Protective breathing training device

Abstract

The protective respiratory training device comprises a gas filtering assembly (1) and a respiratory training assembly (2). The gas filtering assembly (1) is connected by a gas filtering part (11) and an auxiliary part (12). The space enclosed by the two parts is a gas filtering assembly inner cavity (10). The gas filtered by the gas filtering part (11) first enters the gas filtering assembly inner cavity (10) and then flows out through a gas filtering assembly opening (13). The respiratory training assembly (2) comprises a hollow passage part (21) and a resistance adjusting part (22) matched with the passage part (21). The gas passage formed by the two parts is a respiratory training passage (20). The respiratory training passage (20) is provided with a distal end opening (202) and a proximal end opening (201). The distal end opening (202) of the respiratory training passage (20) of the respiratory training assembly (2) is in fluid communication with the gas filtering assembly inner cavity (10), and the proximal end opening (201) of the respiratory training passage (20) is in communication with a respiratory tract opening (0).

Description

Technical Field

[0001] This invention relates to a protective breathing training device, belonging to the field of medical device technology. Background Technology

[0002] Breathing training is a common medical method for improving breathing ability. It can be used to strengthen the muscles of inspiratory and expiratory breathing, improve cardiopulmonary function, increase lung capacity, and improve overall health. For patients with lung diseases or who have undergone lung surgery, it is even more necessary to use a breathing trainer to rehabilitate their breathing ability and promote the rapid recovery of lung function to normal. Breathing training is usually divided into two parts: expiratory training and inspiratory training, which can increase the strength of the expiratory and inspiratory muscles respectively.

[0003] Since particulate matter of varying concentrations and sizes is unavoidable in the human environment, inhaling large amounts can damage the mucociliary clearance system of the trachea and alveoli to varying degrees. This is especially true for patients with pre-existing respiratory diseases, as the tidal volume during breathing training is several times higher than during quiet breathing, and the inhalation of large amounts of particulate matter can lead to lung infections. Patent 201410231150.3 discloses a breathing training device, including an inhalation training component, an exhalation training component, a gas drainage component, and a breathing terminal. The breathing terminal includes a housing and a filter component, allowing inhalation and exhalation training to be performed simultaneously in a clean breathing environment. However, the inhaled and / or exhaled gases need to pass through a thin drainage component, which additionally increases the resistance to inhalation and / or exhalation. Furthermore, the device has too many components, making it inconvenient to operate and difficult for users to wear for daily activities. Patent US20180280758A1 discloses an infinitely adjustable training mask with an air filter and a water dispenser, including an adjustable inhalation resistance component, an exhaust channel component, and a particulate air filter. The particulate air filter is installed inside the adjustable inhalation resistance component to provide respiratory protection for the wearer during inhalation, reducing the risk of inhaling airborne particles during outdoor training, while allowing for hydration at any time. However, the particulate air filter has a small filtration area and a single-layer filter membrane, resulting in poor purification. Moreover, the air resistance generated when the gas flows through the filter membrane increases significantly, further increasing the air resistance during breathing training, interfering with the adjustment of air resistance during breathing training, and reducing the effectiveness of breathing training. Summary of the Invention

[0004] This invention provides a protective breathing training device that allows users to select appropriate breathing training modes and breathing resistance according to individual needs. It also enables breathing training under bidirectional protection during inhalation and exhalation. Furthermore, the three-dimensional structure of the gas filter component multiplies the area of ​​the gas filter component within a limited space, minimizing the resistance of the gas filter component itself during exhalation or inhalation while ensuring purification effect. The device is designed for wearable use with a strap.

[0005] The present invention is implemented as follows: A protective breathing training device includes a gas filtering component and a breathing training component. The gas filtering component is formed by connecting a gas filtering element and an auxiliary element, and the space enclosed by the two is the inner cavity of the gas filtering component. The gas filtered by the gas filtering element first enters the inner cavity of the gas filtering component and then flows out through the opening of the gas filtering component. The breathing training component includes a hollow passage element and a resistance adjustment element that cooperates with it. The gas passage formed by the two when used together is the breathing training passage. The breathing training passage has a distal opening and a proximal opening. The distal opening of the breathing training passage of the breathing training component is in fluid communication with the inner cavity of the gas filtering component, and the proximal opening of the breathing training passage is in communication with the airway opening.

[0006] The auxiliary components perform one or all of the functions such as support, shaping, forming pathways, and regulating flow direction.

[0007] The resistance adjustment component can be an adjustable breathing resistance component or a component with a fixed resistance value; if it is a component with a fixed resistance value, it can be set as a single component with multiple different fixed resistance values, which can be used gradually from low to high during breathing training.

[0008] The proximal opening of the breathing training pathway is connected to the airway opening, which can be a direct connection, such as placing the proximal opening of the breathing training pathway into the mouth or covering the mouth and nose opening; when the design scheme is that the proximal opening of the breathing training pathway is embedded with a gas filter component, it is connected to the airway opening through the opening of the gas filter component; after the resistance adjustment component and the pathway component are used together, the gas pathway formed between the two is the breathing training pathway. The unfolded surface area of ​​the gas filter component is larger than the cross-sectional area of ​​the distal opening of the breathing training pathway, which can reduce the influence of the gas filter component's own resistance on the resistance adjustment range of the breathing training.

[0009] The connection between the proximal opening of the breathing training pathway and the airway opening via the gas filter assembly opening means that the gas filter assembly opening extends into a channel that directly connects to the airway opening, and the proximal opening of the breathing training pathway is located within this channel.

[0010] The gas filter component and the auxiliary component enclose the inner cavity of the gas filter assembly. It can be formed by a single blade-shaped gas filter component and the auxiliary component, or it can be formed by sealing the front and rear blades of the blade-shaped component together to form a gas filter component and then enclosing it with the auxiliary component.

