Importance

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Abstract

A power supply comprising a chopper circuit with an inductive filter element may drive a flashlamp to direct flashlamp radiation to a patient's skin. The waveform may have a generally constant current value and may be substantially independent of pulse width repetition rate and of pulse repetition rate. The flashlamp may be selected according to the type of treatment and the expected width of the treatment area. The wavelength of the radiation to be directed to a patient may be limited to a shallow tissue-penetrating, strongly melanin-absorbing wavelength spectrum, such as at most about 590 to 850 nm or at most about 590 to 700 nm. The chosen wavelength spectrum may be-within the UVA through UVB wavelength spectrum so to cause localized pigmentation in a patient's skin. The chosen wavelength spectrum may be a continuous wavelength spectrum. A handpiece may have a housing comprising a housing interior with the flashlamp so that light from the flashlamp passes through the housing interior and out of an aperture for dermatological treatment of a patient. The flashlamp arc length is preferably about 20% greater than the aperture length.

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First Claim