RU206497U1 - MULTI-ELECTRODE DEVICE FOR LOCAL COMBINED EXPOSURE - Google Patents

Abstract

The utility model relates to medical equipment, namely, electrical stimulation devices, and can be used in SCENAR-therapy and other methods in which electrodes built into the device or external electrodes are used for therapeutic, rehabilitation, prophylactic purposes, as well as for experimental research. The electrode device contains three or more dry electrodes built into the body of the electrostimulator or in the form of an external structure made of electrically insulating material that allows movement and rearrangement during therapy, when using two or more sources of influencing stimuli, and each electrode can be both active and passive ... The technical result consists in increasing the efficiency of SCENAR-therapy due to the combined effect in the local area, obtaining a more pronounced "high-frequency massage" of tissues. 4 c.p. f-ly, 7 ill.

Description

The utility model relates to medical equipment, namely, electrical stimulation devices and can be used in SCENAR-therapy and other methods in which electrodes built into the device or external electrodes are used, for therapeutic, rehabilitation, prophylactic purposes, as well as for experimental research.

By "local multi-electrode device" is meant an electrode device with more than two electrodes, approximately corresponding in area to the electrodes built into the SCENAR apparatus (10-20 cm ² ).

Combined exposure refers to the simultaneous exposure to stimuli from multiple sources.

Stable exposure means exposure to an electrode device installed throughout the session.

The term “labile effect” is understood as an effect with movement or rearrangement of the electrode device during therapy.

Various designs of electrode devices for SCENAR devices (and similar ones) are known.

So in the patent of the Russian Federation No. 2198695, published on 20.02.2003, IPC A61N 1/36 provides for the possibility of creating virtual electrodes on a plurality of electrodes in constant contact with the skin. This approach makes it possible to implement local action with equal use of electrodes as active and passive. In addition, when using several sources of stimuli (this is not provided by the considered invention, but is technically possible), the virtual electrode can provide a combined effect. Finally, although this is also not indicated in the description, metal electrodes allow them to be used in a dry state.

However, this device requires constant contact of the electrodes with the skin, which does not allow rearrangements during therapy. In addition, the design of the electrode device does not allow its movement either. As a result, it is impossible to realize a labile effect using this electrode device. This significantly reduces the effectiveness of its use for the reasons described below.

The electrode device (RF patent No. 2262957, publ. 27.10.2005, IPC A61N 1/36, A61N 1/04) contains a connector for connecting an electroneuroadaptive stimulator, current-carrying conductors, electrodes, an elastic substrate with contact sockets fixed on it for connecting electrodes. It is designed primarily to affect extended areas of innervation. Each electrode can be either active or passive.

It is united with the proposed utility model by the possibility of organizing a combined effect using arbitrarily commutated electrodes and the equality of active and passive electrodes. Metal electrodes allow dry use.

However, this electrode device is fixed in a specific area, which does not allow a labile effect. The constructive solution also significantly complicates the implementation of local impact.

The description states that "the areas under the passive electrodes are out of action", which is not true. In fact, the indication "active" and "passive" electrode in the case of bipolar stimuli with a shape close to symmetric does not make sense. For asymmetric stimuli of SCENAR devices, the designation "active" and "passive" electrode is conditional. Nevertheless, due to the asymmetry of stimuli, the effect under the conditionally “active” and conditionally “passive” electrodes is different, and in order to increase the effectiveness of the effect and reduce the polarization of tissues, the possibility of equitable use of each electrode as an “active” or “passive” is important.

Closest to the claimed device is a technical solution (RF patent No. 2244574 (first version), publ. 27.07.2004, IPC A61N 1/36, A61N 1/04). The electrode device contains a housing made of an electrically insulating material and placed coaxially on the end and / or lateral surface of the housing external passive and several (two or more) internal active electrodes, isolated from each other and having separate connectors for connection to an electrostimulator.

It is united with the proposed utility model by the possibility of local action, both stable and labile, as well as metal electrodes, which allow them to be used in a dry state.

However, this device uses switching of active electrodes relative to a single passive electrode, and its design differs significantly from active electrodes. All this does not allow the application of such a solution for local combined action with arbitrary use of electrodes as active or passive.

The problem to be solved by the proposed utility model is to provide a local combined effect with dry electrodes with arbitrary use of electrodes as active and passive ones and the possibility of using both stable and labile techniques in the course of therapy for influencing extended zones.

The technical result to be achieved by the utility model is a more pronounced "high-frequency massage" of tissues in the local zone with the possibility of affecting extended zones by sequentially installing or moving the electrode device over the skin.

The specified technical result is achieved by the fact that three or more dry electrodes with current leads, isolated from each other and having separate connectors for connecting to an electrostimulator for supplying stimuli from several sources, are fixed on the housing made of an electrically insulating material, and each electrode can be either active or passive.

The separate connection to the electrostimulator not only ensures the supply of stimuli from several sources, but also allows the electrostimulator to arbitrarily switch the electrodes as active / passive.

The electrodes can be made in the form of parallel conductive elements.

Alternatively, the electrodes can be made in the form of rectangular, round and elliptical elements.

In yet another embodiment, one or more center electrodes can be surrounded by outer electrodes in the form of a rectangle without a fourth side, an open circle, or an ellipse.

In addition, when the number of electrodes is more than three, some of them can be combined into one (act as one electrode).

