A medical heated nebulizer with breathing training function

Abstract

This invention belongs to the field of medical device technology, and specifically relates to a medical heated nebulizer with respiratory training function. It includes a nebulizer cup assembly, a mask, and a controller, and further includes a housing disposed between the nebulizer cup assembly and the mask. One end of the housing is fixedly connected to an inhalation inlet tube detachably connected to the outlet end of the nebulizer cup assembly, and the other end of the housing away from the inhalation inlet tube is fixedly connected to an inhalation outlet tube detachably connected to the inhalation end of the mask. The controller is fixed to the outer wall of the housing. This invention can assist patients in training their respiratory rate, improve the effect of nebulization therapy, reduce the temperature difference between the nebulized medication and the body, avoid irritation of the respiratory mucosa causing discomfort such as choking and dry throat, and cool the patient's exhaled air to ensure the accuracy of flow rate detection. It can also disinfect and sterilize the exhaled air, absorb residual nebulized medication, and prevent indoor air pollution.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, and in particular relates to a medical heated nebulizer with respiratory training function. Background Technology

[0002] Traditional drug delivery methods are slow to take effect and have poor targeting. Nebulized inhalation devices can atomize liquid drugs into micron-sized aerosol particles, which can be delivered directly to the patient's body through the respiratory tract. They are often used for perioperative airway management in thoracic surgery to improve the patient's ventilation and help with postoperative airway recovery.

[0003] During nebulization therapy, patients need to inhale slowly and deeply through their mouths, hold their breath briefly at the end of inhalation, and then exhale slowly until the medication is completely inhaled. However, the rate of inhalation and exhalation depends solely on the patient's own control, lacking standardized guidance and assisted restraint. This makes it difficult to accurately match the ideal rhythm required for treatment, resulting in uneven inhalation and exhalation rates and insufficient breath-holding. Consequently, the effective deposition of the medication in the airways is affected, reducing the efficacy of nebulization and hindering respiratory rehabilitation training during the perioperative period of thoracic surgery. Summary of the Invention

[0004] The purpose of this invention is to address the above-mentioned problems by providing a medical heated nebulizer with a breathing training function.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a medical heated nebulizer with respiratory training function, comprising a nebulizer cup assembly, a mask, and a controller, and further comprising: The box body is disposed between the atomizing cup assembly and the mask. One end of the box body is fixedly connected to an air intake pipe that is detachably connected to the air outlet end of the atomizing cup assembly. The other end of the box body away from the air intake pipe is fixedly connected to an air outlet pipe that is detachably connected to the air inlet end of the mask. The controller is fixed to the outer wall of the box body. A constant temperature thermal flow rate probe is fixedly inserted into the top of the box, and the detection end of the constant temperature thermal flow rate probe is located inside the box. A voice prompt device is fixed on the outer wall of the box, and the controller controls the voice prompt device to work according to the electrical signal fed back by the constant temperature thermal flow rate probe. An exhalation recirculation unit is located between the mask and the housing, and the exhalation recirculation unit introduces the patient's exhaled air into the housing and then discharges it.

[0006] Preferably, the exhalation recirculation unit includes a connecting tube, which is detachably connected to the outlet end of the mask. A flexible tube is fixedly connected to the connecting tube. An exhalation inlet tube is fixedly inserted into the side wall of the housing, and a heat dissipation component is connected between the flexible tube and the exhalation inlet tube. The exhalation inlet tube is positioned between the constant temperature thermal flow probe and the inhalation inlet tube. An exhalation outlet tube is fixedly inserted into the bottom of the housing, and is positioned between the constant temperature thermal flow probe and the inhalation outlet tube. An inhalation electric control valve is installed inside both the inhalation inlet tube and the inhalation outlet tube, and an exhalation electric control valve is installed inside both the exhalation inlet tube and the exhalation outlet tube. Both the inhalation electric control valve and the exhalation electric control valve are electrically connected to the controller.

