Respiratory rehabilitation assist device for medical pediatric department

Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to a medical pediatric respiratory rehabilitation assist device which comprises a shell and an air tap arranged on the side wall of the shell, a gas channel is formed in the bottom of the shell, one end of the air tap is in threaded connection with an air inlet of the gas channel, and the medical pediatric respiratory rehabilitation assist device further comprises a piston vertically arranged in the shell in a sliding mode. A reset spring is fixedly arranged between the top of the piston and the top of the shell. And the gas inlet pipe is fixedly arranged on the gas outlet of the gas channel. Through cooperation of gas quantity detection and an electromagnetic resistance applying mechanism, the movement resistance of the piston can be automatically adjusted according to the expiration quantity of a child, so that the training intensity is precisely matched with the respiratory capacity of the child, manual gear shifting is not needed, and the training effect and convenience are improved; meanwhile, the respiration counting mechanism can accurately record the training times, and data support is provided for evaluation; in addition, the humidifying and atomizing mechanism is automatically started to humidify inhaled air, the respiratory tract of the child is protected, and the cough risk is reduced.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, and in particular relates to a pediatric respiratory rehabilitation aid. Background Technology

[0002] With the development of medical technology, more and more pediatric patients are benefiting from respiratory rehabilitation training. Respiratory rehabilitation training can promote the recovery of respiratory function and improve the quality of life of pediatric patients. Therefore, the application of respiratory rehabilitation training aids is becoming more and more widespread. For example, announcement number: CN119280589A discloses a medical pediatric respiratory rehabilitation aid.

[0003] Most existing respiratory rehabilitation aids have different levels to adjust the training intensity. However, this method requires medical staff or parents to manually change the levels periodically. During rehabilitation training, children's respiratory capacity is constantly changing, especially as their condition improves and their respiratory function gradually strengthens. Because existing aids cannot track changes in the amount of air exhaled by children in real time, they cannot automatically adjust expiratory resistance based on the amount of air exhaled, making it difficult to accurately match the training intensity with the child's current respiratory capacity. For example, if a child's respiratory capacity improves during training, maintaining a lower resistance level will significantly reduce the training effect. Conversely, if a child's respiratory capacity temporarily decreases due to fatigue, and the aid remains at a high resistance level, it may cause excessive respiratory burden, leading to resistance and affecting the continuity and effectiveness of rehabilitation training.

[0004] In addition, children often exhale a large volume of air during respiratory rehabilitation training. This large volume of air exhalation can cause rapid loss of moisture from the respiratory tract. However, existing respiratory rehabilitation aids generally lack an effective moisture replenishment mechanism. When the respiratory tract is too dry, the normal function of the mucous membrane will be affected, the ciliary movement ability will decrease, and coughing will be easily triggered, which will seriously hinder the effect of rehabilitation training.

[0005] Therefore, a medical pediatric respiratory rehabilitation aid is proposed. Summary of the Invention

[0006] The purpose of this invention is to address the above-mentioned problems by providing a medical pediatric respiratory rehabilitation aid.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a pediatric respiratory rehabilitation aid, comprising a housing and an air nozzle disposed on the side wall of the housing, wherein a gas channel is provided at the bottom of the housing, and one end of the air nozzle is threadedly connected to the air inlet of the gas channel, and further comprising:

[0008] A piston is vertically slidably disposed inside the housing, and a return spring is fixedly provided between the top of the piston and the top of the housing; An intake pipe is fixedly installed at the outlet of the gas passage, and a first one-way valve is installed on the pipe wall of the intake pipe. An exhaust pipe is fixedly installed on the side wall of the housing, and a second one-way valve is provided on the pipe wall of the exhaust pipe; The gas quantity detection mechanism is installed on the inner wall of the vertical part of the gas channel; An electromagnetic resistance mechanism is located between the top inner wall of the housing and the upper surface of the piston. The respiration counting mechanism is located inside the gas volume detection mechanism; A humidifying atomizing mechanism is fixedly installed on the top of the housing, and a humidity sensor is fixedly embedded in the outer wall of the housing; The PLC controller is fixedly embedded on the outer wall of the housing. The gas quantity detection mechanism, electromagnetic resistance mechanism, respiration counting mechanism, humidification atomization mechanism and humidity sensor are all electrically connected to the PLC controller.

