Breathing device for chronic obstructive pulmonary disease rehabilitation training

Abstract

The utility model discloses a breathing device for chronic obstructive pulmonary disease rehabilitation training, and belongs to the technical field of rehabilitation training equipment. The air purifier comprises an air nozzle, an air cylinder with a built-in filter element and a cylinder cover with an open hole, and is characterized by further comprising an active air pressure adjusting assembly and a control assembly, the active air pressure adjusting assembly comprises an adjusting cylinder body, a forward and reverse rotation motor, a support and fan blades. The air tap, the air cylinder, the adjusting cylinder body and the cylinder cover are sequentially connected in a sealed mode. The breathing training device is compact in structure and easy to carry, the resistance of breathing training is dynamically adjusted in real time through the electrically-controlled active air pressure adjusting assembly, a user can find a more comfortable resistance gear more quickly during training, the internal pressure value of the device is monitored in real time through a built-in pressure sensor, and the breathing training effect is improved. Once the respiratory training exceeds the bearing pressure of the respiratory tract, the active air pressure adjusting assembly is immediately used for pressure reduction adjustment, so that the rehabilitation training is safer.

Description

Technical Field

[0001] The utility model relates to a breathing device used for rehabilitation training of chronic obstructive pulmonary disease, belonging to the technical field of rehabilitation training equipment. Background Art

[0002] The breathing device used for COPD rehabilitation training is an auxiliary treatment tool specially designed for patients with chronic obstructive pulmonary disease. It can help patients perform effective breathing training and improve respiratory function.

[0003] Rehabilitation training breathing devices generally allow for both inhalation and exhalation training. Inhalation training: Inhale slowly through the breathing device, trying to breathe deeply and long. After reaching maximum inhalation capacity, hold the breath for a moment, then exhale slowly. Exhalation training: Similarly, exhale slowly through the breathing device, trying to expel as much air as possible from the lungs. After reaching maximum expiratory capacity, hold the breath for a moment, then inhale slowly. Each training session generally lasts 10-15 minutes, performed 2-3 times a day. As the patient's respiratory function improves, the duration and frequency of training sessions can be gradually increased.

[0004] There are many types of existing rehabilitation training breathing devices, and the following three are common: (1) Three-ball breathing trainer. It consists of three transparent plastic tubes placed side by side and three built-in colored balls. It works by the patient blowing and inhaling through a straw to make the ball rise. The height of the ball rises is proportional to the force and volume of the inhalation. However, its internal structure is also relatively complex, difficult to clean and disinfect, and it is large and not easy to carry. (2) Capacity breathing trainer. It usually has a container with a variable capacity and a scale on it. When the patient inhales or exhales to a certain volume, the corresponding value will be displayed on the scale. It has a relatively simple structure, a single function, cannot adjust the resistance, and is very large and not easy to carry. (3) Resistance breathing trainer. It consists of a breathing valve and filter elements with different resistance levels. When the patient inhales or exhales through the breathing valve, the filter element will generate a certain resistance. As the breathing intensity of this type of breathing trainer increases, the internal pressure will increase accordingly. When a patient breathes too hard, the pressure inside the trainer can increase dramatically, causing a sharp rise in pressure within the patient's airway. If the pressure exceeds the airway's tolerance, it can lead to barotrauma, such as pneumothorax and pneumomediastinum. Therefore, resistance breathing trainers must be used under the guidance of medical personnel and should not be used with excessive force.

[0005] In order to prevent the situation where the pressure of the respiratory tract exceeds the tolerance of the existing resistance-type respiratory trainer during training, a breathing device for COPD rehabilitation training is designed. It uses an electronically controlled active air pressure regulation component to dynamically adjust the resistance of the breathing training in real time, allowing users to find a more comfortable resistance level more quickly during training. The internal pressure value of the device is monitored in real time through the built-in pressure sensor. Once the breathing training exceeds the tolerance of the respiratory tract, the active air pressure regulation component is used to immediately reduce the pressure, making rehabilitation training safer. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a breathing device for COPD rehabilitation training, which solves the problem that when using the current resistance-type breathing trainer, the pressure may exceed the patient's respiratory tract tolerance.