[0011] Furthermore, to reduce volume, at least the distal opening of the breathing training pathway extends into the inner cavity of the gas filter assembly or into the inner cavity pathway of the gas filter assembly.

[0012] To facilitate adjustment of air resistance during breathing training, the resistance adjustment component of the breathing training assembly can be relatively displaced relative to the passage component when rotated, thereby adjusting the air resistance during expiratory and / or inspiratory training.

[0013] Specifically, during rotation, the inlet and outlet cross-sectional area of ​​the airflow regulating port in the breathing training pathway can be adjusted, thereby regulating breathing resistance.

[0014] The relative displacement can be a circular rotational displacement, or a left-right or front-back relative displacement; it can be a direct relative displacement between the resistance adjustment component and the passage component, or an indirect relative displacement with the help of an additional auxiliary component.

[0015] To indicate the air resistance level for exhalation and / or inhalation training, markings such as scale lines can be set on the resistance adjustment component, making it easy for users to select the air resistance for breathing training according to their needs.

[0016] To enable separate training of inhalation or exhalation, a gas barrier component is also included, which allows unidirectional gas flow. The gas barrier component has a gas flow port that communicates with the inner cavity of the gas filter component. When training inhalation, the gas barrier component corresponding to inhalation closes during inhalation and opens during exhalation. When training exhalation, the gas barrier component corresponding to exhalation closes during exhalation and opens during inhalation.

[0017] The gas barrier component can be selected as a one-way valve, which can be used in conjunction with the resistance adjustment component. When the one-way inlet valve is selected, which allows gas to flow from the external environment into the respiratory tract opening, the gas passes through the respiratory training pathway of the respiratory training component during exhalation, thus training the exhalation function. When the one-way outlet valve is selected, which allows gas to flow from the respiratory tract opening to the external environment, the gas flows through the respiratory training pathway during inhalation, thus training the inhalation function.

[0018] One approach is that the device includes at least one gas filter assembly, with auxiliary components of the gas filter assembly extending into two channel tubes, which can be connected to two breathing training assemblies simultaneously or to one breathing training assembly and one gas barrier assembly simultaneously.

[0019] The two channel tubes can extend into two gas filter assembly inner cavity passages, which can be simultaneously connected to the breathing training passage of the breathing training assembly; or they can be connected to the breathing training passage and the gas flow port of the gas barrier assembly respectively.

[0020] The two gas filter assembly inner cavity passages can be two passages set on the same gas filter assembly, or they can be passages set on two separate gas filter assemblies.

[0021] When the channel tube of the gas filter component is connected to only the breathing training component, inhalation and expiratory resistance training can be performed simultaneously; when the channel tube is connected to both the breathing training component and the gas barrier component, expiratory training or inhalation training can be performed separately; when both channel tubes are connected to two breathing training components, the two gas regulating ports on the left and right sides can be adjusted to different cross-sectional areas, i.e., the air resistance on the left and right sides is different, which can produce different airflow distributions on both sides, such as for users with deviated nasal septum.

[0022] The breathing training device also includes a ventilation terminal component, the distal opening of which is connected to the proximal opening of the breathing training pathway, the proximal opening of which is connected to the airway opening, and the periphery of the proximal opening of which conforms to the skin around the mouth and / or nose.

[0023] The ventilation terminal component can be a separate component or an integrated component with the gas filtration assembly or breathing training assembly, that is, the ventilation terminal component is set on the gas filtration assembly or breathing training assembly.

[0024] The periphery of the proximal opening of the ventilation terminal component conforms to the facial skin. It can conform to the nasal skin for nasal breathing training only, conform to the oral skin for oral breathing training only, or conform to the skin of both the mouth and nose for oral and / or nasal breathing training at the same time.

[0025] The periphery of the proximal opening of the ventilation terminal component conforms to the facial skin. The part in contact with the skin consists of an integrated nasal area, mouth area, and oral-nasal transition area. When in use, the periphery of the proximal opening of the ventilation terminal component conforms to the face to form a respiratory cavity isolated from the external environment.

[0026] When the mouth opens, the temporomandibular joint movement causes a gap to form between the ventilation terminal component and the facial skin. To eliminate the risk of inhaling pathogenic particles in the air through this gap, at least one elastic unit that can contact the periphery of the mouth area of ​​the ventilation terminal component is also included. The elastic unit can deform and / or displace accordingly due to the movement of the facial skin in the mouth area.

[0027] The external respiratory cavity refers to the space between the openings of the oral and nasal airways and the proximal opening of the breathing training pathway.

[0028] The target area of ​​the elastic unit is located in the mouth area of ​​the ventilation terminal component that is in contact with the skin around the lower lip or in the mouth area of ​​the ventilation terminal component that is in contact with the skin of both cheeks; the elastic unit can act directly or indirectly on the above-mentioned target area.

[0029] Considering the mechanical balance of the synchronous displacement of the ventilation terminal component that contacts the facial skin when the user opens their mouth, it is preferable to design two sets of elastic units on the left and right sides, respectively acting on the area of ​​the ventilation terminal component near the opening that contacts the user's left and right cheeks.

[0030] To provide additional health benefits during breathing training, the device also includes a negative ion generator that generates negative ions in the air. At least the negative ion generator, such as a carbon brush or metal tip, is located in the external breathing cavity and / or breathing training pathway. It releases negative ions at close range, and the surrounding air is filtered and pure, resulting in the highest negative ion production and human utilization rate. The device typically generates negative oxygen ions.

