Humidifier for breathing machine and breathing machine

Abstract

The utility model discloses a humidifier for a breathing machine and the breathing machine. The humidifier comprises a shell, a cavity formed in the shell and an air channel structure arranged in the shell and communicated with the cavity. The cavity has the maximum water capacity, the air channel structure is provided with a first opening used for being communicated with the outside and a second opening communicated with the cavity, and according to the configuration of the first opening and the second opening, when the humidifier is horizontally placed, the cavity has the highest water level line corresponding to the maximum water capacity; the second opening is higher than the highest water line; when the humidifier inclines, the second opening is located below the first opening, and water is prevented from flowing backwards.

Description

Technical Field

[0001] The utility model relates to the field of medical devices, in particular to a humidifier for a ventilator and a ventilator. Background Art

[0002] Ventilators are usually used to relieve and improve symptoms such as snoring, hypoventilation, and sleep apnea during a patient's sleep. Common ventilators include a main unit assembly and a humidifier assembly. The humidifier assembly is arranged in the gas path, and water can be stored inside it to humidify the flowing gas, thereby avoiding discomfort caused by overly dry gas entering the patient's respiratory tract and improving the patient's comfort during use.

[0003] Since the humidifier is connected to the main unit gas path and there is water stored in the humidifier, when the humidifier is toppled or otherwise during use, the water in the humidifier may flow back to the main unit, which may then cause the main unit to be damaged by water ingress. Summary of the Utility Model

[0004] One of the purposes of the present utility model is to provide a humidifier for a ventilator to solve the technical problem of water backflow into the main unit when the humidifier is toppled in the prior art.

[0005] One of the purposes of the present utility model is to provide a ventilator.

[0006] To achieve one of the above-mentioned utility model purposes, an embodiment of the present utility model provides a humidifier for a ventilator, including a housing, a cavity formed inside the housing, and an airway structure arranged inside the housing and communicating with the cavity; the cavity has a maximum water capacity, the airway structure has a first opening for communicating with the outside and a second opening for communicating with the cavity, and the configuration of the first opening and the second opening is: when the humidifier is placed horizontally, the cavity has a highest water level line corresponding to the maximum water capacity, and the second opening is higher than the highest water level line; when the humidifier is tilted, the second opening is located below the first opening.

[0007] As a further improvement of an embodiment of the present utility model, the airway structure includes an intake pipe for gas to flow into the cavity and an outlet pipe for gas to flow out of the cavity; the intake pipe includes a first intake port and a first outlet port, and the outlet pipe includes a second intake port and a second outlet port; when the first opening is the first intake port, the second opening is the first outlet port; when the first opening is the second outlet port, the second opening is the second intake port.

[0008] As a further improvement of an embodiment of the present utility model, the intake pipe includes an inclined wall at the bottom, the contour of the first air outlet includes the end of the inclined wall, the inclined wall rises in the direction close to the first air outlet, and the end of the inclined wall is a straight edge; when the humidifier is placed horizontally, the straight edge is higher than the highest water level line.

[0009] As a further improvement of an embodiment of the present utility model, when the humidifier tilts to the first side, the second air inlet is located below the second air outlet.

[0010] As a further improvement of an embodiment of the present utility model, when the humidifier tilts to the first side, the cavity has a first abnormal water level line corresponding to the maximum water capacity, the first air outlet is located above the first air inlet, and the first air outlet is higher than the first abnormal water level line.

[0011] As a further improvement of an embodiment of the present utility model, the intake pipe includes a first waterproof wall provided at the first air outlet; when the humidifier tilts to the first side, the first waterproof wall has a waterproof surface higher than the first abnormal water level line.

[0012] As a further improvement of an embodiment of the present utility model, when the humidifier tilts to the second side, the first air outlet is located below the first air inlet.

[0013] As a further improvement of an embodiment of the present utility model, when the humidifier tilts to the second side, the cavity has a second abnormal water level line corresponding to the maximum water capacity, and the first air inlet is higher than the second abnormal water level line.

