A cardiopulmonary rehabilitation training wearable device

Abstract

The application relates to a wearable device for cardiopulmonary rehabilitation training and belongs to the technical field of medical devices. The wearable device for cardiopulmonary rehabilitation training comprises a mask, a middle partition shell, a push plate and a sliding pipe. The mask comprises a back plate, a side plate and a support plate, which cooperate to form a containing cavity. An exhalation pipe is arranged on one side of the support plate, and an inhalation hole is arranged above the exhalation pipe. The middle partition shell is arranged in the middle region of the containing cavity and is provided with an air inlet hole and a nasal inhalation box above. The push plate is slidingly arranged in the inner cavity of the middle partition shell, thereby dividing the inner cavity into a liquid injection cavity and an air transmission cavity. Liquid is arranged in the liquid injection cavity. The air inlet hole is in communication with the bottom of the liquid injection cavity. The nasal inhalation box is in communication with the inhalation hole and the air transmission cavity. A first one-way valve is arranged on the upper side of the push plate. The sliding pipe is arranged below the middle partition shell and is in communication with the exhalation pipe. A sliding plate is slidingly arranged in the inner cavity of the sliding pipe. The sliding plate is configured to reciprocally and linearly slide in the same direction as the push plate. The exhalation resistance is adjusted by the liquid to adapt to the training intensity requirements of patients in different rehabilitation stages, thereby improving the rehabilitation training pertinence and training effect.

Description

Technical Field

[0001] This invention relates to a wearable device for cardiopulmonary rehabilitation training, belonging to the field of medical device technology. Background Technology

[0002] With the aging population and the increasing incidence of chronic cardiopulmonary diseases (such as chronic obstructive pulmonary disease, coronary heart disease, heart failure, and postoperative pulmonary dysfunction), cardiopulmonary rehabilitation has become an indispensable part of clinical treatment. Its core goal is to improve patients' lung function, strengthen respiratory muscles, and enhance cardiopulmonary endurance through scientific rehabilitation training, thereby reducing disease recurrence and mortality rates and helping patients return to normal life. Breathing training, as one of the core methods of cardiopulmonary rehabilitation, can effectively improve lung ventilation efficiency and relieve respiratory fatigue through targeted breathing pattern adjustment and respiratory muscle exercises. It is a key intervention measure for home rehabilitation and postoperative recovery of patients with chronic cardiopulmonary diseases.

[0003] Currently, cardiopulmonary rehabilitation breathing training devices used in clinical and home settings are mainly divided into two categories: one is traditional mechanical breathing trainers (such as volume-type and pressure-type breathing trainers), and the other is intelligent wearable breathing training devices. For example, a breathing mask disclosed in patent application publication number CN120571124 A, published on 20250902, can realize expiratory and inspiratory training and can easily exchange air.

[0004] Among related technologies, cardiopulmonary rehabilitation training equipment suffers from problems such as a single resistance adjustment method and insufficient precision. It cannot flexibly adapt the training intensity according to the patient's cardiopulmonary rehabilitation stage, resulting in a rigid training experience. Moreover, most of them use mouth-inhalation and mouth-exhalation methods, which are difficult to match the actual physiological breathing trajectory of nasal inhalation and mouth-exhalation, thus limiting the training effect.

[0005] To overcome the above-mentioned shortcomings, this application provides a wearable device for cardiopulmonary rehabilitation training. By precisely controlling the amount of liquid inside the device, the expiratory resistance can be adapted to the training intensity needs of patients at different rehabilitation stages. At the same time, it matches the physiological breathing pattern of nasal inhalation and oral exhalation to achieve bidirectional breathing training and improve the pertinence and effectiveness of rehabilitation training. Summary of the Invention

[0006] To overcome the shortcomings of existing cardiopulmonary rehabilitation training devices, such as limited resistance adjustment methods, insufficient precision, inability to flexibly adapt training intensity according to the patient's cardiopulmonary rehabilitation stage, rigid training experience, and the prevalence of mouth-inhalation and mouth-exhalation methods which fail to match the actual physiological breathing trajectory of nasal inhalation and mouth exhalation, resulting in limited training effects, this application provides a wearable cardiopulmonary rehabilitation training device. This device aims to precisely control expiratory resistance by adjusting the amount of liquid within the device to adapt to the training intensity needs of patients at different rehabilitation stages. Simultaneously, it matches the physiological breathing pattern of nasal inhalation and mouth exhalation, achieving bidirectional breathing training and improving the targeted nature and effectiveness of rehabilitation training.

[0007] This application provides a wearable device for cardiopulmonary rehabilitation training, including a mask, a septum shell, a push plate, and a sliding tube. The mask includes a back plate, side plates, and a support plate, which together form a receiving cavity. An exhalation tube is provided on the side of the support plate opposite to the back plate, and an inhalation hole is provided above the exhalation tube. The septum shell is located in the middle area of ​​the receiving cavity, and an air inlet and a nasal inhalation box are provided on its upper part. The push plate is slidably disposed in the inner cavity of the septum shell, dividing the inner cavity into an injection cavity and an air transmission cavity. The injection cavity contains liquid, and the air inlet communicates with the bottom of the injection cavity. The nasal inhalation box communicates with the inhalation hole and the air transmission cavity. A first one-way valve is provided on the upper part of the push plate. The sliding tube is located below the septum shell and communicates with the exhalation tube. A sliding plate is slidably disposed in the inner cavity, and the sliding plate is configured to reciprocate linearly in the same direction as the push plate.

[0008] In some embodiments, the wearable device for cardiopulmonary rehabilitation training further includes a sealing plate, a first elastic element, and a first air outlet. The sealing plate is slidably disposed in the inner cavity of the sliding tube, located between the sliding plate and the exhalation tube. A cover plate is disposed below the side near the sliding plate, and an extension tube extending into the exhalation tube is disposed on the side away from the sliding plate. A second one-way valve is disposed in the extension tube. A plurality of first elastic elements are disposed between the sealing plate and the support plate and distributed around the periphery of the extension tube. The first air outlet is opened on the lower wall of the sliding tube and located between the sliding plate and the sealing plate. The cover plate is used to block the first air outlet.

