SU805996A1 - Pulsotachometer - Google Patents

Description

(54) PULSOTOHOMETER

one

The invention relates to medicine, namely to medical equipment.

A pulsothometer is known, which contains a pulse sensor, a counter, a circuit. control, converter, indicator control unit and indicator 1.

However, in determining the average heart rate, measurement may be inaccurate.

The purpose of the invention is to improve the accuracy of measuring the average heart rate.

The goal is achieved by the fact that a block of shift registers is entered, an adder and a register for storing results, the output of the pulse sensor connected to the information input of the counter, the output of which is connected to the information input of the block of shift registers whose outputs are connected to the inputs of the adder, the output of which through serially connected converter the result storage register and the indicator control unit are connected to the indicator, and the output of the control circuit is connected to the control inputs of the counter, govyh registers, register hrameni results and display control unit.

The drawing shows a block diagram of the heart rate monitor.

The pulse meter contains an external pulse sensor (not shown on the display) ,,. block 1 -shift registers, adder 2 and register 3 of storing the results. The output of the pulse sensor is connected to the information input of the counter 4, the output of which is connected to the information input of the shift register registers 1, the outputs of which are connected to the inputs of the adder 2, the output of which through the serially connected converter 5, the result register 3 and the indicator control block 6 are connected to the inductor 7. The output of the control circuit 8 is connected to the control inputs of the counter 4, the shift register unit 1, the result storage register 3 and the indicator control unit 6.

When measuring the pulse, the information input of the counter 4 is pulsed from an external pulse sensor, the pulse is counted for a period of time T, which is chosen to be a multiple of 1 minute. Upon expiration of time T, control circuit 8 generates a signal by which the number from the output of counter 4 is overwritten into the first register of the shift register unit 1, and counter 4 is zeroed and starts a new count upon the arrival of the next pulse from the external pulse sensor. According to the signal of the control circuit 8, the information is shifted by one register in block 1 of the shift registers. The next signal of the control information circuit 8, which is contained in the shift register unit 1, is fed to the inputs of the adder 2. The resultant sum is fed from the output of the calculator 2 to the input of the converter 5. In the converter 5, the binary code converts the number to the seven-segment code convenient for controlling indicator 7. From the output of converter 5, the number in the seven-segment code is rewritten to register 3 for storing the result. Upon arrival of the signal from the control circuit 8, the number recorded in the result storage register 3 is fed to the indicator control device b. The outputs of the indicator control device provide to the inputs of the indicator 7 control signals corresponding to the resulting number. A result appears on the indicator that corresponds to the number of beats of the pulse, either per minute immediately preceding the turning on of the indicator, or delayed by an interval T. After T expires, a new number corresponding to the number of beats per minute is recorded in the result storage register 3.

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Claims (1)

rt The proposed heart rate monitor allows continuous monitoring of the pulse, reducing the variation in pulse beat values per minute, taking measurements in a form convenient for medical professionals and complying with the traditional principle of medicine, accepted in medicine. An inventive pulsator instrument comprising a pulse sensor, a counter, a control circuit, a transducer, an indicator control unit and an indicator, characterized in that, in order to improve the accuracy of measuring the average pulse frequency, a shift register register, an adder and a result storage register are entered into it, and the output of the pulse sensor is connected to the information input of the counter, the output of which is connected to the information input of the block of shift registers, the OUTPUTS of which are connected to the inputs of the adder, the output of which through The optically connected converter, the result storage register and the indicator control unit are connected to the indicator, and the output of the control circuit is connected to the control inputs of the counter, the shift register unit, the result storage register and the display control unit. Sources of information taken into account in the examination 1. USSR author's certificate in application No. 2450830/13, cl. A 61 B 5/02, 1977.