JP2012070921A - Ear thermometer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an ear thermometer capable of easy and accurate insertion of a probe into a subject's aural cavity.SOLUTION: The ear thermometer 100 includes the probe 101 formed in a hollow cylindrical body to be inserted into the aural cavity, mounting units 102 and 104 having mounting features 106-108 for mounting on a finger of a measurer and supporting the probe 101 on a finger of a measurer and supporting the probe 101 so that the support position of the probe 101 is opposed to the palmar surface of the distal phalanx of the measurer when the mounting features 106-108 are used to mount the probe on the finger of the measurer, and a turning unit for turning the probe 101 around the support position and fixing the same at a predetermined turning angle.

Description

  The present invention relates to an ear thermometer.

  Conventionally, an ear-type thermometer that measures the body temperature of a subject by inserting a probe into the ear cavity and detecting the temperature of the eardrum or its surroundings has been put into practical use.

  An ear thermometer generally includes a temperature detection element (for example, a thermistor) that detects an environmental temperature and an infrared detection element (for example, a cold detector) that detects infrared rays emitted from a temperature measurement site (the eardrum or its surroundings) in the ear cavity. Thermopile consisting of a contact point and a hot contact point), and is configured to calculate the body temperature of the subject based on the detection temperature of each detection element, compared to other types of thermometers, It has the advantage that body temperature can be measured with high accuracy in a short time.

JP 2008-241362 A

  However, in the case of an ear-type thermometer, the probe is not properly inserted into the ear cavity (that is, an appropriate measurement state cannot be ensured), and infrared rays emitted from the temperature measurement site in the ear cavity cannot be detected properly. In this case, there is a problem that the measurement error increases. In particular, such a problem becomes conspicuous in the case of a subject who is difficult to remain stationary for a certain period of time such as an infant or the like and needs to be supported by a measurer.

  On the other hand, the conventional ear thermometer is based on the premise that the measurement person or the subject himself / herself performs the measurement while supporting the lower part of the main body as shown in FIG. In the insertion, it is not always easy to align the tip of the probe portion with high accuracy. In addition, since one hand is completely closed to support the main body, it is more difficult to measure with high accuracy in the case of a subject who needs to be supported by the hand during measurement, such as an infant. It was something.

  The present invention has been made in view of the above problems, and an object thereof is to provide an ear-type thermometer capable of accurately and easily inserting a probe portion into an ear cavity of a subject.

In order to achieve the above object, an ear thermometer according to the present invention has the following configuration. That is,
A temperature detection element that detects an environmental temperature; and an infrared detection element that detects a relative temperature of the temperature measurement part by detecting infrared rays emitted from the temperature measurement part in the ear cavity of the subject. An ear-type thermometer that measures the body temperature of the subject using the environmental temperature detected by the detection element and the relative temperature detected by the infrared detection element,
A probe formed by a hollow cylindrical body and inserted into the ear cavity;
A mounting function for mounting on a measurer's finger, and when the probe is mounted on the measurer's finger by the mounting function, the support position of the probe is opposed to the palm surface of the finger end node portion of the measurer A mounting portion for supporting the probe so as to be in a position to be
The probe can be rotated around the support position and fixed at a predetermined rotation angle so that the angle in the protruding direction of the probe with respect to the palm surface of the fingertip node portion of the measurer is variable. And a rotating part.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to provide the ear-type thermometer which can insert a probe part accurately and easily in a subject's ear cavity.

It is a figure which shows the external appearance structure of the ear-type thermometer 100 which concerns on one Embodiment of this invention. It is the front view and side view of the ear-type thermometer 100. It is a figure which shows the cross-sectional structure of the side surface of the probe part of the ear-type thermometer. It is a figure which shows a mode that the measurement person wears the ear-type thermometer. It is the figure which showed a mode that body temperature measurement was performed using the ear-type thermometer. It is a figure which shows the structure of the detection element storage body of the ear-type thermometer. It is a figure which shows the function structure of the ear-type thermometer 100 whole. It is a flowchart which shows the flow of the body temperature measurement process in the ear-type thermometer. It is a figure which shows the external appearance structure of the conventional ear-type thermometer.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

1. External Configuration of Ear Thermometer First, the external configuration of the ear thermometer 100 according to one embodiment of the present invention will be described. FIG. 1 is a diagram showing an external configuration of an ear thermometer 100 according to an embodiment of the present invention.

