JP3615359B2 - Ear thermometer - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an ear thermometer.
[0002]
[Prior art]
Conventionally, a thermometer is used to measure body temperature in hospitals and other medical institutions and homes, and a probe (thermometer) is inserted into the ear cavity (the ear canal) to detect infrared rays (heat rays) emitted from the eardrum. An ear-type thermometer that measures body temperature by intensity has been proposed.
[0003]
In this ear-type thermometer, for example, when measuring the body temperature of a plurality of patients, a disposable probe cover that covers the probe and is replaced every time a temperature is attached to the probe due to problems in hygiene management such as infection prevention. The
[0004]
As shown in Japanese Examined Patent Publication No. 6-42872, the probe cover is attached to the probe by fitting the probe cover to the probe to maintain the attached state, or a ring shape formed on the inner surface of the probe cover. The concave portion is fitted into a ring-shaped convex portion formed on the outer surface of the probe, and the mounting state is maintained.
[0005]
However, in such a maintenance of the mounting state by simple fitting, there is a variation in fitting strength, and the mounting state may not be stably maintained. In this case, after the body temperature measurement, when the probe with the probe cover attached is removed from the ear cavity, there may be a problem that only the probe cover remains in the ear cavity.
[0006]
In addition, since the probe cover can be easily removed from the probe, there is an inconvenience that an infant accidentally removes the probe cover and puts it in the mouth.
[0007]
Further, even if the probe cover is not removed from the probe, the probe may be displaced, which causes a decrease in measurement accuracy.
[0008]
In addition, the probe fitted with the probe cover has a tapered shape that tapers toward the distal direction in order to facilitate the insertion into the ear cavity. Depends on the pushing force, and it is difficult to obtain a certain insertion depth. As a result, the reproducibility is poor, the measurement values of the body temperature vary, and there is a disadvantage that the measurement accuracy is lowered. In addition, the insertion depth of the probe into the ear cavity is too deep, and the back of the ear may be damaged. .
[0009]
[Problems to be solved by the invention]
An object of the present invention is to provide an ear-type thermometer that can stabilize the attachment of a probe cover to a probe and can improve the accuracy of temperature measurement.
[0010]
[Means for Solving the Problems]
Such an object is achieved by the present inventions (1) to (6) below.
[0011]
(1) A thermometer body and a probe installed on the thermometer body, a probe cover covering the probe is attached to the probe, and the body temperature is measured by detecting the intensity of infrared rays emitted from the ear. An ear-type thermometer that
A function of fixing mounting of the probe cover to the probe, a function of fixing the probe to the thermometer body, and a ring nut screwed to the thermometer body,
A plurality of grooves are formed on the outer peripheral surface of the ring nut at predetermined intervals in the circumferential direction as anti-slip means for preventing slipping during the fixing operation or the fixing release operation. Ear thermometer.
[0012]
(2) It has a thermometer body and a probe installed on the thermometer body, and a probe cover that covers the probe is attached to the probe, and the body temperature is measured by detecting the intensity of infrared rays emitted from the ear. An ear-type thermometer that
A ring nut having a function of fixing mounting of the probe cover to the probe and a function of fixing the probe to the thermometer main body and screwed to the thermometer main body, and having different shapes or dimensions Comprising at least one ring nut that can be used by replacing
A plurality of grooves are formed on the outer peripheral surface of the ring nut at predetermined intervals in the circumferential direction as anti-slip means for preventing slipping during the fixing operation or the fixing release operation. Ear thermometer.
[0013]
(3) A thermometer main body and a probe installed on the thermometer main body, a probe cover covering the probe is attached to the probe, and the body temperature is measured by detecting the intensity of infrared rays emitted from the ear. An ear-type thermometer that
A ring nut having a function of fixing mounting of the probe cover to the probe and a function of fixing the probe to the thermometer main body, and screwed to the thermometer main body, the protruding length of the probe Comprising at least one ring nut that can be used to replace different ones,
A plurality of grooves are formed on the outer peripheral surface of the ring nut at predetermined intervals in the circumferential direction as anti-slip means for preventing slipping during the fixing operation or the fixing release operation. Ear thermometer.
