JPH10234677A - Thermometer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a user friendly thermometer with which the temperature of the tympanum can surely be caught and a body temperature can be exactly measured by reporting whether or not an infrared sensor photodetects an infrared ray emitted from a proper body temperature detecting position including the tympanum. SOLUTION: An analog signal outputted from an infrared sensor 20 is amplified by an amplifier 30, inputted to a control part 40, converted to a digital signal by an A/D converting part 41 and applied through an I/O part 42 to a body temperature arithmetic part 44. When a measuring switch 50 is pressed, based on the output signal from the infrared sensor 20, the body temperature of a person to be measured is continuously found by the body temperature arithmetic part 44, and a body temperature signal is applied to an alarm tone generating part 60 and a discriminating part 45. When it is discriminated that the infrared sensor 20 photodetects the infrared ray emitted from the proper body temperature position, a body temperature signal corresponding to the temperature of the tympanum is applied to a body temperature display part 70 by the discriminating part 45 and when it is discriminated that the infrared ray is not photodetected, the disorder of measurement is displayed on the body temperature display part 70.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention measures the body temperature of a subject by inserting a probe into the ear canal of the subject, detecting infrared rays emitted from the eardrum or a peripheral area including the eardrum by an infrared sensor. Related to thermometer.

[0002]

2. Description of the Related Art As a thermometer for measuring the body temperature of a subject without contact, a probe is inserted into the ear canal of the subject, and is radiated from the eardrum or the periphery including the eardrum and guided through the probe. Infrared light is detected by an infrared sensor,
A thermometer that obtains the body temperature of the subject based on the detected value is conventionally known (for example, JP-A-61-117422). Here, the reason why the measurement target area is narrowed to the eardrum or the periphery including the eardrum is that, in the external auditory canal, FIG.
As shown in the figure, the temperature of the eardrum is the highest, and as the distance from the eardrum to the outside of the ear increases, the outside air temperature (T01, T02, T0) increases.
This is due to the temperature distribution that the temperature in each part of the ear canal decreases due to the influence of 3), and when the body receives the infrared radiation radiated from the area distant from the eardrum, the original body temperature (eardrum temperature) This is because a lower body temperature value will be indicated. Therefore, when measuring the body temperature of the subject using such a thermometer, it is important to stably and accurately measure the temperature of the eardrum, or to receive only infrared rays radiated from the periphery including the eardrum by the infrared sensor. Become.

[0003]

However, the shape of the ear canal and the area of the eardrum vary greatly depending on the subject, and such a thermometer always captures the eardrum or a peripheral region including the eardrum in the light receiving field of the infrared sensor. It is difficult. In this specification, such a position “the eardrum or the surrounding area including the eardrum” is defined as an “appropriate body temperature detection position” and will be described in detail.

Therefore, various techniques have been conventionally proposed to solve such a problem. For example, JP-A-8-6
In Japanese Patent No. 2043, after the measurement is started, the peak value of the measured temperature is stored every time the peak value is updated, and after the peak value is updated, the peak value is updated even after a certain number of consecutive measurements. A technique is disclosed in which the peak value is regarded as the eardrum temperature when there is no such temperature, and this is displayed as the measured body temperature.

However, in this method, the peak value is regarded as the eardrum temperature based on the fact that the eardrum temperature becomes the highest temperature. However, the probe is not properly inserted, and the light receiving area of the infrared sensor is, for example, as shown in FIG. When the body temperature is measured as described above in the case where the region is distant from the eardrum as indicated by the symbol R, a temperature lower than the eardrum temperature Tty is erroneously displayed as TR as the true body temperature. Therefore, it must be said that the reliability of the measurement result of the thermometer was low.

In such a case, the measurement result is displayed instead of displaying the measurement result because the probe itself is not properly inserted.
Rather, it is considered that the most appropriate response is to report that the measurement has failed, but such a user-friendly report has not been made with a conventional thermometer.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and is a user-friendly system capable of reliably detecting the eardrum temperature and notifying whether or not the body temperature can be measured correctly. A first object is to provide a thermometer.

