RU2325929C2 - Method of electric impact on living organism and related device - Google Patents

Abstract

FIELD: medicine.

SUBSTANCE: invention group refers to medicine and is applied for electric impact of living organism. Electrodes are fixed on coetaneous covering and/or mucous membrane and signal advanced. Signal is controlled depending on electrochemical processes in coetaneous covering and/or mucous membranes as a result of electrodes and electric signal interaction with coetaneous covering and/or mucous membrane. Electric signal at that is advanced through electrodes and inductance coil. Duration of electric impact and electric signal form change is controlled depending on generation duration or double layer capacity change, or by generation duration or double layer capacity change and active skin resistance change. Electrical impact device contain active and passive electrodes, inductance coil connected with its first output to passive electrode, power supply and series control impulse parameters unit, micro PC and indication unit. Indication unit consists of electrochemical processes duration evaluator, electric signal form parameter regulator, pumping unit. Second input of micro PC is connected to output of electrochemical processes duration evaluator, input of which is connected to active electrode and second output of inductance coil. Coil input is connected to output of pumping unit, input of which is connected to output of micro PC. Output of power supply is connected to control impulse parameters unit, to second inputs of electrochemical processes duration evaluator, pumping unit, electric signal form and indication control and third input of micro PC and electrodes. Offered invention group enables to optimise electric impact period for living organism.

EFFECT: optimisation of electric impact period for living organism.

8 cl, 12 dwg

Description

The invention relates to medicine and medical equipment, in particular, to methods and devices for electric exposure to a living organism, and can be used for diagnostic, therapeutic, rehabilitation, and preventive purposes, as well as in the field of research related to the study of the effect of various factors on a living organism.

Known methods and devices for exposure to alternating or intermittent electric current supplied through contact electrodes.

The method of electric action on a living organism, described in the description of the patent of the Russian Federation No. 2155614, IPC 7 A61N 1/36, published on 09/10/2000, consists in applying electrodes to the selected area, choosing either a constant or a “floating” frequency mode the repetition rate of stimulating pulses (in constant frequency mode), the duration between adjacent pulses in a "bundle", the choice of the operating mode either without feedback or with feedback, starting the electric stimulator, setting the therapy time, implementing the amplitude mode but-time modulation, setting a duty ratio of trapezoidal pulses, setting the energy level of exposure to the individual patient's sensitivity threshold.

The specified method of adaptive electrical stimulation provides the attending physician control of the results of therapy according to feedback, based on the analysis of the dynamics of free vibrations of stimulating impulses.

The disadvantages of this method are the low probability of exposure to thin C-fibers, responsible for the production of peptides and having a high threshold of excitation, as well as the inability to control the process of electrical effects on a living organism, depending on the course of electrochemical processes.

Known adaptive pacemaker according to the patent of the Russian Federation No. 2155614, IPC 7 A61N 1/36, published September 10, 2000. The stimulator contains a block of rectangular pulses, a control unit, a control unit for energy exposure, an output unit, passive and active electrodes, a unit for generating bursts of pulses, feedback unit, individual norm memory unit and probe signal recording unit.

The disadvantages of the known device are the lack of control units for the process of electric action on a living organism, depending on the course of electrochemical processes.

Closest to the claimed technical solutions are protected by the patent of the Russian Federation No. 2161904, IPC 7 A61 B 5/05, A61H 39/00 for the invention "Method for assessing the electrophysiological state of a person and a device for its implementation", published on January 20, 2001.

The known method consists in installing the active and passive electrodes on the skin, connecting high-quality inductance coils to the active and passive electrodes saturated with electromagnetic energy, passing through the interelectrode fabric electrical vibrations arising in the oscillatory circuit formed by the circuit: active electrode - high-quality inductance coil - passive electrode - interelectrode tissue - an active electrode, and impact assessment based on the measurement of frequency or amplitude, or for attenuation of these vibrations.

The disadvantages of this method are the lack of ability to control the process of electrical effects on a living organism, depending on the course of electrochemical processes.

The problem to which the invention is directed, is to increase the efficiency and optimize the time of exposure of existing methods of electrical effects on a living organism.

The technical result when using the proposed method of electric action on a living organism is to increase the likelihood of exposure to thin C-fibers, responsible for the production of peptides and having a high threshold of excitation, providing the ability to control both the duration of the electric effect and the change in the shape of the electric signal depending on the course of electrochemical processes . By a waveform is meant both the actual form of a single signal and the parameters of a series of pulses (frequency of bursts of pulses, the number and frequency of pulses in a packet, the nature of the change in the amplitude of the pulses, etc.).

