Positive and negative pressure nasal irrigator
The nasal irrigator design, which combines positive and negative pressure, solves the problem of poor fluid flow in the nasal cavity, achieving smooth flow of the cleaning solution and a comfortable user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-14
- Publication Date
- 2026-04-03
AI Technical Summary
Existing nasal irrigators do not allow for proper fluid flow within the nasal cavity, which can easily lead to blockages. Furthermore, forced positive pressure may cause the fluid to flow to other areas, posing a safety hazard.
The nasal irrigator features a positive and negative pressure design, providing positive pressure through the water outlet and negative pressure through the waste liquid return outlet, working together to clean the nasal cavity and ensure smooth flow of the cleaning solution.
It significantly improves the flow efficiency of the nasal cleaning solution, preventing blockage and making the user experience more comfortable.
Smart Images

Figure CN224070812U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of nasal irrigators, and in particular to a positive and negative pressure nasal irrigator. Background Technology
[0002] A nasal irrigator is a tool used to clean the nasal cavity. Its structure is as disclosed in the patent document with publication number CN106265042B. It mainly includes a water pump and a battery. However, this solution has some problems in actual use. This solution only has one water pump for the flow of liquid in the nasal cavity. That is, it creates positive pressure in the nasal cavity to make the liquid flow. However, for users who need to clean their nasal cavity normally, the nasal cavity is usually not very clear, or even blocked. If positive pressure is only created inside, the liquid may not be able to flow out of the other nostril normally. Moreover, the forced positive pressure causes the liquid to flow to other places, causing serious consequences. Utility Model Content
[0003] To address the aforementioned technical problems, this invention provides a positive and negative pressure nasal irrigator. The water outlet provides positive pressure, while the waste liquid return outlet provides negative pressure. The combined positive and negative pressure effectively cleanses the nasal cavity, significantly improving the flow efficiency of the cleaning solution and preventing blockage, thus providing greater comfort.
[0004] The technical solution adopted by this utility model to solve its technical problem is: a positive and negative pressure nasal irrigator, including a body;
[0005] The machine body is equipped with a water pump, a negative pressure pump, a battery, a flushing head, a waste liquid return head, a clean liquid tank, and a waste liquid tank;
[0006] The water pump and the negative pressure pump are electrically connected to the battery;
[0007] The flushing head is provided with a water outlet, and the waste liquid return head is provided with a waste liquid return hole. The water outlet and the waste liquid return hole are distributed side by side, corresponding to two nostrils.
[0008] The water pump outlet is connected to the water outlet hole via a water pipe, and the water pump inlet is connected to the clear liquid tank via a water pipe.
[0009] The air inlet of the negative pressure pump is connected to the top of the waste liquid tank through an air pipe. The waste liquid tank is connected to the waste liquid return hole, and the air outlet of the negative pressure pump is connected to the atmosphere.
[0010] During use, plug the water outlet of the rinsing head and the waste liquid return hole of the waste liquid return head into the corresponding nostrils. The clean liquid is pumped to the rinsing head and enters one nostril to clean the nasal cavity. The waste liquid flows out of the other nostril and into the waste liquid return hole of the waste liquid return head. Because the air inlet of the negative pressure pump is connected to the upper part of the waste liquid chamber, and the waste liquid chamber is connected to the waste liquid return head, the negative pressure generated by the negative pressure pump creates negative pressure in the waste liquid return hole, drawing the waste liquid from the return hole into the waste liquid chamber. Since the trachea is connected to the top of the waste liquid chamber, the waste liquid does not flow directly out of the trachea but sinks to the bottom of the waste liquid chamber for collection. The water outlet provides positive pressure, and the waste liquid return hole provides negative pressure; the combined positive and negative pressures effectively clean the nasal cavity, significantly improving the flow efficiency of the cleaning solution and preventing blockage, resulting in greater comfort.
[0011] Preferably, the flushing head and the waste liquid return head are made of silicone and are integrally formed on a silicone tank cover, which is fastened to the upper opening of the waste liquid tank. This results in a more compact overall structure and a more comfortable silicone material.
