WO2012030250A1

WO2012030250A1 - Electromagnetic therapy device

Info

Publication number: WO2012030250A1
Application number: PCT/RU2011/000388
Authority: WO
Inventors: Сабухи Князь-оглы ШАРИФОВ; Сергей Владимирович СОЛОВЬЕВ
Original assignee: ТРИФОЙ, Виктор Михайлович
Priority date: 2010-09-03
Filing date: 2011-06-03
Publication date: 2012-03-08

Abstract

The utility model relates to medical technology and, more specifically, to low-frequency electromagnetic therapy for producing a physiotherapeutic effect on the human body. The aim of the utility model is to increase the impact of the resonance effect and reduce the harmful effect of the carrier frequencies on the human body. This aim is achieved in that the electromagnetic therapy device is designed to act on biologically active points and biologically active regions using an electromagnetic field by means of an amplitude modulated signal with a lower or upper single sideband (SSB) with an intensity of 0.1 V/m² and a harmonic carrier frequency of from 20 to 30 MHz modulated by sinusoidal (harmonic) signals with a frequency of 0.1-900000 Hz and a sample rate of 0.01 Hz, said signals being generated by a generator with direct digital synthesis (DDS).

Description

DEVICE FOR ELECTROMAGNETIC THERAPY

DESCRIPTION

The device relates to medical equipment, namely to low-frequency

electromagnetic therapy for physiotherapeutic effects on the human body.

The prior art known "METHOD OF LOW FREQUENCY ELECTROMAGNETIC

THERAPIES AND DEVICE FOR ITS IMPLEMENTATION "(patent RU 2164424). The solution is chosen for the prototype. The method of electromagnetic therapy, including exposure to a pulsed electromagnetic field with a strength of 0.1 V / m ² , characterized in that it affects biological active points and biologically active zones of the human body, with a repetition rate of packets of radio pulses of 0.1 - 100 Hz and a discrete of 0 , 01 Hz, and the carrier frequency of the electromagnetic field is in the range from 10 to 15 kHz. A device for electromagnetic therapy, comprising an antenna device and a power source, characterized in that a control keyboard, a liquid crystal display, an antenna matching device, a stabilizer, the input of which is connected to a power source, are inserted into it;

a microprocessor controller with outputs connected to the control keyboard, a liquid crystal display for displaying parameters of the treatment program being performed, and to a matching device with an antenna device, the output of which is connected to the antenna, while the microprocessor controller is capable of storing up to 1000 treatment programs in memory, in each program 20 frequencies with an operating time of 1 - 4000 s, and generate pulses with a repetition rate of 0.1 - 100 Hz, modulated by a frequency of 10 - 15 kHz. A computer and a unit for interfacing with a computer connected to the controller may be introduced into the device. This type of electromagnetic field used in the prototype in radio engineering is known as a particular method of amplitude modulation and is defined as amplitude manipulation. The amplitude-manipulated signal is a packet of radio pulses.

The spectrum of the radio pulse has a linear structure and has a wide range. When using this modulation method, the body experiences an additional electromagnetic load at the carrier frequency, which in itself does not carry any information for the body and at additional frequencies that differ from the target modulation frequency. The likelihood of resonance phenomena in organs and systems, on which the essence of this method of electromagnetic therapy is based, is sharply reduced, and in some cases generally equal to zero.

The technical result is to increase the effect of resonant effects and reduce the harmful effects of carrier frequencies on the human body.

The claimed result is achieved due to the fact that the electromagnetic therapy device is based on the impact on biological active points and biologically active zones by an electromagnetic field with an amplitude-modulated signal with one side lower or upper band (SSB-Single Side Band) of 0.1 V / m ² and carrier harmonic frequency from 20 to 30 MHz, modulated

sinusoidal (harmonic) signals with a frequency of 0.1 - 900000 Hz s

discreteness - 0.01 Hz, formed by a generator with direct digital synthesis (DDS-direct digital synthesis).

