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.
Patent No.:
Date of Patent:
Jun. 08, 2010
Filed:
Dec. 06, 2002
Breda Mary Cullen, North Yorkshire, GB;
Derek Walter Silcock, North Yorkshire, GB;
Jonathan Warrick, Issy-les-Moulineaux, FR;
Breda Mary Cullen, North Yorkshire, GB;
Derek Walter Silcock, North Yorkshire, GB;
Jonathan Warrick, Issy-les-Moulineaux, FR;
Systagenix Wound Management (US), Inc., Wilmington, DE (US);
Abstract
A wound dressing comprising: a therapeutic agent selected from the group consisting of antimicrobial substances, pain relieving substances, protease inhibitors, and mixtures thereof; and a barrier layer for initially separating the therapeutic agent from a wound fluid in use, wherein the barrier layer comprises a substrate for an enzyme selected from the group consisting of proteases, kallikrein and tissue-plasminogen activator. Preferably the substrate comprises a substrate for elastase or a collagenase. The barrier layer breaks down in infected or chronic wounds, thereby releasing the therapeutic substance selectively into such wounds.