[0012] Preferably, the inner wall of the silicone chamber cover is provided with a top cavity, the upper end of the air tube extends into the top cavity, and the lower opening of the top cavity is provided with a highly elastic partition that is interference-fitted with the side wall of the air tube. The highly elastic partition and the air tube are not directly connected, but are only interference-fitted together. Under the negative pressure of the air tube, the gas in the waste liquid chamber can also pass through the gap between the highly elastic partition and the air tube to enter, thereby preventing waste liquid from entering the air tube when the negative pressure pump is not working.
[0013] Preferably, the machine body is provided with a circuit board for electrical connection with the water pump, negative pressure pump, and battery. The circuit board is provided with control buttons, and the control buttons are made of silicone. This allows the control buttons to be waterproofed and provides a better feel.
[0014] Preferably, the machine body includes, from top to bottom, a rinsing section, a main control section, and a liquid storage section. The rinsing section is equipped with a waste liquid tank, a rinsing head, and a waste liquid return head. The main control section is equipped with a water pump, a negative pressure pump, and a battery. The liquid storage section is equipped with a clear liquid tank. The overall structure is more compact and portable.
[0015] Preferably, a display screen is provided between each of the control buttons, and the periphery of the display screen is adapted to the silicone buttons. This provides protection and shock absorption for the display screen and also has a waterproof effect.
[0016] Preferably, the clear liquid tank is equipped with a temperature sensor electrically connected to the circuit board, which can detect the temperature of the clear liquid tank.
[0017] Preferably, the main control section is equipped with a speaker connected to the circuit board. The speaker can provide voice prompts for operation.
[0018] Preferably, the temperature sensor and the main control section are press-fitted with a silicone sealing ring. This improves the sealing effect between the temperature sensor and the clear liquid tank.
[0019] Preferably, the side wall of the device is provided with a charging port and unlock / lock indicators, and the charging port is provided with a silicone sealing cover. This can improve its waterproof effect.
[0020] Advantages of this utility model:
[0021] This design provides positive pressure at the water outlet and negative pressure at the waste liquid return outlet. The combination of these two pressures effectively cleans the nasal cavity, significantly improving the flow efficiency of the cleaning solution and preventing blockages, thus providing greater comfort. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only four of the drawings in this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0023] Figure 1 This is a cross-sectional view of an embodiment of the present utility model;
[0024] Figure 2 This is a longitudinal sectional view of an embodiment of the present utility model;
[0025] Figure 3 This is an exploded view of an embodiment of the present utility model;
[0026] Figure 4 This is a schematic diagram of the main control section and the liquid storage section in an embodiment of the present utility model;
[0027] The components include: 1. Water pump; 2. Water pipe; 3. Negative pressure pump; 4. Battery; 5. Flushing head; 6. Water outlet; 7. Waste liquid return head; 8. Waste liquid return hole; 9. Clean liquid tank; 10. Waste liquid tank; 11. Silicone tank cover; 12. Top cavity; 13. High elasticity partition; 14. Air pipe; 15. Circuit board; 16. Silicone button; 17. Display screen; 18. Temperature sensor; 19. Speaker; 20. Silicone sealing cover; 21. Charging port. Detailed Implementation
[0028] To enhance understanding of this utility model, it will be described in further detail below with reference to the accompanying drawings and embodiments. These embodiments are only used to explain this utility model and do not limit the scope of protection of this utility model.
