JPS6114531A - Electronic clinical thermometer - Google Patents

Abstract

PURPOSE:To make inform the convergence of temperature according to measurement positions by providing a timer which clocks two kinds of time from reference time and a measurement position switching means which switches two measurement positions selectively. CONSTITUTION:The electronic clinical thermometer 1 consists of a liquid crystal display device 3, power switch 4, under-tongue and underarm changeover switch 5, temperature sensor 6, CPU8, reference oscillator 9, timer 10, buzzer 11, etc. Then when the power switch 4 is turned on and the switch 5 is placed at the under-tongue position, the CPU8 sets the timer 10 to a one-minute mode to take temperature measurement, and the temperature signal generated by the temperature sensor 6 is processed through an A/D conveter 7 and the CPU8 to display the measured temperature on a display device 3. Further, the timer 10 enters a time-up state one minute after the starting point of the measurement and the buzzer 11 sounds, so the bodily temperature is known from the temperature displayed on the display device 3. Consequently, the correct bodily temperature corresponding to a measurement position is measured.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Industrial Application Field The present invention is applicable to electronic thermometers, particularly for sublingual and axillary thermometers.
The present invention relates to an electronic thermometer that can selectively measure two measurement sites.

(b) Conventional technology In general, electronic thermometers measure the temperature at each sample timing in the temperature measuring section, calculate the highest temperature among the measured temperatures, and
The maximum temperature is updated and displayed on the display. Also,
When the sensor of the temperature measurement unit is attached to the measurement site and measurement begins, the detected temperature is initially low, and the detected temperature, that is, the measured temperature, increases exponentially over time and eventually converges to a predetermined value. This convergence value is usually read as body temperature.

Some types of electronic thermometers determine the point of convergence when a certain period of time has elapsed from a reference point, for example, when the power switch is turned on, and activate a buzzer or other notification means to alert the person taking the test. There is a system that notifies the user of the problem and prompts the reader to read the display.

This type of electronic thermometer can be used regardless of the measurement site.
- Typically, when a certain period of time has elapsed from a reference point in time, the notification means is activated.

(c) Problems to be Solved by the Invention As mentioned above, in the conventional electronic body temperature needle, convergence is determined after a certain period of time has elapsed from the reference point in time, and the notification means is driven.Strictly speaking, for example, The time taken to reach equilibrium temperature after starting measurement is different between the sublingual and the axillary areas, and the sublingual area usually approaches equilibrium faster.

Therefore, when the completion of measurement is notified at a fixed time from the reference time as in the conventional method, there is a problem that a slight measurement error occurs depending on the measurement site.

An object of the present invention is to provide an electronic thermometer that can notify temperature convergence, that is, the end of measurement, depending on the measurement site, such as sublingual or armpit.

(d) Means for solving the problems In order to solve the above problems, the electronic thermometer of this invention has the following features:
A temperature measurement unit, a display device that displays the measured temperature, a first timer that measures a first time from a reference time, and a second time that measures a second time from the reference time (first time>second time). a second timer for measuring time, a notification means for notifying measurement convergence;
and a measurement site switching means for switching and selecting a measurement site and a second measurement site, and when the measurement site switching means is switched to the first measurement site, the measurement site switching device switches the measurement site when the first timer times up. When the means is switched to the second measurement site, the notification means is driven each time the second timer times up.

(E) Function In this electronic thermometer, when the measurement site switching means is switched to the first measurement site, for example, under the tongue, the notification means is activated when the first time elapses from the reference time after starting the measurement, The temperature convergence, that is, the end of the measurement is notified in a relatively short time. On the other hand, if the measurement site switching means is switched to the second measurement site, for example, the armpit, the notification means is activated at the second time from the reference time, that is, the measurement ends after a relatively long period of time. You will be notified.

(f) Example Hereinafter, this invention will be explained in more detail with reference to Examples.

FIG. 1 is an external plan view of an electronic thermometer showing one embodiment of the present invention.

In the same figure, the electronic thermometer 1 is equipped with a liquid crystal display 3 and a power switch 4 on the top surface of a case 2, and also has a sublingual thermometer that can switch between sublingual (first measurement site) and underarm (second measurement site).・An armpit switching switch/notch 5 is provided.

FIG. 2 is a circuit diagram of the electronic body temperature needle.

