A sleep breath monitor

Abstract

This invention provides a sleep apnea monitor, including an airflow monitoring unit and a support member. The support member includes a first support part, a base, and a second support part connected sequentially along a first direction. The first support part includes two clamping arms spaced apart in a second direction, which is perpendicular to the first direction. The second support part is telescopic in the first direction. The clamping arms and the second support part are equipped with airflow monitoring units. In application, each clamping arm extends at least partially into one of the patient's nostrils to clamp the nasal septum and fix the sleep apnea monitor. Simultaneously, the airflow monitoring units on the clamping arms enter the nostrils to accurately monitor the patient's nasal breathing. By telescopically extending the second support part in the first direction, the airflow monitoring units on the second support part are adjusted to be positioned precisely at the patient's mouth to accurately monitor the patient's mouth breathing, thereby simultaneously ensuring the accuracy of both nasal and mouth breathing monitoring.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to a sleep breathing monitor. Background Technology

[0002] Sleep apnea monitors are used to monitor the breathing patterns of patients with snoring, obtaining information about their mouth and nose breathing so that doctors can assess their health status. However, current sleep apnea monitors struggle to simultaneously and accurately measure both mouth and nose breathing data, leading to inaccurate assessments by doctors. Utility Model Content

[0003] The purpose of this invention is to provide a sleep apnea monitor that accurately measures a patient's mouth and nose breathing to help doctors accurately assess the patient's health status.

[0004] To achieve the above objectives, this utility model provides a sleep apnea monitoring device, comprising: an airflow monitoring unit and a support component; wherein:

[0005] The support member includes a first support portion, a base portion, and a second support portion connected sequentially along a first direction; the first support portion includes two clamping arms, which are spaced apart in a second direction, which is perpendicular to the first direction; the second support portion is configured to extend and retract in the first direction; and each clamping arm and the second support portion are respectively provided with an airflow monitoring portion.

[0006] Optionally, the second support includes a first arm and a second arm, the first arm being fixedly connected to the base, the second arm being movably connected to the first arm, and the second arm being able to move relative to the first arm along the first direction, so that the second support can extend and retract in the first direction.

[0007] Optionally, the support further includes a positioning structure, which includes a first sub-positioning structure and a plurality of second sub-positioning structures; the first sub-positioning structure is disposed on one of the first arm and the second arm; the second sub-positioning structure is disposed on the other of the first arm and the second arm, and the plurality of second sub-positioning structures are spaced apart along the first direction;

[0008] The second support is configured to prevent the second arm from moving relative to the first arm in the first direction under preset conditions when the first sub-positioning structure engages with either of the second sub-positioning structures; the second support is further configured to allow the second arm to move relative to the first arm in the first direction when the first sub-positioning structure disengages from the second sub-positioning structure.

[0009] Optionally, one of the first arm and the second arm is provided with a receiving groove extending along the first direction, and the other arm is at least partially inserted into the receiving groove;

[0010] One of the first sub-positioning structure and the second sub-positioning structure is disposed on the wall of the receiving groove.

[0011] Optionally, the second sub-positioning structure includes a recess, and the first sub-positioning structure includes a protrusion, the protrusion being configured to be elastic, and the surface of the protrusion being part of a sphere or an ellipsoid.

[0012] When the first sub-positioning structure disengages from the second sub-positioning structure, the protrusion deviates from all the recesses and is compressed to store elastic potential energy; when the protrusion releases at least part of the elastic potential energy and is located in one of the recesses, the first sub-positioning structure engages with the second sub-positioning structure.

[0013] Optionally, the positioning structure further includes a plurality of guide grooves, the plurality of guide grooves being arranged along the first direction and each guide groove extending along the first direction, the depth of the guide groove being less than the depth of the recess;

[0014] Two adjacent recesses are connected by one of the guide grooves;

[0015] When the first sub-positioning structure is disengaged from the second sub-positioning structure, the protrusion is located within the guide groove.

