CN215305900U - Blood oxygen monitoring earmuff and system - Google Patents
Blood oxygen monitoring earmuff and system Download PDFInfo
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- CN215305900U CN215305900U CN202023084469.8U CN202023084469U CN215305900U CN 215305900 U CN215305900 U CN 215305900U CN 202023084469 U CN202023084469 U CN 202023084469U CN 215305900 U CN215305900 U CN 215305900U
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Abstract
The utility model provides a blood oxygen monitoring earmuff and a system, wherein the blood oxygen monitoring earmuff comprises: the ear muff body and the blood oxygen monitoring module; the earmuff body comprises an earcap and an earcushion, and the earmuff cushion is provided with a monitoring hole; the blood oxygen monitoring module is arranged inside the ear muff body and comprises a photoelectric probe and an acquisition processing module, the photoelectric probe penetrates through the monitoring hole and is arranged on the inner surface of the ear cushion, and the acquisition processing module is arranged on the inner wall of the ear cover; the acquisition processing module is connected with the photoelectric probe; the photoelectric probe is used for acquiring blood oxygen signals; the acquisition processing module is used for receiving the blood oxygen signal and processing the blood oxygen signal to obtain a blood oxygen saturation value. The utility model is integrated on the ear muffs, has higher secrecy and does not occupy space; the test position is more static at the ear than other positions such as fingers and arms, and can monitor for a long time, and the stability and accuracy of the measurement result are higher.
Description
Technical Field
The utility model relates to the technical field of medical equipment, in particular to an earmuff and a system for monitoring blood oxygen.
Background
At present, pilots in China generally directly supply oxygen under certain pressure by using oxygen masks in the flight process and do not monitor the actual blood oxygen state of the pilots.
In the prior art, there are two main ways for monitoring the blood oxygen saturation: finger-clipped transmission-type blood oxygen monitoring and forehead reflection-type blood oxygen monitoring. The blood oxygen saturation is usually in a dynamic range, and can be achieved through long-time and continuous wearing to obtain good monitoring effect. The existing finger-clip penetration type blood oxygen monitoring mode can influence the execution of the battle task of a pilot. The forehead reflection type blood oxygen monitoring device is fixed on the forehead head of a patient, so that the driving visual field of a pilot is easily influenced, and the pilot can feel uncomfortable. Moreover, the positions of fingers, forehead and the like need to be moved when the pilot performs a task, so that the stability and accuracy of the measurement result are low.
Therefore, there is a need for an ear muff and system for blood oxygen monitoring to solve the above problems.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects and shortcomings in the prior art, the utility model aims to provide an ear muff and a system for monitoring blood oxygen, so as to solve the problems that other tasks executed by a user are influenced when blood oxygen monitoring is carried out in the prior art, discomfort is brought to the user, and the stability of a measurement result is low.
The technical problem to be solved by the utility model is realized by adopting the following technical scheme:
a blood oxygen monitoring earmuff comprising: the ear muff body and the blood oxygen monitoring module; the earmuff body comprises an earcap and an earcushion, and the earcushion is provided with a monitoring hole; the blood oxygen monitoring module is arranged in the ear muff body and comprises a photoelectric probe and an acquisition processing module, the photoelectric probe passes through the monitoring hole and is arranged on the inner surface of the ear pad, and the acquisition processing module is arranged on the inner wall of the ear cover; the acquisition processing module is connected with the photoelectric probe; the photoelectric probe is used for acquiring blood oxygen signals; the acquisition processing module is used for receiving the blood oxygen signal and processing the blood oxygen signal to obtain a blood oxygen saturation value.
In a preferred embodiment of the present invention, the above-mentioned photoelectric probe includes: the sensor, the flexible circuit board and the soft sleeve; the soft sleeve is provided with a mounting hole, and the sensor is mounted in the mounting hole; one end of the flexible circuit board penetrates through the soft sleeve to be connected with the sensor, and the other end of the flexible circuit board is connected with the acquisition processing module.
In a preferred embodiment of the present invention, the acquisition processing module includes: a processor circuit board and a flexible antenna; the processor circuit board is arranged on the inner wall of the ear cover, is connected with the photoelectric probe and is connected with an ear cover connector arranged on the ear cover through a cable; the flexible antenna is arranged on the inner wall of the ear shield through single-side gum and is connected with the processor circuit board through a cable.
