A breathing aid for cardiac surgery rehabilitation

Abstract

The utility model discloses a kind of heart surgery rehabilitation breathing auxiliary devices, it is related to medical rehabilitation equipment technical field, including main frame body, tool box is installed in the both sides of main frame body bottom, the bottom of main frame body is installed from below to above sequentially connected filter mechanism, compressed air mechanism, humidification heating mechanism and breathing mechanism;Compressed air mechanism includes adjusting assembly and air outlet assembly, adjusting assembly is connected with the top of filter mechanism, air outlet assembly is connected with humidification heating mechanism;Humidification heating mechanism includes heating assembly and humidification assembly, the top of humidification assembly is connected with the bottom of breathing mechanism.The utility model is preliminarily intercepted by filter screen large particle impurities, also through activated carbon filter adsorption harmful gas and peculiar smell, simultaneously through ultraviolet lamp tube sterilization disinfection, provide clean air for patient, beneficial to patient recovery, prolong the overall service life of device, ensure that breathing auxiliary device stable operation.

Description

Technical Field

[0001] This utility model relates to the field of medical rehabilitation equipment technology, and in particular to a respiratory assist device for cardiac surgery rehabilitation. Background Technology

[0002] Cardiac surgery is an important means of treating heart disease and can significantly improve patients' conditions. However, the postoperative rehabilitation process is crucial, and the recovery of respiratory function is a key aspect. In the current medical field, the development of respiratory assist devices for cardiac surgery rehabilitation is mainly reflected in the following aspects:

[0003] On the one hand, cardiac surgery causes significant trauma to the patient's body, and postoperative respiratory function is often affected to varying degrees, potentially leading to respiratory muscle weakness, insufficient ventilation, and decreased lung function. This not only increases the risk of complications such as lung infection and respiratory failure but also severely impacts the patient's recovery process and quality of life. However, existing respiratory assist devices have limitations in function and performance, failing to fully meet the specific needs of cardiac surgery rehabilitation patients. Furthermore, advancements in materials science have provided higher-quality materials for respiratory assist devices, such as high-strength, corrosion-resistant, and biocompatible materials used in the manufacture of the device's casing, tubing, and other components, improving the device's durability and safety. On the other hand, the rapid development of electronic and sensor technologies enables respiratory assist devices to achieve more precise parameter control and real-time monitoring. In addition, modern medical concepts emphasize patient-centered personalized treatment and rapid rehabilitation. In cardiac surgery rehabilitation, respiratory assist devices need to adapt to different patients' conditions and rehabilitation stages, providing flexible and diverse treatment options.

[0004] Therefore, the purpose of this utility model is to provide a respiratory assist device for cardiac surgical rehabilitation to overcome the shortcomings of the existing technology. Utility Model Content

[0005] The purpose of this invention is to provide a respiratory assist device for cardiac surgery rehabilitation, which solves the problem of low efficiency of respiratory assist devices.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] This utility model discloses a respiratory assist device for cardiac surgery rehabilitation, comprising a main frame, tool boxes installed on both sides of the bottom of the main frame, and a filter mechanism, a compressed air mechanism, a humidification and heating mechanism and a breathing mechanism connected sequentially from bottom to top at the bottom of the main frame;

[0008] The compressed air mechanism includes an adjustment component and an air outlet component. The adjustment component is connected to the top of the filter mechanism, and the air outlet component is connected to the humidification heating mechanism.

[0009] The humidification heating mechanism includes a heating component and a humidification component;

[0010] The heating assembly includes a humidification tank installed on the upper part of the compressed air mechanism. The humidification tank is connected to the air outlet assembly. A heating element is installed on one side of the bottom of the humidification tank. A heat-conducting pipe is installed on one side of the heating element. A heat-conducting ring is fixedly connected to one end of the heat-conducting pipe. The heat-conducting ring is fastened to the outer wall of the humidification tank.

[0011] The humidification component includes an ultrasonic atomizing plate installed at the top inside the humidification tank. An exhaust fan is connected above the ultrasonic atomizing plate, and an air outlet is installed on the output end of the exhaust fan. The top of the air outlet is connected to the bottom of the breathing mechanism.

[0012] Furthermore, a handrail is installed on one side of the upper part of the main frame.

