The physiotherapy instrument is different from medical treatment, but uses natural physical factors to treat certain diseases. Common physical factors include "electricity, sound, light, magnetism, water, pressure, etc.". It corresponds to medical treatment. , Physiotherapy is relatively safe and environmentally friendly. However, the difference between medical treatment and physical therapy is still very effective for certain diseases, such as improving the function of human organs or improving the state of local tissues by improving blood circulation. of.
1. Types of physiotherapy apparatus programs
There are many types of technical solutions for physiotherapy instruments. According to different treatment principles, there are mainly electromagnetic physiotherapy instruments, thermal physiotherapy instruments, microwave physiotherapy instruments, and ultrasonic physiotherapy instruments.
The most widely used physiotherapy equipment should be thermotherapy equipment. The direct result of hyperthermia is to cause vasodilation of local tissues in the human body, which enhances blood flow, opens up blocked capillaries, and increases blood perfusion into human tissues. The efficacy of this type of instrument is directly related to the promotion of tissue and cell metabolism under the condition of improved blood circulation. Therefore, the improvement degree of blood circulation directly corresponds to the curative effect. The most common hyperthermia instruments are short-wave and ultrashort-wave, microwave and infrared physiotherapy instruments.
Second, the principle of electromagnetic physiotherapy instrument program
In recent years, many new technologies and new methods have emerged in clinical practice, and a variety of physical therapy instruments have emerged for the treatment of osteoarthritis, soft tissue torsion injury and lumbar muscle strain and other corresponding diseases. In particular, some therapeutic apparatuses that integrate multiple physical therapy factors have been widely concerned by medical workers, such as magnetic vibration thermal treatment apparatus and ultrashort wave treatment apparatus. The magnetic vibration heat treatment device is a comprehensive treatment device that combines magnetic therapy, warm treatment and micro-vibration treatment. It incorporates the principles of magnetic therapy and modern acupuncture, can bionic a stable and conform to the human body's electromagnetic environment, and with the help of three physical factors of magnetism, vibration and heat to treat diseases.
Magnetic vibration thermal therapy instrument is a reliable method in the field of physical rehabilitation therapy, which can effectively help patients eliminate pain and recover quickly. At present, it has been increasingly used in the auxiliary treatment of chronic soft tissue injury and neck, shoulder, waist and leg pain. Indications include soft tissue contusion, lumbar muscle strain, chronic bronchitis, sciatica, various joint inflammations, and relief of postoperative wound healing.
Man is a conductor living in the earth's magnetic field, and in a sense, it is also a "magnet". Modern medical theory proves that when a disease occurs in a part of the human body, the internal environment of the part will change, and the biological magnetic field and meridians will be disordered. Putting the part in a magnetic field of a certain intensity will adjust the internal environment of the part, so that the biological magnetic field and meridian of the part can reach a new balance and achieve the effect of treating human diseases. Therefore, magnetic field therapy has the clinical effect of regulating menstruation and collaterals, reducing inflammation, relieving pain, activating blood pressure and blood stasis, and lowering blood pressure. Therefore, people invented magnetic therapy and developed various magnetic therapy machines, which are widely used in clinical practice.
Electromagnetic physiotherapy instrument is a magnetic therapy instrument developed by using the principle of electric magnetocaloric effect. Its key component is a magnetocaloric generator, which requires it to not only generate a magnetic field when it is connected to a safe voltage of 36 V, but also have certain flexibility and good adhesion to the human body. For the treatment of common diseases such as hypertension, rheumatoid arthritis, neurasthenia, contusion, tenosynovitis, phlebitis, and appendicitis, it has a relatively good effect.
3. The principle of the ultrashort wave physiotherapy instrument program
The ultrashort wave electrotherapy instrument is a physiotherapy instrument that uses the electric energy of the high-frequency electric field emitted by the capacitive electrode for treatment. Due to the advantages of wide application range, simple operation, stable working performance, obvious treatment effect and low failure rate, it has become the necessary conventional physiotherapy equipment in physiotherapy rooms of various hospitals. Ultrashort wave electric therapy has both thermal and non-thermal effects, and uses ultra-high frequency alternating current to act on the human body to achieve therapeutic purposes.
