Oxygen regulating structure and respiratory therapy device

Abstract

The application discloses an oxygen adjusting structure and a respiratory treatment device, and relates to the technical field of respiratory treatment devices, in particular to an oxygen adjusting structure and a respiratory treatment device. The oxygen adjusting structure comprises a shell, an air inlet arranged on one end of the shell and used for connecting an oxygen source, an air outlet arranged on the other end of the shell and used for connecting a patient end, and an oxygen adjusting mechanism arranged in the shell and connected between the air inlet and the air outlet and provided with a flow stabilizer. The flow stabilizer can effectively stabilize the oxygen flow, avoid turbulent flow of the oxygen flow, and make the oxygen flow flow smoothly in a short distance, thereby ensuring accurate measurement of the oxygen flow, effectively shortening the length of the air guide channel in the oxygen adjusting structure, providing guarantee for accurate measurement of the oxygen consumption, significantly reducing the distance between the flow regulator and the flow meter, effectively reducing the volume of the oxygen adjusting structure, and being more conducive to miniaturization and multifunctionalization of the respiratory treatment device.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical equipment, in particular to an oxygen adjusting structure and a respiratory treatment device. BACKGROUND

[0002] The existing respiratory treatment device (such as a respiratory humidifier) has a conventional function, and also has a humidification function and an oxygen supply function, so that multiple function units are integrated on the same device, thereby facilitating the installation and use of the medical device, saving ward space, and facilitating the operation of doctors.

[0003] However, in order to have the oxygen supply function, the existing respiratory treatment device is usually connected with an oxygen source, and an oxygen module is arranged on the respiratory treatment device, so as to ensure that the oxygen can be smoothly delivered to the patient end. However, the existing oxygen module can only manually adjust the oxygen supply, which increases the workload of medical staff and often causes delay in adjustment, which is not conducive to the treatment of patients.

[0004] Therefore, the prior art still needs to be improved and developed. SUMMARY

[0005] In view of the above problems of the prior art, the present application aims to provide an oxygen adjusting structure and a respiratory treatment device, which can improve the problem that the oxygen supply of the existing respiratory treatment device needs to be manually adjusted.

[0006] The technical scheme adopted by the present application to solve the technical problem is as follows: an oxygen adjusting structure comprises:

[0007] a housing;

[0008] an air inlet, which is arranged on one end of the housing and is used for connecting an oxygen source;

[0009] an air outlet, which is arranged on the other end of the housing and is used for connecting a patient end;

[0010] an oxygen adjusting mechanism, which is arranged in the housing, is connected between the air inlet and the air outlet, and is provided with a flow stabilizer.

[0011] Further, the oxygen adjusting mechanism comprises:

[0012] an airway assembly, one end of which is connected to the air inlet;

[0013] a pressure regulator, which is connected in the airway assembly and is used for adjusting the oxygen pressure;

[0014] A flow regulator is connected to the airway assembly and arranged on the side of the pressure regulator away from the air inlet, for regulating the flow of oxygen gas;

[0015] A flow measurer is connected to one end of the flow regulator and the other end of the air outlet.

[0016] Further, the flow stabilizer comprises:

[0017] A connecting seat is connected to one end of the airway assembly;

[0018] A flow stabilizer valve is coaxially arranged with the connecting seat and connected to one end of the connecting seat away from the airway assembly, for stabilizing the flow of oxygen gas;

[0019] A flow stabilizer sleeve is sleeved on one end of the connecting seat and the flow stabilizer valve, and the other end of the flow stabilizer sleeve is connected to the flow measurer.

[0020] Further, the connecting seat comprises an integrally formed connecting plate part and a valve core connecting part; the connecting plate part is connected to the airway assembly and is provided with an arc-shaped drainage port; the valve core connecting part is arranged on the side of the connecting plate away from the airway assembly, for accommodating the flow stabilizer valve;

[0021] The flow stabilizer valve comprises an integrally connected valve core base ring, a flow stabilizer ring hole part and a flow stabilizer valve piece; the valve core base ring and the flow stabilizer ring hole part are accommodated in the valve core connecting part, and the valve core base ring and the flow stabilizer ring hole part are used for stabilizing the flow of oxygen gas.

[0022] Further, the airway assembly comprises:

[0023] An airway body;

[0024] An air inlet is arranged on one end of the airway body close to the air inlet;

[0025] A first airway is connected to one end of the pressure regulator, and the other end of the first airway is connected to the flow stabilizer;

[0026] A second airway is connected to one end of the pressure regulator, and the other end of the second airway is connected to the first airway.