The technical result is achieved by the fact that in the method of electrical exposure to a living organism, including the installation of electrodes on the skin and passing through the electrodes of an electrical signal from an inductor, the electrodes are installed and / or on mucous surfaces. In this case, a high-amplitude electric signal is used, and the duration of the electric exposure and the change in the shape of the electric signal are controlled depending on the course of electrochemical processes that occur on the skin and / or mucous surfaces as a result of the interaction of the electrodes and the electric signal with the skin and / or mucous surfaces.

The duration of the electrochemical processes is determined by the duration of the formation of the capacity of the double layer or by the duration of the change in the active skin resistance, or by the duration of the formation of the capacity of the double layer and the change in the active skin resistance.

The change in the form of exposure is controlled depending on the change in the capacity of the double layer or on the change in the active skin resistance, or together from the change in the capacity of the double layer and the active skin resistance.

The use of a high-amplitude electric signal provides higher impact efficiency, while the safety of such an impact for a living organism is ensured by limiting the energy accumulated in the inductor.

The known device according to the patent of the Russian Federation No. 2161904, IPC 7 AB 5/05, AC 39/00, published January 20, 2001, contains active and passive electrodes, an indication unit, a unit for setting parameters of control pulses, a controlled electronic key, a power source, a microcomputer, the first input port of which is connected to the control pulse parameter setting unit, and an analog converter is a code whose input is connected to the active electrode, and the output is connected to the second input port of the microcomputer, the first microcomputer output is connected to the control input of the controlled elec throne key, the first output of which is connected to the active electrode, the second - the first pole of the power source, and the switching input is connected to a first end of the high-Q inductor, the second end of which is connected to the passive electrode, and the second pole of the power source.

The disadvantages of the known device are the lack of control units for the shape of the electric signal and blocks for determining the duration of the electrochemical processes.

The problem to which the claimed invention is directed, is to expand the functionality of existing devices of electric action on a living organism by controlling the process of electric action, depending on the course of electrochemical processes.

The technical result provided by using the inventive device of electrical effects on a living organism consists in the ability to control both the duration of the electrical effects and the change in the shape of the electric signal depending on the course of electrochemical processes. By a waveform is meant both the actual form of a single signal and the parameters of a series of pulses (frequency of bursts of pulses, the number and frequency of pulses in a packet, the nature of the change in the amplitude of the pulses, etc.)

The technical result is achieved by the fact that a device for electromotive action on a living organism containing active and passive electrodes connected to an inductor, a power source and a series-connected unit for setting parameters of control pulses, a microcomputer and an indication unit, additionally a number of units are introduced.

The unit for determining the duration of electrochemical processes can be performed in the form of an analog-to-code converter, a comparator, a memory register, and a scaling device.

The control unit for the shape parameters of the electric signal can be made in the form of a demultiplexer and a set of RC circuits or in the form of an optocoupler and a capacitor

The pump forming unit comprises a transistor and a diode.

As an inductor, either the coil itself or a transformer or autotransformer can be used.

The invention is illustrated by drawings.

Figure 1 shows the functional diagram of the device.

Figure 2 shows a view of the signal before touching the skin.

The change in the capacity of the double layer and active resistance in time is shown in Fig.3.

Figure 4 shows the dynamics of the waveform characteristic of a change in the predominantly double layer capacitance.

Figure 5 shows the dynamics of the waveform characteristic of the joint change in the capacity of the double layer and active resistance.

Figure 2, 4 and 5 horizontally shows the time in milliseconds, and vertically - the voltage in volts. Figure 3 horizontally shows the time, vertically - the resistance R and the capacity of the double layer C.

Figure 6 shows the functional diagram of the unit for determining the duration of the course of electrochemical processes.

7 and Fig. 8 are functional diagrams of embodiments of a control unit for electric waveform parameters.

The pump forming unit is shown in Fig.9.

Figure 10 shows the connection diagram of the inductor.

Figure 11 shows the connection diagram of the autotransformer.

On Fig shows the connection diagram of the transformer.