[0016] Optionally, it further includes a power module and a second transmission section; the power module is disposed on the base; one end of the second transmission section is connected to the power module, and the other end passes through the interior of the second support section and is connected to the airflow monitoring section on the second support section; the second transmission section is at least partially configured as a curved section, and the curved section is configured to be elastic.

[0017] Optionally, the airflow monitoring unit includes a thermal mass flow sensor.

[0018] Optionally, the second support is configured to be resilient to allow the second support to bend; and / or,

[0019] The clamping arm is configured to be resilient to allow the clamping arm to bend; and / or,

[0020] Each of the clamping arms also has a contact protrusion formed on its surface facing the other clamping arm, and the contact protrusion is located at the end of the clamping arm away from the base.

[0021] Optionally, it further includes a sound monitoring unit disposed on the support member; and / or,

[0022] It also includes a body position monitoring unit, which is disposed on the support member.

[0023] Compared with the prior art, the sleep apnea monitoring device of this invention has the following advantages:

[0024] The aforementioned sleep apnea monitor includes an airflow monitoring unit and a support member. The support member includes a first support portion, a base, and a second support portion connected sequentially along a first direction. The first support portion includes two clamping arms, which are spaced apart in a second direction perpendicular to the first direction. The second support portion is configured to extend and retract in the first direction. Each clamping arm and the second support portion are provided with the airflow monitoring unit. In application, each clamping arm is used to at least partially extend into one of the patient's nostrils, thereby using the two clamping arms to clamp the nasal septum to fix the sleep apnea monitor. Simultaneously, the airflow monitoring unit located on the clamping arm enters the nostril to accurately monitor the patient's nasal breathing. By extending and retracting the second support portion in the first direction, the airflow monitoring unit located on the second support portion is adjusted to be positioned precisely at the patient's mouth to accurately monitor the patient's mouth breathing. This simultaneously ensures the accuracy of both nasal and mouth breathing monitoring, allowing doctors to accurately assess the patient's health status based on the monitoring data. Attached Figure Description

[0025] The accompanying drawings are provided to better understand this utility model and do not constitute an undue limitation thereof. Wherein:

[0026] Figure 1 This is a schematic diagram of the structure of a sleep apnea monitoring device according to an embodiment of the present invention;

[0027] Figure 2 This is a schematic diagram illustrating an application scenario of the sleep apnea monitor provided by this utility model according to one embodiment;

[0028] Figure 3 This is a partial structural schematic diagram of a sleep breathing monitor provided according to an embodiment of the present invention;

[0029] Figure 4 This is a partial structural schematic diagram of a sleep breathing monitor provided according to an embodiment of the present invention;

[0030] Figure 5 yes Figure 4 Enlarged diagram of point A in the diagram;

[0031] Figure 6 yes Figure 4Enlarged diagram of point B in the diagram;

[0032] Figure 7 This is a schematic diagram of the connection framework of the various functional modules of the sleep breathing monitor provided by this utility model according to an embodiment.

[0033] [The annotations in the attached figures are explained below]:

[0034] 10-Sleep breathing monitor, 100-Support component, 110-First support part, 111-Clamping arm, 120-Base, 130-Second support part, 131-First arm, 132-Second arm, 140-Positioning structure, 141-First sub-positioning structure, 142-Second sub-positioning structure, 143-Guide groove, 210-First airflow monitoring part, 220-Second airflow monitoring part, 300-Power module, 400-First transmission part, 410-Second bending section, 500-Second transmission part, 510-First bending section, 600-Sound monitoring part, 700-Position monitoring part, 800-Processing unit, 810-Signal processing module, 820-Analog-to-digital conversion module, 900-Communication unit. Detailed Implementation

[0035] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of this utility model. Therefore, the drawings only show components related to this utility model and are not drawn according to the actual number, shape, and size of the components in implementation. In actual implementation, the type, quantity, and proportion of each component can be arbitrarily changed, and the component layout may also be more complex.

