DEVICE AND SYSTEM FOR MONITORING OF PULSE-RELATED INFORMATION OF A SUBJECT

摘要

Various embodiments relate to a wearable device for obtaining signals from a subject for use in the monitoring of pulse-related information of the subject. To enable the use of such a device in the monitoring of pulse-related information, which provides for unobtrusive, reproducible, easy to use, and simple measurements, the device comprises a body, a PPG signal sensing unit for acquiring a first PPG signal from a first body location of the subject, and an imaging unit for acquiring a sequence of images from a second body location of the subject's body different from the first body location, said sequence of images being configured for deriving a second PPG signal for the second body location of the subject. Said PPG signal sensing unit and said imaging unit are mounted in or at the device body and are configured to simultaneously acquire the first PPG signal and the sequence of images.

主权项

1. A wearable device for obtaining signals from a subject for use in the monitoring of at least one of pulse transit time and pulse arrival time, said device comprising:
a device body, a PPG signal sensing unit for acquiring a first photoplethysmography, (PPG), signal from a first body location of the subject's body, wherein the first PPG signal sensing unit is in contact with the first location, and an imaging unit for acquiring a sequence of images from a second body location of the subject's body different from the first body location, said sequence of images being configured for deriving a second PPG signal for the second body location of the subject's body, wherein said PPG signal sensing unit and said imaging unit are mounted in or at the device body and are configured to simultaneously acquire the first PPG signal and the sequence of images, and a processing unit for deriving the second PPG signal from said sequence of images, wherein the processing unit is configured to determine pulse-related information comprising at least one of pulse transit time and pulse arrival time based on the first PPG signal and the second PPG signal.