[0009] In some embodiments, the wearable device for cardiopulmonary rehabilitation training further includes a rotating shaft, a first sliding ball, and a second sliding ball. The rotating shaft is rotatably disposed within the upper wall of the sliding tube, and a spiral groove is formed on its outer wall. A first strip-shaped hole is formed on the inner side of the upper wall of the sliding tube, and a second strip-shaped hole is formed on its outer side. The first sliding ball is slidably disposed within the spiral groove below the rotating shaft, and its lower end passes through the first strip-shaped hole and is connected to the sliding plate. The second sliding ball is slidably disposed within the spiral groove above the rotating shaft, and its upper end passes through the second strip-shaped hole and is connected to the push plate.

[0010] In some embodiments, the wearable device for cardiopulmonary rehabilitation training further includes a heating chamber, which is disposed below the injection chamber, between the back plate and the sliding tube, and communicates with the inner cavity of the sliding tube, and the chamber wall is provided with a heating wire.

[0011] In some embodiments, the wearable device for cardiopulmonary rehabilitation training further includes a reset assembly, which includes a first magnetic element and a second magnetic element. The first magnetic element is slidably disposed in a block shape within a sliding hole in the central region of the rotating shaft. The first magnetic element and the push plate are connected by a connecting rope on the side near the support plate. The second magnetic element is disposed on the side of the sliding hole away from the expiratory tube, and there is a magnetic attraction between the first magnetic element and the second magnetic element.

[0012] In some embodiments, the reset assembly further includes a fixed rod, a rotating plate, a drive plate, and a second vent. The fixed rod is disposed in the heating chamber and one end is fixedly connected to the back plate. The rotating plate is strip-shaped and rotatably connected to the other end of the fixed rod, with a second elastic element disposed between them. A second magnetic element is disposed at one end of the rotating plate near the sliding hole. The drive plate is slidably disposed in the sliding tube and a third elastic element is disposed between it and the fixed rod for driving the rotating plate to rotate. A third one-way valve is disposed on the plate. The second vent is opened on the lower wall of the sliding tube and is located within the movement range of the drive plate.

[0013] In some embodiments, a groove is provided on the side of the rotating plate near the drive plate, and a pressing rod is provided on the side of the drive plate near the rotating plate, with the end of the pressing rod away from the drive plate abutting against the groove.

[0014] In some embodiments, the wearable device for cardiopulmonary rehabilitation training further includes an air outlet chamber disposed within the lower wall of the sliding tube, with the first and second air outlets both communicating with the air outlet chamber, and a third air outlet disposed below the air outlet chamber.

[0015] In some embodiments, the mask further includes a frustum-shaped enclosure, the side panel including a horizontal section and a frustum-shaped section fixedly connected, the horizontal section being connected to the back panel and the support plate to form a receiving cavity; one end of the enclosure is connected to the horizontal section and the other end is connected to the frustum-shaped section, the enclosure and the side panel are connected to form a buffer cavity, a third vent is connected to the buffer cavity, and a fourth vent is provided on the enclosure.

[0016] In some embodiments, the wearable device for cardiopulmonary rehabilitation training also includes a water inlet, which is disposed on the back plate and communicates with the injection chamber, and a cap is detachably connected to the water inlet.

[0017] In this embodiment, during expiratory training, the air pressure from the patient's exhalation drives the slide plate to slide to the left, simultaneously causing the upper push plate to slide to the left. The leftward sliding of the push plate increases the air pressure within the injection chamber. To balance the pressure, the gas above the injection chamber flows to the air transmission chamber through the first one-way valve. The push plate's leftward sliding requires overcoming the pressure provided by the liquid in the left injection chamber. Thus, the patient performs expiratory training by resisting water pressure resistance during exhalation. The resistance during expiratory training can be controlled by adjusting the amount of water in the injection chamber; a larger volume of water provides greater resistance. This satisfies the individualized training intensity needs of patients at different rehabilitation stages (acute phase, recovery phase, maintenance phase), meeting the low-resistance training needs of post-operative critical care patients and elderly, frail patients, while also adapting to the intensive training needs of patients in the recovery phase. This improves the targeting and effectiveness of rehabilitation training and expands the working range of wearable cardiopulmonary rehabilitation devices.

[0018] In this embodiment, during inhalation training, the slide plate and push plate move to the right and reset. The push plate slides to the right, compressing the gas in the air delivery chamber, causing it to enter the nasal inhalation box through the air delivery tube, and finally enter the patient's nasal cavity through the inhalation hole for inhalation. Therefore, the wearable device for cardiopulmonary rehabilitation training can simultaneously match the physiological breathing pattern of "nasal inhalation and oral exhalation," completing bidirectional cyclic cardiopulmonary rehabilitation training and improving the targeting and effectiveness of rehabilitation training.

[0019] During this process, the push plate slides to the right, reducing the air pressure inside the injection chamber. To balance the pressure, outside air enters the bottom of the injection chamber through the air inlet and delivery tube, then automatically rises to the top of the injection chamber for the next inhalation. During this process, the gas is moistened by the liquid inside the injection chamber before entering the body, ensuring suitable humidity for the inhaled air. This avoids direct irritation of the nasal cavity and respiratory tract by dry, cold outside air, effectively reducing the probability of discomfort symptoms such as coughing, chest tightness, and nasal congestion, improving training comfort, and enabling patients to better perform cardiopulmonary rehabilitation training. It is especially suitable for patients with chronic cardiopulmonary diseases and sensitive respiratory tracts, increasing their willingness to train. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a wearable device for cardiopulmonary rehabilitation training according to one embodiment of this application.

[0021] Figure 2 This is a vertical cross-sectional view of a wearable device for cardiopulmonary rehabilitation training according to an embodiment of this application.

[0022] Figure 3 for Figure 2 A magnified view of region A in the middle.

[0023] Figure 4 for Figure 2 A magnified view of region B in the middle.

[0024] Figure 5 This is a vertical cross-sectional view of a wearable device for cardiopulmonary rehabilitation training according to another embodiment of this application.

[0025] Figure 6 for Figure 5 A magnified view of region C in the middle.

[0026] Figure 7 for Figure 5 A magnified view of region D in the middle.

[0027] Figure 8 This is a partial sectional view along the vertical direction of a wearable device for cardiopulmonary rehabilitation training according to an embodiment of this application.

[0028] Figure 9 for Figure 8 A cross-sectional view along the AA direction.