[0036] Furthermore, while each embodiment described below possesses one or more technical features, this does not imply that users of this utility model must simultaneously implement all technical features in any embodiment, or can only separately implement some or all technical features in different embodiments. In other words, provided it is feasible, those skilled in the art can selectively implement some or all technical features in any embodiment, or selectively implement a combination of some or all technical features in multiple embodiments, based on the disclosure of this utility model and depending on design specifications or implementation requirements, thereby increasing the flexibility in implementing this utility model.

[0037] As used herein, the singular forms “a,” “an,” and “the” include plural objects, and the plural form “a plurality” includes two or more objects, unless otherwise expressly indicated. As used herein, the term “or” is generally used to include the meaning of “and / or,” unless otherwise expressly indicated, and the terms “install,” “connect,” and “link” should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection. Connections can be mechanical or electrical. Connections can be direct or indirect through an intermediate medium, and can represent internal communication between two elements or an interaction between two elements. Relational terms such as “first,” “second,” etc., are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations, nor do they indicate relative importance or implicitly specify the number of indicated technical features. Those skilled in the art will understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0038] The purpose of this invention is to provide a sleep apnea monitor that can accurately monitor the mouth and nose breathing of patients during sleep, thereby improving the accuracy of doctors' health assessments based on the patients' mouth and nose breathing.

[0039] To make the objectives, advantages, and features of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to conveniently and clearly illustrate the objectives of the embodiments of this utility model. The same or similar reference numerals in the drawings represent the same or similar parts.

[0040] Figure 1 This is a schematic diagram of the structure of a sleep apnea monitor 10 provided in some embodiments of this utility model. For example... Figure 1 As shown, the sleep apnea monitor 10 includes an airflow monitoring unit and a support member 100. The support member 100 includes a first support portion 110, a base 120, and a second support portion 130 connected sequentially along a first direction. The first support portion 110 includes two clamping arms 111, which are spaced apart in a second direction perpendicular to the first direction. Figure 1The first direction is indicated by a double-headed arrow X, and the second direction by a double-headed arrow Y. The second support portion 130 is configured to extend and retract in the first direction. Each of the clamping arms 111 and the second support portion 130 is provided with an airflow monitoring unit. For ease of description, the airflow monitoring unit provided on the clamping arm 111 is referred to herein as the first airflow monitoring unit 210, and the airflow monitoring unit provided on the second support portion 130 is referred to herein as the second airflow monitoring unit 220.

[0041] Figure 2 A schematic diagram illustrating an application scenario of the sleep apnea monitor 10 is shown. For example... Figure 2 As shown, in application, the first direction is the direction of the mouth and nose arrangement, and each of the clamping arms 111 extends into one of the patient's nostrils, with the two clamping arms 111 cooperating to clamp the nasal septum, thus fixing the sleep apnea monitor 10 to the patient's body and allowing the first airflow monitoring unit 210 to extend into the nostril for accurate monitoring of the patient's nasal breathing; by extending and retracting the second support unit 130 in the first direction, the position of the second airflow monitoring unit 220 is adjusted so that the second airflow monitoring unit 220 is positioned precisely at the mouth, allowing for accurate monitoring of the patient's mouth breathing. In other words, the sleep apnea monitor 10 provided by this embodiment can accurately monitor both the patient's mouth and nasal breathing simultaneously, thus improving the accuracy of the assessment when doctors evaluate the patient's health based on the patient's mouth and nasal breathing data. It is understood that doctors can also combine data monitored by other monitoring devices such as pulse oximeters when assessing the patient's health.

[0042] Optionally, continue to refer to Figure 1 and combined Figure 3 The second support portion 130 includes a first arm 131 and a second arm 132. The first arm 131 is fixedly connected to the base 120, and the second arm 132 is movably connected to the first arm 131, so that the second arm 132 can move relative to the first arm 131 in the first direction, thereby achieving the effect of the second support portion 130 extending and retracting in the first direction.

