A nasal wash device
By adding a flow rate limiting mechanism and a reversible temperature sticker to the nasal irrigator, the problem of improper flow rate and temperature control of the nasal irrigator is solved, achieving safe and comfortable nasal irrigation and promoting nasal mucosal healing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINGDEZHEN SECOND PEOPLES HOSPITAL
- Filing Date
- 2025-02-25
- Publication Date
- 2026-07-14
AI Technical Summary
Existing nasal irrigators are prone to causing excessive flow of rinsing fluid when manually squeezed by the patient, which may flow into the Eustachian tube and cause wound infection. In addition, the temperature control is inaccurate, which affects the healing of the nasal mucosa.
Add a flow rate limiting mechanism and a reversible temperature sticker to the nasal irrigator's irrigation tube. The flow rate limiting mechanism adjusts the flow rate via a spring valve or J-type stop to prevent excessive flow. The reversible temperature sticker displays the temperature to ensure the liquid temperature is appropriate.
It effectively avoids the risk of irrigation fluid entering the Eustachian tube, reduces wound infection, ensures a suitable temperature, and promotes nasal mucosal healing.
Smart Images

Figure CN224484493U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of nasal irrigation devices, specifically to a nasal irrigator. Background Technology
[0002] Regular nasal irrigation during the recovery period after nasal surgery helps drain secretions, maintains nasal cleanliness, ensures unobstructed sinus drainage, eliminates nasal congestion and edema, promotes nasal mucosal healing, effectively controls infection, prevents nasal adhesions, and shortens the postoperative recovery period, thus improving the cure rate. Clinically, professional automatic irrigation equipment is generally used to irrigate the patient's nasal cavity. This equipment can automatically adjust the flow rate and temperature of the irrigation water. However, after discharge, patients usually can only use simple nasal irrigators. These irrigators have a simple structure and single function, and patients usually need to manually squeeze the irrigator container to allow the irrigation solution to flow into the nasal cavity. Because it is manually controlled, patients often use too much force, resulting in excessive irrigation force, which can cause the irrigation solution to flow into the Eustachian tube, causing discomfort and increasing the risk of wound infection, thus affecting the patient's postoperative recovery. Utility Model Content
[0003] The purpose of this utility model is to provide a nasal irrigator according to practical needs. By adding a flow rate limiting mechanism to the rinsing tube of the nasal irrigator, the flow rate limiting mechanism can block the flow when the patient squeezes the nasal irrigator bottle too hard, so as to avoid the problem that the rinsing fluid flowing out of the nasal irrigator head has too high an initial velocity, resulting in excessive rinsing force and thus causing the rinsing fluid to flow into the Eustachian tube and cause wound infection.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A nasal irrigator includes a nasal irrigation bottle, a cap, a transition tube, a first straight tube, a second straight tube, and a nasal irrigation tip. The top of the nasal irrigation bottle is screwed and fixed to the cap. The transition tube and the cap are integrally formed, and the transition tube communicates with the interior of the nasal irrigation bottle through the cap. The end of the transition tube away from the cap is screwed and fixed to one end of the first straight tube. The other end of the first straight tube is fixedly connected to one end of the second straight tube via a flow rate limiting mechanism. The other end of the second straight tube is screwed and fixedly attached to the nasal irrigation tip. The flow rate limiting mechanism includes a housing and a flow rate limiting component. One end of the housing is fixedly connected to the end of the first straight tube away from the transition tube, and the other end is fixedly connected to the end of the second straight tube away from the nasal irrigation tip. The interior of the housing is hollow, thus connecting the first straight tube and the second straight tube. The flow rate limiting component is installed in the hollow part of the housing.
[0006] Specifically, the flow rate limiting component includes a spring valve and a buffer peak, corresponding to the hollow cylindrical structure of the internal flow channel of the housing. The spring valve consists of a spring and a valve block. One end of the spring is fixedly connected to the connection between the housing and the second straight pipe, and the other end of the spring is fixedly connected to the bottom end of the valve block. The top end of the valve block abuts against the outlet of the first straight pipe located inside the housing under the action of the spring. The buffer peak has a wavy cross-section, and the bottom of the buffer peak is fixedly connected to the inner wall of the housing.
[0007] In the above technical solution, when the patient squeezes the nasal irrigation bottle, the pressure inside the bottle increases. Under the pressure, the irrigation fluid pushes open the spring valve and enters the shell. After being blocked by the buffer peak on the inner wall of the shell, it enters the second straight tube at an appropriate flow rate and then flows out from the front end of the nasal irrigation head to rinse the nasal cavity.
