Disposable infusion cassette with low air bubble retention and improved valves
CA 2683199 C · Owner: Hospira, Inc. · Inventors: Brose, Robert; Gjata, John D.; Lawless, Mike W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cassette that is adapted to engage a drive mechanism for use in infusing a , medicinal liquid into a patient, comprising: (a) a housing having a base on which is mounted a facing member, a fluid path , being defined at least in part by the base and extending through the cassette between an inlet port and an , outlet port of the cassette said fluid path including: (i) an inlet passage coupled in fluid communication , with the inlet port; (ii) an outlet passage coupled in fluid communication with the outlet port; and (iii) a , pumping chamber disposed between the inlet passage and the outlet passage; and (b) an elastomeric , membrane that extends over the fluid path and when displaced …
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 March 11, 2002 and granted December 18, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 11, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 11, 2024.
- 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.