A device for electromagnetic therapy, comprising an antenna device, an antenna matching device, a power supply, a control keyboard, a liquid crystal display, a step-up voltage converter, the input of which is connected to a power source, a microprocessor controller, outputs connected to a control keyboard, a liquid crystal display to display parameters of the program being executed treatment characterized in that it contains a frequency generator e direct digital synthesis (DDS), configured to issuing sinusoidal (harmonic) signal with a frequency of 0.1 - 900,000 Hz with steps of - 0.01 Hz, shaper sideband signal (SSB) amplitude-modulated on one side of the lower or upper band (SSB) an intensity of 0.1 V / m ^2, and carrier harmonic frequency from 20 to 30 MHz, which is made in the device modulated by sinusoidal (harmonic) signals generated by a generator with direct digital synthesis, and the single-band signal shaper (SSB) is connected by its input to the output of the frequency synthesizer, and the microprocessor Troller outputs connected to the frequency synthesizer for controlling the parameters of generated baseband synthesizer. At the same time, the microprocessor controller is configured to store up to 2000 therapeutic effects programs in memory. Each program includes up to 100 frequencies with a working time of 1 - 4000 s.

In FIG. 1 shows a structural diagram of an electromagnetic therapy device, where 1 is a power source, 2 is a keyboard, 3 is a microcontroller, 4 is a display, 5 is a direct digital synthesis (DDS) frequency generator configured to output sinusoidal (harmonic) signals with a frequency of 0 , 1 - 900000 Hz with a resolution of 0.01 Hz, 6 - shaper of a single-band signal (SSB) with amplitude modulation with one side lower or upper band (SSB) with a voltage of 0.1 V / m ² and a carrier harmonic frequency from 20 to 30 MHz, 7 - matching device, 8 - antenna, 9 - boosting voltage transformer.

The essence of the utility model is to use the weak

electromagnetic field cause resonance in organs and systems and thereby

harmonize the work of the body (exert a physiotherapeutic effect on the body).

The exposure is carried out with amplitude modulation with one side lower or upper band (SSB-Single Side Band) of 0.1 V / m ² and the carrier

harmonic frequency from 20 to 30 MHz, modulated by sinusoidal

(harmonic) signals with a frequency of 0.1 - 900000 Hz with a resolution of 0.01 Hz, generated by a generator with direct digital synthesis (DDS-direct digital synthesis). Such characteristics of the emitted frequencies are selected empirically on the basis that they make it possible to obtain a signal with a suppressed carrier and one sideband from an amplitude-modulated signal using known methods (phase or filter method) and devices such as an SSB driver.

The amplitude and phase spectrum of the signal with amplitude modulation of a harmonic carrier ω, a harmonic signal Ω generated by a digital frequency synthesizer (DDS) is shown in FIG. 2.

This can be done due to the fact that the carrier and modulating frequency signals are supplied to the balanced mixers of the SSB signal shaper each with a phase shift of 45 degrees. At the same time, at the output of the mixers, a single-band signal with suppressed carrier and an undesirable sideband is obtained. The choice of the necessary stripes (upper or lower) is carried out by switching the branches of the phase shifters. In this case, the signal spectrum has the form shown in Fig.Z.

The absence of a carrier frequency signal in the SSB signal, as well as one of the sidebands, makes it possible to use all the power of the transmitting equipment to transmit only the useful signal. The energy gain given by the transition from AM (as in the prototype) to SSB (as in the claimed solution) is 4 times in power or 2 times in voltage. This is explained as follows.

The amplitude of the modulating signal for AM modulation is 11mod = Urn cos 2nFt, where Um is the signal amplitude; F is the oscillation frequency; t is time. Oscillations of the carrier (modulated) frequency change according to the law U = Um (t) cos2nfH t, (1)

where Um is the amplitude value; tn is the value of the carrier frequency.

In the process AM, the amplitude of the carrier frequency changes according to the law

Um (t) = UmO + AUmcos2nFt, (2)

where UmO is the amplitude of the unmodulated oscillation; AUm = Ka.m itmod (here Ka.m is the transmission coefficient of the modulation device).

Substituting Um (t) from expression (2) into formula (1), we obtain

U = UmO [cos2nfHt + m / 2cos2rc (fH - F) t + m / 2cos2n (fH + F) t], (3)

where m = AUm / UmO is the amplitude modulation coefficient.

