RU2346710C1 - Electrode assembly - Google Patents

Abstract

FIELD: medical equipment.

SUBSTANCE: electrode stimulating assembly contains dielectric body with electrode holes and removable electrodes, as well as additionally printed circuit board, wherein electrode core is soldered for each removable electrode and provided with threaded connection to be attached to electrode support designed as a cell with a magnet shrunk-in into the axial bore from the opposite side of connection thread. Removable electrode represents spherical calotte with magnet shrunk-in into blind axial bore from flat surface. Printed-circuit board with soldered electrode core and removable electrode are mounted by different sides of dielectric body, while shrunk-in electrode support and removable electrode adjoin unlike poles.

EFFECT: improved reliability and enhancement.

6 cl, 1 dwg

Description

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

From the description of the author's certificate of the USSR No. 1024061, IPC 3 АВВ 5/05, publ. 1983, an electrode device is known comprising a housing, the walls of which have a different degree of elasticity, and a contact element made in the form of a disk membrane with radial slots, the peripheral portion of the contact element being fixed in the housing. Such an electrode device is not suitable for treatment using an electro-stimulating effect, since it does not provide the necessary constancy of the area of contact contact with the skin surface.

In the USSR author's certificate No. 730346, IPC 2 А61В 5/05, publ. 1976, a sensor for measuring bioelectric quantities is described, which is essentially an electrode device and contains two coaxial electrodes located in a housing made of insulating material, the housing is equipped with a support platform with a diameter of 25 ... 35 mm, in the center of which end surfaces of the electrodes are located, while the outer diameter of the outer electrode is 2 ... 6 mm. Such an electrode device is ineffective when used for electrical stimulation due to the instability of the area of contact with the skin. In addition, this design of the electrode device does not imply the possibility of replacing the electrodes.

Electrode stimulation device used in the COSMODIC electronic neuroadaptive stimulator (see description to the patent of the Russian Federation No. 2244574, IPC 7 A61N 1/04, A61N 1/36, publ. 2005, Fig. 8, claim 10 of the claims) comprises a housing of electrical insulating material and external passive and internal active electrodes coaxially placed on the end and / or side surfaces of the housing, connected through the lead wires to the outputs of the electro-adaptive stimulator. Such an electrode device does not involve replacing the electrodes.

The electrode device for electrical stimulation of the neuromuscular apparatus, protected by the patent of the Russian Federation No. 2124344, IPC 6 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 not suitable for use with electro-adaptive stimulators due to the lack of fixing the distance between the passive and active electrodes.

In the published application for the grant of a patent of the Russian Federation No. 96124755/14, IPC 6 АВВ 5/00, publ. 1999, an electroencephalographic electrode is described comprising contact elements made in the form of electrically conductive pins with rounded contact surfaces and fixed to an electrically conductive base provided with a lead-out conductor. The contact elements are made elastic, and the electrically conductive base is made in the form of an elastic membrane, while the diameter of the contact elements is 0.1-0.2 mm, and the distance between their axes is 1.0-1.5 mm. The implementation of the contact elements in the form of electrically conductive spikes provides reliable contact with the skin even in the presence of hair. The described electrode is structurally complex and therefore has limited use. In addition, in such an electrode device, it is impossible to change the number of electrodes and their relative position.

Patent of the Russian Federation No. 2071271, IPC 6 АВВ 5/04, publ. 1997, a fast-mounted electrode, Blatova IV, is protected, containing a matrix in a dielectric casing and characterized in that the electrode further comprises at least one hair extender formed by the outer walls of two shoulders located relative to each other at an acute or right angle. The matrix is located inside the corner formed by the shoulders. The walls of the flanges, facing the inside of the corner, have a lower height compared to the outer walls. The disadvantage of such an electrode is structural complexity.

The electrode device for puncture electrotherapy, protected by the patent of the Russian Federation No. 2202381, IPC 7 A61N 1/18, A61N 39/00, publ. 2003, contains indifferent and active electrodes. A current-carrying wire with a plug to which an indifferent lead electrode is connected is soldered to the screen of the flexible cable. The cable is branched into 2-5 electric wires with plugs to which 2-5 round electrodes are connected. The indifferent electrode is made of lead, the active electrodes are made of steel. The disadvantages of the prototype are - the impossibility of electrotherapeutic effects on extended pathological zones, the impossibility of selective effects on the zones under one electrode with the simultaneous exclusion of effects on the zones under other electrodes, the lack of fixation of a given distance between active and indifferent electrodes, the excessive locality of the electrotherapeutic effect.

From the description of the patent of the Russian Federation No. 2262957, IPC 7 A61N 1/04, 1/36, publ. 2005, it is known an electrode device containing a connector for connecting an electro-adaptive stimulator, current-conducting conductors and electrodes, an elastic substrate with contact slots fixed 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 their connection are located on different sides of the elastic substrate, with each electrode connected to the corresponding contact socket push-button connection (see paragraphs 11 ... 15 of the claims, figure 10, 11). This electrode device is adopted as a prototype. Compared to other electrode devices, it differs in that it allows you to change the configuration of the zone of electrical stimulating effects. The disadvantage is the operational unreliability of the push-button connection of the electrode to the electrode socket.

The technical result from the use of the invention is to increase the operational reliability of the electrode device and expand the functionality of the electrode device.