[0009] Preferably, the gas quantity detection mechanism includes a fixed sleeve fixedly disposed on the inner wall of the gas channel, and an adhesive fixing ring is fixedly disposed at the inner edge of the opening of the fixed sleeve, and a gas pressure film that blocks the opening of the fixed sleeve is adhesively fixedly disposed on one side of the adhesive fixing ring.

[0010] Preferably, the electromagnetic resistance mechanism includes a sleeve fixedly disposed on the inner wall of the top of the housing, a connecting rod slidably disposed inside the sleeve, the lower end of the connecting rod being fixedly connected to the upper surface of the piston, a resistance electromagnetic block fixedly disposed on the inner wall of the sleeve, and a resistance permanent magnet block fixedly disposed at the upper end of the connecting rod, and the resistance permanent magnet block being slidably disposed inside the sleeve.

[0011] Preferably, the respiratory counting mechanism includes a bracket fixedly mounted on the inner wall of the fixed sleeve, an elastic telescopic rod slidably mounted on one side of the bracket, a contact head fixedly mounted on one end of the elastic telescopic rod, a plurality of evenly distributed elastic connecting ropes fixedly mounted between the rod wall of the elastic telescopic rod and the inner wall of the bracket, a touch switch fixedly mounted on the inner side wall of the fixed sleeve at a position corresponding to one end of the elastic telescopic rod, and a pulse counter fixedly mounted on the inner side wall of the fixed sleeve.

[0012] Preferably, the elastic telescopic rod is an insulated square rod, the side wall of the bracket is provided with a square hole that matches the wall of the elastic telescopic rod, and the side of the contact head facing the gas pressure film is provided with an arc-shaped chamfer.

[0013] Preferably, the humidifying atomizing mechanism includes a water tank fixedly disposed on the top of the housing, a water pump fixedly disposed inside the water tank, a first water pipe fixedly disposed at the output end of the water pump extending to the outside of the water tank, a protective cover fixedly disposed on the outer wall of the water tank, a second water pipe fixedly disposed longitudinally inside the protective cover, the end of the first water pipe away from the water tank being fixedly connected to the pipe wall of the second water pipe, and a plurality of evenly distributed atomizing nozzles fixedly disposed on the lower side of the pipe wall of the second water pipe.

[0014] Preferably, a liquid level sensor is fixedly installed on the inner wall of the water storage tank, and a water filling pipe is fixedly installed on the top of the water storage tank, with a pipe cap threaded onto the upper end of the water filling pipe.

[0015] Preferably, a U-shaped handle is fixedly provided on the side of the housing away from the PLC controller, and an anti-slip rubber sleeve is fixedly provided on the outside of the U-shaped handle.

[0016] Compared with existing technologies, the advantages of this invention are as follows: 1. Through the gas volume detection mechanism and electromagnetic resistance mechanism, the piston's upward resistance can be automatically adjusted according to the child's exhalation volume. The gas pressure diaphragm in the gas volume detection mechanism deforms under gas compression, changing its resistance. The change in current signal is fed back to the PLC controller, which in turn controls the electromagnetic resistance mechanism to adjust the resistance. When the exhalation volume is large, the piston moves downward, reducing the internal gas volume and increasing the blowing resistance; when the exhalation volume is small, the piston moves upward, increasing the internal gas volume and reducing the blowing resistance. In this way, the training intensity can be accurately matched to the child's current breathing capacity without the need for manual shifting, improving the training effect and convenience, and ensuring the continuity and effectiveness of the training.

[0017] 2. Through the set breathing counting mechanism, when the gas compresses the gas pressure film and causes it to bulge and contact the contact head, the contact head drives the elastic telescopic rod to move, triggering the touch switch. The generated pulse signal is received and counted by the pulse counter and fed back to the PLC controller for display on the screen. This design can accurately record the number of times children breathe during training, providing accurate data support for medical staff to evaluate the effect of rehabilitation training.