The claimed method is implemented in a device for electric exposure to a living organism, which contains a block for setting the parameters of control pulses (BZPUI) 1 (Fig. 1), a microcomputer 2, a pump forming unit (BPS) 3, a power supply 4, a unit for determining the duration of the course of electrochemical processes (BODEP ) 5, display unit 6, control unit for electric waveform parameters (BUPFES) 7, inductance coil (KI) 8, electrodes 9 and 10.

The output of the unit for setting the parameters of control pulses (BZPUI) 1 is connected to the first input of the microcomputer 2, and its first output is connected to the first input of the pump forming unit (BPS) 3.

The power supply 4 is connected to the second input of the pump formation unit (BFN) 3, the third input of the microcomputer 2, the first input of the control pulse parameter setting block (BZPUI) 1, to the second inputs of the electrochemical process duration determination blocks (BODEP) 5, indication 6 and control electric signal waveform parameters (BUPFES) 7.

The second output of the microcomputer 2 is connected to the first input of the display unit 6.

The third output of the microcomputer 2 is connected to the first input of the electric signal shape control unit (BUPFES) 7, the outputs of which are connected to the outputs of the inductance coil (KI) 8 and to the passive and active electrodes 9 and 10, respectively.

The active electrode 10, in addition, is connected to the first input of the unit for determining the duration of the electrochemical processes (BODEP) 5, the output of which is connected to the second input of the microcomputer 2.

An embodiment of the unit for determining the duration of the course of electrochemical processes (BODEP) 5, shown in Fig.6, contains an analog converter - code 11, connected by the outputs to the inputs of the memory register 12 and the scaling device 13. Their outputs are connected to the inputs of the comparator 14. The input of the converter 11 is the first input of the unit for determining the duration of the electrochemical processes (BODEP) 5, and the output of the comparator 14 is the output of the unit for determining the duration of the electrochemical processes (BODEP) 5. P Connection to a power source is not shown in the drawing.

An embodiment of the electric signal waveform control unit (BUPFES) 7 shown in Fig. 7 contains a demultiplexer, which, in turn, contains a decoder (DS) 15, N outputs of which are connected to N relays (P) 16, 17, 18 Normally open contact groups K 19, 20, 21 of the relay are connected to the first terminals of the RC circuits, consisting of series-connected capacitors (C) 22, 23, 24 and resistors (R) 25, 26 and 27. The other terminals of the RC circuits are combined and are the first output of the electric signal waveform control unit (BUPFES) 7. V the course of the decoder (DS) 15 of the demultiplexer is the first input of the control unit for the parameters of the electric signal waveform (BUPFES) 7. The combined outputs of the normally open contact groups K 19, 20, ..., 21 are the second output of the control unit for the parameters of the electric waveform (BUPFES) 7 The power connection is not shown in the drawing.

Another embodiment of a possible embodiment of an electric signal waveform control unit (BUPFES) 7 shown in FIG. 8 comprises serially connected optocoupler 28 and a capacitor C 29, the first input of the optocoupler 28 being the first input of an electric signal waveform control unit (BUPFES) 7, and the second input of the optocoupler 28 is grounded. The first output of the optocoupler 28 is the first output of the electric signal shape control unit (BUPFES) 7, the second output is connected to the second output of the capacitor C 29, the first output of which is the second output of the electric signal shape control unit (BUPFES) 7. Connect to a power source the drawing is not shown.

The embodiment of the pump forming unit (BFN) 3 shown in Fig. 9 contains a key transistor 30, the base of which is the first input of the pump forming unit (BFN) 3, the emitter is the second input of the pump forming unit (BFN) 3, the collector is connected to the anode diode 31, the cathode of which is the output of the pump formation unit (BPS) 3.

The ends of the winding of the inductor (KI) 8 are its first and second outputs (figure 10) connected to the passive and active electrodes, respectively. The input of the inductor (KI) 8 is combined with the end of the winding connected to its second output.

In the case of the inductance coil (KI) 8 in the form of an autotransformer (Fig. 11), the ends of the autotransformer winding are its first and second outputs connected to the passive and active electrodes, respectively. The input of the autotransformer is connected to the midpoint of its winding.

In the case of the inductance coil (KI) 8 in the form of a transformer (Fig. 12), the input of the transformer is connected to the first output of the primary winding of the transformer, and the second output of this winding is connected to the common wire of the device. The outputs of the transformer are the terminals of the secondary winding.

The display unit 6 may be made in the form of an alphanumeric, graphic, liquid crystal, luminescent, LED indicator or in any other way.