[0029] Figure 10 for Figure 8 A cross-sectional view along the BB direction.

[0030] Figure 11 This is a partial sectional view along the vertical direction of a wearable device for cardiopulmonary rehabilitation training according to another embodiment of this application.

[0031] Figure 12 for Figure 11 A cross-sectional view along the CC direction.

[0032] Figure 13 for Figure 12 A magnified view of region E in the middle.

[0033] Figure 14 for Figure 11 A cross-sectional view along the DD direction.

[0034] Figure 15 for Figure 11 A cross-sectional view along the EE direction.

[0035] Figure 16 This is a schematic diagram of the structure of the rotating shaft in one embodiment of this application.

[0036] Figure 17 This is a schematic diagram of the push plate in one embodiment of this application.

[0037] Figure 18 This is a schematic diagram of the rotating rod in one embodiment of this application.

[0038] Figure 19 This is a schematic diagram of the structure of the driver board in one embodiment of this application.

[0039] The labels in the attached diagram are as follows: 1-mask, 101-back plate, 1011-water inlet, 102-side plate, 1021-horizontal section, 1022-frustum section, 1023-sealing ring, 1024-air inlet, 103-enclosed plate, 1031-buffer chamber, 1032-fourth air outlet, 1033-hole cover, 2-sealing cover, 3-air delivery pipe, 4-support plate, 41-inhalation port, 5-exhalation pipe, 6-septum shell, 61-second overlapping plate, 62-sliding sealing plate, 7-nasal suction box, 71-air guide tube, 8-sliding tube, 81-first air outlet, 82-second air outlet, 83-first strip hole, 84-second strip hole, 9-slide plate, 91-first sliding ball, 10-resistance chamber, 1001 1002-Injection chamber, 11-Gas transmission chamber, 11-Push plate, 111-First one-way valve, 112-Second sliding ball, 113-First overlapping plate, 12-Sealing plate, 121-Cover plate, 122-Extension tube, 13-Second one-way valve, 14-First elastic element, 15-Rotating shaft, 151-Helical groove, 152-Sliding hole, 16-Heating chamber, 161-Heating wire, 17-Reset assembly, 171-First magnetic element, 172-Second magnetic element, 173-Connecting rope, 174-Fixing rod, 175-Rotating plate, 1751-Inclined groove, 176-Drive plate, 1761-Pressure rod, 1762-Third one-way valve, 177-Third elastic element, 18-Gas outlet chamber, 181-Third gas outlet hole. Detailed Implementation

[0040] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of this application.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0042] When using the terms “including,” “having,” and “comprising” as described herein, another component may be added unless explicitly qualifying terms such as “only,” “consisting of,” etc. are used. Unless otherwise stated, singular terms may include plural forms and should not be construed as having a quantity of one.

[0043] It should be understood that although the terms “first,” “second,” etc., may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, without departing from the scope of this application, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.

[0044] It should also be understood that, in interpreting an element, although not explicitly described, the element is interpreted as including a range of error, which should be within the acceptable deviation range of a particular value as determined by a person skilled in the art. For example, "approximately," "about," or "substantially" can mean within one or more standard deviations, without limitation herein.

[0045] Furthermore, the accompanying drawings are not drawn to a 1:1 scale, and the relative dimensions of the components are shown in the drawings only as examples and not necessarily to actual scale.

[0046] This invention provides a wearable device for cardiopulmonary rehabilitation training, such as... Figures 1 to 19 As shown, the liquid resistance adjustment structure precisely controls the expiratory resistance by adjusting the amount of liquid in the device, so as to adapt to the training intensity needs of patients at different rehabilitation stages. At the same time, it matches the physiological breathing pattern of nasal inhalation and oral exhalation, realizing bidirectional cardiopulmonary rehabilitation training and improving the pertinence and effectiveness of rehabilitation training. Figure 8 A partial sectional view along the vertical direction of a wearable device for cardiopulmonary rehabilitation training that does not include moving components such as skateboards, pushboards, and driveboards. Figure 11 A partial sectional view along the vertical direction of a wearable cardiopulmonary rehabilitation training device with a frustum-shaped section excluding the surrounding panels and side panels.

[0047] This application provides a wearable device for cardiopulmonary rehabilitation training, including a mask 1, a septum shell 6, a push plate 11, and a sliding tube 8. The mask 1 includes a back plate 101, a side plate 102, and a support plate 4, which together form a receiving cavity. The back plate 101 and the side plate 102 are fixedly connected. The back plate 101 is elliptical, and the side plate 102 is funnel-shaped. The support plate 4 is parallel to the back plate 101 and arranged vertically. An exhalation tube 5 is arranged on the side opposite to the back plate 101, and an inhalation hole 41 is arranged above the exhalation tube 5. The septum shell 6 is located in the middle area of ​​the receiving cavity, and an air inlet 1024 and a nasal inhalation box 7 are arranged on its top. The air inlet 1024 is connected to the air delivery tube 3, and the nasal inhalation box 7 is connected to the inhalation hole 41. The push plate 11 is slidably arranged in the inner cavity of the septum shell 6, dividing the inner cavity (hereinafter referred to as the resistance cavity 10) into... The septum is divided into an injection chamber 1001 and an air transmission chamber 1002. The push plate 11 is arranged vertically. The injection chamber 1001 contains liquid. The nasal inhalation box 7 is connected to the air transmission chamber 1002 through the air guide tube 71. A first one-way valve 111 is provided on the upper side of the push plate 11 to transfer the gas in the injection chamber 1001 to the air transmission chamber 1002. The other end of the air delivery tube 3 extends to the bottom of the injection chamber 1001. The sliding tube 8 is located below the middle septum shell 6 and is connected to the exhalation tube 5. A sliding plate 9 is slidably arranged in the inner cavity. The sliding plate 9 is configured to slide linearly back and forth in the same direction as the push plate 11.

[0048] In this embodiment, the wearable device for cardiopulmonary rehabilitation training also includes a wearing strap. The structure of the wearing strap is similar to that of an existing headband-style breathing mask, facilitating the patient's wearing of the wearable device on their face. After the patient sits and puts the mask on their face, they place the exhalation tube 5 in their mouth, with their nose aligned with the inhalation port 41, allowing them to inhale through their nose and exhale through their mouth. A sealing ring is provided around the periphery of the sliding plate 9 to achieve a seal with the sliding tube 8; a sealing ring is also provided around the periphery of the push plate 11 to achieve a seal with the septum shell 6. The exhalation tube 5 can be a medical flexible tube to improve user comfort.

[0049] In this embodiment of the application, during expiratory training, the internal structure of the wearable cardiopulmonary rehabilitation training device consists of... Figure 5 , Figure 6 The state shown is transformed into Figure 2 , Figure 3 As shown in the diagram. Specifically, the air pressure provided by the patient's exhalation drives the slide plate 9 to slide to the left, which in turn drives the upper push plate 11 to slide to the left simultaneously. The leftward sliding of the push plate 11 increases the air pressure in the injection chamber 1001. To balance the pressure, the gas above the injection chamber 1001 flows to the air transmission chamber 1002 through the first one-way valve 111.

[0050] During this process, the push plate 11 slides to the left, overcoming the pressure provided by the liquid in the left injection chamber 1001. Thus, the patient performs expiratory training by resisting water pressure resistance during exhalation. The resistance during expiratory training can be controlled by adjusting the amount of water in the injection chamber 1001; a larger volume of water provides greater resistance. This allows for personalized training intensity needs to be met for patients at different rehabilitation stages (acute, recovery, and maintenance phases). It can satisfy the low-resistance training needs of severely ill post-operative patients and elderly, frail patients, as well as the intensive training needs of patients in the recovery phase, improving the targeting and effectiveness of rehabilitation training and expanding the working range of wearable cardiopulmonary rehabilitation devices.

[0051] In this embodiment of the application, during inhalation training, the internal structure of the wearable cardiopulmonary rehabilitation training device consists of... Figure 2 , Figure 3 The state shown is transformed into Figure 5 , Figure 6 As shown in the diagram. Specifically, the slide plate 9 and the push plate 11 move to the right to reset. The push plate 11 slides to the right, compressing the gas in the air delivery chamber 1002, causing it to enter the nasal inhalation box 7 through the air delivery tube 71, and finally enter the patient's nasal cavity through the inhalation port 41 for inhalation. Thus, the wearable device for cardiopulmonary rehabilitation training can simultaneously match the physiological breathing pattern of "nasal inhalation and oral exhalation," completing bidirectional cyclic cardiopulmonary rehabilitation training and improving the targeting and effectiveness of rehabilitation training.

[0052] During this process, the push plate 11 slides to the right, reducing the air pressure inside the injection chamber 1001. To balance the pressure, outside air enters the bottom of the injection chamber 1001 through the air inlet 1024 and the air delivery tube 3, and then automatically rises to the top of the injection chamber 1001 to facilitate the next inhalation. Furthermore, the incoming air is moistened by the liquid inside the injection chamber 1001 before entering the body, ensuring suitable humidity. This avoids direct stimulation of the nasal cavity and respiratory tract by dry, cold outside air, reducing the probability of discomfort symptoms such as coughing, chest tightness, and nasal congestion, improving training comfort, and enabling patients to better perform cardiopulmonary rehabilitation training. It is especially suitable for patients with chronic cardiopulmonary diseases and sensitive respiratory tracts, increasing their willingness to train.

[0053] In this embodiment, cardiopulmonary rehabilitation training can enhance respiratory muscle strength and endurance, optimize breathing patterns, improve lung ventilation and gas exchange function, and enhance cardiopulmonary endurance and exercise tolerance. At the same time, it can relieve symptoms such as dyspnea and anxiety, promote sputum expectoration, reduce the risk of lung infection, improve blood circulation and cardiac function, effectively improve patients' daily activity ability and quality of life, and reduce postoperative complications and readmission rates in patients with chronic diseases.

[0054] In this embodiment, the first one-way valve 111 can be a diaphragm-type gas one-way valve or an umbrella-shaped gas one-way valve. The gas inlet of the first one-way valve 111 is equipped with a medical-grade waterproof and breathable membrane made of polyurethane, polyethylene, or polypropylene to prevent liquid in the injection chamber 1001 from overflowing into the gas transmission chamber 1002. A filter is installed on the air inlet 1024 to filter dust, impurities, and bacteria from the outside air, improving the safety of the wearable device for cardiopulmonary rehabilitation training. Two air guide tubes 71 and an air delivery tube 3 can be symmetrically arranged within the receiving cavity to improve air transmission efficiency.

[0055] In this embodiment, the wearable device for cardiopulmonary rehabilitation training has advantages such as miniaturization and lightweight design, which can better adapt to the patient's sitting posture. The face mask 1 is oval in shape, which can better fit the patient's facial contours and improve wearing comfort. Moreover, it is simple and convenient to use, without complicated adjustments, and can take into account the independent use needs of elderly, low-education, and frail patients. It is suitable for long-term home rehabilitation training scenarios and improves patient training compliance.

[0056] In some embodiments, the wearable device for cardiopulmonary rehabilitation training also includes a water inlet 1011, which is disposed on the back plate 101 and communicates with the injection chamber 1001. A cap 2 is detachably connected (by thread or snap-fit) to the water inlet 1011. The cap 2 can be opened to add or remove liquid into the injection chamber 1001 through the water inlet 1011, enabling liquid replacement and adjustment of training resistance. After adjustment, the water inlet 1011 is closed by the cap 2, which has a sealing ring around its periphery to ensure a seal between the cap 2 and the water inlet 1011, preventing leakage during cardiopulmonary rehabilitation training. The liquid in the injection chamber 1001 can be purified water or a relevant inhaled medication to assist patients in treating respiratory diseases or relieving discomfort.

[0057] In some embodiments, the wearable device for cardiopulmonary rehabilitation training further includes a sealing plate 12, a first elastic element 14, and a first air outlet 81. The sealing plate 12 is slidably disposed in the inner cavity of the sliding tube 8, located between the slide plate 9 and the exhalation tube 5 and parallel to the slide plate 9. A cover plate 121 is disposed below the side near the slide plate 9, and an extension tube 122 extending into the exhalation tube 5 is fixedly connected to the side away from the slide plate 9. A second one-way valve 13 is disposed in the extension tube 122. A plurality of first elastic elements 14 are evenly and spaced between the sealing plate 12 and the support plate 4 and distributed around the periphery of the extension tube 122. The number of first elastic elements 14 can be four. The first air outlet 81 is opened in the lower tube wall of the sliding tube 8 and is located between the slide plate 9 and the sealing plate 12. The cover plate 121 is used to block the first air outlet 81.

