Laser Therapy

Laser therapy experiences in our ambulance different applications:

In children replaced the irradiation of acupuncture points with laser light stinging with acupuncture needles. This is possible because children react much more sensitive to stimuli than adults. Also in adults, the treatment of the laser irradiation is possible, but it has a slightly lower efficiency. The effect of the laser light in children is similar to the setting of acupuncture needles in adults. Your kids will love it!

The laser light increases the energy content of each cell in the body and thus accelerates metabolic processes. So healing processes are stimulated and significantly shortened. This is especially of advantage at fresh wounds after surgery, accidents and acute injuries. Laser therapy adds here the acupuncture treatment and accelerates the healing process!

Historical Background

The treatment of light is about as old as the origin of acupuncture. First experiments with sunlight were already performed by Hippocrates (460-370 BC) and Galen (131-201 BC). In the Chinese and Arab culture, there was also therapeutic approaches with red light therapy, which were considered and developed in the 19th Century by Europeans. In the 1930's happened experiments with neon light, that emits red light at 632.8 nm. This frequency range is used today in the red-light laser. After development of the ear acupuncture Nogier used laser therapy for the stimulation of the ear points. At low, tissue sparing power, he tested the use of different frequencies and developed on his observation application recommendations. Other representatives of the Western acupuncture applying laser frequencies and presenting their experiences in application programs are Elias, Voll and Bahr.

Physical Principles

technical specifications

  • energy: value in joules (1 J = 1 mvp)
  • frequency: frequency of periodically repeating pulse of light, in Hertz (1 / s = 1 Hz)
  • coherence: between all parts of the laser radiation the phase relationship (space and time) is fixed, so it is light with an extremely high degree of order (coherent light)
  • performance: value in watts (W) or milliwatts (mW)
  • monochromaticity: typical of laser light, the light of a single wavelength (monochromatic light), in contrast to ordinary light which contains all colors
  • projection: typical of laser light is the low divergence beam (substantially parallel), thus pointlike image of the beam on the skin
  • wavelength: Specify in nanometers (nm)

penetration

those depth at which one-third of the original radiation is detectable (Monte Carlo-definition). Following factors determine the penetration depth:

  • power: crucial; penetration depth is proportional to the power
  • wavelength: the longer the wavelength, the greater the depth of penetration
  • frequency: has negligible influence on penetration
  • incidence angle: lowest loss of reflection (20-30%) at incidence angles 90 °("put laser vertically"); increasing reflection and thus lower penetration depth at deviant angle
  • tissue: resorbing and reflecting the beam differently. Penetration fat> skin> muscle>bone
  • skin color: the darker the skin pigmentation, the higher the reflection and absorption of the laser light
  • level of hair density: the stronger the hair, the smaller the depth of penetration. The same applies for garments. The latter must, of course removed before laser therapy (e.g. pantyhose). The depth of penetration can be enhanced by pressure of the laser on the tissue, as by the pressure the capillaries will be bloodless and thus less hemoglobin absorbs the laser light.

power effect

It is calculated as a factor of the irradiation time and power of the laser. The weaker the power of a laser, the longer a point has to be irradiated in order to achieve the same dose. At the same dose, the result is approximately equal to, but in a more powerful laser a higher effect density is achieved also, that means the light effect per area unit is higher.

effect of laser

effect model

In tissue, the light is reflected, absorbed and scattered, allowing its defined effect. It is assumed that the laser beam changes local electrical conductivity of the skin and causes vibration information delivered to the individual cell. So the pulp -change can be positively influenced. The laser beam is therefore a stimulus, which is penetrating some even millimeters in depth and is thereby be able to stimulate acupuncture points on the ear. Penetration depth as a limiting factor for the effect (as with body acupuncture) is not so important, because the points are superficial.

mechanisms of efficiency

cellular effect
  • increased ATP, DNA and RNA synthesis (in E. coli)
  • increased collagen and protein synthesis
  • enhanced building of new vessels
  • Reduction of Prostaglandin level
  • improved cellular respiration
systemic effect
  • immunostimulatory
  • antiphlogistic
  • analgesic
  • increasing circulation