Bistable spring construction for a stent and other medical apparatus
CA 2602435 C · Owner: Nexeon Medsystems, Inc. · Inventors: Besselink, Petrus Antonius
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is directed to bistable cells and their use in devices particularly medical devices such as stents clamps and valves. An expandable stent formed of a plurality of bistable cells is described. The stent has two or more stable configurations including a first stable configuration with a first diameter and a second stable configuration with a second larger diameter. A valve comprising a bistable cell for use in eliminating incontinence is also disclosed.
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 January 23, 1998 and granted March 13, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 23, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 23, 2020.
- 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.