Nasal discharge device and channel formation method

By designing anti-countercurrent channel structure and noise reduction space in the nasal suction liquid device, the problems of noise and nasal fluid overflow in the existing nasal suction liquid device are solved, and more efficient nasal fluid absorption and lower noise operation are achieved.

CN115105650BActive Publication Date: 2025-06-17AVITA CORP
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202210123459.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2021-03-17
Filing Date
2022-02-10
Publication Date
2025-06-17
Estimated Expiration
2042-02-10

AI Technical Summary

Technical Problem

Existing nasal suction fluid appliances are prone to noise during operation and can easily cause nasal fluid to overflow when rotating the handheld angle.

Method used

A nasal suction liquid device is designed, which includes a anti-countercurrent channel structure and a noise reduction space. The anti-counterflow channel structure maximizes the channel path length and configures a liquid reservoir to prevent nasal fluid from flowing and spilling; the noise reduction space extends the air channel to the air outlet to reduce the noise caused by the operation of the air pump.

Benefits of technology

Effectively prevent nasal fluid from flowing and spilling, reduce noise during operation of the air pump, and improve user operation convenience and comfort.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN115105650B_ABST
    Figure CN115105650B_ABST
Patent Text Reader

Abstract

The nasal fluid suction device disclosed by the present invention includes: an air pump having an intake pipe and an outlet pipe; and a head structure coupled to the intake pipe and the outlet pipe of the air pump. The head structure defines a channel between a nasal fluid suction port and an air outlet. The channel includes a first section of the channel communicating with the nasal fluid suction port and a second section of the channel communicating with the air outlet, and the first section of the channel includes at least one liquid storage tank. The second section of the channel communicates with the intake pipe and the outlet pipe of the air pump; wherein the first section of the channel maximizes the path length and has an anti-backflow channel structure; the second section of the channel has a noise reduction space.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present invention relates to a nasal fluid suction device, and particularly to a nasal fluid suction device with anti-backflow and noise reduction and a method for forming a channel thereof. Background Art

[0002] Nasal cavity cleaning and medical care are very important clinically, so there are products of nasal fluid suction devices that can be used for cleaning or medical purposes. Especially in home care, it is necessary to provide simple and rapid nasal cavity medical care, including sucking the snot or phlegm of patients.

[0003] According to the prior art, a nasal fluid suction device uses an air pump as a power source to generate suction. Therefore, when the nasal fluid suction device is operated, unnecessary noise is often caused by the operation of the air pump. In addition, in order to prevent the stored nasal fluid from overflowing, the existing nasal fluid suction device limits the angle of holding the nasal fluid suction device. If the user rotates the holding angle of the nasal fluid suction device during the operation process, it is easy to cause the nasal fluid to overflow onto the outer shell.

[0004] If the present invention can provide a nasal fluid suction device and a method for forming a channel thereof with a channel having anti-backflow and noise reduction functions, it will contribute to the practicality of the industry. Summary of the Invention

[0005] One of the purposes of the present invention is to provide a nasal fluid suction device and a method for forming a channel thereof, which provide a structure for preventing nasal fluid from flowing back and overflowing in the nasal fluid inhalation channel. Another purpose of the present invention is to provide a nasal fluid suction device and a method for forming a channel thereof, which provide a structure in the air inlet and outlet channels that can reduce the noise caused by the operation of the air pump.

[0006] The nasal fluid suction device of the present invention includes: an air pump having an intake pipe and an outlet pipe; and a head structure coupled to the intake pipe and the outlet pipe of the air pump. The head structure defines a channel between a nasal fluid suction port and an air outlet. The channel includes a first section of the channel communicating with the nasal fluid suction port and a second section of the channel communicating with the air outlet. And the first section of the channel includes at least one liquid storage tank. The second section of the channel communicates with the intake pipe and the outlet pipe of the air pump. Wherein the first section of the channel serves as an air channel and a nasal fluid channel, and the second section only extends the air channel to the air outlet. Wherein the first section of the channel maximizes the path length, and the first section of the channel has an anti-backflow channel structure. Wherein the second section of the channel has a noise reduction space, and the noise reduction space communicates with the outlet pipe of the air pump.