[0018] 3. Through the humidification atomization mechanism and humidity sensor, when the number of breath training sessions for the child reaches the set value, the PLC controller automatically starts the water pump, spraying water from the water tank through the atomizing nozzle to humidify the air above the air nozzle. The humidified air is inhaled by the child, which can moisten the respiratory tract, improve ciliary movement, and reduce the risk of coughing. At the same time, the humidity sensor monitors the air humidity in real time and feeds it back to the PLC controller to keep the air humidity within a suitable range, protect the child's respiratory health, and ensure that the breathing training continues to be effective. Attached Figure Description

[0019] Figure 1 This is a perspective view of a pediatric respiratory rehabilitation aid provided by the present invention; Figure 2 This is a schematic diagram of the internal structure of a medical pediatric respiratory rehabilitation aid provided by the present invention; Figure 3 This is a schematic diagram of the gas volume detection mechanism and respiratory counting mechanism of a medical pediatric respiratory rehabilitation aid provided by the present invention; Figure 4 This is a perspective view of a fixation sleeve and a gas pressure membrane for a pediatric respiratory rehabilitation aid provided by the present invention; Figure 5 This is a schematic diagram of the electromagnetic resistance mechanism of a pediatric respiratory rehabilitation aid provided by the present invention; Figure 6 This is a schematic diagram of the humidification and nebulization mechanism of a medical pediatric respiratory rehabilitation aid provided by the present invention.

[0020] In the diagram: 1. Housing, 2. Nozzle, 3. Gas passage, 4. Piston, 5. Return spring, 6. Inlet pipe, 7. First one-way valve, 8. Outlet pipe, 9. Second one-way valve, 10. Gas volume detection mechanism, 101. Fixing sleeve, 102. Adhesive fixing ring, 103. Gas pressure diaphragm, 11. Electromagnetic resistance mechanism, 111. Sleeve, 112. Connecting rod, 113. Resistance solenoid block, 114. Resistance permanent magnet block, 12. Breath counting mechanism, 121. Bracket, 122. Elastic telescopic rod, 123. Contact head, 124. Elastic connecting rope, 125. Touch switch, 126. Pulse counter, 13. Humidification atomizing mechanism, 131. Water tank, 132. Water pump, 133. First water pipe, 134. Protective cover, 135. Second water pipe, 136. Atomizing nozzle, 137. Liquid level sensor, 138. Water supply pipe, 14. Humidity sensor, 15. PLC controller, 16. U-shaped grip, 17. Anti-slip rubber sleeve. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0022] like Figures 1-6As shown, a pediatric respiratory rehabilitation aid includes a housing 1 and an air nozzle 2 disposed on the side wall of the housing 1. A gas channel 3 is provided at the bottom of the housing 1. One end of the air nozzle 2 is threadedly connected to the air inlet of the gas channel 3, allowing the air nozzle 2 to be rotated and disassembled. The device also includes a piston 4, vertically slidingly disposed inside the housing 1, with a return spring 5 fixedly disposed between the top of the piston 4 and the top of the housing 1; and an air inlet pipe 6, fixedly disposed at the air outlet of the gas channel 3, with a first one-way valve 7 disposed on the pipe wall of the air inlet pipe 6. The first one-way valve 7 can prevent air from entering the housing. The gas flows back into the interior of the gas channel 3; the outlet pipe 8 is fixedly installed on the side wall of the housing 1, and the pipe wall of the outlet pipe 8 is provided with a second one-way valve 9, which can prevent external gas from flowing back into the interior of the housing 1; when the child patient puts the mouthpiece 2 in his mouth, he inhales through his nose and then exhales through his mouth into the interior of the mouthpiece 2. The exhaled gas flows into the interior of the housing 1 through the gas channel 3 and the inlet pipe 6, causing the piston 4 to move upward against the elastic force of the return spring 5 inside the housing 1. At the same time, the gas inside the housing 1 will be discharged outward through the outlet pipe 8.