[0014] As a further improvement of an embodiment of the present utility model, the intake pipe includes a water leakage port provided at the first air outlet; when the humidifier tilts to the second side, the water leakage port is used for draining water downward.

[0015] As a further improvement of an embodiment of the present utility model, the intake pipe is a bent diversion pipe, and the intake pipe includes a first section, a second section, and a third section that are sequentially bent along the air flow path direction; the air flow direction of the first section is parallel and opposite to the air flow direction of the third section, and the third section includes the first air outlet, first waterproof walls located on opposite sides of the first air outlet, and a water leakage port.

[0016] As a further improvement of an embodiment of the present utility model, the air outlet pipe is arranged side by side and spaced apart from the first section in the horizontal direction, the third section is located between the first section and the air outlet pipe in the horizontal direction, the first waterproof wall is located on the side of the third section close to the first section, and the water leakage port is located on the side of the third section close to the air outlet pipe.

[0017] As a further improvement of an embodiment of the present utility model, the second section is inclined in the vertical direction, the third section is lower than the first section and the air outlet pipe in the vertical direction, and the included angle range formed by the second section and the horizontal plane is 5°-60°.

[0018] As a further improvement of an embodiment of the present utility model, the airway structure is integrally formed.

[0019] To achieve one of the above-mentioned utility model purposes, an embodiment of the present utility model further provides a ventilator, including a main machine, a breathing mask, and a humidifier for a ventilator according to any one of the above technical solutions. The main machine includes an air flow driving device, the air flow driving device is communicated with the air inlet pipe, and the breathing mask is communicated with the air outlet pipe.

[0020] Compared with the prior art, a humidifier for a ventilator provided by the present utility model has the following beneficial effects: The first opening and the second opening of the airway structure are configured such that when it is tilted, the second opening remains below the first opening. In this way, water cannot flow back upward through the second opening to the first opening, reducing the probability of water backflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a perspective view of the humidifier in an embodiment of the present utility model.

[0022] Figure 2 is a perspective view of the humidifier from another angle in an embodiment of the present utility model.

[0023] Figure 3 is a schematic diagram of the humidifier in an open state in an embodiment of the present utility model.

[0024] Figure 4 is a schematic diagram of removing the airway structure when the humidifier is in an open state in an embodiment of the present utility model.

[0025] Figure 5 is an exploded view of the humidifier in an embodiment of the present utility model.

[0026] Figure 6 is a schematic diagram of the airway structure in an embodiment of the present utility model.

[0027] Figure 7 is a schematic diagram of the airway structure from another angle in an embodiment of the present utility model.

[0028] Figure 8 is a cross-sectional view of the humidifier in the front-rear direction in an embodiment of the present utility model.

[0029] Figure 9It is a cross-sectional view of the humidifier in a left-right direction in an embodiment of the present utility model.

[0030] Figure 10 It is a cross-sectional view of the humidifier in another angle in a left-right direction in an embodiment of the present utility model.

[0031] Figure 11 It is a schematic diagram of the humidifier tilting to the first side in an embodiment of the present utility model.

[0032] Figure 12 It is a schematic diagram of the humidifier tilting to the second side in an embodiment of the present utility model. Specific Embodiments

[0033] The present utility model will be described in detail below in conjunction with the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present utility model, and any structural, method, or functional transformation made by those of ordinary skill in the art based on these embodiments is included within the protection scope of the present utility model.

[0034] Spatial relative position terms used herein, such as "upper", "above", "lower", "below", etc., are for the purpose of facilitating description to describe the relationship of one unit or feature relative to another unit or feature as shown in the accompanying drawings. The spatial relative position terms are intended to include different orientations of the device in use or operation other than the orientation shown in the figures. For example, if the device in the figure is flipped, the unit described as being "below" or "beneath" other units or features will be "above" other units or features. Therefore, the exemplary term "below" can encompass both the upper and lower orientations. The device can be oriented in other ways (rotated 90 degrees or other orientations), and the spatially related descriptive terms used herein can be interpreted accordingly.

