Ventilation mask and breathing device

Abstract

A ventilation mask and a breathing device, relating to the technical field of ventilation therapy. The ventilation mask comprises a magnetic field identification apparatus. The magnetic field identification apparatus is located on one side of the ventilation mask close to a patient or one side of the ventilation mask away from the patient. The magnetic field identification apparatus is capable of identifying a magnetic field, and thus can be applied to a clinical nuclear magnetic environment. Moreover, the ventilation mask is worn on the face of the patient, so that the ventilation mask and the magnetic field identification apparatus are positioned closer to the patient compared to active therapy devices such as ventilators, enabling a better position for magnetic field identification.

Description

A ventilation mask and breathing device Cross-references

[0001] This application claims priority to Chinese application No. 202411178815.9, filed on August 26, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This manual relates to the field of ventilation therapy technology, and in particular to a ventilation mask and breathing device. Background Technology

[0003] Respiratory devices, including ventilation masks, are required in many areas of the clinical setting, particularly in the treatment of respiratory diseases. Respiratory devices may be used in MRI environments (e.g., magnetic resonance imaging), where the very strong magnetic fields and alternating magnetic fields in the radiofrequency range can potentially affect the respiratory devices or implanted devices in the patient.

[0004] Therefore, there is a need for a ventilation mask and breathing device that can be used in clinical MRI environments and is close to the patient to obtain a better magnetic field identification position for effective magnetic field identification. Summary of the Invention

[0005] The present invention provides a ventilation mask and breathing device for identifying at least one magnetic field.

[0006] According to a first aspect of the present invention, the present invention provides a ventilation mask including a magnetic field identification device located on the side of the ventilation mask closer to the patient or on the side farther away from the patient, wherein the magnetic field identification device is used to identify magnetic fields.

[0007] In one embodiment, the magnetic field identification device includes an identification module configured to detect magnetic field parameters to identify one or more types of magnetic field regions.

[0008] In one embodiment, the magnetic field parameter includes at least one of magnetic flux density or magnetic field strength.

[0009] In one embodiment, the identification module is further configured to identify one or more types of magnetic field regions when the magnetic field parameters meet preset conditions.

[0010] In one embodiment, the magnetic field parameters satisfying preset conditions include magnetic flux density exceeding a density threshold or the average value of magnetic flux density reaching the density threshold.

[0011] In one embodiment, the identification module is further configured to identify one or more types of magnetic field regions based on the magnetic field parameters.

[0012] In one embodiment, the one or more types of magnetic field regions include electrostatic magnetic field regions, sudden magnetic field regions, and occupational exposure magnetic field regions.

[0013] In one embodiment, the identification module is further configured to: identify regions with magnetic flux density greater than or equal to an electrostatic magnetic field threshold as the electrostatic magnetic field region; identify regions with magnetic flux density greater than a sudden magnetic field threshold as the sudden magnetic field region; and identify regions with an average magnetic flux density reaching an occupational exposure threshold as the occupational exposure magnetic field region.

[0014] In one embodiment, the electrostatic magnetic field threshold is 0.5 mT, the sudden magnetic field threshold is 3 mT, and the occupational exposure threshold is 200 mT.

[0015] In one embodiment, the recognition module is further configured to recognize magnetic fields by recognizing sound or light signals on at least three coordinate axes.

[0016] In one embodiment, the identification module is further configured to periodically detect the magnetic field parameters or to detect the magnetic field parameters at non-fixed time intervals.

[0017] In one embodiment, the magnetic field identification module further includes a storage module connected to the identification module, the storage module being configured to record information about the magnetic field region.

[0018] In one embodiment, the magnetic field identification device further includes a prompting module connected to the identification module, the prompting module being configured to issue one or more corresponding prompting signals when the identification module identifies one or more magnetic field regions of the one or more types.

[0019] In one embodiment, the magnetic field identification device further includes an energy module configured to power the magnetic field identification device.

[0020] In one embodiment, the magnetic field recognition device is integrated into the ventilated mask, and when the ventilated mask is worn, the magnetic field recognition device maintains a preset distance from the patient's face.

