• #11-1. Ablative Fractional Laser

     

    ▶ Previous Artlcle: #10-5. Q-switched Ruby Laser 

     

     

    10600nm CO2 Fractional Laser

     

    Ablative fractional lasers use three types of wavelengths which are 10600nm, 2940nm and 2790nm.

     

    Among them 10600nm CO2 fractional lasers generate fractional laser beams by either a scanner method or MLA one, forming microablative columns throughout the coagulation zone in the surrounding area (Picture 1).

     

     

    [Ad. ▶HYPERION(Nd:YAG) - Manufacturer: LASEROPTEK(www.laseroptek.com)

    HELIOSⅡ/LOTUSⅡ/HYPERION – Manufacturer: LASEROPTEK(www.laseroptek.com)

     

     

    As the pulse energy increases, the ablative depth and width increase, and so do the coagulative depth and width (Picture 2).

     

    And, the higher the pulse energy is and the more laser beams pass, the larger the target area whose skin tissues are being treated by the fractional laser beam, or the percentage coverage, becomes.

     

    The larger the percentage coverage, the more effective the treatment, but increasing the number of pass and the pulse energy does not necessarily increase the percentage coverage proportionately. 

     

    This is because parts of the area where the fractional beam is directed during the first and second pass may overlap, and the percent coverage increased further after the second pass.

     

     

    Picture 1. Microablative column and coagulation zone of CO2 fractional laser. 

     

     

    -To be continued

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