WEARABLE SENSING BAND

摘要

A wearable sensing band is presented that generally provides a non-intrusive way to measure a person's cardiovascular vital signs including pulse transit time and pulse wave velocity. The band includes a strap with one or more primary electrocardiography (ECG) electrodes which are in contact with a first portion of the user's body, one or more secondary ECG electrodes, and one or more pulse pressure wave arrival (PPWA) sensors. The primary and secondary ECG electrodes detect an ECG signal whenever the secondary ECG electrodes make electrical contact with the second portion of the user's body, and the PPWA sensors sense an arrival of a pulse pressure wave to the first portion of the user's body from the user's heart. The ECG signal and PPWA sensor(s) readings are used to compute at least one of a pulse transit time (PTT) or a pulse wave velocity (PWV) of the user.

主权项

1. A wearable sensing band, comprising:
a strap which is attached to a first portion of the user's body; one or more primary electrocardiography (ECG) electrodes disposed on the strap such that whenever the wearable sensing band is worn by the user, the primary ECG electrodes are in electrical contact with said first portion of the user's body; one or more secondary ECG electrodes disposed on the strap such that whenever the wearable sensing band is worn by the user, the secondary ECG electrodes are electrically isolated from said first portion of the user's body and are positioned so as to be contacted by a second portion of the user's body located on the opposite side of the user's heart from said first portion of the user's body; one or more pulse pressure wave arrival (PPWA) sensors disposed on the strap such that whenever the wearable sensing band is worn by the user, the PPWA sensors are in proximity to or contacting said first portion of the user's body; and wherein said primary and secondary ECG electrodes detect an ECG signal whenever the secondary ECG electrodes make electrical contact with said second portion of the user's body, and said PPWA sensors sense an arrival of a pulse pressure wave to said first portion of the user's body from the user's heart.