US Patent No: 6,050,990
Number of patents in Portfolio can not be more than 2000
Methods and devices for inhibiting hair growth and related skin treatments
Stats
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Apr 18, 2000
Issued date -
Dec 4, 1997
filing date -
08/984,892
serial no -
Expired
status
Importance
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Abstract
Methods of applying laser light to the skin, and apparatus therefor, include methods for removing hair, for synchronizing hair growth, for stimulating hair growth, for treating Herpes virus, for reducing sweat and body odor, for in situ formation of a chromophore in hair ducts, for reducing light loss at the skin surface, for grafting of hair stem cells, and for removing keloid or hypertrophic scars. The hair removal methods include controlling the proportions of photomechanical and photothermal damage by selection of laser parameters, chromophore particle size and/or pulse duration, with optional dynamic skin cooling. Additional hair removal methods include infiltrating a photoactivated drug into hair ducts and exposing the skin to sunlight or administering an anti-proliferative agent into hair ducts, for example, by encapsulating the anti-proliferative agent in a slow release vehicle. The methods of treating Herpes virus, reducing sweat or body odor, and removing keloid or hypertrophic scars include infiltrating a light-absorbing contaminant into hair ducts or other openings in the skin and illuminating the contaminated skin section. The methods for stimulating hair growth include grafting of cloned auto hair stem cells the hair ducts or administering methionine to a skin section to increase hair growth. Apparatus useful in performing these methods include devices for making a smooth optical boundary between skin and air or for dividing a light beam into a plurality of smaller light beams, and dressings for use before, during and after laser illumination.
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First Claim
Related Publications
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 5,057,104 Method and apparatus for treating cutaneous vascular lesions | 153 | 1989 | |
| 5,282,797 Method for treating cutaneous vascular lesions | 240 | 1991 | |
| 5,486,172 Apparatus for treating cutaneous vascular lesions | 110 | 1994 | |
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| 5,217,455 Laser treatment method for removing pigmentations, lesions, and abnormalities from the skin of a living human | 155 | 1991 | |
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| 5,558,666 Handpiece for producing highly collimated laser beam for dermatological procedures | 47 | 1994 | |
| 5,558,667 Method and apparatus for treating vascular lesions | 125 | 1995 | |
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| 5,425,728 Hair removal device and method | 177 | 1993 | |
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| 4,608,978 Method and apparatus for photoepiltion | 108 | 1983 | |
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| 4,919,664 Stimulation of hair growth | 23 | 1987 | |
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| 5,474,528 Combination controller and patch for the photodynamic therapy of dermal lesion | 50 | 1994 | |
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| 4,461,294 Apparatus and process for recurving the cornea of an eye | 186 | 1982 | |
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| 4,388,924 Method for laser depilation | 150 | 1981 | |
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| 5,632,741 Epilation system | 29 | 1995 | |
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| 5,360,447 Laser assisted hair transplant method | 47 | 1993 | |
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| 5,630,811 Method and apparatus for hair removal | 99 | 1996 | |
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| 5,519,534 Irradiance attachment for an optical fiber to provide a uniform level of illumination across a plane | 74 | 1994 | |
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| 5,767,152 Composition and methods for stimulating hair growth | 24 | 1995 | |
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| 5,401,503 Hair growth stimulant | 5 | 1993 | |
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| 5,464,436 Method of performing laser therapy | 143 | 1994 | |
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| 5,735,844 Hair removal using optical pulses | 174 | 1996 | |
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| 5,556,783 Methods of culturing and modulating the growth of hair follicular stem cells | 11 | 1993 | |
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| 5,595,568 Permanent hair removal using optical pulses | 172 | 1995 | |
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| 5,226,907 Hair removal device and method | 183 | 1991 | |
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| 5,236,950 Process for hair growth | 7 | 1989 | |
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| 4,813,412 Automatic system for an epilator device | 36 | 1987 | |
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| 4,617,926 Depilation device and method | 130 | 1984 | |
| 4,712,543 Process for recurving the cornea of an eye | 41 | 1984 | |
| 5,059,192 Method of hair depilation | 151 | 1990 | |
| 5,304,170 Method of laser-induced tissue necrosis in carotenoid-containing skin structures | 142 | 1993 | |
| 5,647,866 Method of hair depilation | 47 | 1996 | |