The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 10, 2010

Filed:

Sep. 25, 2003
Applicants:

Deborah Addison, Keasden, GB;

Alicia J. Essler, Skipton, GB;

Breda M. Cullen, Skipton, GB;

Derek W. Silcock, Skipton, GB;

Inventors:

Deborah Addison, Keasden, GB;

Alicia J. Essler, Skipton, GB;

Breda M. Cullen, Skipton, GB;

Derek W. Silcock, Skipton, GB;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61L 15/00 (2006.01); A61F 13/00 (2006.01); A61F 15/00 (2006.01);
U.S. Cl.
CPC ...
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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