[0031] To ensure a more stable, continuous, and high-concentration supply of negative ions, an electronic supply component is also included. The electronic supply component is made of materials rich in free electrons and / or on which free electrons can easily flow, such as various metals, conductive rubber, conductive ceramics, piezoelectric materials, etc. The electronic supply component is directly and / or indirectly connected to the negative ion assembly N.

[0032] To fully humidify and warm the dry, cold air inhaled during breathing training, a hydrogel component is also included. The hydrogel component can be placed in the external respiratory cavity and / or the breathing training pathway. Each time the user exhales a humid and hot air, some of the water vapor will condense on the surface of the hydrogel component, and some of the heat will be absorbed by the hydrogel body. When inhaling, the water evaporates again, and the heat is released and mixed into the low-temperature, dry airflow.

[0033] In order to allow the inhalation of other beneficial gases during breathing training, the device is also equipped with at least one external fluid interface that can be connected to medical gas pipelines such as oxygen, hydrogen, and helium, as well as the output pipeline of the nebulizer.

[0034] For aesthetic purposes, a thin sheet-like faceplate is included that covers the breathing training device during use, and the elastic unit and the straps for the fixing device can be connected to the faceplate.

[0035] The beneficial effects of this invention are:

[0036] 1. The gas filter assembly's inner cavity is fluidly connected to the breathing training pathway. Both inhaled and exhaled gases are purified by the gas filter assembly before entering the human respiratory tract or external environment, ensuring bidirectional protection during inhalation and exhalation. Furthermore, the three-dimensional structure of the gas filter assembly multiplies the gas filter component area within a limited space, minimizing air resistance during inhalation or exhalation while ensuring purification effectiveness.

[0037] 2. By simply replacing the breathing training component and the gas barrier component, independent exhalation training, inhalation training, or simultaneous exhalation and inhalation training can be achieved. The required air resistance level can be adjusted according to the scale markings, and can be changed at any time according to the user's needs. The operation is simple and convenient.

[0038] 3. The periphery of the proximal opening of the ventilation terminal component conforms to the facial skin, allowing for mouth breathing training, nasal breathing training, or simultaneous mouth and nose breathing training. The breathing training device is wearable and is not affected by the user's environment; breathing training can be performed while sitting, lying down, standing, or even walking.

[0039] 4. The ventilation terminal unit is connected to an elastic unit, which can deform and / or shift according to the movement of the facial skin in the mouth area. This achieves dynamic sealing of the ventilation terminal unit to the facial skin in the mouth area when the temporomandibular joint moves during mouth breathing training, ensuring the respiratory protection effect during training.

[0040] 5. The breathing training device is equipped with a negative ion component including an electronic supply unit, which can provide a more stable, continuous, and high-concentration supply of negative ions. The pure negative ion content generated after purification can reach millions per cubic centimeter, avoiding the additional harm caused by the combination of particulate matter and negative ions. Only pure negative ions can better exert their beneficial biological effects on the human body.

[0041] 6. The biomimetic nasal mucosa mucus blanket design of the hydrogel component adheres to the respiratory cavity. The saturated water vapor exhaled by the user is rehydrated on the surface of the hydrogel component and evaporates during inhalation. When encountering dry and cold air, it continuously humidifies and warms the inhaled air. When encountering humid and hot air, the hydrogel absorbs moisture and heat to dehumidify and cool down. Attached Figure Description

[0042] The following figures are not limited to the present invention:

[0043] Figure 1A : Three-dimensional schematic diagram of Example 1

[0044] Figure 1B Example 1: A cross-sectional view from one perspective

[0045] Figure 1C Cross-sectional view from another perspective in Example 1

[0046] Figure 1D Schematic diagram of different resistance adjustment settings

[0047] Figure 1E Cross-sectional view of the separated breathing training components

[0048] Figure 1F Cross-sectional view of the breathing training components after assembly.

[0049] Figure 1G Partial cross-sectional diagram of the gas filter assembly

[0050] Figure 2A : 3D exploded view of Example 2

[0051] Figure 2B Cross-sectional view of Example 2

[0052] Figure 2C Schematic diagram of breathing training component and gas barrier component

[0053] Figure 2D Cross-sectional view of the breathing training component and the gas barrier component

[0054] Figure 2E Partial cross-sectional view of the gas filter assembly

[0055] Figure 3A Schematic diagram of Example 3

[0056] Figure 3B Example 3: Schematic diagram of the gas barrier assembly

[0057] Figure 3C Cross-sectional view of Example 3

[0058] Figure 4A Cross-sectional view of one embodiment of Example 4

[0059] Figure 4B Cross-sectional view of another embodiment of Example 4

[0060] Figure 4C Cross-sectional view of another embodiment of Example 4

[0061] Figure 5A Example 5: Schematic diagram of placement on the face

[0062] Figure 5B Example 5: A schematic diagram from one perspective

[0063] Figure 5C Cross-sectional view from another perspective in Example 5

[0064] Figure 5D Cross-sectional view from another perspective in Example 5

[0065] Figure 6A Example 6: Cross-sectional view of the elastic unit in one state

[0066] Figure 6B Cross-sectional view of another state of the elastic unit in Example 6

[0067] Figure 6C Example 6: A three-dimensional schematic diagram from one perspective.

[0068] Figure 6D Example 6: A three-dimensional schematic diagram from another perspective.

[0069] Figure 6E Example 6: A cross-sectional view from one perspective

[0070] Figure 6F 3D schematic diagram of hydrogel component

[0071] Figure 6G Schematic diagram of hydrogel components placed in the respiratory cavity

[0072] Figure 6H Overall schematic diagram of Example 6 Detailed Implementation

[0073] The embodiments of the present invention are not limited to the following:

[0074] Example 1:

[0075] like Figure 1A-1G As shown, a protective breathing training device includes a gas filter assembly 1 and a breathing training assembly 2; Figure 1B , Figure 1G As shown, the gas filter assembly 1 is composed of a gas filter component 11 and an auxiliary component 12 connected together. The space enclosed by the two is the inner cavity 10 of the gas filter assembly. During inhalation, the gas filtered by the gas filter component 11 first enters the inner cavity 10 of the gas filter assembly and then flows out through the opening 13 of the gas filter assembly. The opposite occurs during exhalation. The breathing training assembly 2 includes a hollow passage component 21 and a resistance adjustment component 22 that works with it. When used together, the two form a breathing training passage 20. The breathing training passage 20 has a distal opening 202 and a proximal opening 201. The distal opening 202 of the breathing training passage 20 of the breathing training assembly 2 is in fluid communication with the inner cavity 10 of the gas filter assembly, and the proximal opening 201 of the breathing training passage 20 is in communication with the airway opening 0. Figure 1A-1CAs shown, it also includes a ventilation terminal component 3. The distal opening 32 of the ventilation terminal component 3 communicates with the proximal opening 201 of the breathing training pathway 20. In this example, the tubular connecting part 35 of the ventilation terminal component 3 is sealed and fitted into the tubular protrusion 203 on the pathway component 21. The proximal opening 31 of the ventilation terminal component 3 communicates with the airway opening 0. A ventilation cavity 30 is formed between the distal opening 32 and the proximal opening 31. The ventilation terminal component 3 can be an independent component or integrated with the gas filter assembly 1 and / or the breathing training assembly 2. In this embodiment, the ventilation terminal component 3 is an independent component, extending from the auxiliary component 12 of the gas filter assembly 1 to form the gas filter assembly cavity pathway 1. The breathing training pathway 20 is fluidly connected and sealed to the gas filter assembly inner cavity pathway 100. During inhalation, ambient air is purified by the gas filter component 11 of the gas filter assembly 1 before entering the gas filter assembly inner cavity pathway 100, then the breathing training pathway 20, and finally flows into the respiratory tract opening 0 through the ventilation cavity 30, completing one inhalation training process. During exhalation, the exhaled air first enters the ventilation cavity 30, then enters the gas filter assembly inner cavity 10 through the breathing training pathway 20, and finally enters the ambient air after being purified by the gas filter component 11, completing one exhalation training process without causing particulate pollution to the environment. Figure 1B , 1C The thin line with the arrow in the middle indicates the path of airflow during inhalation training.

[0076] like Figure 1D-1F As shown, in this embodiment, the breathing training component 2 consists of a pathway component 21, a resistance adjustment component 22, and a positioning component 24, which are assembled into a single unit as follows: Figure 1FWhen the resistance adjustment component 22 of the breathing training component 2 rotates, it can be relatively displaced with the passage component 21, thereby adjusting the air resistance during expiratory and / or inspiratory training. The hollow passage component 21 and the resistance adjustment component 22, when used together, form a breathing training passage 20 with a distal opening 202 and a proximal opening 201. The passage component 21 is provided with arc-shaped airflow adjustment ports 210 located within the breathing training passage 20, between the distal opening 202 and the proximal opening 201, and indicator protrusions 211 corresponding to the scale line S on the resistance adjustment component 22. The resistance adjustment component 22 is provided with... The breathing training pathway 20 includes a gas channel 220, a conformal shielding part 223, and a through-path 221 that allows the indicator protrusion 211 to move in a circular motion. The conformal shielding part 223 is arc-shaped and matches the airflow regulating port 210, which is also arc-shaped. The resistance regulating component 22 passes through the through hole 212 on the pathway component 21 and is connected to the positioning component 24. It can be connected as a whole by bonding or welding to ensure that the resistance regulating component 22 will not detach from the pathway component 21 during rotation. During rotation, the conformal shielding part 223 on the resistance regulating component can adjust the inlet and outlet cross-sectional area of ​​the airflow regulating port 210 through circular motion, thereby adjusting the breathing resistance. Figure 1D The diagram on the left shows that the indicator protrusion 211 is located at the "1" position of the scale line S. At this time, the arc-shaped airflow regulating port 210 is not blocked by the conformal obstruction part 223, the airflow regulating port 210 has the largest inlet and outlet cross-sectional area, and the air resistance is minimized during inhalation and / or exhalation training. Figure 1D As shown in the right figure, after the resistance adjustment component 22 is rotated counterclockwise, the indicator protrusion 211 is located at the "6" position of the scale line S. At this time, the arc-shaped airflow adjustment port 210 is partially blocked by the conformal blocking part 223, the inlet and outlet cross-sectional area becomes smaller, and the air resistance increases during inhalation and / or exhalation training.

[0077] like Figure 1GAs shown, in this embodiment, the gas filter assembly 1 is formed by a gas filter component 11 and an auxiliary component 12 sealed together. The internal space of the channel tube 122 on the auxiliary component 12 is the gas filter assembly inner cavity passage 100, and the space supported by the support frame 121 of the auxiliary component 12 is the gas filter assembly inner cavity 10. At least the distal opening 202 of the breathing training passage 20 extends into the gas filter assembly inner cavity 10 or communicates with the gas filter assembly inner cavity passage 100 (figure omitted). The gas filter component 11 is composed of multiple electret fiber filter membranes, which together with the auxiliary component 12, which has a dendritic three-dimensional support structure, form the gas filter assembly inner cavity 10. This multiplies the area of ​​the gas filter component 11 within a limited space, ensuring that the surface area of ​​the gas filter component 11 is greater than the cross-sectional area of ​​the distal opening 202 of the breathing training passage 20. This minimizes the resistance when the gas passes through the gas filter component 11, so that the air resistance during breathing training changes only or mainly according to the change in the cross-sectional area of ​​the airflow regulating port 210. This reduces the influence of the gas filter component 11's own resistance on the resistance adjustment range of breathing training, making the air resistance adjustment during breathing training more accurate.

