Noninvasive cardiovascular monitoring methods and devices
First Claim
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1. A method of monitoring a physiologic status of a human or animal subject, comprising:
- (a) detecting a blood vessel signal with a sensor;
(b) determining a physiologic time interval from the signal; and
(c) communicating information related to the physiologic status of the subject based on the time interval.
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Abstract
Monitoring the physiologic status of a human or animal subject includes detecting a blood vessel signal with a sensor. A physiologic time interval can be determined, and information related to the physiologic status of the subject can be analyzed and communicated.
124 Citations
45 Claims
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1. A method of monitoring a physiologic status of a human or animal subject, comprising:
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(a) detecting a blood vessel signal with a sensor;
(b) determining a physiologic time interval from the signal; and
(c) communicating information related to the physiologic status of the subject based on the time interval. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A device for monitoring a physiologic status of a human or animal subject comprising:
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a blood vessel signal detection module that detects a blood vessel signal;
a processing module in communication with the blood vessel signal detection module configured to determine a physiologic time interval from the blood vessel signal; and
a communication module in communication with the processing module configured to communicate information related to the physiologic status of the subject based on the time interval. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A method for selecting among a plurality of cardiovascular signal comprising:
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(a) positioning a device having an array of sensing elements on a human or animal subject;
(b) detecting blood vessel signals with the array of sensing elements;
(c) comparing the detected signals to predetermined selection criterion;
(d) selecting a signal from the detected signals that satisfies the criterion; and
(e) repeating steps (b)-(d) and storing at least one amplitude and time value for each selected signal. - View Dependent Claims (23, 24, 25, 26, 27, 28)
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29. A noninvasive device for detecting pulse wave signals comprising:
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a plurality of closely spaced sensing elements forming an array on a flexible substrate that detect pulse wave signals from a subject'"'"'s cardiovascular system, wherein each sensing element is movable relative to other sensing elements in the array so that the array is conformable to an irregular surface; and
a signal processor in communication with the sensing elements configured to calculate a pulse travel time based on the pulse wave signals. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36)
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37. A method for monitoring cardiovascular signals comprising:
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(a) positioning a device having a having a plurality of closely spaced sensing elements forming an array on a flexible substrate on a subject;
(b) detecting a blood vessel signal from the subject'"'"'s cardiovascular system with the sensing elements;
(c) determining a first pulse wave time and a second pulse wave time, wherein one of the first and second pulse wave times is determined from the blood vessel signal; and
(d) determining a pulse wave transit interval from the first and second pulse wave times. - View Dependent Claims (38, 39, 40, 41, 42, 43, 44, 45)
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Specification