[0007] In the nasal mucus suction device of the present invention, in the head structure, the first section of the channel includes: a front cover having the nasal mucus suction opening; an inner cup having a first liquid storage tank communicating with the nasal mucus suction opening; and an outer cup having a second liquid storage tank communicating with the intake pipe of the air pump, and at least a part of the inner cup is received in the second liquid storage tank so that the overflow nasal mucus in the first liquid storage tank is received in the second liquid storage tank; wherein the first section of the channel further includes: a cup cover having a guide pipe, and the cup cover is coupled between the front cover and the cup lid so that the guide pipe passes through the opening of the cup lid, and the guide pipe guides the nasal mucus entering from the nasal mucus suction opening into the first liquid storage tank; wherein the bottom of the outer cup has a through pipe, the through pipe communicates the intake pipe of the air pump with the second liquid storage tank, and the length of the inner channel of the through pipe is greater than the thickness of the bottom of the outer cup; a lower surrounding wall surrounding the through pipe extends from the inner bottom of the outer cup, and an upper surrounding wall surrounding the lower surrounding wall of the outer cup extends from the outer bottom of the inner cup, and the upper surrounding wall and the lower surrounding wall form a plurality of bending paths of the first section of the channel in the second liquid storage tank to maximize the path length of the first section.

[0008] In the nasal mucus suction device of the present invention, in the head structure, the second section of the channel includes a base defining the noise reduction space and forming the air outlet communicating with the noise reduction space; a connecting block including an intake channel and an air outlet channel, the intake channel communicating the second liquid storage tank of the outer cup with the intake pipe of the air pump, and the air outlet channel communicating the outlet pipe of the air pump with the air outlet; and a cup lid having an opening, and the cup lid is adapted to cover the rim of the inner cup.

[0009] A method for forming a channel of a nasal mucus suction device of the present invention, the nasal mucus suction device includes an air pump having an intake pipe and an outlet pipe and a head structure, the head structure defines a channel between a nasal mucus suction opening and an air outlet, the channel includes a first section communicating with the nasal mucus suction opening and a second section communicating with the air outlet, and the channel forming method includes: maximizing the path length of the first section of the channel so that the first section of the channel has an anti-backflow channel structure; arranging at least one liquid storage tank in the first section of the channel; and arranging a noise reduction space in the second section of the channel and communicating the noise reduction space with the outlet pipe of the air pump.

[0010] The method of the present invention further includes: arranging a front cover having the nasal mucus suction opening in the first section of the channel; arranging an inner cup having a first liquid storage tank communicating with the nasal mucus suction opening in the first section of the channel; and arranging an outer cup having a second liquid storage tank communicating with the intake pipe of the air pump in the first section of the channel, and at least a part of the inner cup is received in the second liquid storage tank so that the overflow nasal mucus in the first liquid storage tank is received in the second liquid storage tank.

[0011] The method of the present invention further includes: forming a plurality of bending paths of the first-stage channel in a second liquid storage tank between the outer bottom of the inner cup and the inner bottom of the outer cup to maximize the path length of the first-stage channel.

[0012] The method of the present invention further includes: disposing a base defining the noise reduction space in the second-stage channel and connecting the noise reduction space with the air outlet; and disposing a connecting block in the second-stage channel, the connecting block includes an air inlet channel and an air outlet channel, and connecting the air inlet channel with the intake pipe of the air pump and the first-stage channel, and connecting the air outlet channel with the outlet pipe of the air pump and the air outlet.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] The effect of the nasal fluid suction device and its channel forming method of the present invention can provide that when the user operates the device of the present invention, even if the hand-held angle is rotated, the nasal fluid will not easily overflow to the outer shell, and through the noise reduction structure design in the channel, the device of the present invention can effectively reduce the noise caused by the operation of the air pump during operation. Description of the Drawings

[0015] Figure 1 It is an exploded view of the nasal fluid suction device of the present invention;

[0016] Figure 2 It is a sectional view of the head structure of the nasal fluid suction device of the present invention coupled to the air pump along the Figure 5 section line BB shown;

[0017] Figure 3 It is a sectional view of the head structure of the nasal fluid suction device of the present invention along the Figure 5 section line AA shown;

[0018] Figure 4 It is a perspective view of the cup cover of the device of the present invention;

[0019] Figure 5 It is a perspective view of the outer cup of the device of the present invention;

[0020] Figure 6 It is a perspective view of the base of the device of the present invention.

