Post-discharge plasma sterilisation device and method
CA 2530489 C · Owner: Ricard, Andre · Inventors: Ricard, Andre; Villeger, Sandrine; Sixou, Michel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a device which is used for the sterilisation of objects (19) in particular medical or surgical instruments. The inventive device is of the type that can create a gaseous plasma from a gas flow which is subjected to en electric field. According to the invention the resulting post-discharge flow is brought into contact with the surface of the objects to be treated. The device is characterised in that the gas flow comprises exclusively nitrogen. Moreover the device comprises means for heating the aforementioned objects which can heat said objects to a temperature of at least 60 ?·¿C during treatment. The invention also relates to a method of using the device.
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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 June 28, 2004 and granted April 17, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 28, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 28, 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.