The temperature sensor 6 includes a temperature measuring element such as a thermistor, and converts temperature into an electrical signal. A/D converter 7 is temperature sensor 6
The electrical signal from the controller is converted into a digital signal and input to the CPU 8. The CPU 8 has a temperature measurement function that captures the temperature signal from the A/D converter 7 at each sample timing, as well as a function that reads the on/off status of the sublingual underarm selector switch 5, and a function that reads the temperature signal from the A/D converter 7 at different timings depending on the read signal state. It has a function to set the temperature on a timer, and a function to display the measured temperature on the display 3. Although not shown, the CPU 8 has a built-in memory for storing data for calculations. The reference oscillator 9 supplies the basic clock signal for operating the CPU 8 to the CPU 8, and also inputs the clock signal to the timer 10, which counts this clock signal to count time. It looks like this. The timer 10 is configured to set a timer time by a 1-minute set signal or a 3-minute set signal from the CPU 8, and when the count value reaches the set time, the timer 10 beeps and the buzzer 11 sounds. .

Next, the operation of the thermometer of the above embodiment will be explained with reference to the flowchart shown in FIG. When the power switch 4 is turned on and the operation starts, first in step STI, the on/off status of the sublingual/underarm switching switch 5 is read.

Next, in step ST2, it is determined whether the mode is sublingual mode.

If the sublingual/underarm switch 5 is turned on under the tongue, this determination will be YES, and the timer 10 will then be set to 1.
Set it to minutes (Step 7, 5T3). Subsequently, the temperature is measured using the temperature control knob 5T4). That is, the temperature signal detected by the temperature sensor 6 is transmitted via the A/D converter 7,
The data is taken into the CPU 13 and stored in the built-in memory.

The measured temperature is then displayed on the display 3 (step 5T5). In the body temperature needle, the displayed temperature is always updated and displayed at the highest value, but in some cases, the real value at that point in time may be displayed.

After the temperature is displayed, it is determined whether the timer 10 has timed up (step 5T6). At the beginning of the measurement, one minute has not yet passed, so this judgment is No and step S is performed.
The process returns to T4, and temperature measurement and temperature display are repeated at each sample timing. Eventually, when one minute has elapsed from the measurement start time, the timer 10 will time-amplify, and in the sublingual measurement, the bubble temperature has reached the convergence point, so the decision in step ST, 6 will be YES, and then the buzzer 11 will be turned on. is turned on (step 5T7).

As a result, the buzzer 11 emits a beeping sound, and the person taking the measurement hears the beeping sound to know that the measurement has ended, and then sees the temperature displayed on the display 3 and measures the body temperature. If the measurement site is under the armpit and the sublingual/underarm switch 5 is turned on under the armpit, the determination of "sublingual mode" in step ST2 is No, and in this case, timer 1 is set in step ST8.
Set 0 to 3 minutes. After that, measure the temperature (step 5T4) and display the temperature (step 5T5) in the same way as when measuring the sublingual area.
is repeated until the timer 10 completes the time amplification.

Then, when 3 minutes have passed from the start of measurement, step ST6
The judgment of “Is the timer time up?” is YBS,
The buzzer 11 is sounded in the same way as in the sublingual case. However, in the case of underarm measurements, the end of measurement is announced 1 minute after the start of measurement, whereas in the case of sublingual measurements, the end of measurement is announced 3 minutes after the start of measurement. You will be notified of the end.

In other words, the convergence time is set in accordance with the measurement site.

In the above embodiment, the timer is set to tick every 1 minute and 3 minutes, but this time may be set to any number of minutes depending on the characteristics of the measurement site. Furthermore, in the above example, the explanation was made assuming the case where two measurement sites, sublingual and underarm, are switched, but this invention can also be applied to cases where measurement is switched between two other measurement sites. Needless to say.

(g) Effects of the Invention According to the electronic thermometer of the present invention, two measurement sites, such as sublingual and underarm areas, can be measured with one thermometer. Also,
Since the measurement time is selected according to the plurality of measurement sites, it is possible to perform measurement with an efficient measurement time that is appropriate for the measurement site.

[Brief Description of the Drawings] Fig. 1 is an external plan view of an electronic thermometer showing an embodiment of the present invention, Fig. 2 is a circuit block diagram of the electronic thermometer, and Fig. 3 is an operation of the electronic thermometer. It is a flowchart for explaining. 3: Display device, 5: Sublingual/underarm switching switch, 6: Temperature sensor, 8: CPU, 10: Timer, 11: Buzzer patent applicant Tateishi Electric Co., Ltd. agent
Patent Attorney Shigeru Nakamura Figure 1 Figure 2

Claims (1)

[Claims] (1) A temperature measurement unit, a display that displays the measured temperature, a first timer that measures a first time from a reference time, and a second time from the reference time (first time < second time); time of)
a second timer for timing, a notification means for notifying the measurement convergence, and a measurement part switching means for switching and selecting the first measurement part and the second measurement part, and the measurement part switching means is for the first measurement. When the measurement area is switched to the second measurement area, the measurement area switching means drives the notification means when the first timer times up and when the measurement area is switched to the second measurement area, the second timer times up. An electronic thermometer characterized by: