Membrane type artificial lung and method for manufacture thereof
CA 1299033 C · Owner: Terumo Kabushiki Kaisha Trading As Terumo Corporation · Inventors: Hagiwara, Kazuhiko; Fukazawa, Hiromichi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A membrane type artificial lung uses a: gas-exchange membrane having at least the surface thereof for exposure to blood or the minute pores therein coated or blocked with a vinyl type copolymer having as one of the components thereof a vinyl monomer: possessing a perfluoroalkyl side chain. The gas-exchange membrane of the artificial lung is manufactured by a method which comprises bringing at least the surface of the gas-exchange membrane for exposure to blood into contact with a: solution of the vinyl type copolymer and subsequently vaporizing the solvent in the solution.
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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 April 21, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 21, 2009.
- 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.