In a preferred embodiment of the present invention, the flexible circuit board of the optoelectronic probe is detachably connected to the processor circuit board.
In a preferred embodiment of the present invention, the processor circuit board is provided with a drawer-type connector; one end of the flexible circuit board, which is connected with the processor circuit board, is provided with a drawer type plug-in which is matched with the drawer type connector.
In a preferred embodiment of the present invention, the blood oxygen monitoring earmuff further comprises: the indicating lamp is connected with the acquisition processing module; the indicator light is used for transmitting light signals to the outside of the ear muff main body.
In a preferred embodiment of the present invention, the indicator light is disposed in the ear cap or in the wall of the ear cap; a light guide hole is arranged in the ear cover wall; the light signal that the pilot lamp sent transmits outside the ear muff main part through the leaded light hole.
In a preferred embodiment of the present invention, the blood oxygen monitoring earmuff further comprises a light guide and a limiting groove; the limiting groove is arranged on the inner wall of the ear cover and is positioned below the indicator light; the light guide part is installed in the limiting groove in a matching mode and used for conducting light of the indicating lamp, a protruding portion is arranged on the light guide part, the protruding portion is installed in the light guide hole in a matching mode, and a notch is further formed in the light guide part and used for accommodating the indicating lamp.
In a preferred embodiment of the present invention, the inner wall of the ear cap is further provided with a fixing block and a connecting member matched with the fixing block; one end that flexible circuit board and collection processing module are connected is equipped with at least one fixed orifices, and the connecting piece passes the fixed orifices and fixes flexible circuit board on the fixed block for thereby prevent to take place not hard up and break away from in the connection between flexible circuit board and the collection processing module.
A blood oxygen monitoring system comprises the blood oxygen monitoring earmuff.
The technical effect achieved by adopting the technical scheme is as follows: the blood oxygen monitoring module is integrated on the ear muffs, so that the privacy is high and the space is not occupied; the blood oxygen test position is more static than other positions such as fingers and the like at the superficial temporal artery, and the stability and the accuracy of the measurement result are higher. And be applied to the ear muff, wear comfortable not have the foreign matter and feel, do not influence other operations of user, sustainable long-time wearing test.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the following preferred embodiments are specifically described in detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the utility model and together with the description, serve to explain the principles of the utility model.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
FIG. 1 is a cross-sectional view of a blood oxygen monitoring ear cup in accordance with an embodiment of the present invention;
FIG. 2 is a schematic view of a blood oxygen monitoring device according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of an optoelectronic probe according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an acquisition processing module according to an embodiment of the present invention;
FIG. 5 is an inside cross-sectional view of an ear cap of an oximetry ear cup in accordance with an embodiment of the present invention;
fig. 6 is a flowchart illustrating blood oxygen saturation monitoring according to an embodiment of the present invention.
Detailed Description
To further illustrate the technical measures and effects taken by the present invention to achieve the intended purpose, embodiments of the present invention will be described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below are only a part of the embodiments of the present invention, and not all of them. All other embodiments that can be obtained by a person skilled in the art based on the embodiments of the present invention without any inventive step belong to the scope of the embodiments of the present invention. While the present invention has been described in connection with the preferred embodiments, it is to be understood that the utility model is not limited to the disclosed embodiments, but is intended to cover various modifications, equivalent arrangements, and specific embodiments thereof.
The blood oxygen saturation is the concentration of oxyhemoglobin in blood, which is an important physiological parameter of respiratory cycle, so the detection of the blood oxygen saturation (SaO2) can estimate the oxygen carrying capacity of oxyhemoglobin in the lung, which is an important physiological index reflecting the oxygen deficiency of the organism, and when the organism is oxygen deficient to a heavier degree, the change of the blood oxygen saturation can be obviously reflected through data.
According to Beer-Lambert's law, different hemoglobins in blood have different absorbances for different wavelengths of irradiated light, and studies have shown that the difference in absorbance of light at 940nm and 660nm is greatest between two substances, reduced hemoglobin (Hb) and oxygenated hemoglobin (HbO 2). Therefore, the wearable noninvasive blood oxygen monitoring can calculate the blood oxygen saturation through reflected light intensity with the wavelength of 660nm and 940nm, and the main means is photoplethysmography (PPG).
