Systems and methods for measuring arterial stiffness
First Claim
Patent Images
1. A system for monitoring a patient, comprising:
- a cuff configured to inflate to at least partially occlude an artery of the patient;
a cuff controller configured to control inflation and deflation of the cuff;
a sensor configured to receive a signal associated with the at least partially occluded artery and generate an output signal based on the received signal; and
a signal analysis module configured to receive the output signal and determine a first hemodynamic parameter based on a first set of data obtained during inflation of the cuff and a second set of data obtained during deflation of the cuff;
wherein the sensor is configured to operate with an oscillometric method and the first set of data comprises a first oscillometric pulse envelope curve and the second set of data comprises a second oscillometric pulse envelope curve.
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Abstract
Disclosed herein is a system for monitoring a patient that includes a cuff configured to inflate to at least partially occlude an artery of the patient and a cuff controller configured to control inflation and deflation of the cuff. The system also includes a sensor configured to receive a signal associated with the at least partially occluded artery and generate an output signal based on the received signal. Also included is a signal analysis module configured to receive the output signal and determine a first hemodynamic parameter based on a first set of data obtained during inflation of the cuff and a second set of data obtained during deflation of the cuff.
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Citations
19 Claims
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1. A system for monitoring a patient, comprising:
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a cuff configured to inflate to at least partially occlude an artery of the patient; a cuff controller configured to control inflation and deflation of the cuff; a sensor configured to receive a signal associated with the at least partially occluded artery and generate an output signal based on the received signal; and a signal analysis module configured to receive the output signal and determine a first hemodynamic parameter based on a first set of data obtained during inflation of the cuff and a second set of data obtained during deflation of the cuff; wherein the sensor is configured to operate with an oscillometric method and the first set of data comprises a first oscillometric pulse envelope curve and the second set of data comprises a second oscillometric pulse envelope curve. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of determining a hemodynamic parameter of a patient, comprising:
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providing a cuff configured to at least partially occlude a vessel of the patient; inflating the cuff over an inflation period; obtaining a first set of data from the cuff during at least a portion of the inflation period; deflating the cuff over a deflation period; obtaining a second set of data during at least a portion of the deflation period; and using a processor to determine a first hemodynamic parameter based on the first set of data and the second set of data; wherein the first set of data comprises a first oscillometric pulse envelope curve and the second set of data comprises a second oscillometric pulse envelope curve. - View Dependent Claims (14, 15, 16)
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17. A system for monitoring a patient, comprising:
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a cuff configured to inflate to at least partially occlude an artery of the patient; a cuff controller configured to control inflation and deflation of the cuff; a sensor configured to receive a signal associated with the at least partially occluded artery and generate an output signal based on the received signal; a signal analysis module configured to receive the output signal and determine a first hemodynamic parameter based on a first set of data obtained during inflation of the cuff and a second set of data obtained during deflation of the cuff; and an accelerometer configured to receive a first accelerometer signal corresponding to the first set of data and a second accelerometer signal corresponding to the second set of data; wherein the first set of data comprises a first oscillometric pulse envelope curve and the second set of data comprises a second oscillometric pulse envelope curve. - View Dependent Claims (18, 19)
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Specification