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US 2010/0168824 A1Published application
Device and Method for Irradiating Tissue with Light Pulses
AssigneeTechnische UniversitäT Wien
InventorWalter Toriser
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AssigneeTechnische UniversitäT Wien
InventorWalter Toriser
Estimating the term…
The invention relates to a device (1) for irradiating tissue (G) with light pulses (L), comprising a housing (2), at least one light source (3) for emitting the light pulses (L) with a wavelength (λ) of from 600 nm to 660 run, a modulator (4) and a power stage (6) for generating the light pulses (L), and with an activating element (5). For creating a device (1) which is as small, as cost-efficient and as effective as possible, by which as good a therapy success as possible is achieved in various applications, the modulator (4) is designed for generating the light pulses (L) with a pulse frequency (f) of from 1 to 10 Hz, and the power stage (6) is designed for emitting the light pulses (L) with an energy which causes breaking up of the photosensitizer in the photodynamic therapy and evokes a frequency doubling or a two-photon absorption (TPA) in the tissue (G) when treating inflammations without a sensitizer.
-24. (canceled)
A device for irradiating tissue with light pulses, comprising a housing, at least one light source for emitting the light pulses with a wavelength of from 600 nm to 660 nm, a modulator and a power stage for generating the light pulses, and with an activating element, wherein the modulator for generating the light pulses is designed with a pulse frequency of from 1 to 10 Hz, and in that the power stage for generating the light pulses is designed with a peak power density of ≧50 mW/cm2, based on the pulse duty factor, resulting in an energy of the light pulses which causes a two-photon absorption or a frequency doubling in the irradiated tissue.
A method for irradiating tissue with light pulses emitted from light sources and having wave lengths of between 600 and 660 nm, wherein the light pulses are emitted with a pulse frequency of from 1 to 10 Hz and wherein the light pulses are emitted with a peak power density of ≧50 mW/cm2, based on the pulse duty factor, and the energy of the light radiation is adjusted for causing a two-photon absorption or a frequency doubling in the irradiated tissue.
The method of 50, wherein the light pulses are emitted with a pulse frequency of 2.5 Hz and a pulse duty factor of 0.5.
Dependencies are inferred from the claim text.