It is a second object of the present invention to provide a thermometer capable of measuring a body temperature accurately and with good reproducibility even if there is an individual difference of a subject.

[0009]

According to a first aspect of the present invention, an infrared sensor detects infrared light guided through a probe inserted into an external auditory canal of a subject, and measures the body temperature of the subject. In order to achieve the first object, the thermometer is provided with a notifying means for notifying whether or not the infrared sensor has received infrared rays emitted from an appropriate body temperature detection position including an eardrum.

In the present invention, it is determined whether or not infrared rays emitted from the appropriate body temperature detection position are received by the infrared sensor, and the notification result is notified by the notifying means.

The invention according to claim 2 is a body temperature calculating means for sequentially calculating the body temperature of the subject based on an output signal output from the infrared sensor at least three times during a predetermined time; And a notification sound generating means for outputting an audible sound corresponding to each body temperature value obtained by the body temperature calculating means.

In the present invention, the body temperature of the subject is determined at least three times by the body temperature calculating means during the predetermined time, an audible sound corresponding to these body temperature values is output, and the measured body temperature values are sequentially measured. The state of the change is represented by an audible sound.

[0013] The invention according to claim 3, wherein the notifying means comprises a body temperature calculating means for sequentially obtaining the body temperature of the subject based on an output signal output from the infrared sensor at least three times during a predetermined time; The display device is constituted by a body temperature change display means for sequentially displaying in accordance with each body temperature value obtained by the body temperature calculation means and displaying a state of a change in the body temperature value.

According to the present invention, the body temperature of the subject is determined at least three times by the body temperature calculating means during a predetermined time, and a display corresponding to these body temperature values is made. The state is represented by the display.

According to a fourth aspect of the present invention, the notifying means includes a body temperature calculating means for sequentially obtaining a body temperature of the subject based on an output signal output from the infrared sensor at least three times during a predetermined time; Determining means for determining whether or not the infrared sensor has received infrared light radiated from the appropriate body temperature detection position based on each body temperature value obtained by the body temperature calculating means; and If it is determined that the infrared ray emitted from the appropriate body temperature detection position has not been received, it is constituted by a measurement malfunction notification means for notifying that the body temperature measurement has failed.

In the present invention, the body temperature of the subject is obtained at least three times during the predetermined time by the body temperature calculating means, and the infrared sensor is radiated from the proper body temperature detecting position based on the body temperature value by the determining means. If it is determined that infrared light has not been received, it is notified that the body temperature measurement has failed.

According to a fifth aspect of the present invention, the notifying means includes a body temperature calculating means for sequentially calculating a body temperature of the subject based on an output signal output from the infrared sensor at least three times during a predetermined time; Determining means for determining whether or not the infrared sensor has received infrared light radiated from the appropriate body temperature detection position based on each body temperature value obtained by the body temperature calculating means; and When it is determined that the infrared ray emitted from the appropriate body temperature detection position has been received, a measurement completion notifying means for notifying that the body temperature measurement has been completed is provided.

In the present invention, the body temperature of the subject is obtained at least three times during the predetermined time by the body temperature calculating means, and the infrared sensor is radiated from the appropriate body temperature detecting position based on the body temperature value by the determining means. When it is determined that the infrared ray has been received, it is notified that the body temperature measurement has been completed.

According to a sixth aspect of the present invention, the determining means determines that the first and third body temperature values in the first to third body temperature values successively obtained in time series sequentially obtained by the body temperature calculating means are equal to the first and third body temperature values.
When the determination condition that the temperature becomes higher than the body temperature value is satisfied, the infrared sensor determines that the infrared ray received from the appropriate body temperature detection position has been received, while the infrared sensor does not satisfy the determination condition. It is configured to determine that infrared rays emitted from the appropriate body temperature detection position have not been received.

According to the present invention, it is determined that the second body temperature is higher than the first and third body temperatures in three time-series consecutive first to third body temperature values sequentially obtained by the body temperature calculating means. Based on the conditions, it is determined whether or not the infrared sensor has received infrared light emitted from the appropriate body temperature detection position.

