Systems and Methods for Combined Pulse Oximetry and Blood Pressure Measurement
First Claim
1. A sensor, comprising:
- a support structure;
a pulse oximetry (SpO2) sensor component comprising at least one emitter and at least one detector, wherein the SpO2 sensor component is coupled to the support structure; and
a continuous non-invasive blood pressure (CNIPB) sensor component comprising at least one emitter and at least one detector, wherein the CNIBP sensor component is coupled to the support structure.
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Abstract
The present disclosure relates to pulse oximetry measurements and, more particularly, relates to a combined sensor that includes a pulse oximetry (SpO2) sensor component and a continuous non-invasive blood pressure (CNIBP) sensor component. The combined sensor can be positioned such that the SpO2 sensor component is located over tissues where pulsatility is weak while the CNIBP sensor component may be located over tissues where pulsatility is strong. A second separate CNIBP sensor may be used to together with the CNIBP sensor component of the combined sensor in order to detect the differential pressure pulse transit time from the heart to two different locations on the body. A pulse signal detected by the CNIBP sensor component of the combined sensor can be used to trigger the SpO2 measurement from the SpO2 sensor component in order to improve SpO2 measurement fidelity.
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Citations
28 Claims
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1. A sensor, comprising:
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a support structure; a pulse oximetry (SpO2) sensor component comprising at least one emitter and at least one detector, wherein the SpO2 sensor component is coupled to the support structure; and a continuous non-invasive blood pressure (CNIPB) sensor component comprising at least one emitter and at least one detector, wherein the CNIBP sensor component is coupled to the support structure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A pulse oximetry and blood pressure monitor, comprising:
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a combined sensor comprising; a support structure; a pulse oximetry (SpO2) sensor component comprising at least one emitter and at least one detector, wherein the SpO2 sensor component is coupled to the support structure; a continuous non-invasive blood pressure (CNIPB) sensor component comprising at least one emitter and at least one detector, wherein the CNIBP sensor component is coupled to the support structure; and a processor capable of measuring pulse oximetry and blood pressure based at least in part on a pulse signal detected by CNIBP sensor component and a photoplethysmograph (PPG) signal detected by the SpO2 sensor component. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method for measuring blood oxygen saturation and blood pressure, comprising:
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detecting a photoplethysmograph (PPG) signal with a pulse oximetry (SpO2) sensor component of a combined sensor comprising at least one emitter and at least one detector; detecting a pulse signal with a continuous non-invasive blood pressure (CNIPB) sensor component of the combined sensor comprising at least one emitter and at least one detector; and measuring pulse oximetry and blood pressure based at least in part on the detected PPG signal and the detected pulse signal. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28)
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Specification