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Expired Canadian patentCanada

Blood pressure monitoring method and apparatus

CA 1323075 C · Owner: Eckerle, Joseph S. · Inventors: Eckerle, Joseph S.

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Intraarterial blood pressure is measured noninvasively by an electromechanical transducer (22) that includes an array of transducer elements (22-1 through 22- 19). The transducer extends across an artery (24) with transducer elements at the ends of the array extending beyond opposite edges of the artery. A set of diastolic and/or systolic pressure and pulse amplitude values is obtained from the outputs from the transducer elements, which values are stored in computer (62). Information concerning the subject related to the diameter of the underlying artery including, for example, the subject's age weight, arm, and wrist diameter also is entered into computer (62) through keyboard (64), from …

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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 October 12, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 12, 2010.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 14, 1988
GrantedOctober 12, 1993
Term endedOctober 12, 2010
Patent numberCA 1323075 C
Classification (IPC)A61B5/02 +1 more

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedJan 14, 1988Patent grantedOct 12, 1993Term endedOct 12, 2010

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