[0035] The present utility model provides a humidifier 100 for a ventilator. Please refer to Figure 1-2 the structural schematic diagram. The humidifier 100 has an air inlet end 101 and an air outlet end 102. After the gas flows through the inside of the humidifier 100, it is humidified and then enters the patient's respiratory tract, improving the patient's comfort during use.

[0036] The present utility model also provides a ventilator, including a main unit, a breathing mask, and the humidifier 100. The main unit includes an air flow driving device, the air flow driving device is connected to the air inlet end 101 of the humidifier 100, and the breathing mask is connected to the air outlet end 102 of the humidifier 100.

[0037] Thus, when the ventilator is working, the air flow driving device drives the gas to enter the humidifier 100 through the air inlet end 101, mixes with the water vapor generated by heating the stored water in the humidifier 100, and then supplies it to the breathing mask end through the air outlet end 102, providing humidified air supply to the patient. In one embodiment, the air flow driving device is usually a turbine fan. When the turbine fan works, it rotates at a high speed to transfer mechanical energy to the gas and convert it into the kinetic energy of the gas.

[0038] In one embodiment, the humidifier 100 includes a housing 10, a cavity 103 formed in the housing 10, and an airway structure 20 disposed in the housing 10 and communicating with the cavity 103. The airway structure 20 includes an intake pipe 30 for gas to flow into the cavity 103 and an outlet pipe 40 for gas to flow out of the cavity 103.

[0039] Specifically, as shown in Figure 3-5 the housing 10 includes a first housing 11 and a second housing 13. The first housing 11 and the second housing 13 are assembled along the vertical direction and jointly enclose to form the cavity 103. The cavity 103 includes a first cavity 1031 located in the first housing 11 and a second cavity 1032 located in the second housing 13. The airway structure 20 is disposed in the first cavity 1031, and the second cavity 1032 is used for storing water. The cavity 103 has a rated maximum water capacity, and usually, a mark of the highest water level line is set on the housing 10.

[0040] One end of the first housing 11 and the second housing 13 is rotatably connected, specifically through a rotating shaft. The other end of the first housing 11 can be opened or closed relative to the other end of the second housing 13 to open or close the second cavity 1032, which is convenient for adding water or repairing and disassembling the airway structure 20.

[0041] A sealing strip 50 is provided between the first housing 11 and the second housing 13. When the first housing 11 and the second housing 13 are in the closed and buckled state, the sealing strip 50 is in a compressed state, which can achieve the seal between the first cavity 1031 and the second cavity 1032 of the humidifier and prevent gas leakage and sound leakage from the inside of the humidifier 100 cavity to the outside.

[0042] The first housing 11 is provided with the air inlet end 101 and the air outlet 103. The air inlet end 101 is communicated with the intake pipe 30 of the airway structure 20. In other words, one end of the air inlet end 101 is connected to the air flow driving device, and the other end is connected to the intake pipe 30, so as to input gas into the first cavity 1031. Specifically, a plug-in portion is provided on the inner wall surface of the first housing 11 corresponding to the air inlet end 101. The intake pipe 30 is in plug-in and sealing cooperation with the plug-in portion. If the humidifier is in a tilted state, the water in the cavity 103 cannot enter the intake pipe 30 or the air inlet end 101 through the connection between the intake pipe 30 and the plug-in portion, preventing water from flowing back into the air flow driving device.

[0043] The outlet pipe 40 of the airway structure 20 is communicated with the air outlet end 102. In other words, one end of the air outlet is connected to the outlet pipe 40, and the other end is connected to the breathing mask, so as to output the humidified gas from the first cavity 1031 and output it to the breathing mask. Specifically, a plug-in portion is provided on the inner wall surface of the first housing 11 corresponding to the air outlet end 102. The outlet pipe 40 is in plug-in and sealing cooperation with the plug-in portion. If the humidifier is in a tilted state, the water in the cavity 103 cannot enter the outlet pipe 40 or the air outlet end 102 through the connection between the outlet pipe 40 and the plug-in portion, preventing water from directly flowing back into the breathing mask.