  In FIG. 1, reference numeral 101 denotes a probe unit which is inserted into the ear cavity (the ear canal) in order to detect infrared rays emitted from a temperature measurement site (preferably the eardrum and / or its surroundings) in the ear cavity. The probe unit 101 has a cylindrical shape with an outer diameter of the tip of about 7 mm so that it can be inserted into the ear cavity.

  Reference numeral 102 denotes a probe support unit that supports the probe unit 101. The distal end surface 113 of the probe support portion 102 is formed by a curved surface, and a sliding groove 114 is provided at the center position. The probe unit 101 can be rotated (variable in angle) along the distal end surface 113 while sliding with respect to the sliding groove 114, and can be fixed at a predetermined rotation angle to the probe support unit 102. It shall be supported. The details of the rotation mechanism of the probe unit 101 will be described later.

  A finger fixing wall 103 is provided on the upper surface 111 of the probe support unit 102. When the ear thermometer 100 is worn on the finger of the measurer, the X-axis direction (plus direction and minus direction) of the finger and Y Defines the position in the axial direction (minus direction).

  Note that the length of the upper surface 111 of the probe support portion 102 in the Y-axis direction is approximately the length from the tip of the finger of the measurer to the vicinity of the first joint. At a position opposite to the supporting position to be supported, the measurer's finger belly (the part where the fingerprint is located; the part on the palm surface side of the finger end node part) is configured to contact. As a result, when the tip of the probe unit 101 is inserted into the ear cavity of the subject, the measurer can feel the sensation that the tip of the probe unit 101 contacts the ear wall with the fingertip.

  A fixing unit 104 controls the entire ear thermometer 100 and has an upper surface 112 that forms the same plane as the upper surface 111 of the probe support unit 102. When the ear thermometer 100 is attached to the finger of the measurer, Further, a portion closer to the root side than the first joint of the measurer's finger is configured to contact. In the ear thermometer 100 according to the present embodiment, the length of the fixing unit 104 in the Y-axis direction is approximately the length from the first joint to the second joint of the measurer's finger. To do. Thereby, the measurer can freely perform the operation of bending the finger at the second joint, and when the ear thermometer 100 is inserted into the ear cavity of the subject, the minute angle can be adjusted with the fingertip. become able to. In other words, it is possible to align the tip of the probe unit 101 with high accuracy.

  Note that a finger fixing wall 105 is provided on the upper surface 112 of the fixing unit 104, and when the ear thermometer 100 is attached to a measurer's finger, the finger in the X-axis direction (plus direction and minus direction). Defines the position.

  In addition, attachment bands 106 and 108 wound around the measurer's finger are provided on the side surface of the fixing unit 104, and the measurer's finger is placed on the upper surface 111 of the probe support unit 102 and the upper surface 112 of the fixing unit 104. In such a state, the wearing band 106 is wound around the finger of the measurer, and the wearing band 108 is passed through the wearing ring 107 at the tip, and then pulled in the X-axis direction (minus direction). Can be stably fixed to the ear-type thermometer 100 (that is, the wearing bands 106 and 108 and the wearing ring 107 realize a mounting function for mounting the ear-type thermometer 100 on the finger of the measurer. The probe support portion 102 and the fixing portion 104 to be mounted by the mounting function are integrated and serve as a mounting portion).

  Each of the mounting band 106 and the mounting band 108 is provided with a male surface fastener and a female surface fastener (not shown), and the mounting band 108 is pulled in the X-axis direction (minus direction). Thus, the attachment band 108 can be fixed to the attachment band 106 with a ruled line.

2. Next, the configuration of the front and side surfaces of the ear thermometer 100 will be described. 2A (a) is a front view of the ear thermometer 100, and FIG. 2A (b) is a side view of the ear thermometer 100. FIG.

  As shown in FIG. 2A (a), a display unit 201 is provided on the lower surface 206 (the surface on the same side as the surface on which the probe unit 101 protrudes) facing the upper surface 112 of the fixing unit 104. Display the measured body temperature of the subject. Further, a power switch 202 is provided on the lower surface 206, and ON / OFF of the power source of the ear thermometer 100 can be controlled by a pressing operation.