[0027] Further, the airway assembly further comprises:

[0028] A pressure regulator mounting part is arranged as an inner concave circular groove between the air inlet and the first airway;

[0029] A flow regulator mounting portion is provided as an L-shaped slot between the second air passage and the flow stabilizer.

[0030] Further, the shell comprises:

[0031] An outer shell;

[0032] A mounting bracket is mounted in the outer shell for fixing the air inlet, air outlet and oxygen regulating mechanism.

[0033] Further, the oxygen regulating mechanism further comprises a control assembly, which comprises:

[0034] A PCB board is electrically connected to the pressure regulator, flow regulator and flow measurer.

[0035] A controller is electrically connected to the PCB board.

[0036] Further, the oxygen regulating mechanism comprises:

[0037] An air passage is connected to the air inlet at one end and connected to the air outlet at the other end.

[0038] A one-way valve is arranged in the air passage for controlling the air passage to be one-way conductive from the air inlet to the air outlet.

[0039] The flow stabilizer is arranged between the one-way valve and the air inlet.

[0040] The present application solves the technical problems by adopting the following technical solution: a respiratory treatment device, wherein the respiratory treatment device comprises the oxygen regulating mechanism as described above.

[0041] Compared with the prior art, the present application provides an oxygen regulating mechanism and a respiratory treatment device, which comprises a shell, an air inlet arranged at one end of the shell for connecting an oxygen source, an air outlet arranged at the other end of the shell for connecting a patient end, and an oxygen regulating mechanism arranged in the shell and connected between the air inlet and the air outlet and provided with a flow stabilizer. By arranging the flow stabilizer, the oxygen flow can be effectively stabilized to avoid turbulent flow, so that the oxygen flow can flow smoothly in a short distance, thereby ensuring accurate measurement of the oxygen flow, effectively shortening the length of the air passage in the oxygen regulating mechanism, providing protection for accurate measurement of the oxygen usage, significantly reducing the distance between the flow regulator and the flow measurer, effectively reducing the volume of the oxygen regulating mechanism, and being more conducive to miniaturization and multifunctionalization of the respiratory treatment device. BRIEF DESCRIPTION OF DRAWINGS

[0042] Figure 1 is a perspective view of the oxygen regulating structure in the preferred embodiment of the present application;

[0043] Figure 2 is a top view of the oxygen regulating structure in the preferred embodiment of the present application;

[0044] Figure 3 is a cross-sectional view in the direction of I-I in the preferred embodiment of the present application; Figure 2

[0045] Figure 4 is a perspective exploded view of the oxygen regulating structure in the preferred embodiment of the present application;

[0046] Figure 5 is a perspective view of the partial assembly of the oxygen regulating structure in the preferred embodiment of the present application, with the outer shell hidden;

[0047] Figure 6 is a perspective exploded view of the flow regulator of the oxygen regulating mechanism in the preferred embodiment of the present application;

[0048] Figure 7 is a perspective view of the air passage assembly of the oxygen regulating mechanism in the preferred embodiment of the present application;

[0049] Figure 8 is a top view of the air passage assembly in the preferred embodiment of the present application;

[0050] Figure 9 is a cross-sectional view in the direction of II-II in the preferred embodiment of the present application; Figure 8

[0051] Figure 10 is a cross-sectional view in the direction of III-III in the preferred embodiment of the present application; Figure 8

[0052] is a perspective view of the cooperation between the oxygen regulating mechanism, the air inlet and the air outlet in the preferred embodiment of the present application; Figure 11

[0053] is a schematic view of a modified structure in the preferred embodiment of the present application; Figure 12 Figure 3 is a schematic view of another modified structure in the preferred embodiment of the present application;

[0054] Figure 13 Figure 3 is a schematic view of another modified structure in the preferred embodiment of the present application;

