Method and apparatus for the photomodulation of living cells
OwnerDavid H. McDanielinventor
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Abstract
The invention is a system and method for the photomodulation of living tissue. When photomodulated, living tissue will exhibit bioactivation or bioinhibition according to the present invention and, when using the disclosed sources of narrowband multichromatic radiation can cause significant dermatologic advantages such as hair removal, hair growth stimulation, wrinkle reduction, acne reduction and scar removal, vitiligo, etc. This invention may be applied to non-dermatological medical treatments including tumor growth inhibition, cell regeneration, the stimulation of tissue in organs, etc.
Claims14
A method for photomodulating living tissue comprising:
- subjecting the living tissue to a narrowband multichromatic source of electromagnetic radiation under conditions effective to stimulate living tissue, wherein the narrowband, multichromatic source emits light within +/−20 nm of a dominant emissive wavelength and a maximum light intensity of no greater than about 4 J/cm2, and wherein the source of narrowband multichromatic electromagnetic radiation is at least one light emitting diode.
A method for dermatological treatment comprising:
- exposing human skin to a source of narrowband multichromatic electromagnetic radiation having a maximum light intensity of no greater than about 4 J/cm2;
- photomodulating living tissue within the human skin;
- and
- maintaining an intradermal skin temperature below the threshold at which thermal injury occurs to the living tissue, wherein the source of narrowband multichromatic electromagnetic radiation is at least one light emitting diode.
A method for dermatological treatment comprising:
- applying a topical agent to an area of human skin to enhance the penetration of a wavelength of light chosen for treatment;
- exposing the human skin to a source of narrowband multichromatic electromagnetic radiation having a maximum intensity no greater than about 4 J/cm2, wherein the spectrum of electromagnetic radiation emitted by the source of narrowband multichromatic emission includes a wavelength of from about 300 nm to about 1600 nm for a duration of from about 1 millisecond to about 30 minutes;
- reexposing the human skin to the source of narrowband multichromatic electromagnetic radiation for a duration of from about 1 millisecond to about 30 minutes up to 1000 times with an interpulse interval of from about 1 millisecond to about 1000 milliseconds;
- and
- maintaining an intradermal skin temperature below the threshold at which thermal injury occurs, wherein the source of narrowband multichromatic electromagnetic radiation is at least one light emitting diode.
A method for dermatological treatment comprising:
- abrading a segment of human skin to be treated to enhance the transmission through the stratum corneum of electromagnetic radiation;
- exposing the human skin to a source of narrowband multichromatic electromagnetic radiation having a maximum intensity of no greater than about 4 J/cm2, wherein the spectrum of electromagnetic radiation emitted by the source of narrowband multichromatic emission includes a wavelength of from about 300 nm to about 1600 nm for a duration of from about 1 millisecond to about 30 minutes;
- reexposing the human skin to the source of narrowband multichromatic electromagnetic radiation for a duration of from about 1 millisecond to about 30 minutes up to 1000 times with an interpulse interval of from about 1 millisecond to about 1000 milliseconds;
- and
- maintaining an intradermal skin temperature below the threshold at which thermal injury occurs, wherein the source of narrowband multichromatic electromagnetic radiation is at least one light emitting diode.
Dependencies are inferred from the claim text.