SU1509039A2 - Reflexometer - Google Patents

Abstract

The invention relates to medical technology. The purpose of the invention is to increase the information content of the functional state of the thyroid gland by determining the time of half relaxation of the motor reaction of the limb. The reflexometer contains a high-frequency generator 1, an antenna 2, a frequency detector 3, an amplifier 4, a generator of time stamps 5, a control unit 6, the first counter unit 7, an indication unit 8, a signal presence detector 9, a signal maximum detector 10, the first 11 and the second 12 elements And, a binary counter 13, a second 14 and a third 15 recalculation units, a switching unit 16, a computational unit 17, a fourth recalculation unit 18, a peak detector 19, a key 20, a voltage divider 21, a comparator 22, a pulse former 23, a trigger 24 , recorder 25. Reflexometer allows to determine During the research, in addition to indicators such as latency, contraction time and relaxation time, the half relaxation time of the motor reaction of the limb should also be consumed.

Description

The invention relates to a medical technique, namely to reflexometers, can be used to study the state of the iro-reflex system by measuring the individual components of the limb motor reaction and is an improvement of the invention by the author. St. No. 1055473.

The purpose of the invention is to improve the information content of the functional state of the thyroid gland by determining the half relaxation time of the motor reaction of the limb.

FIG. 1 shows a functional diagram of the reflexometer; in fig. 2 - the form of the analyzed signal and time charts.

Reflexometer contains high-frequency | 1 generator with antenna 2, frequency detector 3, amplifier 4, time stamp generator 5, control unit 6, first counting unit 7, display unit 8, signal presence detector 9, signal maximum detector 10, first And and second 12 And elements, binary counter 13, second 14 and third 15 counting blocks, switching block 16, computing block 17, fourth counting block 18, peak detector 19, key 20, voltage divider 2, comparator 22, driver 23 pulse, trigger 24 and recorder 25.

The reflexometer works as follows: M.

In the initial state, all the outputs of binary counter 13 are set to the logical level “O. From the second output of the binary counter 13, the zero level is applied to the control input of the switch 20, as a result of which the switch closes and the peak detector 19 is set to the zero state. The voltage at the output of the peak detector is zero, at both inputs of the comparator 22 and, accordingly, at its output, the voltage is zero. At the output of the imaging unit 23, a logical " O is set, which arrives at the first input of the trigger setup 24, the second input of which the logical " comes from the first output of the binary counter 13.

The patient's foot is placed near the antenna 2 of the high-frequency generator 1. When the neurologic mucus hits the output tendon, an output signal is generated, and the first Bbixcxie binary counter 13 has the logical "1 (Fig. 26), which I act on the second input of the trigger 24, translates it into a single state (Fig. 2e). The signal "1 at the output of the trigger 24, received at the first input of the conversion unit 18, allows you to start the counting of pulses from the generator 5 time stamps.

But the expiration of the latent period begins a reflex movement of the limb, from the beginning of this movement to the second

The output of the binary counter 13 appears as a logical 1, which ensures the closure of the key 20, preparing a peak detector 9 for receiving information.

When the output signal of the amplifier 4 reaches its maximum value A -.- .: (Fig. 2a), the voltage at the output of the peak detector 19 reaches a maximum (Fig. 2c). After the contraction of the muscle, a period of relaxation begins, the foot returns to its original state.

The pa voltage of the output of amplifier 4 begins to decrease, the maximum detector value is recorded at the output of the peak detector, half of which from the output of the 5 body 2 is fed to the second input of the comparator 22, to the first input of which a voltage of amplitude is applied (Fig. 2d) proportional to muscle relaxation. At the moment when the voltages at both inputs of the comparator 22 become equal, at its output a differential voltage appears, through which the former 23 generates a short pulse (Fig. 2e), sets the trigger 24 to its initial state. O (fig. 2e), by himself.

5, the output of the trigger 24 to the control input of the fourth conversion unit 18 receives the signal “O, i.e., the end of the counting of the duration T ,,. On the display of the display unit 8, the result of measuring the half relaxation time of the limb's motor response is highlighted.

But when reading the result from the output of control block 6 is completed, a reset signal is received at the reset inputs of the scaling blocks 7, 14 and 15 and 18, and the blocks are reset.

Thus, the reflexometer makes it possible to determine in the course of the study, in addition to such indicators as the latent period, the contraction time, and the relaxation time, as well as half relaxation time.

0 motor limb reaction.

Technical, economic and medical efficiency of the reflexometer.

The use of a single reflex meter permits to conduct a study of the function of the thyroid gland by a contactless, timeless and not requiring special preparation of the patient for I -2 minutes.

Claims (1)

Invention Formula Reflexometer auth. St. L1055473, characterized in that, in order to increase the informativity of the functional state of the thyroid gland by determining the time of half relaxation of the limb's motor reaction, it additionally contains a peak detector, a divider by two, comparator, for. world of impulse, trigger, fourth conversion b. block, b. yuk pei-isstratia whose input 0 five five 0 connected to the first input of the peak detector, to the first input of the comparator and the output of the amplifier, and the output of the peak detector is connected to the input of a voltage divider for two, the output of which is connected to the second input of the comparator, which is connected to the input of the pulse shaper, the output of which is connected to the first trigger input whose second input is connected to the first output of the binary counter, the second output which is connected to the control input of the key, the output of which is connected to the second input of the peak detector, the trigger output is connected to the first input of the fourth scaler, the second and third inputs of which are connected respectively to the second and third inputs of the first scaler, the outputs of the fourth scaler are connected through the block switching with the input of the computing unit.