[0007] Preferably, the heat dissipation assembly includes a square tube connected to the exhalation inlet pipe, with a set of heat dissipation fins fixedly inserted at both the upper and lower ends of the square tube, and the two sets of heat dissipation fins being staggered from each other, and the flexible tube being connected to the interior of the square tube.

[0008] Preferably, a respiratory sensor assembly is fixedly connected between the hose and the connecting tube, and the controller controls the operation of the inhalation and exhalation electronic control valves based on the electrical signals fed back by the respiratory sensor assembly.

[0009] Preferably, a temperature detection probe is fixedly inserted at the top of the box body, between the air intake pipe and the constant temperature thermal flow probe, and the detection end of the temperature detection probe is located inside the box body. The temperature detection probe is electrically connected to the controller.

[0010] Preferably, an insulating frame is fixedly connected to the inside of the box near the air intake and exhaust pipe, and an electric heating mesh is fixed inside the insulating frame. The electric heating mesh is electrically connected to the controller.

[0011] Preferably, the outlet end of the exhalation tube is fixedly connected to an exhaust pipe, a connecting block is fixed inside the exhalation tube, and an ultraviolet disinfection lamp tube coaxial with the exhaust pipe is fixed at the bottom of the connecting block, and the ultraviolet disinfection lamp tube is electrically connected to the controller.

[0012] Preferably, the outer wall of the exhaust pipe is threaded with a cylinder, and the inside of the cylinder is filled with adsorption filler, and the bottom of the cylinder has several air outlet holes.

[0013] Compared with existing technologies, the advantages of a medical heated nebulizer with breathing training function are: 1. The device uses a nebulizer cup assembly and mask to deliver nebulized medication to patients. The controller, housing, inhalation inlet tube, inhalation outlet tube, constant-temperature thermal flow probe, voice prompt, and expiratory recirculation unit work together to monitor the patient's inhalation and exhalation rates in real time via the constant-temperature thermal flow probe. The probe alerts the patient when the rate is too fast, helping them train their breathing rate and indirectly improving the therapeutic effect of nebulization. Furthermore, the constant-temperature thermal flow probe appropriately heats the nebulized medication, reducing the temperature difference between the medication and the patient's body, minimizing the risk of respiratory tract irritation such as coughing, dry throat, and other discomfort caused by excessive temperature differences.

[0014] 2. The heat dissipation component can cool down the patient's exhaled air, preventing the temperature difference between the patient's exhaled air and the constant temperature thermal flow probe from being too small and affecting the detection accuracy.

[0015] 3. Through the coordinated use of the exhaust pipe, ultraviolet disinfection lamp, cylinder, and adsorption packing, the patient's exhaled air can be disinfected and sterilized, and any atomized medication that may be carried in the exhaled air can be adsorbed, thereby minimizing the impact of any atomized medication that may escape into the indoor air environment. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a medical heated nebulizer with respiratory training function provided by the present invention; Figure 2 This is a schematic diagram of the back structure of a medical heated nebulizer with breathing training function provided by the present invention; Figure 3 This is a schematic diagram of the internal structure of the housing of a medical heated nebulizer with respiratory training function provided by the present invention; Figure 4 This is a schematic diagram of the internal structure of the inhalation tube of a medical heated nebulizer with respiratory training function provided by the present invention; Figure 5 This is a schematic diagram of the internal structure of the exhaust pipe and cylinder of a medical heated nebulizer with respiratory training function provided by the present invention; Figure 6 This is a schematic diagram of the bottom structure of a cylindrical medical heating nebulizer with respiratory training function provided by the present invention; Figure 7 This is a schematic diagram of the heat dissipation component of a medical heating atomizing device with breathing training function provided by the present invention.

[0017] In the diagram: 1. Nebulizer cup assembly, 2. Mask, 3. Controller, 4. Box body, 5. Inhalation inlet tube, 6. Inhalation outlet tube, 7. Constant temperature thermal flow probe, 8. Voice prompter, 9. Exhalation recirculation unit, 91. Connecting tube, 92. Flexible tube, 93. Exhalation inlet tube, 94. Exhalation outlet tube, 95. Inhalation electric control valve, 96. Exhalation electric control valve, 10. Heat dissipation assembly, 101. Square tube, 102. Heat dissipation fins, 11. Breathing sensor assembly, 12. Temperature detection probe, 13. Insulating frame, 14. Electric heating mesh, 15. Exhaust pipe, 16. Connecting block, 17. Ultraviolet disinfection lamp tube, 18. Cylinder, 19. Adsorption filler, 20. Air outlet. Detailed Implementation

[0018] 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.

