Thermal measuring and testing – Temperature measurement – By electrical or magnetic heat sensor
Reexamination Certificate
2001-07-06
2003-10-14
Guiterrez, Diego (Department: 2859)
Thermal measuring and testing
Temperature measurement
By electrical or magnetic heat sensor
C374S131000, C374S132000
Reexamination Certificate
active
06632016
ABSTRACT:
BACKGROUND OF THE INVENTION
(a) Field of the Invention
The present invention relates to a method of stabilizing a clinical thermometer and the apparatus thereof, and in particular, a method to stabilize the surrounding temperature of the cavity of the clinical thermometer probe head so as to avoid precision of measurement by the clinical thermometer as a result of unstable surrounding temperature.
(b) Description of the Prior Art
The cavity of the probe head of a common infrared clinical thermometer contains a guided wave tube, an infrared temperature sensing element and other related components so as to provide function of temperature measurement. However, the guided wave tube or other associated components are made from metal as the heating rate of metal is faster and the heat dissipation is also fast, and this provides a balance to the surrounding temperature, i.e., the surrounding temperature is evenly distributed along the tube body of the guided wave tube, however, this is not a stable temperature (some time at a higher temperature, and some time at a lower temperature). This temperature will affect the accuracy of the detected temperature data, and the infrared temperature-sensing element of the conventional infrared clinical thermometer will sense the temperature of the surrounding, and the measured temperature is thus not accurate. Although there is guided wave tube made from plastic material, the surrounding temperature cannot be stabilized to provide a specific surrounding temperature. Therefore, after the infrared temperature sensing element is used to measure the temperature of the human body, the infrared temperature sensing element and the associated component in the course of temperature measuring are always affected by the change of the surrounding temperature, and in actual, the measured temperature is always not stable and the measured temperature may not be accepted by the user. Accordingly, it is an object of the present invention to provide a method of stabilizing a clinical thermometer and the apparatus thereof which mitigates the above drawbacks.
SUMMARY OF THE INVENTION
Accordingly, it is an object of the present invention to provide a method of stabilizing a clinical thermometer, comprising the steps of pre-heating the surrounding temperature to a pre-set temperature prior to using the clinical thermometer for measuring temperature; and providing compensational temperature by way of heat energy by a control circuit such that the surrounding temperature is maintained and stabilized at the pre-set temperature so as to avoid the change of the surrounding temperature from affecting the measured temperature.
Yet another object of the present invention is to provide a stabilizing device for a clinical thermometer comprising a clinical thermometer probe head which is made from a material capable of producing heat energy; and a heating controller connected to the probe head which provides heating for the probe head prior to temperature measuring to the pre-set surrounding temperature, thereby the heating controller causes the surrounding temperature to maintain at a constant and stable temperature such that the precision of measuring is accurate.
The foregoing objects and summary provide only a brief introduction to the present invention. To fully appreciate these and other objects of the present invention as well as the invention itself, all of which will become apparent to those skilled in the art, the following detailed description of the invention and the claims should be read in conjunction with the accompanying drawings. Throughout the specification and drawings identical reference numerals refer to identical or similar parts.
Many other advantages and features of the present invention will become manifest to those versed in the art upon making reference to the detailed description and the accompanying sheets of drawings in which a preferred structural embodiment incorporating the principles of the present invention is shown by way of illustrative example.
REFERENCES:
patent: 4183248 (1980-01-01), West
patent: 4673300 (1987-06-01), Wilhelmson et al.
patent: 4790324 (1988-12-01), O'Hara et al.
patent: 6036361 (2000-03-01), Gregory et al.
patent: 6250802 (2001-06-01), Dotan
patent: 6495806 (2002-12-01), Siefert
patent: 2000225096 (2000-08-01), None
Chen Min-Ying
Chen Sanlian
De Jesús Lydia M.
Guiterrez Diego
Lei Leong C.
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