When using the ultrashort wave electrotherapy device, only the body part to be treated needs to be placed in a high-frequency electric field. After the ultrashort wave electrotherapy device is connected to the power supply, the AC voltage is boosted and rectified by the high-voltage transformer, and then added to the electronic tube. Causes the tube to oscillate. When the high-frequency power is extracted, the electric energy of the high-frequency electric field emitted by the capacitive electrode acts on the affected part of the human body. Under the action of the high-frequency electric field, the molecules and ions in the body will vibrate violently at their balanced positions, The thermal effect of friction causes the surface and deep tissues of the body to be heated evenly, thereby playing a therapeutic role.
Ultrashort wave is an electromagnetic wave with a wavelength between 1m and 10m and a frequency between 30 and 300 MHz, which is generated by an AC oscillation circuit. The method of using this frequency band ultrahigh frequency alternating current to act on human body to treat diseases is called ultrashort wave therapy. The ultrashort wave physiotherapy instrument developed in this paper uses an ultrashort wave with a wavelength of 7.7 m and a frequency of 40·68 MHz, which is generated by a high-frequency oscillation circuit. When the high-frequency current passes through the human body, it affects the ions and charged colloidal particles in the body, and the generated conduction current and displacement current produce different degrees of thermal and biological effects in various tissues.
The effects of ultrashort wave physiotherapy on the human body are roughly divided into thermal effects and non-thermal effects. The thermal effect is mainly manifested in tissue fever, secondary overall fever and other phenomena; the non-thermal effect is especially in the process of low-intensity physiotherapy, and there is no significant increase in tissue temperature, and its biological effect is very obvious, while the same intensity of external heat is not Similar effects. For example, when the human body is treated with low-dose and low-intensity ultrashort waves, the effect on acute inflammation is more pronounced than when it is subjected to high-intensity ultrashort waves. The study found that this non-thermal effect is particularly evident when the low field strength (40 mw/cm2 or less) is applied. When the high field strength is applied, this special effect is masked by the thermal effect.
A large number of clinical trials and research trials have shown that ultrashort waves have a good effect on acute suppurative inflammation, and small-dose treatment can improve blood and lymph circulation. It is often used clinically for acute and subacute inflammation of internal organs, wound ulcers, etc. It has a significant effect.
Fourth, the principle of ultrasonic physiotherapy instrument program
Ultrasound refers to sound waves with a vibration frequency greater than 20 000 Hz. It will interact with the medium during propagation and undergo a series of physical and chemical changes, producing a series of mechanical, thermal, electromagnetic and chemical ultrasonic effects. It forms thermal, mechanical, cavitation, biochemical and other effects in the human body and is used to treat diseases. At present, ultrasound technology has been widely used in the field of beauty. Ultrasound beauty is an ultrasound treatment technology, which uses the biological effects of ultrasound on the human body for beauty treatment. Ultrasound biological effects can enhance tissue penetration, improve cell metabolism, promote blood circulation, soften hard tissues, reduce nerve and muscle excitability, produce good analgesic and antispasmodic effects, thus accelerate cell metabolism, promote tissue pH changes, increase cell membranes Permeability, promote the transdermal penetration of substances.
Plaster is a traditional physiotherapy method for external use of traditional Chinese medicine. It uses the fever agent to promote the penetration of the drug into the human body to achieve the therapeutic effect. However, the application of ultrasound technology in the field of traditional Chinese medicine plaster therapy is relatively rare. Therefore, this article uses an ultrasonic generator, heating module and MLX90615 infrared temperature sensor to design an ultrasonic temperature control plaster physiotherapy based on STC89C52. The core of the physiotherapy instrument is to generate ultrasound and heat acting plaster through the ultrasonic generator and heating module, and use its biological effect to promote the penetration and absorption of the plaster and achieve the purpose of analgesia and improve the therapeutic effect.