RU2371210C1 - Electrode device and meganetic electric connector - Google Patents

Abstract

FIELD: medicine.

SUBSTANCE: inventions concern medicine and can be applied in physiotherapy for treatment of various diseases, mainly with the use of electric stimulation effect. Electrode device includes several electrodes for electric stimulation, each electrode mounted on electrode unit, the units connected in two-dimensional matrix by magnetic electric connectors. Each connector includes two annular magnets with axial magnetisation, contacting each other by opposite poles and featuring catchers and contactors touching radial surfaces of annular magnets and respective current conductors of electrode modules they connect. Annular magnets, contactors and catchers can feature metal coating with low electric impedance. Magnetic electric connector includes two annular magnets with axial magnetisation, in operation position contacting each other by opposite poles; the annular magnets are related to different connected unit constructions different; each annular magnet features a catcher passing through annular magnet hole and contactor touching radial surface of annular magnet and respective current conductor of unit construction.

EFFECT: faster assembly of electrode units in two-dimensional matrix with electrode device configuration adapted to the shape of body area selected for electric stimulation.

17 cl, 13 dwg

Description

The invention relates to medicine and can be used in physiotherapy in the treatment of various diseases, mainly using electrical stimulating effects.

From the description of the patent of the Russian Federation No. 2083236, IPC6 A61N 1/04, A61H 39/00, publ. 1970, it is known an electrode device used in medical technology complete with an electrostimulator for non-pharmacological treatment of a wide class of diencephalic disorders. It is a frame consisting of three electrically conductive elastic arcs interconnected by hinged elements, each of the arcs consists of two halves interconnected in the middle part by a dielectric element, one electrode is located on each of the halves, the ends of the electrically conductive elastic arcs made in the form of electrical contacts.

This electrode device is designed to relieve pain in diseases of the temporomandibular joint, i.e. It is highly specialized.

The electrode device for electrical stimulation of the neuromuscular apparatus, protected by the patent of the Russian Federation No. 2124344, MPK6 A61H 39/00, A61B 5/05, publ. 1999, intended for restorative treatment in case of traumatic injuries in conditions of impaired innervation, contains a fixed electrode made in the form of an electrically conductive plate and a movable electrode. The movable electrode is made of two layers, with one layer made of elastic electrically conductive material, and the second layer of electrically insulating elastic material and equipped with fasteners to the palm of the operator. By attaching the electrode device to the operator’s hand, palpation control of the effectiveness of electrical stimulation is provided. The disadvantage of such an electrode device is that it is unsuitable for use with electro-adaptive stimulators due to the lack of fixing the distance between the passive and active electrodes.

Known electrode device protected by paragraph 13 of the claims according to the patent of the Russian Federation No. 2262957, IPC7 A61B 1/36, 1/04, publ. 2005. This electrode device contains a connector for connecting an electro-adaptive stimulator, current-conducting conductors and electrodes, as well as an elastic substrate with contact slots attached to it for connecting electrodes, each contact of a connector for connecting an electro-adaptive stimulator, a current-conducting conductor is connected to a corresponding contact socket, and electrodes and contact slots for connecting them are located on the reverse sides of the elastic substrate. The use of such an electrode device requires a connector on the electro-neuroadaptive stimulator with the number of contacts equal to the number of electrodes, which limits the possibility of miniaturization of the electro-neuroadaptive stimulator and adaptation of the electrode device to the configuration of the body portion selected for electro-stimulating effect.

From the description of the patent of the Russian Federation for utility model No. 68903, IPC A61N 1/36 (2006.01), publ. 2007, an electrode device is known that contains several electrodes for electrical stimulation, each electrode is placed on an electrode module containing a microcontroller, a key stage with a two-section inductor, the input of which is connected to the output of the microcontroller, and two electronic keys, the control inputs of which are connected to the outputs microcontroller, the signal input of the first electronic key is connected to the output of the key stage with a two-section inductor and through a damping element with the signal output of the microcontroller, the signal input of the second electronic key is connected to the input of the electrode module "housing", the outputs of the electrode keys are combined and connected to the electrode located on the electrode module, while the electrode modules are combined in a two-coordinate matrix and adjacent modules are connected to each other by a detachable connection, including a two-wire interface for transmitting commands and information data, an address relay relay bus and two power buses. This device is adopted as a prototype. The disadvantage of the described electrode device is that with a rigid detachable connection, it is impossible to adapt the electrode device to the curved surface of the treated body area (areas of the shoulder, knee, elbow joints, etc.), with cable connection, assembly of the electrode modules into the matrix is significantly complicated.

