RU2280481C2 - Device for carrying out magnetic laser therapy - Google Patents

Abstract

FIELD: medical engineering.

SUBSTANCE: device has power supply source, control system, laser radiation source and an additional built-in magnetic system composed of permanent magnets of magnetic induction equal to 0.1-1 mTesla units in the working area and built-in coil system. Current pulses are supplied to the coil system synchronously with laser pulses. Coil system magnetic induction is equal to 25-75 mTesla units in the working area. The pulsating induction extinguishes in time in alternating sign mode.

EFFECT: enhanced effectiveness of high intensity treatment.

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Description

The invention relates to medical equipment and can be used in physiotherapy and laser medicine.

Known magnetic laser therapy devices (MLT), widely used in the field of low-intensity laser therapy, for example, the Mustang series, described in the Collection: Low-intensity laser therapy / M .: Technique, 2000, - 724 p.

As a prototype of the selected autonomous small-sized apparatus "Creole", presented in the work of V. Builin. "Creole" (portable therapeutic laser) / M .: "Technics-Pro", 2002, - 88 pp., Which is most closely related to the proposed technical solution. The devices of the Mustang and Creole series have an autonomous source of laser radiation (OR), in the first case, OR is connected to the power supply by a cable, in the second case, OR is placed in the housing together with a power source and a laser radiation control system. Magnetic systems: special nozzles are connected to the OR system in the form of additional products. Typical values of magnetic induction in the working area are 25-75 mT. In some devices, for example, MILTA (see Lasers in Clinical Practice: A Guide for Practitioners / Edited by S. D. Pletnev, M .: Medicine, 1996, - 432 pp.), Magnetic systems with a nominal value of magnetic induction about 35 mTl are built into the case of the OR system.

The disadvantage of such technical solutions is some hardware complication or limitation of the therapy processes to a single value of magnetic induction in the case of the built-in magnet of the MLT MILTA apparatus.

The aim of the invention is to expand the capabilities of devices for laser medicine while using pulsed laser radiation and pulsed magnetic fields, reducing the size and improving the physiotherapeutic effect.

The invention is illustrated in the description below and with the help of Figure 1, which shows the apparatus of MLT and its area of physiotherapy, and Figure 2, which shows graphs of the spatial and temporal distribution of permanent and pulsed magnetic fields.

Figure 1 shows: 1 - the body of the MLT Creole-I2 apparatus, 2 - a pulsed infrared (IR) laser, 2A - laser beam propagation into the work area, 3 - power supply (batteries), 4 - control system, 5 - magnetic system with constant induction, 5A - distribution of magnetic induction in the working area, 6 - case of magnetic systems, 7 - pulsed magnetic system, 7A - propagation of pulsed magnetic induction in the working area, 7B - excited pulsed circular currents in the biosystem - 8.

Figure 2A shows the distribution of magnetic induction (1 - laser, 2 - apparatus body - 2, 3 - PM, 4 - MI) in the working area of exposure to a constant - 3A and pulsed - 4A magnetic fields. On figv shows a graph of the attenuation of the magnetic induction pulse in time - Vi (constant induction - In).

Pulse magnetic fields of the most diverse configurations are widely used in magnetotherapy (Magnetotherapy equipment. Collection edited by G.R.Solovieva, M., 1991, 127 pp.) For accelerated healing of wounds, fractures and bone tissue. The acceleration of healing processes at the molecular and cellular level is due to increased activation in the biosystem in the increased values of the magnetic field induction used in magnetotherapy: 25-75 mT, compared with the initial magnetic induction of the Earth’s magnetic field, equal to about 0.05 mT.

The indicated activation will be significant when the exposure time is already 2-15 minutes, since during this time about one thousand to seven thousand pulses of the magnetic field will be realized. A laser pulse with a duration of 0.15 μs and a magnetic field pulse with a duration of 2 μs act alternately and decay in shape, i.e. damping type to restore the activated displacements in a time of the order of 10 μs. The typical modulation frequency of laser radiation is 80 Hz, and during the absence of a pulse of the order of 12,000 μs, a relatively weak constant magnetic field of 1 mTl acts in the working area, stabilizing on the one hand all the processes of pulsed magnetic therapy, and on the other hand suppressing all the effects of the negative influence of factors, network interference, etc.

