Calcification resistant biomaterial produced by treating with an alcohol prior to cross-linking
CA 2591882 C · Owner: Admedus Regen Pty Ltd · Inventors: Hodge, Andrew Julian; Neethling, William Morris Leonard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a method for producing a calcification resistant implantable biomaterial. In particular, the present invention relates a method comprising the steps of (a) exposing a collagen -containing material to an alcohol-containing solution for at least 24 hours; (b) exposing said material in step (a) to a cross-linking agent; and (c) exposing said material in step (b) to an acidic solution containing an aminocarboxylic acid which inactivates and/or modifies the fixed and/or unfixed cross-linking agent moieties present in the material after step (b); wherein step (b) and (c) are sequential to step (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 December 20, 2005 and granted October 15, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 20, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.