Method of stabilizing an infrared clinical thermometer and the apparatus thereof

#(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

#FIG. 1 is a control flowchart of the heating of the clinical thermometer probe head of the present invention.

#FIG. 2 is a block diagram showing the temperature control system of the present invention.

#FIG. 3 is a perspective view of the heating element of the present invention.

#For the purpose of promoting an understanding of the principles of the invention, reference will now be made to the embodiment illustrated in the drawings. Specific language will be used to describe same. It will, nevertheless, be understood that no limitation of the scope of the invention is thereby intended, alterations and further modifications in the illustrated device, and further applications of the principles of the invention as illustrated herein being contemplated as would normally occur to one skilled in the art to which the invention relates.

#Referring to FIGS. 1, 2, 3, and 4 there is shown the device of stabilizing temperature of a clinical thermometer being mounted onto a probe head 11 of a clinical thermometer 10.

#The probe head 11 contains a heating element 20 and the probe head 11 is a conventional element and further description thereto is not required. The probe head 11 is positioned at the front end of the clinical thermometer 10 and has a funnel shaped body which will contact with the ear and mouth of the human body in the course of temperature-measuring. The cavity of the probe head 11 is provided with an infrared temperature sensor 12, a seat body 12, a temperature-sensitive resistance 14, a guided wave tube 15. The material for the heating element 20 is a conductive material and will produce heat energy if a current passes through the heating element 20. The shape of the heating element 20 is a conic shape and is either or indirectly contact with the enclosed associated components within the interior of the probe head 11, or the partial enclosed components. One end of the heating element 20 is an opening, allowing the infrared ray to enter. The other end of the heating element 20 is pivotally mounted with a cap body 21, allowing the opening up of the cap body 21 for replaceable of components, if there is a need. The heating element 20 is connected to a heating controller 30 which possesses temperature controlling function and by means of a circuit to control the heating element 20 by heating to an appropriate surrounding temperature so as to avoid the rapid exhaustion of the power supply due to the heating of the heating element 20. The heating power source of the heating element 20 is designed in such a way that a separate power source is used and it is different from that used in the measuring system.