According to a seventh aspect of the present invention, in order to achieve the second object, the notifying means determines that the infrared sensor has received infrared light emitted from the proper body temperature detecting position by the determining means. And a body temperature display unit for displaying the second body temperature value as the body temperature value of the subject to be tested when.

In the present invention, the second body temperature value is displayed as the true body temperature value of the subject only when the determination means determines that the infrared sensor has received the infrared ray radiated from the appropriate body temperature detection position. Is done.

[0023]

FIG. 1 is a perspective view showing an embodiment of a thermometer according to the present invention. In this thermometer, a probe 10 is provided to protrude forward from a position above the front of the main body 1. This probe 10 is finished in a shape that can be inserted into the external auditory canal of the subject, and inside the probe,
As shown in FIG. 2, a light guide tube 11 is
However, infrared sensors 20 are provided so that the light receiving portion 21 faces the rear end surface 11b of the light guide tube 11, respectively. The interior of the light guide tube 11 is mirror-finished by gold plating or the like, and the light (infrared ray here) incident on the tip end surface 11a at an angle θ is totally reflected inside the mirror surface while being substantially at the same angle θ as the incident angle θ. ′ To emit light from the rear end face 11b. For this reason, the rear end face 11b
And the distance D between the light receiving section 21 of the infrared sensor 20 and the infrared sensor 20, the angle range in which infrared light emitted from the eardrum and / or the ear canal of the subject can be received, that is, the light receiving angle (2θ) of the probe 10 ) Can be set appropriately.

In this embodiment, the infrared sensor 20 is provided in the probe 10, but the position of the infrared sensor 20 is not limited to this. May be arranged on the main body 1.

FIG. 4 is a block diagram showing the electrical configuration of the thermometer shown in FIG. 1. The electrical configuration of the thermometer will be described with reference to FIGS. The infrared sensor 20 of the thermometer is connected to the amplifier 30, and an analog signal output from the infrared sensor 20 is amplified by the amplifier 30 and then input to the control unit 40. This control unit 40
Are, for example, CPU, ROM, RAM on one semiconductor substrate
It is configured by a one-chip microcomputer or the like in which the above-described components are integrally formed, and includes an A / D conversion unit 41, two I / O units 42 and 43, a body temperature calculation unit 44, and a determination unit 45.

In the control unit 40, the analog signal output from the amplifier 30 is converted into a digital signal by the A / D conversion unit 41, and is supplied to the body temperature calculation unit 44 via the I / O unit 42. As shown in FIG. 1, a measurement switch 50 provided on the side surface of the main body 1 is connected to the body temperature calculation unit 44 via the I / O unit 43.
A switch signal related to the ON / OFF operation of the measurement switch 50 is provided.

After the measurement switch 50 is pressed in accordance with a program stored in a memory (not shown), the body temperature calculating section 44 determines the temperature of the subject based on an output signal from the infrared sensor 20 for a predetermined time. Is continuously obtained, and a body temperature signal corresponding to each body temperature value is given to the notification sound generation unit 60 and the determination unit 45.

The determination unit 45 that has received the body temperature signal from the body temperature calculation unit 44, like the body temperature calculation unit 44, uses the infrared sensor 20 according to the program stored in the memory to detect the infrared radiation emitted from the appropriate body temperature detection position. It is determined whether or not the body temperature has been received. If it is determined that the body temperature has been received, a body temperature signal corresponding to the eardrum temperature is given to the body temperature display unit 70, and the eardrum temperature is set as the body temperature of the subject to be measured. While the information is displayed on the body temperature display unit 70 attached to the lowermost part, when it is determined that “the light is not received”, the fact that the measurement is abnormal is displayed on the body temperature display unit 70. The determination criteria and the criteria for determining the eardrum temperature will be described later in detail.

