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Patch, controller, and method for the photodynamic therapy of a dermal lesion

  • US 6,231,593 B1
  • Filed: 07/24/1998
  • Issued: 05/15/2001
  • Est. Priority Date: 03/21/1994
  • Status: Expired due to Term
First Claim
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1. An apparatus for photodynamic therapy of tissue, the apparatus comprising:

  • a source of light for irradiating said tissue with activating light;

    a fluid adapted to be in intimate physical contact with the location of said tissue exposed to said light; and

    at least one pharmaceutical which is activated by said source of light, wherein the pharmaceutical is adapted to be included in said fluid or provided separately at the location of said tissue, and wherein said fluid is a shapeable hydrogel which is transparent to said activating light.

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