RU173034U1 - MULTI-FREQUENCY ELECTRIC STIMULATOR - Google Patents

Abstract

Multifrequency electrostimulator refers to medical equipment and can be used in medical institutions and domestic conditions for therapeutic purposes as an anesthetic and stimulant for the rehabilitation treatment of tissues, organs and systems, especially nerves and muscles that have lost their normal function as a result of illness or injury. from the pulse forming unit (2), to which a mat (3) made of a dielectric material is connected with a cable (4), with electrodes (6) connected osredstvom solder (7) to the wires (8) and connected between a wire (9) combined in cables (4). The electrodes are combined in rows (channels), alternating, a wire with a flowing pulsed current (channel) and a common wire (earth). The number of channels and the shape of the rug with electrodes is determined by the place of application of the device on the human body. The supply voltage is carried out from an external source (1) or installed inside the battery (5) of the “Krona” type. Current pulses affecting the human body are formed in the microcontroller unit for generating pulses (2). The ratio of the generated frequencies in the channels 1: 2: 3: 4 ... After a certain number of cycles that change in time, the frequency is shifted along the channels. The operating mode is set by the switch (11). The intensity of the exposure current is regulated by the regulator (12) and is determined by the brightness of the glow of the indicator (13).

Description

Multifrequency electrical stimulator refers to medical equipment and can be used in medical institutions and domestic conditions for therapeutic purposes as an anesthetic and stimulant for the rehabilitation of tissues, organs and systems, especially nerves and muscles that have lost their normal function as a result of illness or injury.

Known analog applicator Lyapko [see RF patent 2195917 04/26/2012]. A rubber mat with needles made in the form of a rod with a point at one end and coated with the formation of a zone near the point made up of at least two materials with different electrochemical potentials. This embodiment of the needles provides both mechanical and electrical effects on the corresponding area of the user's body.

The disadvantage of this device is the static effect of electrical potentials arising between the needles.

Known patent for the invention [see patent RU 2106885 03/20/1998] multi-channel electrical stimulator "Altair". The small stimulator MIORITM 040 (Altair) is designed for multi-channel electrical exposure to low-frequency pulse currents, modulated in amplitude and frequency. The increased number of channels allows you to simultaneously affect a number of conjugated structures, which expands the scope and increases the effectiveness of treatment.

The disadvantage of this device is the difficulty in domestic use, the wide area of the electrodes does not allow to accurately affect the nerve endings.

The device for low-frequency physiotherapy Amplipulse-8, in which modulated sinusoidal currents are used, was chosen as the closest analogue. According to the instructions for the device - The microcontroller of the device generates a sinusoidal voltage with a frequency of 5 kHz, modulates it with a sinusoidal voltage with a frequency from 10 Hz to 150 Hz. Sets the modulation depth from 0% to 150%, provides a smooth rise and fall of currents in the channels when operating in the ring mode.

The disadvantages of this prototype device are: limited by 4 electrodes, a large selection of programs, which complicates the use of the device in domestic conditions and leads to a rise in price, the electrodes are an electrically conductive solid surface along which the same pulse-modulated current flows at all points of contact with the human body .

The objective of the proposed utility model is to combine the principles of operation of the Lyapko applicator and the Amplipuls-8 device. To do this, electrodes mounted in a silicone (rubber) mat, made in the form of blunt needles, to which a pulsed current is supplied, are connected to the microcontroller unit for generating pulses through a connecting cable.

The therapeutic result is obtained due to the effect on the nerve endings through conductive needles with a pulse current of different frequencies, which causes a physiological reaction of the human body in the form of muscle contraction under the electrodes. A large number of electrodes and a frequent cyclic change in the frequency of the pulses will prevent the body from getting used to the electric effect. In order to reduce the cost and simplify operation, the device has an automatic cycle of changing the frequency of pulses between the electrodes, a frequency change button and a current regulator are used for control.

The problem is solved due to the fact that, as in the prototype of the Amplipuls-8 device, it contains a pulse forming unit and several electrodes. But the following differences are provided:

a silicone (rubber) mat is used as a source of impulse action with a blunt needle electrode located on it, made of conductive material, to which current is supplied through the cable from the pulse-setting device.

