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Expired Canadian patentCanada

Automated diastolic blood pressure monitor with data enhancement

CA 1263185 C · Owner: Critikon Company, L.L.C. · Inventors: Hood, Rush W. Jr.; Medero, Richard; Ramsey, Maynard, Iii

CIPO record

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Abstract From the Canadian patent

Abstract of the Disclosure A blood pressure cuff is applied about a subject's artery and inflated above the systolic level thus fully occluding the artery for a full heart cycle. The cuff pressure is thereafter reduced to permit an increasing flow through the progressively less occluded artery and a measure of, the peak amplitudes of the successively encountered blood flow (oscillatory complex) pulses stored in memory. Also retained is the cuff pressure obtaining for each stored complex peak. In accordance with varying aspects of the present invention, the stored complex peak-representing data ensemble is corrected for aberrations; and improved data processing operates on the stored (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 November 21, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 21, 2006.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 3, 1986
GrantedNovember 21, 1989
Term endedNovember 21, 2006
Patent numberCA 1263185 C
Classification (IPC)A61B5/02 +1 more

Timeline

Timeline From CIPO dates

1987198919911993199519971999200120032005Application filedJuly 3, 1986Patent grantedNov 21, 1989Term endedNov 21, 2006

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.