Monitoring and control for a laryngeal mask airway device
CA 2680654 C · Owner: Zocca, Mario · Inventors: Brain, Archibald I.J.; Zocca, Mario; Mozzo, Paolo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A reversibly operable motor is mechanically connected to automatically position the piston (27) of an air syringe (26) that is pneumatically connected to the inflatable/deflatable seal ring or cuff (19) of a laryngeal mask airway device (LMA) (12) that is installed in a patient who is being ventilated and/or anaesthetized via the airway of the LMA device (12). Ideally (i) the air at the head end of the syringe (26) plus (ii) the air contained in the inflatable cuff (19) of the LMA (12) plus (iii) the air contained in their interconnection is a 'substantially constant' volume which is shared at these three locations but which is automatically shifted by piston (27) displacement such that air …
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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 December 21, 1998 and granted April 15, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 21, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 21, 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.