RU2271839C1 - Device for anesthetization during sleep - Google Patents

Abstract

FIELD: medicine; physiotherapy.

SUBSTANCE: device can be used for treating osteochondrosis, muscular injuries and other diseases. Device for anesthetization during sleep has contact detectors connected with current pulse sequence oscillator, which is connected with control unit. Device additionally has band-pass amplifier, square detector and integrator. Control input of control unit is connected with output of comparator which has output connected with output of band-pass amplifier through integrator and square detector. Band-pass filter is adjusted to frequency of alpha rhythm of brain's potentials. Input of band-pass amplifier is connected with devices for receiving those potentials. Physiotherapeutic devices are turned on under influence of alpha rhythms of brain on the threshold of awakening.

EFFECT: improved efficiency of influence due to automatic switching-on.

1 dwg

Description

The invention relates to the field of physiotherapy with low-frequency electric currents and can be used to automatically control physiotherapeutic devices of other principles of operation (magnetic, ultrasonic, microwave, etc.) in the treatment of osteochondrosis, muscle injuries and other diseases.

In medical practice, various devices are known and widely used for physiotherapy in the form of manually controlled generators of complex electric and magnetic fields that provide local anesthesia and give a therapeutic effect.

So known apparatus "Alimp-1", operating on the principle of exposure to a traveling pulsed field and pulsed physiotherapy apparatus "Infita" using low-frequency generators of low voltage field. (S.A. Muravyev, Yu.V. Dyzhin. Conversion in the radio industry. Radio industry. - M: NIIEKR, 1992).

However, the well-known physiotherapeutic devices are not automatically controlled by pain, therefore, they can be used only during wakefulness under the supervision of medical staff. Meanwhile, pain is an obstacle to normal sleep, which complicates and prolongs the treatment, violates the mental state of a person. It would be desirable to create a physiotherapeutic device controlled by some physiological parameter and ensuring its inclusion on the threshold of awakening.

A device for controlling the rehabilitation of human muscle function is known, in which control is performed from a muscle contraction sensor or a heartbeat sensor (Yu.I. Molchanov et al. Patent No. 2153363, class 7 A 61 N 1/08. Bull. Image No. 21 from July 27, 2000). This device implements the idea of automated control by the result of actions on a physiological parameter, however, a fundamentally different technical solution is required to control pain.

The inventive device solves the problem of increasing the effectiveness of physiotherapeutic anesthesia devices by automatically turning them on under the action of the potentials of the alpha rhythm of the brain in anticipation of awakening.

The problem is solved in that the device for anesthesia during sleep, containing contact sensors connected to a current pulse generator connected to the control unit, according to the invention further comprises a band amplifier, a quadratic detector and an integrator, and the control unit is connected to the output by the control input a comparator, the input of which is connected through an integrator and a quadratic detector to the output of a strip amplifier tuned to the frequency of the alpha rhythm of the potential brain and bandpass amplifier input connected to the receiving transducers of these potentials.

The fundamental difference between the proposed device is the presence of feedback that controls the inclusion of a pulse generator at the moment of the appearance of the alpha rhythm frequencies of the brain potentials in anticipation of awakening under the influence of pain.

Automatic connection of the current pulse generator to the electrodes installed in the area of pain dramatically reduces pain, and the person continues to sleep peacefully, the alpha rhythm disappears, and the current generator automatically turns off.

The newly introduced signs resolve the technical contradiction between the duration of the physiotherapy session and its beneficial effect, since the patient is automatically connected to the anesthetic device during sleep and only for the duration of the pain.

The drawing shows a structural diagram of the claimed device.

The device for pain relief during sleep contains contact sensors 1 current pulses mounted (glued) on the pain area of a person 2, a current pulse generator 3 connected to contact sensors 1 current pulses, a control unit 4 with a power supply 5, a comparator 6 with a voltage source 7, an integrator 8 connected to the signal input of the comparator, a quadratic detector 9 connected at the output to the integrator 8, and at the input to the output of the strip amplifier 10, connected at the input to the receiving sensors 11 of the potential als alpha brain rhythm.

The device operates as follows. Patient 2 fixes electrodes of contact sensors 1 of current pulses and receiving sensors 11 potentials of alpha rhythm on his body in the area of pain manifestation. The whole device is attached to his body. Under the influence of the alpha rhythm potentials, the pulse generator 3 is turned on and delivers current pulses to the pain area under the action of control signals from block 4, received from the comparator 6, integrator 8, quadratic detector 9 and strip amplifier 10.

The device is powered from the power source 5. The response level of the control unit is regulated by the threshold voltage U ₀ at input 7 of the comparator 6.

As current pulses pass through the pain area, the pain gradually decreases and the person falls asleep. In this case, the alpha rhythm (8-10 Hz) of the patient’s brain potential is replaced by a lower frequency theta rhythm (1-3 Hz), whose signals no longer pass through the band amplifier 10, and, therefore, the control signal disappears at the output of block 4, and the pulse generator 3 is disconnected from the power source 5.

If the pain manifests itself again, the person should wake up, however, the alpha rhythm signals appear earlier and again automatically turn on the pulse generator 3, the person continues to sleep peacefully, without feeling pain.

Instead of a pulse generator 3, any physiotherapeutic device of the electric, magnetic, acoustic, or infrared types can be included. In this case, the principle of feedback from the brain to the control unit for turning on the device remains unchanged. Thus, the task of optimal dosing of the physiotherapeutic procedure is solved automatically. Since the inclusion of the pulse generator is carried out automatically according to the patient’s sensations, the “addictive” effect observed with often repeated therapeutic procedures is eliminated.

Claims (1)

A device for anesthesia during sleep, containing contact sensors connected to a current pulse train generator connected to a control unit, characterized in that it further comprises a strip amplifier, a quadratic detector and an integrator, the control unit being connected to the comparator output via a control input, an input which is connected through an integrator and a quadratic detector to the output of a strip amplifier tuned to the frequency of the alpha rhythm of the potentials of the brain, and the input of a strip amplifier connected to the receiving sensors of these potentials.