Patent ID: 8303177

Claim:
A pre-heat type clinical thermometer, comprising: a pre-heat box, said pre-heat box comprising an accommodation chamber, an external heating module mounted in one end of said pre-heat box, a first terminal set, a power source means, and a control circuit for controlling supply of electricity from said power source means to said first terminal set and said external heating module; and a thermometer insertable into said accommodation chamber, said thermometer comprising a front neck extending from a body of the thermometer, a sensor tip extending from said front neck, a second terminal set, which is electrically connectable to the first terminal set of said pre-heat box after insertion of said thermometer into said accommodation chamber, a temperature measurement module adapted to transmit a temperature signal from said sensor tip to said control circuit after connection of the second terminal set of said thermometer to the first terminal set of said pre-heat box, and an internal heating module mounted in said front neck between the body and the sensor tip, the internal heating module adapted for heating said front neck subject to the control of said control circuit after insertion of said thermometer into said accommodation chamber; wherein said control circuit electrically connects said power source means to the first terminal set of said pre-heat box and the second terminal set of said thermometer after insertion of said thermometer into said accommodation chamber and connection of the second terminal set of said thermometer to the first terminal set of said pre-heat box when the temperature value of said sensor tip obtained from said temperature measurement module is below a predetermined level, driving said external heating module and said internal heating module to heat said sensor tip and said front neck of said thermometer; said control circuit disconnects said power source means from the first terminal set of said pre-heat box to turn off said external heating module and said internal heating module when the temperature value of said sensor tip obtained from said temperature measurement module surpasses said predetermined level; wherein the first terminal set of said pre-heat box comprises at least a power terminal and at least a signal terminal, and the second terminal set of said thermometer comprises at least a power terminal and at least a signal terminal that are respectively electrically connectable to the at least a power terminal and at least a signal terminal of the first terminal set of said pre-heat box after insertion of said thermometer in said accommodation chamber.