Method for measurement of systolic and diastolic time intervals
First Claim
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1. A method of determining cardiac time intervals of a patient, the method comprising:
- measuring arterial pulse values;
extrapolating left ventricular waveform data from the arterial pulse values;
identifying main cardiac events based on the left ventricular waveform data; and
deriving systolic and diastolic time intervals based on the main cardiac events.
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Abstract
A method and apparatus for determining cardiac time intervals that can measure physiological data noninvasively. Arterial pulse values are measured either invasively or noninvasively, from which left ventricular waveform data is generated. Systolic and diastolic time intervals are derived based on the left ventricular waveform data.
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Citations
17 Claims
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1. A method of determining cardiac time intervals of a patient, the method comprising:
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measuring arterial pulse values; extrapolating left ventricular waveform data from the arterial pulse values; identifying main cardiac events based on the left ventricular waveform data; and
deriving systolic and diastolic time intervals based on the main cardiac events. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. The method of determining cardiac information of a patient, the method comprising:
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measuring arterial pulse values; and extrapolating left ventricular waveform data from the arterial pulse values. - View Dependent Claims (13)
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14. An apparatus for determining cardiac time intervals, the apparatus comprising:
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an arterial pressure measurement device; means for generating arterial pulse waveform data; means for extrapolating left ventricular waveform data; means for identifying main cardiac events; and means for deriving systolic and diastolic time intervals. - View Dependent Claims (15, 16, 17)
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Specification