On the other hand, the notification sound generator 60, which has received a body temperature signal from the body temperature calculator 44, is attached to the substantially central portion of the front of the main body 1, and outputs an audible sound at a volume corresponding to the measured body temperature. That is, as shown in FIG. 5, an audible sound having a volume corresponding to the measured body temperature value is output from the notification sound generating unit 60. Therefore, not only the person to be measured but also the person who operates the thermometer can know the state of the change in the measured body temperature by the change in the volume of the audible sound. Instead of changing the volume, the output frequency of the audible sound may be changed in accordance with the body temperature, for example, as shown in FIG. 6. In this case, the change in the measured body temperature is caused by the change in the frequency of the audible sound. You can know how it is. Further, in addition to the volume and the frequency, the tone may be changed according to the measured body temperature to notify the state of the change in the measured body temperature.

Next, the operation of the thermometer configured as described above will be described with reference to FIG. FIG. 7 is a flowchart showing the operation of the thermometer of FIG. When the temperature sensor inserts the probe 10 into the ear canal of the subject, and then depresses the measurement switch 50, the body temperature measurement is started, and further, the temperature inspector follows the external auditory canal of the probe 10 according to the audible sound from the notification sound generation unit 60. While adjusting the insertion angle, the body temperature measurement is automatically performed as follows. When the temperature of the subject is directly measured by himself / herself, the subject inserts the probe 10 into his or her ear canal and sets the measurement switch 5
By pushing 0, body temperature measurement can be started.

First, when it is determined in step S1 that the measurement switch 50 has been pressed, the amount of infrared radiation emitted from the light receiving field of the infrared sensor 20 is measured (step S2).
A signal corresponding to the detected amount is supplied to the amplifier 30 and the A / D converter 4.
1 and input to the body temperature calculation unit 44 via the I / O unit 42. Then, the body temperature calculating section 44 calculates the body temperature based on the input signal in this way (step S3), and outputs a body temperature signal indicated by the calculated body temperature value to the notification sound generating section 6.
The audible sound is output at a volume according to the body temperature value by giving the value to 0 (step S4). Thus, the body temperature of the subject at a certain moment within the predetermined time is obtained.

Next, in step S5, it is determined whether or not a predetermined time has elapsed since the start of the measurement.
Until determined as "ES", steps S2 to S4 are repeated at least three times, and "YE" is determined in step S5.
S ”, three or more body temperature values T1, T2,
.., Tn (n is a natural number of 3 or more) are obtained.

Then, in step S6, it is determined whether there is a peak in the body temperature values T1, T2,..., Tn within the measurement time to determine whether the infrared sensor 20 has received the infrared ray emitted from the appropriate body temperature detection position. Determine whether or not. That is, as shown in FIG. 11, the temperature of the eardrum is higher than the temperature of the ear canal, and the eardrum exists in the light-receiving field of the infrared sensor 20,
When the infrared sensor 20 receives the infrared rays radiated from the appropriate body temperature detection position, the body temperature value becomes the maximum temperature corresponding to the eardrum, while the light receiving field of the infrared sensor 20 is shifted from the appropriate body temperature detection position. Since the body temperature value measured decreases as the distance increases, if the eardrum enters the light receiving field of the infrared sensor 20 without fail, for example, a peak of the body temperature value exists as shown in FIG. The profile is mountain-shaped. That is, the measured body temperature value gradually increases as the number of body temperature measurements progresses, reaches the maximum temperature Tm at a certain number m of measurement, and then the body temperature value gradually decreases from the maximum temperature Tm when the number of body temperature measurements further advances. It is becoming. Therefore, if there is a peak in the body temperature value within the measurement time, it becomes clear that the infrared sensor 20 reliably captures the eardrum in its light-receiving field and measures the eardrum temperature. Since it cannot be said that the eardrum 20 has reliably caught the eardrum in its light-receiving field, it is possible to reliably determine whether or not the infrared sensor 20 has received infrared light emitted from the appropriate body temperature detection position in step S6.

