Healing with focused light

Laser surgery - Laser epilation

Laser in medicine

What is so special about laser surgery?

The term laser brings to mind high-tech and precision. The patient expects an innovative and gentle treatment from a laser operation. The power of the focused light should prevent bleeding and recurrence and guarantee a short healing time.

This is why we have been using this technology since 2011. At Pilonidal Sinus Laser OP, a distinction is made between thermal sclerotherapy (FiLaC/SiLaC) and the removal of the fistula with a laser scalpel (laser sinusectomy).

In the post-operative treatment of a pilonidal sinus, Low Level Laser Therapy (LLLT) and laser hair removal are used.

  • Laser beams are monochromatic: visible light contains a continuous spectrum. The laser delivers a precisely defined wavelength. The selection of the wavelength controls where and how the laser works in the tissue.
  • One uses the effect of the selective photothermolysis. This means that a target structure (chromophore) absorbs the light of the wavelength used much more strongly than the surrounding tissue.
  • Laser beams are bundled and coherent: Lasers are characterized by a high energy density brought to the point. This enables us to achieve optimum protection of healthy tissue.
Scheme of absorption curves for medically relevant chromophores
By selecting the wavelength, a targeted therapy is achieved: The curve shows the absorption of different wavelengths in water, the blood pigment haemoglobin and the skin pigment melanin. The two wavelengths of our depilation laser, 800 and 950 nm, are close to the infrared range ("near infrared"). It is important to understand that this is a logarithmic representation. Melanin therefore absorbs the two wavelengths 10 x better than haemoglobin and 100 x stronger than water.
The history of the laser

Einstein and the laser

He had "a magnificent light", wrote the genius of the century in a letter in 1916.
Einstein and the laser
He laid the theoretical foundation for the development of the laser - Albert Einstein. © www.pixabay.com

When Albert Einstein studied the question of how stars emit their light, he succeeded in deriving "an amazingly simple law", which he then published under the title "Radiation emission and absorption according to quantum theory".

Light Amplification by Stimulated Emission of Radiation: On May 16, 1961, the American electrical engineer and physicist Theodor Maiman at the Hughes Research Laboratories succeeded in converting Einstein's flash of inspiration into a functional laser with the first ruby laser.

The publication of this pioneering act was initially rejected. Maiman was nominated twice for the Nobel Prize, but the highest scientific award went to his rival Charles Townes of Bell Labs.

Today, lasers are also indispensable in medicine. In particular, the diode lasers that followed Robert Hall's gallium arsenide laser in 1962 led medicine and surgery into a new era with the availability of handy, powerful lasers.

In 1967, while trying to treat tumours by laser at the University of Budapest, Endre Mester accidentally discovered the healing effect of low-energy laser radiation and thus laid the foundation for LLLT (low level laser therapy).

Laser equipment in our practice

The right tool for every purpose
Blue light for the laser operation of Pilonidal Sinus
New: Intros Dios Blue 470 nm
diode laser 470 nm

Intros Dios Blue

Laser surgery: sinusectomy, removal of warts, pigmented and vascular skin lesions

Despite its apparently low power of maximum 10 W, this laser opens up completely new possibilities for laser surgery: With its optimized effect on hemoglobin and melanin, it cuts precisely along the well perfused fistula capsule. The low penetration depth into the tissue protects the healthy environment even better than infrared lasers. The subcutaneous fatty tissue, which is rich in water due to the tumescent anaesthesia (a special form of local anaesthesia) we use, absorbs almost no energy at all, thermal collateral damage is minimised.

Diode laser for permanent hair removal (laser epilation)
Our MeDioStar NeXT from Asclepion is a powerful laser for hair removal
Diode laser with Wavelength Mix 810/940 nm

Asclepion MeDioStar NeXT

Permanent Hair Removal

Already in the Stone Age, more than 25000 years ago, people are said to have scraped off unwanted hair with sharp shells and stones. The Egyptians at the time of the Pharaohs mixed a depilatory paste made of sugar, lemon juice and rose water ("Halawa"). Permanent hair removal was only possible with electric current or light energy.

Hair removal now represents a worldwide growth market with an estimated volume of 1.35 billion dollars and annual growth rates of 10%. In medical applications, we benefit from this development through the availability of a mature and safe technology.

The melanin in the hair absorbs the energy of the laser. The hair is thereby heated to over 61°C, the hair root is inactivated. The integrated cooling system protects the skin.

Our hair roots are always in different growth phases. The laser works best on thick, pigmented hair in the Anagen phase. In the resting (telogen) phase, the hair root contains no hair and therefore does not absorb any energy. By repeating the treatment every 4 - 6 weeks, all hair roots are gradually reached once in the Anagen phase.

The treatment works the better, the lighter the skin and the darker the hair. In studies, laser treatment was twice as effective as electro depilation. Only with light blonde or white hair does the laser reach its limits.

We observe a very good treatment result after 4 - 8 treatments in a time interval of 4 - 6 weeks. A further treatment 6 months after the end of treatment seems to improve the long-term effect.

Author Year Quantity Follow up (months) % Recurrences Advantage laser
Conroy 2008 14 12 0 k. K.
Sample #2