The collected electrical signals are divided into Direct Current (DC) and Alternating Current (AC) signals. When dealing with a quiescent state, the AC signal is derived in part from the contraction and expansion of blood vessels that vary simultaneously with the human heart, theoretically as skin, bone, veins, and tissue objects absorb constantly, i.e., are DC signals. When the blood oxygen saturation degree changes, the ratio of AC660/AC940 also changes, or the ratio of power, the size of the ratio is the characteristic value R for judging the blood oxygen saturation degree, and the blood oxygen saturation degree value can be obtained according to the R.
The blood oxygen saturation detection device is used for detecting the blood oxygen saturation in the ear region of a human body, such as the superficial temporal artery, the blood oxygen monitoring module 100 is arranged in a flexible package, the blood oxygen monitoring module 100 is soft and elastic and is hidden and integrated in an earmuff, the device can be applied to an earmuff of a pilot or an earmuff type earphone worn in daily life, a wearer feels comfortable when wearing the device, and continuous detection can be carried out for a long time.
As shown in fig. 1 to fig. 6, the present invention provides an ear muff for monitoring blood oxygen, which comprises: an earmuff body 30 and a blood oxygen monitoring module 100; the earmuff body 30 comprises an earcap 32 and an earmuff pad 31, the earmuff pad is provided with a monitoring hole, wherein the earmuff pad 31 comprises a leather sheath layer and filler; the blood oxygen monitoring module 100 is installed inside the ear muff body 30, and comprises a photoelectric probe 10 and an acquisition processing module 20, wherein the photoelectric probe 10 is installed on the inner surface of leather of the ear pad 31 through a monitoring hole, and the acquisition processing module 20 is installed on the inner wall 321 of the ear cap; the acquisition processing module 20 is connected with the photoelectric probe 10, and the earmuff connector 23 is connected with a power supply; the photoelectric probe 10 is used for collecting blood oxygen signals; the acquisition processing module 20 is configured to receive the blood oxygen signal, process the blood oxygen signal to obtain a blood oxygen saturation value, and send the blood oxygen saturation value to the receiving terminal.
Specifically, the blood oxygen monitoring earmuff of the embodiment further comprises: ear muff connector 23 and power, ear muff connector 23 sets up on ear lid 32, respectively in with acquisition and processing module 20 and power connection.
The photoelectric probe 10 is matched with the superficial temporal artery of the ear in the installation area of the ear pad 31, the position of the photoelectric probe 10 is not limited to the superficial temporal artery, and flexible design can be carried out according to the position of the artery of the human body in the ear area. Compared with other positions such as fingers and wrists, the ear area is more static, and the stability and the accuracy of the measurement result are higher. Moreover, the blood oxygen monitoring module 100 is integrated on the ear muffs, so that the privacy is high and the space is not occupied.
In this embodiment, the photoelectric probe 10 converts the collected optical signal into a blood oxygen signal; the acquisition processing module 20 amplifies the received blood oxygen signal, performs analog-to-digital conversion, reads the amplified signal into a Micro Control Unit (MCU), and the MCU buffers and filters the data to calculate the characteristic value of blood oxygen saturation, and substitutes the characteristic value into a blood oxygen calibration formula to calculate the blood oxygen saturation value. And then transmits the blood oxygen data to a receiving end in real time through Bluetooth. Blood oxygen monitoring module 100 is applied to devices such as earmuff earphone for the person of wearing is comparatively comfortable when wearing, and can carry out continuous detection for a long time, and measuring result surveys stability and accuracy higher.
The photoelectric probe 10 is provided on the ear pad 31 attached to the ear in the ear muff body 30, and includes: a sensor 13, a Flexible Circuit Board 11(FPC, Flexible Printed Circuit Board), and a Flexible cover 12. The soft sleeve 12 is provided with a mounting hole, and the sensor 13 is mounted in the mounting hole. One end of the flexible circuit board 11 passes through the soft sleeve 12 and is connected with the sensor 13, the other end of the flexible circuit board 11 is connected with the acquisition processing module 20, and the sensor can be a patch type blood oxygen saturation detection sensor. The sensor 13 and the flexible circuit board 11 can be used as inserts to be placed in a die to be integrally formed, the upper portion and the lower portion of the sensor can be pasted and assembled, the flexible circuit board 11 is locally reinforced on the back face (connected area with the sensor 13) of a bonding pad of the sensor 13, the sensor 13 is prevented from being disconnected with the flexible circuit board 11, and the reliability of the sensor 13 is guaranteed.