[0021] Symbol Description:

[0022] 1 O-ring

[0023] 10 Head structure

[0024] 11 Front cover

[0025] 12 Cup cover

[0026] 13 Cup cover

[0027] Inner cup

[0028] Outer cup

[0029] Base

[0030] Connecting block

[0031] Air pump

[0032] Outlet pipe

[0033] Inlet pipe

[0034] Nasal discharge suction port

[0035] Diversion pipe

[0036] Opening

[0037] Upper surrounding wall

[0038] First liquid storage tank

[0039] Lower surrounding wall

[0040] Groove

[0041] Second liquid storage tank

[0042] Through pipe

[0043] Flange

[0044] Outlet port

[0045] Noise reduction space

[0046] Hole

[0047] Annular inner wall

[0048] Intake passage

[0049] Outlet passage

[0050] A - A sectional line

[0051] B - B sectional line

[0052] Paths A, B, C, D, E

[0053] Paths F, G, H, I, J Specific implementation manner

[0054] Please refer to Figure 1, showing an exploded view of the nasal suction device of the present invention. In one embodiment of the present invention, the nasal suction device of the present invention comprises: a head structure 10 and an air pump 20, wherein the air pump 20 has an air inlet pipe 22 and an air outlet pipe 21. The head structure 10 is coupled to the air inlet pipe 22 and the air outlet pipe 21 of the air pump 20. Figure 1 As shown, the head structure 10 is composed of a front cover 11, a cup cover 12, a cup cover 13, an inner cup 14, an outer cup 15, a base 16 and a connecting block 17, wherein the inner cup 14 provides a first liquid storage tank 142, and the outer cup 15 provides a second liquid storage tank 153. Figure 2 As shown, an O-ring 1 is provided between the outer side surface of the inner cup 14 and the inner side surface of the outer cup 15 to limit the overflow path of the nasal fluid from the first liquid storage tank 142; an O-ring 1 is provided between the outer side surface of the outer cup 15 and the inner side surface of the cup cover 12 to prevent the nasal fluid from overflowing from the first liquid storage tank 142 from overflowing to the outside of the cup cover 12.

[0055] Please refer to Figure 2 , showing that the head structure of the nasal suction device of the present invention is coupled to the air pump Figure 5 The cross-sectional view along the section line BB is shown. In this embodiment, the front cover 11 has a nasal fluid suction port 111, and the base 16 has an air outlet 161. The head structure 10 defines a channel between the nasal fluid suction port 111 and the air outlet 161. The channel includes a first section channel connected to the nasal fluid suction port 111 and a second section channel connected to the air outlet 161, wherein the first section channel serves as a common channel for an air channel and a nasal fluid channel, including paths A, B, C, D, and E, as shown in FIG. Figure 3 The second section of the channel extends only the air channel of the first section of the channel to the air outlet 161, including paths F, G, H, I, J, such as Figure 2 shown.

[0056] Please refer to Figure 3 , showing the head structure of the nasal liquid suction device of the present invention along Figure 5 The cross-sectional view along the section line AA is shown. In this embodiment, the front cover 11 has a trumpet shape with a hollow passage and is coupled to the cup cover 12. The nasal liquid suction port 111 is connected to the hollow passage of the front cover 11. The cup cover 12 has a guide tube 121. Figure 4The cup lid 13 shown has an opening 131, the inner diameter of the opening 131 being slightly larger than the outer diameter of the diversion tube 121, allowing the nasal fluid stored in the first liquid storage tank 142 to overflow to the space between the inner cup 14 and the cup cover 12 along the edge of the opening 131 (as shown by path B). A flange structure is formed on the lower surface of the cup lid 13 near the periphery, which enables the cup lid 13 to closely cover the rim of the inner cup 14. The diversion tube 121 of the cup cover 12 extends into the first liquid storage tank 142 of the inner cup 14 through the opening 131 of the cup lid 13, so that the nasal fluid entering from the nasal fluid suction port 111 is stored in the first liquid storage tank 142 of the inner cup 14 through the diversion tube 121.

