Ear thermometer probe and ear thermometer

Abstract

The utility model relates to the technical field of temperature measuring equipment, and discloses an ear thermometer probe, which comprises a waveguide assembly and a light transmitting piece, a waveguide channel is arranged on the waveguide assembly, one end of the waveguide channel is a light inlet end, the other end of the waveguide channel is a light outlet end, and the waveguide channel is used for being communicated with a light inlet part on a sensing assembly; the light transmitting piece covers the light inlet end of the waveguide channel and is used for refracting light entering the waveguide channel; the utility model further discloses an ear thermometer which comprises an ear thermometer body and the ear thermometer probe, and the ear thermometer probe is fixedly connected with the ear thermometer body so as to solve the problems that a rear infrared sensor in the ear thermometer is poor in infrared light collection rate and low in measurement accuracy.

Description

Technical Field

[0001] The utility model relates to the technical field of temperature measuring equipment, in particular to an ear thermometer probe and an ear thermometer. Background Art

[0002] Since the eardrum is located close to the human body's temperature regulation center (hypothalamus), its temperature can better reflect the core body temperature of the human body. The ear thermometer is a non-contact body temperature measurement device that is specifically used to measure the temperature near the human eardrum (tympanic membrane) as an indicator of the human core body temperature. Its working principle is: using infrared technology to measure body temperature, it is equipped with an infrared sensor (usually a thermopile sensor) that can detect the infrared radiation emitted by the human eardrum and surrounding tissues. When the ear thermometer probe is aimed at the ear canal, the sensor receives and captures the infrared radiation emitted by the eardrum, converts it into an electrical signal, and after signal amplification, correction and data conversion, the body temperature value is finally calculated and displayed on the display. Therefore, the ear thermometer has the advantages of fast measurement speed, accurate results, easy use, and hygiene. It is particularly suitable for infants, the elderly, and hospitals.

[0003] In the related art, the infrared sensor of the ear thermometer is placed in front and is relatively close to the ear. However, due to the size limitation of the infrared sensor, the infrared measurement port on the gun head of the ear thermometer is relatively large. For some people with smaller ear canals, such as infants and young children, it is difficult for the gun head to be inserted into the ear canal for temperature measurement. The rear-placed sensor can solve this problem well, but after the sensor is placed in the rear, the collection rate of infrared light becomes smaller and the measurement accuracy decreases. Utility Model Content

[0004] In view of this, the utility model provides an ear thermometer probe to solve the problem that the rear infrared sensor in the ear thermometer has poor infrared light collection rate and low measurement accuracy.

[0005] On the one hand, the utility model provides an ear thermometer probe, including a waveguide component and a light-transmitting component, wherein a waveguide channel is provided on the waveguide component, one end of the waveguide channel is a light input end, and the other end of the waveguide channel is a light output end, which is used to communicate with the light input part on the sensor component; the light-transmitting component is covered on the light input end of the waveguide channel, and is used to refract the light entering the waveguide channel.

[0006] Beneficial effects: A light-transmitting component and a waveguide component are arranged at the front end of the sensor component, and the infrared light generated by the human eardrum and surrounding tissues enters the light input part of the sensor component after being refracted by the light-transmitting component and reflected by the waveguide component in turn. The waveguide channel in the waveguide component can extend the effective transmission distance of the infrared light, so that the sensor component is placed at the rear to reduce the outer diameter of the probe, which is suitable for people with smaller ear canals. In this process, the light-transmitting component cooperates with the waveguide component, and the light-transmitting component can refract the infrared light and move the infrared light trajectory backward, thereby reducing the number of reflections of the light in the waveguide component, reducing energy loss, and thus improving the light collection efficiency. The light-transmitting component closes the waveguide component, which can prevent dust and other pollutants from entering the waveguide channel, keeping the inside of the waveguide channel clean and easy to clean.

[0007] In an optional implementation, the light-transmitting element is a filter.

[0008] Beneficial effect: The light-transmitting component is a filter, which can filter out interfering light and improve the accuracy of body temperature detection.

[0009] In an optional embodiment, the ear thermometer probe further includes a sensor component, and a light input portion on the sensor component is connected to the light output end of the waveguide channel.

[0010] Beneficial effect: The sensor component is integrated into the ear thermometer probe, which helps to reduce the overall volume of the ear thermometer and is easy to carry.

[0011] In an optional embodiment, the waveguide component is a light guide tube, and a light reflecting layer is provided on the inner diameter surface of the light guide tube.