[0021] In one embodiment, the preset distance is 5cm-10cm.

[0022] In one embodiment, the ventilation mask is a full-face mask, a nasal mask, or an oronasal mask. The ventilation mask includes a pad, a frame, and a headband. The pad is connected to the frame for contact with the patient's face, and the headband is connected to the frame for securing the ventilation mask.

[0023] In one embodiment, the ventilation mask further includes a bend for connecting the air supply device to a chamber in the liner.

[0024] According to a second aspect of the present invention, the present invention provides a breathing device, including the above-described ventilation mask, and further including the air supply device connected to the ventilation mask.

[0025] Compared with the prior art, the advantages of the present invention are that the magnetic field recognition device in the ventilation mask can recognize magnetic fields, thus it can be applied in the clinical MRI environment; and since the ventilation mask is worn on the patient's face, the ventilation mask and magnetic field recognition device are closer to the patient than active treatment devices such as ventilators, thus achieving a better magnetic field recognition position. Attached Figure Description

[0026] This specification will be further described by way of exemplary embodiments, which will be described in detail with reference to the accompanying drawings. These embodiments are not limiting; in these embodiments, the same reference numerals denote the same structures, wherein:

[0027] Figure 1 is a three-dimensional structural schematic diagram of a ventilation mask according to some embodiments of this specification;

[0028] Figure 2 is a structural block diagram of a magnetic field identification device according to some embodiments of this specification;

[0029] In the attached drawings, the reference numerals are as follows: 100, ventilation mask; 200, magnetic field identification device; 1, padding; 2, frame; 3, headband; 4, bend; 201, energy module; 202, identification module; 203, storage module; 204, prompting module. Detailed Implementation

[0030] The accompanying drawings used in the description of the embodiments will be briefly introduced below. The drawings do not represent all embodiments.

[0031] The terms “system,” “device,” “unit,” and / or “module” as used herein are one method of distinguishing different components, elements, parts, sections, or assemblies at different levels. However, if other terms can achieve the same purpose, they may be replaced by other expressions.

[0032] Unless the context clearly indicates an exception, words such as "a," "an," "a kind," and / or "the" do not specifically refer to the singular and may also include the plural. Generally speaking, the terms "comprising" and "including" only indicate the inclusion of explicitly identified steps and elements, which do not constitute an exclusive list, and the method or apparatus may also include other steps or elements.

[0033] The invention will now be further described with reference to the accompanying drawings.

[0034] Figure 1 is a three-dimensional structural schematic diagram of a ventilation mask according to some embodiments of this specification. Figure 2 is a structural block diagram of a magnetic field identification device according to some embodiments of this specification. As shown in Figures 1 and 2, the present invention provides a ventilation mask 100, and more specifically, a ventilation mask 100 capable of identifying magnetic fields, wherein a magnetic field identification device 200 is provided in the ventilation mask 100. As shown in Figure 1, the magnetic field identification device 200 is located on the side of the ventilation mask 100 closer to the patient or on the side farther from the patient, wherein the magnetic field identification device 200 is used to identify magnetic fields, thereby enabling its application in clinical MRI environments.

[0035] Since the ventilation mask 100 is worn on the patient's face, the ventilation mask 100 and the magnetic field recognition device 200 are closer to the patient than active therapeutic devices such as ventilators. Therefore, integrating the magnetic field recognition device 200 into the ventilation mask 100 can achieve a better magnetic field recognition position. Furthermore, the ventilation mask 100 is much smaller in size than active therapeutic devices such as ventilators, so its own magnetic field is smaller. Under the same magnetic field recognition function, integrating the magnetic field recognition device 200 into the ventilation mask 100 has less impact on the entire therapeutic device.

