Chronic obstructive pulmonary disease treatment inhalation metering device

Abstract

This invention provides an inhalation metering device for the treatment of chronic obstructive pulmonary disease (COPD), belonging to the field of oxygen metering technology. It includes a connecting base with a hygroscopic bottle installed at the bottom. The interior of the hygroscopic bottle communicates with the interior of the connecting base. A liquid adding mechanism is installed inside the hygroscopic bottle to add liquid. A dispensing mechanism is installed below the liquid adding mechanism. The liquid adding mechanism includes a gas delivery tube installed inside the hygroscopic bottle, with a locking block at the upper end of the tube for stable placement inside the bottle. A collection chamber is fixedly installed outside the gas delivery tube, with a dispensing hole at the bottom of the collection chamber and a sealing plug inside the dispensing hole. This device can automatically add liquid to the hygroscopic bottle while preventing splashing during addition, which could interfere with the patient's normal oxygen intake.

Description

Technical Field

[0001] This invention relates to the field of oxygen metering technology, and more specifically, to an inhalation metering device for the treatment of chronic obstructive pulmonary disease. Background Technology

[0002] During surgery for chronic obstructive pulmonary disease (COPD), patients are observed and treated while lying in bed. Due to the special nature of lung diseases, such as the inadequacy of the remaining lung after complete removal of one lung, patients may experience hypoxia or respiratory distress after surgery, requiring ventilator-assisted ventilation for 12-24 hours to enable them to breathe normally.

[0003] To ensure patients receive proper oxygen, an oxygen meter is connected to an oxygen cylinder, and the inhalation tubing is connected to the outlet of the meter. The inhalation point on the inhalation tubing is then placed in the patient's nasal cavity for oxygen inhalation. Oxygen meters are often used with humidification bottles, which contain distilled water. Oxygen is first immersed in the distilled water before being delivered to the patient's nasal cavity for respiration through the lungs. During this process, the distilled water level in the humidification bottle gradually decreases. When the distilled water level falls below the minimum level, the patient's oxygen intake will be affected. Family members, when supervising the patient, may easily overlook the distilled water level, potentially causing secondary harm to the patient. Summary of the Invention

[0004] To overcome the above deficiencies, the present invention provides an inhalation metering device for the treatment of chronic obstructive pulmonary disease that overcomes or at least partially solves the above technical problems.

[0005] This invention is implemented as follows: This invention provides an inhalation metering device for the treatment of chronic obstructive pulmonary disease, including a connecting base and a hygroscopic bottle installed at the bottom of the connecting base. The interior of the hygroscopic bottle is connected to the interior of the connecting base. A liquid addition mechanism is also provided inside the hygroscopic bottle to add liquid into the hygroscopic bottle. A liquid dispensing mechanism is also installed below the liquid addition mechanism. The liquid addition mechanism includes: A gas delivery pipe is installed inside the humidification bottle, and a locking block is provided at the upper end of the gas delivery pipe to stably install the gas delivery pipe inside the humidification bottle. A liquid collection chamber is fixedly installed outside the gas transmission pipe, and a liquid outlet is provided at the bottom of the liquid collection chamber, with a sealing plug installed inside the liquid outlet.

[0006] In a preferred embodiment, the liquid dispensing mechanism includes a float and a flow restrictor. A sealing plug is fixedly installed at one end of the float, and the flow restrictor is also fixedly installed at the upper end of the float, with the flow restrictor positioned below the sealing plug.

[0007] In a preferred embodiment, the top of the flow restrictor is set as an opening, and the position of the flow restrictor corresponds to the liquid outlet. The outer surface of the flow restrictor is connected to an auxiliary drainage tube. One end of the auxiliary drainage tube is provided with a slit, and the distance between one end of the auxiliary drainage tube and the inner wall of the hygroscopic bottle is set to 2mm. Moreover, the auxiliary drainage tube is set in an inclined state.

[0008] In a preferred embodiment, a red warning ball is also fixedly installed at the upper end of the float and positioned below the flow restrictor. The diameter of the red warning ball is set to 5 cm, and the red warning ball is always positioned above the distilled water inside the desiccant bottle.

[0009] In a preferred embodiment, the outer surface of the connecting seat is connected to a connecting pipe, one end of the connecting pipe is provided with a rotatable screw cap, and a pressure gauge is provided at the middle section of the connecting pipe. A measuring column is also provided on the connecting seat, the interior of the measuring column is provided with a measuring ball, and a rotatable rotary knob is provided on the outside of the connecting seat for adjusting the movement of the measuring ball on the measuring column.