[0078] Example 2:

[0079] like Figures 2A-2E As shown, unlike Embodiment 1, it also includes a gas barrier component 5 that allows gas to flow in one direction, such as... Figure 2B The hollow gas barrier component 5 has a gas flow port 50 on its main channel component 51. The gas flow port 50 is covered by a deformable gas barrier component 52, and the gas flow port 50 is connected to the inner cavity 10 of the gas filter component. When used for training inhalation function, the gas barrier component 52 on the gas barrier component 5 deforms, opening the gas flow port 50 during exhalation to exhale with almost no resistance, and closing it during inhalation. When used for training exhalation function, the corresponding gas flow port 50 on the gas barrier component 5 closes during exhalation and opens during inhalation (figure omitted). This embodiment shows the gas barrier component during inhalation function training. The structural diagram of the device shows that the breathing training device includes a gas filter assembly 1 with a gas filter assembly cavity 10. The auxiliary component 12 of the gas filter assembly 1 extends into two channel tubes 122, which are connected to a breathing training assembly 2 and a gas barrier assembly 5. The internal space of the channel tubes 122 forms a first inner cavity passage 100a and a second inner cavity passage 100b, which can be connected to the breathing training passage 20 of the breathing training assembly 2 or the gas flow port 50 of the gas barrier assembly 5, respectively. It also includes a ventilation terminal component 3, whose ventilation cavity 30 is in fluid communication with the breathing training passage 20 and the gas flow port 50. Figure 2A This diagram shows the gas filter assembly 1, the breathing training assembly 2, and the ventilation terminal component 3 when separated. Figure 2BThe diagram shows the combined gas filter assembly 1, breathing training assembly 2, and ventilation terminal component 3. When the user inhales, external air is purified by the gas filter component 11 of the gas filter assembly 1 before entering the second inner cavity passage 100b. It then enters the ventilation cavity 30 through the breathing training passage 20, and finally enters the lungs through the human respiratory tract opening, completing one inhalation training cycle. During this process, the gas barrier component 52 on the gas barrier assembly 5 closes the gas flow port 50. When the user exhales, the gas flow port 50 of the gas barrier assembly 5 opens, and almost all the exhaled air enters the first inner cavity passage 100a through the gas flow port 50. It is then purified by the gas filter component 11 of the gas filter assembly 1 before entering the external environment. Figure 2B The thin line with the arrow in the middle indicates the path of gas flow during exhalation.

[0080] like Figure 2C , 2D This diagram shows the structure of the breathing training component 2 and the gas barrier component 5. Figure 2C The indicator protrusion 211 of the middle passage component 21 corresponds to the "5" position of the scale line S of the resistance adjustment component 22. At this time, the arc-shaped airflow adjustment port 210 is partially blocked by the conformal blocking part 223. The left and right rotation operation can cause the resistance adjustment component 22 and the passage component 21 to move relative to each other, which can change the position of the scale line S corresponding to the indicator protrusion 211. In this way, the air resistance can be adjusted during breathing training by changing the ventilation cross-sectional area of ​​the arc-shaped airflow adjustment port 210. Figure 2D The left side is a cross-sectional view of the gas barrier assembly 5. It can be seen that in this example, the gas barrier assembly 5 is a one-way valve structure. The gas barrier assembly 5 consists of a main channel component 51 and an airflow blocking component 52. The main channel component 51 has a gas flow port 50 that can be covered by the airflow blocking component 52. The airflow blocking component 52 is located on the side of the main channel component 51 away from the ventilation cavity of the ventilation terminal component 3 (see...). Figure 2B , 2D The airflow blocking component 52 is composed of a soft plastic sheet that can be deformed and shifted by airflow impact. During inhalation, the airflow blocking component 52 tightly covers the airflow opening 50, preventing air from passing through and ensuring that air can only enter the respiratory tract through the breathing training pathway 20. During exhalation, see... Figure 2B The airflow blocking component 52 is deflected due to the airflow impact, causing the gas flow port 50 to open. Almost all the exhaled air flows out from the gas flow port 50 with low resistance, ensuring that the purpose of simple inhalation training is achieved.

[0081] like Figure 2EAs shown, the gas filter assembly 1 is formed by a gas filter component 11 and an auxiliary component 12 sealed together. The auxiliary component 12 of the gas filter assembly 1 extends out two channel tubes 122, forming a first inner cavity passage 100a and a second inner cavity passage 100b. The gas filter component 11 is supported and shaped by the auxiliary component 12 with a dendritic three-dimensional support structure. The surface area of ​​the gas filter component 11 is much larger than the cross-sectional area of ​​the distal opening 202 of the breathing training passage 20. The resistance of the gas filter component itself has almost no effect on the resistance adjustment range of the breathing training.

[0082] Example 3:

[0083] like Figures 3A-3C As shown, unlike Embodiment 2, this embodiment illustrates training the expiratory function. The gas blocking component 5 consists of a main channel component 51 and an airflow blocking component 52. The airflow blocking component 52 is located on the side of the main channel component 51 near the ventilation cavity 30 of the ventilation terminal component 3 (see...). Figure 3B , 3C During exhalation, the airflow blocking component 52 tightly covers the gas flow port 50, preventing gas from passing through and ensuring that gas can only enter the external environment through the breathing training pathway 20 during exhalation (figure omitted). During inhalation, as... Figure 3C As shown, the airflow blocking component 52 is deflected due to the airflow impact, causing the gas flow port 50 to open. Almost all the inhaled air passes through the gas flow port 50 with low resistance, and there is almost no resistance when inhaling, thus ensuring the purpose of simple exhalation training.