[0036] As shown in Figure 2, the magnetic field identification device 200 includes an energy module 201, an identification module 202, a storage module 203, and a prompting module 204. The energy module 201 is electrically connected to the identification module 202, the storage module 203, and the prompting module 204, respectively, and is used to supply power to these modules. The identification module 202 is configured to detect magnetic field parameters to identify one or more types of magnetic field regions. The identification module 202 is communicatively connected to the storage module 203 and the prompting module 204, respectively. The storage module 203 can store data in response to the identification by the identification module 202, and the prompting module 204 can issue a prompt signal in response to the identification by the identification module 202.

[0037] Some embodiments of this specification provide patients with the closest magnetic field exposure monitoring point by integrating a magnetic field identification device into the ventilated mask, enabling the earliest identification and warning of nearby strong magnetic field threats.

[0038] The energy module 201 is configured to power the magnetic field recognition device. For example, the energy module can be a solar energy module or a battery (such as a button cell battery). Specifically, when the magnetic field recognition device 200 is located on the side of the ventilation mask 100 furthest from the patient (i.e., on the outer side of the ventilation mask), the energy module 201 can be a solar energy module to power other modules using solar and light energy. When the magnetic field recognition device 200 is located on the side of the ventilation mask 100 closest to the patient (i.e., on the inner side of the ventilation mask), the energy module 201 can be a button cell battery.

[0039] In some embodiments of this specification, the energy module ensures the independence and continuous operation of the magnetic field identification device, making it independent of the power supply of the mask body or external devices.

[0040] The identification module 202 refers to a module with magnetic field identification function. For example, the identification module may include one or more sensors. The sensors may be one or more of the following: magnetometer, magnetic field sensor, Hall sensor, Tesla sensor, Gaussian sensor, reed switch sensor, and measuring coil.

[0041] In some embodiments, the identification module 202 can be configured to identify magnetic fields by recognizing sound or light signals on at least three coordinate axes. The three coordinate axes can be, for example, the X-axis, Y-axis, and Z-axis in a Cartesian coordinate system. The identification module 202 has a acquisition head, which can be located on the outer surface of the ventilation mask 100 to facilitate the identification of sound or light signals in the environment.

[0042] In some embodiments, the identification module 202 may be configured to detect magnetic field parameters to identify one or more types of magnetic field regions.

[0043] Magnetic field parameters are physical parameters used to characterize the properties of a magnetic field. In some embodiments, magnetic field parameters may include at least one of magnetic flux density or magnetic field strength.

[0044] Magnetic field parameters may also include one or more of the following: magnetic field direction, magnetic field gradient, and magnetic field rate of change; there are no restrictions on this.

[0045] In some embodiments, magnetic field parameters can be directly monitored and obtained by various sensors included in the identification module, or they can be derived from a pre-stored calculation model within the identification module. For example, the magnetic field parameters can be calculated based on the known characteristics (current magnitude, number of coil turns, geometry, distance, etc.) of the field source (such as an MRI device) using electromagnetic field theories such as Maxwell's equations.

[0046] In some embodiments of this specification, the type of magnetic field region is identified by detecting magnetic field parameters, providing a technical basis for achieving accurate and quantitative magnetic field risk assessment.

[0047] In some embodiments, the identification module 202 may be further configured to identify one or more types of magnetic field regions when the magnetic field parameters meet preset conditions.

[0048] The preset conditions are logical judgment criteria pre-stored in the recognition module. When the magnetic field parameters meet the preset conditions, the magnetic field region type recognition event is triggered.

[0049] The preset conditions can be manually preset. In some embodiments, the magnetic field parameters meeting the preset conditions include the magnetic flux density exceeding a density threshold or the average magnetic flux density reaching a density threshold. The density threshold is a safe value for magnetic flux density set in the identification module 202. If the magnetic flux density detected by the identification module 202 reaches or exceeds the density threshold, it indicates that the patient wearing the ventilation mask 100 is in an unsafe environment. Furthermore, when the identification module 202 detects that the magnetic flux density on one of the coordinate axes reaches or exceeds the density threshold, it can be considered that the patient wearing the ventilation mask 100 is in an unsafe environment.