[0012] Beneficial effects: The waveguide component is a light guide tube, and a light reflection layer is arranged on the inner diameter surface of the light guide tube. The production is simple, and the light reflection efficiency is high, which can improve the detection accuracy and reduce the cost.

[0013] In an optional embodiment, it also includes a probe shell, which is used to be fixedly connected to the ear thermometer body, the probe shell is in a retractable shape, and an accommodating channel is provided on the probe shell, and the sensor component, the waveguide component and the light-transmitting component are sequentially arranged in the accommodating channel along the retracted and extended direction of the probe shell.

[0014] Beneficial effects: The sensor component, the waveguide component and the light-transmitting component are installed in the accommodating channel in the probe housing, which can facilitate the assembly of the ear thermometer and improve the integrity and overall strength of the ear thermometer; and the probe housing is in a contracted shape and can match the shape of the human ear channel.

[0015] In an optional embodiment, a limiting portion is provided in the accommodating channel at one end close to the light-transmitting member, which is used to limit one side of the light-transmitting member. The end face of the light-emitting end on the waveguide component is in contact with the other side of the light-transmitting member, which is used to limit the light-transmitting member. A plug-in channel is also provided in the waveguide component, and the plug-in channel is connected to the light-emitting end. The light input portion on the sensor component is plugged into the plug-in channel to limit the waveguide component. The end of the sensor component away from the light input portion is limited and fixed by a limiting shell on the ear thermometer body.

[0016] Beneficial effects: the light-transmitting component, the wave component and the sensor component are sequentially crimped and positioned and fixed, which can simplify the limiting structure of the probe housing and improve assembly efficiency.

[0017] In an optional implementation, a light guide hole is provided on the probe housing for inserting a light guide column.

[0018] Beneficial effect: The light guide hole is used to install the light guide column, so as to accurately find the human ear in a dark environment or a poorly lit environment, avoid damage to the human ear by the ear thermometer probe, and improve the convenience and safety of operation.

[0019] In an optional embodiment, a plug-in portion is provided on one end of the probe housing away from the light-transmitting member for plugging with the ear thermometer body.

[0020] Beneficial effect: The setting of the plug-in part can facilitate the connection and assembly of the ear thermometer probe and the ear thermometer body.

[0021] On the other hand, the utility model also provides an ear thermometer, comprising an ear thermometer body and an ear thermometer probe as described in any one of the above embodiments, wherein the ear thermometer probe is fixedly connected to the ear thermometer body.

[0022] Beneficial effect: Since the ear thermometer includes an ear thermometer probe, it has the same effect as the ear thermometer probe, which will not be described in detail here.

[0023] In an optional embodiment, the ear thermometer body is fixedly connected to a limit shell and can be removed. The limit shell contacts an end of the sensor component away from the light-transmitting component to limit and fix the sensor component.

[0024] Beneficial effect: The limiting shell is used to limit and fix the end of the sensor component away from the light-transmitting component. The fixing method is simple and convenient for assemblers to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 This is a front view of an ear thermometer according to an embodiment of the utility model;

[0027] Figure 2 for Figure 1 Cross-section at AA in the middle;

[0028] Figure 3 This is an axial side view of an ear thermometer according to an embodiment of the utility model with half of the ear thermometer body removed;

[0029] Figure 4 This is a schematic structural diagram of a limit housing in an ear thermometer according to an embodiment of the utility model;

[0030] Figure 5 This is a light incident path diagram of an ear thermometer according to an embodiment of the utility model.

[0031] Description of reference numerals:

[0032] 1. Waveguide assembly, 2. Light-transmitting component, 3. Sensor assembly, 4. Probe housing, 5. Ear thermometer body, 6. Light guide column;

[0033] 101, waveguide channel, 102, plug-in channel;

[0034] 301, sensor head, 302, crimping part;

[0035] 401, accommodating channel, 402, limiting portion, 403, light guide hole, 404, plug-in portion;

[0036] 501, a limiting shell, 502, a through hole;

[0037] 5011, cylinder, 5012, end ear, 5013, light guide limiter, 5014, U-shaped groove;

[0038] 601. Limiting ring. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0040] In the related art, the infrared sensor of the ear thermometer is placed in front and is relatively close to the ear. However, due to the size limitation of the infrared sensor, the infrared measurement port on the gun head of the ear thermometer is relatively large. For some people with smaller ear canals, such as infants and young children, it is difficult for the gun head to be inserted into the ear canal for temperature measurement. The rear-placed sensor can solve this problem well, but after the sensor is placed in the rear, the collection rate of infrared light becomes smaller and the measurement accuracy decreases.