[0058] In this embodiment, the sealing plate 12 is annular with a vent hole in the middle, and the extension tube 122 is disposed around the vent hole; the first elastic element 14 can be a helical compression spring, and the material includes stainless steel and spring steel; a sealing ring is disposed around the outer periphery of the sealing plate 12 to achieve a seal with the sliding tube 8; a sealing ring is disposed around the outer periphery of the extension tube 122 to achieve a seal with the exhalation tube 5; the second one-way valve 13 can be a diaphragm gas one-way valve or an umbrella-shaped gas one-way valve, which allows the gas in the exhalation tube 5 to flow into the inner cavity of the sliding tube 8 while preventing the gas in the sliding tube 8 from flowing back into the exhalation tube 5 and into the patient's respiratory tract.

[0059] In this embodiment of the application, during exhalation training, such as Figure 6 As shown, under the pressure of the patient's exhaled air, the right side of the second one-way valve 13 opens under pressure, and the exhaled air enters the sliding tube 8, pushing the slide plate 9 to the left. At this time, the first elastic element 14 is in a freely extended state, and the sealing plate 12 has a large gap with the support plate 4 under the supporting force provided by the first elastic element 14, so that the cover plate 121 can block the first air outlet 81 below, ensuring that the slide plate 9 can slide stably to the left under the action of exhaled air pressure. A sealing gasket is provided on the bottom surface of the cover plate 121 to achieve the sealing of the first air outlet 81.

[0060] In this embodiment of the application, during inhalation training, such as Figure 3 As shown, when the slide plate 9 moves to the right to reset, the left side of the second one-way valve 13 is closed under pressure. The volume of the cavity between the slide plate 9 and the sealing plate 12 decreases, and the air pressure increases. Under the influence of the air pressure, the sealing plate 12 overcomes the elastic force of the first elastic element 14 and moves to the right by one distance, causing the lower cover plate 121 to move to the right synchronously. The first vent 81 opens, allowing exhaled air to flow out between the slide plate 9 and the sealing plate 12, thus avoiding interference with the next cardiopulmonary rehabilitation training. After the exhaled air flows out, the force on the sealing plate 12 and the first elastic element 14 gradually decreases until it is removed. Under the action of the elastic restoring force provided by the first elastic element 14, the sealing plate 12 and the cover plate 121 move to the left to return to their original positions. The cover plate 121 re-seals the first vent 81, thus avoiding interference with the next exhalation training.

[0061] In this embodiment, a limiting ring is provided on the outer wall of the extension tube 122, and a limiting groove is provided on the inner wall of the exhalation tube 5. The limiting ring and the limiting groove are engaged and slidably connected. The sliding distance of the sealing plate 12 and the extension tube 122 can be limited by the length of the limiting groove along the first direction, preventing the first elastic element 14 from being deformed and damaged due to exceeding the working distance of the first elastic element 14, and also preventing the extension tube 122 and the second one-way valve 13 from disengaging from the exhalation tube 5, thereby improving the working reliability of the wearable device for cardiopulmonary rehabilitation training. The first direction is the extension direction of the central axis of the sliding tube 8, and the sealing ring between the extension tube 122 and the exhalation tube 5 can be provided on the left side wall of the limiting groove.

[0062] In some embodiments, the wearable device for cardiopulmonary rehabilitation training further includes a rotating shaft 15, a first sliding ball 91, and a second sliding ball 112. The rotating shaft 15 extends along a first direction and is rotatably disposed within the upper wall of the sliding tube 8. A spiral groove 151 is provided on the outer wall. A first strip-shaped hole 83 is provided on the inner side of the upper wall of the sliding tube 8, and a second strip-shaped hole 84 is provided on the outer side. The first sliding ball 91 is slidably disposed within the spiral groove 151 below the rotating shaft 15, and its lower end passes through the first strip-shaped hole 83 and is connected to the slide plate 9. The second sliding ball 112 is slidably disposed within the spiral groove 151 above the rotating shaft 15, and its upper end passes through the second strip-shaped hole 84 and is connected to the push plate 11.

[0063] In this embodiment, a third strip-shaped hole is provided on the bottom surface of the middle partition shell 6. The third strip-shaped hole and the second strip-shaped hole 84 are correspondingly provided, and their projections along the vertical direction coincide. The upper end of the second sliding ball 112 passes through the second strip-shaped hole 84 and the third strip-shaped hole in sequence and is fixedly connected to the push plate 11. The first strip-shaped hole 83, the second strip-shaped hole 84 and the third strip-shaped hole all extend along the first direction.

[0064] In this embodiment of the application, during exhalation training, such as Figure 6 As shown, under the air pressure provided by the patient's exhalation, the slide plate 9 moves to the left, causing the first sliding ball 91, which is fixedly connected to it, to move to the left synchronously. Under the action of the spiral groove 151, the first sliding ball 91 drives the rotating shaft 15 to rotate when it moves to the left. The rotation of the rotating shaft 15 causes the second sliding ball 112 to move linearly to the left within the second strip hole 84. The second sliding ball 112 causes the push plate 11 and the slide plate 9 to move to the left synchronously, realizing that the slide plate 9 and the push plate 11 slide linearly in the same direction (to the left).

[0065] In this embodiment, a sealing ring is provided between the top wall of the sliding tube 8 and the bottom wall of the intermediate diaphragm 6. The sealing ring surrounds the outer periphery of the second strip-shaped hole 84 to prevent gas in the sliding tube 8 from leaking through the gap between the sliding tube 8 and the intermediate diaphragm 6, thus ensuring the airtightness of the sliding tube 8. Alternatively, the top wall of the sliding tube 8 and the bottom wall of the intermediate diaphragm 6 are fixedly connected, forming an integral structure, and the second strip-shaped hole 84 extends into the intermediate diaphragm 6 to form a third strip-shaped hole.

