A postoperative pulmonary rehabilitation training device

Abstract

This invention discloses a postoperative pulmonary rehabilitation training device, comprising a cover, a ventilation tube, an impedance mechanism, and a metering component. The front end of the ventilation tube is threadedly connected to the rear end of the cover. An ventilation chamber is formed along the axial direction inside the side wall of the ventilation tube. An inhalation through-hole and an expiratory through-hole are respectively formed at the front and rear ends of the inner wall of the ventilation tube. The impedance mechanism is disposed inside the ventilation tube and includes an expiratory tube, an inhalation tube, and an air resistance element. The outer walls of the expiratory and inhalation tubes slide against the inner wall of the ventilation tube. The two ends of the air resistance element are respectively sealed on the adjacent end faces of the expiratory and inhalation tubes. The metering component controls the movement distance of the air resistance element. By adjusting the movement distance of the air resistance element through the metering component, the air resistance element is blocked after moving a certain distance during the patient's expiratory and inhalation exercises. This allows the patient to accurately control the intensity of each expiratory and inhalation, avoiding excessive or insufficient inhalation, and facilitating the rapid recovery of lung function.

Description

Technical Field

[0001] This invention relates to the field of medical assistive technology, specifically to a postoperative lung rehabilitation training device. Background Technology

[0002] Pulmonary rehabilitation is a multidisciplinary, comprehensive intervention approach for patients with symptomatic chronic respiratory diseases and declining daily living abilities. The scope of pulmonary rehabilitation is expanding beyond patients with lung diseases. Breathing training is a method to ensure airway patency, improve respiratory muscle function, promote sputum expectoration and drainage, and enhance gas exchange efficiency.

[0003] In the actual practice of cardiothoracic surgery, after a patient completes surgical treatment, in order to assist in the recovery of lung function, in addition to drug therapy, certain physical therapy is often required. A common method is to increase the resistance of exhalation or inhalation to improve the function of respiratory muscles.

[0004] Currently, after lung surgery, patients often use respiratory trainers to train their lung function by applying resistance during exhalation and inhalation in order to restore lung function as quickly as possible. However, during exhalation and inhalation training, it is difficult to accurately control the intensity of exhalation and inhalation. When the patient breaks through the resistance during exhalation (or inhalation), they may still be increasing the force of exhalation (or inhalation), resulting in excessive or insufficient force, leading to unsatisfactory training results. Moreover, patients cannot accurately control the duration of each exhalation (or inhalation), further reducing the training effect. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention proposes a postoperative pulmonary rehabilitation training device. This device solves the problem that when a patient exhales (or inhales) to break through resistance, the force of the exhalation (or inhalation) may be increased, resulting in excessive or insufficient force, leading to unsatisfactory training effects. Furthermore, patients cannot accurately grasp the timing of each exhalation (or inhalation), which reduces the training effect.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0007] A postoperative pulmonary rehabilitation training device, comprising:

[0008] A cover, the cover being used to cover the patient's mouth;

[0009] The ventilation tube has its front end threadedly connected to the rear end of the cover. The ventilation tube has a ventilation cavity opened along the axial direction inside the side wall of the ventilation tube. The front end and rear end of the inner wall of the ventilation tube have an inhalation passage and an exhalation passage, respectively.

[0010] An impedance mechanism is provided inside the ventilation tube. The impedance mechanism includes an expiratory tube, an inspiratory tube, and an airlock. The outer walls of the expiratory and inspiratory tubes slide against the inner wall of the ventilation tube, and the expiratory and inspiratory tubes are symmetrically spaced. The expiratory tube is located on the side closest to the mask. The airlock is located between the expiratory and inspiratory tubes, with its two ends sealing the adjacent end faces of the expiratory and inspiratory tubes. Two symmetrically arranged baffle rings are fixed to the inner wall of the ventilation tube at the two ends of the airlock. Multiple air outlets and multiple air inlets are respectively opened on the inner wall of the ventilation tube at the positions corresponding to the inspiratory and expiratory tubes. An air-blocking ring is fixed inside the ventilation chamber at the position corresponding to the airlock. The airlock is moved by the patient's exhalation or inhalation, thereby connecting the air outlets with the interior of the ventilation tube or the air inlets with the interior of the ventilation tube.