Microcomputer 2 may be a family 51, a PIC processor, and the like.

The unit for setting the parameters of control pulses (BZPUI) 1 both schematically and constructively can be implemented depending on the selected models of microcomputers 2 and display unit 6, for example, on buttons or switches.

The device of electrical effects on a living organism works as follows.

The device is connected to a power source 4 (figure 1).

From the microcomputer 2 (Fig. 1), a triggering pulse is supplied to the input of the pump forming unit (BFN) 3. Its output connects the inductor (KI) 8 to the power source 4.

During the first phase of the formation of the acting pulse, the voltage applied to the inductor (CI) 8 causes a linearly increasing current to flow through it and thereby the electromagnetic inductor (CI) 8 accumulates. Those. at this moment, the energy is "pumped" into the inductor (CI) 8, hence the "pump".

At the end of the triggering pulse, the second phase of the formation of the acting pulse begins. The pump forming unit (BFN) 3 disconnects the inductor (KI) 8 from the power source 4, and the energy stored in it excites free oscillations in the shock excitation circuit, consisting of an inductor (KI) 8, its stray capacitance, leakage capacitance, circuitry and etc. (After connecting the electrodes to the skin / mucous surface, their capacitance and active resistance also turn out to be connected to the shock excitation circuit and participate in the formation of electrical impulses.)

Then the first phase is repeated, etc.

An example of pulses that occur in the shock excitation circuit before the electrodes touch the skin is shown in FIG. 2.

The electrodes connected to the inductor are installed at some distance from each other on the skin surface or mucous membrane of a person or animal.

The control signals from the microcomputer 2 also enter the control unit for the shape of the electric signal (BUPFES) 7, which is connected in parallel with the outputs of the inductor (KI) 8 and electrodes E 9 and E 10. The unit for determining the duration of the electrochemical processes (BODEP) 5 gives signals about the dynamics of electrochemical processes in microcomputer 2. In accordance with the methodology (algorithm) of exposure, microcomputer 2 controls the shape of electrical signals, and the shape of a single pulse is controlled by the control unit s electrical signal (BUPFES) 7, and the pulse series parameters are provided to the pump forming unit (BFN) 3 and further inductor (CI) 8, the microcomputer 2 directly regulated.

The unit for determining the duration of the electrochemical processes (BODEP) 5, implemented according to the scheme shown in Fig.6, works as follows.

The signals coming from the active electrode E 10 are converted to digital form by means of an analog-to-code converter 11, from where they are simultaneously sent to the memory register 12 for storing the initial or previous value and to the scaling device 13, which sets the desired threshold for the change, after which they are compared in the comparator 14 among themselves. The comparison result is input to the microcomputer 2.

The control unit of the parameters of the shape of the electric signal (BUPFES) 7, implemented according to the scheme shown in Fig.7, operates as follows.

The control signals coming from the microcomputer 2 are converted by the decoder (DS) 15 into relay control signals that allow connecting between the first and second outputs, i.e. actually parallel to the inductor (KI) 8 (figure 1) and two electrodes, one of the combinations of N RC circuits from "all disconnected" to "all connected." Changing the parameters of the resulting RC equivalent, connected in parallel with the inductor (KI) 8, allows you to change the shape of the electrical signal.

The control unit of the parameters of the shape of the electric signal (BUPFES) 7, implemented according to the circuit shown in Fig.8, operates as follows.

The control signal from the microcomputer 2 (Fig. 1) to the input of the optocoupler 28 changes the resistance of the output resistor of the optocoupler 28 and thereby the time constant of the RC circuit, consisting of the output resistor of the optocoupler 28 and capacitor C 29. The conclusions of the RC circuit, as well in the previous case, connected in parallel to the inductor (KI) 8 and two electrodes (figure 1).

An advantage of the first option is greater flexibility in choosing the range of variation of the RC circuit.

The advantage of the second option is greater simplicity and compactness of implementation, but it is not possible to change component C in the RC circuit.

The pump forming unit (BFN) 3, implemented according to the circuit shown in Fig.9, operates as follows.

The control signals from the microcomputer 2 open the transistor 30 for some time t. The chain "power source - input 2 - transistor 30 - diode 31 - output - inductor (KI) 8" increases the current, the maximum value of which is determined by the well-known formula

I _t = U · t / L,

where t is the duration of the pulse opening the transistor 30,

U is the voltage of the power source,

L is the inductance of the inductor (KI) 8,

I _t is the magnitude of the current to the end of the pulse of duration t.