[0014]
(4) The ear thermometer according to any one of (1) to (3), wherein the ring nut has a function of regulating a depth at which the probe is inserted into the ear cavity.
[0015]
(5) The ring type nut according to (4), wherein the ring nut has a flat end surface, and the end surface abuts in the vicinity of the ear cavity entrance, thereby restricting the insertion depth of the probe into the ear cavity. Thermometer.
[0016]
(6) The ear-type thermometer according to any one of (1) to (5), wherein the probe is detachably installed on the thermometer main body.
[0021]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an ear thermometer of the present invention (hereinafter simply referred to as “thermometer”) will be described in detail based on a preferred embodiment shown in the accompanying drawings.
[0022]
1 and 2 are a front view and a side view, respectively, of the thermometer of the present invention, FIG. 3 is a longitudinal sectional view showing a configuration example of a probe cover attached to the thermometer of the present invention, and FIG. It is the sectional view on the AA line in FIG. 1 which shows the state which attached the probe cover to the probe in the thermometer. For convenience of explanation, the upper side of FIGS. 1 and 2 is called “upper”, the lower side is called “lower”, the upper side of FIGS. 3 and 4 is called “tip”, and the lower side is called “base”.
[0023]
As shown in FIGS. 1, 2, and 4, the thermometer 1 of the present invention is an ear thermometer that detects body temperature by measuring the intensity of infrared rays emitted from the eardrum, and includes a thermometer body 2 having a casing 21. The thermometer main body 2 has a power switch 3 and a display unit 5 installed in front of the thermometer main body 2 and a measurement switch 4 installed in the upper back of the thermometer main body 2.
[0024]
The probe 6 is detachably attached to the thermometer body 2 on the upper front side of the thermometer body 2. As shown in FIG. 4, the support base 7 has a large diameter portion 71 and a small diameter portion 72 on the distal end side thereof, and male screws 73 and 74 are provided on the outer circumferences of the large diameter portion 71 and the small diameter portion 72, respectively. Is formed. The support base 7 is preferably composed of a metal block having good thermal conductivity made of aluminum, copper or the like.
[0025]
On the other hand, the proximal end of the tubular probe 6 has a base 61 that contacts the distal end surface of the large-diameter portion 71, and a female screw 62 that engages with the male screw 74 is formed on the inner surface of the proximal end of the probe 6. Is formed. The probe 6 is supported and fixed to the support base 7 by screwing the male screw 74 and the female screw 62 together. The support base 7 is fixed to a circuit board (not shown), and the circuit board is fixed to the casing 21.
[0026]
The probe 6 has a shape in which the outer diameter gradually decreases toward the tip, and the tip outer peripheral portion (edge) 63 of the probe 6 is in consideration of safety when inserted into the ear cavity. It has a rounded shape.
[0027]
Examples of the material of the probe 6 include resin materials such as ABS resin and styrene resin. Further, an additive such as an antibacterial agent or glass for strengthening can be added to the constituent material of the probe 6.
[0028]
A light guide (waveguide) 8 that guides infrared rays (heat rays) introduced from the tip of the support base 7 to an infrared sensor (temperature detection sensor) 10 is provided upright at the center of the support base 7. The light guide 8 is preferably made of a metal such as copper having good thermal conductivity, and the inner surface thereof is plated with gold.
[0029]
The light guide 8 is covered with a protective sheet 81 so as to cover the opening at the tip. This prevents dust, dust, etc. from entering the light guide 8. The protective sheet 81 has infrared transparency, and examples of the constituent material thereof include the same resin material as the probe cover 11 described later. The film thickness of the protective sheet 81 can be about 0.03 to 0.08 mm, for example.
[0030]
A ring nut (fixing member) 9 is screwed into the large diameter portion 71 of the support base 7. That is, a female screw 91 is formed on the inner surface of the base end side of the ring nut 9, and the female screw 91 is engaged with the male screw 73 of the large-diameter portion 71 so that the ring nut 9 is supported by the support base 7. Fixed.