[0011] A metering component, which is used to control the movement distance of the gas resistance element.

[0012] The aforementioned postoperative pulmonary rehabilitation training device adjusts the movement distance of the air resistance component through a quantitative component, so that the air resistance component is blocked after moving a certain distance during the patient's exhalation and inhalation exercises. This allows the patient to accurately control the intensity of each exhalation and inhalation, avoiding excessive or insufficient breathing, thereby enabling the patient to achieve the required exhalation and inhalation intensity and facilitating the rapid recovery of lung function.

[0013] Furthermore, the air resistance component includes an air resistance main plate and an exhalation spring. The air resistance main plate is disposed between the exhalation tube and the inhalation tube. The diameter of the air resistance main plate is smaller than the outer diameter of the exhalation tube and larger than the inner diameter of the exhalation tube. An exhalation ring groove is formed on the rear end face of the exhalation tube. The exhalation spring is disposed in the exhalation ring groove, and one end of the exhalation spring is fixedly connected to the inner wall of the exhalation ring groove, and the other end is fixedly connected to the side of the air resistance main plate facing the exhalation tube. The exhalation spring is always in a stretched state. Multiple air outlets are distributed in a ring array on the inner wall of the airway tube at the position corresponding to the outer front end of the inhalation tube.

[0014] Furthermore, the air resistance component also includes an inhalation spring. An inhalation ring groove is provided on the front end face of the inhalation tube. The inhalation spring is set in the exhalation ring groove, and one end of the exhalation spring is fixedly connected to the inner wall of the exhalation ring groove, while the other end is fixedly connected to the side of the air resistance main board facing the inhalation tube. The exhalation spring is always in a stretched state, and multiple air inlets are arranged in a ring array on the inner wall of the ventilation tube at the position corresponding to the outer rear end of the exhalation tube.

[0015] Furthermore, the air resistance component also includes two hollow air resistance pillars, which are fixedly connected to the two sides of the air resistance main board. The two air resistance pillars are slidably inserted into the interior of the exhalation tube and the inhalation tube, respectively, and the outer walls of the two air resistance pillars are slidably attached to the inner walls of the exhalation tube and the inhalation tube, respectively. Multiple through-holes are opened on the outer side of the ends of the two air resistance pillars near the air resistance main board.

[0016] Furthermore, the diameter of the air resistance main plate is smaller than the inner diameter of the septum ring, and the rear end face of the expiratory tube and the front end face of the inspiratory tube abut against the opposite sides of the two septum rings.

[0017] Furthermore, there are two metering components, which are respectively located at the front and rear ends inside the ventilation tube to control the movement distance of the expiratory and inspiratory tubes, respectively.

[0018] Furthermore, the metering component includes a rotating rod, a metering sliding ring, and a metering fixing ring. Sliding ring grooves are provided on the inner walls of the front and rear ends of the ventilation tube. The metering sliding ring is slidably disposed in the sliding ring groove. The metering fixing ring is fixed on the inner wall of the sliding ring groove away from the air resistance component. A threaded sleeve is fixedly connected to the axis of the metering fixing ring via a connecting rod. A positioning plate is fixedly connected to the axis of the metering sliding ring via a connecting rod. One end of the rotating rod is threaded through the threaded sleeve and extends to abut against the positioning plate. Metering resistance rings are fixedly provided on the opposite sides of the two metering sliding rings. The sides of the two metering resistance rings can abut against the front end face of the expiratory tube and the rear end face of the inspiratory tube, respectively.

[0019] Furthermore, the ventilation tube is made of transparent material, and there are scale lines on the outer wall of the front end and the outer wall of the rear end of the ventilation tube. The two scale lines are symmetrically arranged, and the zero mark of the two scale lines is flush with the front end of the expiratory tube and the rear end of the inspiratory tube, respectively.

