RU24636U1 - ELECTRIC STIMULATOR - Google Patents

Description

The technical solution relates to the field of electrotherapy, namely, devices for exposure to alternating or intermittent current, and can be used to stimulate the processes taking place in a biological object.

The proposed device implements a method of exogenous bioresonance therapy (see RU, patent 2067879), which is based on exposure to weak electromagnetic fields with certain characteristics that are in resonance with vibrations of organs and tissues of the patient's body. The frequencies of spontaneous bioelectrical activity were determined experimentally and clinically for some organs, and for other organs, the frequencies of spontaneous bioelectric activity were theoretically using known mathematical laws. When implementing the method, the patient is affected either by contact electric current using electrodes, or by a non-contact magnetic field using inductors, loops or belts.

Known electrostimulator (RU, patent 2008038, A 61 N 1/36, 1994) containing an inductor connected to the electrodes and a power source. Known electrical stimulator is intended for the treatment of paresis of the facial muscles in case of damage to the peripheral branches of the facial nerve.

The pedagogue of the known electrical stimulator should be recognized as a scope.

MnK: 7A61Nl / 36

Electrical stimulator.

An electrostimulator is also known (RU, patent 2020980 A 61 N 1/36, 1994). Known electrical stimulator contains first, second and third generators with time-varying frequencies, first, second and third frequency modulators, first, second and third master oscillators, a control unit and an amplifier. Known electrical stimulator is designed to stimulate the work of nervous and muscle tissue.

A disadvantage of the known electrical stimulator should be recognized as the complexity of its construction and the resulting unreliability in operation.

The closest analogue of the proposed electrical stimulator can be recognized as the device described in the patent of the Russian Federation 2178319 (A 61 N 1/36, 2002). The known electrical stimulator is intended for percutaneous stimulation of nerve and muscle tissue, as well as for direct stimulating muscle tissue and contains a low-frequency pulse generator of control pulses with frequency and duration regulators, as well as a series-connected DC source, switch, voltage divider and stimulating electrodes, with the output the specified generator is connected to the control input of the switch.

Known electrical stimulator works as follows. The pulse generator generates randomly adjustable frequency and duration low-frequency control pulses that are fed to the control input of the switch (for example, to the base of the transistor switch and, in the presence of a control pulse, bring the transistor to saturation state, i.e., the transistor switch is closed, and in the absence of a control pulse leads the transistor to the cutoff state, i.e., the transistor switch is open in accordance with the set arbitrary frequency and the duration of the control

pulses). The electric current from a direct current source with a voltage equal to the maximum amplitude of the stimulating pulses, passing through the switch, is converted into a constant pulse current, which is fed to the input of the voltage divider, made in the form of a potentiometer, which randomly regulates the amplitude of the stimulating pulse. The stimulated impulse regulated in amplitude arrives at the stimulating electrodes.

A disadvantage of the known design should be recognized as the lack of the possibility of its reconfiguration, which, of course, limits the possibility of its application.

The technical problem solved by the proposed device is to develop a contact electrical stimulator that provides control of the muscular and nervous tissue.

 The technical result obtained by the implementation of an electric stimulator is to provide the possibility of exposure to nerve and muscle tissues using pathogenetically significant structural resonance frequencies.

To obtain the indicated technical result, it is proposed to use a design containing an electronic unit and at least two stimulating electrodes, the electronic unit containing a programmable logic integrated circuit, to the first input of which a master pulse generator is connected, to the second input of which a control panel is connected, the first output programmable logic integrated circuit is connected to the display panel, the second output is connected to the sound indicator, the third and fourth outputs are connected to the first and second inputs of the frequency switch, the output of which is connected to the electrodes through a current amplifier, while the programmable logical integral

the circuit is configured to rebuild the logic by means of a personal computer connected to its additional input, all elements of the electronic unit are connected to the power supply, the stimulating electrodes are made of flexible conductive material, in particular graphitized conductive fabric, and a microcircuit of the type " ALTERA. In particular, the ALTERA IPM7128FLC8415 chip can be used, the master oscillator can be made on the basis of the K1533LAZO chip, which provides the generation of signals with a frequency of up to 1.8 MHz. The display panel and sound indication are intended to indicate the change of mode, the beginning and end of the cycle. The control panel is designed to start the device. The programmable logic integrated circuit determines the conditions for the formation of pulses from the generator to the switch, which sets the current pulses to the electrodes.

The drawing shows a block diagram of the device, with the following notation used: master oscillator 1, control panel 2, programmable logic integrated circuit 3, display panel 4, switch 5, amplifier 6, audible indication 7, power supply 8, stimulating electrodes 9.