[0007] The technical problem to be solved by the present invention is achieved by adopting the following technical solutions:

[0008] A breathing device for COPD rehabilitation training, comprising an air nozzle, an air cylinder with a built-in filter element, and a cylinder cover with an opening, as well as an active air pressure regulating component and a control component;

[0009] The active air pressure regulating assembly includes a regulating cylinder, a forward and reverse motor, a bracket, and a fan blade. The air nozzle, the air cylinder, the regulating cylinder, and the cylinder cover are sealed in sequence. The forward and reverse motor is suspended and fixed on the central axis of the regulating cylinder through multiple brackets. The fan blade is fixed to the rotating shaft of the forward and reverse motor.

[0010] The control component includes a controller, a battery, a switch button, a resistance adjustment button, a pressure sensor, a speaker, and a handle. The controller is electrically connected to the forward and reverse motors, the battery, the switch button, the resistance adjustment button, the pressure sensor, and the speaker. The handle is fixed under the air cylinder. The controller and battery are arranged in the handle. The switch button, the resistance adjustment button, and the speaker are arranged on the handle. The pressure sensor is installed on the inner wall of the air cylinder between the filter element and the air nozzle.

[0011] As a preferred example, the connection end of the regulating cylinder and the air cylinder is sealed by a quick-release structure.

[0012] As a preferred example, the quick-release structure adopts a pair of attracted magnetic rings, which are respectively fixed on the connecting end faces of the regulating cylinder and the air cylinder, and sealing gaskets are provided on the end faces of the pair of magnetic rings that contact each other.

[0013] As a preferred example, a quick-connect plug and a quick-connect socket are respectively provided on the connecting end surfaces of the regulating cylinder and the air cylinder, and the wires of the forward and reverse motors are connected to the controller through the quick-connect plug and the quick-connect socket.

[0014] As a preferred example, a switch button is provided on the upper part of the handle, a resistance adjustment button and a speaker are provided on the lower end of the handle, and the middle part of the handle is a hand grip.

[0015] The beneficial effects of the present invention are: it has a compact structure and is easy to carry, and uses an electronically controlled active air pressure regulating component to dynamically adjust the resistance of breathing training in real time, allowing users to find a more comfortable resistance level more quickly during training. The internal pressure value of the device is monitored in real time through a built-in pressure sensor. Once the breathing training exceeds the pressure that the respiratory tract can withstand, the active air pressure regulating component is immediately used to reduce the pressure, making rehabilitation training safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the explosion structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0018] Figure 3 It is a structural diagram of the active air pressure regulating assembly and the cylinder cover;

[0019] Figure 4 This is a schematic diagram of the circuit principle of the utility model;

[0020] Figure 5 It is a schematic diagram of the structure of the utility model after assembly.

[0021] In the figure: 1. Air nozzle; 2. Filter element; 3. Air cylinder; 4. Active air pressure adjustment component; 401. Adjustment cylinder; 402. Forward and reverse motor; 403. Bracket; 404. Fan blades; 5. Cylinder cover; 501. Opening; 6. Control component; 601. Switch button; 602. Pressure sensor; 603. Speaker; 604. Handle; 605. Exhalation resistance adjustment button; 606. Inhalation resistance adjustment button; 7. Magnetic ring; 8. Quick-connect plug; 9. Quick-connect socket. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, the present invention is further described below with reference to specific illustrations.

[0023] The "respirator", "respiratory trainer" and "respiratory device" mentioned in this article have the same meaning, and all refer to respiratory devices used for COPD rehabilitation training.

[0024] like Figure 1As shown, the respiratory device for COPD rehabilitation training provided in this solution includes an air nozzle 1, a filter element 2, an air cylinder 3, an active air pressure regulating assembly 4, and a cylinder cover 5. The air nozzle 1 is sealed to one end of the air cylinder 3. The air cylinder 3 is equipped with a filter element 2 to provide airflow resistance. The resistance level of the filter element 2 is selected by the doctor based on the patient's condition. The other end of the air cylinder 3 is sealed to one end of the active air pressure regulating assembly 4. The other end of the active air pressure regulating assembly 4 is sealed by a cylinder cover 5 with an opening 501. A handle 604 is fixed below the air cylinder 3.