[0020] Furthermore, sensors are provided on the sides of the two metering rings that are close to each other, and a warning screen is provided on the top side of the outer wall of the vent pipe. The warning screen is electrically connected to the sensors.

[0021] The beneficial effects of this invention are as follows: This postoperative pulmonary rehabilitation training device adjusts the movement distance of the air resistance main board by rotating the lever, so that the main board is blocked after moving a certain distance during the patient's exhalation and inhalation exercises. This allows the patient to accurately control the intensity of each exhalation and inhalation, avoiding excessive or insufficient breathing, thus enabling the patient to achieve the required exhalation and inhalation intensity and facilitating the rapid recovery of lung function. Furthermore, the setting of the illumination time on the warning screen allows the patient to accurately grasp the exercise time of each exhalation and inhalation, improving the training effect. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of the present invention, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0023] Figure 1 This is the front view of the present invention;

[0024] Figure 2 This is a schematic diagram of the venting tube.

[0025] Figure 3 This is the front view of the invention (exhalation state).

[0026] Figure 4 This is a schematic diagram of the impedance mechanism;

[0027] Figure 5 This is a schematic diagram of the quantitative component.

[0028] Figure 6 This is a top view of the present invention;

[0029] Figure label:

[0030] 10-Cover body;

[0031] 20-Ventilation tube, 21-Ventilation chamber, 22-Inhalation vent, 23-Exhalation vent, 24-Outlet, 25-Inlet, 26-Sliding ring groove;

[0032] 30-Impedance mechanism, 31-Exhalation tube, 32-Inhalation tube, 33-Air resistance component, 331-Air resistance main board, 332-Exhalation spring, 333-Exhalation ring groove, 334-Inhalation spring, 335-Inhalation ring groove, 34-Air resistance column, 35-Air hole;

[0033] 40-Quantitative component, 41-Rotating rod, 42-Quantitative sliding ring, 43-Quantitative fixing ring, 44-Threaded sleeve, 45-Positioning plate, 46-Quantitative blocking ring, 47-Sensor, 48-Warning screen, 49-Connecting rod;

[0034] 50 - partition ring, 60 - air-blocking ring, 70 - graduation line. Detailed Implementation

[0035] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.

[0036] In the description of this invention, it should be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation and positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the indicated position or element must have a specific orientation, or be constructed and operated in a specific way. Therefore, they should not be construed as limitations on this invention.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0038] Please see Figures 1 to 2 This invention provides a postoperative pulmonary rehabilitation training device, comprising a cover 10, a ventilation tube 20, an impedance mechanism 30, and a metering component 40. The cover 10 is used to cover the patient's mouth. The front end of the ventilation tube 20 is threadedly connected to the rear end of the cover 10. A ventilation chamber 21 is formed along the axial direction inside the side wall of the ventilation tube 20. An inhalation port 22 and an exhalation port 23 are respectively formed at the front and rear ends of the inner wall of the ventilation tube 20. The impedance mechanism 30 is disposed inside the ventilation tube 20. The impedance mechanism 30 includes... The ventilation system includes an expiratory tube 31, an inspiratory tube 32, and an airlock 33. The outer walls of the expiratory tube 31 and the inspiratory tube 32 are slidably fitted against the inner wall of the ventilation tube 20, and the expiratory tube 31 and the inspiratory tube 32 are symmetrically spaced. The expiratory tube 31 is located on the side closest to the mask 10, and the airlock 33 is located between the expiratory tube 31 and the inspiratory tube 32, with both ends of the airlock 33 sealing the adjacent end faces of the expiratory tube 31 and the inspiratory tube 32, respectively. A metering component 40 is used to control the movement distance of the airlock 33. The mask 10 is made of elastic silicone, allowing it to fit more snugly over the patient's mouth.