[0050] In some embodiments, the magnetic field parameters meeting the preset conditions can be a single magnetic field parameter meeting a single condition, or multiple magnetic field parameters meeting a composite condition. For example, the magnetic field parameters meeting the preset conditions can be a magnetic field strength exceeding an intensity threshold and a magnetic field gradient exceeding a gradient threshold. The intensity threshold and gradient threshold are preset safe values ​​for the magnetic field strength and magnetic field gradient in the identification device 202, respectively.

[0051] In some embodiments of this specification, a judgment logic based on preset conditions is introduced, making the magnetic field region identification process more intelligent and reliable, and reducing the possibility of false alarms.

[0052] In some embodiments, the identification module 202 may be further configured to identify one or more types of magnetic field regions based on magnetic field parameters.

[0053] In some embodiments, one or more types of magnetic field regions may include electrostatic magnetic field regions, sudden magnetic field regions, occupational exposure magnetic field regions, etc.

[0054] An electrostatic magnetic field region refers to a region where the magnetic field changes little or remains constant over time. For example, a region where the rate of change of the magnetic field parameters over time is less than a first preset rate of change threshold. This first preset rate of change threshold can be manually preset to a small value close to 0.

[0055] A sudden magnetic field region refers to a region where the magnetic field changes abruptly. For example, it is a region where the peak magnetic flux density exceeds a first preset density threshold, and the duration of this peak is shorter than a first preset time threshold. The first preset density threshold can be artificially preset (e.g., 3 mT) to characterize the high intensity of the magnetic field. The first preset time threshold can be artificially preset to an extremely short time (e.g., 100 ms) to characterize the transient nature of the magnetic field.

[0056] Occupational exposure magnetic field areas refer to magnetic field areas where there is an occupational exposure risk. For example, areas where the time-weighted average magnetic field strength exceeds a first preset intensity threshold. The statistical period for the time-weighted average and the first preset intensity threshold are manually preset, for example, 8 hours and 200 mT.

[0057] Magnetic field regions can be classified according to the potential impact of the magnetic field on human health or equipment safety. The electrostatic magnetic field region, sudden magnetic field region, and occupational exposure magnetic field region mentioned above are some common classification methods, but this specification is not limited to these. For example, magnetic field regions can also include interference-sensitive equipment regions (regions where the magnetic field interferes with the operation of specific medical devices, such as pacemakers, nerve stimulators, etc.).

[0058] In some embodiments, the identification module 202 may identify one or more types of magnetic field regions based on one or more of the magnetic field parameters.

[0059] For example, the identification module 202 can identify areas with magnetic flux density greater than or equal to the electrostatic magnetic field threshold as electrostatic magnetic field regions. The electrostatic magnetic field threshold is 0.5 mT. That is, when the magnetic flux density in the environment is greater than or equal to 0.5 mT, the identification module 202 can identify that environmental area as an electrostatic magnetic field region. The identification module 202 can also identify areas with magnetic flux density greater than the sudden magnetic field threshold as sudden magnetic field regions. The sudden magnetic field threshold is 3 mT. That is, when the sudden magnetic flux density in the environment at a certain moment is greater than or equal to 3 mT, the identification module 202 can identify that environmental area as a sudden magnetic field region. The identification module 202 can also identify areas where the average magnetic flux density reaches the occupational exposure threshold as occupational exposure magnetic field regions. The occupational exposure threshold is 200 mT. That is, when the average magnetic flux density in the environment over a certain period (e.g., 8h, 10h, 12h) is 200 mT, the identification module 202 can identify that environmental area as an occupational exposure magnetic field region. Among them, the electrostatic magnetic field threshold, the sudden magnetic field threshold, and the occupational exposure threshold can be preset manually according to different clinical application scenarios or different patient groups, for example, 0.5mT, 3mT, and 200mT respectively.