  Further, as shown in FIG. 2A (b), a measurement start switch 203 is provided on the side surface of the fixed portion 104, and is instructed to start measurement by being pressed while the power is on. can do. A speaker 204 outputs sound when the measurement start switch 203 is pressed or when body temperature measurement is completed. Reference numeral 205 denotes an LED element which lights up corresponding to the internal state of the ear thermometer 100.

3. Next, the rotation mechanism of the probe unit 101 of the ear thermometer 100 will be described. FIG. 2B is a diagram illustrating a cross-sectional configuration of side surfaces of the probe unit 101 and the probe support unit 102. Hereinafter, the rotation mechanism of the probe unit 101 will be described with reference to FIG. 2B.

  As shown in FIG. 2B (a), the probe unit 101 includes a hollow cylindrical probe housing 212 and a probe bottom 213 that forms the bottom of the probe housing 212. The probe housing 212 accommodates a detection element. A body 214 (details will be described later) is fixed.

  Further, the probe bottom 213 is supported by the support member 215 at the center position. The support member 215 is supported by a rotation member 217 attached to the probe support portion 102 so as to be rotatable at a rotation shaft 216 (support position). 216 can be rotated around.

  The rotation member 217 is provided with angle fixing members 218 on the front side and the opposite side of the paper surface, respectively, and a latch mechanism 219 (rotation device) disposed on the front side and the back surface side of the paper surface in the probe support unit 102. The member 217 is latched by a mechanism in which a plurality of protrusions are arranged along the trajectory of the angle fixing member 218 when the member 217 is rotated around the rotation shaft 216), so that the rotation member 217 has a predetermined angle. Can be fixed. Accordingly, the measurer can fix the probe unit 101 at a predetermined angle when the probe unit 101 is rotated with respect to the probe support unit 102.

  2B (b-1) to 2 (b-3) are diagrams illustrating a rotation mechanism when the probe unit 101 is rotated and fixed at a predetermined angle.

  (B-1) is such that the protruding direction of the probe unit 101 is a direction substantially orthogonal to the upper surface 111 and the upper surface 112 (that is, a direction approximately orthogonal to the palm surface of the finger terminal node portion of the measurer). 5 shows a state in which the probe unit 101 is rotated and fixed. (B-2) shows a state in which the probe unit 101 is rotated and fixed so that the protruding direction of the probe unit 101 is approximately 45 degrees with respect to the upper surface 111 and the upper surface 112. . Further, (b-3) shows a state in which the probe unit 101 is rotated and fixed so that the protruding direction of the probe unit 101 is approximately 30 degrees with respect to the upper surface 111 and the upper surface 112. .

  Since the angle fixing member 218 provided on the rotation member 217 is latched by the latch mechanism 219 at each angle, the angle fixing member 218 is fixed at each angle.

  This allows the measurer to probe at an angle that can be easily inserted into the ear canal of the subject, depending on the length of his / her fingers and the size of the hand, the size of the face of the subject and the length of the neck, etc. The part 101 can be rotated and fixed.

  In the case of the ear thermometer 100 according to the present embodiment, the position of the abdomen of the measurer's finger in a state where the measurer's finger is placed on the upper surface 111 of the probe support unit 102 and the upper surface 112 of the fixing unit 104. Since the rotation shaft 216 is disposed at a position opposite to the probe portion 101 and the probe unit 101 is rotated around the rotation shaft 216, the measurer can be used regardless of the angle of fixation. Therefore, it can be felt that the probe unit 101 is extended from the fingertip.

  As a result, the measurer can easily and accurately insert the probe portion of the ear thermometer 100 into the ear hole of the subject.

4). Wearing state of the ear thermometer 100 Next, a state where the measurer wears the ear thermometer 100 will be described with reference to FIG. As shown in FIG. 3, when the measurer's finger contacts the finger fixing walls 103 and 105, the position of the measurer's finger in the Y-axis direction (minus direction) and the X-axis direction (plus direction and minus direction) is changed. It is prescribed.

  Further, the attachment band 108 is passed through the attachment ring 107 provided at the tip of the attachment band 106, and the attachment band 108 is pulled in the X-axis direction (minus direction), whereby the first joint and the second joint of the measurer's finger are pulled. A portion between the joints is fixed to the fixing portion 104.

