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1. Different effects of medical lasers
Therapeutic applications of lasers exploit a number of effects that can be produced by the action of a light beam on biological tissue. Whatever the effect used, the mechanism of action always begins with a transfer of the energy carried by the light beam to the tissue. Four effects are usually distinguished:
the photomechanical effect: energy is transported by very brief pulses of light, inducing the creation of a plasma which generates a shock wave that causes mechanical disruption of the tissue structure;
the photoablative effect: the energy absorbed by the tissue causes a certain number of molecular bonds to break;
the thermal effect: energy is locally transformed into heat;
the photochemical effect: light energy is absorbed by an exogenous...
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Different effects of medical lasers
Optical mechanisms
Bibliography
Websites
Société Francophone des Lasers Médicaux http://www.sflm.org
American Society for Laser Medicine & Surgery, Inc.
Laser Group of the French Society of Dermatology
European Laser Association
International Photodynamic Association
European...
Events
ASLMS Annual Meeting, USA
SFLM Annual Congress, France
Risks and prevention :
Regulations
Medical lasers are approved in accordance with MDD 93-42. http://www.ec.europa.eu/enterprise/policies/european-standards/harmonised-standards/medical-devices/index_en.htm
In France
Statistical and economic data
Each year, Laser Focus World magazine publishes a study on the laser market, and the medical laser market in particular (table 1 and figure
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