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

Claim 7:
8. A system to monitor and report respiration using an unobtrusive badge-size apparatus comprising:
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 surface 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;
a signal processing and control module to condition and interpret said sensor data and format it for transmission; and
a wireless communication module to send said sensor data for further analysis and display;
whereby the apparatus monitors respiration rate and depth as a function of time, all while attached to any layer of clothing;
wherein the apparatus is usable to monitor pulse rate, the pulse rate being detectable via motions on the body surface.