The technical result achieved by using the inventive electrode device is to reduce the assembly time of the electrode modules in a two-coordinate matrix with the adaptation of the configuration of the electrode device to the configuration of the body portion selected for electrical stimulation.

The specified technical result is achieved in that in an electrode device containing several electrodes for electrical stimulation, each of which is located on the electrode module, and electrode modules are connected in a two-coordinate matrix, electrode modules are connected using magnetic electrical connectors, each of which contains two ring magnets with axial magnetization in contact with opposite poles and having movement limiters and contactors in contact with radial surfaces ring magnets and contacting with the corresponding current-conducting conductors of the connected electrode modules. Ring magnets, contactors and travel limiters can be coated with low electrical resistance. The movement limiter and contactor can be made in the form of a U-shaped electrically conductive clamp, the transverse part of which passes through the axial hole of the ring magnet, and the longitudinal parts are connected to the current-carrying conductor. The movement limiter and contactor can be made in the form of a L-shaped electrically conductive clamp, the transverse part of which passes through the axial hole of the ring magnet, and the longitudinal part is connected to the current-carrying conductor. The contactor is made in the form of a metal plate with a hole, and the travel limiter is in the form of an insulating rod passing through the holes of all ring magnets and contactors of one electrode module. The ring magnets of the magnetic electrical connector are in contact with cylindrical surfaces. Ring magnets are in contact with radial surfaces. The electrode modules are equipped with limit stops to prevent the contact of their faces when connected to a two-coordinate matrix. Restrictive stops are placed between the ring magnets of one electrode module. At the base of the limit stops are mounted magnetic elements that hold the ring magnets inoperative.

The magnetic electrical connector used in the inventive electrode device is an independent object of protection as an invention.

From the description of the patent of the Russian Federation No. 2157031, IPC 7 H01R 13/703, H01R 13/44, H01H 36/00, publ. In 2000, an electromechanical connecting device is known, which has switching magnets and current-connecting contacts connected to a current source through a switching device, as well as a disconnecting device that is equipped with a breaking magnet and can be connected to a switching device, while the switching magnets can be transferred from the rest position to the working position contrary to holding force. The disadvantage of this device is its limited functionality, since it cannot provide a connection of current-carrying contacts placed on separated structural elements, for example, a detachable connection.

The same disadvantage also has the well-known from the description of the patent of the Russian Federation No. 2153212, IPC 7 H01R 13/703, H01R 13/44, H01H 36/00, publ. 2000, an electromechanical connecting device with a switching device connected through current-carrying contacts to a current source and having electromagnets including encoded magnetic parts with north and south poles, which are arranged in relation to each other so that respectively different polarities are located adjacent to each other, located in the case in the form of a closed standard unit and made with the ability to connect with having disconnecting electromagnets with coded magnetic parts with northern and the south poles, which are placed in relation to each other so that respectively different polarities are adjacent to each other, and a disconnecting device electrically connected to the consumer, with which the switching electromagnets are made with the possibility of being transferred from the rest position to the working position in spite of the holding force and at the same time with the ability to establish contact pairs of contact elements and thereby the electrical connection between the switching device and the breaking device, and including an electron due to their coding, the coils interact with the opening magnets located in the disconnecting device with oppositely directed coding for the implementation of magnetic fields for the switching process, while the housing of the switching device on the side facing the disconnecting device is equipped with an earthing ring; for supplying current, the switching and opening devices are provided separately from connecting magnets, pairs of contact elements, which on their end faces facing each other in the on state they are adjacent to each other, and for the contact between the contact elements and the current-carrying contacts on the working rails, a correspondingly conductive jumper is provided.