[0044] In one embodiment, the airway structure 20 is integrally formed, with a simple structure and simple process.

[0045] In one embodiment, the airway structure 20 is detachably fixed to the first housing 11.

[0046] The airway structure 20 has a first snap structure 21, and the housing 10 has a second snap structure 111 that cooperates with the first snap structure 21.

[0047] Specifically, as shown in Figure 6-7 Figures 9-10, the front end of the airway structure 20 is plugged and fixed to the front wall of the first housing through the intake pipe 30 and the outlet pipe 40. The first snap structure 21 is provided at the rear end of the airway structure 20. The first snap structure 21 includes an elastic wall 211 and a hook 212. The elastic wall 211 extends downward and backward obliquely. The second snap structure 111 includes a hook groove provided on the rear wall of the first housing 11. The hook 212 is snap-fitted and fixed in the hook groove.

[0048] The provision of the elastic wall 211 is conducive to the subsequent disassembly of the airway structure 20. By pressing the elastic wall 211 forcefully, the hook 212 can be disengaged from the hook groove, and then the front end of the airway structure 20 can be pulled out from the front wall of the first housing 11. In this way, the airway structure 20 can be detachably installed and fixed, facilitating the user to disassemble the airway structure 20 and facilitating the cleaning of the interior of the humidifier 100.

[0049] The airway structure 20 has a first positioning structure 22, and the housing 10 has a second positioning structure 113 that cooperates with the first positioning structure 22.

[0050] Specifically, the first positioning structure 22 includes a positioning groove provided at the center of the top of the airway structure 20, and the second positioning structure 113 includes a positioning block provided on the top wall of the first housing 11. After the positioning groove and the positioning block are assembled and matched, the airway structure 20 is limited.

[0051] In one embodiment, the airway structure 20 has a first opening for communicating with the outside and a second opening for communicating with the cavity 103. In other words, the first opening is used to communicate with the intake end 101 or the outlet end 102, and the second opening is located inside the cavity 103.

[0052] The configurations of the first opening and the second opening are as follows: when the humidifier 100 is placed horizontally, the cavity 103 has a highest water level line M1 corresponding to the maximum water capacity, and the second opening is higher than the highest water level line M1. In this way, water in the cavity 103 is prevented from entering the second opening and then entering the cavity 103.

[0053] The configurations of the first opening and the second opening are as follows: when the humidifier 100 is tilted, the second opening is located below the first opening. In this way, the water in the cavity 103 cannot flow back upward through the second opening to the first opening, reducing the probability of water backflow. It should be noted that the water in the cavity 103 described herein can also be other liquids.

[0054] In one embodiment, the airway structure 20 includes an intake pipe 30 for gas to flow into the cavity 103 and an outlet pipe 40 for gas to flow out of the cavity 103; the intake pipe 30 includes a first intake port 301 and a first outlet port 302, and the outlet pipe 40 includes a second intake port 402 and a second outlet port 401; when the first opening is the first intake port 301, the second opening is the first outlet port 302; when the first opening is the second outlet port 401, the second opening is the second intake port 402.

[0055] In one embodiment, the intake pipe 30 is a bent diversion pipe. The intake pipe 30 includes a first section 31, a second section 32, and a third section 33 that are sequentially bent along the gas flow path direction; the gas flow direction of the first section 31 is parallel to and opposite to the gas flow direction of the third section 33. The first section 31 includes the first intake port 301, and the third section 33 includes the first outlet port 302.

[0056] The intake pipe 30 includes an inclined wall 34 at the bottom. The contour of the first air outlet 301 includes the end of the inclined wall 34. The inclined wall 34 rises in the direction close to the first air outlet 301, and the end of the inclined wall 34 is a straight edge; when the humidifier 100 is placed horizontally, the straight edge is higher than the highest water level line M1.