  As described above, in a state where the ear thermometer 100 is attached to the finger of the measurer, the measurer can bend the second joint of the finger, and thereby the probe unit 101 into the ear cavity of the subject. When inserting, the measurer can finely adjust the position of the tip of the probe unit 101.

  Further, the belly of the measurer's finger is in contact with the upper surface 111 at a position on the upper surface 111 of the probe support portion 102 and facing the support position (rotation shaft 216) where the probe support portion 102 supports the probe portion 101. Therefore, the measurer can sense the sensation that the tip of the probe unit 101 contacts the ear wall with a fingertip.

  As shown in FIG. 3, the ear thermometer 100 is stably fixed to any one of the measurer's fingers (usually the index finger). Fingers other than the finger to which the thermometer 100 is attached can be used freely.

5. Body Temperature Measurement Using Ear-Type Thermometer 100 Next, how the measurer wears the ear-type thermometer 100 and measures the body temperature of the subject will be described with reference to FIG. As shown in FIG. 4, when the ear thermometer 100 is attached to the index finger of the right hand of the measurer, fingers other than the right index finger can be used freely. For this reason, the measurer can press the subject's face with both hands (all fingers of the left hand and fingers other than the index finger of the right hand).

  As described above, according to the ear thermometer 100 according to the present embodiment, the subject can be pressed with both hands at the time of measurement, so that the body temperature measurement in a stable state (state where the subject is stationary) can be performed. This makes it possible to reduce the occurrence of measurement errors.

  In addition, since the probe unit 101 can be inserted after fixing the angle of the probe portion 101 to be easy to insert into the ear hole of the subject, the length of the measurer's finger, the size of the hand, Regardless of the size of the face or the length of the neck, the measurer can easily insert the probe unit 101 into the ear canal of the subject and measure the body temperature.

6). Configuration of Detection Element Storage Body 214 Next, details of the detection element storage body 214 will be described. As described above, the probe unit 101 is formed of a hollow cylindrical body having an opening formed at the tip, and in the vicinity of the opening at the tip, a temperature detection element (for example, a thermistor) that detects an environmental temperature, A detection element housing 214 in which an infrared detection element (for example, a thermopile composed of a cold junction and a warm junction) for detecting infrared rays radiated from a temperature measurement site (the eardrum or the vicinity thereof) in the ear cavity is fixed. ing.

  FIG. 5 is an external perspective view in which a part of the detection element housing 214 is cut away. As shown in FIG. 5, the detection element storage body 214 includes an attachment base member 503, and on the attachment base member 503, a thermistor 501 that is a temperature detection element that detects an environmental temperature, and a temperature measurement site in the ear cavity. An infrared detecting element 502 for detecting infrared rays radiated from is fixed.

  The thermistor 501 is adjusted so as to be able to detect an absolute temperature that is a use environment temperature. Further, the mounting base member 503 is made of a good heat conductor such as aluminum so that the outside air temperature is transmitted to the thermistor 501, and the thermistor 501 has a mounting base member with a large surface area. 503 is fixed.

  Further, an electrode lead 507 is attached to the thermistor 501, and the detected temperature is output via the electrode lead 507.

  On the other hand, the infrared detecting element 502 that detects the infrared IR is adjusted to detect the relative temperature.

  In the ear thermometer 100 according to the present embodiment, a thermocouple type (thermopile type) detection element is used as the infrared detection element 502. For this reason, as shown in FIG. 5, on the wafer carrier 502c fixed on the pedestal 503b of the mounting base member 503, a hot junction 502a and a cold junction 502b formed in a petal shape are formed.

  Each hot junction 502a and cold junction 502b are formed of different metals and are connected in series, and are connected to electrode leads 508 fixed in an insulated state with respect to the mounting base member 503 via lead wires. Yes. The range H surrounded by the hot junction 502a is painted black to make it easier to absorb infrared rays.

  Under such a configuration, the infrared detection element 502 detects the relative temperature based on the electromotive force generated between the contacts.

  The ear thermometer 100 calculates the body temperature of the subject by adding the detection temperature detected by the infrared detection element to the detection temperature detected by the temperature detection element. Note that details of this calculation processing are described in detail in, for example, Japanese Patent Application Laid-Open No. 11-123179, and a detailed description thereof is omitted here.