[0025] The existing breathing trainer does not include an active air pressure regulating component 4 . The patient blows air from the air nozzle 1 into the air cylinder 3 , which is blocked by the filter core 2 and then discharged from the cylinder cover 5 with the opening 501 .

[0026] When a patient uses an existing respirator for exhalation training, the gas exhaled by the patient enters the trainer from the nozzle 1. The interior of the cylinder 3 is equivalent to a rigid space. Under the resistance of the filter element 2, the intake flow rate will temporarily be greater than the exhaust flow rate, causing the gas inside the cylinder 3 to gradually increase.

[0027] According to the ideal gas state equation: pV = nRT, where p is the gas pressure, V is the gas volume, n is the amount of gas, R is the ideal gas constant, and T is the thermodynamic temperature.

[0028] When the amount n of the gas inside the cylinder 3 increases, the gas pressure p will also increase while the temperature and volume remain unchanged.

[0029] The increase in pressure p will in turn increase the exhaust flow rate. When the exhaust flow rate increases to the same as the intake flow rate, the amount of gas n no longer changes. At this time, the inside and outside of the air cylinder 3 reach a dynamic balance. The patient needs to overcome the pressure p at this time at the air nozzle 1 to blow air to achieve the training effect.

[0030] If the patient exhales excessively during training, the air cannot be expelled promptly due to the unadjustable resistance of filter element 2. Consequently, a large amount of air can enter the trainer through nozzle 1 in a short period of time, causing a sharp increase in the air pressure p inside cylinder 3. This resistance is then transmitted to the patient's airway, causing a sharp increase in airway pressure. If this pressure exceeds the airway's tolerance, it can lead to barotrauma, such as pneumothorax and pneumomediastinum. Similarly, if the patient inhales excessively during training, a severe negative pressure can form in the airway, which can also harm the body.

[0031] In order to solve the problem of excessive pressure in the respiratory tract caused by excessive breathing during training, an active air pressure regulating component 4 is installed on the air cylinder 3. The active air pressure regulating component 4 can be used to adjust the pressure on the side of the filter element 2 close to the opening 501 (referred to as the outside in this article) to adjust the pressure difference between the inside and outside of the filter element 2, thereby adjusting the gas flow rate flowing through the filter element 2, thereby achieving the effect of regulating the internal pressure of the air cylinder 3 and controlling the patient's respiratory resistance within a safe range.

[0032] like Figure 2 、 Figure 3 As shown, the overall structure of the breathing device and the structure of the active air pressure regulating component 4, wherein the active air pressure regulating component 4 includes a regulating cylinder 401, a forward and reverse motor 402, a bracket 403, and a fan blade 404, the air nozzle 1, the air cylinder 3, the regulating cylinder 401 and the cylinder cover 5 are sealed and connected in sequence, the forward and reverse motor 402 is suspended and fixed on the central axis of the regulating cylinder 401 through multiple brackets 403, and the fan blade 404 is fixed to the rotating shaft of the forward and reverse motor 402.

[0033] The square motor can drive the fan blades 404 to rotate in the forward and reverse directions, thereby generating a forward and reverse air pressure difference on both sides of the fan blades 404.

[0034] like Figure 2-Figure 4 As shown, the control component 6 includes a controller, a battery, a switch button 601, a resistance adjustment button, a pressure sensor 602, a speaker 603, and a handle 604. The controller is electrically connected to the forward and reverse motor 402, the battery, the switch button 601, the resistance adjustment button (including the exhalation resistance adjustment button 605 and the inhalation resistance adjustment button 606), the pressure sensor 602, and the speaker 603. The controller and the battery are arranged in the handle 604, the switch button 601, the resistance adjustment button, and the speaker 603 are arranged on the handle 604, and the pressure sensor 602 is installed on the inner wall of the cylinder 3.

[0035] The exhalation resistance adjustment button 605 is composed of an exhalation resistance increase button and an exhalation resistance decrease button; the inhalation resistance adjustment button 606 is composed of an inhalation resistance increase button and an inhalation resistance decrease button.

