MEDICAL LASERS

Types of medical lasers
The difference in the laser in the manufacturer’s environment is the wavelength, power, mediation, and how the laser acts (contact or non-contact). A laser device with a pumping source, a mirror to enhance the crystal or gas beam that is stimulated to create light, and the laser beam guidance systems are in operation. There are two main laser modes. In the first case, the continuous wave mode is as long as the device is turned on. The beam is affected by tissue. The second mode of pulse energy is transmitted in a short time every ten thousand seconds. Lasers of ND, HO, ER, YAG, ER, GR: YAG have pulse modes and continuous waveguides.

Low level laser 
Lasers with a power of less than 0.5 watts are used in therapeutic applications in ear and nose, urology, arthroscopy and general physiotherapy, including helium-neon lasers, diode lasers, argon lasers, and krypton.

Excimer laser (eye laser ):

Eximer lasers are gas lasers that produce light pulses of 10 nanoseconds to ten nanowires of ultraviolet light. Eximer lasers used in medicine have wavelengths of 193, 248 and 308 nm, which are used in the eye and vascular surgery. In ophthalmology, for the correction of myopia and a camera, exerting lasers are used to remove the delicate layer of the cornea.

High power lasers:

These types of lasers are more powerful than laser therapies and are used for soft or hard tissue surgery, or skin and beauty.

• Nd:YAG lasers
• Co2 lasers
• Er:YAG laser
• Alexander’s Laser
• Sapphire laser
• Helium-Neon laser
•Second harmonic lasers
• Powerful diode laser

 Nd:YAG lasers

Nd-YAG lasers are the most common solid-state lasers and of the family of lasers of the yag, in which light is produced by a single-crystalline YAG crystal containing extra ions of the neodymium element. The main wavelength of the laser is 1064 nm in the infrared region and is used in pulsed and continuous mode. This laser is transmitted through optical fibers and their application in the repair of vascular lesions, hemangioma treatment, cutting or evaporation, or deep tissue clotting, and endoscopic and laparoscopic surgery. One of the most commonly used remedies is removing excess hair.

Carbon Dioxide Laser (UltraPulse Laser):

The carbon dioxide gas laser has an initial wavelength of 10600 nm in the upper range of the infrared spectrum and is generally used in medical applications for another laser with a wavelength in the visible range (such as a helium-neon laser or some semiconductor lasers) as a guide laser along with Co2 laser are used. The wavelength of this laser can be absorbed to a large extent by water and materials containing water (such as tissue). Therefore, the Co2 laser is used extensively for operations on the skin and mucous membranes. The transfer of this laser from its production chamber, using multi-part arms, contains special mirrors. In medical applications, carbon dioxide lasers are used up to several dozen watts. This kind of laser is used in continuous diets, pulses and superpulse. One of the users of the Co2 laser is the beauty that can be used to resurfacing the skin and eliminate skin wrinkles and rejuvenation. Other uses of these lasers include cutting and coagulation in surgery, laparoscopic procedures, endoscopy, skin diseases, skin tumors, and skin erosion.

Q-switch 

The laser is Nd-YAG lasers with a wavelength of 1064 nm or KTP lasers with a wavelength of 532 nm, with very short pulses of 3 to 30 nanoseconds. In this laser, the maximum power of each pulse is about 120-100 megawatts. The special use of Q-switched lasers is the removal of tattoos and skin pigments

Powerful diode laser power diode

This kind of laser is a semiconductor type (diode) with a wavelength of 980 nm and infrared, which, unlike high-power therapies (10-20 watts), is used for soft tissue surgery and burning of the vessels in the legs Is afflicted with varicose veins. A high-power diode laser is used in continuous and pulsed diets. Another use of this laser is in dentistry and for whitening

Er: Yag laser

The Erbium-Yag laser is a solid type laser with a wavelength of 2940 nm. This laser is used in resurfacing, which acts more accurately than the Co2 laser to eliminate skin wrinkles. Creates less damage to the surrounding tissues. Also, the recovery time after treatment with Erbium-Jaeger laser is shorter than that of Co2 laser, but it coagulates less coagulation compared to Co2 laser, and therefore peeling is associated with bleeding. This laser is used in orthopedics and dentistry for hard tissue surgery

Alexandrite laser 

The Alexander Laser is a solid type laser with a wavelength of 755 nm in the visible light range. Due to the high absorption of melanin at this wavelength, its special application is to eliminate excess hair.

Ruby Laser 

Ruby laser is the oldest  laser. It is a type of solid laser that uses a crystal of ruby ​​to produce light. The light from the ruby ​​laser is red in garlic and pulses with a wavelength of 694 nm and is used for biological stimulation, skin and dentistry.

Ho: YAG laser

The Ho: YAG laser is a solid laser with a wavelength of 2,100 nm in the infrared light range. The laser operates in a pulsed pulse duration of 200 microseconds and is used in soft tissue surgery to cut and tumor necrosis.

Double frequency laser neodymium-YAG

KTP lasers are solid-state lasers with twice the frequency with long pulses of Nd-YAG. The laser has a wavelength of 532 nm and has a green light in the visible light range. KTP lasers are used to coagulate vessels in the subcutaneous capillaries that are usually around the nose and the species. This laser has an absorption peak in hemoglobin, so blood absorbs more energy than surrounding tissues, and blood vessels can coagulate without damaging the skin.

High power lasers :

These types of lasers are more powerful than laser therapies and are used for soft or hard tissue surgery, or skin and beauty.

• Color Laser Material
• Hard tissue laser surgery

Dye Laser 

Laser dye is a type of liquid laser which is an active liquid solution of colored organic materials or fluids that are specifically bonded to rare earth elements such as Europium or Neodymium. These lasers, by type, have continuous irradiation and pulse modes (even very short pulses). Because of colored organic matter, the laser beam has a wide range of wavelengths, from about 216 nm in the ultraviolet region and the entire visible spectrum Up to about 1800 nm in the infrared area.
Hard tissue surgery Laser surgery
These types of lasers have high power and can be type of gas or diode lasers used in orthopedic applications and spinal cord for cutting bones. Another use of these lasers is in dentistry.

Low-power laser cellular physiology

Following the irradiation of laser-to-cell photons, the cellular response begins with the activation of the photoconductors in the respiratory tract located in the mitochondria, and the effect of that is altered by the cellular redox, along with changes in cell membrane state with calcium displacement and changes in the pH and activation CAMP and DNA doubling lead to protein synthesis. Thus, cellular responses from the cell surface are drawn to the surface of the body and organs, and the effects such as anti-inflammation, anti-edema and swelling, analgesia, cell proliferation, neovascularization and accelerated regeneration, a shift in metabolism to aerobic and immune system balancing The result comes.