[0031]
The ring nut 9 has a tapered portion 92 whose outer diameter gradually decreases from the vicinity of the tip of the female screw 91 toward the tip. An engagement portion 93 that engages with the body portion 12 of the probe cover 11 is formed on the inner surface of the taper portion 92. Examples of the material of the ring nut 9 include resin materials such as ABS resin and styrene resin. In addition, an additive such as an antibacterial agent or reinforcing glass can be added to the constituent material of the ring nut 9.
[0032]
When the probe cover 11 is put on the probe 6, the ring nut 9 is attached, and the ring nut 9 is rotated and screwed in a predetermined direction, the body portion 12 of the probe cover 11 is engaged with the inclined portion 64 of the probe 6 and the engaging portion 93 of the ring nut 9. The probe cover 11 is securely fixed to the probe 6.
[0033]
In addition, a flange mounting base or the like is provided around the open end (base end) of the probe cover 11 of the present embodiment, and the probe cover 11 may be fixed by sandwiching the flange or the like between the probe 6 and the ring nut 9. it can.
[0034]
Therefore, the probe cover 11 is not displaced from the probe 6 during body temperature measurement or the like, and high measurement accuracy is maintained. Furthermore, since the probe cover 11 is not easily detached from the probe 6, for example, when the probe 6 is extracted from the ear cavity after measuring the body temperature, only the probe cover 11 remains in the ear cavity. Is reliably prevented.
[0035]
Further, in order to remove the probe cover 11 from the probe 6, the ring nut 9 must be rotated with a considerable force to release the screwing with the large-diameter portion 71, so that the infant accidentally removes the probe cover 11. Inconvenience such as putting in the mouth is also prevented.
[0036]
The tip end surface 94 of the ring nut 9 constitutes a substantially flat surface. When the probe 6 is inserted into the ear cavity, the distal end surface 94 abuts in the vicinity of the ear cavity entrance, and regulates the insertion depth of the probe 6 into the ear cavity to a constant depth. For this reason, measurement under appropriate conditions is always possible, and measurement errors due to variations in the insertion depth into the ear cavity can be prevented, and the depth of the ear is damaged by entering too deeply into the ear cavity of the probe 6. There is no inconvenience.
[0037]
In addition, a plurality of grooves (anti-slip means) 95 exhibiting an anti-slip effect when the ring nut 9 is rotated in the tightening direction or the loosening direction are provided on the outer peripheral surface of the tapered portion 92 of the ring nut 9 in the circumferential direction. It is formed at a predetermined interval.
[0038]
In addition, the same function can be exhibited even if it is not only a recessed part like the groove | channel 95 but a convex part. Further, a high friction material such as rubber may be provided.
[0039]
The infrared sensor 10 is provided with a thermopile (thermocouple row), and a hot junction of the thermopile is installed in the heat collecting part located on the center side via a thermal insulation band, and a cold junction is installed on the outer peripheral side of the thermal insulation band. It has a configuration. Then, a thermopile output signal corresponding to a temperature difference between a hot junction heated by infrared irradiation and a cold junction not irradiated with infrared rays, and a thermistor (not shown) installed near or inside the infrared sensor 10 are output. The body temperature is measured as a function of a signal corresponding to the temperature of the cold junction.
[0040]
Next, a preferred configuration example of the probe cover 11 attached to the probe 6 will be described with reference to FIG.
[0041]
The probe cover 11 has a shape in which the proximal end is open and the distal end is closed. This probe cover 11 is formed on the outer periphery of the cylindrical body 12, the infrared ray transmitting film 14 formed at the distal end of the trunk 12, and protrudes to the distal end side from the film 14. And a ring-shaped lip portion 15.
[0042]
And the trunk | drum 12, the film | membrane 14, and the lip | rip part 15 are preferably integrally formed by the resin material in relation to the manufacturing method mentioned later. Examples of the resin material include polyolefins such as polyethylene, polypropylene, and ethylene-vinyl acetate copolymer, polyesters such as polyethylene terephthalate and polybutylene terephthalate, and styrene resins.
