Proteolytic cover of wounds
CA 1237983 A · Owner: Ceskoslovenska Akademie Ved · Inventors: Stamberg, Jiri; Turkova, Jaroslava
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention pertains to a cover for a wound which can be in the form of a powder or a dry powdery fluid and serves for covering and treatment of ulcerous and necrotic wounds. It may consist of animal or fungous chitin or chitosan in a powdered form of particle size 0.01 to 0.3 mm or of crosslinked dextran in the form of spheric particles of diameter 0.05 to 0.5 mm and of an immobilized protease. The enzymes are chemically bonded to the structure of the biopolymeric carrier and provide cleaning of the wound by dissolution of undesirable protein material, in particular fibrin necrotic tissues, components of pus, and the like. Additionally the adsorption, and regeneration effects of the …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted June 14, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 14, 2005.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.