In addition, the described electromechanical connecting devices are structurally complex.

The technical result achieved by using the invention is the ability to simultaneously connect current-carrying conductors with variability in the geometry of the arrangement of the connected structures.

The specified technical result is achieved by the fact that in a magnetic electrical connector containing two ring magnets with axial magnetization in contact in opposite position, the opposite magnets belong to different connected modular structures, each ring magnet has a travel limiter passing through the hole of the ring magnet, and a contactor, in contact with the radial surface of the annular magnet and in contact with the corresponding current-carrying conductor of the modular design uktsii. Ring magnets are in contact with cylindrical surfaces. Ring magnets are in contact with radial surfaces. Ring magnets, travel limiters and contactors are metal coated with low electrical resistance. The movement limiter and contactor are made in the form of a U-shaped electrically conductive clamp, the transverse part of which passes through the hole of the ring magnet, and the longitudinal parts are connected to the current-carrying conductor. The movement limiter and contactor are made in the form of a L-shaped electrically conductive clamp, the transverse part of which passes through the hole of the ring magnet, and the longitudinal part is connected to the current-carrying conductor. The contactor is made in the form of a metal plate with a hole, and the movement limiter is in the form of an insulating rod passing through the hole of the ring magnet and the contactor.

The claimed technical solutions meet the criteria of patentability "novelty", "inventive step" and "industrial applicability", as they relate to medical equipment and there is no source of information from which the distinguishing features of the independent claims would be known.

The invention is illustrated by drawings.

Figure 1 shows a block diagram of the inventive electrode device, figure 2 schematically shows the principle of connecting the electrode modules when contacting ring magnets with cylindrical surfaces, figure 3 schematically shows the principle of connecting electrode modules when contacting ring magnets with radial surfaces and in the presence of restrictive stops on the edges of the ends of the electrode modules, figure 5 - the principle of connection of the electrode modules when contacting the ring magnets with cylindrical surfaces with about with a displacement limiter in the form of an electrical insulating rod, Fig. 5 shows a possible design of a contactor, Fig. 6 shows an electrical insulating washer, Fig. 7 schematically shows the principle of connecting electrode modules when contacting ring magnets with radial surfaces in the presence of stops between magnetic electrical connectors, in Fig. 8 is a side view of the limit stops, FIG. 9 is a side view of the ring magnets, FIGS. 10 and 11 conventionally show the connection of the electrode modules at an angle, FIG. 12 schematically shows Design of the claimed magnetic electroconnectors annular magnets in contact cylindrical surfaces, Figure 13 schematically shows the construction of a magnetic electroconnectors claimed in contact with radial surfaces of the ring magnets.

In figure 1 ... 13 in numbers and letters denote:

1 - electrode device

2 - electrode modules,

3 - connecting device, including magnetic electrical connectors,

4 - ring magnets of the electrode module 2 (00),

5 - ring magnets of the electrode module 2 (01),

6 - contactor,

7 - current-carrying conductors,

8 - current-carrying contacts,

9 - limit stops,

10 - limiter movement

11 - electrical insulating washer,

12 is a magnetic element for holding an annular magnet,

ES - electroneuroadaptive stimulator,

N is the north pole of the ring magnet,

S is the south pole of the ring magnet.