[0013] Furthermore, the bottom of the main frame is equipped with multiple casters.

[0014] Furthermore, the filtration mechanism includes a suction fan connected to the bottom of the main frame. The air outlet of the suction fan is fixed and penetrates the bottom of the base plate. A filter box is installed on the upper part of the base plate and connected to the main frame. A filter screen is installed at the bottom of the filter box and is positioned above the air outlet of the suction fan. An activated carbon filter is installed in the middle of the filter box, and two symmetrically arranged ultraviolet lamps are provided above the activated carbon filter.

[0015] Furthermore, the regulating component in the compressed air mechanism includes an air compressor, one end of which is connected to the top of the filter box via an air inlet pipe. The air compressor is equipped with a regulating switch and multiple regulating buttons for controlling the air compressor.

[0016] Furthermore, the air outlet assembly in the compressed air mechanism includes an air outlet pipe connected to both sides of the air compressor. A valve is installed on the end of the two air outlet pipes closest to the air compressor. A heating bladder is sleeved on the outer wall of the air outlet pipe. The end of the air outlet pipe furthest from the air compressor is connected to the humidification tank.

[0017] Furthermore, two connecting columns are installed on the outer wall of the air compressor, and a display screen is fixedly connected to the other end of each of the two connecting columns. Speakers are installed on both sides of the display screen.

[0018] Furthermore, the breathing mechanism includes an air tank installed on the top of the air outlet, an air outlet pipe II installed on the top of the air tank, the top of the air outlet pipe II being sealed, a valve II installed on the air outlet pipe II, the top of the air outlet pipe II being connected to a breathing hose, a pressure sensor installed on the outer wall of the breathing hose, a hose retainer installed on the top of the air outlet pipe II, the body of the breathing hose being snapped onto the top of the hose retainer, and a breathing mask being fixedly connected to the other end of the breathing hose.

[0019] Furthermore, the body of the breathing hose is engaged in a slot opened at the top of the hose retainer.

[0020] Furthermore, the air outlet is designed with an opening that is wider at the top and narrower at the bottom.

[0021] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0022] 1. This utility model utilizes a filtration mechanism at the bottom of the main frame, including a filter screen, an activated carbon filter, and an ultraviolet lamp, to perform multiple filtration and purification of inhaled air. First, the filter screen initially intercepts large particulate impurities, then the activated carbon filter adsorbs harmful gases and odors, and at the same time, the ultraviolet lamp sterilizes and disinfects, providing clean air for patients. This not only reduces the risk of respiratory infections caused by inhaling unclean air, which is beneficial to patient recovery, but also avoids damage to subsequent device components caused by impurities, extends the overall service life of the device, and ensures the stable operation of the respiratory assist device.

[0023] 2. By setting up adjustment components and air outlet components, medical staff can control the adjustment switch through adjustment buttons to precisely adjust the working parameters of the air compressor, thereby achieving precise control of the degree of air compression. The gas flow rate is controlled by the valve on the air outlet pipe, and the heating bag preheats the compressed air. This allows the gas pressure, flow rate, and temperature delivered to the patient to be adjusted in a personalized manner according to the patient's specific condition and physical status, improving the accuracy and comfort of respiratory assistance and meeting the diverse needs of different patients at different stages of rehabilitation.

[0024] 3. This utility model utilizes a humidification and heating mechanism. The heating component heats the water in the humidification tank using a heating element, heat-conducting pipe, and heat-conducting ring. The humidification component converts the water into water mist using an ultrasonic atomizing plate. The water mist is then mixed with air by an exhaust fan and delivered through an air outlet that is wider at the top and narrower at the bottom. The gas supply is stabilized by the air tank of the breathing mechanism, and the pressure sensor monitors the gas supply in real time. This ensures that the hose retainer guarantees a stable gas delivery, providing patients with air of suitable temperature and humidity. This effectively prevents the dryness of the patient's respiratory mucosa, reduces the risk of respiratory complications, and ensures a stable gas output, providing reliable support for the patient's respiratory assisted therapy and promoting the recovery of the patient's respiratory function. Attached Figure Description

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] Figure 1 This is a schematic diagram of the right front side of the respiratory assist device for cardiac surgical rehabilitation according to this utility model;

[0027] Figure 2 This is a schematic diagram of the left rear side of the respiratory assist device for cardiac surgical rehabilitation according to this utility model;

[0028] Figure 3 This is a schematic diagram of the filtration mechanism;

[0029] Figure 4 This is a schematic diagram of a compressed air mechanism;

[0030] Figure 5 This is a schematic diagram of the humidification heating mechanism;

[0031] Figure 6 This is a schematic diagram of a breathing mechanism;

[0032] Figure 7 Diagram showing the installation of the display screen;

[0033] Figure 8 The diagram shows the installation of the mobile platform.