  Furthermore, the detection element storage body 214 includes a cylindrical container member 505 formed so as to surround the two detection elements, and the container member 505 includes an outer peripheral surface 505a and a ceiling surface having a hole 504. The

  Similarly to the mounting base member 503, the container member 505 is also formed of a good heat conductor such as an aluminum material or a stainless steel material, so that the outside air temperature is easily transmitted to the thermistor 501. A window member 506 made of a ceramic material that transmits infrared rays is fixed to the hole 504.

  In the case of the detection element storage body 214 shown in FIG. 5, the mounting base member 503 has an outer flange 503a extending from the edge thereof in the radial direction. It will be stably held on the inner wall of the portion 101.

7). Functional Configuration of Ear Thermometer 100 Next , the functional configuration of the ear thermometer 100 will be described with reference to FIG. FIG. 6 is a block diagram showing a functional configuration of the ear thermometer 100. Of the components or components shown in FIG. 6, components or components that have already been described are assigned the same reference numerals, and detailed descriptions thereof are omitted here.

  As shown in FIG. 6, the thermistor 501 built in the detection element housing 214 of the probe unit 101 is connected to the amplification unit 605 on the mounting substrate via the electrode lead 507. The infrared detection element 502 that detects infrared IR is connected to the amplification unit 606 on the mounting substrate via an electrode lead 508.

  The control unit 601 disposed on the mounting board is provided with a CPU 602 and RAMs 603 and ROM 604 that are storage elements. The detected temperature detected by the thermistor 501, the detected temperature detected by the infrared detecting element 502, and the like. Based on the above, the body temperature of the subject is calculated.

  In addition, an LED element 205, a display unit 201, a speaker 204, a power switch 202, and a measurement start switch 203 are connected to the control unit 601, respectively.

  The display unit 201 displays the body temperature of the subject calculated by the control unit 601. Further, when the measurement start switch 203 is pressed, a character such as a pictograph indicating that the measurement mode has been shifted is displayed.

  The LED element 205 lights up in green when the measurement start switch 203 is pressed, and lights up in red when the measurement of the body temperature of the subject is completed. The speaker 204 outputs sound when the measurement start switch 203 is pressed or when measurement of the body temperature of the subject is completed.

  Note that the control unit 601 is configured to operate by receiving power supply from the button battery 608 (power supply unit) when the power switch 202 is pressed.

8). Flow of Body Temperature Measurement Process Next, the flow of the body temperature measurement process in the ear thermometer 100 will be described. FIG. 7 is a flowchart showing the flow of the body temperature measurement process in the ear thermometer 100.

  When the power switch 202 is pressed, the body temperature measurement process is started. In step S701, it is determined whether or not the measurement start switch 203 is pressed. If it is determined in step S701 that the measurement start switch 203 has been pressed, the process proceeds to step S702.

  In step S702, the detected temperatures detected by the thermistor 501 and the infrared detecting element 502 are acquired.

  In step S703, the control unit 601 calculates the body temperature of the subject based on the detected temperature acquired in step S702. The calculated body temperature of the subject is displayed on the display unit 201.

  In step S <b> 704, the LED element 205 is lit in red to notify the control unit 601 that the process for calculating the body temperature of the subject has been completed. Also, sound is output from the speaker 204, and the body temperature measurement process is terminated.

  As is clear from the above description, the ear thermometer 100 according to the present embodiment has a configuration in which the mounting portions (102 and 104) and the mounting bands 106 and 107 are arranged to be mounted on the finger of the measurer, A finger fixing wall (regulating member) is provided on the upper surfaces 111 and 112 that come into contact with the measurer's finger when worn, and the position of the measurer's finger when worn is defined. As a result, the ear thermometer 100 can be stably attached to the finger of the measurer, and the measurer can use both hands when measuring the body temperature of the subject.

  Even when the ear-type thermometer 100 is attached, the length of the fixing portion 104 is regulated so that the second joint of the measurer's finger can be freely bent, so that the ear of the probe unit 101 can be bent. Upon insertion into the cavity, the position of the tip of the probe unit 101 can be finely adjusted.

  Furthermore, when the ear thermometer 100 is worn, the prober's finger belly comes into contact with the probe on the upper surface 111 of the probe support unit 102 at a position facing the support position of the probe unit 101. The measurer can feel the sensation of the tip of the portion 101 touching the ear wall with his fingertip.