The inventive electrode device 1 (figure 1) contains several electrode modules 2, on each of which there is an electrode for electrical stimulation (not shown in figure 1). Neighboring electrode modules 2 are connected by a connecting device 3, including magnetic electrical connectors, each of which contains two ring magnets 4, 5 with axial magnetization, in working condition contacting opposite poles and having contactors 6 in contact with the corresponding current-carrying conductors 7 of the connected electrode modules 2, and limiters of movement 10 (Fig.2 ... 4, 7). Ring magnets 4, 5 can be in contact with either cylindrical surfaces (FIGS. 2, 4) or radial surfaces (FIGS. 3, 7). In the second case, to prevent the ends of the electrode modules 2 from touching and damage to the current-carrying contacts 8, the electrode modules are equipped with limit stops 9. The position of the ring magnets, for example 4, relating to one of the connected electrode modules, for example 2 (00), is fixed in the example in FIG. .2 by making the contactor 6 and the limiter 10 in the form of a L-shaped electrically conductive clamp, the transverse part of which passes through the hole of the ring magnet 4 and limits its freedom of movement voltage from the electrode module 2 (00), and the longitudinal part is in contact with the radial plane and restricts freedom of movement along the electrode module 2 (00), while adjacent ring magnets 4 located between two L-shaped clamps are oriented relative to each other by the same poles and due to the repulsive forces, they are pressed against the longitudinal parts of the L-shaped conductive clamps, which ensures reliable contact of the ring magnet 4 with the current-conducting conductor 7. In the example in Fig. 3, the position of the ring magnets is fixed s at the electrode module implemented in the form of implementation of the contactor 6 and the movement limiter 10 in the form of U-shaped conductive clamp and requires no further explanation. In the example in Fig. 4, the position of the ring magnets 4 on the electrode module 2 (00) is fixed as follows: each ring magnet 4 is installed between two contactors 6, each of which is a round or square plate (Fig. 5) with an axial hole and a tab , welding or soldering bonded to the contact pad 8 of the conductive conductor 7. Between adjacent contactors 6 is installed electrically insulating washer 11 (Fig.6). 7 shows an example with the location of the limit stops 9 between each pair of ring magnets 4, 5 and the placement at the base of the limit stops of the magnetic elements 12 to hold the ring magnets inoperative. Ring magnets 4, 5 and contactors 6 have a metal coating with low electrical resistance, for example, gold-plated. On Fig, 9 shows the connection of the electrode modules 2 (00) and 2 (01) when they are placed in one plane, figure 10, 11 - when placing the electrode modules 2 (00), 2 (01) at an angle.

The inventive electrode device 1 is characterized in that its configuration is formed from identical electrode modules 2 assembled into a two-coordinate matrix, each of which has an electrode for supplying an electro-stimulating effect, which allows, during one treatment session, to adapt the configuration of the electrode device 1 to the configuration of each of the exposure zones . Each electrode module 2 has its own number in the matrix. 1, the number of the electrode module 2 is indicated in parentheses. The electrode module 2, connected through a detachable connection 3 to the electro-adaptive stimulator ES (Fig. 1), is automatically assigned the number 00, then for each electrode module 2 connected along the “+ X” axis, the number is increased by one in the lowest digit (0.1 ; 0.2, etc.), connected along the "+ Y" axis - increases by one in the high order (1.0; 2.0, etc.), when connected along the "-X" axis, the number decreases by one in the low order (1, -1; 1, -2, etc.), when connected along the “-Y” axis, the number decreases by one in the high order (-1.0; -2.0, etc. P.).

With this design of the electrode device 1, it is desirable that, first of all, two conditions are met: 1 - the connection of adjacent modules should ensure that the electrode device covers curved surfaces (shoulder, elbow, knee joints), 2 - the connection of neighboring electrode modules when assembling the electrode modules into a matrix should be simplified to one action. With small electrode modules (for example, 30 × 30 mm), it is practically impossible to fulfill these conditions using mechanical connecting devices, such as socket-plug connectors. With a rigid connection, the first condition is not feasible; with a cable connection, assembly of the electrode modules into a matrix is substantially difficult. The claimed design of the magnetic electrical connector ensures that both conditions are met.

The principle of operation of the inventive magnetic electrical connector is illustrated in Figs. 12, 13. When the ring magnets 4 and 5 approach each other with axial magnetization by the sides with opposite poles on a cylindrical surface (Fig. 12), two magnetic forces will act on each of them: Fx4, Fx5, attracting ring magnets 4, 5 to each other, and Fy4, Fy5, repelling adjacent ring magnets 4 (5) and pressing them to contactors 6. When the ring magnets 4, 5 are touching by radial surfaces (Fig. 13), the forces Fx4, Fx5 are directed to combined axes of magnetization and press the ring magnets 4, 5 to the contactors 6, and the forces Fy4, Fy5 push the ring magnets 4, 5 to each other. Thus, in both the first and second cases, a reliable movable contact between the current-carrying wires 7 of the electrode modules 2 (00), 2 (01) is ensured. With multi-contact connection, there is no need for exact alignment of all contacts or their springing, since all technological backlashes are selected by forces Fx4, Fx5, Fy4, Fy5.