[0023] The gas quantity detection mechanism 10 is disposed on the inner wall of the vertical part of the gas channel 3. The gas quantity detection mechanism 10 includes a fixed sleeve 101 fixedly disposed on the inner wall of the gas channel 3. An adhesive fixing ring 102 is fixedly disposed at the inner edge of the opening of the fixed sleeve 101. A gas pressure film 103 is bonded and fixedly disposed on one side of the adhesive fixing ring 102 to block the opening of the fixed sleeve 101. When the gas passes through the inside of the gas channel 3, it will squeeze the surface of the gas pressure film 103, causing the gas pressure film 103 to bulge into the inside of the fixed sleeve 101 and deform. The gas pressure film 103 is made of semiconductor material. When it is squeezed and deformed, the internal lattice changes and affects the movement of electrons, resulting in a change in conductivity and an increase in resistance.

[0024] An electromagnetic resistance mechanism 11 is disposed between the top inner wall of the housing 1 and the upper surface of the piston 4. The electromagnetic resistance mechanism 11 includes a sleeve 111 fixedly disposed on the top inner wall of the housing 1. A connecting rod 112 is slidably disposed inside the sleeve 111. The lower end of the connecting rod 112 is fixedly connected to the upper surface of the piston 4. A resistance electromagnetic block 113 is fixedly disposed on the inner wall of the sleeve 111. A resistance permanent magnet block 114 is fixedly disposed at the upper end of the connecting rod 112 and is slidably disposed inside the sleeve 111. When the resistance electromagnetic block 113 is energized, the repulsive magnetic force generated by itself increases and pushes the resistance permanent magnet block 114 to move downward. The resistance permanent magnet block 114 will drive the piston 4 to move downward against the elastic force of the return spring 5, thereby reducing the volume between the piston 4 and the inside of the housing 1 and increasing the air blowing resistance. When the resistance electromagnetic block 113 is de-energized, the return spring 5 applies an upward elastic force to the piston 4 and drives it to return to its original position, so that the volume between the piston 4 and the inside of the housing 1 is restored.

[0025] A breath counting mechanism 12 is disposed inside the gas volume detection mechanism 10. The breath counting mechanism 12 includes a bracket 121 fixedly disposed on the inner wall of the fixed sleeve 101. An elastic telescopic rod 122 is slidably disposed laterally on one side of the bracket 121. A contact head 123 is fixedly disposed at one end of the elastic telescopic rod 122. A plurality of evenly distributed elastic connecting ropes 124 are fixedly disposed between the rod wall of the elastic telescopic rod 122 and the inner wall of the bracket 121. A touch switch 125 is fixedly disposed on the inner side wall of the fixed sleeve 101 at a position corresponding to one end of the elastic telescopic rod 122. A pulse counter 126 is fixedly disposed on the inner side wall of the fixed sleeve 101. When gas passes through the gas channel 3, it will compress the surface of the gas pressure film 103, causing the gas pressure film 103 to bulge into the interior of the fixed sleeve 101 and contact the contact head 123. This causes the contact head 123 to drive the elastic telescopic rod 122 to overcome the elasticity of the elastic connecting ropes 124. The force moves the elastic telescopic rod 122 until one end contacts the button of the touch switch 125. The touch switch 125 generates an electrical signal, which can be received as a pulse signal by the pulse counter 126. After receiving the signal, the pulse counter 126 completes a count according to its internal logic and settings. The elastic telescopic rod 122 is an insulated square rod. The side wall of the bracket 121 is provided with a square hole that matches the rod wall of the elastic telescopic rod 122. The elastic telescopic rod 122 is composed of two mutually adjustable square rods, and a telescopic spring (not shown in the figure) is provided between the two square rods. The elastic telescopic rod 122 avoids the phenomenon of squeezing and damaging the touch switch 125. The square structure design prevents the elastic telescopic rod 122 from rotating on the bracket 121. The side of the contact head 123 facing the gas pressure film 103 is provided with an arc-shaped chamfer, which can avoid the phenomenon of squeezing and damaging the gas pressure film 103.

