Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
August 10, 2010
Patent Application Number
10528742
Date Filed
September 25, 2003
Patent Primary Examiner
Patent abstract
A wound treatment device comprising a water-impermeable envelope having at least one aperture. The envelope contains a therapeutic substance. The at least one aperture in the envelope is blocked by a material that breaks down in the presence of one or more active components of wound fluid thereby permitting the therapeutic substance to contact the wound fluid. Preferably, the aperture is blocked by a material that is a substrate for an enzyme present in would fluid, such as a protease.
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