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:
Mar. 22, 2022
Filed:
May. 14, 2019
Koninklijke Philips N.v., Eindhoven, NL;
Cornelus Hendricus Bertus Arnoldus Van Dinther, Mierlo, NL;
KONINKLIJKE PHILIPS N.V., Eindhoven, NL;
Abstract
The present invention relates to the field of medical emergency signaling and user-activated medical alarm systems. In particular, a wrist-worn medical alert device () for conveying an emergency message to a caregiver () is presented, wherein the medical alert device is adapted to be worn at a wrist () of a subject (), the device comprising: a PPG unit () adapted to acquire a first PPG signal () at first wavelength (λ) and a second PPG signal () at second wavelength (λ) over time at the wrist of the subject; a processing unit () adapted to receive the first and second PPG signals () and to determine a finger movement of one or more fingers () of the subject () based on the first and second PPG signals; and a communication unit () adapted to transmit, based on the determined finger movement, an emergency message to the caregiver (). The present invention further relates to a corresponding system (), method () and computer program for carrying out said method.