Method of cryopreserving musculoskeletal tissues
CA 2067203 C · Owner: Cryolife, Inc. · Inventors: Brockbank, Kelvin G. M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed herein is a method for cryopreserving musculoskeletal tissues such , as ligaments, tendons and cartilage by , placing such tissue in contact with a composition containing a cryopreserving agent comprising a cell-penetrating organic solute which is preferably dimethylsulfoxide, and a glycosaminoglycan which is , preferably chondroitin sulphate in an amount sufficient, to cryopreserve the musculoskeletal tissue. The addition of a glycosaminoglycan to a cryopreserving agent comprising a cell-penetrating organic solute permits a broad range of cooling rates to be employed, rather than the very narrow ranges which are employed using a cryopreserving agent comprising a …
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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
- Filed November 2, 1990 and granted January 11, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 2, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 2, 2012.
- 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
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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.