[0057] Please refer to Figure 5 as shown, which shows a perspective view of the outer cup 15 of the device of the present invention. Please cooperate with Figure 3 as shown, the outer cup 15 provides a second liquid storage tank 153, and a flange 155 is formed on the inner side wall of the second liquid storage tank 153, which is used to support the peripheral edge of the bottom of the inner cup 14. A through tube 154 is formed at the center of the bottom of the second liquid storage tank 153 (the space below the flange 155), and the length of the inner channel of the through tube 154 is greater than the thickness of the bottom of the outer cup 15. A lower surrounding wall 151 surrounding the through tube 154 extends from the bottom of the second liquid storage tank 153, and the height of the lower surrounding wall 151 is lower than the height of the through tube 154. An upper surrounding wall 141 extends from the outer bottom of the inner cup 14. When the inner cup 14 is placed in the outer cup 15 and the flange 155 supports the peripheral edge of the bottom of the inner cup 14, the upper surrounding wall 141 surrounds the lower surrounding wall 151 of the outer cup 15, and the upper surrounding wall 141 and the lower surrounding wall 151 form a plurality of bending paths E of the first section of the channel in the second liquid storage tank 153, as Figure 3 shown, to maximize the path length of the first section of the channel. In addition, the inner side surface of the cup cover 12 extends downward to cover part of the outer side surface of the outer cup 15, and the O-ring 1 provided between the outer side surface of the outer cup 15 and the inner side surface of the cup cover 12 can prevent the overflowing nasal fluid outside the first liquid storage tank 142 from overflowing to the outside of the cup cover 12.

[0058] Please refer to Figure 6 as shown, which shows a perspective view of the base 16 of the device of the present invention. Please cooperate with reference to Figure 2, the base 16 has an annular inner wall 164 which defines a channel at the center inside the base 16, and the channel is connected to an air inlet channel 171 of a connecting block 17. When the base 16 is coupled to the bottom of the outer cup 15, the bottom surface of the outer cup 15 is supported by the annular inner wall 164, and a through pipe 154 at the bottom of the outer cup 15 is inserted into the air inlet channel 171 of the connecting block 17. In addition, the annular inner wall 164 defines an annular noise reduction space 162 and an air outlet chamber with an air outlet 161 inside the base 16. The air outlet chamber has a hole 163 which communicates with an air outlet channel 172 of the connecting block 17. As Figure 6 shown, the noise reduction space 162 and the air outlet chamber are separated by two partition plates which form small grooves. The noise passing through the hole 163 enters the air outlet chamber and can circulate to the noise reduction space 162 along with the air through the small grooves, achieving the effect of reducing noise. An O-ring 1 is arranged between the outer edge of the base 16 and the outer cup 15, and the material of the O-ring 1 is rubber which helps to block the noise of the air pump 20 and retain the noise in the noise reduction space 162 to optimize the noise reduction effect of the device of the present invention.

[0059] Continue to refer to Figure 2 , the connecting block 17 is coupled between the bottom of the base 16 and the air pump 20, and the connecting block 17 forms two independent air inlet channels 171 and air outlet channels 172. The air inlet channel 171 communicates with the through pipe 154 of the outer cup 15 and an air inlet pipe 22 of the air pump 20, and the air outlet channel 172 communicates with the hole 163 of the base 16 and an air outlet pipe 21 of the air pump 20. In other words, the function of the connecting block 17 is to connect the air inlet pipe 22 of the air pump 20 to the second liquid storage tank 153 of the outer cup 15 and connect the air outlet pipe 21 of the air pump 20 to the noise reduction space 162 of the base 16. The following will further describe that the first section of the channel between the nasal fluid suction port 111 and the air outlet 161 maximizes its path length to provide a structure for preventing nasal fluid backflow and overflow, and the noise reduction space 162 of the second section of the channel provides a structure for reducing the noise caused by the operation of the air pump 20.