[0019] like Figures 1-7 As shown, a medical heated nebulizer with breathing training function includes a nebulizer cup assembly 1, a mask 2, and a controller 3. It also includes a housing 4, which is positioned between the nebulizer cup assembly 1 and the mask 2. One end of the housing 4 is fixedly connected to an inhalation inlet tube 5, which is detachably connected to the outlet end of the nebulizer cup assembly 1. The other end of the housing 4, away from the inhalation inlet tube 5, is fixedly connected to an inhalation outlet tube 6, which is detachably connected to the inlet end of the mask 2. The controller 3 is fixed to the outer wall of the housing 4. A constant-temperature thermal flow probe 7 is fixedly inserted into the top of the housing 4, with its detection end located inside the housing 4. A voice prompt device 8 is fixed to the outer wall of the housing 4. The controller 3 controls the voice prompt device 8 to operate based on the electrical signal fed back by the constant-temperature thermal flow probe 7. The prompts on the voice prompt device 8 can be preset, and its main function is to remind the patient to slow down their breathing rate.

[0020] An expiratory recirculation unit 9 is positioned between the mask 2 and the housing 4. The expiratory recirculation unit 9 draws the patient's exhaled air into the housing 4 and then discharges it. The expiratory recirculation unit 9 includes a connecting tube 91, which is detachably connected to the outlet end of the mask 2. A flexible tube 92 is fixedly connected to the connecting tube 91. An expiratory inlet tube 93 is fixedly inserted into the side wall of the housing 4, and a heat dissipation component 10 connects the flexible tube 92 and the expiratory inlet tube 93. The expiratory inlet tube 93 is positioned between the constant-temperature thermal flow probe 7 and the inspiratory inlet tube 5. An expiratory outlet tube 94 is fixedly inserted into the bottom of the housing 4, and is positioned between the constant-temperature thermal flow probe 7 and the inspiratory outlet tube 6. The inspiratory inlet tube 5 and the inspiratory outlet tube 6... The inhalation control valve 95 is installed inside each of the inhalation inlet pipe 93 and the inhalation outlet pipe 94. The inhalation control valve 95 and the inhalation control valve 96 are both electrically connected to the controller 3. The heat dissipation assembly 10 includes a square tube 101 connected to the inhalation inlet pipe 93. A set of heat dissipation fins 102 are fixedly inserted into both the upper and lower ends of the square tube 101, and the two sets of heat dissipation fins 102 are staggered. The hose 92 is connected to the inside of the square tube 101. Through the square tube 101 and the heat dissipation fins 102, heat exchange can be carried out with the patient's exhaled gas, which helps to cool down the patient's exhaled gas and avoids the temperature of the patient's exhaled gas from being close to the probe temperature of the constant temperature thermal flow probe 7, which would affect the detection accuracy.

[0021] A respiratory sensor assembly 11 is fixedly connected between the hose 92 and the connecting tube 91. The controller 3 controls the operation of the inhalation control valve 95 and the expiration control valve 96 based on the electrical signal fed back by the respiratory sensor assembly 11. The respiratory sensor assembly 11 includes at least a mounting housing and a respiratory sensor. Both the hose 92 and the connecting tube 91 are connected to the mounting housing.

[0022] A temperature detection probe 12 is fixedly inserted at the top of the housing 4, between the intake pipe 5 and the constant temperature thermal flow probe 7. The detection end of the temperature detection probe 12 is located inside the housing 4. The temperature detection probe 12 is electrically connected to the controller 3. The temperature detection probe 12 can detect the temperature of the gas that is about to flow through the constant temperature thermal flow probe 7, thereby enabling temperature compensation for the constant temperature thermal flow probe 7 and preventing the different temperatures of the flowing gas from affecting the accuracy of the detection of the constant temperature thermal flow probe 7.