[0026] A humidifying atomizing mechanism 13 is fixedly mounted on the top of the housing 1. A humidity sensor 14 is fixedly embedded in the outer wall of the housing 1. The humidifying atomizing mechanism 13 includes a water tank 131 fixedly mounted on the top of the housing 1. A water pump 132 is fixedly mounted inside the water tank 131. A first water pipe 133 extending to the outside of the water tank 131 is fixedly mounted at the output end of the water pump 132. A protective cover 134 is fixedly mounted on the outer wall of the water tank 131. A second water pipe 135 is fixedly mounted longitudinally inside the protective cover 134. The end of the first water pipe 133 away from the water tank 131 is fixedly connected to the wall of the second water pipe 135. A [missing information - likely a device or material] is fixedly mounted on the lower side of the wall of the second water pipe 135. Multiple evenly distributed atomizing nozzles 136, and the operation of the water pump 132 can discharge water from the water storage tank 131 into the first water pipe 133 and the second water pipe 135, and then spray it out evenly through the multiple atomizing nozzles 136. After the water is sprayed out, it will come into contact with the gas above the air nozzle 2, so that the gas is humidified. A liquid level sensor 137 is fixedly installed on the inner side wall of the water storage tank 131, and a water filling pipe 138 is fixedly installed on the top of the water storage tank 131. The upper end of the water filling pipe 138 is threaded with a pipe cap. The liquid level sensor 137 can detect the water level inside the water storage tank 131 in real time. If the water level drops to the lowest level, the liquid level sensor 137 can detect the signal.

[0027] The PLC controller 15 is fixedly embedded in the outer wall of the housing 1. The gas volume detection mechanism 10, the electromagnetic resistance mechanism 11, the breath counting mechanism 12, the humidification and atomization mechanism 13, and the humidity sensor 14 are all electrically connected to the PLC controller 15. A U-shaped handle 16 is fixedly provided on the side of the housing 1 away from the PLC controller 15. An anti-slip rubber sleeve 17 is fixedly provided on the outside of the U-shaped handle 16. The anti-slip rubber sleeve 17 can increase the frictional resistance between the hand and the U-shaped handle 16, increase the gripping effect of the U-shaped handle 16, and make the housing 1 stable to be picked up.