[0041] Combine the following Figures 1 to 5 , describing an embodiment of the utility model.

[0042] According to an embodiment of the present utility model, on the one hand, an ear temperature gun probe is provided, such as Figure 2 As shown, it includes a waveguide component 1 and a light-transmitting component 2. A waveguide channel 101 is provided on the waveguide component 1. One end of the waveguide channel 101 is a light-incoming end, and the other end of the waveguide channel 101 is a light-outgoing end, which is used to communicate with the light-incoming part on the sensor component 3; the light-transmitting component 2 is covered on the light-incoming end of the waveguide channel 101, and is used to refract the light entering the waveguide channel 101.

[0043] In some embodiments not shown, the light-transmitting element 2 may be a sheet such as light-transmitting glass or light-transmitting plastic sheet that can refract infrared light, preferably without affecting the transmittance of infrared light.

[0044] It should be noted that the light-transmitting member 2 is covered on the light-incoming end of the waveguide channel 101 , which means that the light-transmitting member 2 can be arranged in contact with one end of the waveguide channel 101 , or can be connected via an adhesive medium, such as glue.

[0045] In this embodiment, a light-transmitting member 2 and a waveguide member 1 are arranged at the front end of the sensor member 3, and the infrared light generated by the eardrum and surrounding tissues of the human body enters the light-entering portion of the sensor member 3 after being refracted by the light-transmitting member 2 and reflected by the waveguide member 1. The waveguide channel 101 in the waveguide member 1 can extend the effective transmission distance of the infrared light, so that the sensor member 3 is placed at the rear to reduce the outer diameter of the probe, which is suitable for people with smaller ear canals. Figure 5As shown, in this process, the light-transmitting member 2 cooperates with the waveguide component 1, and the light-transmitting member 2 can refract the infrared light, causing the infrared light trajectory to move backward, thereby reducing the number of reflections of the light in the waveguide component 1, reducing energy loss, and thus improving the light collection efficiency; and the light-transmitting member 2 closes the waveguide component 1, which can prevent dust and other pollutants from entering the waveguide channel 101, keeping the inside of the waveguide channel 101 clean and easy to clean.

[0046] In one embodiment, the light-transmitting element 2 is a filter, preferably a filter glass.

[0047] In this embodiment, the light-transmitting element 2 is a filter, which can filter out interfering light and improve the accuracy of body temperature detection.

[0048] In one embodiment, Figure 2 As shown, the ear thermometer probe also includes a sensor component 3, and the light input part of the sensor component 3 is connected to the light output end of the waveguide channel 101, wherein the sensor component 3 is an infrared sensor, which is an existing product and can be purchased on the market.

[0049] In this embodiment, the sensor component 3 is integrated into the ear thermometer probe, which helps to reduce the overall volume of the ear thermometer and facilitates portability.

[0050] In one embodiment, the waveguide component 1 is a light guide tube, and a light reflecting layer is provided on the inner diameter surface of the light guide tube. Specifically, the light reflecting layer is a metal-plated layer or a coated infrared light reflecting material layer or other material layer that can improve the infrared light reflection efficiency.

[0051] It should be noted that the light guide tube may be a plastic tube or other tube body, preferably an opaque tube body.

[0052] In this embodiment, the waveguide component 1 is a light guide tube, and a light reflection layer is provided on the inner diameter surface of the light guide tube. The light guide tube is simple to manufacture and has high light reflection efficiency, which can improve detection accuracy and reduce costs.

[0053] In one embodiment, Figures 1-2 As shown, it also includes a probe shell 4, which is used to be fixedly connected to the ear thermometer body 5. The probe shell 4 is in a contracted shape, and an accommodating channel 401 is arranged on the probe shell 4. The sensor component 3, the waveguide component 1 and the light-transmitting component 2 are sequentially arranged in the accommodating channel 401 along the contraction and extension direction of the probe shell 4.

[0054] In this embodiment, the sensor component 3, the waveguide component 1 and the light-transmitting member 2 are installed in the accommodating channel 401 in the probe housing 4, which can facilitate the assembly of the ear thermometer and improve the integrity and overall strength of the ear thermometer; and the probe housing 4 is in a contracted shape and can match the shape of the human ear channel.