[0023] An insulating frame 13 is fixedly connected to the inside of the box 4 near the air intake and exhaust pipe 6. An electric heating mesh 14 is fixed inside the insulating frame 13. The electric heating mesh 14 is electrically connected to the controller 3. The heating temperature of the electric heating mesh 14 is 38℃±1℃, which ensures that all atomized liquid passing through the inside of the box 4 is heated evenly, avoiding the limited heating range of the constant temperature thermal flow probe 7, which would cause the temperature of some atomized liquid to remain too low.

[0024] The outlet end of the exhalation tube 94 is fixedly connected to the exhaust pipe 15. A connecting block 16 is fixed inside the exhalation tube 94. An ultraviolet disinfection lamp tube 17 coaxial with the exhaust pipe 15 is fixed at the bottom of the connecting block 16. The ultraviolet disinfection lamp tube 17 is electrically connected to the controller 3. The ultraviolet disinfection lamp tube 17 emits ultraviolet light of a specific wavelength to disinfect and sterilize the patient's exhaled air. For example, a tubular ozone-free ultraviolet disinfection lamp with a wavelength of 253.7nm can be used.

[0025] The outer wall of the exhaust pipe 15 is threaded with a cylinder 18, and the inside of the cylinder 18 is filled with adsorption filler 19. Several air outlet holes 20 are opened at the bottom of the cylinder 18. By unscrewing the cylinder 18 from the exhaust pipe 15, it is convenient to replace the adsorption filler 19 inside the cylinder 18.