More specifically, step S6 is executed by the determination section 45 by performing, for example, the following comparison processing. That is, in three first to third body temperature values successively obtained in time series sequentially obtained by the body temperature calculation unit 44, for example, the body temperature values Tm-1, Tm, and Tm + 1 in FIG. 8, the second body temperature value Tm When the infrared sensor 20 satisfies the determination condition of being higher than the first and third body temperature values Tm-1 and Tm + 1, it is determined that the infrared sensor 20 has received the infrared ray radiated from the appropriate body temperature detection position. When the determination condition is not satisfied, it is determined that the infrared sensor 20 has not received the infrared ray radiated from the appropriate body temperature detection position.

As described above, in step S6, "YE"
S "(the infrared sensor 20 has received infrared rays emitted from the appropriate body temperature detection position), the maximum body temperature Tm is recognized as the eardrum body temperature, and the body temperature is determined as the body temperature of the subject to be measured. The value Tm is displayed on the body temperature display unit 70, and a measurement end sound for notifying the end of the measurement is output from the notification sound generation unit 60 (step S7). Although the maximum body temperature Tm is used as the body temperature of the subject to be measured as it is, for example, the body temperature Tm is interpolated and corrected using the body temperature Tm-1 and Tm + 1 on both sides thereof. The value may be displayed as the body temperature of the subject.

On the other hand, when it is determined in step S6 that the determination is "NO" (the infrared sensor 20 did not receive the infrared ray emitted from the appropriate body temperature detection position), the body temperature display section 70
A warning indicating that the body temperature measurement has failed is displayed, and a warning sound is output from the notification sound generator 60 (step S8). As a result, the subject and the thermometer know that the accurate temperature of the subject could not be measured, and an incorrect measurement result is displayed even though the accurate body temperature has not been measured. Can be solved.

As described above, according to the thermometer according to this embodiment, the body temperature is measured at least three times based on the amount of infrared light received by the infrared sensor 20, and there is a peak in the measured body temperature value. Only when it is determined by the infrared sensor 20 that the infrared ray emitted from the appropriate body temperature detection position has been received, the body temperature value Tm corresponding to the mountain portion is recognized as the eardrum temperature, and this body temperature value Tm is determined as the temperature of the subject. Since the body temperature is displayed on the body temperature display section 70, the body temperature of the subject can be measured accurately and with good reproducibility without being affected by individual differences of the subject. As described above, the body temperature calculation unit 44, the determination unit 45, and the body temperature display unit 70 constitute a notification unit that notifies the body temperature Tm.

Further, there is no peak in the measured body temperature value,
If it is determined by the infrared sensor 20 that the infrared ray emitted from the appropriate body temperature detection position has not been received, the malfunction of the measurement is reported without displaying the measured body temperature value. In the user-friendly notification is done. As described above, the present embodiment not only displays the body temperature Tm, but also has a notifying unit for notifying a measurement malfunction.

Furthermore, since this thermometer is configured to output an audible sound at a volume corresponding to the body temperature, the change in the measured body temperature can be known from the change in the volume of the audible sound. It is possible to know whether or not the body temperature measurement has been accurately performed. That is, similarly to the case of the measured body temperature value, when there is a peak in the volume of the audible sound, the subject to be measured or the
0, it can be determined that the infrared ray emitted from the proper body temperature detection position has been received. On the other hand, if there is no peak in the volume of the audible sound, the infrared sensor 20 determines from the proper body temperature detection position. It can be determined that the emitted infrared light has not been received. As described above, in this embodiment, the notification sound generating unit 60 is configured to output an audible sound at a volume corresponding to the body temperature,
Like the body temperature calculation unit 44, the determination unit 45, and the body temperature display unit 70, it functions as a notification unit. In addition, since the audible sound corresponding to the measured body temperature value is continuously output during the measurement, the temperature sensor adjusts the insertion angle of the probe 10 into the external auditory canal while listening to the audible sound, and the infrared sensor It is easy to position the eardrum within the 20 light-receiving fields, the probability of measurement malfunction is suppressed, and more accurate body temperature measurement is possible.