[0028] The operating principle of the present invention is described as follows: Medical staff first take a new air nozzle 2 and then tighten it in the hole on the side wall of the housing 1. Then, they explain in detail to the child patient and the parents how to use the breathing trainer. During the training process, the child patient or the parents hold the U-shaped handle 16 tightly with their hands and let the child patient put the air nozzle 2 in their mouth and breathe evenly. Parents or medical staff manually operate the PLC controller 15 to turn on the device's power. The child patient inhales through the nose while holding the air nozzle 2 in their mouth, then exhales through the mouth into the air nozzle 2. The exhaled air flows into the housing 1 through the gas channel 3 and the air inlet pipe 6. Simultaneously, the gas inside the gas channel 3 deforms the gas pressure diaphragm 103, increasing its resistance (the gas pressure diaphragm 103 is made of semiconductor material; when deformed, the internal lattice changes, affecting electron movement and causing a change in conductivity and increased resistance). The current in the gas pressure diaphragm 103 decreases in the circuit. The magnitude of the current signal can be detected by measuring circuits on both sides of the gas pressure diaphragm 103. The current signal decreases as the deformation of the gas pressure diaphragm 103 increases. This electrical signal is amplified and filtered before being sent to the PLC controller 15. At this time, the PLC controller 15 connects the power supply to the resistive permanent magnet 114 through the control circuit. Simultaneously, the PLC controller 15 gradually increases the power of the resistive permanent magnet 114 according to the strength of the feedback electrical signal, causing the repulsive magnetic field generated by the resistive permanent magnet 113 to... The increased force pushes the resisting permanent magnet 114 downwards, causing the piston 4 to move downwards against the spring force of the return spring 5. This reduces the volume between the piston 4 and the interior of the housing 1. According to the continuity equation (flow rate = velocity × area), the velocity increases as the cross-sectional area decreases. According to Bernoulli's equation, increased velocity leads to decreased pressure, requiring a larger pressure difference (i.e., blowing resistance) to maintain airflow. In other words, the greater the expiratory volume of the child patient, the greater the downward movement of the piston 4, resulting in a smaller gas volume inside the housing 1 and greater blowing resistance. The smaller the piston 4 moves downward, the larger the gas volume inside the shell 1, and the smaller the blowing resistance. This allows the piston 4 to move a distance (i.e., blowing resistance) adaptively according to the amount of exhalation of the child patient, thereby adjusting the intensity of the child patient's breathing training. This ensures that the training intensity is precisely matched with the child patient's current breathing capacity, eliminating the need for different settings. The operation is more convenient, the training is more continuous and effective, and the results are greatly improved. The gas inhaled into the shell 1 passes between the piston 4 and the shell 1 and is finally discharged out through the outlet pipe 8. When the gas pressure diaphragm 103 is deformed by gas compression, it bulges into the fixed sleeve 101 and contacts the contact head 123. This causes the contact head 123 to drive the elastic telescopic rod 122 to move against the elastic force of the elastic connecting rope 124 until one end of the elastic telescopic rod 122 contacts the button of the touch switch 125. This causes the circuit state inside the touch switch 125 to change, usually from an open state to a closed state. This change in state generates an electrical signal, which can be received by the pulse counter 126 as a pulse signal. After receiving the signal, the pulse counter 126 completes a count according to its internal logic and settings. At the same time, the pulse counter 126 feeds back an electrical signal to the PLC controller 15 and increments the number on the display screen by 1, thus completing the count of one breathing training session. When the number of breathing exercises for the child reaches a certain value, the PLC controller 15 will automatically control and turn on the water pump 132. The water pump 132 drains the water from the water tank 131 into the first water pipe 133 and the second water pipe 135, and then sprays it evenly through multiple atomizing nozzles 136. After the water is sprayed out, it comes into contact with the air above the nozzle 2, thus humidifying the air (for example, when the number of breathing exercises reaches 10, the PLC controller 15 will turn on the water pump 132). The humidified air is then inhaled into the child's nose, which moistens the child's respiratory tract, improves the movement of cilia in the respiratory tract, and reduces the possibility of coughing, thereby ensuring that the child can continue to breathe effectively. When the water humidifies the air above the nozzle 2... The humidity sensor 14 can detect the humidity of the gas in real time and feed the detected value back to the PLC controller 15. This ensures that the humidity of the gas is maintained within a certain range, which will stop the water pump 132 from working (the air humidity is maintained at 40%-60%). If the humidity is too low during breathing training, it will cause the respiratory mucosa to lose moisture, become dry and damaged, affect the function of the mucociliary system, and be unable to effectively expel foreign objects, increasing the risk of respiratory infection and potentially inducing respiratory diseases. This will make children feel short of breath during training and affect the training effect. On the other hand, if the humidity is too high, it will promote the growth of microorganisms, causing respiratory infections and allergic reactions. It will also make the air stuffy and hot, causing shortness of breath. At the same time, it may make it difficult for human sweat to evaporate, causing electrolyte imbalance, which will also have an adverse effect on children's breathing training and physical health. Repeat the above process. When the count reaches a certain value, the parent or medical staff should inform the child to stop the training and turn off the power to the device. Then, remove the air nozzle 2 for recycling.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pediatric respiratory rehabilitation aid, comprising a housing (1) and an air nozzle (2) disposed on the side wall of the housing (1), wherein the bottom of the housing (1) is provided with a gas channel (3), and one end of the air nozzle (2) is threadedly connected to the air inlet of the gas channel (3), characterized in that, Also includes: The piston (4) is vertically slidably disposed inside the housing (1), and a return spring (5) is fixed between the top of the piston (4) and the top of the housing (1). An air inlet pipe (6) is fixedly installed at the outlet of the gas channel (3), and a first one-way valve (7) is provided on the pipe wall of the air inlet pipe (6). An exhaust pipe (8) is fixedly installed on the side wall of the housing (1), and a second one-way valve (9) is provided on the pipe wall of the exhaust pipe (8). The gas quantity detection mechanism (10) is installed on the inner wall of the vertical part of the gas channel (3); An electromagnetic resistance mechanism (11) is disposed between the top inner wall of the housing (1) and the upper surface of the piston (4); The respiratory counting mechanism (12) is located inside the gas volume detection mechanism (10); A humidifying atomizing mechanism (13) is fixedly installed on the top of the housing (1), and a humidity sensor (14) is fixedly embedded in the outer wall of the housing (1). The PLC controller (15) is fixedly embedded on the outer wall of the housing (1). The gas quantity detection mechanism (10), electromagnetic resistance mechanism (11), respiratory counting mechanism (12), humidification atomization mechanism (13) and humidity sensor (14) are all electrically connected to the PLC controller (15).

