Non-invasive cardiac performance monitoring device and method
CA 2022299 C · Owner: Robinson, John N. · Inventors: Kunig, Horst E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A non-invasive cardiac monitoring device for calculating the cardiac performance parameters of heartbeat, stroke volume, and cardiac output for an individual. The device receives a plurality of electrocardiogram waveform signals from the individual and selects the R-wave component having the maximum value of the electrocardiogram waveform signals and the T-wave component having the maximum value of the electrocardiogram waveforms. From these values the, stroke volume of the individual and the cardiac output of the individual may be calculated according to the equation: Stroke Volume = 6 x R(max.)/T(max.) + 26Ø The periodicity of subsequent electrocardiogram waveforms are utilized to …
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 July 30, 1990 and granted January 5, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 30, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 30, 2012.
- 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.