[0039] The ventilation tube 20 has two symmetrically arranged baffle rings 50 fixed on its inner wall at both ends of the air-blocking element 33. Multiple air outlets 24 and multiple air inlets 25 are respectively opened on the inner wall of the ventilation tube 20 at positions corresponding to the inspiratory tube 32 and the expiratory tube 31. An air-blocking ring 60 is fixed inside the ventilation chamber 21 at positions corresponding to the air-blocking element 33. The patient's exhalation or inhalation pushes the air-blocking element 33 to move, thereby connecting the air outlets 24 with the interior of the ventilation tube 20 or connecting the air inlets 25 with the interior of the ventilation tube 20. Initially, all air outlets 24 are blocked by the inspiratory tube 32, and all air inlets 25 are blocked by the expiratory tube 31.

[0040] When in use, the mask 10 is placed over the patient's mouth, and then the patient exhales. The exhaled air enters the ventilation tube 20 through the mask 10 and then flows into the interior of the exhalation tube 31. The pushing of the air pushes the air resistance 33, causing the air resistance to leave the rear end of the exhalation tube 31. At the same time, the movement of the air resistance 33 also pushes the inhalation tube 32 to move synchronously within the ventilation tube 20. The movement of the inhalation tube 32 exposes the outlet 24 that was blocked by the inhalation tube 32. At this time, the air flows out from the exhalation tube 31, passes through the outlet 24, enters the ventilation chamber 21, and then flows from the ventilation chamber 21 through the exhalation through-hole 23 into the rear end of the ventilation tube 20, and finally flows to the outside.

[0041] When inhalation is required, gas enters the inhalation tube 32 through the ventilation tube 20, pushing the air resistance element 33 away. At the same time, the exhalation tube 31 is moved synchronously, exposing the inhalation port 35 that was previously blocked by the exhalation tube 31. This allows the gas to pass sequentially through the inhalation port 35, the ventilation chamber 21, and the inhalation through-hole 22, finally entering the mask 10 and being inhaled into the patient's mouth. During the patient's exhalation or inhalation, the gas pushing the air resistance element 33 needs to overcome a certain resistance. The metering component 40 can adjust the movement distance of the air resistance element 33, allowing the patient to quickly grasp the intensity of exhalation or inhalation, accurately reaching the required training intensity each time, avoiding excessive or insufficient intensity, thereby enabling lung function to recover as quickly as possible.

[0042] Please refer to the following: Figure 3 and Figure 4 Specifically, the air resistance component 33 includes an air resistance main plate 331 and an exhalation spring 332. The air resistance main plate 331 is disposed between the exhalation tube 31 and the inhalation tube 32. The diameter of the air resistance main plate 331 is smaller than the outer diameter of the exhalation tube 31 and larger than the inner diameter of the exhalation tube 31. An exhalation ring groove 333 is provided on the rear end face of the exhalation tube 31. The exhalation spring 332 is disposed in the exhalation ring groove 333. One end of the exhalation spring 332 is fixedly connected to the inner wall of the exhalation ring groove 333, and the other end is fixedly connected to the side of the air resistance main plate 331 facing the exhalation tube 31. The exhalation spring 332 is always in a stretched state. Multiple air outlets 24 are arranged in a ring array on the inner wall of the ventilation tube 20 at the position corresponding to the outer front end of the inhalation tube 32.

[0043] When the patient performs exhalation exercises, the exhaled air enters the expiratory tube 31 and pushes the air resistance main plate 331. Due to the restoring force of the expiratory spring 332, the air resistance main plate 331 is pulled to adhere to the rear end face of the expiratory tube 31. The pushing of the air overcomes the restoring force generated by the expiratory spring 332, causing the side of the air resistance main plate 331 to move away from the rear end face of the expiratory tube 31, allowing the air to flow out from the gap between the air resistance main plate 331 and the rear end face of the expiratory tube 31. At the same time, as the air resistance main plate 331 moves towards the rear end of the ventilation tube 20, it will simultaneously push the inhalation tube 32 to move, thereby exposing the blocked air outlet 24, which allows the air to flow to the outside through the air outlet 24.

[0044] The air resistance component 33 also includes an inhalation spring 334. An inhalation ring groove 335 is formed on the front end face of the inhalation tube 32. The inhalation spring 334 is disposed within the exhalation ring groove 333, with one end of the exhalation spring 332 fixedly connected to the inner wall of the exhalation ring groove 333 and the other end fixedly connected to the side of the air resistance main plate 331 facing the inhalation tube 32. The exhalation spring 332 is always in a stretched state. Multiple air inlets 25 are arranged in a ring array on the inner wall of the ventilation tube 20, corresponding to the outer rear end of the exhalation tube 31.

[0045] When the patient performs inhalation exercises, the air inhaled into the expiratory tube 31 pushes the air resistance main plate 331. Due to the restoring elasticity of the expiratory spring 332, the air resistance main plate 331 is pulled to adhere to the front end face of the inhalation tube 32. The pushing of the air overcomes the restoring elasticity generated by the expiratory spring 332, causing the side of the air resistance main plate 331 to move away from the front end face of the inhalation tube 32, allowing the air to flow out from the gap between the air resistance main plate 331 and the front end face of the inhalation tube 32. At the same time, as the air resistance main plate 331 moves towards the front end of the ventilation tube 20, it will push the expiratory tube 31 to move, thereby exposing the blocked air inlet 25, which allows the air to flow through the air inlet 25 into the mask 10.

[0046] Furthermore, the greater the intensity of the patient's exhalation or inhalation, the greater the distance that the exhaled or inhaled gas pushes the air resistance mainboard 331 to move, and the greater the resistance that the patient overcomes during exhalation or inhalation, thus enabling the patient to achieve the required exhalation intensity, which is beneficial to lung recovery.

[0047] Preferably, the air resistance component 33 further includes two hollow air resistance pillars 34, which are fixedly connected to the two sides of the air resistance main board 331. The two air resistance pillars 34 are slidably inserted into the interior of the exhalation tube 31 and the inhalation tube 32, respectively, and the outer walls of the two air resistance pillars 34 are slidably attached to the inner walls of the exhalation tube 31 and the inhalation tube 32, respectively. Multiple through-holes 35 are opened on the outer side of the ends of the two air resistance pillars 34 near the air resistance main board 331, and the multiple air holes 35 are distributed in a ring array.

[0048] The air resistance column 34 serves as a guide, ensuring that the movement of the air resistance main plate 331 is on the axis of the exhalation tube 31 and the inhalation tube 32, preventing misalignment that would cause the air resistance main plate 331 to not accurately fit the rear end face of the exhalation tube 31 or the front end face of the inhalation tube 32; the multiple air holes 35 facilitate the flow of gas from the exhalation tube 31 into the ventilation tube 20 or from the inhalation tube 32 into the ventilation tube 20.

[0049] In this embodiment, the diameter of the air resistance main plate 331 is smaller than the inner diameter of the diaphragm ring 50, so that the diaphragm ring 50 cannot obstruct the movement of the air resistance main plate 331. The rear end face of the expiratory tube 31 and the front end face of the inspiratory tube 32 respectively abut against the opposite sides of the two diaphragm rings 50. The two diaphragm rings 50 are used to restrict the movement of the expiratory tube 31 and the inspiratory tube 32. When exhaling, one diaphragm ring 50 can restrict the movement of the expiratory tube 31, and when inhaling, the other diaphragm ring 50 can restrict the movement of the inspiratory tube 32.

[0050] Please refer to the following: Figure 5 In this embodiment, there are two metering components 40, which are respectively located at the front and rear ends inside the ventilation tube 20, and are used to control the movement distance of the expiratory tube 31 and the inspiratory tube 32. By adjusting the movement distance of the air resistance main plate 331 during exhalation or inhalation through the metering components 40, the patient can accurately grasp the intensity of each exhalation or inhalation.

