CARDIAC PERFORMANCE MONITORING DEVICE Russian patent published in 2008 - IPC A61B5/04 

FIELD: medical equipment.

SUBSTANCE: specified device contains equipment placed on body of every examined patient, and equipment mounted on control point. Equipment placed on body of every examined patient contains electrodes, preamplifier, high frequency generator, amplitude modulator, modulation generator, phase-shift modulator, power amplifier and transmitting antenna. Equipment mounted on control point contains receiving antenna, adjustment block, first and second heterodynes, first and second mixers, first, second, third, fourth and fifth intermediate-frequency amplifiers, correlator, third threshold block, second key, first, second and third amplitude detectors, third, fourth and fifth keys, OR-element, first, second and third processing units. Each processing unit contains microprocessor, alarm module, magnetic recorder, audio alarm module, susceptor, first delay line, first key, amplitude limiter, synchronous detector, second delay line and phase detector. Microprocessor contains first comparator, memory blocks of upper and lower levels and adjustable first threshold block. Susceptor contains first and second spectrum gage, phase doubler, second comparator and second threshold block.

EFFECT: extended operating frequency range without extended range of heterodynes frequency adjustment using receiving mirror channels.

5 dwg