[0029] Example
[0030] like Figure 1 As shown, a positive and negative pressure nasal irrigator includes a body; the body is equipped with a water pump 1, a negative pressure pump 3, a battery 4, an irrigating head 5, a waste liquid return head 7, a clean liquid chamber 9, and a waste liquid chamber 10; the water pump 1 and the negative pressure pump 3 are electrically connected to the battery 4; the irrigating head 5 is provided with a water outlet 6, and the waste liquid return head 7 is provided with a waste liquid return hole 8, the water outlet 6 and the waste liquid return hole 8 are arranged side by side corresponding to two nostrils; the water outlet of the water pump 1 is connected to the water outlet 6 through a water pipe 2, and the water inlet of the water pump 1 is connected to the clean liquid chamber 9 through a water pipe 2; the air inlet of the negative pressure pump 3 is connected to the top of the waste liquid chamber 10 through an air pipe 14, the waste liquid chamber 10 is connected to the waste liquid return hole 8, and the air outlet of the negative pressure pump 3 is connected to the atmosphere.
[0031] When using the device, plug the water outlet 6 of the rinsing head 5 and the waste liquid return hole 8 of the waste liquid return head 7 into the two nostrils respectively. The clean liquid is sent to the rinsing head 5 by the water pump 1 and enters one of the nostrils to clean the nasal cavity. The waste liquid after cleaning flows out from the other nostril and enters the waste liquid return hole 8 of the waste liquid return head 7. Because the air inlet of the negative pressure pump 3 is connected to the upper part of the waste liquid chamber 10 and the waste liquid chamber 10 is connected to the waste liquid return head 7, the negative pressure generated by the negative pressure pump 3 will create a negative pressure in the waste liquid return hole 8 through the waste liquid chamber 10, thereby drawing the waste liquid at the waste liquid return hole 8 into the waste liquid chamber 10. Since the air tube 14 is connected to the top of the waste liquid chamber 10, the waste liquid will not flow out directly from the air tube 14, but will first sink to the bottom of the waste liquid chamber 10 for collection. The water outlet 6 provides positive pressure, and the waste liquid return outlet 8 provides negative pressure. The combination of positive and negative pressures enables the nasal cavity to be cleaned, which can significantly improve the flow efficiency of the cleaning solution in the nasal cavity, prevent blockage, and make it more comfortable.
[0032] The flushing head 5 and the waste liquid return head 7 are made of silicone and are integrally set on the silicone tank cover 11, which is fastened to the upper opening of the waste liquid tank 10. The overall structure is more compact, and the silicone material is more comfortable.
[0033] The inner wall of the silicone chamber cover 11 is provided with a top cavity 12. The upper end of the air pipe 14 extends into the top cavity 12. The lower opening of the top cavity 12 is provided with a highly elastic partition 13 that is interference-fitted with the side wall of the air pipe 14. The highly elastic partition 13 and the air pipe 14 are not directly connected, but are only interference-fitted together. Under the negative pressure of the air pipe 14, the gas in the waste liquid chamber 10 can also pass through the gap between the highly elastic partition 13 and the air pipe 14 to enter. This can prevent waste liquid from entering the air pipe 14 when the negative pressure pump 3 is not working.
[0034] The machine body is equipped with a circuit board 15 for electrical connection with the water pump 1, the negative pressure pump 3, and the battery 4. The circuit board 15 is equipped with control buttons, which are silicone buttons 16. The control buttons are waterproof and have a better feel.
[0035] The device body comprises, from top to bottom, a rinsing section, a main control section, and a liquid storage section. The rinsing section includes a waste liquid tank 10, a rinsing head 5, and a waste liquid return head 7. The main control section includes a water pump 1, a negative pressure pump 3, and a battery 4. The liquid storage section includes a clear liquid tank 9. The rinsing section, main control section, and clear liquid section are ultrasonically welded together, and sealing rings are provided at the joints of each section. The overall structure is more compact and portable, and offers better waterproofing.
[0036] A display screen 17 is provided between each of the control buttons, and the periphery of the display screen 17 is adapted to the silicone buttons 16. This provides protection and shock absorption for the display screen 17 and also serves a waterproof function.
[0037] The clear liquid tank 9 is equipped with a temperature sensor 18 electrically connected to the circuit board 15, and the main control section is equipped with a speaker 19 connected to the circuit board 15. The temperature of the clear liquid tank 9 can be detected, and the speaker 19 can provide voice prompts for operation.