In the present embodiment, the sensor 13 includes: the infrared LED and the red LED can respectively emit red light and infrared light with different wavelengths, and the red light and the infrared LED are alternately switched on and off according to fixed frequency. The detector can collect the optical signal, convert the optical signal into the blood oxygen signal, and then transmit the collected blood oxygen signal to the collection processing module 20 through the flexible circuit board 11. Sensor 13 is installed in soft cover 12 for soft cover 12 becomes the outer structural component of sensor 13, plays the effect of buffering, protection sensor 13, and the effectual sensor 13 that avoids damages has satisfied the demand of wearing the travelling comfort moreover. Wherein the soft cover 12 is made of elastomer such as silica gel, resin, etc.
Further, the acquisition processing module 20 includes: a processor circuit board 21 and a flexible antenna 22; the processor circuit board 21 is mounted on the inner wall 321 of the ear cap, connected with the photoelectric probe 10, and connected with the ear muff connector 23 through a cable; the flexible antenna 22 is arranged on the inner wall 321 of the ear cup through single-sided adhesive, and is connected with the processor circuit board 21 through a cable. Wherein, the collection processing module 20 is installed in the earmuff in an integrated manner, so that the integrated design is simplified, and the external interference factors caused by integration are reduced.
In this embodiment, the processor circuit board 21 is integrated with an analog-to-digital conversion unit, a signal amplification unit, an MCU, a bluetooth unit, and the like. The units on the processor circuit board 21 can process the blood oxygen signal collected by the photoelectric probe 10 to obtain a blood oxygen saturation value, and then the blood oxygen saturation value is transmitted to the receiving end or the monitoring end through the flexible antenna 22.
Further, one end of the flexible circuit board 11 of the photoelectric probe 10 is detachably connected to the processor circuit board 21 of the acquisition and processing module 20. This application, can adopt the earpad 31 of equidimension not according to different personnel, when gathering processing module 20 and damaging, also need change moreover. Therefore, the detachable connection of the flexible circuit board 11 and the processor circuit board 21 facilitates the replacement of the ear pad 31 and the acquisition processing module 20 (the replacement of the photoelectric probe 10 is performed together with the replacement of the ear pad 31), which is beneficial to saving cost.
Further, a drawer-type connector 212 is disposed on the processor circuit board 21; the end of the flexible circuit board 11 connected to the processor circuit board 21 is provided with a drawer-type connector (not shown) that mates with the drawer-type connector 212. In this embodiment, one end of the flexible circuit board 11 is provided with a protrusion 111, and the protrusion 111 is provided with a drawer type insert (not shown) matching with the drawer type connector 212.
Further, the inner wall 321 of the ear cover is further provided with a fixing block 28 and a connecting piece 24 matched with the fixing block 28; at least one fixing hole 112 is formed at one end of the flexible circuit board 11 connected with the acquisition processing module 20, and the connecting piece 24 penetrates through the fixing hole 112 to fix the flexible circuit board 11 on the fixing block 28.
In this embodiment, one end of the flexible circuit board 11 is connected to the sensor 13 mounted on the inner surface of the leather cover of the ear pad 31, and then detachably connected to the processor circuit board 21 mounted in the ear cover 32 through the ear pad 31. The end of the flexible circuit board 11 connected to the processor circuit board 21 is provided with a protrusion 111, the protrusion 111 is provided with a drawer type connector (not shown), and the processor circuit board 21 is provided with a drawer type connector 212 matching with the drawer type connector (not shown). At least one fixing hole 112 is formed behind the protrusion 111 of the flexible circuit board 11, an internal thread is formed on the fixing block 28, and an external thread matched with the internal thread is formed at one end of the connecting member 24. The fixing block 28 and the connecting member 24 are detachably connected by a thread, so that the flexible circuit board 11 is fixed by a screw, that is, the flexible circuit board 11 is fixed on the fixing block 28 after one end of the external thread of the connecting member 24 passes through the fixing hole 112 on the flexible circuit board 11 and is detachably connected with the internal thread on the fixing block 28, so as to prevent the flexible circuit board 11 and the acquisition processing module 20 from being connected to each other in a loose manner.
