Eye-safe dermatologic treatment apparatus
AssigneeTria Beauty, Inc.
InventorsRobert E. Grove, Mark V. Weckwerth, Tobin C. Island
Life of this patent
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Abstract
A dermatologic treatment apparatus is disclosed which includes one or more housings with at least one housing configured for manipulation in a dermatologic treatment procedure, a light source, and an electrical circuit. The circuit energizes the light source to produce output light pulses. A light path includes an aperture through which eye-safe light pulses are propagated having properties sufficient for providing efficacious treatment. An optical diffuser is disposed along the light path to reduce the integrated radiance to an eye-safe level. The apparatus produces an output fluence not less than 4 J/cm2.
Claims31
A dermatologic treatment apparatus, comprising
- a light source providing pulses of light having an output fluence of 4-100J/cm2 at a target area of a patient and having sufficient fluence to cause hair removal at the target area;
- and
- optical apparatus for distributing light from the light source substantially uniformly across an input of a diffuser wherein the diffuser diffuses the light sufficiently to cause the apparatus to be eye-safe during treatment while maintaining sufficient fluence to cause hair removal at the target area of a patient.
A dermatologic treatment apparatus comprising
- a light source providing coherent light of 4-100 J/cm2 at a target area of a human and having sufficient fluence to effect a hair-removal dermatological treatment at the target area;
- optical apparatus, having an outlet, that communicates the fluence substantially across the outlet, and
- an optical diffuser that diffuses the light so that the light emitted from the apparatus is eye safe during the hair removal dermatological treatment.
A dermatologic treatment apparatus, comprising
- a light source comprising a plurality of laser diodes providing a plurality of light pulses with an output fluence of 4-100 J/cm2 at a target area on a patient and having sufficient fluence to effect a hair removal dermatological treatment at the target area,
- optical apparatus, having an outlet, that communicates the light pulses substantially across the outlet;
- an optical diffuser for diffusing the light received from the outlet so that the light pulses emitted from the apparatus are eye safe for the patient during treatment.
A dermatologic hair-regrowth-inhibiting apparatus, comprising
- a light source comprising one or more laser diodes configured to produce pulses of light in a hair-regrowth-inhibiting procedure wherein the pulses are of sufficient fluence to inhibit hair-regrowth in a target area of a patient;
- a mixer, having an outlet, for substantially uniformly distributing light from the light source across the outlet;
- a diffuser, disposed to receive light from the outlet, for diffusing the light sufficiently that the pulses of light emitted from an output of the diffuser are eye-safe at all distances while remaining of sufficient fluence to inhibit hair-regrowth in the target area of the patient;
- and
- wherein the majority of the fluence of the light pulses is within a spectral band of 500 nm to 1100 nm, the pulses have a pulse duration between 10 milliseconds and 1 second, and the fluence at the target area is between 4 J/cm2 and 100 J/cm2.
A dermatologic apparatus for removing hair comprising
- a divergent light source comprising a plurality of laser diode bars each comprising a plurality of laser diode emitters and configured to produce pulses of light substantially within the spectral band of 500 nm to 1100 nm to effect hair removal in a target area of a patient, the pulses of light having a fluence at the target area between 4 J/cm2 and 100 J/cm2 and each pulse having a pulse duration between 10 milliseconds and 1 second,
- a mixer, having an outlet, for substantially uniformly distributing the light pulses across the outlet, and
- a bulk transmissive diffuser, disposed to receive light from the outlet, for diffusing the light sufficiently that the pulses of light emitted from an output of the diffuser are eye-safe during a hair removal treatment.
Dependencies are inferred from the claim text.