Process and devices for determining the instant of injection and the duration of injection in thermodilution measurements
CA 2246563 C · Owner: Pfeiffer, Ulrich · Inventors: Seebauer, Tobias; Joeken, Stephan; Pfeiffer, Ulrich
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a process and devices for determining the instant of injection and the duration of injection in thermodilution measurements in which an injectate fluid at a temperature deviating from the temperature of the blood of a patient is injected at a specific injection site into a blood vessel of the patient and the temperature of the blood is measured at a measuring site downstream of the injection site, the injectate fluid being used at approximately room temperature and before, entry into the blood vessel, passed via a temperature sensor which, before the measurement, has a temperature deviating from room temperature, the temperature determined by the temperature …
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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 September 3, 1998 and granted February 11, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 3, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 3, 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
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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.