Patch, controller, and method for the photodynamic therapy of a dermal lesion
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United States of America Patent
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May 15, 2001
Grant Date -
N/A
app pub date -
Jul 24, 1998
filing date -
Mar 21, 1994
priority date (Note) -
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Abstract
An apparatus for photodynamic therapy (PDT) includes a cover (22) shaped to engage skin tissue (12) and a fiber optic panel (31) housed within the cover (22). Hydrogel (26) is located within the cover (22) and is in intimate physical and optical contact with the fiber optic panel (31) for optically coupling light from the fiber optic panel (31) to the skin tissue (12). The hydrogel (26) engages the stratum corneum (14) and hydrates and softens the stratum corneum (14) to enhance its optical transmissiveness to facilitate the transmission of light therethrough and to enhance its chemical transmissiveness to facilitate the transmission therethrough of photopharmaceuticals (28, 54) for treatment of a dermal lesion 10.
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