| 摘要 |
medical engineering. SUBSTANCE: device has pulse pickup member, amplifier unit, impulse counter unit, decoder unit, switch unit, acoustic frequency generator, AND gate and acoustic emitter. The counter unit is used for recording pulse pickup impulse number. The decoder unit converts binary counter code into unipolar code. The code coinciding with preset unipolar combination on the switch unit, acoustic signal is sent to the emitter by the acoustic frequency generator through a member so that input counter R is reset to its initial zero state. Acoustic signal indicates breathing cycle start in succession. Training load is set by means of switch unit. The greater is sum accumulated by the counter being set using the switch unit, the longer is each breathing phase duration and the higher is the training load. EFFECT: enhanced effectiveness in training respiratory rhythm. 1 dwg
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