Implantable biological tissue and process for preparation thereof
CA 1231060 A · Owner: Baxter International Inc. · Inventors: Carpentier, Alain F.; Carpentier, Sophie; Nashef, Aws S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for the preparation of implantable biological tissue and in particular bioprosthetic heart valves which are prone to, calcification after implantation. The process includes treatment of tissue with a hypophosphated isotonic solution prior to implantation which has been found effective in reducing calcification of the implanted tissue. The solution contains a physiologically acceptable salt of a divalent cation other than calcium.
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
- Granted January 5, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 5, 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.