[0043] Optionally, such as Figure 3As shown, one of the first arm 131 and the second arm 132 is provided with a receiving groove (not labeled in the figure), and the other arm at least partially passes through the receiving groove. The receiving groove extends along the first direction, thereby allowing the second arm 132 to move relative to the first arm 131 along the receiving groove. In a specific example, the second arm 132 is provided with the receiving groove, and the first arm 131 at least partially passes through the receiving groove, or rather, the second arm 132 is fitted onto a portion of the outer surface of the first arm 131 through the receiving groove.

[0044] Preferably, such as Figure 3 As shown, the support member 100 further includes a positioning structure 140, which includes a first sub-positioning structure 141 and a plurality of second sub-positioning structures 142. The first sub-positioning structure 141 is disposed on one of the first arm 131 and the second arm 132, and the second sub-positioning structures 142 are disposed on the other of the first arm 131 and the second arm 132, and the plurality of second sub-positioning structures 142 are spaced apart along the first direction. When the first sub-positioning structure 141 cooperates with any of the second sub-positioning structures 142, the positioning structure 140 prevents the second arm 132 from moving relative to the first arm 131 along the first direction under preset conditions, thereby preventing the second support portion 130 from extending or retracting along the first direction; when the first sub-positioning structure 141 does not cooperate with any of the second sub-positioning structures 142, the second arm 132 is allowed to move relative to the first arm 131 along the first direction, thereby allowing the second support portion 130 to extend or retract. Thus, when the second airflow monitoring unit 220 is located at the patient's mouth, the second support unit 130 can be prevented from extending or retracting under the preset conditions by cooperating the first sub-positioning structure 141 with a suitable second sub-positioning structure 142, thereby positioning the second airflow monitoring unit 220 and keeping it at the patient's mouth for continuous and stable monitoring of the patient's mouth breathing.

[0045] Optionally, one of the first sub-positioning structure 141 and the second sub-positioning structure 142 is disposed on the wall of the receiving groove. For ease of description, the following description takes the first sub-positioning structure 141 disposed on the wall of the receiving groove as an example. However, those skilled in the art can modify the following description to adapt to the case where the second sub-positioning structure 142 is disposed on the wall of the receiving groove.

[0046] Optionally, the first sub-positioning mechanism 141 includes a protrusion configured to be elastic, and preferably the surface of the protrusion is part of a sphere or ellipsoid. The second sub-positioning structure 142 is a recess; it is readily understood that if the receiving groove is provided on the second arm 132, then the second sub-positioning structure 142 is a recess provided on the surface of the first arm 131 (e.g., Figure 3 As shown), conversely, if the receiving groove is provided on the first arm, then the second sub-positioning structure is a recess provided on the surface of the second arm (not shown in the figure).

[0047] The disengagement of the first sub-positioning structure 141 and the second sub-positioning structure 142 means that the protrusion is deviated from all the recesses, at which point the protrusion is compressed and stores elastic potential energy; the engagement of the first sub-positioning structure 141 and the second sub-positioning structure 142 means that the protrusion releases at least part of the elastic potential energy and is located in a recess.

[0048] It is easy to understand that if the protrusion is deviated from all the recesses, when the operator applies a force to the second arm 132 along the first direction and greater than a first preset value, the second arm 132 can be moved relative to the first arm 131 along the first direction. If the protrusion is located within any of the recesses, when the operator applies a force to the second arm 132 along the first direction and greater than a second preset value, the second arm 132 can be moved relative to the first arm 131 along the first direction. However, when the operator applies a force to the second arm 132 along the first direction but less than the second preset value, the second arm 132 cannot be moved relative to the first arm 131 along the first direction. The second preset value is greater than the first preset value. In other words, the aforementioned preset condition refers to the force on the second arm 132 along the first direction being less than the second preset value.

