CPC G01K 13/20 (2021.01) [A61B 5/01 (2013.01); G01K 7/16 (2013.01); G01K 7/427 (2013.01)] | 16 Claims |
1. A sticking-type deep body thermometer comprising:
a thermometer body;
a sticking member having an adhesive property on a bottom surface of thermometer body;
a first thermal resistor having a predetermined thermal resistance and disposed substantially parallel to the sticking member;
a first temperature sensor configured to detect a first temperature at a first surface of the first thermal resistor adjacent to the sticking member;
a second temperature sensor configured to detect a second temperature at a second surface of the first thermal resistor opposite the first surface;
a deep body temperature detection circuit configured to estimate a deep body temperature based on the first temperature and the second temperature; and
an attachment/detachment sensor configured to detect attachment and detachment of the sticking-type deep body thermometer, wherein the attachment/detachment sensor determines that attachment or detachment of the sticking-type deep body thermometer has occurred when, within a predetermined time, a sign of a temperature difference between the first temperature and the second temperature is inverted and an absolute value of the temperature difference becomes greater than or equal to a first threshold value.
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