Although the present invention has been described with reference to the embodiment, the present invention is not limited to the above embodiment. For example, a visual display is provided instead of an audible sound, and the display changes according to the measured body temperature value. From the state of the change in the display, the infrared sensor 20 receives infrared rays emitted from the appropriate body temperature detection position. It may be configured to be able to determine whether or not it has been done. FIG. 9 is a diagram showing an example of this, and is a diagram showing a body temperature change display unit that visually displays the state of a change in the measured body temperature value and functions as a notification unit similarly to the notification sound generation unit 60. The body temperature change display section 80 includes, for example, a plurality of Ls arranged in a row on the upper rear side of the main body 1.
The number of L according to the measured body temperature value is constituted by the ED81.
The ED is continuously lit from the left side, and the state of the change of the measured body temperature value can be visually grasped, and the same effect as in the case of the audible sound can be obtained. It should be noted that the body temperature change display section 80 has a single L
An ED may be used to change the blinking frequency in accordance with the measured body temperature value as shown in FIG. 10 so as to visually display how the measured body temperature value changes.

In the above embodiment, the insertion angle of the probe into the ear canal is changed by manually moving the probe. However, the insertion angle may be automatically changed.

[0042]

As described above, according to the first aspect of the present invention, it is determined whether or not infrared light emitted from the appropriate body temperature detection position has been received by the infrared sensor, and the determination result is reported. Therefore, a user-friendly thermometer that can reliably detect the eardrum temperature and notify whether or not the body temperature can be measured correctly can be obtained.

According to the second aspect of the present invention, the body temperature of the subject is obtained at least three times during the predetermined time by the body temperature calculating means, and audible sounds corresponding to these body temperature values are output, thereby sequentially measuring the body temperature. The user can easily know whether or not the body temperature value has been correctly measured by accurately capturing the eardrum temperature by using an audible sound.・ A friendly thermometer can be obtained. In addition, it becomes easier for the thermometer to adjust the insertion angle of the probe into the ear canal while listening to the audible sound, thereby positioning the eardrum within the light receiving field of the infrared sensor, suppressing the probability of measurement malfunction, and achieving higher accuracy. Body temperature measurement becomes possible.

According to the third aspect of the present invention, the body temperature of the subject is sequentially obtained based on the output signals output from the infrared sensor at least three times during a predetermined time, and the body temperature corresponding to these body temperature values is determined. The display can be used to visually display the state of changes in body temperature values that are being sequentially measured, so that the user can easily determine whether the temperature of the eardrum has been accurately grasped and the body temperature has been measured correctly. A user-friendly thermometer can be obtained. In addition, it becomes easy for the thermometer to adjust the insertion angle of the probe into the ear canal while watching the display, and to easily position the eardrum in the light receiving field of the infrared sensor. Suppressed and more accurate body temperature measurement becomes possible.

According to the fourth aspect of the present invention, the body temperature of the subject is obtained at least three times during the predetermined time, and the infrared sensor receives infrared rays emitted from the appropriate body temperature detection position based on the body temperature value. Since it is configured to notify that the body temperature measurement has failed when it is determined that it has not been performed, a user-friendly thermometer that allows the user to easily know that the body temperature measurement has failed is provided. can get.

According to the fifth aspect of the present invention, the body temperature of the subject is obtained at least three times during the predetermined time, and the infrared sensor receives infrared rays emitted from the appropriate body temperature detection position based on the body temperature value. If it is determined that the temperature measurement has been completed, the user is notified that the temperature measurement has been completed, so that a user-friendly thermometer that allows the user to easily know that the temperature measurement has been successfully completed can be obtained.

According to the sixth aspect of the present invention, in the three time-series consecutive first to third body temperature values sequentially obtained by the body temperature calculating means, the second body temperature value is smaller than the first and third body temperature values. Is also determined based on the determination condition that the temperature becomes high, whether or not the infrared sensor has received the infrared ray radiated from the appropriate body temperature detection position. It is possible to automatically judge whether or not it is.

According to the seventh aspect of the present invention, the second body temperature value is set to the true temperature of the subject only when the determination means determines that the infrared sensor has received the infrared ray radiated from the appropriate body temperature detection position. The body temperature of the subject can be accurately measured because it is configured to display the body temperature of the subject.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of a thermometer according to the present invention.