[0049] Preferably, the positioning structure 140 further includes a plurality of guide grooves 143 located on the component containing the second sub-positioning structure 142. The plurality of guide grooves 143 are arranged at intervals along the first direction, and each guide groove 143 extends along the first direction. Any two adjacent recesses are connected by a guide groove 143, and the depth of the recess is greater than the depth of the guide groove 143. When the first sub-positioning structure 141 and the second sub-positioning structure 142 are disengaged, the protrusion is located within the guide groove 143. Thus, the guide groove 143 constitutes a guiding structure for the second arm 132 to move relative to the first arm 131 along the first direction, ensuring that the protrusion can move into the recess to achieve the engagement between the first sub-positioning structure 141 and the second sub-positioning structure 142.

[0050] It should be noted that the number of positioning structures 140 is at least one. It should be understood that if there are multiple positioning structures 140, when at least one of the first sub-positioning structures 141 of a positioning structure 140 cooperates with any one of its corresponding second sub-positioning structures 142, it achieves the effect of preventing the second support portion 130 from extending or retracting along the first direction under the preset conditions; while when none of the first sub-positioning structures 141 of any of the positioning structures 140 cooperate with their corresponding second sub-positioning structures 142, the second support portion 130 is allowed to extend or retract along the first direction.

[0051] When there are multiple positioning structures 140, it is preferable that the multiple positioning structures 140 are distributed on opposite sides of the second support portion 130. Furthermore, it is worth noting that when there are multiple positioning structures 140 located on the same side of the second support structure 130, and the first sub-positioning structures 141 of the multiple positioning structures 140 are arranged at intervals along the first direction, different positioning structures 140 on the same side can share at least a portion of the second sub-positioning structure 142.

[0052] Preferably, the second support portion 130 is made of an elastic material, so that the second support portion 130 is elastic and can be bent under the action of external force. This facilitates bringing the second airflow monitoring portion 220 closer to the patient's mouth. Optional elastic materials include, for example, shape memory alloys, to ensure the morphological stability of the second support portion 130 and prevent deformation of the second support portion 130 due to accidental contact or other undesirable actions, which could cause the second airflow monitoring portion 220 to deviate from the patient's mouth.

[0053] refer to Figure 4The sleep apnea monitor 10 further includes a power module 300, a first transmission unit 400, and a second transmission unit 500. The power module 300 is disposed at the base 110. There are two first transmission units 400. One end of each first transmission unit 400 is directly or indirectly electrically connected to the power module 300, and the other end passes through the interior of one of the clamping arms 111 and is electrically connected to the first airflow monitoring unit 210 on the corresponding clamping arm 111, so as to transmit the electrical energy provided by the power module 300 to the first airflow monitoring unit 210, enabling the first airflow monitoring unit 210 to function normally. One end of the second transmission unit 500 is directly or indirectly electrically connected to the power module 300, and the other end passes through the interior of the second support portion 130 and is electrically connected to the second airflow monitoring unit 220 disposed on the second support portion 130, so as to transmit the electrical energy provided by the power module 300 to the second airflow monitoring unit 220, so as to enable the second airflow monitoring unit 220 to function normally.

[0054] Preferably, such as Figure 5 As shown, the second transmission section 500 is at least partially configured as a curved section, referred to as the first curved section 510, and the first curved section 510 is made of an elastic material. Thus, the first curved section 510 can deform synchronously with the extension, contraction, and bending of the second support section 130 to adapt to the length and shape of the second support section 130, preventing the second transmission section 500 from breaking due to the extension, contraction, and bending of the second support section 130.

[0055] Preferably, each of the clamping arms 111 has a contact protrusion 112 formed on its surface facing the other clamping arm 111, and the contact protrusion 112 is preferably located at the end of the clamping arm 111 away from the base 110. The clamping arm 111 contacts the nasal septum through the contact protrusion 112, which can reduce patient discomfort.