[0036] Among them, the exhalation resistance adjustment button 605 is used to set the maximum pressure value for exhalation. The inhalation resistance adjustment button 606 is used to set the minimum negative pressure value for inhalation. Both positive and negative pressures in this article are based on one standard atmospheric pressure. In this article, the exhalation resistance is expressed as positive pressure. For example, if it is 0.196 bar greater than one standard atmospheric pressure, the pressure value of the exhalation resistance is expressed as +0.196 bar; the inhalation resistance is expressed as negative pressure. For example, if it is 0.147 bar less than one standard atmospheric pressure, the pressure value of the inhalation resistance is expressed as -0.147 bar.

[0037] For example, during initial rehabilitation training, if the pressure value of the expiratory resistance is recommended to be around 10 to 20 cmH2O (approximately 0.098 to 0.196 bar), then the maximum expiratory pressure value is set at 20 cmH2O (+0.196 bar). As the rehabilitation training progresses and the patient's respiratory function improves, the pressure value can be gradually increased under the guidance of a doctor or professional rehabilitation therapist. Existing resistance ventilators do not have an active air pressure regulating component 4, and cannot guarantee that the pressure value will not exceed the safe range when the patient breathes hard. After the pressure value is set in this solution, the pressure value is monitored in real time through the pressure sensor 602, thereby driving the rotation direction and speed of the fan blades 404 to adjust the pressure value so that it does not exceed the set range.

[0038] Working principle:

[0039] (1) Exhalation training: Turn on the switch button 601, and under the guidance of a doctor or professional rehabilitation therapist, input the maximum pressure value of the exhalation resistance (for example: +0.196 bar) into the controller through the exhalation resistance adjustment button 605 for storage. The patient covers the nozzle 1 with their mouth and blows into it. Pressure sensor 602 monitors the pressure in real time. When the pressure value monitored by pressure sensor 602 is less than or equal to the maximum pressure value of expiratory resistance (for example, the real-time pressure value is +0.147 bar < +0.196 bar), forward and reverse motor 402 does not operate. When the pressure value monitored by pressure sensor 602 is greater than the maximum pressure value of expiratory resistance (for example, the real-time pressure value is +0.210 bar > +0.196 bar), forward and reverse motor 402 drives fan 404 to blow air from filter element 2 toward opening 501, further reducing the pressure outside filter element 2 compared to the inside, thereby increasing the exhaust flow of filter element 2 and reducing the internal pressure of cylinder 3, bringing the internal pressure closer to standard atmospheric pressure, and maintaining the patient's expiratory resistance within the set maximum pressure value of expiratory resistance. If the pressure value exceeds the range, the controller simultaneously controls speaker 603 to play an out-of-range warning sound.

[0040] (2) Inhalation training: Turn on the switch button 601, and under the guidance of a doctor or professional rehabilitation therapist, input the minimum negative pressure value of the inhalation resistance (for example: -0.098 bar) into the controller through the inhalation resistance adjustment button 606 for storage. The patient covers the nozzle 1 with their mouth and inhales. Pressure sensor 602 monitors the pressure in real time. When the pressure value monitored by pressure sensor 602 is greater than or equal to the minimum pressure value for inhalation resistance (for example, the real-time pressure value is -0.067 bar > -0.098 bar), forward and reverse motor 402 does not operate. When the pressure value monitored by pressure sensor 602 is less than the minimum pressure value for expiratory resistance (for example, the real-time pressure value is -0.127 bar < -0.098 bar), forward and reverse motor 402 drives fan 404 to blow air from opening 501 toward filter element 2, causing the pressure outside filter element 2 to increase relative to the pressure inside, thereby increasing the air flow into filter element 2 and increasing the internal pressure of cylinder 3, bringing the internal pressure closer to standard atmospheric pressure and maintaining the patient's expiratory resistance within the set minimum pressure value for inhalation resistance. If the pressure value exceeds the range, the controller simultaneously controls speaker 603 to play an out-of-range warning sound.

