| 摘要 |
<p>An apparatus comprises a first pulsed laser producing a beam of laser radiation having a wavelength between 345 and 600 nm for the treatment of epidermal pigmented lesions and a second pulsed laser producing a beam of laser radiation having a wavelength between 600 and 1100 nm for the treatment of dermal pigmented lesions. A delivery system is coupled to the apparatus and manipulated to deliver radiation to illuminate an area of a subject's skin. The delivery system of the present invention comprises a pair of flexible liquid core light guides having sufficient diameter to efficiently transmit high peak power intensity pulses of wavelengths between 345 and 1100 nm. For treatment of epidermal pigmented lesions, a first liquid core light guide delivers laser radiation of between 345 and 600 nm and preferably about 500 nm wavelength. The fluence is between 1 and 10 J/cm2 at the skin and preferably between 2 and 4 J/cm2. The pulse duration is less than 1 νsec and preferably less than 500 nsec. A 2 to 5 mm diameter spot is illuminated. For treatment of dermal pigmented lesions such as tattoos, a second liquid core light guide delivers laser radiation of between 600 and 1100 nm, fluence is between 1 and 10 J/cm2 at the skin, pulse duration is less than 500. Once again, a 2 to 5 mm diameter spot is illuminated.</p> |
