVICE WITH SKIN TEMPERATURE REGULATOR
Abstract
(EN) A photoplethysmogram device is provided comprising a light source configured to emit light to illuminate skin, a photo-detector configured to receive the light illuminating the skin and generate an electrical output as a function of an intensity of the received light, a skin temperature regulator configured to heat and/or cool a temperature of the skin adjacent to the photo-detector and light source to increase the signal-to-noise ratio (SNR) of the electrical output from the photo-detector, and a processor configured to generate, based on the electrical output, an output signal indicative of blood properties, including physiological parameters such as blood pressure, heart rate, stroke volume, cardiac output, total peripheral resistance, blood vessel elasticity, and arterial oxygen saturation.