US 2002/0173833 A1 · Apparatus and method for high energy photodynamic therapy of acne vulgaris, seborrhea and other skin disorders

Abstract

An apparatus and method for the phototherapy of different skin conditions, particularly acne vulgaris seborrhea and inflammation. The invention consists of a multiple session treatment method by a violet/blue 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 and possibly with the topical application of oxygen transporting compounds, and/or a methylene blue solution. The apparatus includes at least one narrow spectral band light source with spectral emittance concentrated in the violet/blue spectral band. The apparatus use the radiation to reduce the level of extra cellular pro inflammatory cytokines related to inflammation and to significantly reduce the acne bacteria population by a photodynamic effect.

Claims66

Dependent claims

An apparatus for treatment of a skin disorder, 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 405 to 440 nm;
(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.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

10/098,592Filed 18 Mar 2002

Priority

7 Jul 1999

Published

21 Nov 2002

Term ends

Not estimatedThe source records don’t support an estimate.

Classification7 codes

A61K 41/0057
Medicinal preparations obtained by treating materials with wave energy or particle radiation ; Therapies using these preparations: photodynamic…
A61K 41/0071
Photodynamic therapy with a photosensitizer, i.e. agent able to produce reactive oxygen species upon exposure to light or radiation, e.g. UV or…:…
A61N 5/062
Apparatus adapted for a specific treatment: photodynamic therapy, i.e. excitation of an agent
A61N 5/0616
Apparatus adapted for a specific treatment: skin treatment other than tanning

Family

Application09/756,130Continuation in part · filed 9 Jan 2001

Application10/007,702Continuation in part · filed 10 Dec 2001

Application10/098,592Continuation in part · filed 18 Mar 2002

US 2001/0023363 A1Published application

US 2002/0128695 A1Published application

US 6,835,202 B2Related patent

US 2002/0173833 A1This patent

From the US filing history. Foreign family members aren’t listed.

Apparatus and method for high energy photodynamic therapy of acne vulgaris, seborrhea and other skin disorders

Life of this patent

Apparatus and method for high energy photodynamic therapy of acne vulgaris, seborrhea and other skin disorders

Life of this patent

Abstract

Claims66