[0060] For example, when the identification module 202 detects that the magnetic field strength in the environment is continuously greater than or equal to the first intensity threshold (e.g., 0.5 A / m) for a preset duration (e.g., 2 s), the area is identified as an electrostatic magnetic field area; when the identification module 202 detects that the instantaneous value of the magnetic field strength in the environment exceeds the second intensity threshold (e.g., 2.4 A / m), and the total duration of exceeding the second intensity threshold is less than the first preset time threshold (e.g., 100 ms), the area is identified as a sudden magnetic field area; the identification module 202 continuously monitors the magnetic field strength and calculates its average value over a certain period of time (e.g., 8 hours). When this average value reaches or exceeds the third intensity threshold (e.g., 160 kA / m), the area is identified as an occupational exposure magnetic field area.

[0061] In some embodiments of this specification, by classifying magnetic field regions into types (static, sudden, occupational exposure), it is possible to distinguish magnetic field risks with different characteristics and provide users with more targeted risk information.

[0062] In some embodiments, the identification module may be further configured to periodically detect magnetic field parameters or to detect magnetic field parameters at non-fixed time intervals. In some embodiments, the identification module is further configured to periodically detect magnetic field parameters according to an identification frequency.

[0063] Preferably, the identification module 202 can periodically detect the magnetic flux density according to the identification frequency during identification. The identification frequency refers to the sampling rate of the magnetic field parameters. For example, 0.1Hz-1Hz corresponds to a period of 1s-10s for periodically detecting the magnetic field parameters according to the identification frequency. The higher the identification frequency, the more stringent the performance requirements for each module of the magnetic field identification device 200.

[0064] Alternatively, the identification module 202 can also detect magnetic flux density intermittently at non-fixed time intervals.

[0065] In some embodiments, the method by which the identification module detects magnetic field parameters can be configured based on different scenario requirements (such as power consumption requirements, detection accuracy requirements, etc.). For example, a non-fixed time interval method can save energy and is suitable for battery-powered scenarios; a periodic detection method can ensure no detection is missed and is suitable for high-risk environments.

[0066] Some embodiments in this specification provide continuous (periodic) or intermittent (at non-fixed time intervals) detection methods, balancing real-time monitoring with device power consumption, and adapting to the needs of different application scenarios.

[0067] In some embodiments, the magnetic field identification device 200 further includes a storage module 203, which is connected to the identification module 202 and is configured to record information about the magnetic field region.

[0068] For example, when the identification module 202 identifies an electrostatic magnetic field region, a sudden magnetic field region, and an occupational exposure magnetic field region, the storage module 203 can record one or more of these regions. The storage device 20 may include at least one hard disk drive and / or at least one memory card and / or similar storage media.

[0069] In some embodiments of this specification, magnetic field area information is recorded through a storage module, providing data support for subsequent issues such as exposure dose analysis, accident tracing, and occupational health management.

[0070] In some embodiments, the magnetic field identification device 200 further includes a prompting module 204, which is connected to the identification module 202. The prompting module 204 is configured to issue one or more corresponding prompting signals when the identification module 202 identifies one or more types of magnetic field regions.

[0071] The prompting signals include, but are not limited to, one or more of the following: sound signals, light signals, vibration signals, thermal signals, and tingling signals.

[0072] The alert module 204 refers to a module with an alert function. For example, the alert module 204 may include a sound signal generator for emitting sound signals. The sound signal may be in the form of tone, tone sequence, alarm, voice output, etc. To generate the sound signal, the alert module 204 may also include at least one speaker. The speaker can emit a warning tone to provide an alert.

[0073] For example, the alert module 204 may also include an illumination device (e.g., an LED light) for emitting light signals, which can emit light of different colors and / or intensities. The light signal 33 can be implemented, for example, by emitting light signals through at least one LED light. For example, the LED light can flash, illuminate continuously, or change color to provide an alert.

[0074] The prompt module 204 can be connected to a control switch, allowing users to manually operate the control switch to turn off various signals such as sound signals, light signals, vibration signals, heat signals, and tingling signals.

