Deployable hemostatic agent
CA 2529717 C · Owner: Kirsch, Wolff M. · Inventors: Drake, James; Yang, Chang Zheng; Kirsch, Wolff M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to deployable hemostatic materials comprising chitosan fibers upon which hemostatic microporous polysaccharide microspheres are deposited. The hemostatic materials are suitable for use in controlling active bleeding from artery and vein lacerations sealing femoral artery punctures, and controlling oozing from tissue.
Read the whole patent
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
- Filed June 14, 2004 and granted April 2, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 14, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 14, 2026.
- 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.