JP5330166B2 - Electronic thermometer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electronic clinical thermometer which is easy to take out from a storage case and easy to hold, and by which a temperature measuring section (metal cap) where the temperature sensor of the electronic clinical thermometer is stored can be properly applied and held in a temperature measuring site in the underarm. <P>SOLUTION: The rod shaped electronic clinical thermometer, the temperature measuring site of which is the underarm, includes a body section, a temperature measuring section and a temperature display section, wherein a recess section is provided on the side surface of the body section. Further, a plurality of minute projections are provided in the recess section. The display section is provided with various notification functions such as an error notification function, an out of range of the temperature to be used notification function, an out of action notification function, a predicted action notification function and a battery voltage decrease notification function. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to an electronic thermometer. In particular, it relates to an electronic thermometer that measures the temperature of the armpit.

  In the conventional electronic thermometer, in Japan, the shape of the mercury thermometer is mainly followed, the body temperature measurement part is under the armpit (armpit), and the guard / caregiver is the probe part of the rod-shaped electronic thermometer (metal cap part) Is measured under the armpit (armpit) of the person being measured, or the person himself / herself measures the body temperature by sandwiching the probe part (metal cap part) of the rod-shaped electronic thermometer under the armpit (armpit) (patent) Document 1: Japanese Patent Publication No. 3-24615).

Japanese Patent Publication No. 3-24615

  However, in such an electronic thermometer, especially in the case of an elderly person or thin body shape, if the temperature measurement part (metal cap part) is not properly attached to and held in the measurement site and no error notification is given, the body temperature is lowered. May be measured.

  The present invention has been made in view of the above-mentioned problems, and it is easy to take out and hold the electronic thermometer from the storage case, and the temperature measuring unit (metal cap) in which the temperature sensor of the electronic thermometer is stored measures the body temperature. The purpose is to provide an electronic thermometer that can be appropriately attached to and held in a site.

In order to achieve the above object, an electronic thermometer according to the present invention is a rod-shaped electronic thermometer having a measurement site under the armpit and having a main body, a temperature measuring section, and a temperature display section, on both sides of the main body . An electronic thermometer provided with a recess on a side surface, wherein the main body is formed of a thermoplastic material having a length of 125 to 150 mm, a thickness of 8 to 12 mm, a width of 15 to 18 mm, and impact resistance and chemical resistance. The concave portion has a width of 60 to 70% of the thickness of the main body portion continuously across the end portion of the concave shape provided with the power ON / OFF switch, and the length of one side is the length of the main body portion. It is characterized by being provided with 40 to 40% of the depth and a depth of 2 mm .

  According to the electronic thermometer of the present invention, it is easy to take out and hold from the storage case, and the temperature measuring part (metal cap) in which the temperature sensor of the electronic thermometer is stored can be appropriately mounted and held on the body temperature measurement site.

It is a figure which shows preferable embodiment of the electronic thermometer of this invention. It is a block diagram of the electronic thermometer shown in FIG.

  Hereinafter, an embodiment of the present invention will be described in detail by way of an example of an actual measurement type electronic thermometer with reference to the drawings. However, the constituent elements described in this embodiment are merely examples, and are not intended to limit the scope of the present invention to these, but are based on an equilibrium temperature prediction formula equipped with an actual measurement type electronic thermometer and an actual measurement mode. Needless to say, it can be applied to an electronic thermometer.

(Example) <Configuration of electronic thermometer>
1A is a front view of an electronic thermometer in the embodiment, FIG. 1B is a rear view, FIG. 1C is a front view of a storage case, and FIG. 2 is a functional block diagram.

In FIG. 1, the electronic thermometer 1 has a total weight of about 20 to 30 g, stores a temperature sensor (not shown) formed of a main body 2 and a thermistor, and protects the temperature sensor with a metal cap in a liquid-tight manner. A temperature measuring unit 7, a curve shape unit 3 for holding the temperature measuring unit 7, a display unit 4 formed of a liquid crystal or the like for displaying the measured body temperature value, and a switch 5 for turning on / off the power by long pressing for about 2 seconds It has. The display unit 4 is composed of an LCD and includes a “previous value display” mark 4a, a “prediction” mark 4b, a “battery voltage drop” mark 4c, and a “body temperature value display unit” 4d. An organic EL may be used instead of the LCD.