[0043]
The outer diameter and inner diameter of the body 12 are gradually reduced toward the tip. Moreover, the thickness of the trunk | drum 12 is also gradually reduced toward the front-end | tip.
[0044]
Although the thickness of the film | membrane 14 is not specifically limited, About 0.01-0.10 mm is preferable and about 0.05-0.07 mm is more preferable. If the thickness of the film 14 is too thin, depending on the film material, the strength is insufficient and breakage such as tearing is likely to occur, and if the thickness of the film 14 is too thick, the transmittance of infrared rays is reduced. May interfere with accurate body temperature measurement.
[0045]
In the probe cover 11, since the lip portion 15 exists, the film 14 is lowered from the distal end of the probe cover 11 to the proximal end side by a predetermined distance (H). As a result, when the probe cover 11 is attached to the probe 6 and inserted into the ear cavity, the membrane 14 touches the inner surface of the ear cavity or the periphery thereof, or when the probe cover 11 is attached to or detached from the probe 6. Since the finger or the like is prevented from being touched and the surface of the film 14 can be kept clean, higher measurement accuracy can be maintained.
[0046]
The inside of the lip portion 15 has a shape that fits into the tip portion of the probe 6. That is, as shown in FIG. 4, in a state where the probe cover 11 is attached to the probe 6, the lip portion 15 is fitted to the distal end outer peripheral portion 63 of the probe 6. This prevents the tip of the probe cover 11 from being displaced with respect to the probe 6 during insertion into the ear cavity (measurement) or the like, and the membrane 14 is stretched with a constant tension. Since wrinkles and sagging are prevented from occurring, this contributes to improvement in measurement accuracy.
[0047]
Moreover, the tip of the lip portion 15 has a rounded shape. Thus, when inserted into the ear cavity, high safety is ensured without feeling pain or damaging the inner wall of the ear cavity.
[0048]
If the height H of the lip portion 15 is too low, the above-described effect due to the provision of the lip portion 15 will not be sufficiently exhibited. If the height H of the lip portion 15 is too high, other conditions such as the material When the probe cover 11 is molded, there are cases where the thickness of the film 14 becomes non-uniform and the thin portion is likely to be wrinkled or damaged.
[0049]
Therefore, the height H of the lip portion 15 preferably satisfies the relationship of 4 ≦ D / H ≦ 55, where D is the diameter of the film 14.
[0050]
Although the manufacturing method of the probe cover 11 is not specifically limited, If the example is given, it is preferable to manufacture (mold) by the following methods.
[0051]
A resin sheet for forming the probe cover 11 is prepared, and the resin sheet is heated by a heater from below in FIG. 3 of the resin sheet, the resin sheet is sufficiently softened, and the heater is removed. Thereafter, the frustoconical sheet pushing member is brought into contact with the resin sheet from below in FIG. 3, and a female die having a shape corresponding to the outer shape of the probe cover 11 is brought into contact with the resin sheet from above the resin sheet. Then, after the resin sheet is pushed halfway through the female mold by the sheet pushing member, the resin sheet is sucked by a vacuum pump through a pore formed in advance in a portion corresponding to the lip portion of the female mold. As a result, the softened resin sheet is pulled into the female mold and is in close contact with the female mold. In this state, by cooling the resin sheet, the resin sheet is solidified and formed into the internal shape of the female mold. Next, the suction is stopped, and the resin mold molded into the shape of the probe cover 11 is removed by moving the female mold upward. Thereafter, the base end side of the probe cover 11 is cut (punched) to obtain the probe cover 11.
[0052]
As another method, a resin sheet for forming the probe cover 11 is prepared. The resin sheet has a shape corresponding to the inner shape of the probe cover 11 and is heated to a temperature at which the resin sheet is melted or softened. The resin sheet is pressed and deformed from below in FIG. 3, and a similar heating mold having a flat surface corresponding to the film 14 is moved from the top to the bottom in FIG. These parts are clamped, and the clamping pressure is adjusted to obtain a desired film thickness. Thereafter, both molds are removed, the resin sheet deformed into the shape of the probe cover 11 is cooled and solidified, and the proximal end side of the probe cover 11 is cut (punched) to obtain the probe cover 11.