[0060] Please refer to Figure 3 Along Figure 5As shown in the cross-sectional view along the section line AA, in an embodiment of the present invention, the first section of the channel of the head structure 10 includes paths A, B, C, D, E, and includes the first liquid storage tank 142 of the inner cup 14 and the second liquid storage tank 153 of the outer cup 15. And the channel between the nasal fluid suction port 111 and the air outlet 161 provides a common channel for an air channel and a nasal fluid channel. Since the middle through pipe 154 of the outer cup 15 is connected to the intake pipe 22 of the air pump 20, a suction force is generated in path F, so that the nasal fluid entering from the nasal fluid suction port 111 stays in the first liquid storage tank 142 and the second liquid storage tank 153 along the directions of paths A, B, C, D, E. Particularly referring to Figure 5 A structure of a groove 152 is formed on the inner side wall of the shown outer cup 15, and the section line AA passes through the groove 152. The groove 152 provides a nasal fluid overflow path C between the outer side wall of the inner cup 14 and the inner side wall of the outer cup 15 that is not restricted by the O-ring 1. Due to the restriction of the O-ring 1 provided on the outer side wall of the inner cup 14, the nasal fluid overflowing from the first liquid storage tank 142 through path B can only enter between the outer side wall of the inner cup 14 and the inner side wall of the outer cup 15 through path C of the groove 152.

[0061] Continuing to refer to Figure 3 , a groove is formed at the bottom of the inner cup 14 to provide path D, so that the nasal fluid between the outer side wall of the inner cup 14 and the inner side wall of the outer cup 15 enters the second liquid storage tank 153 below the inner cup 14 through this path D. In particular, the groove of path D is located on the opposite side of the groove 152 of the outer cup 15, maximizing the path length of the first section of the channel. When the nasal fluid passing through path D enters the second liquid storage tank 153, a plurality of curved paths E formed by the upper surrounding wall 141 of the inner cup 14 and the lower surrounding wall 151 of the outer cup 15 in the second liquid storage tank 153 further maximize the path length of the first section of the channel. Therefore, the first section of the channel maximizes its path length, so that when the air pump 20 of the nasal fluid suction device of the present invention is not operating, the nasal fluid stored in the second liquid storage tank 153 will not flow back to the nasal fluid suction port 111. In the second liquid storage tank 153, the height of the lower surrounding wall 151 is lower than the height of the middle through pipe 154, which can prevent the nasal fluid stored in the second liquid storage tank 153 from flowing into the second section of the channel, and the middle through pipe 154 located in the center can make the angle of the handheld nasal fluid suction device skewed, and the nasal fluid stored in the second liquid storage tank 153 is not likely to enter the second section of the channel.

[0062] Please refer to Figure 2 Along Figure 5 As shown in the cross-sectional view along the section line BB, where the section line BB is perpendicular to the section line AA, so that Figure 2 And Figure 3Show different sectional views of the head structure 10. In an embodiment of the present invention, the second-stage channel of the head structure 10 includes paths F, G, H, I, J, and the second-stage channel extends to the air outlet 161 as the air channel of the first-stage channel and includes the noise reduction space 162 of the base 16. The intake pipe 22 and the outlet pipe 21 of the air pump 20 respectively pass through two independent intake channels 171 and outlet channels 172 of the connection block 17, and are respectively communicated with the middle through pipe 154 of the outer cup 15 and the hole 163 of the base 16. When the air pump 20 operates, the intake pipe 22 of the air pump 20 generates a suction force in paths F and G, and exhausts air through the outlet pipe 21 to the noise reduction space 162, and finally exhausts from the air outlet 161. Therefore, the noise generated by the operation of the air pump 20 will stay in the noise reduction space 162 through paths H and I.

[0063] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A nasal mucus aspirator device, characterized in that, Comprising: An air pump having an intake pipe and an outlet pipe; and A head structure coupled to the intake pipe and the outlet pipe of the air pump, the head structure defining a passage between a nasal fluid suction port and an air outlet, the passage comprising a first passage section communicating with the nasal fluid suction port and a second passage section communicating with the air outlet, and the first passage section comprising at least one liquid storage tank, and the second passage section communicating the intake pipe and the outlet pipe of the air pump; Wherein the first passage section serves as an air passage and a nasal fluid passage, and the second passage section only extends the air passage to the air outlet; Wherein the first passage section has an anti-backflow passage structure and comprises: an inner cup having a first liquid storage tank communicating with the nasal fluid suction port; and an outer cup having a second liquid storage tank communicating with the intake pipe of the air pump, and the second liquid storage tank houses at least a part of the inner cup, the bottom of the outer cup has a through pipe communicating the intake pipe of the air pump and the second liquid storage tank, the inner bottom of the outer cup extends a lower surrounding wall around the through pipe, and the outer bottom of the inner cup extends an upper surrounding wall around the lower surrounding wall of the outer cup, and the extension of the path length of the first passage section is formed by the upper surrounding wall and the lower surrounding wall forming a plurality of curved paths of the first passage section in the second liquid storage tank; Wherein the second passage section has a noise reduction space communicating with the outlet pipe of the air pump.

