Defoamer for bubble oxygenator
CA 1050846 A · Owner: Dewall, Richard A. · Inventors: Dewall, Richard A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a bubble oxygenator which includes a housing; an oxygenating chamber extending uprightly in the housing and has means for supplying venous blood to the oxygenating chamber and means for supplying respiratory gas to the oxygenating chamber to form bubbles of respiratory gas from the venous blood. A reservoir for arterial blood is provided in the lower portion of the housing and has an outlet for passing the arterial blood to a patient. A debubbling device is offset laterally from the upper end portion of the oxygenating chamber to receive blood bubbles from the oxygenating chamber and to convert the bubbles into liquid arterial blood to be passed to the reservoir. The debubbling …
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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
- Granted March 20, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 20, 1996.
- 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.