[0053]
In actual manufacture of the probe cover 11, since the resin sheet is lowered vertically by its own weight when heated, it is preferable to manufacture the probe cover with the up and down direction opposite to that in FIG.
[0054]
Needless to say, the configuration of the probe cover 11 is not limited to that shown in FIG.
[0055]
The thermometer 1 of the present invention can be used by replacing two or more ring nuts having different shapes or dimensions. FIG. 5 is a longitudinal sectional view showing a state in which a ring nut having a different shape and height from the ring nut shown in FIG. 4 is mounted. That is, the ring nut 90 shown in FIG. 5 has a higher tapered portion 92 and a smaller outer diameter at the tip compared to the ring nut 9 shown in FIG. is there. When this ring nut 90 is mounted, the protruding length of the probe 6 from the distal end surface 94 is set shorter than that in the configuration of FIG. 4, so that the insertion depth of the probe 6 into the ear cavity is shortened.
[0056]
In this way, since ring nuts having different shapes or dimensions can be used by being exchanged, the insertion depth of the probe 6 into the ear cavity, the outer diameter of the probe 6 and the like are set to appropriate conditions according to age and individual differences. Can be set, and in each case, the measurement accuracy can be improved.
[0057]
In addition, as a replaceable ring nut, the height may be the same and the thing of the shape of a front-end | tip part or the area of the front-end | tip surface 94 may differ, for example.
[0058]
Next, the usage method of the thermometer 1 is demonstrated.
As described above, the probe 6 is screwed and attached to the small diameter portion 72 of the support base 7 of the thermometer main body 2, and the probe cover 11 is put on the probe 6. Next, from there, the selected ring nut 9 or 90 is inserted and screwed into the large-diameter portion 71 of the support base 7. As a result, the body 12 of the probe cover 11 is held between the inclined portion 64 of the probe 6 and the engaging portion 93 of the ring nut 9 or 90, and the probe cover 11 is fixed to the probe 6. Thereby, the mounting of the probe cover 11 is completed.
[0059]
Next, the power switch 3 is turned on, and after a predetermined time has passed, the thermometer body 2 is grasped, and the probe 6 encapsulated by the probe cover 11 is inserted into the ear cavity.
[0060]
Next, the measurement switch 4 is pressed for a predetermined time. Thereby, the body temperature is measured. That is, infrared rays (heat rays) radiated from the eardrum are sequentially transmitted through the membrane 14 and the protective sheet 81, introduced into the light guide 8, and repeatedly reflected on the inner surface to reach the infrared sensor 10.
[0061]
Then, as described above, the intensity of the infrared light received by the infrared sensor 10 is converted into a temperature, and the body temperature is detected. The detected body temperature is displayed on the display unit 5.
[0062]
FIG. 6 is a longitudinal sectional view in the vicinity of a probe showing another embodiment of the thermometer of the present invention. In the thermometer shown in the figure, the ring nut has a function of fixing the probe and the probe cover to the thermometer body at the same time. The following description will focus on differences from the embodiment shown in FIGS.
[0063]
The probe 6 is detachably attached to the thermometer body 2 on the upper front side of the thermometer body 2.
[0064]
The support base 7 has a large-diameter portion 71 having a male screw 73 formed on the outer periphery, and a small-diameter portion 72 on the tip side. A ring-shaped groove 711 is formed at the tip of the large diameter portion 71. Further, the small diameter portion 72 is tapered so that it can be inserted into the inside of the proximal end of the probe 6.
[0065]
A base 61 is formed at the proximal end of the probe 6. The base end of the base 61 has a shape that fits into the groove 711. That is, for example, a ring-shaped protrusion 611 is formed.
[0066]
The probe 6 has a shape in which the outer diameter gradually decreases toward the tip, and the tip outer peripheral portion 63 of the probe 6 is rounded in consideration of safety when inserted into the ear cavity. It has a shape.