[0066] In the embodiments of this application, such as Figure 16 As shown, first overlapping plates 113 are fixedly connected to both sides of the push plate 11, and a sealing ring is provided between the periphery of the third strip hole and the bottom surface of the first overlapping plate 113 to achieve a partial seal between the two. Figure 4 , Figure 7 and Figure 13As shown, two second overlapping plates 61 are provided above the bottom wall of the middle partition shell 6. The two second overlapping plates 61 are respectively provided on the left and right sides of the middle partition shell 6. The cross-sectional shape of the second overlapping plates 61 in the vertical direction is inverted U-shaped. The bottom surface is fixedly connected to the bottom wall of the middle partition shell. The ends of the two second overlapping plates 61 that are far apart are fixedly connected to the side wall of the middle partition shell 6 extending in the vertical direction.

[0067] In the embodiments of this application, such as Figure 13 As shown, a sliding sealing plate 62 is provided between the first overlapping plate 113 and the second overlapping plates 61 on both sides. The material of the sliding sealing plate 62 includes rubber. The cross-sectional shape of the sliding sealing plate 62 in the vertical direction is also inverted U-shaped. The top wall of the sliding sealing plate 62 abuts against and slides against the bottom wall of the second overlapping plate 61. The bottom wall of the sliding sealing plate 62 abuts against and slides against the bottom wall of the middle septum 6 and the top wall of the first overlapping plate 113. The dynamic overlapping seal between the third strip-shaped ring and the push plate 11 is achieved through the periphery sealing ring of the third strip-shaped hole, the first overlapping plate 113, the second overlapping plate 61 and the sliding sealing plate 62, isolating the inner cavity (expiratory cavity) of the sliding tube 8 from the resistance cavity 10 (liquid cavity and inspiratory cavity), preventing air leakage, improving the accuracy of resistance feedback, improving the training effect and the accuracy of the patient's breathing force response, and facilitating medical staff to evaluate the training effect.

[0068] In this embodiment, along the vertical direction, the projections of the left and right sides of the second strip-shaped hole 84 at least partially overlap with the projections of the two second overlapping plates 61; along the horizontal direction, the projection widths of the two second overlapping plates 61, the first overlapping plate 113, and the sliding sealing plate 62 are all greater than the projection width of the second strip-shaped hole 84, and the projection of the second strip-shaped hole 84 is located in the middle region of the projections of the second overlapping plates 61, the first overlapping plate 113, and the sliding sealing plate 62. The horizontal direction, the vertical direction, and the first direction are all perpendicular to each other.

[0069] In this embodiment, a first limiting groove extending in a first direction is provided in the middle region of the bottom wall of the second overlapping plate 61, and a first limiting block is provided at the end of the top wall of the sliding sealing plate 62 near the push plate 11. The first limiting block and the first limiting groove are engaged and slidably connected to prevent the sliding sealing plate 62 from detaching from the second overlapping plate 61, thereby improving the reliability of the sliding seal. A second limiting groove extending in a first direction is provided in the middle region of the bottom wall of the sliding sealing plate 62, and a second limiting block is provided at the end of the top wall of the first overlapping plate 113 near the push plate 11. The second limiting block and the second limiting groove are engaged and slidably connected to prevent the sliding sealing plate 62 from detaching from the first overlapping plate 113, thereby improving the reliability of the sliding seal.

[0070] In some embodiments, the wearable device for cardiopulmonary rehabilitation training further includes a heating chamber 16, which is located below the injection chamber 1001, between the back plate 101 and the sliding tube 8, and communicates with the inner cavity of the sliding tube 8. A heating wire 161 is provided on the chamber wall. The heating wire 161 can be a metal heating wire, electrically connected to an external power source or a built-in battery via a wire. After the heating wire 161 is energized and generates heat, it can heat the liquid in the upper injection chamber 1001, thereby heating and humidifying the filtered air that has passed through the liquid. This ensures that the temperature and humidity of the inhaled air are suitable, preventing dry and cold external air from irritating the respiratory tract, improving the effectiveness of cardiopulmonary rehabilitation training and patient compliance, and reducing the probability of discomfort symptoms such as coughing, chest tightness, and nasal congestion.

[0071] In some embodiments, the wearable device for cardiopulmonary rehabilitation training further includes a reset assembly 17, which includes a first magnetic element 171 and a second magnetic element 172. The first magnetic element 171 is slidably disposed in a block shape within a sliding hole 152 in the central region of the rotating shaft 15. The first magnetic element 171 and the push plate 11 are connected to the side of the support plate 4 near the support plate 4 via a connecting rope 173. The second magnetic element 172 is disposed on the side of the sliding hole 152 opposite to the exhalation tube 5, and there is a magnetic attraction between the first magnetic element 171 and the second magnetic element 172. The support plate 4 has a receiving channel to provide space for the connecting rope 173 to move.

[0072] In some embodiments, the reset assembly 17 further includes a fixed rod 174, a rotating plate 175, a drive plate 176, and a second vent 82. The fixed rod 174 is disposed in the heating chamber 16, with one end fixedly connected to the back plate 101 and the other end extending between the heating chamber 16 and the sliding tube 8. The rotating plate 175 is strip-shaped and rotatably connected to the other end of the fixed rod 174, with a second elastic element disposed between them. A second magnetic element 172 is disposed at one end of the rotating plate 175 near the sliding hole 152. The drive plate 176 is slidably disposed in the sliding tube 8, with a third elastic element 177 disposed between it and the fixed rod 174 for driving the rotating plate 175 to rotate. A third one-way valve 1762 is disposed on the plate. The second vent 82 is opened on the lower wall of the sliding tube 8 and is located within the movement range of the drive plate 176.

[0073] In this embodiment, the first magnetic element 171 and the second magnetic element 172 can be two magnets with opposite magnetic properties, or one can be a magnet and the other an iron block, creating a magnetic attraction between them. The second elastic element can be a torsion spring, and the third elastic element 177 can be a helical compression spring, both made of stainless steel and spring steel. The third one-way valve 1762 can be a diaphragm gas one-way valve or an umbrella-shaped gas one-way valve, allowing the heating gas in the heating chamber 16 to enter the inner cavity of the sliding tube 8, while the gas in the inner cavity of the sliding tube 8 will not enter the heating chamber 16. The drive plate 176 is fixedly connected to one end of the fixed plate via the third elastic element 177, and a sealing ring is provided around the periphery of the drive plate 176 to achieve a seal with the inner wall of the sliding tube 8.