[0010] In a preferred embodiment, the bottom of the connector is provided with a mounting cover, and the desiccant bottle is installed inside the mounting cover by a screw. An vent pipe is fixedly installed on the outer surface of the mounting cover and communicates with the interior of the mounting cover.

[0011] In a preferred embodiment, a sealing ring is fixedly installed on the outer side of the card block and is snapped into the interior of the desiccant bottle. The top of the desiccant bottle is set as an opening, and a threaded ring is provided on the upper part of the outer side of the desiccant bottle. Several round holes are opened on the top of the card block and are evenly distributed on the card block.

[0012] In a preferred embodiment, the liquid collection chamber is configured in an annular shape and is positioned at the upper end of the gas transmission pipe. A snap-fit ​​block is fixedly installed on the outer surface of the liquid collection chamber, with an opening at the bottom of the snap-fit ​​block. A sealing cover is attached to the top of the liquid collection chamber, and a sealing gasket is adhered to the inner top of the sealing cover to ensure that the sealing cover is tightly fitted onto the liquid collection chamber.

[0013] In a preferred embodiment, the internal depth of the liquid collection chamber is set to 4 cm, and the liquid collection chamber is made of medical-grade polypropylene.

[0014] In a preferred embodiment, the outer surface of the humidification bottle is provided with a low liquid level line and a high liquid level line, the distance between the two liquid level lines is set to 3 cm, and the liquid inside the humidification bottle is selected from either sterile distilled water or 0.9% physiological saline.

[0015] The present invention provides an inhalation metering device for the treatment of chronic obstructive pulmonary disease, the beneficial effects of which include: By installing a collection chamber inside the hygroscopic bottle, a portion of the liquid can be pre-stored in the collection chamber for automatic replenishment of the liquid into the hygroscopic bottle. A sealing plug is installed inside the liquid outlet, which is connected to a float. A flow restrictor is stably installed on the float, and an auxiliary drainage tube is installed on the flow restrictor. When the liquid is added to the hygroscopic bottle, it can flow downward along the inner wall of the hygroscopic bottle to avoid splashing and ensure the patient's normal oxygen intake.

[0016] By setting a red warning ball on the float rod, which is located below the flow restrictor, the red warning ball moves downward as the liquid level inside the hygroscopic bottle moves downward. This allows the patient's family or medical staff to see the conspicuous red warning ball and promptly observe changes in the liquid level inside the hygroscopic bottle, thus preventing accidents when the patient is receiving oxygen.

[0017] 3. By installing a removable sealing cap on the top of the collection chamber, the inside of the collection chamber can be thoroughly disinfected when disinfecting the dehumidification bottle. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the liquid collection tank structure of the present invention; Figure 3 This is a schematic diagram of the gas pipeline structure of the present invention; Figure 4 This is a schematic diagram of the float structure of the present invention; Figure 5 This is a schematic diagram of the structure of the desiccant bottle of the present invention; Figure 6 This is a schematic diagram of the card block structure of the present invention.

[0020] In the diagram: 1. Connecting seat; 2. Hygroscopic bottle; 3. Liquid addition mechanism; 31. Gas supply pipe; 311. Locking block; 32. Liquid collection tank; 321. Liquid outlet; 322. Sealing plug; 4. Liquid outlet mechanism; 41. Float; 42. Flow restrictor; 5. Auxiliary drainage pipe; 6. Red warning ball; 7. Connecting pipe; 8. Screw cap; 9. Pressure gauge; 10. Measuring column; 11. Rotary knob; 12. Mounting cover; 13. Gas outlet pipe; 14. Sealing ring; 15. Threaded ring; 16. Round hole; 17. Locking block; 18. Sealing cap; 19. Low liquid level line; 20. High liquid level line. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0022] Reference Figures 1-6 The present invention provides a technical solution: an inhalation metering device for the treatment of chronic obstructive pulmonary disease, including a connecting base 1, and a hygroscopic bottle 2 installed at the bottom of the connecting base 1. The interior of the hygroscopic bottle 2 is connected to the interior of the connecting base 1. A liquid addition mechanism 3 is also provided inside the hygroscopic bottle 2, and liquid is added to the interior of the hygroscopic bottle 2 through the liquid addition mechanism 3. A liquid dispensing mechanism 4 is also installed below the liquid addition mechanism 3. The liquid addition mechanism 3 includes an air delivery pipe 31, which is installed inside the hygroscopic bottle 2. A locking block 311 is provided at the upper end of the air delivery pipe 31 to stably install the air delivery pipe 31 inside the hygroscopic bottle 2. A liquid collection chamber 32 is fixedly installed outside the air delivery pipe 31, and a liquid outlet 321 is provided at the bottom of the liquid collection chamber 32. A sealing plug 322 is provided inside the liquid outlet 321.