  Further, the probe unit 101 is configured to be rotatable around the support position and can be fixed at a predetermined angle. As a result, the measurer can measure the body temperature by fixing it at an angle that is easy to insert into the ear canal of the subject, the length of the measurer's finger, the size of the hand, the size of the subject's face. The probe unit 101 can be easily inserted into the ear hole of the subject regardless of the length of the sheath or the neck.

  As a result, in the ear-type thermometer, the probe portion can be accurately and easily inserted into the ear cavity of the subject.

  In the above description, the upper surface 111 of the probe support portion 102 and the upper surface 112 of the fixing portion 104 are flat surfaces, but the present invention is not limited to this, and may be formed by a curved surface with a concave center. In this case, it matches the shape of the finger, and the stability when wearing the ear thermometer 100 is further improved.

  In the above description, as a mechanism for fixing the rotation angle of the probe unit 101, the angle fixing member 218 is provided on the rotation member 217 on the probe unit 101 side, and the latch mechanism 219 is disposed on the probe support unit 102 side. However, the present invention is not limited to this. Any other mechanism may be used as long as the rotation angle of the probe unit 101 can be fixed.

  In the above description, the latch mechanism 219 is configured such that six protrusions are arranged in the rotation direction of the probe unit 101 and the angle can be changed in five stages. However, the present invention is not limited to this. Instead, it may be configured to have a finer angular resolution.

DESCRIPTION OF SYMBOLS 100 ... Ear-type thermometer which concerns on one Embodiment, 101 ... Probe part, 102 ... Probe support part, 103 ... Finger fixing wall, 104 ... Fixing part, 105 ... Finger fixing wall , 106... Mounting band, 107... Mounting ring, 108... Mounting band, 111... Upper surface, 112. ..Measurement start switch, 204... Speaker, 205... LED element, 206 .. lower surface, 211... Opening, 212... Probe housing, 213. Detecting element housing body, 215... Supporting member, 216... Rotating shaft, 217... Rotating member, 218... Angle fixing member, 219. ... Infrared detectors 502a ... Hot junction, 502b ... Cold junction, 502c ... Wafer carrier, 503 ... Base member, 503a ... Outer collar, 503b ... Base, 504 ... Hole, 505 ..Container member, 505a, outer peripheral surface, 506, window member, 507, electrode lead, 508, electrode lead

Claims (5)

A temperature detection element that detects an environmental temperature; and an infrared detection element that detects a relative temperature of the temperature measurement part by detecting infrared rays emitted from the temperature measurement part in the ear cavity of the subject. An ear-type thermometer that measures the body temperature of the subject using the environmental temperature detected by the detection element and the relative temperature detected by the infrared detection element,
A probe formed by a hollow cylindrical body and inserted into the ear cavity;
A mounting function for mounting on a measurer's finger, and when the probe is mounted on the measurer's finger by the mounting function, the support position of the probe is opposed to the palm surface of the finger end node portion of the measurer A mounting portion for supporting the probe so as to be in a position to be
The probe can be rotated around the support position and fixed at a predetermined rotation angle so that the angle in the protruding direction of the probe with respect to the palm surface of the fingertip node portion of the measurer is variable. An ear-type thermometer comprising: a rotating part.   The mounting portion is configured to fit between a tip of the measurer's finger and the second joint of the measurer when the mount is attached to the measurer's finger. The ear thermometer according to 1.   The mounting unit further includes a display unit that displays the measured body temperature of the subject, and the display unit is on the mounting unit and forms a surface on the same side as the side from which the probe protrudes. The ear-type thermometer according to claim 2, wherein the ear-type thermometer is arranged on a surface of 1.   The mounting function is a mounting band extending from a second surface forming a side surface of the mounting portion, and the measurer's finger is placed on a third surface facing the first surface. 4. The method according to claim 3, wherein when mounted, the finger is wound around in a circumferential direction with respect to an outer peripheral surface of the finger, and is realized by a mounting band that fixes the finger on the third surface. Ear thermometer as described.   5. The regulating member according to claim 4, wherein a defining member is provided on the third surface to define a position of a tip of the finger when the finger of the measurer is placed. Ear thermometer.

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