Artificial kidney
CA 2077848 C · Owner: Chevallet, Jacques · Inventors: Bene, Bernard; Chevallet, Jacques
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
17, An artificial kidney comprises an exchanger (1) having two compartments (2, 3) separated by a semipermeable membrane (4) a, first compartment (2) being connected to a circuit (5 7) for, extracorporeal blood circulation the second compartment (3), having an outlet for draining waste liquid. Means (22 25) are, provided for controlling the flow rate (Q A) of a sterile solution containing a substance (A) to be perfused into the circuit (5 7), for conveying a flow of blood outside the body which flow rate, is controlled as a function of the flow rate (Q OUT) of waste liquid. This kidney makes it possible to dose a substance such as a medicine, glucose or bicarbonate, accurately into the …
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 September 9, 1992 and granted May 6, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 9, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 9, 2014.
- 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.