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US 9,095,316 B2Granted
System for generating alarms based on alarm patterns
AssigneeMasimo Corporation
InventorsJames P. Welch, Brian Spencer Long
Life of this patent
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Abstract
An alarm system can include one or more processors. Such processors can receive physiological parameter data associated with a patient. The one or more processors can also select an alarm pattern based at least in part on an indicator of an attribute of the patient. The alarm pattern can include a plurality of different thresholds and corresponding periods of time. Further, the one or more processors can generate an alarm when a value associated with the physiological parameter data satisfies at least one threshold of the plurality of thresholds for the period of time corresponding to the at least one threshold.
Claims20
A method for reducing nuisance alarms, the method comprising:
- receiving physiological information associated with a patient;
- calculating a plurality of values for a physiological parameter over time associated with the patient based at least in part on the received physiological information;
- selecting, under control of one or more processors, an alarm pattern from a first alarm pattern or a second alarm pattern based at least in part on a characteristic of the patient, the alarm pattern including:
- said first alarm pattern including a first threshold having a corresponding first threshold time that indicates a period of time that values of said physiological parameter have crossed the first threshold before generating a first alarm;
- and
- said second alarm pattern including a second threshold having a corresponding second threshold time that indicates a period of time that values of said physiological parameters have crossed the second threshold before generating a second alarm;
- wherein the second threshold time is smaller than the first threshold time and wherein the second alarm pattern corresponds to a time of day when the patient is asleep;
- determining a first length of time that the calculated plurality of values for the physiological parameter have crossed the first threshold;
- determining a second length of time that the calculated plurality of values for the physiological parameter have crossed the second threshold;
- comparing the first length of time with the first threshold time;
- comparing the second length of time with the second threshold time;
- generating a first alarm based on said comparing the first length of time with the first threshold time;
- and
- generating a second alarm based on said comparing the second length of time with the second threshold time.
11 more elements
A method for reducing nuisance alarms, the method comprising:
- receiving a physiological parameter associated with a patient;
- storing a first alarm pattern corresponding to a first time of a day, the first alarm pattern including a plurality of first thresholds each having corresponding first periods of time;
- storing a second alarm pattern corresponding to a second time of a day, the second alarm pattern including a plurality of second thresholds each having corresponding second periods of time, wherein said second time of a day corresponds to when the patient is asleep;
- determining, under control of one or more processors, a time of day;
- selecting an alarm pattern from the first or the second alarm pattern based at least on the determination of the time of day;
- and
- determining whether to generate an alarm based at least in part on a comparison over time of the physiological parameter to a value computed using the selected alarm pattern.
4 more elements
An system for reducing nuisance alarms, the system comprising:
- one or more processors configured to:
- receive physiological parameter data associated with a patient;
- select an alarm pattern from a first alarm pattern or a second alarm pattern based at least in part on an indicator of an attribute of the patient,
- said first alarm pattern including a first threshold having a corresponding first threshold time that indicates a period of time that the physiological parameter data has crossed the first threshold before generating a first alarm;
- and
- said second alarm pattern including a second threshold having a corresponding second threshold time that indicates a period of time that the physiological parameter data has crossed the second threshold before generating a second alarm;
- wherein the second threshold time is smaller than the first threshold time and wherein the second alarm pattern corresponds to a time of day when the patient is asleep;
- determine a first length of time that the physiological parameter data for the physiological parameter has crossed the first threshold;
- determine a second length of time that the calculated plurality of values for the physiological parameter have crossed the second threshold;
- compare the first length of time with the first threshold time;
- compare the second length of time with the second threshold time;
- generate a first alarm based on said comparing the first length of time with the first threshold time;
- and
- generate a second alarm based on said comparing the second length of time with the second threshold time.
11 more elements
Dependencies are inferred from the claim text.