The proposed device in the option of restoring the nervous and vascular tissue works as follows. One of the conductive tissue electrodes is applied to the affected area, and the second electrode to a healthy area of the body located near the affected area. The electrodes are pre-wetted with a liquid, preferably boiled water. The electrodes are connected to the outputs of the amplifier. Mainly for fixing

electrodes on the patient’s body use an elastic bandage that is protected from wetting with a polymer film. On the controlled panel, the current regulator is set to the position corresponding to the absence of current. After that, the electrical stimulator is connected to the mains voltage with characteristics of 220 V50 Hz. Device automatically

successively delivers a signal to the electrodes with a triangular shape of the working pulse, starting with a frequency of 200 Hz envelope component 50 000 Hz with the corresponding frequencies of the carrier component. Session time is set by timer to 60 minutes In this case, the operation of the used frequency states is distributed equally for the duration of the session. At the first frequency mode, the patient may have tingling or vibration under the electrodes; in this, it is necessary to reduce the current until the discomfort disappears. At other frequency values, the patient restores the current level to the maximum level, since the patient does not experience unpleasant sensations in the used frequency range with the waveform used and the area of the electrodes. After the session, the current regulator is returned to the zero position, disconnect the device from the network and remove the electrodes from the patient’s body.

The proposed device in the option of restoring muscles and ligaments works as follows. Both electrodes are placed on the affected area. The electrodes are pre-wetted with a conductive liquid, preferably boiled water. The electrodes are connected to the outputs of the amplifier. Advantageously, an elastic bandage is used to fix the electrodes on the patient’s body, which is protected from getting wet by a polymer film. On the controlled panel, the current regulator is set to the position corresponding to the absence of current. After that, the electrical stimulator is connected to the mains voltage with characteristics of 220 V50 Hz. Device automatically

successively delivers a signal to the electrodes with a rectangular shape of the working pulse, stimulating the excitability of human tissues under the electrodes. The frequency of the envelope is constant and amounts to 2,000 Hz, which excludes interventions in the functional physiological states of the neuromuscular apparatus. The frequencies of the carrier component are 6 to 12 to 24 times higher than the envelope frequencies and provide improved microcirculation of physiological fluids in the tissues. To prevent the addiction of mips to stimulation, a continuous signal is interrupted with a frequency of 2-4-8 Hz, stimulating the sympathetic nervous system, and the duration of the working period and pauses are equal. Initially, the carrier frequency is set to 24 times the envelope frequency and the burst frequency of 8 Hz, then at the same carrier frequency, the gap is 4 Hz, and then 2 Hz. After that, the carrier frequency is set to 12 times the envelope frequency of the component, then the gaps of 8.4 and 2 Hz are used sequentially. Similarly, effects on the frequency of the carrier component are used 6 times higher than the envelope component. On all variants of the modes, the patient himself sets the current level most comfortable for him, which provides visually observed contractions of the muscular system. Session time is set by timer to 60 minutes After the session, the current regulator is returned to the zero position, disconnect the device from the network and remove the electrodes from the patient’s body.

Below are examples of the use of the proposed device in both implementations.

Patient M., 38 years old, suffered an acute respiratory disease complicated on the sixth day by peripheral paralysis of the left facial nerve (the eye is wide open, lacrimation, the angle of the mouth is lowered, salivation, the mouth is ajar). First electrode

placed on the affected half of the face, covering the eyeball with a cotton ball and plastic wrap. A second electrode was applied to a healthy area of the neck. Treatment sessions were performed daily. Before the fifth session, signs of restoration of the muscles of the eye and mouth were noted. By the seventeenth session, a complete restoration of the activity of facial muscles was noted. There were no relapses and side effects.

Patient B., 63 years old. Due to the large body weight (more than PO kg with a height of 166 cm), it suffers from chronic sprain of the ankle joints, aggravated after physical exertion. Both electrodes of graphitized tissue moistened with boiled water were superimposed on the ankle joint area. The electrical signal supply mode corresponded to the second embodiment of the device. The symptomatology of ankle joint ligament stretching was stopped in one session. Relapse was observed after six months when carrying heavy loads over a long distance. Symptoms (pain when walking and, to a lesser extent, at rest, as well as swelling of the joints) were also stopped in one session.

Using the device provides an opportunity

effects on nerve, vascular, muscle tissues and ligamentous apparatus using pathogenetically significant structurally resonant frequencies.

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Claims (4)

1. An electrical stimulator containing an electronic unit and at least two stimulating electrodes, the electronic unit comprising a pulse generator, as well as a direct current source and a switch, characterized in that the electronic unit further comprises a programmable logic integrated circuit, to the first input of which is connected master pulse generator, to the second input of which the control panel is connected, the first output of the programmable logic integrated circuit is connected to the display panel, the second output is connected to the sound indicator, the third and fourth outputs are connected to the first and second inputs of the frequency switch, the output of which is connected to the electrodes through a current amplifier, while the programmable logic integrated circuit is capable of rebuilding logic through a personal computer connected to its additional input, all elements of the electronic unit connected to the power supply, stimulating electrodes are made of flexible conductive material, and as a programmable logic integration noy circuit chip used type "ALTERA".  2. The electrical stimulator according to claim 1, characterized in that the electrodes are made of graphitized conductive fabric.  3. The electrical stimulator according to claim 1, characterized in that the chip "ALTERA" IPM7128FLC8415 is used. 4. The electrical stimulator according to claim 1, characterized in that the master oscillator is made on the basis of the K 1533LA30 microcircuit, which generates signals with a frequency of up to 1.8 MHz.