[0038] The temperature sensor 18 and the main control section are press-fitted with a silicone sealing ring. This improves the sealing effect between the temperature sensor 18 and the clear liquid tank 9.
[0039] The side wall of the device is provided with a charging port 21 and unlock / lock indicators. The charging port 21 is provided with a silicone sealing cover 20, which can improve its waterproof effect.
[0040] Advantages of this utility model:
[0041] The solution provides positive pressure at the water outlet 6 and negative pressure at the waste liquid return outlet 8. The combination of positive and negative pressures enables nasal cleaning, which can significantly improve the flow efficiency of the cleaning solution in the nasal cavity, prevent blockage, and make it more comfortable.
[0042] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0043] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.
Claims
1. A positive and negative pressure nasal irrigator, characterized in that, Including the body; The machine body is equipped with a water pump (1), a negative pressure pump (3), a battery (4), a flushing head (5), a waste liquid return head (7), a clean liquid tank (9) and a waste liquid tank (10); The water pump (1) and the negative pressure pump (3) are electrically connected to the battery (4); The flushing head (5) is provided with a water outlet (6), and the waste liquid return head (7) is provided with a waste liquid return hole (8). The water outlet (6) and the waste liquid return hole (8) are arranged side by side for the two nostrils. The outlet of the water pump (1) is connected to the outlet hole (6) through the water pipe (2), and the inlet of the water pump (1) is connected to the clear liquid tank (9) through the water pipe (2). The air inlet of the negative pressure pump (3) is connected to the top of the waste liquid tank (10) through the air pipe (14), the waste liquid tank (10) is connected to the waste liquid return hole (8), and the air outlet of the negative pressure pump (3) is connected to the atmosphere.
2. The positive and negative pressure nasal irrigator according to claim 1, characterized in that: The flushing head (5) and the waste liquid return head (7) are made of silicone and are integrally set on the silicone tank cover (11), which is fastened to the upper opening of the waste liquid tank (10).
3. A positive and negative pressure nasal irrigator according to claim 2, characterized in that: The inner wall of the silicone chamber cover (11) is provided with a top cavity (12), the upper end of the air tube (14) extends into the top cavity (12), and the lower cavity of the top cavity (12) is provided with a highly elastic partition (13) that is interference-fitted with the side wall of the air tube (14).
4. A positive and negative pressure nasal irrigator according to claim 1, characterized in that: The machine body is provided with a circuit board (15) for electrical connection with the water pump (1), the negative pressure pump (3) and the battery (4). The circuit board (15) is provided with control buttons, and the control buttons are provided with silicone buttons (16).
5. A positive and negative pressure nasal irrigator according to claim 4, characterized in that: The machine body includes a flushing section, a main control section and a liquid storage section from top to bottom. The flushing section is equipped with the waste liquid tank (10), a flushing head (5) and a waste liquid return head (7). The main control section is equipped with the water pump (1), a negative pressure pump (3) and a battery (4). The liquid storage section is equipped with the clear liquid tank (9).
6. A positive and negative pressure nasal irrigator according to claim 5, characterized in that: A display screen (17) is provided between each of the control buttons, and the periphery of the display screen (17) is adapted to the silicone button (16).
7. A positive and negative pressure nasal irrigator according to claim 6, characterized in that: The clear liquid tank (9) is equipped with a temperature sensor (18) electrically connected to the circuit board (15).
8. A positive and negative pressure nasal irrigator according to claim 7, characterized in that: The main control section is equipped with a speaker (19) connected to the circuit board (15).
9. A positive and negative pressure nasal irrigator according to claim 7, characterized in that: The temperature sensor (18) and the main control section are fitted with a silicone sealing ring.
10. A positive and negative pressure nasal irrigator according to claim 1, characterized in that: The side wall of the body is provided with a charging port (21) and an unlocking / locking mark, and the charging port (21) is provided with a silicone sealing cover (20).
Citation Information
Patent Citations
Nasal wash
CN106265042B