[0034] Explanation of reference numerals in the attached drawings: 1. Main frame; 2. Handrail; 3. Casters; 4. Tool box; 5. Filtration mechanism; 501. Suction fan; 502. Base plate; 503. Filter box; 504. Filter screen; 505. Activated carbon filter; 506. Ultraviolet lamp; 507. Air inlet pipe; 6. Compressed air mechanism; 601. Air compressor; 602. Adjustment switch; 603. Adjustment button; 604. Air outlet pipe one; 605. Valve one; 606. Heating chamber; 7. Humidification and heating mechanism; 701. Humidification tank; 702. Heating element; 703. Heat conduction pipe; 704. Heat conduction ring; 705. Ultrasonic atomizing plate; 706. Exhaust fan; 707. Air outlet; 8. Breathing mechanism; 801. Air storage tank; 802. Second air outlet pipe; 803. Second valve; 804. Breathing hose; 805. Pressure sensor; 806. Hose retainer; 807. Breathing mask; 9. Connecting column; 10. Display screen; 11. Speaker. Detailed Implementation

[0035] like Figure 1-8 As shown, a respiratory assist device for cardiac surgical rehabilitation includes a main frame 1, tool boxes 4 are installed on both sides of the bottom of the main frame 1, a handrail 2 is installed on one side of the upper part of the main frame 1, and multiple casters 3 are installed at the bottom of the main frame 1.

[0036] The bottom of the main frame 1 is equipped with a filter mechanism 5, a compressed air mechanism 6, a humidification and heating mechanism 7, and a breathing mechanism 8, which are connected sequentially from bottom to top. The sequential connection of these mechanisms results in a compact and rationally laid-out structure. The tight connections between the mechanisms ensure a clear and smooth gas transmission path within the device, reducing the possibility of gas leakage and energy loss. This also facilitates installation, maintenance, and repair, improving the overall performance and reliability of the device.

[0037] The filtration mechanism 5 includes a suction fan 501 connected to the bottom of the main frame 1. The air outlet of the suction fan 501 is fixed and passes through the bottom of the base plate 502. A filter box 503 is installed on the upper part of the base plate 502. The filter box 503 is connected to the main frame 1. A filter screen 504 is installed at the bottom of the filter box 503. The filter screen 504 is placed above the air outlet of the suction fan 501. An activated carbon filter 505 is installed in the middle of the filter box 503. Two symmetrically arranged ultraviolet lamps 506 are provided above the activated carbon filter 505.

[0038] Specifically, the function of the suction fan 501 is to provide suction to draw outside air into the device. The air is then filtered through the filter box 503. The filter screen 504 inside the filter box 503 is used to initially intercept larger particulate impurities, such as dust and hair, to prevent these large particles from entering subsequent device components and causing damage. It also reduces the burden on subsequent filtration stages. The activated carbon filter 505 utilizes the adsorption properties of activated carbon to effectively adsorb harmful gases in the air, such as formaldehyde and sulfur dioxide, as well as odors, further purifying the air and improving air quality. The ultraviolet lamp 506 emits ultraviolet light to sterilize and disinfect the air, destroying the DNA structure of bacteria and viruses and rendering them inactive. This ensures that the air entering the device is sterile and safe, reducing the risk of respiratory infections caused by patients inhaling unclean air.

[0039] The humidification heating mechanism 7 includes a heating component and a humidification component, which are used to heat and humidify water.

[0040] The heating assembly includes a humidification tank 701 installed on the upper part of the compressed air mechanism 6. The humidification tank 701 is connected to the air outlet assembly. A heating element 702 is installed on one side of the bottom of the humidification tank 701. A heat-conducting pipe 703 is installed on one side of the heating element 702. A heat-conducting ring 704 is fixedly connected to one end of the heat-conducting pipe 703. The heat-conducting ring 704 is fastened to the outer wall of the humidification tank 701.

