NON-INVASIVE METHOD FOR MONITORING AUTOREGULATION
First Claim
1. A system comprising:
- a controller configured to receive a blood pressure signal representing a non-invasive measure of blood pressure and an oxygen saturation signal representing a non-invasive measure of oxygen saturation,wherein the controller is configured to generate an autoregulation status signal representing a status of cerebral autoregulation, andwherein the autoregulation status signal is based at least in part on a relationship between the measured blood pressure and the measured oxygen saturation.
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Abstract
A system includes a controller that receives a blood pressure signal and an oxygen saturation signal. The blood pressure signal represents a non-invasive measure of blood pressure. The oxygen saturation signal represents a non-invasive measure of oxygen saturation. The controller generates an autoregulation status signal representing a status of cerebral autoregulation. The autoregulation status signal is based, at least in part, on a relationship between the measured blood pressure and the measured oxygen saturation. An exemplary method may include receiving the blood pressure signal and the oxygen saturation signal, defining a relationship between the measured blood pressure and the measured oxygen saturation, determining an autoregulation status based at least in part on the defined relationship, and generating an autoregulation status signal representing the determined autoregulation status.
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Citations
20 Claims
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1. A system comprising:
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a controller configured to receive a blood pressure signal representing a non-invasive measure of blood pressure and an oxygen saturation signal representing a non-invasive measure of oxygen saturation, wherein the controller is configured to generate an autoregulation status signal representing a status of cerebral autoregulation, and wherein the autoregulation status signal is based at least in part on a relationship between the measured blood pressure and the measured oxygen saturation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 20)
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11. A method comprising:
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receiving a blood pressure signal representing a non-invasive measure of blood pressure; receiving an oxygen saturation signal representing a non-invasive measure of oxygen saturation; defining a relationship between the measured blood pressure and the measured oxygen saturation; determining an autoregulation status based at least in part on the defined relationship; and generating an autoregulation status signal representing the determined autoregulation status. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A system comprising:
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a first sensor configured to non-invasively measure blood pressure and generate a blood pressure signal; a second sensor configured to non-invasively measure oxygen saturation and generate an oxygen saturation signal; a controller in communication with the first sensor and the second sensor and configured to receive the blood pressure signal and the oxygen saturation signal, wherein the controller is configured to generate an autoregulation status signal representing a status of cerebral autoregulation, wherein the autoregulation status signal is based at least in part on a linear correlation between the measured blood pressure and the measured oxygen saturation, the linear correlation forming a regression line when plotted, and wherein the controller is configured to determine the autoregulation status based at least in part on a slope of the regression line. - View Dependent Claims (18, 19)
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Specification