METHODS AND DEVICES FOR CALCULATING BLOOD PRESSURE BASED ON MEASUREMENTS OF ARTERIAL BLOOD FLOW AND ARTERIAL LUMEN
First Claim
1. A method of calculating blood pressure, comprising:
- performing, by one or more sensors, two or more measurements, wherein at least two measurements from the two or more measurements correspond to different measurement elevations of a subject'"'"'s limb;
determining, by a processor, a blood flow difference based on the two or more measurements;
determining, by the processor, a hydrostatic pressure difference based on the two or more different measurement elevations of the two or more measurements; and
estimating, by the processor, a blood pressure based on one or more values of blood flow, the hydrostatic pressure difference and the blood flow difference.
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Accused Products
Abstract
An system for calculating blood pressure may include a sensor system and a control system. The control system may be capable of controlling one or more sensors of the sensor system to take at least two measurements, the at least two measurements including at least one measurement taken at each of two or more different measurement elevations of a subject'"'"'s limb. In some examples, the control system may be capable of determining a blood flow difference based on the at least two measurements, of determining a hydrostatic pressure difference based on the two or more different elevations of the at least two measurements and of estimating a blood pressure based on one or more values of blood flow, the hydrostatic pressure difference and the blood flow difference.
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Citations
29 Claims
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1. A method of calculating blood pressure, comprising:
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performing, by one or more sensors, two or more measurements, wherein at least two measurements from the two or more measurements correspond to different measurement elevations of a subject'"'"'s limb; determining, by a processor, a blood flow difference based on the two or more measurements; determining, by the processor, a hydrostatic pressure difference based on the two or more different measurement elevations of the two or more measurements; and estimating, by the processor, a blood pressure based on one or more values of blood flow, the hydrostatic pressure difference and the blood flow difference. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system for calculating blood pressure, comprising:
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a sensor system; and a control system configured for communication with the sensor system, the controls system being capable of; controlling one or more sensors of the sensor system to take two or more measurements, wherein at least two of the two or more measurements correspond to different measurement elevations of a subject'"'"'s limb; determining a blood flow difference based on the or more two or more measurements; determining a hydrostatic pressure difference based on the two or more different measurement elevations of the two or more measurements; and estimating a blood pressure based on one or more values of blood flow, the hydrostatic pressure difference and the blood flow difference. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A system for calculating blood pressure, comprising:
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a sensor system; and control means configured for communication with the sensor system, the control means including means for; controlling one or more sensors of the sensor system to take two or more measurements, wherein at least two measurements of the two or more measurements correspond to different measurement elevations of a subject'"'"'s limb; determining a blood flow difference based on the two or more measurements; determining a hydrostatic pressure difference based on the two or more different measurement elevations of the two or more measurements; and estimating a blood pressure based on one or more values of blood flow, the hydrostatic pressure difference and the blood flow difference. - View Dependent Claims (21, 22, 23, 24, 28, 29)
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25. A non-transitory medium having software stored thereon, the software including instructions for:
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controlling one or more sensors of a sensor system to take two or more measurements, wherein at least two measurements of the two or more measurements correspond to different measurement elevations of a subject'"'"'s limb; determining a blood flow difference based on the at least two measurements; determining a hydrostatic pressure difference based on the two or more different elevations of the at least two measurements; and estimating a blood pressure based on one or more values of blood flow, the hydrostatic pressure difference and the blood flow difference. - View Dependent Claims (26, 27)
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Specification