[0074] In this embodiment, during exhalation training, when the slide plate 9 and the push plate 11 move synchronously to the left, under the action of air pressure, the drive plate 176 is pushed to the left, the third one-way valve 1762 closes, and the third elastic element 177 is in a compressed state. This moves the drive plate 176 to the left of the second air outlet 82. At this time, the second air outlet 82 is located between the drive plate 176 and the slide plate 9, and the gas between the drive plate 176 and the slide plate 9 can flow out through the second air outlet 82 without obstructing the movement of the slide plate 9.

[0075] During this process, the drive plate 176 moves to the left, driving the rotating plate 175 to rotate. The second elastic element is in a compressed state, and the second magnetic element 172 on the rotating plate 175 deviates from the position of the sliding hole 152. The magnetic attraction between it and the first magnetic element 171 is greatly reduced or eliminated, and it will not hinder the leftward movement of the push plate 11, allowing the push plate 11 to move synchronously with the slide plate 9. At the same time, the first magnetic element 171 is driven to slide to the right through the connecting rope 173. The inner wall of the sliding hole 152 is provided with a magnetic shielding layer to limit the direction of magnetic force extension and prevent the magnetic force of the first magnetic element 171 from scattering.

[0076] In this embodiment, during inhalation training, the gas pressure on the slide plate 9 is removed, the pressure applied to the drive plate 176 is removed, and the drive plate 176 returns to its original position under the elastic restoring force provided by the third elastic element 177, moving to the right side of the second air outlet 82. The reset of the drive plate 176 removes the resistance force on the rotating plate 175, and the rotating plate 175 returns to its original position under the elastic restoring force provided by the second elastic element. The second magnetic element 172 on the rotating plate 175 resets to the position of the sliding hole 152, and the first magnetic element 171 is attracted to move to the left by magnetic attraction. The leftward movement of the first magnetic element 171 pulls the connecting rope 173, causing the push plate 11 to move to the right to achieve reset. Under the action of the rotating shaft 15 and the spiral groove 151, the slide plate 9 moves to the right to reset, realizing that the slide plate 9 and the push plate 11 slide in the same direction (to the right).

[0077] During this process, after the drive plate 176 moves to the right side of the second vent 82, a sealed chamber is formed between the drive plate 176 and the slide plate 9. After the slide plate 9 moves to the right with the push plate 11, the air pressure in the sealed chamber decreases. Under the action of the pressure difference on both sides of the push plate 11, the third one-way valve 1762 opens, and the outside gas enters the area between the heating chamber 16 and the drive plate 176 through the second vent 82, and then enters the sealed chamber between the drive plate 176 and the slide plate 9 through the third one-way valve 1762 to perform a pressure relief operation. The right side of the slide plate 9 performs a pressure relief operation through the first vent 81, so that the slide plate 9 will not be obstructed during the rightward reset process, improving the smoothness of sliding.

[0078] In some embodiments, such as Figure 18 and Figure 19 As shown, a sloping groove 1751 is provided on the side of the rotating plate 175 near the drive plate 176, and a pressing rod 1761 is provided on the side of the drive plate 176 near the rotating plate 175. The end of the pressing rod 1761 away from the drive plate 176 abuts against the sloping groove 1751. When the drive plate 176 moves to the left, it causes the pressing rod 1761 to move to the left and press against the sloping groove 1751, thereby driving the rotating plate 175 to rotate.

[0079] In some embodiments, the wearable device for cardiopulmonary rehabilitation training further includes an air outlet chamber 18, which is disposed in the lower wall of the sliding tube 8. The first air outlet 81 and the second air outlet 82 are both connected to the air outlet chamber 18, and a third air outlet 181 is disposed below the air outlet chamber 18.

[0080] In some embodiments, the face mask 1 further includes a frustum-shaped enclosure 103. The side panel 102 includes a horizontal section 1021 and a frustum-shaped section 1022 fixedly connected. The horizontal section 1021 is connected to the back panel 101 and the support plate 4 to form a receiving cavity. One end of the enclosure 103 is connected to the horizontal section 1021, and the other end is connected to the frustum-shaped section 1022. The enclosure 103 and the side panel 102 are connected to form a buffer cavity 1031. A third vent 181 communicates with the buffer cavity 1031. A fourth vent 1032 is provided on the enclosure 103, and a cover 1033 is provided on the fourth vent 1032 to close the fourth vent 1032 when not in use, preventing dust from entering. The buffer cavity 1031 communicates with the outside through the fourth vent 1032. A filter screen is also provided inside the fourth vent 1032.

[0081] In this embodiment, the exhaust chamber 18 is located below the heating chamber 16. After the exhaled air enters the exhaust chamber 18, it absorbs some of the heat emitted by the heating wire 161 and then enters the buffer chamber 1031, causing the temperature of the gas in the buffer chamber 1031 to rise, so as to balance the temperature of the heated inhaled air. This reduces the temperature difference between the gas in the buffer chamber 1031 and the patient's nasal inhaled air, thereby reducing the probability of water vapor being generated on the inner wall of the mask 1 due to the temperature difference. This reduces the inconvenience of use (obstructing vision, leakage) and bacterial growth caused by water vapor condensation, greatly improving the comfort and hygiene of wearing the mask 1, reducing the risk of respiratory infection, and facilitating long-term training for patients.

[0082] In some embodiments, the wearable device for cardiopulmonary rehabilitation training can be adjusted for resistance before use. Patients can perform several cardiopulmonary rehabilitation exercises to feel the expiratory resistance. If the resistance is too high, the volume of water in the infusion chamber can be reduced; if the resistance is too low, the volume of water in the infusion chamber can be increased until the resistance level is adjusted to a level that is comfortable for the patient and meets the requirements of rehabilitation training. After adjustment, training should continue according to the nasal inhalation and oral exhalation cycle. The training duration and breathing rate are set according to the patient's rehabilitation needs (as prescribed by the doctor or preset parameters of the device). If discomfort such as chest tightness or dizziness occurs during training, training can be stopped immediately, the resistance adjusted, or the patient can rest before continuing.