[0041] The humidification tank 701 in the humidification heating mechanism 7 is a container for storing water, providing a water source for air humidification and heating. The heating element 702 can convert electrical energy into heat energy, and the heat generated by the heating element 702 is efficiently transferred out through the heat pipe 703. Then, through the heat conduction ring 704, the heat can be evenly transferred to the humidification tank 701, thereby heating the water in the humidification tank 701 to a suitable temperature range, providing conditions for subsequent humidification and air heating.

[0042] The humidification component includes an ultrasonic atomizing plate 705 installed at the top inside the humidification tank 701. An exhaust fan 706 is connected above the ultrasonic atomizing plate 705. An air outlet 707 is installed on the output end of the exhaust fan 706. The air outlet 707 has an opening that is wider at the top and narrower at the bottom. The top of the air outlet 707 is connected to the bottom of the breathing mechanism 8.

[0043] The ultrasonic atomizing plate 705 uses the high-frequency oscillation principle of ultrasound to convert the water in the humidification tank 701 into tiny water mists. These water mists can mix thoroughly with the air, increasing the humidity of the air. Then, the exhaust fan 706 generates suction to draw out the mixture of water mist and air and send it out through the air outlet 707. The air outlet 707 is designed with a larger opening at the top and a smaller opening at the bottom, which helps the water mist and air to mix more evenly and improves the gas delivery efficiency, allowing the humidified air to enter the subsequent breathing mechanism 8 more smoothly.

[0044] The compressed air mechanism 6 includes an adjustment component and an air outlet component, which are used to compress air. The adjustment component is connected to the top of the filter mechanism 5, and the air outlet component is connected to the humidification heating mechanism 7.

[0045] The regulating component in the compressed air mechanism 6 includes an air compressor 601. One end of the air compressor 601 is connected to the top of the filter box 503 through an air inlet pipe 507. The air compressor 601 is equipped with an regulating switch 602 and multiple regulating buttons 603 for controlling the air compressor 601.

[0046] Filtered air is delivered to air compressor 601 through intake pipe 507. Air compressor 601 compresses the air, increasing its pressure for subsequent delivery and use. The air pressure is controlled by regulating switch 602 to control the operation of air compressor 601, such as starting, stopping, and adjusting working mode. Medical staff can operate regulating button 603 to precisely adjust the working parameters of air compressor 601, such as compression ratio and output pressure, according to the patient's actual condition and breathing needs, to achieve precise control of the degree of air compression and provide the patient with air at the appropriate pressure.

[0047] The air outlet assembly in the compressed air mechanism 6 includes an air outlet pipe 604 connected to both sides of the air compressor 601. A valve 605 is installed on the end of the two air outlet pipes 604 near the air compressor 601. A heating bladder 606 is sleeved on the outer wall of the air outlet pipe 604. The end of the air outlet pipe 604 away from the air compressor 601 is connected to the humidification tank 701.

[0048] The two outlet pipes 604 allow for a more even distribution of compressed air and increase the device's versatility. The valve 605 on the outlet pipe 604 controls the gas flow rate. Medical staff can flexibly adjust the opening of the valve 605 according to the patient's breathing condition to precisely control the air flow delivered to the patient and meet their different breathing needs. The heating bladder 606 on the outer wall of the outlet pipe 604 provides preliminary heating to the compressed air, making the air temperature closer to human body temperature, preventing excessively cold air from irritating the patient's respiratory tract, and improving the patient's comfort when using the device.

[0049] Two connecting columns 9 are installed on the outer wall of the air compressor 601. The other end of each of the two connecting columns 9 is fixedly connected to a display screen 10. Speakers 11 are installed on both sides of the display screen 10.

[0050] The display screen 10 is used to display various operating parameters of the device in real time, such as filtration status, air compression parameters, humidification and heating levels, and breathing gas pressure, allowing medical staff to easily check the device's working status and understand the patient's respiratory support situation. In addition, if the device malfunctions, such as a parameter exceeding the normal range or a component failure, the speaker 11 will issue an alarm to ensure patient safety, enable medical staff to promptly identify and address problems, and safeguard the normal operation of the device and the patient's health.