[0023] In a preferred embodiment, the liquid dispensing mechanism 4 includes a float 41 and a flow restrictor 42. The float 41 is hollow and positioned far from the gas delivery pipe 31 to avoid affecting its position. The distance is greater than 1 cm. A limiting plate is fixedly installed on the inner wall of the hygroscopic bottle 2. The float 41 passes through the interior of the limiting plate and slides within it, allowing for stable up-and-down movement. A sealing plug 322 is fixedly installed at one end of the float 41. The sealing plug 322 is conical in shape, specifically narrower at the top and wider at the bottom. The narrow end of the sealing plug 322 can... The liquid inlet / outlet port 321 is inserted into the interior of the liquid collection chamber 32 to seal the interior of the liquid collection chamber 32 and prevent the liquid inside the liquid collection chamber 32 from flowing out at will and causing waste. The device will also fix a flow restrictor 42 at the upper end of the float 41 and set the flow restrictor 42 below the sealing plug 322. The flow restrictor 42 is set in a U-shape and the opening faces upward. The position of the flow restrictor 42 corresponds to the liquid outlet port 321. When liquid is added to the hygroscopic bottle 2 in the future, the liquid will first flow into the interior of the flow restrictor 42 for diversion. This can prevent the liquid from falling directly into the hygroscopic bottle 2 and splashing the liquid inside the hygroscopic bottle 2, which would affect the patient's normal oxygen inhalation.

[0024] This device features an opening at the top of the flow-limiting hood 42, aligning the hood 42 with the outlet 321. An auxiliary drainage tube 5 connects to the outer surface of the flow-limiting hood 42, with a slit at one end. The distance between one end of the auxiliary drainage tube 5 and the inner wall of the hygroscopic bottle 2 is 2mm, and the auxiliary drainage tube 5 is tilted. This tilted installation on the outer surface of the flow-limiting hood 42, with the outlet end facing downwards, allows liquid inside the flow-limiting hood 42 to flow out through the auxiliary drainage tube 5. The 2mm distance between one end of the auxiliary drainage tube 5 and the inner wall of the hygroscopic bottle 2 controls the downward flow of liquid from the inner wall of the hygroscopic bottle 2, allowing it to mix with the existing liquid and increase the solution volume. This keeps the solution volume between the low level line 19 and the high level line 20, within which the patient can receive normal oxygen.

[0025] When a patient inhales oxygen, the oxygen must be in a humid state. If the patient inhales dry oxygen, the oxygen will absorb the moisture in the lungs, causing the patient's throat to become dry and causing discomfort. If the oxygen is too humid, it can easily cause the patient to cough, which can be dangerous. Therefore, it is necessary to ensure the humidity of the oxygen. The liquid level inside the humidification bottle 2 is located between the low liquid level line 19 and the high liquid level line 20, which is just enough to ensure that the oxygen carries enough moisture for use.

[0026] Reference Figures 1-6 In a preferred embodiment, a red warning ball 6 is fixedly installed at the upper end of the float 41 and positioned below the flow restrictor 42. The red warning ball 6 is made of medical-grade polypropylene to avoid contaminating the inside of the hygroscopic bottle 2. The diameter of the red warning ball 6 is set to 5 cm, and the red warning ball 6 is always positioned above the distilled water inside the hygroscopic bottle 2. During use, as the liquid level inside the hygroscopic bottle 2 drops and the collection chamber 32 is empty, the float 41 moves downward with the drop in liquid level, causing the red warning ball 6 to move downward as well. This allows the patient's family members or medical staff to clearly see the red warning ball 6. The bright red color is eye-catching and easily attracts the attention of family members or medical staff, enabling them to observe the liquid level inside the hygroscopic bottle 2 and add or replace the hygroscopic bottle 2 in a timely manner to continue oxygen administration to the patient.