[0008] It should be noted that, due to the presence of the spring valve, after the spring valve is opened, the water pressure at the outlet of the first straight pipe is approximately the rated opening pressure of the spring valve. Under this water pressure, by setting a buffer peak with a corresponding peak height, the rinsing fluid can enter the second straight pipe at a suitable flow rate and then flow out from the front end of the nasal irrigation tip to rinse the nasal cavity. The specific settings of the rated opening pressure of the spring valve and the peak height of the buffer peak can be obtained through experimental calibration and are existing technologies, which will not be described in detail here.
[0009] Specifically, the flow rate limiting component is a J-shaped baffle, corresponding to the rectangular cross-sectional shape of the internal flow channel of the housing. There are two J-shaped baffles, which are symmetrically arranged and fixedly installed inside the housing with the central axis of the first straight pipe as the axis of symmetry. The upper and lower ends of the J-shaped baffles are fixedly connected to the upper and lower inner walls of the housing, respectively. The bend of the J-shaped baffles faces the outlet of the first straight pipe located inside the housing.
[0010] In the above technical solution, the J-shaped baffle actually increases the flow resistance. When the rinsing fluid with excessive flow rate passes through the J-shaped baffle, the rinsing fluid is blocked and some of the rinsing fluid flows back at the bend and collides with the rinsing fluid flowing in the forward direction, thereby reducing the flow rate and preventing the initial velocity of the rinsing fluid flowing out of the nasal irrigation tip from being too high, which would affect the nasal irrigation effect.
[0011] Preferably, the nasal rinse bottle has indentations at regular intervals to form slits. The presence of these slits prevents the nasal rinse bottle from slipping out of the patient's hand after the rinse solution has been applied.
[0012] Preferably, a reversible temperature sticker is affixed to the outer wall of the nasal irrigation bottle. The outer wall of the nasal irrigation bottle at the location where the reversible temperature sticker is affixed is a smooth plane. The reversible temperature sticker is marked with a temperature reading. The reversible temperature sticker allows the patient to intuitively understand the temperature of the nasal irrigation solution in the bottle, thereby avoiding problems such as nasal mucosal congestion caused by excessively high nasal irrigation solution temperature, leading to wound bleeding, or strong nasal mucosal contraction caused by excessively low temperature temperature, affecting blood circulation and hindering nasal mucosal healing.
[0013] Preferably, to avoid cross-infection, the nasal irrigator and the disposable nasal irrigator are provided with a hollow spherical structure made of medical rubber. The front end of the nasal irrigator is tapered into a gourd shape, and the rear end is fixedly connected to a threaded tube. The inner ring of the connection end between the second straight tube and the nasal irrigator is provided with an internal thread.
[0014] Compared with the prior art, the present invention has the following beneficial effects:
[0015] 1. This utility model adds a flow rate limiting mechanism to the rinsing tube of the nasal irrigator, so that when the patient squeezes the nasal irrigator bottle too hard, the flow rate limiting mechanism can play a blocking role, avoiding the problem that the rinsing fluid flowing out of the nasal irrigator head has too high an initial velocity, resulting in excessive rinsing force, and thus causing the rinsing fluid to flow into the Eustachian tube and cause wound infection.
[0016] 2. This utility model has a reversible temperature sticker on the nasal rinse bottle and a temperature display, so that patients can intuitively understand the temperature of the nasal rinse solution in the bottle. This avoids the problems of nasal mucosal congestion caused by excessively high temperature of the nasal rinse solution, which leads to wound bleeding, or nasal mucosal strong contraction caused by excessively low temperature, which affects blood circulation and is not conducive to nasal mucosal healing. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of a nasal irrigator according to the present invention.
[0018] Figure 2 This is a schematic diagram of the flow rate limiting mechanism of this utility model when it is a spring valve.
[0019] Figure 3 This is a schematic diagram of the flow rate limiting mechanism of this utility model when it is a J-shaped stop.
[0020] Figure 4 This is a schematic diagram of the structure of the nasal washer of this utility model.
[0021] In the diagram: 1. Nasal irrigation bottle; 2. Bottle cap; 3. Transition tube; 4. First straight tube; 5. Second straight tube; 6. Nasal irrigation tip; 7. Flow rate limiting mechanism; 8. Outer shell; 9. Spring valve; 10. Buffer peak; 11. Spring; 12. Valve block; 13. J-shaped stop; 14. Recessed slot; 15. Reversible temperature sticker; 16. Gourd-shaped opening; 17. Threaded tube. Detailed Implementation
[0022] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Several embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this utility model will be more thorough and complete.