[0067]
A light guide (waveguide) 8 similar to the above is erected at the center of the support base 7. The light guide 8 is covered with a protective sheet 81 similar to the above so as to cover the opening at the tip.
[0068]
The protective sheet 81 is sandwiched between abacus-shaped ferrules (protective sheet fixing members) 82 inserted through the light guide 8 and fixed in a tension state. The base end portion of the ferrule 82 is inserted into a recess 721 formed at the tip of the small diameter portion 72.
[0069]
A ring nut 96 similar to that described above is screwed into the large-diameter portion 71 of the support base 7. That is, a female screw 91 is formed on the inner surface of the base end side of the ring nut 96, and the female screw 91 is engaged with the male screw 73 of the large-diameter portion 71 so that the ring nut 96 is supported by the support base 7. Fixed.
[0070]
The ring nut 96 has a tapered portion 92 whose outer diameter gradually decreases from the vicinity of the distal end of the female screw 91 toward the distal end, and an engaging portion 93 that engages with the probe cover 11 is formed on the inner surface of the tapered portion 92. Is formed.
[0071]
The protrusion 611 is fitted in the groove 711 in a state where the probe cover 11 is put on the probe 6. Next, when the ring nut 96 is attached and rotated and screwed in a predetermined direction, the probe cover 11 is engaged with the engaging portion 93 and the base portion 61 is engaged with the large-diameter portion 71 of the support base 7 and the ring nut 9. The probe 6 is securely fixed to the thermometer body 2 by being sandwiched between the joint portions 93. Thereby, the same effect as described above can be obtained.
[0072]
In the state where the probe 6 and the probe cover 11 are fixed to the thermometer main body 2 by screwing the ring nut 96, the outer periphery of the ferrule 82 is pressed against the inner surface of the probe 6, and the ferrule 82 is pressed. It receives stress in the central axis direction and the proximal direction. As a result, the protective sheet 81 is pulled in the proximal direction, and at least a portion of the protective sheet 81 that shields at least the distal end opening of the light guide 8 is in a tension state without wrinkles.
[0073]
The front end surface 94 of the ring nut 96 forms a substantially flat surface, and has the function of regulating the insertion depth of the probe 6 into the ear cavity to a constant depth, as described above.
[0074]
In addition, a plurality of grooves (slip prevention means) 95 similar to those described above are formed at predetermined intervals in the circumferential direction on the outer peripheral surface of the tapered portion 92 of the ring nut 96.
[0075]
In addition, a flange mounting base or the like is provided around the open end (base end) of the probe cover 11 of the present embodiment, and the probe cover 11 may be fixed by sandwiching the flange or the like between the probe 6 and the ring nut 9. it can.
[0076]
Moreover, the wide part of the copper part 12 of the probe cover 11 can be clamped by making the engaging part 93 engaged with the probe cover 11 of the ring nut 96 into surface contact.
[0077]
Also in the present embodiment, it is possible to replace two or more ring nuts having different shapes or dimensions as described above.
[0078]
In the thermometer having the above-described configuration, the probe 6 and the probe cover 11 can be attached to and detached from the thermometer body 2 at the same time, so that there is an advantage that the operation is easy.
[0079]
Further, since it is not necessary to form a screw on the inner surface of the probe 6, there is an advantage that cleaning after the probe 6 is removed becomes easy.
[0080]
As mentioned above, although the thermometer of this invention was demonstrated based on the Example shown to an accompanying drawing, this invention is not limited to this.
[0081]
In addition, the probe cover may not have a lip portion, or may be configured by joining a plurality of members.
[0082]
【The invention's effect】
As described above, according to the thermometer of the present invention, the mounting of the probe cover to the probe can be stabilized by providing the ring nut. In particular, since the probe cover is not easily detached from the probe, for example, when the probe is removed from the ear cavity after temperature measurement, the problem that only the probe cover remains in the ear cavity is reliably prevented. The In addition, since the screwing member is composed of a ring nut or the like, inconveniences such as an infant accidentally removing the probe cover and putting it in the mouth are prevented.
[0083]
In the case of using different ring nuts, the insertion depth of the probe into the ear cavity can be set to an appropriate condition according to age and individual differences.
