Infrared clinical thermometer and temperature state estimation method, information notification method, and measurement operation method thereof
Temperature states of a clinical thermometer body and an environment are estimated by temperatures measured by a first temperature sensor integrally formed together with an infrared sensor arranged to the distal end of a probe and a second temperature sensor arranged on the bottom side of a probe holder, and processes suitable for the respective temperature states are performed. An estimation error or the reliability of an estimation value is calculated by the temperatures to notify a user of the estimation error or the reliability by an LCD or the like.
1. A temperature state estimation method for a body of an infrared clinical thermometer, comprising:
measuring temperatures of portions of the body of the infrared clinical thermometer having different thermal environments in the infrared clinical thermometer, wherein at least one of the temperatures of said portions includes a temperature state of the body of the infrared clinical thermometer;
estimating said temperature state of the body of the infrared clinical thermometer based on the measured temperatures; and
outputting an indication of said estimated temperature state.
2. The temperature state estimation method according to claim 1 , further comprising calculating an environment temperature change index monotonously changed with respect to a change in environment temperature based on the measured temperatures of the portions having different thermal environments in the infrared clinical thermometer, wherein said temperature state is estimated based on said environment temperature change index.
3. The temperature state estimation method according to claim 2 , further comprising calculating change patterns of the measured temperatures of the portions having different thermal environments in said infrared clinical thermometer, wherein the temperature state is estimated by the environment temperature change index and the change patterns of said measured temperatures.
4. An information notification method in an infrared clinical thermometer, comprising:
measuring temperatures of portions of a body of the infrared clinical thermometer having different thermal environments, wherein said measuring is performed by at least one infrared detection unit temperature measurement means and at least one other temperature measurement means in the infrared clinical thermometer, wherein at least one of the temperatures of said portions includes a temperature state of the body of the infrared clinical thermometer, wherein the at least one infrared detection unit temperature measurement means is arranged to measure temperature near the infrared detection unit and the at least one other temperature measurement means is arranged to measure temperature of an interior portion of the body of the infrared clinical thermometer;
estimating a temperature state of at least one of the body of said infrared clinical thermometer and an environment in which the infrared clinical thermometer is placed based on the measured temperatures; and
outputting an indication of said estimated temperature state.
5. The information notification method according to claim 4 , further comprising:
calculating an environment temperature change index which is an index monotonously changed with respect to a change in environment temperature and which is related to an estimation error of a body temperature of the infrared clinical thermometer based on the measured temperatures of the portions having different thermal environments in said infrared clinical thermometer, wherein the temperature state is estimated based on the environment temperature change index and the estimated temperature state is outputted such that said temperature state is related to said estimation error of the body temperature of the infrared clinical thermometer.