[0027] This device connects to a connecting pipe 7 on the outer surface of the connecting base 1. A rotatable screw cap 8, made of stainless steel, is installed at one end of the connecting pipe 7, with a threaded groove inside. During use, the screw cap 8 is screwed onto the outlet of an external oxygen cylinder. A sealing gasket is also installed at one end of the connecting pipe 7 to improve the sealing between the connecting pipe 7 and the external oxygen cylinder, ensuring the normal delivery of oxygen into the connecting pipe 7. A pressure gauge 9 is installed in the middle of the connecting pipe 7, with its sensing end inside the connecting pipe 7, for detecting the internal air pressure. By observing the value on the pressure gauge 9, the internal air pressure of the connecting pipe 7 can be monitored. The oxygen supply pressure is set to a reasonable value to ensure safe use. A metering column 10 is installed on the connecting seat 1, with a metering ball inside. A rotatable knob 11 is installed on the outside of the connecting seat 1 to adjust the movement of the metering ball on the metering column 10. The metering column 10 is used to regulate the oxygen delivery metering. The movement of the metering ball inside the metering column 10 is controlled by rotating the knob 11. The specific operation and principle are existing technologies and will not be described in detail. The oxygen input rate can be adjusted, that is, the oxygen metering can be adjusted. The oxygen metering is different for each patient and should be reasonably selected according to the patient's condition. The specific metering is set by medical staff.

[0028] A mounting cover 12 is provided at the bottom of the connecting seat 1, and the desiccant bottle 2 is installed inside the mounting cover 12 by a screw. The vent pipe 13 is fixedly installed on the outer surface of the mounting cover 12 and communicates with the inside of the mounting cover 12. The bottom of the mounting cover 12 is open and the inner wall is provided with a threaded groove, so that the desiccant bottle 2 can be screwed into the inside of the mounting cover 12 for use on the mounting cover 12. A sealing gasket is also provided between the two to achieve a sealing effect and prevent the equipment from leaking air.

[0029] The device has a sealing ring 14 fixedly installed on the outer side of the locking block 311, and the sealing ring 14 is snapped into the interior of the hygroscopic bottle 2. The top of the hygroscopic bottle 2 is set as an opening, and a threaded ring 15 is set on the upper part of the exterior of the hygroscopic bottle 2. The top of the locking block 311 has several round holes 16, which are evenly distributed on the locking block 311. The locking block 311 is made of elastic material. When the locking block 311 is installed into the interior of the hygroscopic bottle 2, it can be snapped into the interior of the hygroscopic bottle 2 by the elastic compression of the locking block 311. The locking block 311 has several round holes 16. During use, oxygen will be delivered from the interior of the upper gas delivery pipe 31 into the interior of the hygroscopic bottle 2. As the oxygen rises inside the hygroscopic bottle 2, it moves to the position of the gas outlet pipe 13. Finally, the oxygen can be output from the interior of the gas outlet pipe 13, completing the oxygen delivery. An oxygen inhalation tube is installed on the gas outlet pipe 13, and the patient inhales oxygen through the oxygen inhalation tube.

[0030] The liquid collection chamber 32 is designed in a ring shape and is positioned at the upper end of the gas delivery pipe 31. A snap-fit ​​block 17 is fixedly installed on the outer surface of the liquid collection chamber 32. The bottom of the snap-fit ​​block 17 is open, and two snap-fit ​​blocks 17 are installed on the left and right sides of the desiccant bottle 2, respectively. A sealing cover 18 is attached to the top of the liquid collection chamber 32. A sealing gasket is adhered to the inner top of the sealing cover 18 to ensure a tight seal. The sealing cover 18 seals the liquid collection chamber 32, preventing spillage. The sealing cover 18 is also removable, facilitating thorough disinfection of the interior of the liquid collection chamber 32, preventing bacterial growth, and ensuring sterile operation of the equipment.

[0031] The liquid collection chamber 32 is designed with an internal depth of 4cm. The liquid collection chamber 32 is made of medical-grade polypropylene, a medical-grade material that is not only durable but also resistant to bacterial growth. The outer surface of the humidification bottle 2 is also provided with a low liquid level line 19 and a high liquid level line 20, with a distance of 3cm between the two liquid level lines. The liquid level inside the humidification bottle 2 must not be lower than the low liquid level line 19 or higher than the high liquid level line 20. The liquid inside the humidification bottle 2 is either sterile distilled water or 0.9% physiological saline.

[0032] Specifically, a chronic obstructive pulmonary disease (COPD) treatment inhalation metering device is used to administer oxygen to patients and automatically add usable liquid to the humidification bottle 2 to prevent the patient's normal oxygen intake from being affected when the liquid level is below the low liquid level line 19.