[0084]
In addition, when the ring nut has a function of regulating the insertion depth of the probe into the measurement site, it is possible to prevent measurement errors due to fluctuations in the insertion depth of the probe into the ear cavity and It is possible to prevent the inconvenience that the depth of the ear is too deep and the back of the ear is damaged.
[0085]
As described above, since the body temperature can be measured under more appropriate measurement conditions without causing the probe cover to be detached or displaced, the measurement accuracy is improved and the safety is high.
[Brief description of the drawings]
FIG. 1 is a front view of a thermometer according to the present invention.
FIG. 2 is a side view of the thermometer of the present invention.
FIG. 3 is a longitudinal sectional view showing a configuration example of a probe cover used in the thermometer of the present invention.
4 is a cross-sectional view taken along line AA in FIG. 1 with a probe cover attached. FIG.
5 is a longitudinal sectional view showing a state where a ring nut different from the ring nut shown in FIG. 4 is mounted. FIG.
FIG. 6 is a longitudinal sectional view in the vicinity of a probe showing another embodiment of the thermometer of the present invention.
[Explanation of symbols]
1 Thermometer
2 Thermometer body
21 Casing
3 Power switch
4 Measurement switch
5 display section
6 Probe
61 Base
611 Projection
62 Male Screw
63 Tip outer periphery
64 slope
7 Support stand
71 Large diameter part
711 groove
72 Small diameter part
721 recess
73, 74 Male screw
8 Light guide
81 Protective sheet
82 Ferrule
9 Ring nut
90 Ring nut
91 female screw
92 Tapered part
93 engaging part
94 Tip
95 groove
96 Ring nut
10 Infrared sensor
11 Probe cover
12 Torso
14 Membrane
15 Lip part

Claims (6)

An ear type comprising a thermometer body and a probe installed on the thermometer body, and a probe cover that covers the probe is attached to the probe, and the body temperature is measured by detecting the intensity of infrared rays emitted from within the ear. Thermometer,
A function of fixing mounting of the probe cover to the probe, a function of fixing the probe to the thermometer body, and a ring nut screwed to the thermometer body,
A plurality of grooves are formed on the outer peripheral surface of the ring nut at predetermined intervals in the circumferential direction as anti-slip means for preventing slipping during the fixing operation or the fixing release operation. Ear thermometer. An ear type comprising a thermometer body and a probe installed on the thermometer body, and a probe cover that covers the probe is attached to the probe, and the body temperature is measured by detecting the intensity of infrared rays emitted from within the ear. Thermometer,
A ring nut having a function of fixing mounting of the probe cover to the probe and a function of fixing the probe to the thermometer main body and screwed to the thermometer main body, and having different shapes or dimensions Comprising at least one ring nut that can be used by replacing
A plurality of grooves are formed on the outer peripheral surface of the ring nut at predetermined intervals in the circumferential direction as anti-slip means for preventing slipping during the fixing operation or the fixing release operation. Ear thermometer. An ear type comprising a thermometer body and a probe installed on the thermometer body, and a probe cover that covers the probe is attached to the probe, and the body temperature is measured by detecting the intensity of infrared rays emitted from within the ear. Thermometer,
A ring nut having a function of fixing mounting of the probe cover to the probe and a function of fixing the probe to the thermometer main body, and screwed to the thermometer main body, the protruding length of the probe Including at least one ring nut that can be used by exchanging different ones,
A plurality of grooves are formed on the outer peripheral surface of the ring nut at predetermined intervals in the circumferential direction as anti-slip means for preventing slipping during the fixing operation or the fixing release operation. Ear thermometer. The ear-type thermometer according to any one of claims 1 to 3, wherein the ring nut has a function of regulating a depth at which the probe is inserted into the ear cavity. The ear-type thermometer according to claim 4, wherein the ring nut has a flat end surface, and the end surface abuts in the vicinity of an ear cavity entrance, thereby restricting an insertion depth of the probe into the ear cavity. The ear-type thermometer according to claim 1, wherein the probe is detachably installed on the thermometer main body.

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