[0023] Example 1
[0024] like Figure 1 As shown, this utility model provides a nasal irrigator, including a nasal irrigator bottle 1, a bottle cap 2, a transition tube 3, a first straight tube 4, a second straight tube 5, and a nasal irrigator tip 6. The top of the nasal irrigator bottle 1 is screwed and fixed to the bottle cap 2. The transition tube 3 and the bottle cap 2 are integrally structured. The transition tube 3 communicates with the interior of the nasal irrigator bottle 1 through the bottle cap 2. The end of the transition tube 3 away from the bottle cap 2 is screwed and fixed to one end of the first straight tube 4. The other end of the first straight tube 4 is fixedly connected to one end of the second straight tube 5 through a flow rate limiting mechanism 7. The other end of the second straight tube 5 is screwed and fixedly attached to the nasal irrigator tip 6. The flow rate limiting mechanism 7 includes a housing 8 and a flow rate limiting component. One end of the housing 8 is fixedly connected to the end of the first straight tube 4 away from the transition tube 3, and the other end is fixedly connected to the end of the second straight tube 5 away from the nasal irrigator tip 6. The interior of the housing 8 is hollow, thus communicating the first straight tube 4 and the second straight tube 5. The flow rate limiting component is installed in the hollow part of the housing 8.
[0025] like Figure 2 As shown, the flow rate limiting component includes a spring valve 9 and a buffer peak 10, corresponding to the hollow cylindrical structure of the internal flow channel of the outer shell 8. The spring valve 9 consists of a spring 11 and a valve block 12. One end of the spring 11 is fixedly connected to the connection between the inner shell 8 and the second straight pipe 5, and the other end of the spring 11 is fixedly connected to the bottom end of the valve block 12. The top end of the valve block 12 abuts against the outlet of the first straight pipe 4 located inside the outer shell 8 under the action of the spring 11. The buffer peak 10 has a wavy cross section, and the bottom of the buffer peak 10 is fixedly connected to the inner wall of the outer shell 8.
[0026] Specifically, when the patient squeezes the nasal irrigation bottle 1, the pressure inside the bottle increases. Under the pressure, the irrigation fluid pushes open the spring valve 9 and enters the interior of the outer shell 8. After being blocked by the buffer peak 10 on the inner wall of the outer shell 8, it enters the second straight tube 5 at an appropriate flow rate and then flows out from the front end of the nasal irrigation head 6 to rinse the nasal cavity.
[0027] In this embodiment, the nasal irrigation bottle 1 has indentations at regular intervals to form recesses 14. The presence of the recesses 14 makes it difficult for the nasal irrigation bottle 1 to slip out of the patient's hand after the patient's hand is wetted by the rinsing solution.
[0028] In this embodiment, a reversible temperature sticker 15 is affixed to the outer wall of the nasal irrigation bottle 1. The outer wall of the nasal irrigation bottle 1 at the affixation point of the reversible temperature sticker 15 is a smooth plane. The reversible temperature sticker 15 is marked with a temperature reading. The setting of the reversible temperature sticker 15 allows the patient to intuitively understand the temperature of the nasal irrigation solution in the nasal irrigation bottle 1, thereby avoiding the problems of nasal mucosal congestion caused by excessively high nasal irrigation solution temperature, resulting in wound bleeding, or nasal mucosal strong contraction caused by excessively low temperature temperature, affecting blood circulation and hindering nasal mucosal healing.
[0029] In this embodiment, as Figure 4 As shown, to avoid cross-infection, the nasal irrigation tip 6 is a disposable nasal irrigation tip. The nasal irrigation tip 6 is a hollow spherical structure made of medical rubber. The front end of the nasal irrigation tip 6 is tapered into a gourd-shaped opening 16, and the rear end is fixedly connected to a threaded tube 17. The inner ring of the connection end between the second straight tube 5 and the nasal irrigation tip 6 is provided with internal threads. Through the threaded connection, the nasal irrigation tip 6 can be easily disassembled and replaced.
[0030] Example 2
[0031] Based on Example 1, in this example, as Figure 3 As shown, the flow rate limiting component is replaced by a J-shaped baffle 13, corresponding to the rectangular cross-sectional shape of the internal flow channel of the housing 8. There are two J-shaped baffles 13, which are symmetrically arranged and fixedly installed inside the housing 8 with the central axis of the first straight pipe 4 as the axis of symmetry. The upper and lower ends of the J-shaped baffle 13 are fixedly connected to the upper and lower inner walls of the housing 8, respectively. The bend of the J-shaped baffle 13 faces the outlet of the first straight pipe 4 located inside the housing 8.