It is also necessary to take into account the factors of increase and decrease in the pulsed magnetic field, equal to the period of additional modulation of the electromagnetic field (EMF) with a frequency of about 250 kHz, bioactivating molecular hemoglobin of red blood cells in the working area of the action of magnetic field pulses, which positively affects the metabolism of cells in tissues and organs exposed .

In the affected area, an increase in venous tone, an improvement in regional dynamics, microcirculation and blood circulation in the arterial and venous channels are observed. In the zone of the inflammatory process, tissue hypoxia, vegetative-trophic disorders are reduced. Improving blood circulation leads to an increase in metabolic processes in tissues, improving trophic tissue, etc.

An example of the use of "Creole-I2" in the Physiotherapy Department of the State Institution "Department Hospital named after KE Tsiolkovsky" (Kaluga). The parameters of the physical factors of the autonomous small-sized apparatuses MLT "Creole-I2" were used:

wavelength 0.89 μm 4; impulse power 12 watts; radiation modulation frequency 80 Hz; exposure time from 2 to 15 minutes; pulse duration 2 μs; pulse induction 35 mT; constant induction 1 MT

The listed parameters of the physiotherapeutic effect made it possible in clinical practice to use Creolka-I2 MLT devices in the treatment of many pathological conditions of patients. Due to the autonomy of the devices, the non-contact effect of the laser beam and pulsed magnetic fields on the organs of patients, the use of pharmacological agents, the patient's stay on the bed, the possibility of many outpatient operations and a number of other points are significantly reduced.

Indications for use of the "Creole-I2" apparatus were detected in 111 treated patients. Patients are divided into the following groups:

musculoskeletal system diseases 26 people female genital diseases 25 people respiratory diseases 20 pax peripheral nervous system diseases 16 pax peripheral vascular disease 11 pax

and others.

All patients received 1 capsule 2 times a day on the days of taking the LEVIT laser. With an exacerbation of the disease (2-3 days or 6-7 days of treatment), we reduced the dosage of LLLT (due to exposure, frequency of procedures, distance to the radiation field). The total exacerbation of 111 cases was 7 or 6.7%.

Men predominated by sex: 68 out of 111 people, or 61.3%.

Persons of working age predominated by age - 65 people. or 58.5% and elderly people over 60 years old - 30 people. or 27.5%.

Of the 111 treated patients, the following results were obtained:

improvement 97 people or 87.4% recovery 9 people or 8.1% no change 5 pax or 4.5%

no deterioration was observed.

The above data allow us to conclude that the use of Creole-I2 devices is effective for treating patients with a large number of pathological conditions, they can be used not only in inpatient, outpatient settings, but also at home and in the field.

To date, the effectiveness of magnetic and magnetic laser therapy has been proven. Existing techniques use either a permanent magnet or an alternating magnetic field of high intensity. The latter requires the use of bulky stationary equipment. We have proposed, tested and proved the effectiveness of the impact of a pulsed magnetic field with a relatively low intensity of 25-75 mT, but with steep fronts of 1-3 · 10 ⁵ T / s. In existing devices with pulsed magnetic fields up to 1 T, the indicated parameter for comparison is on average 10 ³ T / s. Thus, from the point of view of a purely pulsed effect, high intensity is achieved at low energy consumption, which allowed us to create a small, lightweight, autonomous device.

Magnetic induction values of the built-in permanent magnetic system at the section of the OR system are from 0.1 to 1 mT. The lower limit is determined by the minimum excess in the working area of the influence of laser radiation in the infrared range (about 20-40 mm from the cutoff of the OR system) over the induction of the Earth’s magnetic field and over the electromagnetic noise of the network system, etc. mTl and constitutes the lower limit of the magnetotherapeutic effect. The range of magnetic induction of pulsed magnetic fields of 25-75 mT is selected at the lower boundary as a limitation in pediatrics, and the upper value as acceptable in existing methods for magnetic laser therapy.

Claims (1)

An apparatus for magnetic laser therapy, consisting of a power supply unit, a control system and a laser radiation source, characterized in that the apparatus further comprises an integrated magnetic system of permanent magnets with an induction value of 0.1-1 mT in the working area and an integrated coil system to which pulses are supplied current synchronously with the laser pulses and the magnetic induction of which is 25-75 mT in the working area, while pulsed induction decays alternately in time.

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