2. The pediatric respiratory rehabilitation aid according to claim 1, characterized in that, The gas quantity detection mechanism (10) includes a fixed sleeve (101) fixedly installed on the inner wall of the gas channel (3). An adhesive fixing ring (102) is fixedly provided at the inner edge of the opening of the fixed sleeve (101). A gas pressure film (103) is bonded and fixedly provided on one side of the adhesive fixing ring (102) to block the opening of the fixed sleeve (101).

3. The pediatric respiratory rehabilitation aid according to claim 1, characterized in that, The electromagnetic resistance mechanism (11) includes a sleeve (111) fixedly disposed on the inner wall of the top of the housing (1). A connecting rod (112) is slidably disposed inside the sleeve (111). The lower end of the connecting rod (112) is fixedly connected to the upper surface of the piston (4). A resistance electromagnetic block (113) is fixedly disposed on the inner wall of the sleeve (111). A resistance permanent magnet block (114) is fixedly disposed at the upper end of the connecting rod (112), and the resistance permanent magnet block (114) is slidably disposed inside the sleeve (111).

4. A pediatric respiratory rehabilitation aid according to claim 2, characterized in that, The respiratory counting mechanism (12) includes a bracket (121) fixedly mounted on the inner wall of the fixed sleeve (101). An elastic telescopic rod (122) is slidably mounted on one side of the bracket (121). A touch head (123) is fixedly mounted on one end of the elastic telescopic rod (122). A plurality of evenly distributed elastic connecting ropes (124) are fixedly mounted between the rod wall of the elastic telescopic rod (122) and the inner wall of the bracket (121). A touch switch (125) is fixedly mounted on the inner wall of the fixed sleeve (101) at a position corresponding to one end of the elastic telescopic rod (122). A pulse counter (126) is fixedly mounted on the inner wall of the fixed sleeve (101).

5. A pediatric respiratory rehabilitation aid according to claim 4, characterized in that, The elastic telescopic rod (122) is an insulated square rod, and the side wall of the bracket (121) is provided with a square hole that matches the rod wall of the elastic telescopic rod (122). The contact head (123) is provided with an arc-shaped chamfer on the side facing the gas pressure film (103).

6. A pediatric respiratory rehabilitation aid according to claim 1, characterized in that, The humidification atomizing mechanism (13) includes a water tank (131) fixedly installed on the top of the housing (1). A water pump (132) is fixedly installed inside the water tank (131). A first water pipe (133) extending to the outside of the water tank (131) is fixedly installed at the output end of the water pump (132). A protective cover (134) is fixedly installed on the outer wall of the water tank (131). A second water pipe (135) is fixedly installed longitudinally inside the protective cover (134). The end of the first water pipe (133) away from the water tank (131) is fixedly connected to the pipe wall of the second water pipe (135). A plurality of evenly distributed atomizing nozzles (136) are fixedly installed on the lower side of the pipe wall of the second water pipe (135).

7. A pediatric respiratory rehabilitation aid according to claim 6, characterized in that, A liquid level sensor (137) is fixedly installed on the inner wall of the water storage tank (131), and a water filling pipe (138) is fixedly installed on the top of the water storage tank (131), with a pipe cap threaded on the upper end of the water filling pipe (138).

8. A pediatric respiratory rehabilitation aid according to claim 1, characterized in that, A U-shaped handle (16) is fixedly provided on the side of the housing (1) away from the PLC controller (15), and an anti-slip rubber sleeve (17) is fixedly provided on the outside of the U-shaped handle (16).

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