[0055] BRIEF DESCRIPTION OF DRAWINGS

[0056] ​​​​1, respiratory therapy equipment; 10, oxygen regulating structure; 11, shell; 12, air inlet; 13, air outlet; 14, oxygen regulating mechanism; 15, control assembly; 16, connecting piece; 17, air inlet; 18, air outlet; 19, heating assembly; 111, shell; 112, mounting bracket; 1121, vertical plate; 1122, horizontal plate; 1123, air inlet mounting portion; 141, airway assembly; 142, pressure regulator; 143, flow regulator; 144, flow measurer; 145, flow stabilizer; 146, air guide; 147, one-way valve; 1411, airway body; 1412, air inlet; 1413, first airway; 1414, second airway; 1415, pressure regulator mounting portion; 1416, flow regulator mounting portion; 1417, flow stabilizer hole portion; 1418, flow stabilizer valve piece; 1451, connecting seat; 1452, flow stabilizer valve core; 1453, flow stabilizer sleeve; 1454, connecting plate portion; 1455, valve core connecting portion; 1456, valve core base ring; 1457, flow stabilizer hole portion; 1458, flow stabilizer valve piece; 1459, arc-shaped drainage port; 151, PCB board. DETAILED DESCRIPTION

[0057] The present application provides an oxygen regulating structure and respiratory therapy equipment, in order to make the purpose, technical scheme and effect of the present application more clear and definite, the present application will be further described in detail below with reference to the drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application.

[0058] The existing respiratory therapy equipment (such as respiratory humidifier) has conventional functions, and also has humidification function and oxygen supply function, and then integrates multiple function units on the same equipment, thereby facilitating the installation and use of medical equipment, saving ward space, and facilitating doctor operation. However, in order to have oxygen supply function, the existing respiratory therapy equipment usually connects an external oxygen source, and configures an oxygen module on the respiratory therapy equipment, thereby ensuring that oxygen can be smoothly delivered to the patient end. In order to accurately measure the oxygen flow, the oxygen module often needs to have a long airway, thereby resulting in a large volume of the oxygen module, which is not conducive to the integration of multiple functions of the respiratory therapy equipment, and is not conducive to the miniaturization of the respiratory therapy equipment. Based on the problem of large volume of the oxygen regulating structure of the existing respiratory therapy equipment, an oxygen regulating structure and respiratory therapy equipment are provided, which sets a flow stabilizer on the oxygen regulating structure, thereby effectively stabilizing the oxygen flow, and thereby enabling the oxygen flow to flow smoothly in a short stroke, thereby ensuring accurate measurement of the oxygen flow, effectively shortening the airway length in the oxygen regulating structure, and realizing the miniaturization of the oxygen regulating structure. For specific details, please refer to the following embodiments.

[0059] Please refer to Figures 1 to 4In the first embodiment of the present application, an oxygen regulating structure 10 is provided, comprising a shell 11, an air inlet 12, an air outlet 13 and an oxygen regulating mechanism 14; the air inlet 12 is arranged on one end of the shell 11 and used for connecting an oxygen source; the air outlet 13 is arranged on the other end of the shell 11 and used for connecting a patient end; the oxygen regulating mechanism 14 is arranged in the shell 11, and the oxygen regulating mechanism 14 is connected between the air inlet 12 and the air outlet 13 and is provided with a flow stabilizer 145.

[0060] It can be understood that, by arranging the flow stabilizer 145, the oxygen flow can be effectively stabilized to avoid turbulent flow of the oxygen flow, so that the oxygen flow can be smoothly flowed in a short distance, thereby ensuring accurate measurement of the oxygen flow, effectively shortening the airway length in the oxygen regulating structure, providing protection for accurate measurement of the oxygen usage, significantly reducing the distance between the flow regulator and the flow meter, effectively reducing the volume of the oxygen regulating structure, and being more conducive to miniaturization and multifunctionalization of the respiratory treatment equipment.

[0061] In some preferable embodiments, the oxygen regulating mechanism 14 comprises an airway assembly 141, a pressure regulator 142, a flow regulator 143 and a flow meter 144; one end of the airway assembly 141 is connected to the air inlet 12; the pressure regulator 142 is connected in the airway assembly 141 and used for regulating the oxygen pressure; the flow regulator 143 is connected to the airway assembly 141 and arranged on the side of the pressure regulator 142 away from the air inlet 12, and is used for regulating the oxygen flow; one end of the flow meter 144 is connected to the flow regulator 143, and the other end is connected to the air outlet 13.

[0062] It can be understood that the oxygen regulating structure 10 provided in the present application can automatically regulate the oxygen pressure and control the oxygen flow, and even count the oxygen usage, thereby providing protection for automatic control of oxygen supply.

