ALARM CONTROL METHOD, PHYSIOLOGICAL MONITORING APPARATUS, AND COMPUTER PROGRAM PRODUCT FOR A PHYSIOLOGICAL MONITORING APPARATUS
First Claim
1. A method for controlling alarms in a physiological monitoring apparatus, the method comprising:
- observing a level of a physiological signal obtained from a subject;
in response to detecting a change of the level of the physiological signal to a predetermined value range representing low signal values, determining signal morphology for the physiological signal, thereby to obtain reference morphology for the physiological signal;
monitoring the signal morphology when the physiological signal remains in the predetermined value range; and
suppressing alarms when the signal morphology fulfills predefined criteria with respect to the reference morphology and the level of the physiological signal remains in the predetermined value range.
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Accused Products
Abstract
A method for controlling alarms in a physiological monitoring apparatus, a physiological monitoring apparatus, and a computer program product for a physiological monitoring apparatus are disclosed. In order to decrease the number of nuisance alarms, the level of a physiological signal obtained from a subject is observed and signal morphology is determined for the physiological signal in response to detecting a change of the level of the physiological signal to a predetermined value range representing low signal values, thereby to obtain reference morphology for the physiological signal. Signal morphology is monitored if the physiological signal remains in the predetermined value range and alarms are suppressed as long as the signal morphology fulfills predefined criteria with respect to the reference morphology and the level of the physiological signal remains in the predetermined value range.
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Citations
20 Claims
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1. A method for controlling alarms in a physiological monitoring apparatus, the method comprising:
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observing a level of a physiological signal obtained from a subject; in response to detecting a change of the level of the physiological signal to a predetermined value range representing low signal values, determining signal morphology for the physiological signal, thereby to obtain reference morphology for the physiological signal; monitoring the signal morphology when the physiological signal remains in the predetermined value range; and suppressing alarms when the signal morphology fulfills predefined criteria with respect to the reference morphology and the level of the physiological signal remains in the predetermined value range. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A physiological monitoring apparatus comprising:
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a signal level monitoring unit adapted to monitor a level of a physiological signal obtained from a subject; a morphology determination unit adapted to determine signal morphology for the physiological signal, thereby to obtain reference morphology for the physiological signal; a morphology monitoring unit adapted to monitor whether the signal morphology fulfills predefined criteria with respect to the reference morphology; and an alarm mode control unit adapted to suppress alarms when the signal waveform morphology fulfills the predefined criteria with respect to the reference morphology and when the level of the physiological signal remains in a predetermined value range representing low signal values. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A computer program product for a physiological monitoring apparatus, the computer program product comprising:
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a first program product portion configured to monitor a level of a physiological signal obtained from a subject; a second program product portion configured to determine signal morphology for the physiological signal, thereby to obtain reference morphology for the physiological signal; a third program product portion configured to monitor whether the signal morphology fulfills predefined criteria with respect to the reference morphology; and a fourth program product portion configured to suppress alarms when the signal waveform morphology fulfills the predefined criteria with respect to the reference morphology and the level of the physiological signal remains in a predetermined value range representing low signal values.
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Specification