What are laserneedles?

A laserneedle is the end-piece of an optical fiber that is connected to a laser source, f.e. laser diode. A glass fiber transports the light generated by the diode virtually at no loss to the body. The laserneedle is attached to the skin but does not penetrate it. This allows the laser beam to penetrate directly the body, stimulate the acupuncture points and develop its biological effect.

The new weberneedle® system as compared to needle acupuncture

  • No lesion of the acupuncture points, thus, very convenient for patients
  • No risk of collapse or infection
  • Well-suited for patients sensible to pain and children
  • No known side-effects when used professionally
  • Excellent clinical effect
  • Positive laser-specific proprietary impacts and additional effects
  • Application only requires a minimum of clinical personnel as compared to needle acupuncture

Why does the effect of laser light go through the skin?

  • White light mainly causes the skin to heat up through surface absorption.
  • In addition to the body hair, haemoglobin and melanin are the main absorbing skin pigments.
  • The penetration depth depends on the tan condition and perfusion size of the body, as they show virtually now absorption in the near infrared range.
  • Laser light (especially infrared) can also cause effects in deeper layers. It leads to a chain of biochemical reactions through specific absorption (cytochromes, porphyries).
  • The pigments of the respiratory chain are particularly suited for the specific absorption of irradiation with the triggering of photochemical reactions.
  • Light electrons are stimulated in the respiratory redux chain.
  • The electrons are transported against the redux decline in the respiratory chain, which finally leads to a phosphorylization from ADP to ATP and to increasing the membrane potential.
  • An increase of the ATP production of 150% can be evidenced through infrared exposure of yeast.
  • The skin poorly resorbs irradiation in the near infrared range, in particular between 800 and 900 nm, which enables the irradiation to penetrate the tissue relatively deep.
  • The longer the laser light waves are, the lesser it is absorbed and deeper it penetrates the tissue.
  • Green light is f.e. significantly absorbed by haemoglobin.
  • For medical treatment, red light in a visible range (630 – 680 nm) and infrared light in a range between 800 and 900 nm with a significantly higher penetration depth is used almost exclusively.
  • Light with longer waves (f.e. 1300 nm) is not appropriate as it is absorbed by water to a great extent, which leads to a very low penetration depth.
  • Ultimately, it mostly depends on the dose within the cell we want to treat.
  • If this cell is not located at the surface, the question, which part of the light reaches it, is of vital importance.
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