Apparatus and method for high energy photodynamic therapy of acne vulgaris, seborrhea and other skin disorders
First Claim
1. An apparatus for treatment of a skin disorder and conditions and symptoms associated therewith, the apparatus comprising:
- (a) at least one light source with spectral emittance concentrated in at least one specific narrow spectral band, wherein one spectral band is in the range of 400 to 450 nm radiating energy fluence of at least 5 J/cm2 per a single light exposure; and
(b) an optical system for collecting and shaping light emitted from said at least one light source; and
(c) an electronic unit to control parameters associated with said spectral emittance from said at least one light source.
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Abstract
An apparatus, a device, a system and a method for the phototherapy of different skin disorders including acne vulgaris, seborrhea and inflammation. The invention includes a multiple session treatment method by a high irradiance violet/blue CW time gated, or pulsed, light source with a spectral emission in the range of 400-450 nanometer and possible additional spectral bands in the green and red part of the spectrum. The apparatus includes at least one narrow spectral band light source with spectral emittance concentrated in the violet/blue spectral band. The invention can reduce the level of extra cellular pro inflammatory cytokines related to inflammation as well as to significantly reduce the acne bacteria population by a photodynamic effect. A system for the treatment of acne lesions combining the apparatus for the eradication of P. acne bacteria and the acne affected area inflammation and a device for the elimination of the red spots around the acne lesions using intense pulsed light in the spectral band 500-1000 nm.
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Citations
23 Claims
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1. An apparatus for treatment of a skin disorder and conditions and symptoms associated therewith, the apparatus comprising:
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(a) at least one light source with spectral emittance concentrated in at least one specific narrow spectral band, wherein one spectral band is in the range of 400 to 450 nm radiating energy fluence of at least 5 J/cm2 per a single light exposure; and
(b) an optical system for collecting and shaping light emitted from said at least one light source; and
(c) an electronic unit to control parameters associated with said spectral emittance from said at least one light source. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 19)
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13. A method of treating a skin disorder, comprising:
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providing a light radiation source having spectral characteristics of at least one of a group of narrow spectral bands consisting of violet/blue (400-450 nm), red (630-670 nm) and green (520-550 nm) light said light source having energy output flux over a predetermined threshold level;
illuminating said skin area with said light radiation source;
additionally illuminating said skin area after a predetermined time period. - View Dependent Claims (14, 15, 16, 17, 18, 20)
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21. A system for the combined treatment of acne inflammatory lesions and for the reduction of the lesion localized redness the system comprising:
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(a) a first treatment device for destroying the P. acne bacteria by a violet/blue light exposure; and
(b) a second treatment device for selectively destroying small diameter blood vessels contained at a selected depth and in selected areas of a patient'"'"'s dermis preferably in the vicinity of the acne lesion. - View Dependent Claims (22, 23)
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Specification