[0055] In one embodiment, Figure 2 As shown, a limiting portion 402 (specifically a limiting ring 601) is provided at one end of the accommodating channel 401 close to the light-transmitting member 2, which is used to limit one side of the light-transmitting member 2. The end face of the light-emitting end on the waveguide component 1 is in contact with the other side of the light-transmitting member 2, which is used to limit the light-transmitting member 2. A plug-in channel 102 is also provided in the waveguide component 1, and the plug-in channel 102 is connected to the light-emitting end. The light-entering portion of the sensor component 3 is plugged into the plug-in channel 102, and the waveguide component 1 is limited. The end of the sensor component 3 away from the light-entering portion is limited and fixed by a limiting shell 501 on the ear thermometer body 5.

[0056] In this embodiment, if Figure 2 As shown, the light-transmitting component 2, the wave component and the sensor component 3 are sequentially crimped and positioned and fixed, which can simplify the limiting structure of the probe housing 4 and improve the assembly efficiency.

[0057] In a specific embodiment, Figure 2 As shown, the sensor assembly 3 includes a sensor head 301 and a crimping piece 302. The sensor head 301 is arranged in the plug-in channel 102. The crimping piece 302 is plugged into the plug-in channel 102 and presses against one end of the sensor head 301 away from the light-transmitting piece 2. The limiting shell 501 presses against one end of the crimping piece 302 away from the light-transmitting piece 2.

[0058] In one embodiment, Figures 2-3 As shown, the probe housing 4 is provided with a light guide hole 403 for inserting a light guide column 6, and the light guide column 6 is used to transmit light emitted by the light source for illumination.

[0059] It should be noted that if Figures 2-3 As shown, the light source (not shown in the figure) is generally arranged inside the ear thermometer body 5, the light guide column 6 is in the shape of an elongated cylinder, and a limit ring 601 is arranged on it, and a through hole 502 is arranged at the portion of the ear thermometer body 5 overlapping with the probe shell 4, and the through hole 502 is coaxial with the light guide hole 403, one end of the light guide column 6 is close to the light source, and the other end passes through the through hole 502 on the ear thermometer and the light guide hole 403 on the probe shell 4 in sequence, and at the same time, one side of the limit ring 601 contacts and limits the inner wall surface of the ear thermometer body 5, and the other side of the limit ring 601 contacts and limits the light guide limit piece 5013 fixed on the ear thermometer body 5.

[0060] In this embodiment, the light guide hole 403 is used to install the light guide column 6, so as to accurately find the human ear in a dark environment or a poorly lit environment, avoid damage to the human ear by the ear thermometer probe, and improve the convenience and safety of operation.

[0061] In one embodiment, Figures 2-3As shown, a plug-in portion 404 is provided on one end of the probe housing 4 away from the light-transmitting member 2 for plugging with the ear thermometer body 5 . The plug-in portion 404 is specifically a plug-in clip, and a plug-in hole matching the plug-in clip is provided on the ear thermometer body 5 .

[0062] In this embodiment, the provision of the plug-in portion 404 can facilitate the connection and assembly of the ear thermometer probe and the ear thermometer body 5 .

[0063] According to an embodiment of the present utility model, on the other hand, an ear thermometer is provided, such as Figures 1 to 3 As shown, it includes an ear thermometer body 5 and an ear thermometer probe as in any of the above embodiments, and the ear thermometer probe is fixedly connected to the ear thermometer body 5.

[0064] The ear thermometer body 5 is generally provided with structures such as a battery and a display screen, and the battery is used to power the sensor component 3, the display screen, etc.

[0065] In this embodiment, because the ear thermometer includes an ear thermometer probe, it has the same effect as the ear thermometer probe and is not described in detail here.

[0066] In one embodiment, Figures 2-3 As shown, the ear thermometer body 5 is fixedly connected to the limiting shell 501 and can be disassembled, specifically, by screwing; the limiting shell 501 contacts the end of the sensor component 3 away from the light-transmitting component 2, and is used to limit and fix the sensor component 3.

[0067] Specifically, Figures 2 to 4 As shown, the limiting shell 501 includes a connected cylinder 5011, a light guide limiting member 5013 and an end ear 5012. The cylinder 5011 is stepped to facilitate penetration into the probe housing 4. The light guide limiting member 5013 and the end ear 5012 are both fixedly connected to the end of the cylinder 5011 away from the sensor component 3, wherein there are at least two end ears 5012, and the end ears 5012 are screwed to the ear thermometer body 5 by screws. The light guide limiting member 5013 is provided with a U-shaped groove 5014, and the light guide column 6 is clamped in the U-shaped groove 5014. The catheter limiting member presses the limiting ring 601 on the light guide column 6 onto the inner wall surface of the ear thermometer body 5.