[0032] Specifically, the J-shaped baffle 13 actually increases the flow resistance. When the rinsing fluid with an excessive flow rate passes through the J-shaped baffle 13, the rinsing fluid is blocked and some of the rinsing fluid flows back at the bend and collides with the rinsing fluid flowing in the forward direction, thereby reducing the flow rate and preventing the initial velocity of the rinsing fluid flowing out of the nasal irrigation tip from being too high, which would affect the nasal irrigation effect.
[0033] It should be understood that the above description of the preferred embodiments is quite detailed, but it should not be considered as a limitation on the scope of protection of this utility model. Those skilled in the art can make substitutions or modifications under the guidance of this utility model without departing from the scope of protection of the claims of this utility model, and all such substitutions or modifications shall fall within the scope of protection of this utility model. The scope of protection of this utility model shall be determined by the appended claims.
Claims
1. A nasal irrigator, characterized in that, The device includes a nasal irrigation bottle (1), a cap (2), a transition tube (3), a first straight tube (4), a second straight tube (5), and a nasal irrigation tip (6). The top of the nasal irrigation bottle (1) is screwed and fixed to the cap (2). The transition tube (3) and the cap (2) are an integral structure. The transition tube (3) is connected to the inside of the nasal irrigation bottle (1) through the cap (2). One end of the transition tube (3) away from the cap (2) is screwed and fixed to one end of the first straight tube (4). The other end of the first straight tube (4) is connected to the second straight tube (6) through a flow rate limiting mechanism (7). 5) One end is fixedly connected, and the other end of the second straight tube (5) is screwed and fixed with a nasal irrigation head (6); the flow rate limiting mechanism (7) includes a shell (8) and a flow rate limiting component. One end of the shell (8) is fixedly connected to the end of the first straight tube (4) away from the transition tube (3), and the other end is fixedly connected to the end of the second straight tube (5) away from the nasal irrigation head (6). The shell (8) is hollow inside, thus connecting the first straight tube (4) and the second straight tube (5). The flow rate limiting component is installed in the hollow part of the shell (8).
2. A nasal irrigator according to claim 1, characterized in that, The flow rate limiting component includes a spring valve (9) and a buffer peak (10), which corresponds to the hollow cylindrical structure of the internal flow channel of the outer shell (8). The spring valve (9) consists of a spring (11) and a valve block (12). One end of the spring (11) is fixedly connected to the connection between the inner shell (8) and the second straight pipe (5), and the other end of the spring (11) is fixedly connected to the bottom end of the valve block (12). The top end of the valve block (12) abuts against the outlet of the first straight pipe (4) located inside the outer shell (8) under the action of the spring (11). The buffer peak (10) has a wavy cross section, and the bottom of the buffer peak (10) is fixedly connected to the inner wall of the outer shell (8).
3. A nasal irrigator according to claim 1, characterized in that, The flow rate limiting component is a J-shaped baffle (13), which corresponds to the rectangular cross-sectional shape of the internal flow channel of the outer shell (8). There are two J-shaped baffles (13), which are symmetrically arranged and fixedly installed inside the outer shell (8) with the central axis of the first straight pipe (4) as the axis of symmetry. The upper and lower ends of the J-shaped baffle (13) are fixedly connected to the upper and lower inner walls of the outer shell (8) respectively. The bend of the J-shaped baffle (13) faces the first straight pipe (4) and is located at the outlet inside the outer shell (8).
4. A nasal irrigator according to claim 1, characterized in that, The nasal rinse bottle (1) has indentations (14) formed at regular intervals on the bottle body.
5. A nasal irrigator according to claim 1, characterized in that, The nasal rinse bottle (1) has a reversible temperature sticker (15) attached to its outer wall. The outer wall of the nasal rinse bottle (1) at the point where the reversible temperature sticker (15) is attached is a smooth plane. The reversible temperature sticker (15) is marked with a temperature reading.
6. A nasal irrigator according to claim 1, characterized in that, The nasal rinse tip (6) and the disposable nasal rinse tip are described. The nasal rinse tip (6) is a hollow spherical structure made of medical rubber. The front end of the nasal rinse tip (6) is tapered into a gourd-shaped opening (16), and the rear end is fixedly connected to a threaded tube (17). The inner ring of the connection end between the second straight tube (5) and the nasal rinse tip (6) is provided with an internal thread.