The utility model is illustrated by drawings, which show:

in fig. 1 is a schematic example of a multi-electrode device in which the electrodes are formed as three parallel conductive elements;

in fig. 2 is a schematic example of a multi-electrode device in which the electrodes are formed as four parallel conductive elements;

in fig. 3 is a schematic example of a multi-electrode device in which the electrodes are made in the form of three coaxial (coaxial) rectangular elements;

in fig. 4 is a schematic example of a multi-electrode device in which two central rectangular electrodes are surrounded by an outer rectangular electrode;

in fig. 5 is a schematic example of a multi-electrode device in which two central rectangular electrodes are surrounded by two outer rectangular electrodes without a fourth side;

in fig. 6 is a schematic example of another embodiment of a multi-electrode device in which two central rectangular electrodes are surrounded by two outer rectangular electrodes without a fourth side;

in fig. 7 is a schematic example of a multi-electrode device, with a central rectangular electrode surrounded by four electrodes in the form of isolated sides of a rectangle.

SCENAR devices are widely used by doctors of various specialties. The main features of these devices are the formation of electrical stimuli using an inductive energy storage device, the use of dry electrodes and the movement and (or) rearrangement of electrodes during therapy, which provides a high amplitude of acting stimuli while maintaining the safety and comfort of exposure. Sequential placement or movement of electrodes on the skin in combination with dry electrodes also significantly increases the variability of stimuli. Immediately after installation on the skin, the amplitude of stimuli and vibration are maximal, and also at the initial stage of formation of the capacity of the double layer (see patent RU 2633632, publ. 09/07/2017, bulletin No. 25), the variability of stimuli is also high. When the electrode device is moved, the amplitude of the stimuli is kept high, which ensures a high level of vibration. These physical effects in many respects determine the efficiency of the electrical action of SCENAR devices and the like (Ya.Z. Grinberg, "On one effect of SCENAR exposure. Izvestiya TRTU No. 6, 2004, - P. 1 00-105.", Ya.Z. Grinberg , "Once again about the features of SCENAR-impact. Izvestia TRTU No. 11,2006, - pp. 144-147").

The ability to connect two or more generators to a multi-electrode device (see patent RU 2735757, publ. 06.11.2020, bul. No. 31) significantly expands the range of influencing stimuli, including through the interaction of stimuli with different parameters from different sources with each other , which provides a combined effect. It allows you to get a more pronounced "high-frequency massage" of subelectrode tissues, to carry out an enhanced effect on the interstitial (intercellular) fluid, to stimulate the transport of this fluid and its components (products of cellular metabolism, neurotransmitters, neuromodulators, etc.). There is an acceleration of the resorption of edema, elimination of stagnation, a significant improvement in tissue trophism, lymphatic drainage, restoration of the elasticity of individual fibers and their layers. The possibility of using each of the electrodes as active or passive expands the indicated possibilities.

Even the simplest design of the electrodes in the form of three parallel conductive elements allows different connections of the electrodes to the two-channel electrostimulator.

FIG. 1 shows a variant of connecting such a multi-electrode device, in which the middle electrode is common to both channels of the electrostimulator, and the outputs of the two-channel electrostimulator are connected according to. FIG. 1 and subsequent symbols "-" and "+" indicate the beginnings (conventionally "passive" output and electrode) and ends (conventionally "active" output and electrode), respectively, of the output coils of the electrostimulator).

One of the external electrodes can also be common, and the outputs of the two-channel electrostimulator can be connected oppositely.

FIG. 2 shows a variant of connecting a tetrapolar electrode device, in which the first adjacent pair of electrodes is connected to the first output of the two-channel electrostimulator, and the second to the second. As in the previous example, different connections of the electrostimulator outputs to the electrodes are possible.

The electrodes can be made in the form of rectangular, round or elliptical elements. FIG. 3 and FIG. 4 shows such multi-electrode devices with three rectangular electrodes: FIG. 3 - three coaxial, and in Fig. 4 - two central and one covering them. Due to the practical equality of the areas of the electrodes with each other, any of them can be both active and passive. The same applies to the choice of a common electrode connected to the first and second outputs of the two-channel stimulator - it can be any of the three.

One or more center electrodes can be surrounded by external electrodes in the form of a rectangle without a fourth side, an open circle or an ellipse. FIG. 5 and FIG. 6 shows variants of such a multi-electrode device.

If the number of electrodes is more than three, some of them can be combined. For example, when using the electrode device shown in FIG. 7, the central electrode can be common to both channels of the electrostimulator, and the external electrodes are connected in two groups in any order and connected to the second outputs of the electrostimulator channels.

The proposed options for a multielectrode device for local combined exposure allow for exposure in a local area to stimuli from several sources, and exposure to extended areas by sequential installation or movement. The use of a multielectrode device increases the efficiency of SCENAR-therapy, allows to obtain a more pronounced "high-frequency massage" of tissues, and significantly expands the functional capabilities of electric impact.

Claims (5)

1. Multielectrode device for local combined electrical impact, including labile one, including a body made of electrical insulating material, on which electrodes with current leads are fixed, isolated from each other and having separate connectors for connection to an electrostimulator, characterized in that it contains three or more dry electrodes connected to two or more sources of stimuli, and each electrode can be both active and passive. 2. The multi-electrode device according to claim 1, characterized in that the electrodes are made in the form of parallel conductive elements. 3. The multi-electrode device according to claim 1, characterized in that the electrodes are made in the form of elements of rectangular, round and elliptical shapes. 4. A multi-electrode device according to claim 1, characterized in that the central (s) electrode (s) are enclosed by external electrodes in the form of a rectangle without a fourth side, an open circle or an ellipse. 5. The multi-electrode device according to claim 1, characterized in that when the number of electrodes is more than three, some of them can be electrically combined.

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