[0084] Specifically, the auxiliary component 12 of the gas filter assembly 1 extends two channel tubes 122, forming a first inner cavity passage 100a and a second inner cavity passage 100b. The first inner cavity passage 100a and the second inner cavity passage 100b are simultaneously located on one gas filter assembly 1 and communicate with the inner cavity 10 of the gas filter assembly. The first inner cavity passage 100a communicates with the gas flow port 50 of the gas barrier component 5, and the second inner cavity passage 100b communicates with the breathing training passage 20 of the breathing training component 2. When the user exhales, the exhaled air enters the breathing training passage 20 through the ventilation inner cavity 30, then enters the inner cavity 10 of the gas filter assembly through the second inner cavity passage 100b, and finally enters the external environment after being purified by the gas filter component 11, completing one exhalation training cycle. When the user inhales, as... Figure 3C As shown, the gas flow port 50 of the gas barrier component 5 is open, and the air purified by the gas filter component 11 enters the first inner cavity passage 100a, then enters the ventilation inner cavity 30 through the gas flow port 50, and finally enters the human respiratory tract. Figure 3C The thin line with the arrow in the middle indicates the path of gas flow during intake.

[0085] Example 4:

[0086] like Figures 4A-4C As shown, unlike Embodiment 1, the breathing training component 2 includes a hollow passage component 21 and a resistance adjustment component 22 used in conjunction with it. The resistance adjustment component 22 consists of a rotating body 221 and an adjusting body 222. When the operating part 221a of the rotating body 221 is rotated, the adjusting body 222 can be moved up and down. The distance between the top surface 2221 of the adjusting body 222 and the bottom surface 511 of the main channel component 51 of the gas barrier component 5 changes, that is, the cross-sectional area through which the gas flows changes, resulting in a change in the air resistance of the gas flowing into the airway opening through the breathing training passage 20, thus achieving the purpose of breathing training. A sealing ring L is provided around the bottom of the passage component 21 to ensure the seal between the rotating body 221 and the passage component 21 and prevent gas leakage.

[0087] like Figure 4A As shown, the distal opening 202 of the breathing training pathway 20 of the breathing training component 2 is in fluid communication with the inner cavity 10 of the gas filter component, the proximal opening 201 of the breathing training pathway 20 is in communication with the distal opening 32 of the ventilation terminal component 3, and the proximal opening 31 of the ventilation terminal component 3 is in communication with the airway opening 0 (the diagram of the inner cavity 10 of the gas filter component and the airway opening 0 is omitted). At this time, the gas barrier component 5 is only composed of the main channel component 51 with a gas flow port 50. The gas barrier component 5 is placed inside the hollow passage component 21. The distance between the bottom end surface 511 of the main channel component 51 and the top end surface 2221 of the adjusting body 222 can be adjusted by... The resistance level changes as the regulator 222 moves up and down. During breathing training, the user pre-adjusts the appropriate resistance level. During inhalation, ambient air is purified by the gas filter component 11 and enters the breathing training pathway 20 through the distal opening 202, then enters the ventilation chamber 30 through the proximal opening 201, and finally enters the human respiratory tract. During exhalation, the exhaled air flows into the breathing training pathway 20 through the ventilation chamber 30, then flows into the gas filter component chamber 10 through the distal opening 202, and finally enters the external environment after being purified by the gas filter component 11. This completes one exhalation training and one inhalation training. Figure 4A The thin line with the arrow in the middle indicates the gas flow path during intake (diagram of gas filter assembly inner cavity 10 omitted).

[0088] like Figure 4B , 4CAs shown, in a modified embodiment 4, the breathing training component 2 includes two hollow passage components 21, which cooperate with the resistance adjustment component 22 to form two independent breathing training passages 20. Each breathing training passage 20 is connected to a gas blocking component 5, which consists of a main channel component 51 and an airflow blocking component 52. The main channel component 51 has a gas flow port 50 that can be covered by the airflow blocking component 52. The airflow blocking component 52 is made of a soft plastic sheet, which can be deflected by the airflow impact when gas passes through. The airflow blocking component 52 in the left breathing training passage 20 is located above the main channel component 51, i.e., closer to the ventilation cavity 30, and the gas flow port 50 can only open during inhalation. The airflow blocking component 52 in the right breathing training passage 20 is located below the main channel component 51, i.e., away from the ventilation cavity 30, and the gas flow port 50 is open during inhalation. Mouth 50 can only be opened during exhalation; this unique design allows for simultaneous exhalation and inhalation training, with different resistance levels set for each. For example, if higher air resistance is needed during exhalation training and lower air resistance is needed during inhalation training, the rotating body operating part 221a of the resistance adjustment component 22 can be rotated to cause the adjustment body 222 to move up and down. This increases the distance between the top surface 2221 of the left adjustment body 222 and the bottom surface 511 of the main channel component 51 of the left air barrier component 5, while decreasing the distance between the top surface 2221 of the right adjustment body 222 and the bottom surface 511 of the main channel component 51 of the right air barrier component 5. In other words, the resistance to airflow through the left breathing training pathway 20 is lower, while the resistance to airflow through the right breathing training pathway 20 is higher, achieving the training objective of higher air resistance during exhalation and lower air resistance during inhalation. Figure 4C The two thin lines with arrows on the left and right represent the airflow paths during inhalation and exhalation, respectively.