[0057] As shown in combination Figure 8 shown, the inclined wall 34 is arranged at the bottom of the third section 33. The inclined wall 34 gradually rises along the axial direction of the third section 33 towards the first air outlet 301. Therefore, the straight edge of the inclined wall 34 is the highest and can be used to prevent water flow from entering; in other words, the horizontal line L1 corresponding to the straight edge of the inclined wall 34 is higher than the highest water level line M1, and the height difference between the two is greater than or equal to 3 mm.

[0058] The third section 33 further includes first waterproof walls 35 and a water leakage port 303 located on opposite sides of the first air outlet 302. The first waterproof walls 35 and the water leakage port 303 are also located on both sides of the inclined wall 34 in the circumferential direction.

[0059] The second section 32 is inclined in the vertical direction. The third section 33 is lower than the first section 31 and the air outlet pipe 40 in the vertical direction. The included angle between the second section 32 and the horizontal plane ranges from 5° to 60°. Thus, the included angle between the second air inlet 402 of the air outlet pipe 40 and the horizontal plane ranges from 5° to 60°. Thus, when the water in the humidifier 100 enters the air outlet pipe 40 from the first air outlet 301 of the intake pipe 30, it will not directly flow out from the second air inlet 402 of the air outlet pipe 40.

[0060] The air outlet pipe 40 is arranged side by side and spaced apart from the first section 31 in the horizontal direction. The third section 33 is located between the first section 31 and the air outlet pipe 40 in the horizontal direction. The first waterproof wall 35 is located on the side of the third section 33 close to the first section 31, and the water leakage port 303 is located on the other side of the third section 33 close to the air outlet pipe 40.

[0061] As shown in combination Figure 7 shown, the second air inlet 402 of the air outlet pipe 40 is parallel and higher than the second section 32. In other words, the second air inlet 402 is formed by bending and extending from one end of the air outlet pipe 40, and a second air outlet 401 is arranged at the other end of the air outlet pipe 40.

[0062] The humidifier in this case has an anti-backflow function, specifically:

[0063] When the humidifier 100 tilts to the first side, the second air inlet 302 is located below the second air outlet 301, and water cannot enter the air outlet pipe 40 through the second air inlet. The first air inlet 301 is lower than the first air outlet 302, but water cannot enter the first air outlet 302, so it cannot enter the air inlet pipe 30.

[0064] Combined Figure 11 As shown, when the humidifier 100 tilts to the first side (right side), the cavity 103 has a first abnormal water level line M2 corresponding to the maximum water capacity. The first air outlet 302 is located above the first air inlet 301, and the first air outlet 302 is higher than the first abnormal water level line M2.

[0065] Specifically, the horizontal line L2 corresponding to the first air outlet 302 is higher than the first abnormal water level line M2, and the height difference between the two is greater than or equal to 3 mm.

[0066] Specifically, the first waterproof wall 35 provided at the first air outlet 302 of the air inlet pipe 30 has a waterproof surface higher than the first abnormal water level line. In other words, the waterproof surface corresponding to the first waterproof wall 35 coincides with the horizontal line L2.

[0067] When the humidifier 100 tilts to the second side (left side), the first air outlet 302 is located below the first air inlet 301, and water cannot enter the air inlet pipe 30 through the first air outlet 302.

[0068] When the humidifier 100 tilts to the second side, the cavity 103 has a second abnormal water level line M3 corresponding to the maximum water capacity, and the first air inlet 301 is higher than the second abnormal water level line M3.

[0069] Specifically, the lowest horizontal line L3 corresponding to the first air inlet 301 is higher than the second abnormal water level line M3, and the height difference between the two is greater than or equal to 3 mm.

[0070] The air inlet pipe 30 includes a water leakage port 303 provided at the first air outlet 302. Thus, when the humidifier tilts to the second side, the first air outlet 302 is immersed in water, and water can also be drained downward through the water leakage port.

[0071] The beneficial effect of the present utility model is that the first opening and the second opening of the air duct structure are configured such that when tilted, the second opening remains below the first opening. Thus, water cannot flow back upward through the second opening to the first opening, reducing the probability of water backflow.