[0083] In this embodiment, after the patient stops cardiopulmonary rehabilitation training, the exhalation tube 5 is slowly removed from the mouth, followed by the removal of the face mask 1. The wearable cardiopulmonary rehabilitation device is then cleaned by emptying the remaining liquid from the infusion chamber 1001, rinsing the infusion chamber 1001, exhalation tube 5, face mask 1, and other components with clean water, drying them, and placing them in a dry, ventilated place to air dry to prevent bacterial growth. During use, the wearable cardiopulmonary rehabilitation device requires regular checks of its sealing performance, heating and humidification functions, and transmission structure. If any component damage, air leakage, or jamming occurs, use should be stopped and repaired promptly to avoid affecting the training effect or causing safety hazards.

[0084] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0085] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A wearable device for cardiopulmonary rehabilitation training, characterized in that, include: The mask (1) includes a back plate (101), a side plate (102) and a support plate (4), which together form a cavity. An exhalation tube (5) is provided on the side of the support plate (4) away from the back plate (101), and an inhalation hole (41) is provided above the exhalation tube (5). The middle septum (6) is located in the middle area of ​​the receiving cavity, and an air inlet (1024) and a nasal suction box (7) are provided on the top. Push plate (11) is slidably disposed in the inner cavity of the middle partition shell (6), dividing the inner cavity into a liquid injection chamber (1001) and an air transmission chamber (1002). Liquid is disposed in the liquid injection chamber (1001), and the air inlet (1024) is connected to the bottom of the liquid injection chamber (1001). The nasal suction box (7) is connected to the suction hole (41) and the air transmission chamber (1002). A first one-way valve (111) is disposed on the upper side of the push plate (11). The sliding tube (8) is located below the diaphragm (6) and is connected to the exhalation tube (5). The inner cavity is equipped with a sliding plate (9), which is configured to slide back and forth in a straight line in the same direction as the push plate (11).

2. The wearable device for cardiopulmonary rehabilitation training according to claim 1, characterized in that, Also includes: The sealing plate (12) is slidably disposed in the inner cavity of the sliding tube (8), located between the slide plate (9) and the exhalation tube (5). A cover plate (121) is provided on the side closer to the slide plate (9), and an extension tube (122) extending into the exhalation tube (5) is provided on the side away from the slide plate (9). A second one-way valve (13) is provided in the extension tube (122). Multiple first elastic elements (14) are disposed between the sealing plate (12) and the support plate (4) and distributed around the periphery of the extension tube (122); The first vent (81) is located on the lower wall of the sliding tube (8) and between the slide plate (9) and the sealing plate (12). The cover plate (121) is used to block the first vent (81).

3. The wearable device for cardiopulmonary rehabilitation training according to claim 1, characterized in that, Also includes: The rotating shaft (15) is rotatably set inside the upper wall of the sliding tube (8), and a spiral groove (151) is opened on the outer wall. A first strip hole (83) is opened on the inner side of the upper wall of the sliding tube (8), and a second strip hole (84) is opened on the outer side. The first sliding ball (91) is slidably disposed in the spiral groove (151) below the rotating shaft (15), and its lower end passes through the first strip hole (83) and is connected to the slide plate (9); The second sliding ball (112) is slidably disposed in the spiral groove (151) above the rotating shaft (15), and its upper end passes through the second strip hole (84) and is connected to the push plate (11).

4. The wearable device for cardiopulmonary rehabilitation training according to claim 2, characterized in that, It also includes a heating chamber (16), which is located below the injection chamber (1001), between the back plate (101) and the sliding tube (8), and communicates with the inner cavity of the sliding tube (8). The chamber wall is provided with a heating wire (161).

5. The wearable device for cardiopulmonary rehabilitation training according to claim 4, characterized in that, It also includes a reset assembly (17), which includes a first magnetic element (171) and a second magnetic element (172). The first magnetic element (171) is slidably disposed in the sliding hole (152) in the central region of the rotating shaft (15). The first magnetic element (171) and the push plate (11) are connected by a connecting rope (173) on the side near the support plate (4). The second magnetic element (172) is disposed on the side of the sliding hole (152) away from the exhalation tube (5), and there is a magnetic attraction between the first magnetic element (171) and the second magnetic element (172).

6. The wearable device for cardiopulmonary rehabilitation training according to claim 5, characterized in that, The reset assembly (17) also includes: A fixing rod (174) is set inside the heating chamber (16), and one end is fixedly connected to the back plate (101); The rotating plate (175) is strip-shaped and rotatably connected to the other end of the fixed rod (174), and a second elastic element is provided between the two. The second magnetic element (172) is provided at one end of the rotating plate (175) near the sliding hole (152). The drive plate (176) is slidably disposed in the sliding tube (8), and a third elastic element (177) is provided between it and the fixed rod (174) for driving the rotating plate (175) to rotate. A third one-way valve (1762) is provided on the plate. The second vent (82) is located on the lower wall of the sliding tube (8) within the moving range of the drive plate (176).

7. The wearable device for cardiopulmonary rehabilitation training according to claim 6, characterized in that, A sloping groove (1751) is provided on the side of the rotating plate (175) near the drive plate (176), and a pressing rod (1761) is provided on the side of the drive plate (176) near the rotating plate (175). The end of the pressing rod (1761) away from the drive plate (176) abuts against the sloping groove (1751).

8. The wearable device for cardiopulmonary rehabilitation training according to claim 7, characterized in that, It also includes an air outlet chamber (18), which is located in the lower wall of the sliding tube (8). The first air outlet (81) and the second air outlet (82) are both connected to the air outlet chamber (18), and a third air outlet (181) is provided below the air outlet chamber (18).

9. The wearable device for cardiopulmonary rehabilitation training according to claim 8, characterized in that, The mask (1) also includes a frustum-shaped enclosure (103), and the side panel (102) includes a horizontal section (1021) and a frustum-shaped section (1022) that are fixedly connected. The horizontal section (1021) is connected to the back panel (101) and the support plate (4) to form a receiving cavity. One end of the enclosure (103) is connected to the horizontal section (1021), and the other end is connected to the frustum section (1022). The enclosure (103) and the side plate (102) are connected to form a buffer cavity (1031). The third vent (181) is connected to the buffer cavity (1031), and a fourth vent (1032) is provided on the enclosure (103).

10. The wearable device for cardiopulmonary rehabilitation training according to claim 1, characterized in that, It also includes a water inlet (1011), which is located on the back plate (101) and connected to the injection chamber (1001). A cap (2) is detachably connected to the water inlet (1011).

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