Device and method for providing phototherapy to the brain
First Claim
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1. A therapy apparatus for treating a patient'"'"'s brain, the therapy apparatus comprising:
- a light source having an output emission area positioned to irradiate a target portion of the brain with light having a wavelength between about 630 nanometers and about 1064 nanometers, the light having an efficacious power density of at least about 1 mW/cm2 at the target portion; and
a material interposed between the light source and the patient'"'"'s scalp, the material being substantially transmissive to the light and thermally conductive so as to absorb heat from the scalp.
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Abstract
A therapy apparatus for treating a patient'"'"'s brain is provided. The therapy apparatus includes a light source having an output emission area positioned to irradiate a portion of the brain with an efficacious power density and wavelength of light. The therapy apparatus further includes an element interposed between the light source and the patient'"'"'s scalp. The element is adapted to inhibit temperature increases at the scalp caused by the light.
211 Citations
16 Claims
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1. A therapy apparatus for treating a patient'"'"'s brain, the therapy apparatus comprising:
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a light source having an output emission area positioned to irradiate a target portion of the brain with light having a wavelength between about 630 nanometers and about 1064 nanometers, the light having an efficacious power density of at least about 1 mW/cm2 at the target portion; and
a material interposed between the light source and the patient'"'"'s scalp, the material being substantially transmissive to the light and thermally conductive so as to absorb heat from the scalp. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of irradiating a portion of brain tissue of a patient, the method comprising:
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positioning a light source at a first position and directing light from the light source through a first illuminated area of the patient'"'"'s scalp to irradiate the portion with light having a power density of at least about 1 mW/cm2; and
moving the light source from the first position to a second position and directing light from the light source through a second illuminated area of the patient'"'"'s scalp to irradiate the portion with light having a power density of at least about 1 mW/cm2, the second illuminated area separated from the first illuminated area by at least one non-illuminated area.
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16. A method of treating a portion of brain tissue of a patient, the method comprising:
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removing at least a portion of the hair from a patient'"'"'s scalp from an area of the scalp; and
introducing light having an efficacious power density of at least about 1 mW/cm2 at the portion of brain tissue by directing light through the area of the scalp, wherein the light has a power density at the scalp below a damage threshold of scalp tissue and has sufficient optical power at the scalp to achieve the efficacious power density at the portion of brain tissue.
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Specification