System and Method for Automatic Detection of A Plurality of SPO2 Time Series Pattern Types
First Claim
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1. A pulse oximeter, comprising:
- a probe that is adapted to be attached to a body part of a patient to create a signal indicative of an oxygen saturation of blood of the patient; and
a processor that is adapted to receive the signal produced by the probe, to calculate an SPO2 value based on the signal, to detect a plurality of pattern types of SPO2 indicative of pathophysiologic events, to detect at least one SPO2 shape feature of a rise event of one of the pattern types of SPO2, the shape feature being suggestive of arousal response failure, calculate an SPO2 severity index responsive to the plurality of pattern types of SPO2, wherein the SPO2 severity index increases in response to detection of a pattern suggestive of arousal response failure, and to produce an output indicative of the SPO2 severity index.
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Abstract
The disclosed embodiments relate to pulse oximetry. An exemplary pulse oximeter comprises a probe that is adapted to be attached to a body part of a patient to create a signal indicative of an oxygen saturation of blood of the patient, and a processor that is adapted to receive the signal produced by the probe, to calculate an SPO2 value based on the signal, to detect a plurality of pattern types of SPO2 indicative of pathophysiologic events, and to produce an output indicative of a detected one of the plurality of pattern types.
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Citations
44 Claims
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1. A pulse oximeter, comprising:
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a probe that is adapted to be attached to a body part of a patient to create a signal indicative of an oxygen saturation of blood of the patient; and a processor that is adapted to receive the signal produced by the probe, to calculate an SPO2 value based on the signal, to detect a plurality of pattern types of SPO2 indicative of pathophysiologic events, to detect at least one SPO2 shape feature of a rise event of one of the pattern types of SPO2, the shape feature being suggestive of arousal response failure, calculate an SPO2 severity index responsive to the plurality of pattern types of SPO2, wherein the SPO2 severity index increases in response to detection of a pattern suggestive of arousal response failure, and to produce an output indicative of the SPO2 severity index. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A pulse oximeter, comprising:
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a probe that is adapted to be attached to a body part of a patient to create a signal indicative of an oxygen saturation of blood of the patient; and a processor that is adapted to receive the signal produced by the probe, to calculate an SPO2 value based on the signal, to detect a plurality of cluster pattern types of SPO2, to detect at least one SPO2 shape feature of a rise event of one of the pattern types of SPO2, the shape feature being suggestive of arousal response failure, calculate an SPO2 severity index responsive to the plurality of cluster pattern types of SPO2, wherein the SPO2 severity index increases in response to detection of a pattern suggestive of arousal response failure, and to produce an output indicative of the SPO2 severity index. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A pulse oximeter, comprising:
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a probe that is adapted to be attached to a body part of a patient to create a signal indicative of an oxygen saturation of blood of the patient; and a processor that is adapted to receive the signal produced by the probe, to calculate an SPO2 value based on the signal, to detect a plurality of different cluster pattern types of SPO2, to detect at least one SPO2 shape feature of a rise event of one of the pattern types of SPO2, the shape feature being suggestive of arousal response failure, and to calculate an SPO2 severity index responsive to the plurality of different cluster pattern types of SPO2, wherein the SPO2 severity index increases in response to detection of a pattern suggestive of arousal response failure, and to produce an output indicative of the SPO2 severity index. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. A method of monitoring a patient, comprising:
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receiving a signal indicative of an oxygen saturation of blood of the patient; calculating an SPO2 value based on the signal on a processor of a monitor; detecting a plurality of pattern types of SPO2 indicative of pathophysiologic events suggestive of arousal response failure; detecting at least one SPO2 shape feature of a rise event of one of the pattern types of SPO2, the shape feature being suggestive of arousal response failure; calculating an SPO2 severity index responsive to the plurality of pattern types of SPO2, wherein the SPO2 severity index increases in response to detection of a pattern suggestive of arousal response failure; and producing an output indicative of the SPO2 severity index. - View Dependent Claims (34, 35, 36)
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37. A method of monitoring a patient, comprising:
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receiving a signal indicative of an oxygen saturation of blood of the patient; calculating an SPO2 value based on the signal on a processor of a monitor; detecting a plurality of cluster pattern types of SPO2 suggestive of arousal response failure; calculating an SPO2 severity index responsive to the plurality, of cluster pattern types of SPO2, wherein the SPO2 severity index increases in response to the detection of a cluster pattern type of SPO2 suggestive of arousal response failure; and producing an output indicative of SPO2 severity index. - View Dependent Claims (38, 39, 40)
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41. A method of monitoring a patient, comprising:
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receiving a signal indicative of an oxygen saturation of blood of the patient; calculating an SPO2 value based on the signal on a processor of a monitor; detecting a plurality of different cluster pattern types of SPO2 suggestive of arousal response failure; detecting at least one SPO2 shape feature of a rise event of one of the cluster pattern types of SPO2, the shape feature being suggestive of arousal response failure; calculating an SPO2 severity index responsive to the different cluster pattern types of SPO2, wherein the SPO2 severity index increases in response to detection of a pattern suggestive of arousal response failure; and producing an output indicative of the SPO2 severity index. - View Dependent Claims (42, 43, 44)
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Specification