[0051] Specifically, the metering component 40 includes a rotating rod 41, a metering sliding ring 42, and a metering fixing ring 43. Sliding ring grooves 26 are provided on the inner walls of the front and rear ends of the ventilation tube 20. The metering sliding ring 42 is slidably disposed in the sliding ring groove 26. The metering fixing ring 43 is fixed on the inner wall of the sliding ring groove 26 away from the air resistance component 33. A threaded sleeve 44 is fixedly connected to the axis of the metering fixing ring 43 through a connecting rod 49. A positioning plate 45 is fixedly connected to the axis of the metering sliding ring 42 through a connecting rod 49. One end of the rotating rod 41 is threaded through the threaded sleeve 44 and extends to abut against the positioning plate 45. Metering blocking rings 46 are fixedly provided on the opposite sides of the two metering sliding rings 42. The sides of the two metering blocking rings 46 can abut against the front end face of the exhalation tube 31 and the rear end face of the inhalation tube 32, respectively.

[0052] When adjusting the movement distance of the air resistance main plate 331 during exhalation, rotating the lever 41 causes it to move away from the air resistance main plate 331 due to the threaded connection between the lever 41 and the threaded sleeve 44. This causes the lever 41 to move the positioning plate 45 synchronously. During the patient's exhalation, the inspiratory tube 32 stops moving when it encounters the metering resistance ring 46. Once the patient perceives this, the exhalation intensity is maintained, preventing it from being too high or too low. This allows the patient to accurately control the exhalation intensity for each breath, achieving the desired training effect. Furthermore, the movement distance of the air resistance main plate 331 during inhalation can be adjusted using the same method.

[0053] Preferably, the ventilation tube 20 is made of a transparent material, and scale lines 70 are provided on both the outer wall of the front end and the outer wall of the rear end of the ventilation tube 20. The two scale lines 70 are symmetrically arranged, and the zero mark of the two scale lines 70 is flush with the front end face of the expiratory tube 31 and the rear end face of the inspiratory tube 32, respectively. The positions of the expiratory tube 31 and the inspiratory tube 32 can be seen through the transparent ventilation tube 20, and the movement distance of the metering resistance ring 46 can be observed through the scale lines 70, so as to accurately adjust the movement distance of the air resistance main plate 331, thereby accurately adjusting the amount of resistance overcome by exhalation or inhalation, so as to adjust it to the intensity of exhalation or inhalation that suits the patient's own needs.

[0054] Please refer to the following: Figure 6 Furthermore, sensors 47 are provided on the sides of the metering resistance rings 46 that are close to each other, and an alarm screen 48 is provided on the top side of the outer wall of the ventilation tube 20. The alarm screen 48 is electrically connected to the sensors 47. The alarm screen 48 and the sensors 47 are programmed with the required time value. When the air resistance main board 331 moves a distance that causes the exhalation tube 31 to touch the metering resistance rings 46, it is detected by the sensors 47. At this time, the alarm screen 48 lights up. When the patient exhales for the designed time, the light on the alarm screen 48 goes out, thus reminding the patient that they can stop exhaling; the same applies when the patient inhales.

[0055] It is worth noting that the electrical components and program settings in the warning screen 48 and sensor 47 are all existing technologies.

[0056] The working principle of this invention is as follows: When in use, first rotate the two rotating rods 41 respectively, so that the rotating rods 41 move away from the air resistance main plate 331, thereby causing the rotating rods 41 to drive the positioning plate 45 to move synchronously, and adjusting the moving distance of the air resistance main plate 331 during exhalation and inhalation exercises.

