Fever detection apparatus
First Claim
1. A fever detection apparatus for detecting fever of a living being, the fever detection apparatus comprising:
- a pulse oximeter configured to measure;
a plurality of heart rate values being indicative of the heart rate of the living being measured over time, anda plurality of peripheral blood perfusion values being indicative of a blood perfusion in the periphery of the living being measured over time,at least one processor programmed to;
determine temporal heart rate characteristics including a temporal pattern from the heart rate values measured over time,determine temporal peripheral blood perfusion characteristics including a temporal pattern from the peripheral blood perfusion values measured over time,detect a fever of the living being depending on the temporal heart rate characteristics and the temporal peripheral blood perfusion characteristics; and
a display configured to display an indication of the fever when the fever is detected.
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Accused Products
Abstract
The invention relates to a fever detection apparatus for detecting fever of a living being. A heart rate providing unit (3) provides a heart rate value and a peripheral physiological value providing unit (3) provides a peripheral physiological value, wherein a heart rate characteristics determination unit (4) determines heart rate characteristics from the heart rate value and a peripheral characteristics determination unit (5) determines peripheral characteristics from the peripheral physiological value. A fever detection unit (6) detects fever depending on the heart rate characteristics and the peripheral characteristics. Since the heart rate characteristics and the peripheral characteristics are influenced by fever, the fever detection apparatus can be used to reliably and preferentially unobtrusively detect fever.
23 Citations
19 Claims
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1. A fever detection apparatus for detecting fever of a living being, the fever detection apparatus comprising:
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a pulse oximeter configured to measure; a plurality of heart rate values being indicative of the heart rate of the living being measured over time, and a plurality of peripheral blood perfusion values being indicative of a blood perfusion in the periphery of the living being measured over time, at least one processor programmed to; determine temporal heart rate characteristics including a temporal pattern from the heart rate values measured over time, determine temporal peripheral blood perfusion characteristics including a temporal pattern from the peripheral blood perfusion values measured over time, detect a fever of the living being depending on the temporal heart rate characteristics and the temporal peripheral blood perfusion characteristics; and a display configured to display an indication of the fever when the fever is detected. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 10, 11)
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9. The fever detection apparatus as defined in claim wherein the at least one processor is further programmed to apply predefined fever probability rules to the temporal peripheral blood perfusion pattern and the temporal heart rate pattern for determining a fever property value being indicative of the probability of having fever.
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12. A non-transitory computer readable medium storing instructions for performing a fever detection method for detecting fever of a living being, the fever detection method comprising:
with a pulse oximeter, measuring a plurality of heart rate values being indicative of the heart rate of the living being measured over time; measuring a plurality of skin temperature values being indicative of a skin temperature of the living being; measuring a plurality of peripheral blood perfusion values being indicative of a blood perfusion in the periphery of the living being measured over time; with at least one processor, determining a temporal heart rate pattern from the heart rate values measured over time; determining a temporal skin temperature pattern from the skin temperature values measured over time; determining a temporal blood perfusion pattern from the peripheral blood perfusion values measured over time; and detecting a fever of the living being depending on the temporal heart rate pattern, the temporal skin temperature pattern and the temporal blood perfusion pattern based on at least one when the heart rate value increases and the peripheral blood perfusion value decreases in a same time interval; and detecting recovery from fever when the peripheral blood perfusion value increases and the heart rate decreases in a same time interval.
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13. A fever detection apparatus for detecting fever of a living being, the fever detection apparatus comprising:
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a pulse oximeter configured to measure a plurality of heart rate values being indicative of the heart rate of the living being measured over time a plurality of peripheral blood perfusion values being indicative of the peripheral blood perfusion of the living being measured over time and a plurality of skin temperature values being indicative of a skin temperature of the living being measured over time; at least one processor programmed to; measure heart rate values over time; determine a temporal heart rate gradient of the heart rate values measured over time; measure peripheral blood perfusion values over time; determine a temporal peripheral blood perfusion pattern from the peripheral blood perfusion value measured over time; measure skin temperature values over time; determine a temporal skin temperature gradient of the skin temperature values measured over time; and apply predefined fever detection rules to the temporal heart rate gradient, the temporal peripheral blood perfusion pattern, the temporal skin temperature gradient to detect a fever of the living being; and a display configured to display an indication of the fever when the fever is detected. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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Specification