[0089] Example 5:

[0090] like Figures 5A-5DAs shown, unlike Embodiment 2, the periphery 33 of the proximal opening of the ventilation terminal component 3 conforms to the facial skin, that is, the periphery 33 of the proximal opening of the ventilation terminal component 3 can conform to the nasal skin and / or oral skin. The ventilation terminal component 3 can be a separate component or integrated with the breathing training component 2 or the gas filter component 1. In this embodiment, the part of the ventilation terminal component 3 that contacts the skin consists of an integrated nasal area 331, a mouth area 332, and a naso-oral transition area 333. After the device is fastened to the face, it forms a respiratory cavity 00 isolated from the external environment. The periphery 33 of the proximal opening of the ventilation terminal component 3 is usually made of a flexible material such as silicone rubber or thermoplastic elastomer, and at least the periphery is folded to conform to the facial skin. During breathing training, the human body can use the mouth training area. Training can also be done through the nose, or simultaneously through the mouth and nose. The gas filter assembly 1, the breathing training assembly 2, and the ventilation terminal component 3 are detachably connected. In this example, there are two gas filter assemblies 1 with gas filter assembly cavities 10. The internal spaces of the channel tube 122 on the auxiliary component 12 of the gas filter assembly 1 form a first cavity passage 100a and a second cavity passage 100b, respectively. When the first cavity passage 100a is connected to the breathing training passage 20 and the second cavity passage 100b is connected to the gas flow port 50, only the exhalation function or the inhalation function can be trained. When the first cavity passage 100a and the second cavity passage 100b are simultaneously connected to the breathing training passage 20, that is, without using the gas barrier assembly 5, the inhalation function and the exhalation function can be trained simultaneously.

[0091] like Figures 5B-5D As shown, in the exhalation training mode, the first internal passage 100a is fluidly connected to the breathing training passage 20 of the breathing training component 2, and the second internal passage 100b is fluidly connected to the gas flow port 50 of the gas barrier component 5. The airflow barrier component 52 is located on the side of the main channel component 51 near the external respiratory cavity 00. The gas barrier component 5 closes during exhalation and opens during inhalation (see...). Figure 5D During exhalation training, inhalation occurs first. The ambient air is purified by the gas filter component 11 and enters the second inner cavity passage 100b, then through the outer respiratory cavity 00, and finally into the human respiratory tract. At this time, the larger gas flow port 50 is almost fully open due to the airflow impact, and the resistance when the gas passes through is very small. During exhalation, the exhaled air enters the outer respiratory cavity 00, then enters the first inner cavity passage 100a through the breathing training passage 20 with training resistance, and finally enters the ambient air after being purified by the gas filter component 11. During exhalation, the gas flow port 50 is closed, completing one exhalation training cycle. Figure 5C The diagram shows a cross-sectional view of the resistance regulating component 22, with the thin lines marked with arrows representing the gas flow path during exhalation. Figure 5D A cross-sectional view of the gas barrier assembly 5 is shown.

[0092] Alternatively, it can be replaced with a gas blocking component 5 for inhalation training, i.e., the airflow blocking component 52 is located on the side of the main channel component 51 away from the external respiratory cavity 00, and the gas flow port 50 of the gas blocking component 5 is closed during inhalation and open during exhalation.

[0093] Example 6:

[0094] like Figures 6A-6H As shown, unlike Embodiment 5, the device also has at least one external fluid interface F (…). Figure 6C The system includes a main housing C that connects to medical gas pipelines such as oxygen, hydrogen, and helium, as well as the output pipeline of a nebulizer (figure omitted). This fluid interface F needs to be sealed when not in use. It also includes a main housing C that works in conjunction with the ventilation terminal component 3. To achieve a dynamic seal between the ventilation terminal component 3 and the facial skin during breathing training, it includes at least one elastic unit 4 that can contact the ventilation terminal component 3. The elastic unit 4 can deform and / or displace according to the movement of the facial skin in the mouth area 332. In this embodiment, the elastic unit 4 is composed of a component capable of joint-like rotation. One end is connected to the ventilation terminal component 3, and the other end is connected to the main housing C. It is positioned on the left and right cheeks facing the user, functioning symmetrically or nearly symmetrically. It is a joint-type elastic unit. 4 is composed of a rigid joint seat 4a, a flexible, elastically compressible and stretchable joint body 4b, and a rigid joint head 4c. The joint seat 4a is fixed to the main shell C, or it can be integrated with the main shell C as a single component. The joint body 4b is detachably fixed to the joint seat 4a. The joint body 4b and the joint head 4c are rotatably and detachably connected. The joint head 4c is detachably connected to the ventilation terminal component 3, which can be a fixed integral connection or a rotatable connection. When the user closes their mouth, the jaw joint closes. Due to the tension of the strap (figure omitted), the facial skin in the oral region is in close contact with the oral region 332 of the ventilation terminal component 3. The elastic unit 4 is deformed and / or displaced by the pressure of the corresponding part of the oral region 332 of the ventilation terminal component 3, and elastic energy is stored (see figure). Figure 6A When the user opens their mouth, the jaw joint moves the facial skin in the oral region downwards and backwards, partially relieving the pressure on the joint-type elastic unit 4. The elastic potential energy is released, driving the corresponding area of ​​the oral region 332 of the ventilation terminal component 3 to move downwards and backwards synchronously via the elastic unit 4 (see...). Figure 6B This achieves a dynamic seal between the mouth and facial skin during breathing training, as the temporomandibular joint moves when the mouth is opened, ensuring effective respiratory protection during training.

