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:
Aug. 14, 1990
Filed:
Jan. 24, 1989
Susan M Cole, St. Paul, MN (US);
James E Garbe, St. Paul, MN (US);
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Abstract
A dimensionally stable alginate hydrogel foam wound dressing that absorbs wound exudate without any appreciable swelling. The wound dressing is formed-in-place in the wound cavity or on the wound surface from a reactive composition that foams as it gels. The water-insoluble alginate hydrogel foam based wound dressing is made by mixing together the ingredients of a two component system; applying the resulting composite liquid mixture to a wound site; and allowing the composite mixture to react. One component contains an aqueous suspension of certain di-or trivalent metal salts and an effervescent compound. The second component contains an aqueous solution of a biocompatible, water-soluble acid. At least one compound, and preferably both, contain a water soluble alginate.