The main body 2 has a length of about 125 to 150 mm, a thickness of about 8 to 12 mm, a width of about 15 to 18 mm, a low thermal conductivity, and is a thermoplastic material having impact resistance and chemical resistance. It is made of a series resin (high impact polystyrene, ABS resin), a polyolefin series resin (polypropylene, polyethylene) or the like. Moreover, in order to give an antibacterial property, you may shape | mold so that a silver phosphate silver compound may be contained about 1 to 2.5 weight%. The display unit 4 is made of a transparent thermoplastic resin, and is preferably molded in two colors with the main body unit 2. The switch 5 is preferably a tact switch. By doing so, it becomes possible to disinfect most of the electronic thermometer 2 with alcohol or the like.

The side surfaces on both sides of the main body 2 are continuously 60 to 70% of the thickness of the main body 2 with the end 2d interposed therebetween, and the length of one side is 40 to 40 of the length of the main body 2. %, And a recess (groove) 2a having a depth of about 2 mm is provided. Preferably, the concave portion (groove portion) 2a is provided with a minute protrusion 2b. In addition, the back surface is provided with a convex portion or a plurality of minute protrusions 2c at an appropriate position (preferably, a position 60 to 100 mm away from the temperature measuring portion 7).

This makes it easy to take out and hold the storage case 3 without compromising the aesthetics of the design, and the temperature measuring unit (metal cap 7) in which the temperature sensor of the electronic thermometer is stored is suitable for the body temperature measurement site under the armpit An electronic thermometer that can be attached to and held in Preferably, the switch 5 is also provided in the concave portion 2 a at the tip of the main body 2 opposite to the temperature measuring unit 7. By doing so, the switch 5 is not erroneously pressed during body temperature measurement.

FIG. 2 is a functional block diagram showing the configuration of the electronic thermometer 1 of the present embodiment. The electronic thermometer 1 calculates a measured temperature or a predicted temperature from the temperature measurement unit 7, a digital quantity measured by the temperature measurement unit 7, and displays a measurement result while controlling the electronic thermometer 1. And a display unit 4 such as a liquid crystal. The calculation control unit (CPU) 12 is based on an EEPROM 12c storing parameters necessary for body temperature measurement, a RAM 12a for storing measured temperatures in time series, a ROM 12b storing a program for predicting and calculating the body temperature of the subject, and the like. The entire electronic thermometer 1 is controlled.

  The measurement temperature unit 7 includes a thermistor, a capacitor, a temperature measurement CR oscillation circuit, and the like, and outputs the temperature detected by the thermistor as a transmission signal. The output signal that has been output is counted by a counter and is output as a digital quantity. At least the thermistor constitutes the temperature measuring unit 7 which is liquid-tightly protected with a stainless steel metal cap.

  The arithmetic control unit 12 includes a timer (not shown) that measures the ON time of the digital signal output from the temperature measuring unit 7.

<Flow of temperature measurement process in electronic thermometer>
Next, the flow of the body temperature measurement process in the electronic thermometer will be described. In addition, although the flow of the body temperature measurement process of the electronic thermometer 1 of an equilibrium temperature prediction type | formula is demonstrated here, this invention is not limited to this, The electronic thermometer of a measurement type | formula and the electronic thermometer of the type which uses prediction / measurement together are demonstrated. Is also applicable.

  When mounted on the subject's armpit, the electronic thermometer 1 starts temperature measurement at a predetermined cycle of sampling timing, and predicts the body temperature of the subject based on the temporal change of the acquired temperature data. To do. Arithmetic processing is executed in an arithmetic processing unit (not shown) constituted by a microcomputer.

  When the power ON / OFF switch 5 of the electronic thermometer 1 is turned on for about 2 seconds, the electronic thermometer 1 is initialized, and all segments of the display unit 4 are lit during that time. Thereafter, temperature measurement by the thermistor is started. For example, the calculation processing unit calculates temperature data at a predetermined interval, for example, every 0.5 seconds.

Next, it is determined whether a body temperature measurement start condition is satisfied. Specifically, the degree of increase from the value of the temperature data calculated by the previous temperature measurement (that is, the value of the temperature data 0.5 seconds before) has become a predetermined value (for example, 1 ° C.) or more. Judge whether or not.

