Non-invasive heart monitoring apparatus and method
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United States of America Patent
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Jun 12, 2012
Grant Date -
Sep 27, 2007
app pub date -
Jul 19, 2005
filing date -
Aug 5, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention discloses an apparatus for non-invasive heart monitoring comprising a pulse wave transit time (PWTT) determining device for determining a PWTT at predefined intervals, a first storing means for storing PWTT values resulting of the determining, a blood pressure measuring device for measuring a blood pressure close in time with the determining and a second storing means for storing blood pressure values resulting of the measuring. Furthermore, the apparatus comprises a cardiovascular dynamic change calculating device for calculating a relative change of the PWTT values and the blood pressure values as a function of time. The apparatus further comprises an alarm emitting device for emitting an alarm if the blood pressure values are substantially constant as a function of time and the PWTT values decrease as a function of time. A method for non-invasive heart monitoring is also disclosed.
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