Dialysis system
CA 1322964 C · Owner: Takakuwa, Tateki · Inventors: Takakuwa, Tateki; Fujikawa, Inobu; Ueda, Mitsutaka
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A dialysis system operates to supply dialysate to a dialyzer from a feed chamber in response to a reduction in the volume of the feed chamber and to recover, used dialysate which is flowed out from the dialyzer into a recovery chamber in response to an increase in the volume of the recovery chamber. The increase in the volume of the recovery chamber is greater in magnitude than the magnitude of a reduction in the volume of the feed chamber, with a difference therebetween being effective to control the amount of ultrafiltration. At least two sets of feed chambers and recovery chambers may be provided, and a supply of the dialysate from the other feed chamber may be initiated before the …
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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 October 12, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 12, 2010.
- 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.