Device and method for preparation of substitution solution
CA 2276748 A1 · Owner: Gambro Ab · Inventors: Polaschegg, Hans-Dietrich
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is described a device for hemodiafiltration with a fluid balancing device and on-line preparation of the substitution fluid from dialysate by sterile filters. The preferred embodiment uses two sterile filters whereby the first filters the dialysate and the second is passed by the dialysate. This second sterile filter is arranged in the dialysate fluid circuit between the first filter and the dialyser in a positive pressure area which is separated , from the rest of the downstream dialysate circuit. Due to the positive pressure in the area of the second filter the dialysate passes through the , filter membrane and from there to the extracorporeal circuit via a line as …
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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
- Filed January 7, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 7, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 7, 2020.
- 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.