Endotracheal tube having ventilation means
CA 2093930 A1 · Owner: Mallinckrodt Medical, Inc. · Inventors: Peckham, Keith A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to an endotracheal tube (10) used for mechanical ventilation of a hospital patient the endotracheal, tube having means to evacuate contaminated secretions that pool within the trachea above an inflatable cuff (14) associated with the endotracheal tube. The evacuating means of the present invention comprises a double lumen (15 16) through which air may be, circulated thus creating an indirect gentle suction through a suction eye (17) communicating with the distal ends of the lumens and located at a position proximal to the inflation cuff. This gentle indirect suction reduces the risk of damage to the tracheal mucosa, which often occurs when applying direct …
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 10, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 10, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 10, 2013.
- 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.