Title:
HAIR TREATMENT METHOD
Document Type and Number:
WIPO Patent Application WO2004043194
Kind Code:
A3
Abstract:
A hand held device generates a predetermined number of pulses of light having a predetermined electromagnetic spectrum, a predetermined duration, a predetermined inter-pulse interval, and a predetermined total energy. The pulse sequence is delivered to a skin surface to temporarily remove hair through the absorption of light energy only by endogenous chromophores of the hair. Exogenous chromophores for light absorption are not applied to the skin surface at any time. A period of time for reappearance of hair on the selected skin surface after the using of the device to remove hair from the selected skin surface is determined by counting the days to hair reappearance after a test light application. Subsequently, the device is used periodically to apply the pulses of light to the selected skin surface at intervals of shorter length than the determined period of hair regeneration, thereby temporarily maintaining the selected skin surface free of visible hair.
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Inventors:
JAY HARVEY H (US)
Application Number:
PCT/US2003/033399
Publication Date:
August 05, 2004
Filing Date:
October 21, 2003
Export Citation:
Assignee:
JAY HARVEY H (US)
International Classes:
A61B18/20; F04C18/08; F04C18/16; A61B17/00; A61B18/18; F04C29/12; (IPC1-7): A61B18/18
Foreign References:
| US6228074B1 | 2001-05-08 | |||
| US5735844A | 1998-04-07 | |||
| US6050990A | 2000-04-18 |
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