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:
May. 26, 2009
Filed:
Jun. 20, 2003
Shanta M. Modak, River Edge, NJ (US);
Lester A. Sampath, Nyack, NY (US);
Shanta M. Modak, River Edge, NJ (US);
Lester A. Sampath, Nyack, NY (US);
The Trustees of Columbia University in the City of New York, New York, NY (US);
Abstract
The present invention provides for antimicrobial medical articles prepared by a method comprising treating a surface of the medical article with a solution consisting essentially of one or more solvents and a mixture of chlorhexidine free base and a water-soluble chlorhexidine salt, at a weight/weight ratio of between about 1:1 to about 1:5, wherein the combined concentration of chlorhexidine free base and a water-soluble salt of chlorhexidine is about 2% (w/v) or greater. In alternative embodiments, the antimicrobial medical articles may be treated with a similar solution in which the concentrations of chlorhexidine free base and a water-soluble salt of chlorhexidine are each about 0.20 percent (w/v). Other embodiments include those in which the solvent comprises methanol, or the treatment solution further comprises a silver salt, one or more organic acids, an anti-inflammatory agent, and a hydrogel.