Hair removal device and method

Details Hair removal device and method Hair removal device and method

1993-01-19

1995-06-20

Pellegrino, Stephen C.

Surgery

Instruments

Light application

606131, A45D 2600

Patent

active

054257280

ABSTRACT:
A device and process for the permanent removal of unwanted human hair. Hair on a section of skin is contaminated with a substance having high absorption of a frequency band of light. The skin is illuminated with light at this frequency band at sufficient intensity and duration to kill the follicles or the skin tissue feeding the hair. Specific embodiments are disclosed to produce death of the follicles or the skin tissues feeding the hair by heating and by photochemical reaction.

REFERENCES:
patent: 3059192 (1991-10-01), Zaias
patent: 3769963 (1973-11-01), Goldman et al.
patent: 3900034 (1975-08-01), Katz et al.
patent: 4461294 (1984-07-01), Baron
Porphyrins in Tumor Phototherapy--Andreoni et al 1984--pp. 143-155.
Finkelstein et al., "Epilation of Hair-Bearing Urethral Grafts Utilizing the Neodymium:YAG Surgical Laser", 1990, Lasers in Surgery and Medicine, vol. 10, No. 2, New York.

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