At the end of time t, the transistor 30 closes, and in the circuit formed by the inductor (CI) 8, its own stray capacitance, the impedance of the skin or mucous surfaces (if the electrodes are connected to the patient), as well as the RC circuits of the electrical signal shape control unit (BUPFES) 7, free oscillations occur, the parameters of which depend on all the indicated components of the circuit. The diode 31 prevents the open-circuit voltage transistor 30 from entering the collector junction.

The claimed method is as follows.

Electrodes E9 and E10 are applied to the skin or mucous surface of a person or animal in an area located near the exposure zone.

Set the amplitude of the electric effect using the block setting the parameters of the control pulses (BZPUI) 1 according to the individual sensations of the subject:

subthreshold, comfortable, subcomfortable, depending on the technique, while the set parameters of the electric effect (the number of pulses in a packet, the pulse repetition rate, etc.) are displayed by the display unit 6.

Electrodes E9 and E10 are installed directly on the area of influence determined by known methods, for example, on Zakharyin-Gedda zones or projections of organs.

When the electrodes come into contact with the skin surface (mucous membrane), which, in the general case, is a complex complex of aqueous solutions, a number of processes occur at the metal-solution interface.

This is, first of all, the formation of a potential difference (double electric layer), called the electrode potential [Methods of clinical neurophysiology. Ed. V.B. Grechina. L., Science, 1977, pp. 7-8]. An equivalent circuit of a double electric layer is the parallel connection of the capacitance (the so-called capacitance of the double layer) and resistance, which change in time during the formation of the specified layer. In Fig. 3, the formation time of the double layer capacitance is indicated by t1.

Passing an electric signal from an inductor through an electrode leads to a change in blood microcirculation and a number of other processes, while the active skin resistance changes (usually decreases).

A change in the capacity of the double layer and active skin resistance reflects changes in metabolic processes that occur on the skin (mucous surfaces) as a result of the interaction of the electrodes and the electrical signal with the skin (mucous surfaces).

This, in turn, makes it possible to control the duration of electric exposure and the change in the shape of the electric signal depending on the course of electrochemical processes, and the duration of exposure is controlled, for example, until the stabilization of electrochemical processes, expressed, for example, in the termination of significant changes in the capacity of the double layer and / or active resistance, and the shape of the electrical signal is controlled, for example, parametrically, by changing the capacitance of the double layer and / or active o resistance included in the shock excitation circuit.

After time t1 (Fig. 3), the change in capacitance and active resistance is determined mainly by electrochemical reactions under the electrodes associated with local metabolism. [Methods of clinical neurophysiology. Ed. V.B. Grechina. L., Science. 1977, p. 72].

It is known that peptide hormones play an important role in the mechanisms of regulation of the organism [V.A. Tkachuk. Physiology of the endocrine system. UFN - 1994 - T25, No. 2 - p. 47-54], which determine the physiological state and participate in the processes of sanogenesis. Thin C fibers, which have a high excitation threshold, are responsible for the formation of these substances. A large amplitude of exposure increases the likelihood of the release of peptide hormones, and, consequently, the activation of metabolic processes [Y.Z. Greenberg. Percutaneous electrical stimulation: an approach from the perspective of a functional continuum of regulatory peptides. J. "Reflexotherapy", 2002, No. 1, p.29-32].

In the proposed method, at a short moment of touch, the amplitude of the signal on the skin can reach 500 V (figure 2). In this case, the safety of exposure is ensured by limiting the energy stored in the inductor (the duration of a single exposure is, as a rule, of the order of tens of microseconds).

The course of electrochemical processes can be manifested, for example, mainly by the formation of a double layer capacity.

An example of a signal change associated with the formation of a double layer capacitance is shown in FIG. As can be seen, the waveform on all graphs differs only in the period of damped oscillations, which is associated with an increase in the equivalent capacitance of the shock excitation circuit. After a certain time, the change in the shape of the pulses practically stops (graphs 4c and 4d). Accordingly, for the duration of electrochemical processes, one can take the time from the moment the electrodes were installed until the moment the change in the shape of the pulses ceases.

With a joint change in the double layer capacitance and active resistance, both the extension of the period of the damped pulses and the simultaneous increase in the attenuation occur simultaneously (Fig. 5).