[0072] It should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0073] The series of detailed descriptions listed above are only specific descriptions of the feasible embodiments of the present invention, and they are not intended to limit the protection scope of the present invention. Any equivalent embodiments or changes made without departing from the technical spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A humidifier for a ventilator, characterized in that, It includes a housing, a cavity formed within the housing, and an air passage structure disposed within the housing and communicating with the cavity; the cavity has a maximum water capacity, the air passage structure has a first opening for communicating with the outside and a second opening for communicating with the cavity, and the configuration of the first opening and the second opening is such that when the humidifier is placed horizontally, the cavity has a highest water level line corresponding to the maximum water capacity, and the second opening is higher than the highest water level line; when the humidifier is tilted, the second opening is located below the first opening.

2. The humidifier for a ventilator according to claim 1, wherein The air passage structure includes an intake pipe for allowing gas to flow into the cavity and an exhaust pipe for allowing gas to flow out of the cavity; the intake pipe includes a first air inlet and a first air outlet, and the exhaust pipe includes a second air inlet and a second air outlet; when the first opening is the first air inlet, the second opening is the first air outlet; when the first opening is the second air outlet, the second opening is the second air inlet.

3. The humidifier for a ventilator according to claim 2, wherein, The intake pipe includes an inclined wall at the bottom, the contour of the first air outlet includes the end of the inclined wall, the inclined wall rises in the direction close to the first air outlet, and the end of the inclined wall is a straight edge; when the humidifier is placed horizontally, the straight edge is higher than the highest water level line.

4. The humidifier for a ventilator according to claim 2, wherein When the humidifier is tilted to the first side, the second air inlet is located below the second air outlet.

5. The humidifier for a ventilator according to claim 4, wherein, When the humidifier is tilted to the first side, the cavity has a first abnormal water level line corresponding to the maximum water capacity, the first air outlet is located above the first air inlet, and the first air outlet is higher than the first abnormal water level line.

6. The humidifier for a ventilator according to claim 5, characterized in that, The intake pipe includes a first waterproof wall disposed at the first air outlet; when the humidifier is tilted to the first side, the first waterproof wall has a waterproof surface higher than the first abnormal water level line.

7. The humidifier for a ventilator according to claim 2, characterized in that, When the humidifier is tilted to the second side, the first air outlet is located below the first air inlet.

8. The humidifier for a ventilator according to claim 7, characterized in that, When the humidifier is tilted to the second side, the cavity has a second abnormal water level line corresponding to the maximum water capacity, and the first air inlet is higher than the second abnormal water level line.

9. The humidifier for a ventilator according to claim 7, characterized in that, The intake pipe includes a water leakage port disposed at the first air outlet; when the humidifier is tilted to the second side, the water leakage port is used for draining water downward.

10. The humidifier for a ventilator according to claim 2, wherein, The intake pipe is a bent diversion pipe, and the intake pipe includes a first section, a second section, and a third section that are sequentially bent along the air flow path direction; the air flow direction of the first section is parallel and opposite to that of the third section, and the third section includes the first air outlet, first waterproof walls located on opposite sides of the first air outlet, and a water leakage port.

11. The humidifier for a ventilator according to claim 10, characterized in that, The exhaust pipe is arranged side by side and spaced horizontally from the first section, the third section is horizontally located between the first section and the exhaust pipe, the first waterproof wall is located on the side of the third section close to the first section, and the water leakage port is located on the side of the third section close to the exhaust pipe.

12. The humidifier for a ventilator according to claim 10, wherein, The second section is inclined in the vertical direction, the third section is lower than the first section and the exhaust pipe in the vertical direction, and the included angle formed by the second section and the horizontal plane ranges from 5° to 60°.

13. The humidifier for a ventilator according to claim 1, characterized in that, The air passage structure is integrally formed.

14. A ventilator, characterized in that: Comprising a main body, a breathing mask, and a humidifier for a ventilator according to any one of claims 1-13, the main body includes an air flow driving device, the air flow driving device is communicated with the air inlet pipe, and the breathing mask is communicated with the air outlet pipe.

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