[0068] In this embodiment, the limiting shell 501 is used to limit and fix the end of the sensor component 3 away from the light-transmitting component 2. The fixing method is simple and convenient for assemblers to operate.

[0069] The following is a combination of the specific solutions in all the above embodiments and Figures 1 to 3 , the partial assembly process of the ear thermometer is described, wherein the ear thermometer body 5 is divided into a front shell and a rear cover, the probe shell 4 is connected to the front shell, and a through hole communicating with the accommodating channel 401 is opened on the front shell.

[0070] (1) Connect the probe housing 4 to the front housing of the ear thermometer body 5 through the plug-in portion 404;

[0071] (2) The light-transmitting member 2, the waveguide assembly 1, the sensor head 301, and the crimping member 302 are sequentially installed in the accommodating channel 401 through the through hole on the front housing, wherein the sensor head 301 is installed in the plugging channel 102 in the waveguide assembly 1, and the crimping member 302 is plugged into the plugging channel 102 and pressed against the tail of the sensor head 301;

[0072] (3) Place the limiting shell 501 on the tail of the crimping piece 302 and install it inside the front shell with bolts.

[0073] Thereby completing the assembly.

[0074] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. An ear thermometer probe, characterized in that: include: A waveguide component (1), wherein the waveguide component (1) is provided with a waveguide channel (101), one end of the waveguide channel (101) is a light input end, and the other end of the waveguide channel (101) is a light output end, which is used to communicate with a light input portion on a sensor component (3); and A light-transmitting member (2) is arranged to cover the light-incoming end of the waveguide channel (101) and is used to refract the light entering the waveguide channel (101).

2. The ear thermometer probe according to claim 1, characterized in that: The light-transmitting element (2) is a filter.

3. The ear thermometer probe according to claim 1, characterized in that: It also comprises a sensor component (3), wherein a light input portion on the sensor component (3) is connected to the light output end of the waveguide channel (101).

4. The ear thermometer probe according to claim 1, characterized in that: The waveguide component (1) is a light guide tube, and a light reflection layer is arranged on the inner diameter surface of the light guide tube.

5. The ear thermometer probe according to claim 3, characterized in that: The invention also comprises a probe shell (4), wherein the probe shell (4) is used for being fixedly connected to the ear thermometer body (5), the probe shell (4) is in a contracted shape, and an accommodating channel (401) is arranged on the probe shell (4), and the sensor component (3), the waveguide component (1) and the light-transmitting component (2) are sequentially arranged in the accommodating channel (401) along the contraction and extension direction of the probe shell (4).

6. The ear thermometer probe according to claim 5, characterized in that: A limiting portion (402) is provided in the accommodating channel (401) at one end close to the light-transmitting member (2) for limiting one side of the light-transmitting member (2); the end face of the light-emitting end on the waveguide component (1) contacts the other side of the light-transmitting member (2) for limiting the light-transmitting member (2); a plug-in channel (102) is further provided in the waveguide component (1); the plug-in channel (102) is connected to the light-emitting end; the light-entering portion on the sensor component (3) is plugged into the plug-in channel (102) and limits the waveguide component (1); and the end of the sensor component (3) away from the light-entering portion is fixed by a limiting shell (501) on the ear thermometer body (5).

7. The ear thermometer probe according to claim 5 or 6, characterized in that: The probe housing (4) is provided with a light guide hole (403) for inserting a light guide column (6).

8. The ear thermometer probe according to claim 5 or 6, characterized in that: An inserting portion (404) is provided on one end of the probe housing (4) away from the light-transmitting member (2) for inserting into an ear thermometer body (5).

9. An ear thermometer, characterized in that: include: Ear thermometer body (5); as well as The ear thermometer probe according to any one of claims 1 to 8, wherein the ear thermometer probe is fixedly connected to the ear thermometer body (5).

10. The ear thermometer according to claim 9, characterized in that: The ear thermometer body (5) is fixedly connected to a limiting shell (501) and can be disassembled. The limiting shell (501) contacts an end of the sensor component (3) away from the light-transmitting component (2) and is used to limit and fix the sensor component (3).

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