[0041] like Figure 2 、 Figure 3 As shown, the connection ends of the adjustment cylinder 401 and the air cylinder 3 are sealed via a quick-release structure. To facilitate the circuit connection between the square motor 402 and the controller, the adjustment cylinder 401 and the air cylinder 3 are preferably connected in a plug-in manner. The quick-release structure utilizes a pair of attracting magnetic rings 7, which are respectively fixed to the connecting end surfaces of the adjustment cylinder 401 and the air cylinder 3. The contacting end surfaces of the pair of magnetic rings 7 are provided with sealing gaskets for sealing. The quick-release structure utilizes a quick-suction connection structure with the magnetic rings 7. The contacting end surfaces of the adjustment cylinder 401 and the air cylinder 3 are provided with mutually attracting magnetic rings 7. The contacting end surfaces are provided with sealing gaskets for sealing. The sealing gaskets are compressed and sealed by suction. The quick-release structure can also utilize a snap-fit ​​connection structure. The adjustment cylinder 401 and the air cylinder 3 are securely connected via multiple pairs of snaps and slots (not shown). Similarly, sealing gaskets are provided on the contacting end surfaces of the adjustment cylinder 401 and the air cylinder 3.

[0042] The connection ends of the adjustment cylinder 401 and the air cylinder 3 are respectively provided with a quick-connect plug 8 and a quick-connect socket 9. The wires of the forward and reverse motor 402 are connected to the controller through the quick-connect plug 8 and the quick-connect socket 9. The handle 604 is provided with a switch button 601 at the top, a resistance adjustment button and a speaker 603 at the bottom, and the middle of the handle 604 is a hand grip.

[0043] The active air pressure regulating assembly 4 is sealed and connected via a quick-release structure, which makes it easy to replace the filter element 2 after disassembly and also facilitates comprehensive internal cleaning and disinfection.

[0044] The cylinder cover 5 and the regulating cylinder 401 can be secured together by magnetism, snaps, or threads. The filter element 2 can be screwed into the cylinder 3, making replacement, cleaning, and disinfection easy. A rechargeable lithium battery is used. The controller utilizes an MCU microcontroller, and the battery powers all electrical components.

[0045] like Figure 5 As shown, the breathing device's nozzle 1, cylinder 3, active air pressure regulator assembly 4, and cylinder cover 5 are easy to assemble and disassemble, allowing for quick internal cleaning and disinfection. The device is relatively compact, making it easy to carry around. During use, the patient grasps the middle of the handle 604, covers the nozzle 1 with their mouth, and performs breathing exercises as directed.

[0046] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments and that various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A breathing device for COPD rehabilitation training, comprising an air nozzle, an air cylinder with a built-in filter element, and a cylinder cover with an opening, characterized in that: Also included are active air pressure regulation components and control components; The active air pressure regulating assembly includes a regulating cylinder, a forward and reverse motor, a bracket, and a fan blade. The air nozzle, the air cylinder, the regulating cylinder, and the cylinder cover are sealed in sequence. The forward and reverse motor is suspended and fixed on the central axis of the regulating cylinder through multiple brackets. The fan blade is fixed to the rotating shaft of the forward and reverse motor. The control component includes a controller, a battery, a switch button, a resistance adjustment button, a pressure sensor, a speaker, and a handle. The controller is electrically connected to the forward and reverse motors, the battery, the switch button, the resistance adjustment button, the pressure sensor, and the speaker. The handle is fixed under the air cylinder. The controller and battery are arranged in the handle. The switch button, the resistance adjustment button, and the speaker are arranged on the handle. The pressure sensor is installed on the inner wall of the air cylinder between the filter element and the air nozzle.

2. A breathing apparatus for COPD rehabilitation training according to claim 1, characterized in that: The connection end of the regulating cylinder and the air cylinder is sealed and connected via a quick-release structure.

3. A breathing apparatus for COPD rehabilitation training according to claim 2, characterized in that: The quick-release structure adopts a pair of attracted magnetic rings, which are respectively fixed on the connecting end faces of the regulating cylinder and the air cylinder. Sealing gaskets for sealing are provided on the end faces of the pair of magnetic rings that contact each other.

4. A breathing apparatus for COPD rehabilitation training according to claim 2, characterized in that: The connection end surfaces of the regulating cylinder and the air cylinder are respectively provided with a quick-connect plug and a quick-connect socket, and the wires of the forward and reverse motors are connected to the controller through the quick-connect plug and the quick-connect socket.

5. A breathing apparatus for COPD rehabilitation training according to claim 1, characterized in that: A switch button is arranged on the upper part of the handle, a resistance adjustment button and a speaker are arranged on the lower end of the handle, and the middle part of the handle is a hand grip.

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