[0056] Preferably, the clamping arms 111 are made of an elastic material, which allows the shape of the clamping arms 111 to be adjusted according to the individual characteristics of the patient, for example, by making the clamping arms 111 appropriately bent, so that the clamping arms 111 can be smoothly inserted into the patient's nostrils and the two clamping arms 111 can stably clamp the nasal septum. Optional elastic materials include, for example, shape memory alloys.

[0057] Accordingly, please refer to Figure 6The first transmission section 400 is also at least partially configured as a curved section, referred to as the second curved section 410, which is made of an elastic material. Thus, the second curved section can bend along with the bending of the clamping arm 111, allowing the first transmission section 400 to adapt to changes in the shape of the clamping arm 111.

[0058] Furthermore, the first airflow monitoring unit 210 is preferably a thermal mass flow sensor. This allows the first airflow monitoring unit 210 to directly acquire the gas flow rate during nasal breathing. Similarly, the second airflow monitoring unit 220 is preferably a thermal mass flow sensor, so that the second airflow monitoring unit 220 can directly acquire the gas flow rate during mouth breathing. That is, the sleep apnea monitor 10 quantitatively monitors both mouth and nasal breathing, resulting in more accurate monitoring results.

[0059] Optionally, please return to the reference. Figure 4 The sleep apnea monitor 10 further includes a sound monitoring unit 600, which is disposed at any suitable location on the support member 100, such as the base 110, and is used to monitor the patient's sound information, such as snoring information, during sleep. The sound monitoring unit 600 may include any suitable sound sensor available in the prior art.

[0060] Optionally, the sleep apnea monitor 10 further includes a position monitoring unit 700, which is disposed at any suitable position on the support member 100, such as the base 110, and is used to monitor the patient's position information. The position monitoring unit 700 can be any suitable position monitoring sensor in the prior art.

[0061] Optionally, the sleep apnea monitor 10 is used in conjunction with an external system. The airflow monitoring unit 200, the sound monitoring unit 600 (if any), and the position monitoring unit 700 (if any) of the sleep apnea monitor 10 are all communicatively connected to the external system, transmitting the monitored information to the external system. This allows the external system to display the information monitored by the airflow monitoring unit 200, the sound monitoring unit 600, and the position monitoring unit 700, enabling doctors to intuitively obtain this information and, at least based on this information, assess the patient's health status.

[0062] Therefore, please refer to the following: Figure 7The sleep apnea monitor further includes a processing unit 800 and a communication unit 900. The processing unit 800 includes a signal processing module 810 and an analog-to-digital conversion module 820. The first airflow monitoring unit 210, the second airflow monitoring unit 220, the sound monitoring unit 600, and the body position monitoring unit 700 can all be connected to the signal processing module 810 via a wired connection. The signal processing module 810 can also be connected to the analog-to-digital conversion module 820 via a wired connection. The analog-to-digital conversion module 820 can be connected to the communication module 900 via a wired connection. The communication module 900 is used to communicate wirelessly with the external system. It should be understood that the signal processing module 810 amplifies and filters the monitoring signals from the first airflow monitoring unit 210, the second airflow monitoring unit 220, the sound monitoring unit 600, and the body position monitoring unit 700; the analog-to-digital conversion module 820 converts the amplified and filtered monitoring signals into digital signals; and the communication module 900 transmits the digital signals to the external system. It is understood that the specific operation of the signal processing module 810, the analog-to-digital conversion module 820, and the communication module 900 is well-known to those skilled in the art and will not be elaborated upon here.

[0063] Furthermore, the signal processing module 810, the analog-to-digital conversion module 820, and the communication module 900 can all be disposed at any suitable location on the support member 100, such as on the base 110. In practice, the power module 300, the first transmission unit 400, the second transmission unit 500, the signal processing module 810, the analog-to-digital conversion module 820, and the communication module 900 are integrated on the same circuit board.