[0095] like Figure 6C-6EAs shown, in order to inhale air negative ions beneficial to human health while breathing training, a negative ion component N is also included. The negative ion generating end N1 of the negative ion component N is located in the respiratory cavity 00. The negative ion component N consists of a negative ion generator N0 and a negative ion generating end N1. The negative ion generator N0 is connected to the power module P through a power line N2. The negative ion generating end N1 of the negative ion component N, such as a carbon brush or a metal tip, is exposed in the respiratory cavity 00. To ensure a more stable, continuous, and high-concentration supply of negative ions, an electronic supply component is also included. The electronic supply component is made of materials rich in free electrons and / or materials that facilitate the flow of free electrons, such as various metals, conductive rubber, conductive ceramics, piezoelectric materials, etc. The electronic supply component is directly and / or indirectly connected to the negative ion component N. In this embodiment, the electronic supply component is a strap B that can transfer electrons and comes into contact with the user's head and neck skin. The functional ground line N3 of the negative ion component N is connected to the joint body 4b through a metal conductive ring. The joint body 4b is connected to the strap. B refers to the connection of the electronic supply component, that is, the strap B is indirectly connected to the functional ground wire N3 of the negative ion component N. The joint body 4b is made of a material rich in free electrons and / or on which free electrons can easily flow, such as conductive silicone. When in use, the strap B is fixed to the head and / or neck, directly or indirectly contacting the skin, and continuously providing free electrons to the negative ion component N through the joint body 4b, ensuring that the negative ion generating end N1 can release stable, continuous, and high-concentration negative oxygen ions. It also serves to press the breathing terminal component 3 against the facial skin and make it fit tightly. During breathing training, the purified airflow passes through the negative ion generating end N1 to generate pure negative oxygen ions before being inhaled into the human respiratory tract. The negative oxygen ions are released at close range, and the air in the external respiratory cavity 00 is all filtered clean air, resulting in the highest negative oxygen ion production and human utilization rate. For ease of use, it also includes a switch button O and a charging interface U. The negative ion component can be turned on or off by pressing the switch button O, and the power module P can be charged through the charging interface U.

[0096] like Figure 6F , 6GAs shown, due to the significant increase in tidal volume during breathing training, a hydrogel component W is included to humidify and warm the inhaled gas during breathing training. The hydrogel component W is manufactured using a one-piece molding method, and the materials include natural polymers such as potassium-sensitive carrageenan, konjac gum, and xanthan gum, with a water content of over 90%. Auxiliary materials such as peppermint and jasmine extracts can also be added to the hydrogel component W to adjust the odor. To increase stability, the hydrogel component W has two channel structures W0 to fit onto the breathing training component 2 and the gas barrier component 5. The lower surface of component W has a protruding and hollow recess W1. When in use, the upper surface of hydrogel component W faces the human respiratory tract, and the lower surface of hydrogel component W faces the ventilation terminal component 3. Pressing the hollow recess W1 to expel the gas in the recess helps to create negative pressure, which helps the lower surface of hydrogel component W to firmly adhere to the device used with it, so as to maximize the warming and humidification of the dry and cold air inhaled by the human body. For aesthetic purposes, a thin sheet-like face shell M is also included, which can be attached to the face shell M by means of a strap B, or a separate headband can be provided to be attached to the face shell.

Claims

1. A protective breathing training device, comprising a gas filter assembly (1) and a breathing training assembly (2), wherein the gas filter assembly (1) is formed by connecting a gas filter component (11) and an auxiliary component (12), the space enclosed by the two is the inner cavity (10) of the gas filter assembly, the gas filtered by the gas filter component (11) first enters the inner cavity (10) of the gas filter assembly, and then flows out through the opening (13) of the gas filter assembly; the breathing training assembly (2) comprises a hollow passage component (21) and a resistance adjustment component (22) therewith, the gas passage formed by the two is the breathing training passage (20), the breathing training passage (20) is provided with a distal opening (202) and a proximal opening (201), characterized in that: The distal opening (202) of the breathing training pathway (20) of the breathing training component (2) is in fluid communication with the inner cavity (10) of the gas filter component, and the proximal opening (201) of the breathing training pathway (20) is in communication with the airway opening (0). The distal opening (202) of the breathing training pathway (20) extends into the inner cavity (10) of the gas filter assembly or the inner cavity pathway (100) of the gas filter assembly; It also includes a gas barrier component (5) that allows gas to flow in one direction. The gas barrier component (5) is provided with a gas flow port (50), which is connected to the inner cavity (10) of the gas filter component. The gas flow port (50) is covered and connected with a deformable gas barrier component (52). The gas filter component (11) is composed of multiple electret fiber filter membranes and is enclosed by an auxiliary component (12) with a dendritic three-dimensional support structure to form the gas filter assembly cavity (10), such that the surface area of ​​the gas filter component (11) is greater than the cross-sectional area of ​​the distal opening (202) of the breathing training passage (20).

2. The protective breathing training device according to claim 1, characterized in that: When the resistance adjustment component (22) of the breathing training component (2) rotates, it can be relatively displaced with the passage component (21) to adjust the air resistance during expiratory training and / or inspiratory training.

3. The protective breathing training device according to claim 2, characterized in that: It also includes a ventilation terminal component (3), the distal opening (32) of the ventilation terminal component (3) is connected to the proximal opening (201) of the breathing training pathway (20), the proximal opening (31) of the ventilation terminal component (3) is connected to the airway opening (0), and the periphery (33) of the proximal opening of the ventilation terminal component (3) conforms to the skin around the mouth and / or nose.

4. The protective breathing training device according to claim 2, characterized in that: It also includes a negative ion component (N), the negative ion generating end of which is located within the breathing training pathway (20).

5. The protective breathing training device according to claim 4, characterized in that: It also includes an electron supply component, which is made of a material rich in free electrons and / or on which free electrons can easily flow, and is connected to the negative ion component (N) when in use.

6. The protective breathing training device according to claim 4, characterized in that: It also includes a hydrogel component (W), which can be placed within the breathing training pathway (20).

7. The protective breathing training device according to claim 4, characterized in that: The device is also equipped with at least one fluid interface (F) for external connection.

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