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Electronic clinical thermometer

  • US 7,284,904 B2
  • Filed: 03/18/2005
  • Issued: 10/23/2007
  • Est. Priority Date: 04/11/2001
  • Status: Expired due to Term
First Claim
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1. An electronic clinical thermometer comprising:

  • a constant-temperature heater for providing a specified temperature;

    a temperature sensor for measuring temperature;

    a thermally insulating member having a known thermal conductivity and being disposed as a solid layer between said temperature sensor and said constant-temperature heater;

    a controller for controlling said temperature sensor and said constant-temperature heater to make measurements at specified time intervals;

    a memory for storing said specified temperature and measured values obtained by said temperature sensor; and

    a calculator for calculating estimated temperature at a specified internal body positionby using said specified temperature, said thermal conductivity and the measured values obtained only by said temperature sensor.

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