METHOD OF REGISTERING PATIENT'S BREATHING AND HEARTBEAT RHYTHMS AND DEVICE FOR ITS REALISATION Russian patent published in 2012 - IPC A61B5/08 A61B5/02 A61B8/02 

FIELD: medicine.

SUBSTANCE: invention relates to field of medicine. Method lies in irradiation of patient's body parts with the sum of two ultrasonic signals with differing frequencies. Current changes of phase shift between envelopes of transmitted and reflected signals, corresponding to vibrations of patient's body parts. As a result of processing of measurement results breathing and heartbeat rhythms are isolated in real time. Device for method realisation contains in transmitting part two generators, connected with two inlets of adder, whose outlet is connected to power amplifier with emitter. In receiving part device contains successively connected receiver, narrow-band amplifier and first detector, whose outlet is connected to second inlet of unit of phase shift measurement, as well as second detector, whose inlet is connected with outlet of transmitting part adder, and outlet is connected to first unit of phase shift measurement. Outlet of unit of phase shift measurement is connected with outlet of isolation of breathing and pulse constituents.

EFFECT: invention makes it possible to increase sensitivity and noise immunity in registration of breathing and heartbeat rhythms.

4 cl, 5 dwg