Electronic spyhygmomanometer
CA 1114638 A · Owner: Ivac Medical Systems, Inc. · Inventors: Georgi, Heinz W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates generally to improvements in methods and apparatus for the measurement of blood pressure and heart rate. Conventional blood pressure measurement procedures are prone to a number of significant deficiencies. For example, the Korotkoff sounds may be of relatively low and difficult to detect amplitudes and are often intermixed and easily confused with ambignous signals generated by artifacts and both internal and external noise. In addition, the determination of the end points for the onset and cessation of the Korotkoff sound pulse train is somewhat subjective. The present invention overcomes these deficiencies of the prior art by providing an electronic method and …
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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
- Granted December 22, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 22, 1998.
- 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.