Patent ID: 11857309
Assignee: nan
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 7:
8. A method for monitoring respiration in a patient, comprising:
locating a device about a surface of the patient, wherein the device comprises:
a first accelerometer for detecting a motion in the x, y and z-axis;
a second accelerometer for detecting a tilt about the z-axis;
at least one acoustic sensor for detecting sound related to the patient's breath;
a memory comprising a lookup table, a real-time clock, and one or more instructions; and

a processor, wherein the processor:
calculates motion values from signals received from the first accelerometer;
calculates tilt values from signals received from the second accelerometer;
calculates sound values from signals received from the acoustic sensor;
filters the motion values and the rotation values according to limitations stored in the lookup table, to provide filtered motion values;
filters the sound values according to limitations stored in the lookup table, to provide filtered sound values;
assigns a time stamp to each filtered motion value and each filtered sound value using the real-time clock within the memory;
determines local maximums for the filtered motion values and local minimums for the filtered sound values; and
counts and stores a completed breath for every time one of the local maximums for the filtered motion values occurs during one of the local minimums for the filtered sound values.