[0026] The operating principle of this invention is explained as follows: Before nebulization treatment, the mask 2 is connected to the connecting tube 91. Then, the patient holds the box 4 and wears the mask 2. The medical staff activates the recording button on the controller 3 and instructs the patient to take deep breaths. When the patient inhales, external air enters the box 4 through the inhalation inlet tube 5 and flows through the temperature detection probe 12 and the constant temperature thermal flow probe 7. Then, it is inhaled into the patient's body through the inhalation outlet tube 6 and the mask 2. At this time, because the patient inhales, the respiratory sensor assembly 11 detects negative pressure (the respiratory sensor assembly 11 includes a respiratory sensor and a mounting shell, with the hose 92 and connecting tube 91 connected to the mounting shell). When the patient finishes inhaling and begins to exhale, the respiratory sensor assembly 11 detects... When the negative pressure disappears, the respiratory sensor assembly 11 sends an electrical signal to the controller 3. The controller 3 immediately closes the two inhalation valves 95 and opens the two expiratory valves 96. At this time, the patient's exhaled air flows back into the box 4 through the mask 2, connecting tube 91, expiratory sensor assembly, tubing 92, square tube 101, and expiratory inlet tube 93. It then passes through the temperature detection probe 12 and the constant temperature thermal flow probe 7 in sequence, and finally exits the box 4 through the expiratory outlet tube 94. The patient takes three deep breaths in total. During this process, the temperature detection probe 12 can detect the temperature of the external air entering the box 4 and the temperature of the patient's exhaled air, while the constant temperature thermal flow probe 7 heats its own probe temperature to 38℃±0.At 2℃, both external air and the patient's exhaled air carry away heat from the thermostatic thermal flow rate probe 7 as they pass through it, causing the probe temperature to drop. The probe 7 then uses its built-in closed-loop control circuit to detect the temperature deviation in real time and automatically increases the heating current to compensate for the lost heat, thus maintaining a constant temperature at the probe. The flow rate of the passing gas can be measured based on the changes in the electrical signal from the closed-loop control circuit. (The temperature detection probe 12 detects the temperature of the external air and the patient's exhaled air, transmitting the real-time temperature data to the controller 3. The controller 3 dynamically compensates and calibrates the flow rate detection signal based on the difference between the actual gas temperature and the set temperature of the thermostatic thermal flow rate probe 7, preventing differences in external air temperature and the patient's exhaled air temperature from affecting the probe's flow rate judgment.) The controller 3 obtains the inhaled and exhaled gas flow rates during a single breath. Simultaneously, the timing module of the controller 3 calculates the time required for each inhalation and exhalation based on the time difference of the electrical signal fed back from the respiratory sensor component 11. The patient takes three deep breaths. The controller 3 calculates the total inhalation and exhalation volume of each deep breath based on the gas flow rate during each inhalation and exhalation. Then, medical staff set the duration of each deep breath according to the patient's physical condition (e.g., for adults in good condition, the inhalation and exhalation time is maintained at 6-7 seconds; for patients with poor physical condition, the time can be appropriately shortened). Next, the controller 3 calculates the baseline inhalation rate and baseline expiration rate based on the total inhalation and exhalation volume and the time set by the medical staff. After preparation, the medical staff pours the medication into the nebulizer cup component 1 and then connects the outlet of the nebulizer cup component 1 to the inhalation inlet tube 5. The patient then holds the nebulizer cup assembly 1. Medical staff then activate the nebulizer and press the operating button on the controller 3. The medication inside the nebulizer cup assembly 1 is atomized into tiny droplets, which are then carried by the airflow through the inhalation inlet tube 5 into the housing 4. The droplets then flow through the temperature detection probe 12 and the constant-temperature thermal flow rate probe 7, and finally are inhaled by the patient through the inhalation outlet tube 6 and the mask 2. During exhalation, following the aforementioned airflow process, the exhaled air is finally expelled through the exhalation outlet tube 94. Throughout this process, the constant-temperature thermal flow rate probe 7 monitors the inhalation and exhalation rates in real time, and detects any deviations in the inhalation rate from the previously measured baseline inhalation rate. At the baseline expiratory rate, an electrical signal is fed back to the controller 3, which then controls the voice prompt device 8 to operate. After hearing the prompt from the voice prompt device 8, the patient slows down their inhalation or exhalation rate, thereby keeping the patient's inhalation and exhalation rates within a suitable range. This avoids insufficient deposition of the nebulizer mist in the airway and reduced nebulization efficacy due to excessively rapid inhalation or exhalation rates, and ensures that the medication penetrates deep into the affected area. At the same time, it prevents respiratory rhythm disorders from affecting the treatment effect and the quality of breathing training (during the process of medical staff pouring the medication solution to prepare for nebulization, the working button of the controller 3 can also be pressed to train the patient's breathing rate and allow the patient to adapt in advance). The gas exhaled through the exhalation tube 94 enters the exhaust tube 15. The ultraviolet disinfection lamp tube 17 emits ultraviolet light of a specific wavelength, which can disinfect and sterilize the exhaled gas. Then the gas enters the cylinder 18 and is finally discharged through the air outlet 20. Tiny droplets that may be carried in the gas entering the cylinder 18 are adsorbed by the adsorption filler 19 to minimize the leakage of drugs and affect the surrounding air environment. After each use, the mask 2 and atomizing cup assembly 1 need to be disassembled from the box body 4, and the inside of the box body 4, inhalation inlet pipe 5, inhalation outlet pipe 6, exhalation inlet pipe 93, exhalation outlet pipe 94, connecting pipe 91, hose 92, square tube 101, exhaust pipe 15 and other components need to be cleaned. The inhalation solenoid valve 95 and exhalation solenoid valve 96 are normally open solenoid valves. When the controller 3 is de-energized, the inhalation solenoid valve 95 and exhalation solenoid valve 96 remain open to facilitate cleaning the inside of the box body 4 and other components with cleaning fluid. When the controller 3 is activated, it will control the inhalation solenoid valve 95 and exhalation solenoid valve 96 to open alternately. The adsorption filler 19 can be replaced by removing the cylinder 18.

