Apparatus and method of finding the diastolic blood pressure point using pulse oximetry
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United States of America Patent
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Jun 11, 2002
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N/A
app pub date -
Oct 2, 2000
filing date -
Oct 5, 1999
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Abstract
An apparatus and method are provided for deriving diastolic blood pressure (DP) from systolic blood pressure (SP) and mean blood pressure (MP), especially useful in infants. A pulse oximeter is used to measure systolic blood pressure (SP) and an oscillametric blood pressure cuff is used to measure mean blood pressure (MP). Diastolic blood pressure is then derived from the formula: ##EQU1## where K is a constant of 2.94.+-.0.04 and C is a constant of 2.06.+-.0.04.
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