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Ultrasound therapy

Ultrasound therapy is application of ultrasonic oscillations for therapeutic purposes.
For ultrasonic therapy using ultrasonic oscillations frequency 800-900 kHz.
In the field of ultrasonic oscillations in living tissues ultrasound provides mechanical, thermal, physical-chemical effect ("micro massage" cells and tissues); this activates metabolic processes, improves the immune properties of an organism.
Ultrasound has expressed analgesic, antispasmodic, anti-inflammatory and tonic effect, stimulates blood and lymph circulation, regenerative processes, improves trofiku tissue. Ultrasound therapy is conducted with the help of ultrasonic medical apparatus: portable - USP-1 (Fig. 1), UZ-KZT5, and fixed - TCB-1 (Fig. 2)working with the frequency of 880 kHz in continuous and pulse modes; scale of intensity from 0.2 to 2.0 W/cm2, the size of the head of the vibrator (from quartz or of barium titanate) 4 cm2 (devices TSS-1 and us-T5), 10 cm2 (apparatus TCB-1). The device of ULTRASONIC T5 has additional vibrator area of 1 cm2.


Fig. 1. The apparatus for ultrasonic therapy USP-1.

Fig.2. The apparatus for ultrasonic therapy TCB-1.

The main indicator of ultrasonic treatments - intensity ultrasound, i.e. the amount of energy that passes through 1 cm2 surface vibrator for 1 sec., it is measured in watts per square centimeter. In ultrasound therapy usually used small-intensity ultrasound - 0.05 - 0.4 W/cm2, rarely average is 0.5 - 0.8 W/cm2. It is necessary to take into account the total capacity of ultrasound, which gets sick; it is calculated by multiplying the intensity of ultrasound on the area of the vibrator, measured in watts.
To measure the power of ultrasound use the so-called ultrasonic scales IMA-2 (Fig. 3) and IMA-3, where is used the principle of continuous acoustic pressure, being in direct contact with the power of ultrasonic waves.
The impact of ultrasound performed only on the limited part of the body - field effects within an area of 100-260 cm2. Ultrasound is used either on reflexogenic zones or zones: the joint, along the nerve or the vessel on the muscle, a scar, a place pain projection (with diseases of peripheral nerves). You cannot influence of ultrasound on the region of the heart, parenchymatous organs, the scrotum, bony prominences (spinous processes of vertebra, patella).
In the beginning of the course ultrasound therapy affect 1-2 field, gradually the impact zone can be extended to 3 to 5 fields.
Time of influence of ultrasound on the field depends on the size of the field; on average, 1-5 minutes, the entire procedure (impact on several fields) no more than 12-15 minutes On the course of treatment is 10-12 procedures a day, with good endurance daily.


Fig. 3. Ultrasonic scales IMA-2.

As ultrasonic oscillations almost completely reflected from the subtlest layers of air to the body of the patient them down through the airless surface environment - vaseline oil (vegetable) or water. At ultrasonic therapy, as a rule, use the sliding method: on smeared vaseline oil the body move in a longitudinal direction and range ultrasonic head-vibrator, pressing firmly to the skin (Fig. 4); the speed of the vibrator 1 - 2 cm per second. In the region the most pronounced pain points, tense muscles or compacted surface tissues it is useful to hold the vibrator on 5 - 10 seconds.


Fig. 4. The influence of ultrasound on the chest (movable method). Fig. 5. The impact of ultrasound under water.

Ultrasound therapy underwater spend faience hand and foot baths at water temperature 28-32 degrees; vibrator have a distance of 1-2 cm from the site of impact, parallel to it (Fig. 5). It is necessary to monitor the surface of the vibrator under water; when settling on it bubbles of air they are removed with a brush or by hand. Procedures, ultrasound therapy under water, the medical staff must spend in rubber gloves.
Procedures ultrasonic treatment in 1-2 hours after a meal in the comfortable for the patient position (lying or sitting). It is impossible to carry out ultrasonic treatments per day x-ray examination, bathing (hygienic, medical). Prohibited during the course of ultrasonic therapy admission of alcohol and sleeping pills. With the appearance of weakness, dizziness, headache or exacerbations of the disease during the course of ultrasonic therapy should skip 1-2 procedures and to continue treatment through the day with less intensity ultrasound.