[0051] The breathing mechanism 8 includes an air tank 801 installed on the top of the air outlet 707. An air outlet pipe 802 is installed on the top of the air tank 801. The top of the air outlet pipe 802 is sealed. A valve 803 is installed on the air outlet pipe 802. The top of the air outlet pipe 802 is connected to a breathing hose 804. A pressure sensor 805 is installed on the outer wall of the breathing hose 804. A hose retainer 806 is installed on the top of the air outlet pipe 802. The body of the breathing hose 804 is snapped into a slot opened on the top of the hose retainer 806. A breathing mask 807 is fixedly connected to the other end of the breathing hose 804.

[0052] The gas storage tank 801 stores humidified and heated air to ensure a stable gas supply. Gas from the storage tank 801 is discharged to the patient via the outlet pipe 802. The flow rate of the output gas is further regulated by valve 80 to more precisely control the amount of air inhaled by the patient. A pressure sensor 805 monitors the gas pressure in real time; any abnormal pressure, such as being too high or too low, can be promptly reported to medical staff for appropriate measures to ensure patient safety. The hose retainer 806 effectively prevents hose swaying and tangling, ensuring stable gas delivery. The patient, by wearing a breathing mask 807, inhales filtered, compressed, humidified, and heated air, achieving respiratory assistance.

[0053] The operation process of this utility model is as follows:

[0054] During operation, the suction fan 501 is activated to draw in outside air. After entering the filter box 503, the air passes through the filter screen 504 at the bottom of the filter box 503, which initially intercepts larger particulate impurities. Then, the air enters the suction fan 501 and passes through the activated carbon filter 505 in the middle, which adsorbs harmful gases and odors from the air. Finally, the air is sterilized and disinfected by ultraviolet lamps 506 on both sides of the upper part of the suction fan 501. The air, after multiple filtration and purification processes, is cleaner. The purified air then enters the air compressor 601 through the air intake pipe 507. The air compressor 601 has an external adjustment switch 602 and multiple adjustment buttons 603 forming an adjustment assembly. Medical staff can control the adjustment switch 602 via the adjustment buttons 603 to precisely adjust the operating parameters of the air compressor 601 according to the patient's actual needs, thereby controlling the degree of air compression. The compressed air is output through the outlet pipe 604, and the gas flow rate can be controlled by the valve 605 on the outlet pipe 604. Finally, the compressed air is preheated by the heating element 606 on the outer wall to make the gas temperature more suitable. The air, after initial processing, enters the humidification tank 701 and undergoes preliminary mixing with the water inside. The water is heated by a heating element, thus heating the air. The water in the humidification tank 701 is then converted into fine water mist by an ultrasonic atomizing plate 705. This water mist and air are extracted by a fan. During this process, the water mist and air are more thoroughly mixed and then discharged through an air outlet 707 with a wider opening at the top and a narrower opening at the bottom. This helps to mix the water mist and air more evenly and improves gas delivery efficiency. The mixed, humidified, and heated air then enters the breathing mechanism 8. The gas storage tank 801 temporarily stores gas to ensure a stable gas supply. The gas in the storage tank 801 is discharged through the second gas outlet pipe 802. The second valve 803 can further regulate the flow rate of the output gas. The second gas outlet pipe 802 is connected to the breathing mask 807 through the breathing hose 804, so that the pressure sensor 805 on the outer wall can monitor the gas pressure in real time. Once the pressure is abnormal, it can be promptly reported to the medical staff. Finally, the patient wears the breathing mask 807 and can inhale suitable air that has been filtered, compressed, humidified and heated to achieve respiratory assistance function.

[0055] Finally, through the coordinated action of all mechanisms in the entire device, from air intake to processing and delivery to the patient, every step is carefully designed to provide safe, comfortable, and effective respiratory support for cardiac surgery rehabilitation patients, helping them to better restore respiratory function and promote physical recovery.

