METHOD AND APPARATUS FOR A CONTINUOUS NON-INVASIVE AND NON-OBSTRUSIVE MONITORING OF BLOOD PRESSURE
First Claim
1. Method for a continuous non-invasive and non-obtrusive monitoring of blood pressure (BP), comprising the steps of:
- a) measuring the value (PW) of a Pulse Wave parameter, equal to or derived from the Pulse Wave Velocity (PWV) parameter of a segment of the arterial tree of a subject,b) measuring the value (CO) of the Cardiac Output parameter, andc) determining the value (BP) of the blood pressure that satisfies where PW is the value measured in step a), (CO, BP) corresponds to a predicted value of the Pulse Wave parameter computed according to a model of the segment of the arterial tree, the value (CO) of the Cardiac Output parameter measured in step b) and an hypothesized value of the blood pressure.
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Abstract
The invention provides a method and an apparatus for a continuous non-invasive and non-obstrusive monitoring of blood pressure. The method comprises the steps of: a) measuring the value (PW) of a Pulse Wave parameter, equal to or derived from the Pulse Wave Velocity (PWV) parameter of a segment of the arterial tree of a subject, b) measuring the value (CO) of the Cardiac Output parameter, and c) determining the value (BP) of the blood pressure that satisfies
where PW is the value measured in step a), (CO, BP) corresponds to a predicted value of the Pulse Wave parameter computed according to a model of the segment of the arterial tree, the value (CO) of the Cardiac Output parameter measured in step b) and an hypothesized value of the blood pressure.
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Citations
29 Claims
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1. Method for a continuous non-invasive and non-obtrusive monitoring of blood pressure (BP), comprising the steps of:
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a) measuring the value (PW) of a Pulse Wave parameter, equal to or derived from the Pulse Wave Velocity (PWV) parameter of a segment of the arterial tree of a subject, b) measuring the value (CO) of the Cardiac Output parameter, and c) determining the value (BP) of the blood pressure that satisfies where PW is the value measured in step a), (CO, BP) corresponds to a predicted value of the Pulse Wave parameter computed according to a model of the segment of the arterial tree, the value (CO) of the Cardiac Output parameter measured in step b) and an hypothesized value of the blood pressure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. Apparatus for a continuous non-invasive and non-obstrusive monitoring of blood pressure, wherein said apparatus comprises:
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means for measuring the Pulse Wave parameter, equal to or derived from the Pulse Wave Velocity (PWV) parameter of a segment of the arterial tree of a subject, and for providing at least one signal representative of said Pulse Wave parameter, means for measuring the Cardiac Output parameter, and for providing at least one signal representative of said Cardiac Ouput parameter, and means for determining the value of blood pressure (BP) that satisfies where PW is the measured value of the Pulse Wave parameter, (CO, BP) corresponds to a predicted value of the Pulse Wave parameter computed according to a model of the segment of the arterial tree, the measured value (CO) of the Cardiac Output parameter and an hypothesized value of the blood pressure. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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Specification