[0075] The type of alert signal can vary depending on the location of the magnetic field recognition device 200 on the ventilation mask 100. For example, the alert module 204 is configured to emit one or more of the following signals in response to the recognition module 202 recognizing one or more of an electrostatic magnetic field area, a sudden magnetic field area, and an average magnetic field area of ​​occupational exposure: an audible signal, an optical signal, a vibration signal, a thermal signal, and a stinging signal. Specifically, when the magnetic field recognition device 200 is located on the side of the ventilation mask 100 furthest from the patient, i.e., on the outer side of the ventilation mask, the alert module 204 can emit an audible signal and / or an optical signal for warning; when the magnetic field recognition device 200 is located on the side of the ventilation mask 100 closest to the patient, i.e., on the inner side of the ventilation mask, the alert module 204 can emit one or more of the following signals in addition to an audible signal and / or an optical signal: a vibration signal, a thermal signal, and a stinging signal. These vibration, thermal, and stinging signals can all act on the face of the patient wearing the ventilation mask 100, thereby serving as a warning.

[0076] Different types of magnetic field areas correspond to different warning signals to differentiate between them. For example, when the recognition module detects an electrostatic magnetic field area, the warning module may emit a slowly flashing yellow light and / or an intermittent buzzer; when the recognition module detects a sudden magnetic field area, the warning module may emit a rapidly flashing red light and / or a rapid alarm sound; when the recognition module detects an occupational exposure magnetic field area, the warning module may emit continuous vibration and a constantly lit blue light, etc. The correspondence between magnetic field area types and warning signals can be preset manually and input into the warning module.

[0077] When the prompt module 204 issues the above signal, it indicates that the magnetic field parameters in the environment have met the preset conditions (such as the magnetic flux density has exceeded the density threshold set in the identification module 202), meaning that the patient wearing the ventilation mask 100 is in a certain unsafe environment.

[0078] In this embodiment of the specification, the prompting module issues a prompting signal corresponding to the type of magnetic field region, which can effectively and promptly remind users to avoid different levels of magnetic field hazards.

[0079] In some embodiments, the magnetic field recognition device 200 is integrated into the ventilation mask 100, and when the ventilation mask 100 is worn, the magnetic field recognition device 200 maintains a preset distance from the patient's face.

[0080] The identification module 202 can identify a magnetic field area with a diameter of 2 inches (50 mm). Since the patient wearing the ventilation mask 100 is considered the center, the magnetic object needs to be at least 1 inch (50 mm) away from the patient to avoid the local magnetic field from having any possible impact on the patient.

[0081] The magnetic field identification device 200 can be integrated into the ventilation mask 100 in a variety of ways. For example, the magnetic field identification device 200 can be embedded into the ventilation mask 100 by assembly or injection molding, or it can be integrated into the ventilation mask 100 by other methods such as sewing, bonding, or snap-fitting. No limitation is imposed here.

[0082] The preset distance between the magnetic field recognition device 200 and the patient's face can be manually preset. Specifically, when the ventilation mask 100 is worn, the distance between the magnetic field recognition device 200 and the patient's face is 5cm-10cm. Within this distance range, it is ensured that the magnetic field recognition device 200 itself will not interfere with the normal operation of any implanted devices in the patient's body (such as pacemakers, defibrillators, and cochlear implants), while also ensuring the closest possible distance to the patient for optimal recognition results.

[0083] Furthermore, the distance between the magnetic field recognition device 200 and the patient's face is 0.5cm-5cm, and this approach is suitable for patients without implanted devices in their bodies.

[0084] The preset distance can also be adjusted based on the type of mask and the patient group. For example, for children's masks, the preset distance can be 3cm-7cm; for special masks designed to monitor near-field magnetic fields, the preset distance can be less than 1cm. There are no restrictions on the selection of the preset distance.

[0085] The magnetic field identification device 200 is embedded in the ventilation mask 100. Since the ventilation mask 100 is made of non-metallic materials such as silicone and plastic, it can shield or weaken the magnetic field of the magnetic field identification device 200. The magnetic flux density of the magnetic field identification device 200 itself is generally less than 400 mT.

[0086] The magnetic field identification device 200 is independent of whether the ventilation mask 100 is working. That is, the magnetic field identification device 200 can perform magnetic field identification when the ventilation mask 100 is working, and it can also perform magnetic field identification when the ventilation mask 100 is not working.