[0063] In some preferable embodiments, the oxygen regulating mechanism 14 further comprises a flow stabilizer 145 arranged between the flow meter 144 and the airway assembly 141; it can be understood that, by arranging the flow stabilizer 145, the oxygen flow can be effectively stabilized to avoid turbulent flow of the oxygen flow, thereby providing protection for accurate measurement of the oxygen usage, significantly reducing the distance between the flow regulator 143 and the flow meter, effectively reducing the volume of the oxygen regulating structure 10, and being more conducive to miniaturization and multifunctionalization of the respiratory treatment equipment.

[0064] Please further refer to Figure 4 and Figure 6In another preferred embodiment, the flow stabilizer 145 comprises a connecting seat 1451, a flow stabilizing valve core 1452 and a flow stabilizing sleeve 1453. The connecting seat 1451 is connected to the air passage assembly 141. The flow stabilizing valve core 1452 is coaxially arranged with the connecting seat 1451 and is connected to the end of the connecting seat 1451 away from the air passage assembly 141 for stabilizing the oxygen flow. The flow stabilizing sleeve 1453 is sleeved on the connecting seat 1451 and the flow stabilizing valve core 1452 and is connected to the flow measurer 144.

[0065] Further, the connecting seat 1451 comprises an integrally formed connecting plate portion 1454 and a valve core connecting portion 1455. The connecting plate portion 1454 is connected to the air passage assembly 141 and is provided with an arc-shaped flow guiding port 1459. The valve core connecting portion 1455 is arranged on the side of the connecting plate portion 1454 away from the air passage assembly 141 for accommodating the flow stabilizing valve core 1452. The flow stabilizing valve core 1452 comprises an integrally connected valve core base ring 1456, a flow stabilizing ring hole portion 1457 and a flow stabilizing valve sheet 1458. The valve core base ring 1456 and the flow stabilizing ring hole portion 1457 are accommodated in the valve core connecting portion 1455 and are used for stabilizing the oxygen flow.

[0066] It can be understood that the valve core connecting portion 1455 is arranged as a hollow cylinder. The gas in the air passage assembly 141 enters the valve core connecting portion 1455 through the flow guiding port on the connecting plate portion 1454. The turbulent flow in the oxygen flow is blocked by the flow stabilizing valve sheet 1458 and the valve core connecting portion 1455 when passing through the flow stabilizing valve sheet 1458 and the flow stabilizing ring hole portion 1457. The turbulent flow is then combed by the flow stabilizing ring hole portion 1457 and enters the flow stabilizing sleeve 1453 to form a stable oxygen flow.

[0067] Please further refer to Figures 7 to 10 In another preferred embodiment, the air passage assembly 141 comprises an air passage body 1411, an air inlet passage 1412, a first air passage 1413 and a second air passage 1414. The air inlet passage 1412 is formed on the end of the air passage body 1411 close to the air inlet 12. One end of the first air passage 1413 is connected to the pressure regulator 142 and the other end thereof is connected to the flow stabilizer 145. One end of the second air passage 1414 is connected to the pressure regulator 142 and the other end thereof is connected to the first air passage 1413.

[0068] Further, the air passage assembly 141 further comprises a pressure regulator mounting portion 1415 and a flow regulator mounting portion 1416; the pressure regulator mounting portion 1415 is arranged as a concave circular groove between the air inlet passage 1412 and the first air passage 1413; the flow regulator mounting portion 1416 is arranged as an L-shaped groove between the second air passage 1414 and the flow stabilizer 145.

[0069] It can be understood that a plurality of air passages are arranged in the air passage body 1411, and oxygen in the external oxygen source enters the air passage body 1411 through the air inlet 12, first enters the air inlet passage 1412, reaches the pressure regulator mounting portion 1415, and enters the pressure regulator 142, and then the pressure of the oxygen is adjusted by the pressure regulator 142, and then part of the oxygen directly enters the flow measurer 144 through the first air passage 1413, or enters the flow measurer 144 after passing through the flow stabilizer 145; another part enters the flow regulator 143 through the second air passage 1414, and then directly enters the flow measurer 144 through the first air passage 1413, or enters the flow measurer 144 after passing through the flow stabilizer 145; thereby realizing the adjustment of the oxygen pressure and the oxygen flow.

[0070] In some other embodiments, the shell 11 comprises an outer shell 111 and a mounting bracket 112; the mounting bracket 112 is mounted in the outer shell 111 and is used to fix the air inlet 12, the air outlet 13 and the oxygen regulating mechanism 14. Further, the mounting bracket 112 is detachably connected with the outer shell 111, so that the air inlet 12, the air outlet 13 and the oxygen regulating mechanism 14 can be first mounted on the mounting bracket 112, and then the mounting bracket 112 is fixed in the outer shell 111, thereby facilitating the assembly of the oxygen regulating structure 10.

