Patent ID: 11903736
Assignee: XTRAVA INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A method to monitor respiration using an unobtrusive badge-size apparatus comprising:
using a capacitance sensor consisting of two series-connected capacitors, where a first conductor of each capacitor is located within the apparatus, and a body surface forms a second conductor of each capacitor and provides said series connection, where
the apparatus is attached to clothing whose separation from the body varies between zero and about 3 centimeters,
a periodic expansion and contraction of the body surface during respiration varies a capacitance of the capacitance sensor;
whereby the apparatus monitors respiration rate and depth as a function of time, all while attached to any layer of clothing; and

using the apparatus to monitor pulse rate, the pulse rate being detectable via motions on the body surface.