Representation of a review of a patent's physiological parameters
First Claim
1. A medical monitoring device comprising:
- a monitor for monitoring and recording at least one physiological parameter of a patient;
a comparator for comparing the at least one monitored physiological parameter with a predetermined threshold associated with the respective physiological parameter or a fixed alarm limit associated with the respective physiological parameter, and for detecting the presence of an event in response to the physiological parameter exceeding the associated threshold or the associated alarm limit for a predetermined period of time;
a memory for storing the fact that an event was detected and the parameter value which caused the event, or the parameter value which caused the event and further recorded parameter values, and the respective time at which the event was detected; and
a computer arrangement for producing a representation of events, which were stored during a predetermined, preceding period of time, in relation to time, the mode of representation of a respective event depending on the extent to which the parameter causing the event has exceeded the associated threshold or the associated alarm limit,the computer arrangement additionally including a display for displaying the respective thresholds or alarm limits during the predetermined, preceding period of time in relation to time, andthe representation for each physiological parameter comprising a coordinate system on a first time axis and on a second axis which extends at right angles to said first axis, the second axis being for a range of values of the respective physiological parameter, the threshold or alarm limit associated with the respective physiological parameter being displayed as a curve in said coordinate system, and the events being shown in the form of bars extending in the direction of said second axis in said coordinate system, the lengths of said bars depending on the maximum extent to which the physiological parameter which caused an event has exceeded the associated threshold or alarm limit.
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Abstract
A medical monitoring device includes a system for monitoring and recording physiological parameters of a patient. The monitored physiological parameters are compared by a comparator with a predetermined threshold or an alarm limitassociated with the respective physiological parameter, the presence of an event being detected, if a physiological parameter exceeds the associated threshold or the associated alarm limit for a predetermined period of time, depending on an operation mode set by a user. If the presence of an event is detected, the fact that an event was detected, the parameter value which caused the event and, optionally, further recorded parameter values as well as the respective time at which the event was detected are stored in a memory. Finally, the medical monitoring device includes a display on which a representation of the events which were stored during a predetermined, preceding period of time is produced in relation to time. The mode of representation of a respective event depends on the extent to which the parameter causing the event has exceeded the associated threshold or the associated alarm limit. Alternatively or additionally, the representation also contains a display showing the respective thresholds during said predetermined period of time, in relation to time.
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Citations
19 Claims
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1. A medical monitoring device comprising:
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a monitor for monitoring and recording at least one physiological parameter of a patient; a comparator for comparing the at least one monitored physiological parameter with a predetermined threshold associated with the respective physiological parameter or a fixed alarm limit associated with the respective physiological parameter, and for detecting the presence of an event in response to the physiological parameter exceeding the associated threshold or the associated alarm limit for a predetermined period of time; a memory for storing the fact that an event was detected and the parameter value which caused the event, or the parameter value which caused the event and further recorded parameter values, and the respective time at which the event was detected; and a computer arrangement for producing a representation of events, which were stored during a predetermined, preceding period of time, in relation to time, the mode of representation of a respective event depending on the extent to which the parameter causing the event has exceeded the associated threshold or the associated alarm limit, the computer arrangement additionally including a display for displaying the respective thresholds or alarm limits during the predetermined, preceding period of time in relation to time, and the representation for each physiological parameter comprising a coordinate system on a first time axis and on a second axis which extends at right angles to said first axis, the second axis being for a range of values of the respective physiological parameter, the threshold or alarm limit associated with the respective physiological parameter being displayed as a curve in said coordinate system, and the events being shown in the form of bars extending in the direction of said second axis in said coordinate system, the lengths of said bars depending on the maximum extent to which the physiological parameter which caused an event has exceeded the associated threshold or alarm limit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of medical monitoring comprising the steps of:
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monitoring and recording at least one physiological parameter of a patient; comparing the at least one monitored physiological parameter with a predetermined threshold associated with the respective physiological parameter or an alarm limit associated with the respective physiological parameter, and detecting the presence of an event, in response to a physiological parameter exceeding the associated threshold or the associated alarm limit for a predetermined period of time; storing the fact that an event was detected and the parameter value which caused the event, or the parameter value which caused the event and further recorded parameter values, and the respective time at which the event was detected; and producing a representation of the events, which were stored during a predetermined, preceding period of time, in relation to time, the mode of representation of a respective event depending on the extent to which the parameter causing the event has exceeded the associated threshold or the associated alarm limit, during the step of Producing the representation of the events, displaying the respective thresholds or alarm limits during the predetermined, preceding period of time in relation to time, and representing each physiological parameter on a coordinate system having a first axis displaying time and a second axis which extends at right angles to said first axis, the second axis displaying a range of values of the respective physiological parameter, displaying the threshold or alarm limit associated with the respective physiological parameter as a curve in said coordinate system, and displaying the events in the form of bars extending in the direction of the second axis in said coordinate system, the length of said bars depending on the maximum extent to which the physiological parameter which caused an event has exceeded the associated threshold or alarm limit. - View Dependent Claims (17, 18, 19)
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Specification