[0071] In some other preferred embodiments, the oxygen regulating structure 10 further comprises a control assembly 15. It can be understood that by arranging the oxygen regulating mechanism 14 in the oxygen regulating structure 10 and configuring the control assembly 15 electrically connected with the oxygen regulating mechanism 14, the oxygen supply condition is automatically controlled by the control assembly 15 to adjust the oxygen regulating mechanism 14, thereby significantly reducing the workload of medical staff and improving the treatment effect of patients.

[0072] Further, the control assembly 15 comprises a PCB board 151 and a controller; the PCB board 151 is connected with the pressure regulator, the flow regulator 143 and the flow measurer 144; the PCB board 151 is electrically connected with the controller, and the controller is provided with a control chip, and the model of the control chip in the application includes but is not limited to STM32F030C8T6. It can be understood that the controller connects and controls the pressure regulator 142, the flow regulator 143 and the flow measurer 144 through the PCB board 151, so as to control the oxygen supply; the flow measurer 144 feeds back the measured flow rate and gas volume information to the controller, and the controller actively adjusts the flow regulator 143 according to the received flow rate and gas volume information, so as to realize automatic control of the oxygen supply.

[0073] In some preferable embodiments, the mounting bracket 112 is provided in an L shape, comprising a vertical plate 1121 and a horizontal plate 1122 connected vertically; the vertical plate 1121 is provided with an air inlet mounting portion 1123 near one end of the horizontal plate 1122; the PCB board 151 is arranged on the end face of the horizontal plate 1122 away from the vertical plate 1121, and the air duct assembly 141, the flow controller and the air outlet 13 are arranged on the end face of the horizontal plate 1122 close to the vertical plate 1121.

[0074] Please further refer to Figures 11 to 13 In some preferable embodiments, the oxygen regulating mechanism 14 comprises a gas guide 146 and a one-way valve 147; one end of the gas guide 146 is connected with the air inlet 12, and the other end of the gas guide 146 is connected with the air outlet 18; the one-way valve 147 is arranged in the gas guide 146, and is used for controlling the gas guide 146 to be one-way conducted from the air inlet 12 to the air outlet 18; wherein the flow stabilizer 145 is arranged between the one-way valve 147 and the air inlet 12. It can be understood that by arranging the oxygen regulating mechanism 14 as the gas guide 146 and the one-way valve 147, the cost of the oxygen regulating mechanism 14 is effectively reduced; and by arranging the one-way valve 147, the reverse flow of the oxygen flow can be effectively avoided; further, the flow stabilizer 145 is arranged on the gas guide 146 between the air inlet 12 and the one-way valve.

[0075] It can be understood that by setting the flow stabilizer 145, the oxygen flow can be effectively stabilized, avoiding turbulent flow of the oxygen flow, so that the oxygen flow can flow smoothly in a shorter distance, thereby ensuring accurate measurement of the oxygen flow, effectively shortening the air guide channel 146 in the oxygen regulating structure, providing protection for accurate measurement of the oxygen usage, significantly reducing the distance between the flow regulator 143 and the flow measurer 144, effectively reducing the volume of the oxygen regulating structure, and being more conducive to miniaturization and multifunctionalization of the respiratory treatment device.

[0076] The second embodiment of the present application also provides a respiratory treatment device 1, wherein the respiratory treatment device 1 comprises the oxygen regulating structure 10 as described in the above embodiments of the present application. It can be understood that the respiratory treatment device 1 provided in the present application has the functions of oxygen supply and automatic adjustment of the oxygen supply by adopting the oxygen regulating structure 10 provided in the present application, thereby significantly reducing the workload of medical staff and improving the treatment effect of patients.

[0077] Compared with the prior art, the present application provides an oxygen regulating structure and a respiratory treatment device. The oxygen regulating structure comprises a shell, an air inlet provided on one end of the shell for connecting an oxygen source, an air outlet provided on the other end of the shell for connecting a patient end, and an oxygen regulating mechanism provided in the shell and connected between the air inlet and the air outlet, and further provided with a flow stabilizer. By setting the flow stabilizer, the oxygen flow can be effectively stabilized to avoid turbulent flow of the oxygen flow, so that the oxygen flow can flow smoothly in a shorter distance, thereby ensuring accurate measurement of the oxygen flow, effectively shortening the air channel length in the oxygen regulating structure, providing protection for accurate measurement of the oxygen usage, significantly reducing the distance between the flow regulator and the flow measurer, effectively reducing the volume of the oxygen regulating structure, and being more conducive to miniaturization and multifunctionalization of the respiratory treatment device.

