JPS63133028A - Electronic thermometer - Google Patents

Abstract

PURPOSE:To enable measurement of temperature at various parts of the human body for a long time, by carrying a circuit element for measuring temperature and a wireless transmission means on a flexible substrate to transmit temperature data by wireless. CONSTITUTION:Electronic parts of an electronic thermometer are covered with a pliable and heat insulating cover member 1 to maintain a flexible construction of the thermometer as a whole. An electronic circuit 4 includes a temperature measuring means for measuring temperature of a temperature sensing section 5 and a wireless transmission means for transmitting temperature data measured wireless. Temperature data stored in the electronic circuit 4 are transmitted outside through an antenna 2. The electronic thermometer thus obtained is stuck directly on skin with a double-sided adhesive tape 7.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an electronic thermometer that measures body temperature by being attached to a temperature measuring site and wirelessly transmits temperature measurement data.

[Prior art] Conventional portable electronic thermometers have a temperature-sensing part in the shape of a rod, and the temperature is measured by inserting and fixing the temperature-sensing part into a specific area such as the armpit, rectum, or mouth. Ta. Therefore, in addition to lacking in flexibility, it is difficult to fix the temperature sensing portion to the body surface due to its shape when measuring the temperature of other parts, such as the body surface.

Furthermore, because of their inflexible structure, conventional electronic thermometers are not suitable for measuring body temperature over a long period of time and transmitting the measurements one after another.

[Purpose of the Invention] The present invention has been accomplished without solving the above-mentioned drawbacks of the prior art.The purpose of the present invention is to fit the temperature measurement data to any part of the body surface at any time during temperature measurement. The company provides electronic thermometers that transmit wirelessly.

Another object of the present invention is to measure various parts. The purpose of the present invention is to provide an electronic thermometer that can last for a long time.

[Summary of the Invention] In order to achieve the above object, the electronic thermometer of the present invention includes a power supply battery, a circuit element for temperature measurement, a wireless transmission means for wirelessly transmitting temperature data measured by the circuit element, and a wireless transmission means for wirelessly transmitting temperature data measured by the circuit element. The general outline of the device is to include a flexible substrate on which members are mounted, and a flexible and heat-insulating covering material that covers each of the members except for the temperature sensing portion.

Preferably, one aspect thereof is that the covering material is provided with an adhesion means for adhering the electronic thermometer to the measurement site.

Preferably, one aspect of the circuit element is that the circuit element includes a temperature-sensing section that is sensitive to body temperature, and a temperature measuring means that measures the body temperature based on body temperature information from the temperature-sensing section.

[Embodiments] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1(a) is a plan view, FIG. 1(b) is a sectional view, and FIG. 1(C) is a bottom view.

In FIG. 1(a), reference numeral 1 denotes a flexible and heat-insulating covering member, in which the electronic components of the electronic thermometer are encased to maintain the flexible structure of the thermometer as a whole. As such, urethane foam is used. Reference numeral 2 denotes an antenna for transmitting temperature data accumulated by the thermometer to the outside, and is covered with a covering member to make the structure of the electronic thermometer liquid-tight. 3 is preferably a replaceable or rechargeable power source, and preferably a film type lithium battery (LB).

In FIG. 1(b), 4 is a general term for the electronic circuit shown in FIG. 2, which includes a temperature measuring means. 5 is a temperature sensing part;
This is a chip thermistor (Rth) whose resistance value changes according to temperature changes. 6 flexibly holds between each electronic component,
The electrically connected flexible board 7 is a disposable pull type double-sided tape that can be attached directly to the skin on the body surface. Polyamide, polyester, polyparabanic acid, and glass epoxy are used as the flexible substrate. The double-sided tape 7 allows the thermometer, which has a generally flexible structure consisting of the flexible substrate 6 and the covering member 1, to be attached to the body surface while conforming to the shape of the desired temperature measurement site.

In FIG. 1(C), the temperature sensing part of the chip thermistor 5 comes into contact with the body surface through an opening 7a provided at approximately the center of the tape 7, and detects the temperature.

At that time, the heat insulating covering member 1 effectively blocks the external part,
Enables accurate temperature measurement of the body surface. Furthermore, various diameters of electronic thermometers can be manufactured in consideration of the temperature measuring part, handling of the connector, etc.

FIG. 2 is a block diagram of the electronic thermometer according to the embodiment.

It should be noted that the same components as in FIGS. 1(a) to (C) are given the same numbers and their explanations will be omitted. In FIG. 2, 41 is an oscillation circuit that generates the reference clock signal Fs, X is a crystal oscillator for frequency stabilization, and 42 is the timing for dividing the reference clock signal Fs to generate the temperature data sampling signal SG. It is a circuit. 43 is each sampling signal SG
This is an A/D converter that detects the temperature-sensitive resistance Rth of the chip thermistor 5 at the timing of , and converts it into a digital value. 44 is a D/A converter that converts the temperature data converted into a digital value into an analog value, and the timing of this conversion is determined by the conversion command signal C generated by the timing circuit 42.
This is done by S. 45 is a PWM modulation circuit that modulates the pulse width of D/A converted count data;
is a transmitting circuit that amplifies the PWM modulated signal, and the amplified signal is transmitted from the antenna 2 to the receiving station. The transmitted temperature measurement data is received by the reception time shown in FIG.
2, it is returned to the count value, and is taken into the CPU 53 and processed.

[Effects of the Invention] Since the present invention is configured as described above, body temperature is measured at any time with a thermometer that fits the measurement site, and this temperature measurement data is wirelessly transmitted, so that electronic measurement of body temperature data over a long period of time is possible. becomes possible.

[Brief explanation of the drawing]

FIG. 1(a) is a plan view of an electronic thermometer according to an embodiment of the present invention, FIG. 1(b) is a sectional view taken along the line (b)-(b) of FIG. 1, and FIG. 1(c) is an electronic FIG. 2 is a plan view of the thermometer, FIG. 2 is a block diagram of the electronic thermometer of the embodiment, and FIG. 3 is a block diagram showing an example of a wireless reception circuit. In the figure, 1... Covering member, 2... Antenna, 3...
Film type lithium battery (LB), 4... electronic circuit,
5... Chip thermistor (Rth), 6... Flexible substrate, 7... Double-sided tape.

Claims (3)

[Claims] (1) A power supply battery, a circuit element for temperature measurement, a wireless transmission means for wirelessly transmitting temperature data measured by the circuit element, a flexible board on which these members are mounted, and the above-mentioned components except for the temperature sensing section. An electronic thermometer characterized by comprising a flexible and heat-insulating covering material that covers each member. (2) The electronic thermometer according to claim 1, wherein the covering material is provided with an adhesion means for adhering the electronic thermometer to the measurement site. (3) The circuit element is characterized in that it comprises a temperature-sensing section that is sensitive to body temperature, and a temperature measuring means that measures the body temperature based on body temperature information from the temperature-sensing section. Electronic thermometer as described in section.