The use of ultrasound in physiotherapy chetiridestte dates from the last century. Damaging effects of high intensity ultrasound detects Paul Langevin, French physicist, when it ill hand holding device emitting high intensity ultrasound through which destroys fish passage located in the test tank. In 1938, Reimar Polman demonstrate the therapeutic effect of ultrasound waves on human tissue. In 1942, Lynn and Putnam successfully use ultrasonic waves to destroy brain tissue in animals. This is seen as the most early experiments with ultrasound for therapeutic purposes on biological tissue. These first experiments help to further improve the medical equipment Ultrasound therapy. Nowadays such medical equipment is a wide range of application in physiotherapy and rehabilitation.
Biological and therapeutic effects of medical equipment emitting ultrasound is associated with: • a mechanical component of an ultrasonic pressure. It causes eddies in the cytoplasm, which underlie etc. micromassage of tissues; • absorption of ultrasonic energy into the tissue and converting it into heat. Warming the interface leads to a change of diffusion processes, increase permeability of biological membranes and enhance metabolism in treated tissues; • the possibility ultrasound to import drugs into the body, etc. phonophoresis, wherein even small quantities of medicinal substances introduced by means of ultrasound have a better pharmacological activity than other methods.
• anti-inflammatory and analgesic effect;
• desensitization and fibrinolytic action;
• sympatholytic effect on the autonomic nervous system, pain syndromes and the syndrome of irritation of the peripheral motor neurons by raising the threshold of irritation, reducing the excitability and conductivity.
Technique when working with ultrasound equipment: An important condition is to maintain close contact between the transmitting probe and the skin of the patient. The presence of air prevents the passage of ultrasonic energy in the tissues due to the great difference in the acoustic impedance of the tissue and air. As mediators used highly viscous liquids having an acoustic impedance close to that of the tissue (petrolatum, liquid paraffin, etc. sonogel.) Or degassed water.
Basic methods for applying ultrasound therapy Direct application - ultrasound is introduced by a circular massage with gentle circular or linear movements, or by attaching the transmitter over a section stationary. Indirect application - using rubber bladders filled with degassed water.
Ultrasound in cosmetics By sonication in cosmetics is achieved stimulate blood circulation, improve the metabolism of cell membrane of skin cells, stimulation of subcutaneous muscle and thus - to reduce aging of the skin. These procedures can be used various nourishing creams, emulsions, gels, anti-cellulite creams (after treatments with electro), nourishing lotions for dry skins and more. This achieves the following effects: • gradually remove wrinkles and improve the overall structure of the epidermis; • closing of pores; • reduce circles under the eyes; • improved skin hydration; • improving the akneidnata skin.