[0078] It should be understood that the application of the present application is not limited to the above examples, and those skilled in the art can make improvements or changes according to the above description, and all these improvements and changes shall belong to the protection scope of the claims of the present application.

Claims

1. An oxygen-regulating structure, characterized by, The utility model relates to a kind of oxygen concentrator, including: Shell; Air inlet, which is provided on one end of the shell, for connecting oxygen source; Gas outlet, which is provided on the other end of the shell, for connecting patient end; Oxygen regulating mechanism, which is provided with flow stabilizer inside; Airway assembly, one end of which is connected to the air inlet; Pressure regulator, which is connected in the airway assembly, for adjusting oxygen pressure; Flow regulator, which is connected to airway assembly, and is provided on the side of pressure regulator away from the air inlet, for adjusting oxygen flow rate; Flow measurer, one end of which is connected to the flow regulator, and the other end is connected to the gas outlet; The flow stabilizer includes: Connecting seat, which includes integrally formed connecting plate part and valve core connecting part; The connecting plate part is connected to the airway assembly, and is provided with arc-shaped drainage port; The valve core connecting part is provided on the side of the connecting plate part away from the airway assembly, for accommodating the flow stabilizer valve core; Flow stabilizer valve core, which includes integrally connected valve core base ring, flow stabilizer ring hole part and flow stabilizer valve sheet, the valve core base ring and flow stabilizer ring hole part are accommodated in the valve core connecting part, and the valve core base ring and flow stabilizer ring hole part are used to stabilize oxygen flow; Flow stabilizer sleeve, one end of which is sleeved on the connecting seat and flow stabilizer valve core, and the other end of which is connected to the flow measurer; The airway assembly includes: Airway body; Air inlet, which is provided on one end of the airway body close to the air inlet; First airway, one end of which is connected to the pressure regulator, and the other end of which is connected to the flow stabilizer; Second airway, one end of which is connected to the pressure regulator, and the other end of which is connected to the first airway; Pressure regulator mounting part, which is provided as a concave circular groove between the air inlet and the first airway; Flow regulator mounting part, which is provided as an L-shaped groove between the second airway and the flow stabilizer; Oxygen enters the airway body through the air inlet, enters the air inlet to the pressure regulator mounting part, and enters the pressure regulator, and then the pressure of the oxygen is adjusted by the pressure regulator, part of which directly enters the flow measurer through the first airway, or enters the flow measurer after entering the flow stabilizer; Another part enters the flow regulator through the second airway, and then directly enters the flow measurer through the first airway, or enters the flow measurer after entering the flow stabilizer; Oxygen pressure and oxygen flow rate are adjusted. After the gas in the airway assembly enters the flow stabilizer, the process of entering the flow meter is as follows: entering the valve core connecting part through the drainage port on the connecting plate part, then the turbulence in the oxygen flow is blocked by the flow stabilizing valve sheet and the valve core connecting part when passing through the flow stabilizing valve sheet and the flow stabilizing ring hole part, then the turbulence is combed by the flow stabilizing ring hole part, then entering the flow stabilizing sleeve to form a stable oxygen flow, and then entering the flow meter; the distance between the flow regulator and the flow meter is reduced, and the volume of the oxygen regulating structure is reduced.

2. The oxygen adjusting structure according to claim 1, characterized by, The shell comprises: an outer shell; a mounting bracket mounted in the outer shell for fixing the air inlet, air outlet and oxygen regulating mechanism.

3. The oxygen adjusting structure according to claim 2, characterized by The oxygen regulating mechanism further comprises a control assembly, which comprises: a PCB board connected with the pressure regulator, flow regulator and flow meter; a controller electrically connected with the PCB board.

4. The oxygen adjusting structure according to claim 3, characterized by The oxygen regulating mechanism comprises: an airway, one end of which is connected with the air inlet and the other end of which is connected with the air outlet; a one-way valve arranged in the airway for controlling the airway to be one-way conducted from the air inlet to the air outlet; wherein the flow stabilizing valve is arranged between the one-way valve and the air inlet.

5. A respiratory treatment device, characterized by, The respiratory treatment device comprises the oxygen regulating mechanism according to any one of claims 1-4.

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