[0056] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A respiratory assist device for cardiac surgical rehabilitation, characterized in that: Includes a main frame (1), on both sides of the bottom of the main frame (1) are tool boxes (4), and the bottom of the main frame (1) is equipped with a filter mechanism (5), a compressed air mechanism (6), a humidification heating mechanism (7) and a breathing mechanism (8) connected in sequence from bottom to top; The compressed air mechanism (6) includes an adjustment component and an air outlet component. The adjustment component is connected to the top of the filter mechanism (5), and the air outlet component is connected to the humidification heating mechanism (7). The humidification heating mechanism (7) includes a heating component and a humidification component; The heating assembly includes a humidification tank (701) installed on the upper part of the compressed air mechanism (6). The humidification tank (701) is connected to the air outlet assembly. A heating element (702) is installed on one side of the bottom of the humidification tank (701). A heat-conducting pipe (703) is installed on one side of the heating element (702). A heat-conducting ring (704) is fixedly connected to one end of the heat-conducting pipe (703). The heat-conducting ring (704) is fastened to the outer wall of the humidification tank (701). The humidification assembly includes an ultrasonic atomizing plate (705) installed at the top inside the humidification tank (701). An exhaust fan (706) is connected above the ultrasonic atomizing plate (705). An air outlet (707) is installed on the output end of the exhaust fan (706). The top of the air outlet (707) is connected to the bottom of the breathing mechanism (8).

2. The respiratory assist device for cardiac surgical rehabilitation according to claim 1, characterized in that: A handrail (2) is installed on one side of the upper part of the main frame (1).

3. The respiratory assist device for cardiac surgical rehabilitation according to claim 1, characterized in that: The bottom of the main frame (1) is equipped with multiple casters (3).

4. The respiratory assist device for cardiac surgical rehabilitation according to claim 1, characterized in that: The filtration mechanism (5) includes a suction fan (501) connected to the bottom of the main frame (1). The air outlet of the suction fan (501) is fixed and penetrates the bottom of the base plate (502). A filter box (503) is installed on the upper part of the base plate (502). The filter box (503) is connected to the main frame (1). A filter screen (504) is installed at the bottom of the filter box (503). The filter screen (504) is placed above the air outlet of the suction fan (501). An activated carbon filter (505) is installed in the middle of the filter box (503). Two symmetrically arranged ultraviolet lamps (506) are provided above the activated carbon filter (505).

5. The respiratory assist device for cardiac surgery rehabilitation according to claim 4, characterized in that: The regulating component in the compressed air mechanism (6) includes an air compressor (601). One end of the air compressor (601) is connected to the top of the filter box (503) through an air inlet pipe (507). The air compressor (601) is equipped with a regulating switch (602) and multiple regulating buttons (603) for controlling the air compressor (601).

6. The respiratory assist device for cardiac surgery rehabilitation according to claim 5, characterized in that: The compressed air mechanism (6) includes an air outlet assembly consisting of two air outlet pipes (604) connected to both sides of the air compressor (601). A valve (605) is installed on the end of each air outlet pipe (604) near the air compressor (601). A heating bladder (606) is fitted on the outer wall of each air outlet pipe (604). The end of each air outlet pipe (604) away from the air compressor (601) is connected to the humidification tank (701).

7. The respiratory assist device for cardiac surgery rehabilitation according to claim 6, characterized in that: Two connecting columns (9) are installed on the outer wall of the air compressor (601). The other end of each of the two connecting columns (9) is fixedly connected to a display screen (10). Speakers (11) are installed on both sides of the display screen (10).

8. The respiratory assist device for cardiac surgical rehabilitation according to claim 1, characterized in that: The breathing mechanism (8) includes an air tank (801) installed on the top of the air outlet (707), an air outlet pipe (802) installed on the top of the air tank (801), the top of the air outlet pipe (802) is sealed, a valve (803) is installed on the air outlet pipe (802), the top of the air outlet pipe (802) is connected to a breathing hose (804), a pressure sensor (805) is installed on the outer wall of the breathing hose (804), a hose retainer (806) is installed on the top of the air outlet pipe (802), the body of the breathing hose (804) is snapped onto the top of the hose retainer (806), and a breathing mask (807) is fixedly connected to the other end of the breathing hose (804).

9. The respiratory assist device for cardiac surgical rehabilitation according to claim 8, characterized in that: The body of the breathing hose (804) is engaged in a slot opened at the top of the hose retainer (806).

10. The respiratory assist device for cardiac surgical rehabilitation according to claim 1, characterized in that: The air outlet (707) is designed with a larger opening at the top and a smaller opening at the bottom.

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