[0027] 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 medical heated nebulizer with breathing training function, comprising a nebulizer cup assembly (1), a mask (2), and a controller (3), characterized in that, Also includes: The box body (4) is located between the atomizing cup assembly (1) and the mask (2). One end of the box body (4) is fixedly connected to an air intake pipe (5) that is detachably connected to the air outlet of the atomizing cup assembly (1). The other end of the box body (4) away from the air intake pipe (5) is fixedly connected to an air intake and exhaust pipe (6) that is detachably connected to the air inlet of the mask (2). The controller (3) is fixed on the outer wall of the box body (4). A constant temperature thermal flow rate probe (7) is fixedly inserted into the top of the box (4), and the detection end of the constant temperature thermal flow rate probe (7) is set inside the box (4). A voice prompt device (8) is fixed on the outer wall of the box (4), and the controller (3) controls the voice prompt device (8) to work according to the electrical signal fed back by the constant temperature thermal flow rate probe (7). An exhalation recirculation unit (9) is disposed between the mask (2) and the box (4), and the exhalation recirculation unit (9) introduces the patient's exhaled gas into the box (4) and then discharges it.

2. The medical heated nebulizer with breathing training function according to claim 1, characterized in that, The exhalation recirculation unit (9) includes a connecting tube (91), which is detachably connected to the outlet end of the mask (2). A flexible tube (92) is fixedly connected to the connecting tube (91). An exhalation inlet tube (93) is fixedly inserted into the side wall of the box (4), and a heat dissipation component (10) is connected between the flexible tube (92) and the exhalation inlet tube (93). The exhalation inlet tube (93) is located between the constant temperature thermal flow probe (7) and the inhalation inlet tube (5). (4) has an exhalation tube (94) fixedly inserted at the bottom, and the exhalation tube (94) is located between the constant temperature thermal flow probe (7) and the inhalation tube (6). The inhalation tube (5) and the inhalation tube (6) are both equipped with an inhalation electric control valve (95). The exhalation tube (93) and the exhalation tube (94) are both equipped with an exhalation electric control valve (96). The inhalation electric control valve (95) and the exhalation electric control valve (96) are both electrically connected to the controller (3).

3. A medical heated nebulizer with breathing training function according to claim 2, characterized in that, The heat dissipation assembly (10) includes a square tube (101) connected to the exhalation inlet pipe (93). A set of heat dissipation fins (102) are fixedly inserted at both the upper and lower ends of the square tube (101), and the two sets of heat dissipation fins (102) are staggered. The hose (92) is connected to the inside of the square tube (101).

4. A medical heated nebulizer with breathing training function according to claim 2, characterized in that, The hose (92) and the connecting pipe (91) are fixedly connected to a breathing sensor assembly (11). The controller (3) controls the operation of the inhalation control valve (95) and the exhalation control valve (96) based on the electrical signal fed back by the breathing sensor assembly (11).

5. A medical heated nebulizer with breathing training function according to claim 1, characterized in that, A temperature detection probe (12) is fixedly inserted at the top of the box (4) between the air intake pipe (5) and the constant temperature thermal flow probe (7), and the detection end of the temperature detection probe (12) is located inside the box (4). The temperature detection probe (12) is electrically connected to the controller (3).

6. A medical heated nebulizer with breathing training function according to claim 1, characterized in that, An insulating frame (13) is fixedly connected inside the box (4) near the air intake and exhaust pipe (6), and an electric heating mesh (14) is fixed inside the insulating frame (13). The electric heating mesh (14) is electrically connected to the controller (3).

7. A medical heated nebulizer with breathing training function according to claim 2, characterized in that, The outlet end of the exhalation tube (94) is fixedly connected to the exhaust pipe (15). A connecting block (16) is fixed inside the exhalation tube (94). A UV disinfection lamp tube (17) coaxial with the exhaust pipe (15) is fixed at the bottom of the connecting block (16), and the UV disinfection lamp tube (17) is electrically connected to the controller (3).

8. A medical heated nebulizer with breathing training function according to claim 7, characterized in that, The outer wall of the exhaust pipe (15) is threaded with a cylinder (18), and the inside of the cylinder (18) is filled with adsorption filler (19). Several air outlet holes (20) are opened at the bottom of the cylinder (18).

Images