[0057] When the mask 10 is placed over the mouth, the patient exhales, and the exhaled air enters the ventilation tube 20 through the mask 10, then flows into the expiratory tube 31. This causes the air resistance main plate 331 and the inhalation tube 32 to move together until the rear end of the inhalation tube 32 abuts against the metering ring 46, and the warning screen 48 illuminates. During this process, the pushing of the air overcomes the elastic force generated by the expiratory spring 332, causing the air resistance main plate 331 to move away from the rear end of the expiratory tube 31. The movement of the inhalation tube 32 toward the rear end of the ventilation tube 20 exposes the air outlet 24. The air passes sequentially through the air outlet 35, the air outlet 24, the ventilation chamber 21, and the expiratory through-hole 23, and finally enters the rear end of the ventilation tube 20 and flows to the outside. The patient then maintains the same exhalation intensity for a period of time until the warning screen 48 goes out, the exhalation stops, and the air resistance main plate 331 and the inhalation tube 32 return to their initial positions.

[0058] The patient begins to inhale, and the air inhaled from the outside through the ventilation tube 20 flows into the inhalation tube 32. This causes the air resistance main plate 331 and the expiratory tube 31 to move together until the front end of the expiratory tube 31 touches another metering resistance ring 46, at which point the warning screen 48 illuminates. During this process, the pushing of the air overcomes the elastic force generated by the inhalation spring 334, causing the air resistance main plate 331 to move away from the front end of the inhalation tube 32. The movement of the inhalation tube 32 towards the rear end of the ventilation tube 20 exposes the air inlet 25. The air passes sequentially through the air hole 35, the air inlet 25, the interior of the ventilation chamber 21, and the inhalation through-hole 22, finally entering the front end of the ventilation tube 20 and flowing into the mouth of the mask 10. The patient then maintains the same inhalation intensity for a period of time until the warning screen 48 goes out, at which point the inhalation stops, and the air resistance main plate 331 and the inhalation tube 32 return to their initial positions. This inhalation and exhalation exercise is repeated so that the intensity of each inhalation and exhalation exercise is the same.

[0059] When it is necessary to adjust the intensity of exhalation and inhalation, rotate the lever 41 so that the lever 41 moves the positioning plate 45 to the desired scale position.

[0060] The beneficial effects of this invention are as follows: This postoperative pulmonary rehabilitation training device adjusts the movement distance of the air resistance main board 331 by rotating the lever 41, so that the air resistance main board 331 is blocked after moving a certain distance during the patient's exhalation and inhalation exercises. This allows the patient to accurately grasp the intensity of each exhalation and inhalation, avoiding excessive or insufficient inhalation, thereby enabling the patient to achieve the required exhalation and inhalation intensity and facilitating the rapid recovery of lung function. Furthermore, the setting of the light emission time on the warning screen 48 allows the patient to accurately grasp the exercise time of each exhalation and inhalation, improving the training effect.

[0061] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A postoperative pulmonary rehabilitation training device, characterized in that, include: A cover, the cover being used to cover the patient's mouth; A ventilation tube is provided, the front end of which is threaded to the rear end of the cover. A ventilation cavity is provided inside the side wall of the ventilation tube along the axial direction. An inhalation passage and an exhalation passage are provided at the front end and the rear end of the inner wall of the ventilation tube, respectively. An impedance mechanism is provided inside the ventilation tube. The impedance mechanism includes an expiratory tube, an inspiratory tube, and an airlock. The outer walls of the expiratory and inspiratory tubes slide against the inner wall of the ventilation tube, and the expiratory and inspiratory tubes are symmetrically spaced. The expiratory tube is located on the side closest to the mask. The airlock is located between the expiratory and inspiratory tubes, with its two ends sealing the adjacent end faces of the expiratory and inspiratory tubes. Two symmetrically arranged baffle rings are fixed to the inner wall of the ventilation tube at the two ends of the airlock. Multiple air outlets and multiple air inlets are respectively opened on the inner wall of the ventilation tube corresponding to the positions of the inspiratory and expiratory tubes. An air-blocking ring is fixed inside the ventilation chamber corresponding to the position of the airlock. The airlock is moved by the patient's exhalation or inhalation, thereby connecting the air outlets with the interior of the ventilation tube or the air inlets with the interior of the ventilation tube. A metering component, which is used to control the movement distance of the gas resistance element.

