Method and apparatus for on-line filtration removal of macromolecules from a physiological fluid
CA 1163517 A · Owner: Japan Foundation For Artificial Organs · Inventors: Malchesky, Paul S.; Nose, Yukihiko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An on-line filtration system for the removal of macromolecules greater than 70,000 mol. wt. from a physiological solution, such as blood, in the therapeutic treatment of various disease states. For blood the plasma, (which contains the macromolecules) is separated continuously from the blood using a first membrane filter with a membrane porosity of nominally 0.2 to 1.0 micron. The separated plasma is then continuously filtered in a physiological temperature state or a cooled state through a second membrane filter with a membrane porosity of nominally 0.01 to 0.2 micron, which retains the macromolecules. In the cooled state separation of the macromolecules, is effected more efficiently than …
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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 13, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 13, 2001.
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Timeline
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.