FIG. 2 is a sectional view of a probe part provided in the thermometer of FIG.

FIG. 3 is a diagram schematically showing a state of propagation of infrared light in a light guide tube.

FIG. 4 is a block diagram showing an electrical configuration of the thermometer shown in FIG.

FIG. 5 is a graph showing a change in the volume of an audible sound with respect to a measured body temperature value.

FIG. 6 is a graph showing how a frequency of an audible sound changes with respect to a measured body temperature value.

FIG. 7 is a flowchart showing the operation of the thermometer of FIG. 1;

FIG. 8 is a graph showing a typical example of a change in a body temperature value measured within a predetermined time.

FIG. 9 is a diagram illustrating a body temperature change display unit that visually displays a state of a change in a measured body temperature value.

FIG. 10 is a graph showing how a blinking frequency changes in a body temperature change display section with respect to a measured body temperature value.

FIG. 11 is a graph showing the temperature distribution of the eardrum and the ear canal.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Probe 11 Light guide tube 20 Infrared sensor 21 Light-receiving part 30 Amplifier 44 Body temperature calculating part 45 Judgment part 60 Notification sound generation part 70 Body temperature display part 80 Body temperature change display part Tm Maximum temperature (drum temperature) Tty Tympanic membrane temperature

Claims (7)

[Claims] 1. A thermometer for detecting an infrared ray guided through a probe inserted into an external auditory canal of an examinee with an infrared sensor and measuring the body temperature of the examinee, wherein the infrared sensor includes an eardrum. A thermometer provided with a notifying means for notifying whether or not infrared rays emitted from various body temperature detection positions have been received. 2. The body temperature calculating means for sequentially obtaining the body temperature of the subject based on an output signal output from the infrared sensor at least three times during a predetermined time; and the body temperature calculating means. The thermometer according to claim 1, further comprising: a notification sound generating unit that outputs an audible sound corresponding to each of the obtained body temperature values. 3. The body temperature calculating means for sequentially obtaining the body temperature of the subject based on an output signal output from the infrared sensor at least three times during a predetermined time, and the body temperature calculating means 2. The thermometer according to claim 1, further comprising: a body temperature change display unit that sequentially performs display according to each of the obtained body temperature values and displays a state of a change in the body temperature value. 4. The body temperature calculating means for sequentially obtaining the body temperature of the subject based on an output signal output from the infrared sensor at least three times during a predetermined time; and the body temperature calculating means. Determining means for determining whether or not the infrared sensor has received infrared light radiated from the appropriate body temperature detection position based on each of the determined body temperature values; and The thermometer according to claim 1, further comprising: a measurement malfunction notification unit that notifies that the measurement of the body temperature has failed when it is determined that the infrared ray emitted from the position has not been received. 5. The body temperature calculating means for sequentially calculating the body temperature of the subject based on an output signal output from the infrared sensor at least three times during a predetermined time; and the body temperature calculating means. Determining means for determining whether or not the infrared sensor has received infrared light radiated from the appropriate body temperature detection position based on each of the determined body temperature values; and 2. The thermometer according to claim 1, further comprising: a measurement completion notifying means for notifying that the temperature measurement has been completed when it is determined that the infrared ray emitted from the position has been received. 6. The determination means is configured such that the second body temperature is higher than the first and third body temperature values in the first to third body temperature values successively obtained in time series sequentially obtained by the body temperature calculation means. When the determination condition is satisfied, it is determined that the infrared sensor has received infrared light emitted from the appropriate body temperature detection position. On the other hand, when the determination condition is not satisfied, the infrared sensor is determined to have received the appropriate body temperature detection position. The thermometer according to claim 4 or 5, wherein it is determined that infrared light emitted from the device has not been received. 7. The notifying unit determines the second temperature value as the body temperature of the subject to be tested when the determining unit determines that the infrared sensor has received infrared light emitted from the appropriate body temperature detection position. The thermometer according to claim 6, further comprising a body temperature display means for displaying as a value.