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Last Updated: November 26, 2022

Details for Patent: 8,216,289

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Summary for Patent: 8,216,289
Title:Illuminator for photodynamic therapy
Abstract: An apparatus and method for photodynamic therapy or photodynamic diagnosis using an illuminator comprising a plurality of light sources generally conforming to a contoured surface and irradiating the contoured surface with substantially uniform intensity visible light. The light sources may comprise generally U-shaped fluorescent tubes that are driven by electronic ballasts. Adjustment of the ballast voltage controls the output power of the tubes. The tubes are supported by a sheet-metal or plastic housing and are covered by a polycarbonate shield which directs cooling airflow within the unit and prevents glass-patient contact in the vent of tube breakage. An aluminum reflector located behind the tubes increases both the output irradiance and the uniformity of the output distribution. The spacing of the U-shaped tubes is varied to increase the output at the edges of the illuminator to make the output more uniform. Also, different portions of the tubes are cooled at different amounts, to improve uniformity. A light sensor monitors output from the U-shaped tubes to provide a signal for adjusting the output from the tubes.
Inventor(s): Lundahl; Scott (Lexington, MA), Kozodoy; Rebecca (Randolph, MA), Carroll; Ronald (Hingham, MA), Leppelmeier; Elton (Highland Height, OH)
Assignee: Dusa Pharmaceuticals, Inc. (Wilmington, MA)
Application Number:12/969,999
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 8,216,289
Patent Claim Types:
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Drugs Protected by US Patent 8,216,289

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

International Family Members for US Patent 8,216,289

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Argentina 015054 See Plans and Pricing
Austria 285817 See Plans and Pricing
Austria 423598 See Plans and Pricing
Australia 3858699 See Plans and Pricing
Australia 753997 See Plans and Pricing
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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Serving leading biopharmaceutical companies globally:

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