Next, when it is determined that the degree of increase is equal to or greater than a predetermined value, it is determined that the body temperature measurement start condition is satisfied, and the timing at which the temperature data is measured is used as a reference point for predictive body temperature calculation (t = 0). Set as. That is, in the electronic thermometer 1, when a rapid temperature rise is measured, it is considered that the subject wears the electronic thermometer 1 under the armpit.

Next, when it is determined that the body temperature measurement start condition is satisfied, temperature data acquisition is started. Specifically, the output temperature data and the timing at which the temperature data is measured are stored in the RAM 12a as time series data. Next, using the stored temperature data, a predicted body temperature is calculated according to a predetermined prediction formula.

Next, after a lapse of a predetermined time (for example, 25 seconds) from the reference point (t = 0), the predicted value in the calculated fixed section (for example, t = 25 to 30 seconds) is set as a predetermined prediction establishment condition. It is determined whether or not the above is satisfied. Specifically, it is determined whether or not the temperature is within a predetermined range (for example, 0.1 ° C.).

Next, when it is determined that the prediction establishment condition is satisfied, the temperature measurement is ended, and a sound indicating that the calculation of the predicted body temperature is completed is output from a speaker (not shown), and the calculated prediction is displayed on the display unit 4. The body temperature is displayed, and the power is automatically turned off after a predetermined time has elapsed. A display mode changeover switch of the display unit 4 may be provided so that the body temperature value trend for the past 24 hours and the body temperature value trend for the past 7 days are displayed on the display unit 4.

  On the other hand, when it is determined that the prediction establishment condition is not satisfied, it is determined whether a predetermined time (for example, 45 seconds) has elapsed from the reference point (t = 0), and when it is determined that it has elapsed, The temperature measurement is forcibly terminated. When the forced termination is performed, the predicted body temperature calculated at that time is displayed on the display unit 4. On the other hand, when it is determined that the body temperature measurement end instruction has been received, the power supply from the battery (power supply unit) 13 is automatically turned off.

Alternatively, a strain gauge may be provided without providing the power ON / OFF switch 5, and a pressure may be applied to the strain gauge when the strain gauge is mounted and sandwiched at a predetermined position so that the power is turned on.

In addition, as shown in FIG.1 (d), the display part 4 has various notification functions, and is improving the usability of a user.
(Error notification function)
When the arithmetic processing unit determines that the temperature is poor, an “E” mark is displayed on the body temperature value display unit 4d of the display unit 4 together with a buzzer sound.
(Operating temperature range outside notification function)
When the arithmetic processing unit determines that the use temperature is 30 ° C. or less, the “Lo” mark is displayed on the body temperature value display unit 4 d of the display unit 4. When the use temperature is determined to be 42 ° C. or more, the body temperature value of the display unit 4 A “Hi” mark is displayed on the display unit 4d.
(Inoperable notification function)
When the operation processing unit determines that the operation is abnormal, an “EE” mark is displayed on the body temperature value display unit 4 d of the display unit 4.
(Predictive action notification function)
When the arithmetic processing unit determines that the prediction operation is being performed, the prediction mark 4d of the display unit 4 is turned on.
(Battery voltage drop notification function)
When the arithmetic processing unit determines that the battery voltage has become equal to or lower than the predetermined value, only the “battery voltage drop” mark 4c blinks or lights up, “previous value display” mark 4a, “prediction” mark 4b, “body temperature value display unit” 4d. Turn off the light.

1 Electronic thermometer, 2 body part, 2a recessed part, 4 display part, 7 temperature measuring part

Claims (1)

The measurement part is a armpit, a main body part, a temperature measuring part, a rod-shaped electronic thermometer provided with a temperature display part, an electronic thermometer provided with recesses on both side surfaces of the main body part,
The main body is formed of a thermoplastic material having a length of 125 to 150 mm, a thickness of 8 to 12 mm, a width of 15 to 18 mm, impact resistance, and chemical resistance, and the recess has a power ON / OFF switch. Continuously provided with a width of 60 to 70% of the thickness of the main body, the length of one side being 40 to 40% of the length of the main body, and a depth of 2 mm across the provided recess-shaped end. An electronic thermometer characterized by that .

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