Physiological parameter system
First Claim
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1. A patient monitor comprising:
- a first input configured to receive a first parameter signal, said first parameter signal indicative of a first physiological parameter of a patient and said first parameter signal responsive to a first physiological sensor monitoring said patient;
a second input configured to receive a second parameter signal, the second parameter signal indicative of a second physiological parameter of the patient and responsive to a second physiological sensor monitoring said patient, the second physiological parameter different than the first physiological parameter; and
a processor responsive to a combination of both of said first and second inputs to generate a diagnostic indication of a patient condition or an alarm output, wherein the processor is configured to;
determine trend data based on the second parameter signal;
set a variable threshold in response to the trend data;
determine a measurement reading of first physiological parameter based on the first parameter signal;
compare the measurement reading of the first physiological parameter to the variable threshold; and
generate the diagnostic indication or the alarm output based at least in part on said comparison.
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Abstract
A physiological parameter system has one or more parameter inputs responsive to one or more physiological sensors. The physiological parameter system may also have quality indicators relating to confidence in the parameter inputs. A processor is adapted to combine the parameter inputs, quality indicators and predetermined limits for the parameters inputs and quality indicators so as to generate alarm outputs or control outputs or both.
669 Citations
10 Claims
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1. A patient monitor comprising:
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a first input configured to receive a first parameter signal, said first parameter signal indicative of a first physiological parameter of a patient and said first parameter signal responsive to a first physiological sensor monitoring said patient; a second input configured to receive a second parameter signal, the second parameter signal indicative of a second physiological parameter of the patient and responsive to a second physiological sensor monitoring said patient, the second physiological parameter different than the first physiological parameter; and a processor responsive to a combination of both of said first and second inputs to generate a diagnostic indication of a patient condition or an alarm output, wherein the processor is configured to; determine trend data based on the second parameter signal; set a variable threshold in response to the trend data; determine a measurement reading of first physiological parameter based on the first parameter signal; compare the measurement reading of the first physiological parameter to the variable threshold; and generate the diagnostic indication or the alarm output based at least in part on said comparison. - View Dependent Claims (2, 3, 4, 5)
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6. A method of monitoring a patient using trend data, comprising:
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obtaining a measurement of a first physiological parameter from a first physiological sensor monitoring said patient; obtaining a measurement of a second physiological parameter from a second physiological sensor monitoring said patient, said second physiological parameter different than said first physiological parameter; and using one or more processors of a physiological monitor; determining trend data based on said second physiological parameter measurement; setting a variable threshold in response to the trend data; comparing said measurement of the first physiological parameter to said variable threshold; and generating a diagnostic indication of a patient condition or an alarm output based at least in part on said comparison. - View Dependent Claims (7, 8, 9, 10)
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Specification