As before, the duration of electrochemical processes can be determined at the time of termination of these changes.

Using simulation (analytically, on a computer, etc.), it is possible to separate the change in double layer capacitance and active resistance, and in this case, it is possible to control the exposure duration either only by changing the double layer capacitance or only by changing the active resistance, or by their combination .

After time t1 (Fig. 3), the change in capacitance and active resistance is determined mainly by electrochemical reactions under the electrodes associated with local metabolism, which also manifests itself in a change in capacitance and active resistance.

As in previous cases, by modeling it is possible to separate the effect of capacitance and active skin resistance and to control the duration of electrical exposure to a living organism according to the duration of the course of electrochemical reactions that occur on the skin and / or mucous surfaces as a result of the interaction of the electrodes and the electrical signal with the skin and / or mucous surfaces.

The processes described above (changing the double layer capacitance and active resistance, electrochemical reactions), in combination with technical means (parameters of the inductor, area and material of the electrodes) allow you to control the shape of single pulses.

Here, the parametric control of the shock excitation circuit takes place. We emphasize that this process occurs continuously (at each pulse), depending on the double layer capacitance, active resistance, or on their joint change, without further intervention in the process of controlling electrical effects.

The second level of waveform control is provided by connecting damping (RC) circuits to the coil. In this case, both the double layer capacitance and the active resistance, as well as the parameters of the damping circuits, influence the waveform simultaneously.

For example, with the help of damping chains it is possible to reduce the amplitude of free oscillations of the shock excitation circuit and thus control the flow of metabolic processes.

The third level of waveform control consists in changing the parameters of the bursts of pulses depending on the duration of the formation of the double layer capacitance, changes in the active resistance and (or) on their joint change.

For example, with a slow change in the capacity of the double layer, one can increase the number of pulses in a packet or the frequency of their repetition in order to increase the rate of flow of metabolic processes.

Thus, the claimed method and device of electrical action on a living organism allows to optimize electrical action and its duration, using fairly simple to use devices and methods when performing electrical action on the skin and mucous surfaces.

The claimed method and device of electric action on a living organism can be widely used in medicine, for the treatment, rehabilitation and prevention of various diseases, reduce pain, reduce inflammation and edema.

Claims (8)

1. A method of electrical action on a living organism, including installing electrodes on the skin and / or on mucous surfaces and passing an electrical signal through them, controlling the signal depending on the course of electrochemical processes that occur on the skin and / or mucous surfaces as a result of the interaction of the electrodes and an electric signal with skin integuments and / or mucous surfaces, characterized in that the electric signal is passed through the electrodes from the inductor, and for a long time Tew electrostimulation and / or electrical change in the waveform is controlled depending on the duration of the formation or change in capacitance of the double layer, or formation or duration of the double layer capacitance change and change of the active skin resistance. 2. An electric impact device on the body containing the active and passive electrodes, an inductor connected to the passive electrode by the first output, a power source and serially connected control pulse parameter setting unit, a microcomputer and an indication unit, characterized in that it includes a duration determination unit electrochemical processes, an electric signal waveform control unit, a pump forming unit, the second input of the microcomputer being connected to the output of the detection unit dividing the duration of electrochemical processes, the input of which is connected to the active electrode and the second output of the inductor, the input of which is connected to the output of the pump forming unit, the input of which is connected to the first output of the microcomputer, the output of the power source is connected to the unit for setting parameters of control pulses, to the second inputs of the blocks determine the duration of the electrochemical processes, the formation of pumping, control the parameters of the shape of the electric signal and indication and to the third input m the computer, and the control unit of the shape of the electric signal is connected to the third output of the microcomputer and electrodes. 3. The device according to claim 2, characterized in that the control unit for the shape of the electric signal contains a demultiplexer and an RC circuit. 4. The device according to claim 2, characterized in that the control unit of the electrical waveform parameters contains an optocoupler and a capacitor. 5. The device according to claim 2, characterized in that the unit for determining the duration of the electrochemical processes contains an analog-code converter, a comparator, a memory register and a scaling device. 6. The device according to claim 2, characterized in that the pump forming unit comprises a transistor and a diode. 7. The device according to claim 2, characterized in that the inductance coil is made in the form of an autotransformer. 8. The device according to claim 2, characterized in that the inductance coil is made in the form of a transformer.

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