2. The nasal mucus aspirator device according to claim 1, characterized in that, In the head structure, the first passage section comprises: A front cover having the nasal fluid suction port, wherein the overflow nasal fluid of the first liquid storage tank is received in the second liquid storage tank.

3. The nasal mucus aspirator device according to claim 2, characterized in that, The length of the inner passage of the through pipe is greater than the bottom thickness of the outer cup.

4. The nasal mucus aspirator device according to claim 2, characterized in that, In the head structure, the second passage section comprises a connection block, the connection block comprising an intake passage and an outlet passage, the intake passage communicating the second liquid storage tank of the outer cup and the intake pipe of the air pump, and the outlet passage communicating the outlet pipe of the air pump and the air outlet.

5. The nasal mucus aspirator device according to claim 2, characterized in that, The first passage section further comprises: a cup cover having an opening, and the cup cover is adapted to cover the rim of the inner cup.

6. The nasal mucus aspirator device according to claim 5, characterized in that, The first passage section further comprises: a cup hood having a diversion pipe, the cup hood is coupled between the front cover and the cup cover, so that the diversion pipe passes through the opening of the cup cover, and the diversion pipe guides the nasal fluid entering from the nasal fluid suction port into the first liquid storage tank.

7. The nasal mucus aspirator device according to claim 1, characterized in that, In the head structure, the second passage section comprises: a base, the base defining the noise reduction space and forming the air outlet communicating with the noise reduction space.

8. The nasal mucus aspirator device according to claim 7, characterized in that, The second passage section further comprises a connection block, the connection block comprising an intake passage and an outlet passage, the intake passage communicating the first passage section and the intake pipe of the air pump, and the outlet passage communicating the outlet pipe of the air pump and the air outlet.

9. A method for forming a channel of a nasal mucus aspirator device, characterized in that, The nasal fluid suction device comprises an air pump having an intake pipe and an outlet pipe and a head structure, the head structure defining a passage between a nasal fluid suction port and an air outlet, the passage comprising a first passage section communicating with the nasal fluid suction port and a second passage section communicating with the air outlet, and the method for forming the passage comprises: The first-stage channel includes an inner cup having a first liquid storage tank communicating with the nasal liquid suction port; and an outer cup having a second liquid storage tank communicating with the intake pipe of the air pump, and at least part of the inner cup is received in the second liquid storage tank. The bottom of the outer cup has a through pipe that communicates the intake pipe of the air pump with the second liquid storage tank. A lower surrounding wall surrounding the through pipe extends from the inner bottom of the outer cup, and an upper surrounding wall surrounding the lower surrounding wall of the outer cup extends from the outer bottom of the inner cup. The extension of the path length of the first-stage channel is formed based on the upper surrounding wall and the lower surrounding wall forming a plurality of curved paths of the first-stage channel in the second liquid storage tank, and the first-stage channel has an anti-backflow channel structure; and A noise reduction space is arranged in the second-stage channel, and the noise reduction space communicates with the outlet pipe of the air pump.

10. The channel forming method according to claim 9, characterized in that, Further comprising: A front cover having the nasal liquid suction port is arranged in the first-stage channel; An inner cup having a first liquid storage tank communicating with the nasal liquid suction port is arranged in the first-stage channel; And An outer cup having a second liquid storage tank communicating with the intake pipe of the air pump is arranged in the first-stage channel, and at least part of the inner cup is received in the second liquid storage tank, so that the overflow nasal liquid in the first liquid storage tank is received in the second liquid storage tank.

11. The channel forming method according to claim 9, characterized in that, A base is arranged in the second-stage channel, and the base defines the noise reduction space and forms an air outlet communicating with the noise reduction space.

12. The channel forming method according to claim 11, characterized in that, Further comprising: A connection block is arranged in the second-stage channel. The connection block includes an intake channel and an outlet channel, and the intake channel communicates the first-stage channel with the intake pipe of the air pump, and the outlet channel communicates the outlet pipe of the air pump with the air outlet.

Citation Information

Patent Citations

  • Accessory for nasal aspirator, nasal aspirator and kit thereof

    CN109152869A