If the amplitude of UmO is unknown, then the modulation coefficient

m = (Umax - Umin) / (Umax + Umin).

It can be seen from (3) that only two sidebands carry information: UmO * m / 2cos2rt (fH - F) t and UmO * m / 2cos2Tt (fH + F) t. With a modulation coefficient of m = 1, the total

the amplitude of the two sidebands is equal to the amplitude of the carrier, i.e. amplitude

the modulated signal is 2 times more than the informational components of its spectrum.

With single-band modulation with one sideband, useful information is not lost, since the lower and upper sidebands are absolutely identical, and the carrier frequency does not carry information. In this case, the amplitude of one sideband differs from the amplitude of the modulated signal by 4 times.

Thus, the advantage of the signal according to the claimed invention is higher than in the prototype 4 times in power and 2 times in voltage, because power from amplitude is quadratic.

The electromagnetic therapy device operates as follows (see Fig. 1). A person using the control keyboard 2 turns on the device and dials a physiotherapeutic intervention program on the keyboard. The program can consist of one or several frequencies in the range of OD - 900000 Hz with a resolution of 0.01 Hz. For each frequency, a time is set in the range from 1 to 4000 s. The microprocessor controller 3 remembers the entered program. The number of programs that the microprocessor controller 3 remembers and stores is from 1 to 2000. After that, it directs the antenna device 8 to the biologically active zone and includes the execution of the exposure program. The microprocessor controller 3, executing a given program, activates the modules of the digital frequency synthesizer and

SSB signal shaper, with the help of which it is possible to obtain a signal with a suppressed carrier and one sideband from an amplitude-modulated signal using known methods (phase or filter method) and devices such as SSB shaper in the frequency ranges 20-30 MHz made with the possibility of generating sinusoidal (harmonic) signals with a frequency of 0.1 - 900000 Hz with a resolution of 0.01 Hz with filling the sound frequency. These signals are supplied to the matching device 7 and through it to the antenna device 8. At the same time, the parameters of the running program of the microprocessor controller 3 are displayed on the liquid crystal display 4. At the end of the specified program, the device automatically turns off. The impact is based on resonance phenomena, and not on forcing organs to perform functions not inherent to them. That is why it is impossible to overdose or cause an exacerbation of the disease with devices of electromagnetic therapy. If the introduced frequency causes resonance, then the body needs it and there is a therapeutic effect. If there is no resonance, then there is no curative effect. And as a consequence of this, it is impossible to harm this device.

However, due to the narrowing of the spectrum band of the emitted electromagnetic field (in comparison with the prototype), it is possible to increase the signal-to-noise ratio. An additional electromagnetic load on the body is removed and, most importantly, the probability of resonance phenomena in the organs and systems of the body increases sharply, i.e. the rendered physiotherapeutic effect increases.

Claims

FORMULA

A device for electromagnetic therapy, comprising an antenna device, an antenna matching device, a power supply, a control keyboard, a liquid crystal display, a step-up voltage converter, the input of which is connected to a power source, a microprocessor controller, outputs connected to a control keyboard, a liquid crystal display to display parameters of the program being executed treatment characterized in that it contains a frequency synthesizer (DDS) made with the possibility of issuing sinusoidal (g rmonicheskih) signals with a frequency of 0.1 - 900,000 Hz with steps of - 0.01 Hz, shaper sideband signal (SSB) amplitude-modulated on one side of the lower or upper band (SSB) an intensity of 0.1 V / m ² and a harmonic frequency of the carrier from 20 to 30 MHz, modulated by sinusoidal (harmonic) signals, and the single-band signal shaper (SSB) is connected by its input to the output of the frequency synthesizer, and the microprocessor controller outputs are connected to the frequency synthesizer to control the parameters generated by the synthesizer modules uyuschih signals.

A device for electromagnetic therapy according to claim 2, characterized in that the microprocessor controller is configured to store up to 2000 therapeutic treatment programs in memory.

A device for electromagnetic therapy according to claim 3, characterized in that each program includes up to 100 frequencies with a working time of 1 to 4000 s.