In the claimed electrode device can be used permanent ring magnets neodymium-iron-boron (NdFeB) No. 30 ... No. 50 with a diameter of 5 ... 7 mm, a thickness of 1 ... 4 mm and an axial hole of 1.5 ... 3 , 0 mm gold plated. The strength of magnets for No. 50 is Remanence Br (T) - 1.47, Br (kGs) - 14.7, Coercivity bHc (kA / m) - 1100, bHc (kOe) - 14.

Claims (17)

1. An electrode device containing several electrodes for electrical stimulation, each of which is placed on the electrode module, and the electrode modules are connected in a two-coordinate matrix, characterized in that the electrode modules are connected using magnetic electrical connectors, each of which contains two ring magnets with axial magnetization in contact with opposite poles and having movement limiters and contactors in contact with the radial surfaces of the ring magnets and contact ruyuschie with respective current-supplying electrode conductors connected modules. 2. The electrode device according to claim 1, characterized in that the ring magnets, contactors and travel limiters have a metal coating with low electrical resistance. 3. The electrode device according to claim 1, characterized in that the travel limiter and contactor are made in the form of a U-shaped electrically conductive clamp, the transverse part of which passes through the axial hole of the ring magnet, and the longitudinal parts are connected to the current-carrying contact. 4. The electrode device according to claim 1, characterized in that the travel limiter and contactor are made in the form of a L-shaped electrically conductive clamp, the transverse part of which passes through the axial hole of the ring magnet, and the longitudinal parts are connected to the current-carrying contact. 5. The electrode device according to claim 1, characterized in that the contactor is made in the form of a metal plate with an opening, a movement limiter in the form of an electrical insulating rod passing through the holes of the ring magnets and contactors of one electrode module. 6. The electrode device according to claim 1, characterized in that the ring magnets are in contact with cylindrical surfaces. 7. The electrode device according to claim 1, characterized in that the ring magnets are in contact with radial surfaces. 8. The electrode device according to claim 1, characterized in that the electrode modules are equipped with limit stops that prevent the contact of their faces when connected to a two-coordinate matrix. 9. The electrode device according to claim 1, characterized in that the limit stops are placed between the ring magnets of one electrode module. 10. The electrode device according to claim 9, characterized in that in the base of the limit stops are mounted magnetic elements that hold the ring magnets in the idle position. 11. Magnetic electrical connector containing two ring magnets with axial magnetization in contact in opposite position with opposite poles, characterized in that the ring magnets belong to different connected modular designs, each ring magnet has a travel limiter passing through the hole of the ring magnet, and a contactor in contact with the radial the surface of the ring magnet and in contact with the corresponding current-carrying conductor of a modular design. 12. The magnetic electrical connector according to claim 11, characterized in that the ring magnets are in contact with cylindrical surfaces. 13. The magnetic electrical connector according to claim 11, characterized in that the ring magnets are in contact with radial surfaces. 14. The magnetic electrical connector according to claim 11, characterized in that the ring magnets, travel limiters and contactors have a metal coating with low electrical resistance. 15. The magnetic electrical connector according to claim 11, characterized in that the travel limiter and contactor are made in the form of a U-shaped electrically conductive clamp, the transverse part of which passes through the hole of the ring magnet, and the longitudinal parts are connected to a current-conducting conductor. 16. The magnetic electrical connector according to claim 11, characterized in that the travel limiter and contactor are made in the form of a L-shaped electrically conductive clamp, the transverse part of which passes through the hole of the ring magnet, and the longitudinal part is connected to the current-carrying conductor. 17. The magnetic electrical connector according to claim 11, characterized in that the contactor is made in the form of a metal plate with an opening, a movement limiter in the form of an insulating rod passing through the opening of the ring magnet and the contactor.

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