[0064] While the present invention has been disclosed above, it is not limited thereto. Those skilled in the art can make various modifications and variations to the present invention without departing from its spirit and scope. Therefore, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention also intends to include such modifications and variations.

Claims

1. A sleep apnea monitoring device, characterized in that, include: Airflow monitoring unit and supporting components; wherein: The support member includes a first support portion, a base portion, and a second support portion connected sequentially along a first direction; the first support portion includes two clamping arms, which are spaced apart in a second direction, and the second direction is perpendicular to the first direction. The second support is configured to extend and retract in the first direction; each of the clamping arms and the second support are respectively provided with the airflow monitoring unit.

2. The sleep apnea monitoring device according to claim 1, characterized in that, The second support includes a first arm and a second arm. The first arm is fixedly connected to the base, and the second arm is movably connected to the first arm. The second arm is movable relative to the first arm along the first direction, so that the second support can extend and retract in the first direction.

3. The sleep apnea monitoring device according to claim 2, characterized in that, The support further includes a positioning structure, which includes a first sub-positioning structure and a plurality of second sub-positioning structures; the first sub-positioning structure is disposed on one of the first arm and the second arm; the second sub-positioning structure is disposed on the other of the first arm and the second arm, and the plurality of second sub-positioning structures are spaced apart along the first direction. The second support is configured to prevent the second arm from moving relative to the first arm in the first direction under preset conditions when the first sub-positioning structure engages with either of the second sub-positioning structures; the second support is further configured to allow the second arm to move relative to the first arm in the first direction when the first sub-positioning structure disengages from the second sub-positioning structure.

4. The sleep apnea monitor according to claim 3, characterized in that, One of the first arm and the second arm is provided with a receiving groove extending along the first direction, and the other arm is at least partially inserted into the receiving groove; One of the first sub-positioning structure and the second sub-positioning structure is disposed on the wall of the receiving groove.

5. The sleep apnea monitor according to claim 4, characterized in that, The second sub-positioning structure includes a recess, and the first sub-positioning structure includes a protrusion, the protrusion being configured to be elastic, and the surface of the protrusion being part of a sphere or an ellipsoid. When the first sub-positioning structure disengages from the second sub-positioning structure, the protrusion deviates from all the recesses and is compressed to store elastic potential energy; when the protrusion releases at least part of the elastic potential energy and is located in one of the recesses, the first sub-positioning structure engages with the second sub-positioning structure.

6. The sleep apnea monitoring device according to claim 5, characterized in that, The positioning structure further includes a plurality of guide grooves, which are arranged along the first direction and each guide groove extends along the first direction. The depth of the guide groove is less than the depth of the recess. Two adjacent recesses are connected by one of the guide grooves; When the first sub-positioning structure is disengaged from the second sub-positioning structure, the protrusion is located within the guide groove.

7. The sleep apnea monitoring device according to claim 1, characterized in that, It also includes a power module and a second transmission section; the power module is disposed on the base; one end of the second transmission section is connected to the power module, and the other end passes through the interior of the second support section and is connected to the airflow monitoring section on the second support section; the second transmission section is at least partially configured as a curved section, and the curved section is configured to be elastic.

8. The sleep apnea monitoring device according to claim 1, characterized in that, The airflow monitoring unit includes a thermal mass flow sensor.

9. The sleep apnea monitoring device according to claim 1, characterized in that, The second support portion is configured to be elastic to allow the second support portion to bend; and / or, The clamping arm is configured to be resilient to allow it to bend; And / or, Each of the clamping arms also has a contact protrusion formed on its surface facing the other clamping arm, and the contact protrusion is located at the end of the clamping arm away from the base.

10. The sleep apnea monitoring device according to claim 1, characterized in that, It also includes a sound monitoring unit, which is disposed on the support member; and / or, It also includes a body position monitoring unit, which is disposed on the support member.

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