Process for forming bioactive composite coatings on implantable devices
CA 2073781 A1 · Owner: Shirkhanzadeh, Morteza · Inventors: Shirkhanzadeh, Morteza
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electrochemical process for forming uniform bioactive, composite coatings on porous and non-porous conductive substrates such as implantable devices is disclosed. Bioactive composite coatings obtained by the process of this invention consist of a crystalline oxide base layer and a bioactive calcium phosphate outer layer such as hydroxyapatite. Bioactive composite coatings obtained by this process are effective in minimizing metal-ion release from the substrate as well as, improving the bioactivity of the implantable devices. The process of this invention allows the production of such coatings in a commercially viable manner.
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 July 13, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 13, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 13, 2014.
- 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.