SU1503745A1 - Apparatus for determining vibromotor reaction of the man - Google Patents

Abstract

This invention relates to the field of medicine. The purpose of the invention is to increase the reliability of the study of the dependence of the latent period of a human's vibromotor reaction on the state of the hand vibrobreptors. The device consists of a signal generator 1, a vibration sensor 2 and a time recorder 3. The vibration sensor 2 is made in the form of a rod 4 from a ferromagnetic material installed in the solenoid, with a button 5 on the upper end. From the signal generator 1, a vibration stimulus is fed through the rod 4 and a button on the test subject's finger and at the same time the time recorder is activated. When sensing from the vibratory stimulus button, the subject presses the button. The opening contact 7 turns off the time recorder and the signal generator. The time recorder records the time of the latent period. Spring 6 provides the return rod 4 to its original position. 1 il.

Description

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The invention relates to medical technology, and can be used for psycho-physiological research.

The purpose of the invention is to increase the reliability of the study of the dependence of the latent period of a human's vibromotor reaction on the state of the hand vibrobreptors.

The drawing shows a functional diagram of the device.

A device for determining the vibromotor reaction of a person includes a master oscillator 1, a vibration sensor 2, a recorder 3, a rod 4 of ferromagnetic material, a button 5, a spring 6, a normally closed contact 7, a solenoid 8.

The device works as follows.

The nail phalanx of the finger of the patient is placed in the initial position, touching the cluster 5 of the upper part of the rod 4 of the vibration sensor 2. The researcher sets the required frequency of the vibration stimulus and turns on the signal generator. At the same time, the rod 4 of the vibration sensor 2 begins to vibrate and oscillations appear on the tape of the recorder 3. The subject, op; his finger touching the button 5, the vibration stimulus, presses the button. Moving down the rod 4 leads to opening the contact 7, breaking the circuit and disconnecting the recorder 3 times. The researcher records the registrar 3 times, which recorded

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time from the beginning of the vibration stimulus on the test subject's finger to the start of the response, i.e. the duration of the latent period of the vibromotor reaction. The subject stops pressing the button 5, and the rod 4 under the action of the spring 6 returns to its original position. In this case, the switch 7 occupies the initial position, and the device is ready to be re-turned on for examination.

Claims (1)

Invention Formula A device for determining the human vibromotor response, containing a master oscillator, a vibration sensor, a recorder, characterized in that, in order to increase the reliability of the study of the dependence of the latent period of a human vibration motor response on the state of the vibrating receptors of the hand, it contains a normally closed contact from a ferromagnetic material installed inside a solenoid, with a button on one of the ends, an emphasis on a normally closed contact with the other end and a spring to return to the outcome a position, with one of the contacts of a normally closed contact electrically connected with the output of the master oscillator, and the other with the input of the recorder.