The specified technical result is achieved in that the electrode device for electrical stimulation, comprising an insulating casing with holes for electrodes and removable electrodes, further comprises a printed circuit board in which an electrode rod is fixed under solder for each removable electrode, fastened with a threaded connection to the electrode holder, made in the form of a washer , in the axial hole of which, on the opposite side of the thread, a magnet is pressed in to connect to the electrode rod, and the removable electrode is made as fericheskogo segment is pressed into a flat surface in the blind axial bore magnet, wherein the printed circuit board with the soldered electrode rod and a removable electrode are placed on opposite sides of the electrically insulating body and pressed into an electrode holder and a removable electrode adjoin the magnets with opposite poles. The removable electrode is made of silver, and the magnet pressed into it is oriented outward by the south pole. The removable electrode is made of gold, and the magnet pressed into it is oriented outward by the north pole. The electrode holder on the opposite side of the thread for connection with the electrode rod has an end protrusion for fixing in an insulating casing. The holes for the electrodes in the insulating casing are placed around the circumference around the Central hole. The insulating body of the electrode device is the body of an electrical stimulator.

The invention is illustrated in the drawing, which schematically shows the design of the inventive electronic device.

In the drawing, the numbers indicate:

1 - electrical insulating casing;

2 - removable electrode;

3 - printed circuit board;

4 - contact area of the printed circuit board;

5 - solder seam;

6 - rod of the electrode;

7 - electrode holder;

8 - a magnet pressed into the electrode holder;

9 - a magnet pressed into a removable electrode;

The claimed electrode device (figure 1) contains an insulating body 1 with holes for the electrodes, removable electrodes 2, a printed circuit board 3, in the contact area 4 of which, for each removable electrode 2 by soldering 5, the rod of the electrode 6 with a thread on the other end is fixed, and the electrode holder 7, made in the form of a nut-washer with a pressed-in magnet 8. The holder of the electrode 7 is fastened with a threaded connection to the rod of the electrode 6. The removable electrode 2 is made in the form of a spherical segment into which a blind axial hole is open on a flat surface A magnet 9 is pressed in, which is adequate to magnet 8 pressed into the electrode holder 7. As an insulating case 1 of the inventive electrode device, there may be an electrostimulator case for which the electrode device is intended. The printed circuit board 3 can be mounted on the insulating casing 1 using fasteners (not shown). The holder of the electrode 7 for fixing in the hole in the insulating body for the electrode may have an end protrusion, and the removable electrode 2 is a recess on a flat surface under the end of the holder of the electrode 7. Magnets 8 and 9 are oriented in the mounting holes so that when installing the removable electrode 2 on the end of the electrode holder 7, they were in contact with opposite poles.

Compared with the prototype, the claimed electrode device is characterized by higher operational reliability, since the adhesion force of magnets 8, 9 is constant without time limitation, and the reliability of the electrical contact of the soldered and threaded connection is higher than the push-button. In addition, the claimed electrode device has wider functionality, since the fastening of the removable electrode 2 with the electrode holder 7 with magnets allows for additional magnetotherapy. Under the influence of a magnet, blood is polarized, ions repel from the magnet and accelerate their movement. Iron, under the influence of a magnet, also moves much faster, and polarity is transmitted to cell membranes, the throughput of which increases, especially for potassium and sodium. When using silver electrodes in which the pressed-in magnets are oriented by the north pole to the contact surface of the removable electrode with the body (the south pole outside the blind axial hole), the healing effect of electrical stimulation is increased due to the fact that the magnetic field helps the body in the fight against diseases caused by viruses and bacteria , fungi, and also in recovery from injuries. When using gold removable electrodes, in which the pressed-in magnets are oriented by the south pole to the contact surface of the removable electrode with the body (north pole to the outside of the blind axial hole), the efficiency of electrical stimulation is increased due to the fact that the supply of body cells with oxygen and nutrients for cell regeneration is improved and the pH is normalized cells and tissues.

Claims (6)

1. An electrode device for electrical stimulation, comprising an insulating body with holes for electrodes and removable electrodes, characterized in that it further comprises a printed circuit board in which the electrode rod is fixed by soldering and screwed to the electrode holder, made in the form of a washer nut, in the axial hole of which on the opposite side of the thread for connection with the electrode rod is pressed into a magnet, and a removable electrode is made in the form of a spherical segment with a pressed-in plane th surface in the blind axial bore magnet, wherein the printed circuit board with the soldered electrode rod and a removable electrode are placed on opposite sides of the electrically insulating body and pressed into an electrode holder and an electrode in the detachable magnets adjoin opposite poles. 2. The electrode device according to claim 1, characterized in that the removable electrode is made of silver, and the magnet pressed into the electrode is oriented outward by the south pole. 3. The electrode device according to claim 1, characterized in that the removable electrode is made of gold, and the magnet pressed into the electrode is oriented outward by the north pole. 4. The electrode device according to claim 1, characterized in that the electrode holder on the opposite side of the thread for connection with the electrode rod has an end protrusion for fixing in an insulating body. 5. The electrode device according to claim 1, characterized in that the holes for the electrodes in the insulating casing are arranged around the circumference around the Central hole. 6. The electrode device according to one of claims 1 to 5, characterized in that the insulating body of the electrode device is a body of an electrical stimulator.