The role of rehabilitation laser

Laser is a major technology produced in the early 1960s, which is widely used in many fields. At present, the clinical value of low-intensity laser irradiation therapy has been affirmed at home and abroad. The laser power emitted by the therapeutic instrument belongs to the low-energy laser, the density of irradiation is far less than the damage threshold of the body and blood, and can penetrate the skin, fat, muscle, blood vessel wall and other tissues of the human body, without causing any damage to the body. A large amount of laser energy penetrates the blood vessel wall and other tissues and is absorbed into the blood, which can play a good therapeutic effect. It mainly has the following functions.

1. Anti-inflammatory effect: The semiconductor laser therapy machine can activate or induce T, B lymphocytes and macrophages to produce cytokines, activate the systemic immune system through lymphocyte recycling, enhance the phagocytosis ability of macrophages, improve non-specific immunity and specific immunity, and inhibit or reduce the effect of inflammation causing pain.

2. Improve local blood circulation: Direct irradiation of the laser of the semiconductor laser therapy machine to the pain site with reduced blood flow or indirect irradiation of the sympathetic ganglion that innervates this range can cause increased blood flow, promote the metabolism of pain-causing substances, and relieve pain.

3. Activate the brain endorphin system: After receiving semiconductor laser radiation, the body can increase the metabolism of brain peptides and accelerate the release of morphine-like substances in the brain to relieve pain.

4. Inhibit nervous system conduction: semiconductor laser not only inhibits the conduction speed of stimulation, but also inhibits the intensity and impulse frequency of stimulation, and has an inhibitory effect on the peripheral nerve impulse, conduction speed, intensity and impulse frequency caused by pain stimulation.

5. Tissue repair: laser irradiation can promote the growth of new blood vessels and granulation tissue proliferation, stimulate protein synthesis, make tissue oxygen supply sufficient, contribute to the metabolism and maturation of various tissue repair cells, promote the production, deposition and crosslinking of collagen fibers.

6. Biological regulation: After laser irradiation, it can enhance the immune function of the body, regulate the endocrine, and achieve a two-way regulatory effect on blood cells.