The needle electrodes are interconnected in rows so that the pulse current flowing through the row of electrodes alternates with a row of electrodes integrated into a common wire.

The number of electrodes made in the form of connected in a chain, conductive blunt needles, is determined by the zone of influence on the human body (articular departments have fewer electrodes, lumbar and cervical, more electrodes).

The pulse generation program transmits pulses with a multiple frequency to each subsequent electrode row (channel) according to the following sequence 1: 2: 3: 4, etc. and periodically changing them among themselves in a circle.

In addition, a constant change in the frequency of pulses specified by the control program does not require modulation, since changing pulses on a large number of electrodes does not addictive to the part of the body on which the action is performed.

As a device control, there is only a button for changing the frequency mode and a regulator of the amperage of the current, which greatly facilitates the work with the device, especially in domestic conditions.

Simplification of the design of the pulse forming unit leads to a cheaper design. Automatic operation simplifies its use in domestic conditions. The presence of a large number of electrodes allows you to enhance the therapeutic effect in a problem place on the human body.

The inventive utility model has a set of essential features unknown from the prior art for objects of similar purpose, which allows us to conclude that it meets the criterion of "novelty."

The utility model is illustrated by drawings:

FIG. 1 block diagram of the device,

FIG. 2 side view of the rug with electrodes,

FIG. 3 top view of the mat with electrodes,

FIG. 4 device mat with electrodes,

FIG. 5 circuit diagram of the mat with electrodes,

FIG. 6 is a functional diagram of a pulse forming unit.

The inventive multi-frequency electrical stimulator of FIG. 1 consists of a pulse forming unit 2, to which a rug with electrodes 3 is connected by cable 4. The supply voltage is carried out from an external source 1 or installed in a battery 5 of the “Krona” type.

The body of the mat 10 with the electrodes of FIG. 2 and FIG. 3 is made of a dielectric material (silicone, rubber) that is safe for the human body and has the ability to undergo heat treatment. Conductive electrodes 6 are installed in the mat, interconnected by conductive wires by soldering 7 with wires 8, combined into a cable 4. The electrical circuit for connecting the electrodes is shown in FIG. 5. Between each wire (channel) 8 with a pulsed current flowing through it, there is a common wire (earth) 9. The number of channels and the shape of the rug with electrodes is determined by the place of application of the device on the human body.

Current pulses affecting the human body are formed in the microcontroller unit for generating pulses 2 Fig. 6. The ratio of the generated frequencies in the channels 1: 2: 3: 4 ... Or 5000 Hz: 2500 Hz: 1667 Hz: 1250 Hz, etc. In the low-frequency mode set by the switch 11, the frequencies are distributed over the channels 100 Hz: 50 Hz: 33 Hz: 25 Hz, etc. After a certain number of cycles, which also change in time, the frequency of the pulses changes along the channels and further in the circle. The strength of the current exposure is set by the controller 12 and is determined by the brightness of the glow of the indicator 13.

Claims (4)

1. A multi-frequency electrical stimulator consists of a microcontroller pulse shaping unit, to which electrodes made of a conductive material, installed in a dielectric mat and connected to each other according to the circuit are connected with a multi-wire cable so that the rows of electrodes through which pulses of different frequencies are a multiple of the following sequence 1 : 2: 3: 4, etc. and changing in a circular cycle in automatic mode, alternate with rows of electrodes combined into one common wire. 2. An electrical stimulator according to claim 1, characterized in that the electrodes are made in the form of blunt needles installed in a dielectric mat and interconnected by soldering with wires, the number of electrodes is determined by the area of influence on the human body. 3. The pacemaker according to claim 1, characterized in that the microcontroller unit for generating pulses is configured to provide a ratio of the generated frequencies in the rows of electrodes 1: 2: 3: 4, etc. and periodically changing the incoming pulse current to the electrodes in a circular cycle in automatic mode. 4. The electrical stimulator according to claim 1, characterized by the presence of only 2 control devices: a switch for changing the frequency of exposure and a current regulator.

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