[0087] Some embodiments in this specification integrate the magnetic field recognition device into the ventilated mask and maintain a preset distance, which ensures the effectiveness and accuracy of magnetic field monitoring while avoiding discomfort or interference to the patient.

[0088] In some embodiments, as shown in FIG1, the ventilation mask 100 may include a pad 1, a frame 2 and a headband 3. The pad 1 is connected to the frame 2 for contact with the patient's face; the headband 3 is connected to the frame 2 for securing the ventilation mask 100; the ventilation mask 100 also includes a bend 4 for connecting the air supply device to the chamber in the pad 1.

[0089] The type of ventilation mask can be varied. For example, ventilation mask 100 can be a full-face mask, a nose mask, or a mouth-nose mask. Furthermore, ventilation mask 100 can also be an adult mask, a child mask, or a 3D-printed custom mask; there are no limitations on this.

[0090] As shown in Figure 1, the ventilation mask 100 includes a pad 1 and a frame 2 connected to the pad 1. The pad 1 is located on the side closer to the patient and is used to create a seal with the patient's face. The frame 2 is located on the side farther from the patient and is used to support the pad 1.

[0091] The ventilation mask 100 also includes a bend 4, one end of which is connected to the pad 1 or frame 2, and the other end of which is used to connect to an air supply device to communicate with a chamber in the pad 1. Ventilation gas can enter the chamber of the pad 1 through the bend 4 for the patient's breathing. The air supply device includes, but is not limited to, a gas generator (such as a ventilator), a gas cylinder device (such as a medical air cylinder), a central air supply system, etc.

[0092] As shown in Figure 1, the ventilation mask 100 also includes a headband 3, which is connected to the frame 2 and used to secure the ventilation mask 100 to the patient's face. The headband 3 can be of various designs, such as a magnetic headband or a zoned tension headband, etc., and is not limited here.

[0093] The bend 4 can also be of various design types. For example, the bend 4 can be connected to the mask body (whether it is a pad or a frame) via a rotatable pivot (e.g., an elbow pivot). This pivot allows the bend to move in multiple degrees of freedom, preventing tubing kinking and improving patient comfort. The connection between the bend and the mask body can be a quick-disconnect interface, allowing patients to temporarily remove the mask without having to remove the entire headband.

[0094] The magnetic field identification device 200 can be disposed on one or more components of the ventilation mask 100. For example, the magnetic field identification device 200 can be disposed on one or more of the frame 2, the pad 1, the bend 4, or the headband 3. The magnetic field identification device 200 can be disposed on one or more of the frame 2, the pad 1, the bend 4, or the headband 3 by means of assembly (or other means such as injection molding).

[0095] Alternatively, the magnetic field identification device 200 can be disposed inside one or more components of the ventilated mask 100. For example, the magnetic field identification device 200 can be disposed inside one or more of the frame 2, the pad 1, the bend 4, or the headband 3. The magnetic field identification device 200 can be disposed inside one or more of the frame 2, the pad 1, the bend 4, or the headband 3 by means of assembly (or by other means such as injection molding).

[0096] Understandably, the ventilation mask 100 may also include other components for achieving its necessary functions, such as structures and implementations of which may be available from the prior art. For example, pressure sensors, temperature sensors, or humidity sensors may be integrated into the padding or frame to monitor the mask's seal, leaks, or breathing gas conditions. These sensors, independent of the magnetic field identification device, together constitute a more comprehensive ventilation mask.

[0097] Some embodiments in this specification clarify the basic structure and connection relationships of the ventilation mask, ensuring that while realizing the magnetic field monitoring function, it always retains the basic functionality and versatility of a ventilation mask.

[0098] The present invention also provides a breathing device, including the aforementioned ventilation mask, and further including an air supply device connected to the ventilation mask. For example, the air supply device may include a gas generator and an air inlet pipe connected to the gas generator, the air inlet pipe being in fluid communication with the ventilation mask. Alternatively, the air supply device may be a small portable gas cylinder and micro-pump directly integrated into the mask frame or headband, which is directly connected to the ventilation mask through an internal channel.

