Device for local magnetotherapy. Encyclopedia of radio electronics and electrical engineering

Encyclopedia of radio electronics and electrical engineering / Electronics in medicine

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If you or your loved ones suffer from joint pain from salt deposits (polyarthritis, arthritis, arthrosis), then try using the proposed device.

Everything rests on the electronic bonds of atoms, electrons, protons, etc. But the human body itself also produces electrical signals that control our well-being. Violation of electrical connections in the body causes disease. On the principle of restoration of connections in the human body, the whole teaching of ancient Chinese medicine is based on the impact on biologically active points (zhen-jiu therapy). Modern medicine and the development of electronics have added various forms of reflexology to this teaching. These are laser, magnetic, light, sound and many other types of therapy. Most of them directed locally (locally) affect the painful areas of the body.

The proposed device generates pulses of a magnetic field of low power. The scheme of the device is given in fig. 1.

The device consists of three functional blocks - a generator, a shaper and a current amplifier. The generator is assembled according to the multivibrator circuit on the elements DD1.1, DD1.2. The short pulse shaper consists of a differentiating chain C2, R4 and elements DD1.3, DD1.4. The current amplifier is assembled on transistors VT1, VT2 operating in the key mode. Diode VD1 is necessary to protect transistors from breakdown by self-induction currents. The LED can be taken of the AL307 type or any other, by reducing the value of the resistor R7 to 2 k. But with such a replacement, the current consumption will increase.

The electromagnet has a winding resistance of at least 20 ohms. The electromagnet coil is wound on a frame with an inner diameter of 10 mm and an outer 20 mm wire PEV-2 0,22. You can take a spool ready from threads, but always wooden. Winding until the frame is filled. The last winding layer, together with soldered flexible wires about 50 cm long, is wrapped with electrical tape. A magnetic circuit is inserted into the hole of the coil - a core made of mild steel, for example, steel 3. As a core for a coil taken from threads, an M10 bolt without a head is screwed in well. The device is assembled in a suitable box, where the frequency regulator, LED, battery type (Krona) are installed. The wire from the magnet is connected to the device with a stereo connector, which simultaneously functions as a power switch. At the first turn on, the change in the frequency of switching on the LED is controlled when the frequency regulator is rotated. The operation of the magnet can be checked if you bring it to the screen of a color TV - this is safe. Shadows should appear on the screen in sync with the LED flashes.

The PCB drawing is shown in fig. 2.

Attention!

It is forbidden to use the device for people who have electromechanical pacemakers! During the operation of the device, the magnet is brought to the painful joint with a magnetic circuit and slow circular movements are made. Exposure time up to 30 minutes. The frequency of the generator is set to the minimum, controlling them by the flashes of the LED. If the pain does not subside, the frequency of generation is slowly increased. At the same time, it must be remembered that a high frequency is designed to break down salt deposits, so the pain may increase for a while.

This device can be used in the treatment of fractures and wound healing [1], as well as for toothaches.

Another application of this device is the treatment of seeds before planting. A magnet is placed on the seed box for 30 seconds, the pulse frequency is minimal. Long-term practice of seed treatment has shown good seedling vitality, increased resistance to diseases and larger fruits. Although in the first phase, until the true leaf, the plant is delayed in growth, in the subsequent it overtakes the "untreated" seedlings. The main thing in this matter is not to overdo it when processing with a magnet.

Literature

1. Device for local magnetotherapy. - Radio, 1995, 12, p. 58.

Publication: cxem.net

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