Further, the blood oxygen monitoring earmuff further comprises: indicator light 211, indicator light 211 is connected with collection processing module 20. Wherein the indicator light can be arranged on the processor circuit board 21 and also in the wall of the ear cover 32. The indicator light 211 can transmit the emitted light signal to the outside of the earmuff body 30 for self-checking before testing, for example, a finger is stuck to the photoelectric probe 10 for self-checking, the indicator light 211 emits green light to indicate normal, and emits red light to indicate abnormal. Specifically, the indicator light 211 may be, but not limited to, a side-emitting LED, and may also be a positive-emitting LED.
Further, a light guide hole 27 is provided in the wall of the ear cap 32; the light signal emitted from the indicator light 211 is transmitted to the outside of the earmuff body 30 through the light guide hole 27.
Further, the blood oxygen monitoring earmuff further comprises a light guide part 26 and a limiting groove 25; the limiting groove 25 is arranged on the inner wall 321 of the ear cover and is positioned below the indicator light 211; light guide 26 matches and installs in spacing groove 25 for the light that the conduction pilot lamp 211 sent, is provided with bulge 261 on the light guide 26, and bulge 261 matches and installs in leaded light hole 27, still is provided with the breach on the light guide 26, is used for acceping pilot lamp 211.
In this embodiment, the limiting groove 25 is disposed on the ear cap inner wall 321 below the indicator light 211 disposed on the processor circuit board 21. The limiting groove 25 is used for placing and fixing the position of the light guide piece 26, the cross section of the limiting groove 25 is of a square three-dimensional structure, the height of the limiting groove 25 can be different, the inward curvature of the inner wall 321 of the ear cover changes, and the larger the inward curvature is, the smaller the height of the inward curvature is. Of course, the stopper groove 25 may have another three-dimensional shape such as a triangular, rectangular, or irregular shape in cross section. The shape of the light guide 26 is matched with the mounting position limiting groove 25 and is designed into a special-shaped structure and can be compressed through the processor circuit board 21; the convex portion 261 of the light guide 26 is designed to be a cylindrical three-dimensional structure matching with the light guide hole 27, and certainly, the light guide hole 27 and the convex portion of the light guide 26 may be three-dimensional structures with other shapes such as a triangle or a rectangle in cross section; the notch of the light guide 26 is a shaped structure matching the shape of the indicator light 211. Wherein, leaded light 26 material can be translucent silicon rubber, has both satisfied the leaded light requirement, satisfies the sealed of ear muff trompil department again, dustproof and waterproof.
According to the blood oxygen monitoring earmuff, the blood oxygen monitoring device is integrated on the earmuff, the patch type blood oxygen saturation detection sensor is adopted, and when a user wears the earmuff, a patch of the blood oxygen saturation detection sensor can be tightly attached to the superficial temporal artery of a pilot, so that the wearing comfort of the pilot is guaranteed, and the detection accuracy is also guaranteed.
The utility model also provides a blood oxygen monitoring system, which comprises the blood oxygen monitoring earmuff. The patch of sensors 13 of the photoelectric probe 10 may be in close proximity to the superficial temporal artery of the user when the user wears the earmuff. When the device is used, the acquisition processing module 20 drives the red light and the infrared LED to be alternately switched on and off according to fixed frequency, and the detector converts the acquired electric signals into blood oxygen signals and then sends the blood oxygen signals to the acquisition processing module 20. The acquisition processing module 20 amplifies the received blood oxygen signal, performs AD conversion, reads into the MCU, and the MCU buffers and filters the data to calculate the characteristic value R of the blood oxygen saturation, and then substitutes the characteristic value R into the blood oxygen calibration formula to calculate the blood oxygen saturation value. And finally, the acquisition processing module 20 transmits the data to the receiving terminal in real time through the Bluetooth unit. The real-time monitoring of the actual blood oxygen state of the user can be carried out for a long time.
In this document, the terms of upper, lower, left, right, front, rear and the like are used to define the positions of the structures in the drawings and the positions of the structures relative to each other, and are only used for the sake of clarity and convenience in technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims. It is also to be understood that the terms "first" and "second," etc., are used herein for descriptive purposes only and are not to be construed as limiting in number or order.