[0099] Some embodiments in this specification combine a ventilation mask with an air supply device to form a complete respiratory device with active magnetic field risk warning capability, thereby improving the safety level of the entire respiratory therapy system.

[0100] Although the invention has been described with reference to preferred embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner as long as there is no structural conflict. The invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A ventilated face mask, characterized in that, It includes a magnetic field identification device, which is used to identify magnetic fields.

2. The ventilated face mask according to claim 1, characterized in that, The magnetic field identification device includes an identification module configured to detect magnetic field parameters to identify one or more types of magnetic field regions.

3. The ventilated face mask according to claim 2, characterized in that, The magnetic field parameters include at least one of magnetic flux density or magnetic field strength.

4. The ventilation mask according to claim 2, characterized in that, The identification module is further configured to identify one or more types of magnetic field regions when the magnetic field parameters meet preset conditions.

5. The ventilated face mask according to claim 2, characterized in that, The magnetic field parameters satisfy the preset conditions, including magnetic flux density exceeding the density threshold or the average value of magnetic flux density reaching the density threshold.

6. The ventilated face mask according to claim 4, characterized in that, The identification module is further configured to identify one or more types of magnetic field regions based on the magnetic field parameters.

7. The ventilated face mask according to claim 6, characterized in that, The one or more types of magnetic field regions include electrostatic magnetic field regions, sudden magnetic field regions, and occupational exposure magnetic field regions.

8. The ventilated face mask according to claim 7, characterized in that, The identification module is further configured to: The region with magnetic flux density greater than or equal to the electrostatic magnetic field threshold is identified as the electrostatic magnetic field region; The region with magnetic flux density greater than the sudden magnetic field threshold is identified as the sudden magnetic field region; and The region where the average magnetic flux density reaches the occupational exposure threshold is identified as the occupational exposure magnetic field region.

9. The ventilated face mask according to claim 8, characterized in that, The electrostatic magnetic field threshold is 0.5 mT, the sudden magnetic field threshold is 3 mT, and the occupational exposure threshold is 200 mT.

10. The ventilated face mask according to claim 2, characterized in that, The recognition module is further configured to identify magnetic fields by recognizing sound or light signals on at least three coordinate axes.

11. The ventilated face mask according to claim 2, characterized in that, The identification module is further configured to periodically detect the magnetic field parameters or to detect the magnetic field parameters at non-fixed time intervals.

12. The ventilated face mask according to claim 11, characterized in that, The identification module is further configured to periodically detect the magnetic field parameters according to the identification frequency.

13. The ventilated face mask according to claim 2, characterized in that, The magnetic field identification module further includes a storage module connected to the identification module, and the storage module is configured to record information about the magnetic field region.

14. The ventilated face mask according to claim 2, characterized in that, The magnetic field identification device further includes a prompting module connected to the identification module. The prompting module is configured to issue one or more corresponding prompting signals when the identification module identifies one or more magnetic field regions of the one or more types.

15. The ventilated face mask according to claim 1, characterized in that, The magnetic field identification device also includes an energy module configured to power the magnetic field identification device.

16. The ventilated face mask according to claim 1, characterized in that, The magnetic field recognition device is integrated into the ventilation mask. When the ventilation mask is worn, the magnetic field recognition device maintains a preset distance from the patient's face.

17. The ventilated face mask according to claim 16, characterized in that, The preset distance is 5cm-10cm.

18. The ventilated face mask according to claim 1, characterized in that, The ventilation mask includes a pad, a frame, and a headband. The pad is connected to the frame and is used to contact the patient's face. The headband is connected to the frame and is used to secure the ventilation mask. The ventilation mask also includes a bend in the tube, which is used to connect the air supply device to the chamber in the liner.

19. A breathing device, characterized in that, The device includes a ventilated face mask according to any one of claims 1-18, and further includes the air supply device connected to the ventilated face mask.

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