A coating for implantable medical devices to control drug elution from abasecoat
CA 2475968 C · Owner: Cardinal Health Switzerland 515 Gmbh · Inventors: Narayanan, Pallassana V.; Carballo, Maritza; Widenhouse, Christopher W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Medical devices, and in particular implantable medical devices may be, coated to minimize or substantially eliminate a biological organism's reaction to, the introduction of the medical device to the organism. An implantable medical device including a substantially tubular member and at least one agent includes a basecoat matrix and a topcoat. The basecoat matrix includes a mixture of the agent and a fluoropolymer. The topcoat includes a second acrylic polymeric material. The fluoropolymer and acrylic are layered and immiscible and configured as a chemical and physical barrier to elution.
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 29, 2004 and granted April 16, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 29, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 29, 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.