Anti-pulmonary embolism filter and kit for the storage and the installation of said filter
CA 2067164 C · Owner: Fondation De L'Avenir Pour La Recherche Medicale Appliquee · Inventors: Dibie, Alain; Musset, Dominique
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to an anti-pulmonary embolism filter of the type made of an elastic wire with remanent spring effect characterized in that it is configured like a spiral (1) with three non jointed turns (2 3, 4), the medial turn (3) having a diameter (d3) larger than the diameter (d2 d4) of the two other turns, the diameter (d3) being selected to be approximately equal to the value of the semi-circonference of the vena cava in the area where the filter has to be implanted in order to optimally ensure the function in holding in place the filter by flattening the vena cava.
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 October 9, 1990 and granted December 21, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 9, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 9, 2012.
- 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.