[0033] In use, connect this device to the outlet of the oxygen cylinder located next to the bedside. Screw the screw cap 8 onto the outlet of the oxygen cylinder. After tightening, the oxygen cylinder can be opened, and oxygen can then be delivered from the connecting tube 7 into the connecting seat 1. Before opening the oxygen cylinder, medical staff must adjust the flow rate of oxygen entering the connecting seat 1. For nasal cannula oxygen delivery in cases of mild hypoxia, the oxygen flow rate can be adjusted to 1L / min-3L / min for adults and 0.5L / min-1L / min for children. For face mask oxygen delivery, the oxygen flow rate can be adjusted to 5L / min-10L / min. For severe cases requiring complete oxygen support, the oxygen flow rate can be adjusted to the maximum. Therefore, the oxygen delivery volume can be adjusted according to the patient's condition. Turning the rotary knob 11 by medical staff will control the ball inside the measuring column 10 to move upward and stop at the desired flow rate position, ensuring that the patient's oxygen flow rate is within the normal range, avoiding insufficient oxygen intake and hypoxia, and also preventing oxygen waste.

[0034] Before use, a measured amount of liquid is added to the humidification bottle 2, with the liquid level between the low level line 19 and the high level line 20. Then, the gas supply pipe 31 is inserted into the humidification bottle 2, and the outlet end of the gas supply pipe 31 is immersed in the liquid. The end of the float 41 also floats on the liquid. The sealing plug 322 at the upper end of the float 41 is then inserted into the liquid outlet 321 to seal it. Next, liquid is added to the collection tank 32. Place the sealing cap 18 on top of the liquid collection tank 32. The device will install an elastic clip on the inner side of the sealing cap 18. Insert the elastic clip on the sealing cap 18 into the inside of the snap-fit ​​block 17 to stably cover the liquid collection tank 32. Next, snap the gas delivery pipe 31 into the inside of the snap-fit ​​block 311 and snap the snap-fit ​​block 311 into the inside of the desiccant bottle 2 to stabilize the gas delivery pipe 31. Then, rotate and screw the desiccant bottle 2 into the mounting cover 12 to stably connect the connecting seat 1 and the desiccant bottle 2 together.

[0035] Oxygen entering the connector 1 will be delivered from the gas supply tube 31 to the humidification bottle 2. Oxygen will overflow from the liquid. At this time, the oxygen is in a humid state. As the oxygen content inside the humidification bottle 2 continues to increase, the oxygen will eventually be discharged through the outlet tube 13 and delivered to the patient's nasal cavity through the air guide tube. One end of the air guide tube will be connected to the outlet tube 13 for use.

[0036] After a period of oxygen supply, the liquid volume inside the humidification bottle 2 will gradually decrease. When the liquid volume is lower than the low liquid level line 19, it will trigger the float 41 to move downward and pull the sealing plug 322 out from the inside of the liquid outlet 321. At this time, the liquid inside the collection chamber 32 will flow out. To prevent the liquid from splashing onto the original liquid surface and affecting the patient's normal oxygen intake, when the liquid flows out from the collection chamber 32, it will fall into the inside of the flow restrictor 42 and flow out from the inside of the auxiliary drainage tube 5. At this time, the liquid will flow downward along the inner wall of the humidification bottle 2 to achieve static liquid addition without splashing, ensuring the patient's normal oxygen intake.

[0037] When the liquid level inside the humidification bottle 2 rises and is brought to a reasonable range, that is, between the low liquid level line 19 and the high liquid level line 20, it will drive the float 41 to move upward and control the sealing plug 322 to continue to be inserted into the inlet / outlet hole 321, stopping the addition of liquid.

[0038] Furthermore, to prevent the collection chamber 32 from being empty and the liquid level inside the humidification bottle 2 from falling below the minimum level, the float 41 will also move downwards, causing the red warning ball 6 to move downwards. Since the humidification bottle 2 is transparent, family members or medical staff can see the conspicuous red warning ball 6 when they make rounds, and can check the situation in time to avoid affecting the patient's normal oxygen intake due to the drop in liquid level.