2. The postoperative pulmonary rehabilitation training device according to claim 1, characterized in that: The air resistance component includes an air resistance main plate and an exhalation spring. The air resistance main plate is disposed between the exhalation tube and the inhalation tube. The diameter of the air resistance main plate is smaller than the outer diameter of the exhalation tube and larger than the inner diameter of the exhalation tube. An exhalation ring groove is formed on the rear end face of the exhalation tube. The exhalation spring is disposed in the exhalation ring groove, with one end of the exhalation spring fixedly connected to the inner wall of the exhalation ring groove and the other end fixedly connected to the side of the air resistance main plate facing the exhalation tube. The exhalation spring is always in a stretched state. Multiple air outlets are distributed in a ring array on the inner wall of the airway tube at the position corresponding to the outer front end of the inhalation tube.

3. The postoperative pulmonary rehabilitation training device according to claim 2, characterized in that: The air resistance component also includes an inhalation spring. An inhalation ring groove is provided on the front end face of the inhalation tube. The inhalation spring is disposed in the exhalation ring groove. One end of the exhalation spring is fixedly connected to the inner wall of the exhalation ring groove, and the other end is fixedly connected to the side of the air resistance main board facing the inhalation tube. The exhalation spring is always in a stretched state. Multiple air inlets are arranged in a ring array on the inner wall of the ventilation tube at the position corresponding to the outer rear end of the exhalation tube.

4. The postoperative pulmonary rehabilitation training device according to claim 3, characterized in that: The air resistance component also includes two hollow air resistance columns, which are fixedly connected to the two sides of the air resistance main board. The two air resistance columns are slidably inserted into the interior of the exhalation tube and the inhalation tube, respectively, and the outer walls of the two air resistance columns are slidably attached to the inner walls of the exhalation tube and the inhalation tube. Multiple through-holes are opened on the outer side of the ends of the two air resistance columns near the air resistance main board.

5. The postoperative pulmonary rehabilitation training device according to claim 1, characterized in that: The diameter of the air resistance main plate is smaller than the inner diameter of the septum ring, and the rear end face of the exhalation tube and the front end face of the inhalation tube respectively abut against the opposite sides of the two septum rings.

6. The postoperative pulmonary rehabilitation training device according to claim 1, characterized in that: The number of the metering components is two, which are respectively located at the front and rear ends inside the ventilation tube, and are used to control the movement distance of the expiratory tube and the inspiratory tube respectively.

7. The postoperative pulmonary rehabilitation training device according to claim 4, characterized in that: The metering component includes a rotating rod, a metering sliding ring, and a metering fixing ring. Sliding ring grooves are formed on both the front and rear inner walls of the ventilation tube. The metering sliding ring is slidably disposed within the sliding ring groove. The metering fixing ring is fixed to the inner wall of the sliding ring groove away from the air resistance component. A threaded sleeve is fixedly connected to the axis of the metering fixing ring via a connecting rod. A positioning plate is fixedly connected to the axis of the metering sliding ring via a connecting rod. One end of the rotating rod is threaded through the threaded sleeve and extends to abut against the positioning plate. Metering resistance rings are fixedly provided on the opposite sides of the two metering sliding rings. The sides of the two metering resistance rings can abut against the front face of the expiratory tube and the rear face of the inspiratory tube, respectively.

8. The postoperative pulmonary rehabilitation training device according to claim 7, characterized in that: The ventilation tube is made of transparent material, and there are scale lines on the outer wall of the front end and the outer wall of the rear end of the ventilation tube. The two scale lines are symmetrically arranged, and the zero mark of the two scale lines is flush with the front end of the expiratory tube and the rear end of the inspiratory tube, respectively.

9. A postoperative pulmonary rehabilitation training device according to claim 8, characterized in that: Sensors are provided on the sides of the two metering rings that are close to each other, and a warning screen is provided on the top side of the outer wall of the vent pipe. The warning screen is electrically connected to the sensor.

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