The present invention is described in detail with reference to the accompanying drawings, but the present invention is not limited to the details of the above embodiments, the above embodiments and the accompanying drawings are exemplary, the modules or processes in the drawings are not necessarily essential to the implementation of the embodiments of the present invention, and should not be construed as limiting the present invention, and any simple modification, equivalent change and modification of the above embodiments according to the technical spirit of the present invention still fall within the protection scope of the technical solution of the present invention.
Claims (10)
1. An ear muff for monitoring blood oxygen, which is characterized by comprising: the ear muff body and the blood oxygen monitoring module; the earmuff body comprises an earcap and an earcushion, and the earmuff cushion is provided with a monitoring hole; the blood oxygen monitoring module is arranged inside the ear muff body and comprises a photoelectric probe and an acquisition processing module, and the photoelectric probe passes through the monitoring hole and is arranged on the inner surface of the ear cushion; the acquisition processing module is connected with the photoelectric probe; the photoelectric probe is used for acquiring blood oxygen signals; the acquisition processing module is used for receiving the blood oxygen signal and processing the blood oxygen signal to obtain a blood oxygen saturation value.
2. The blood oxygen monitoring ear cup of claim 1, wherein the photoelectric probe comprises: the sensor, the flexible circuit board and the soft sleeve;
the soft sleeve is provided with a mounting hole, and the sensor is mounted in the mounting hole;
one end of the flexible circuit board penetrates through the soft sleeve to be connected with the sensor, and the other end of the flexible circuit board is connected with the acquisition processing module.
3. The blood oxygen monitoring ear muff of claim 1, wherein the acquisition processing module comprises: a processor circuit board and a flexible antenna;
the processor circuit board is arranged on the inner wall of the ear cover, is connected with the photoelectric probe and is connected with an earmuff connector arranged on the ear cover through a cable;
the flexible antenna is arranged on the inner wall of the ear shield through single-sided back glue and is connected with the processor circuit board through a cable.
4. The blood oxygen monitoring ear cup of claim 3, wherein the flexible circuit board of the photoelectric probe is removably connected to the processor circuit board.
5. The blood oxygen monitoring ear muff of claim 4, wherein the processor circuit board is provided with a drawer type connector;
and a drawer type plug-in unit matched with the drawer type connecting piece is arranged at one end of the flexible circuit board connected with the processor circuit board.
6. The blood oxygen monitoring ear cup of claim 1, wherein said blood oxygen monitoring ear cup further comprises: the indicating lamp is connected with the acquisition processing module;
the indicator light is used for transmitting an optical signal to the outside of the earmuff body.
7. The blood oxygen monitoring ear cup of claim 6, wherein the indicator light is disposed within the ear cap;
a light guide hole is formed in the ear cover wall;
the light signal sent by the indicator light is transmitted to the outside of the ear muff main body through the light guide hole.
8. The blood oxygen monitoring earmuff of claim 7, wherein the blood oxygen monitoring earmuff further comprises a light guide and a limiting groove;
the limiting groove is arranged on the inner wall of the ear cover and is positioned below the indicator light;
the light guide piece is installed in the limiting groove in a matched mode and used for conducting light of the indicating lamp, a protruding portion is arranged on the light guide piece and installed in the light guide hole in a matched mode, and a notch is further formed in the light guide piece and used for containing the indicating lamp.
9. The blood oxygen monitoring earmuff of claim 2, wherein the inner wall of the earmuff is further provided with a fixing block and a connecting piece matched with the fixing block;
one end of the flexible circuit board, which is connected with the acquisition processing module, is provided with at least one fixing hole, and the connecting piece penetrates through the fixing hole to fix the flexible circuit board on the fixing block.
10. Blood oxygen monitoring system comprising a blood oxygen monitoring ear cup according to any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023084469.8U CN215305900U (en) | 2020-12-18 | 2020-12-18 | Blood oxygen monitoring earmuff and system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023084469.8U CN215305900U (en) | 2020-12-18 | 2020-12-18 | Blood oxygen monitoring earmuff and system |
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| CN215305900U true CN215305900U (en) | 2021-12-28 |
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| CN202023084469.8U Active CN215305900U (en) | 2020-12-18 | 2020-12-18 | Blood oxygen monitoring earmuff and system |
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