Claims

1. An inhalation metering device for the treatment of chronic obstructive pulmonary disease, characterized in that, Includes a connecting seat (1), and a moisture-absorbing bottle (2) is installed at the bottom of the connecting seat (1). The interior of the moisture-absorbing bottle (2) is connected to the interior of the connecting seat (1). A liquid addition mechanism (3) is also provided inside the moisture-absorbing bottle (2), and liquid is added to the interior of the moisture-absorbing bottle (2) through the liquid addition mechanism (3). A liquid dispensing mechanism (4) is also installed below the liquid addition mechanism (3). The liquid addition mechanism (3) includes: Gas delivery pipe (31) is installed inside the desiccant (2), and a locking block (311) is set at the upper end of the gas delivery pipe (31) to stably install the gas delivery pipe (31) inside the desiccant (2); The liquid collection chamber (32) is fixedly installed outside the gas transmission pipe (31), and a liquid outlet hole (321) is provided at the bottom of the liquid collection chamber (32). A sealing plug (322) is provided inside the liquid outlet hole (321).

2. The inhalation metering device for treating chronic obstructive pulmonary disease according to claim 1, characterized in that, The liquid dispensing mechanism (4) includes a float (41) and a flow restrictor (42). A sealing plug (322) is fixedly installed at one end of the float (41), and a flow restrictor (42) is also fixedly installed at the upper end of the float (41), with the flow restrictor (42) positioned below the sealing plug (322).

3. The inhalation metering device for treating chronic obstructive pulmonary disease according to claim 2, characterized in that, The top of the flow restrictor (42) is set as an opening, and the position of the flow restrictor (42) corresponds to the position of the liquid outlet (321). The outer surface of the flow restrictor (42) is connected to the auxiliary drainage tube (5). One end of the auxiliary drainage tube (5) is provided with a cut, and the distance between one end of the auxiliary drainage tube (5) and the inner wall of the hygroscopic bottle (2) is set to 2mm. Moreover, the auxiliary drainage tube (5) is set in an inclined state.

4. The inhalation metering device for treating chronic obstructive pulmonary disease according to claim 3, characterized in that, A red warning ball (6) is also fixedly installed at the upper end of the float (41) and placed below the flow restrictor (42). The diameter of the red warning ball (6) is set to 5cm, and the red warning ball (6) is always above the distilled water inside the dehumidification bottle (2).

5. The inhalation metering device for treating chronic obstructive pulmonary disease according to claim 4, characterized in that, The outer surface of the connecting seat (1) is connected to the connecting pipe (7). A rotatable screw cap (8) is provided at one end of the connecting pipe (7), and a pressure gauge (9) is provided at the middle section of the connecting pipe (7). A metering column (10) is also provided on the connecting seat (1). The inside of the metering column (10) is set as a metering ball, and a rotatable rotary knob (11) is provided on the outside of the connecting seat (1) to adjust the movement of the metering ball on the metering column (10).

6. The inhalation metering device for treating chronic obstructive pulmonary disease according to claim 5, characterized in that, The bottom of the connecting seat (1) is provided with an installation cover (12), and the dehumidification bottle (2) is installed in the installation cover (12) by a spiral. The outer surface of the installation cover (12) is fixedly installed with an exhaust pipe (13), and the exhaust pipe (13) is connected to the inside of the installation cover (12).

7. The inhalation metering device for treating chronic obstructive pulmonary disease according to claim 6, characterized in that, A sealing ring (14) is fixedly installed on the outer side of the card block (311) and the sealing ring (14) is inserted into the interior of the dehumidification bottle (2). The top of the dehumidification bottle (2) is set as an opening, and a threaded ring (15) is provided on the upper part of the exterior of the dehumidification bottle (2). Several round holes (16) are opened on the top of the card block (311) and are evenly distributed on the card block (311).

8. The inhalation metering device for treating chronic obstructive pulmonary disease according to claim 7, characterized in that, The liquid collection chamber (32) is set in an annular shape and is placed at the upper end of the gas transmission pipe (31). A snap-fit ​​block (17) is fixedly installed on the outer surface of the liquid collection chamber (32). The bottom of the snap-fit ​​block (17) is set as an opening, and a sealing cover (18) is attached to the top of the liquid collection chamber (32). A sealing gasket is glued to the inner top of the sealing cover (18) to tightly cover the liquid collection chamber (32).

9. The inhalation metering device for treating chronic obstructive pulmonary disease according to claim 8, characterized in that, The internal depth of the liquid collection chamber (32) is set to 4cm, and the liquid collection chamber (32) is made of medical-grade polypropylene.

10. The inhalation metering device for treating chronic obstructive pulmonary disease according to claim 9, characterized in that, The outer surface of the humidification bottle (2) is provided with a low liquid level line (19) and a high liquid level line (20), and the distance between the two liquid level lines is set to 3cm. The liquid inside the humidification bottle (2) is either sterile distilled water or 0.9% physiological saline.

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