CN109620699B - Nasal cavity cleaning nursing device - Google Patents
Nasal cavity cleaning nursing device Download PDFInfo
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- CN109620699B CN109620699B CN201811620864.8A CN201811620864A CN109620699B CN 109620699 B CN109620699 B CN 109620699B CN 201811620864 A CN201811620864 A CN 201811620864A CN 109620699 B CN109620699 B CN 109620699B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H35/00—Baths for specific parts of the body
- A61H35/04—Baths for specific parts of the body for the nose
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/80—Suction pumps
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M31/00—Devices for introducing or retaining media, e.g. remedies, in cavities of the body
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2205/00—Devices for specific parts of the body
- A61H2205/02—Head
- A61H2205/022—Face
- A61H2205/023—Nose
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2210/00—Anatomical parts of the body
- A61M2210/06—Head
- A61M2210/0618—Nose
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Biomedical Technology (AREA)
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- Engineering & Computer Science (AREA)
- Vascular Medicine (AREA)
- Otolaryngology (AREA)
- Epidemiology (AREA)
- Pain & Pain Management (AREA)
- Physical Education & Sports Medicine (AREA)
- Rehabilitation Therapy (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Devices For Medical Bathing And Washing (AREA)
- External Artificial Organs (AREA)
Abstract
The invention discloses a nasal cavity cleaning nursing device, wherein a first shell is connected with a second shell, a nasal suction tube comprises an air inlet section, an adjusting cavity and a partition plate for separating the air inlet section from the adjusting cavity, the air inlet section extends out of the first shell, the adjusting cavity is connected with an air inlet of an air pump, an outlet end of the nasal washing tube extends out of the first shell, an inlet end of the nasal washing tube is connected with an air outlet of the air pump, a liquid storage bin is communicated with the nasal suction tube through a flow passage, the liquid storage bin is provided with a water filling port, and the water filling port is provided with a one-way valve; the air outlet of the air pump is further connected with an air outlet in the second shell, the dirt storage cup is separably connected to the first shell, the air inlet section further extends outwards to form a cup inlet section with a long length, the adjusting cavity further extends outwards to form a cup outlet section with a short length, and the cup inlet section and the cup outlet section both extend into the dirt storage cup. The invention can realize the purpose of simply and quickly switching the air passage without arranging an additional mechanical component, and can also carry out the linear adjustment of the suction force on the basis, thereby improving the use experience.
Description
Technical Field
The invention belongs to the technical field of nasal cavity nursing, and particularly relates to a nasal cavity cleaning nursing device.
Background
Nasal cavity nursing is an important link in clinical nursing work, and in order to clean the nasal cavity better, a plurality of nasal cavity cleaning tools with different types and functions are invented, wherein the nasal cavity cleaning tools relate to a nasal spray and suction device. The groups needing to use the nasal spray and suction device are often nose disease patients and infants, so that the nasal spray and suction device has to meet higher requirements so as to have better use experience when in use.
As the name suggests, the nasal spray and suction device has two functions of nasal washing and nasal suction, and can spray liquid medicine or cleaning water into the nasal cavity to achieve the purpose of medicine application or cleaning in the state of nasal washing, and can suck out dirt in the nasal cavity to achieve the purpose of cleaning the dirt in the state of nasal suction. The existing nasal spray aspirator realizes the switching of an internal air passage through a mechanical assembly, and for such instruments with small volume, the switching mode has the defects of complex structure, inconvenient maintenance, small size of parts, easy damage and the like. It is known that if the suction force is too small, the dirt in the nasal cavity cannot be sucked into the nasal spray aspirator, and if the suction force is too large, the nasal mucosa is easily damaged.
In view of the foregoing, it is desirable to provide a nasal sprayer capable of linearly adjusting the suction force.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a nasal cavity cleaning nursing device, which can realize the purpose of simply and quickly switching air passages without arranging additional mechanical components, and can also perform linear adjustment on suction force on the basis to improve the use experience.
In order to solve the prior art problem, the invention discloses a nasal cavity cleaning nursing device, which comprises a first shell, a second shell, an air pump, a liquid storage bin, a battery, a nasal suction tube, a nasal washing tube and a dirt storage cup, wherein the first shell is connected with the second shell;
the first shell is connected with the second shell, the air pump and the battery are fixedly arranged in the second shell, and the battery is connected with the air pump; the nasal suction tube, the nasal washing tube and the liquid storage bin are all arranged in the first shell, the nasal suction tube comprises an air inlet section, an adjusting cavity and a partition plate for separating the air inlet section and the adjusting cavity, the air inlet section extends out of the first shell and is detachably provided with a first rubber plug at the end part of the first shell, the adjusting cavity is fixedly arranged in the first shell, the adjusting cavity is connected with an air inlet of an air pump, the outlet end of the nasal washing tube extends out of the first shell and is detachably provided with a second rubber plug, the inlet end of the nasal washing tube is connected with an air outlet of the air pump, the liquid storage bin is communicated with the nasal suction tube through a flow passage, the liquid storage bin is provided; the air outlet of the air pump is also connected with an air outlet on the second shell through an air outlet pipe, and the air outlet is detachably provided with a third rubber plug;
store up dirty cup detachable and connect on first casing, the section of admitting air still outwards extends the cup section that advances that forms length longer, adjusts the chamber and still outwards extends the cup section that goes out that forms length shorter, advances the cup section and goes out the cup section and all extend to in the dirty cup of storage.
As a preferred embodiment, it is possible to,
the linear adjusting component is also included; the first shell and the second shell are coaxially and rotatably connected, the linear adjusting assembly is arranged in the adjusting cavity, and an air inlet of the air pump is connected with the linear adjusting assembly; the adjustment of the first housing relative to the second housing can drive the linear change in the flow cross-section of the airflow in the linear adjustment assembly.
As a preferred embodiment, it is possible to,
the linear adjusting assembly comprises a sleeve, a piston, an adjusting valve core, a nut and a fixed pipe; the sleeve is fixed in the adjusting cavity, one end of the sleeve facing the air inlet section is closed, and the other end opposite to the closed end is open; the fixed pipe is fixed in the sleeve, one end of the fixed pipe facing the air inlet section is closed, and the other end opposite to the closed end is open and extends out of the adjusting cavity to be connected with an air inlet of the air pump; the fixed pipe is sequentially provided with a piston, an adjusting valve core and a nut from the closed end to the open end, the piston, the sleeve and the fixed pipe form dynamic seal, a through hole communicated with the inside of the fixed pipe is also formed in the part of the fixed pipe between the piston and the adjusting valve core, an external thread matched with the nut is arranged at the part below the through hole, and the nut and the adjusting cavity form linear guide fit; the outer wall of the adjusting valve core is provided with a plurality of adjusting grooves, and the areas of the radial sections of the adjusting grooves are linearly increased from back to front or approximately linearly increased along the axial direction of the adjusting valve core;
the inlet end of the nose washing pipe is connected with the air outlet of the air pump through a spiral hose sleeved on the periphery of the adjusting cavity.
As a preferred embodiment, it is possible to,
the piston is connected with the adjusting valve core through a plurality of first connecting ribs, and the adjusting valve core is connected with the nut through a plurality of second connecting ribs.
As a preferred embodiment, it is possible to,
the piston, the first connecting rib, the adjusting valve core, the second connecting rib and the nut are integrally connected.
As a preferred embodiment, it is possible to,
a limiting shoulder capable of restraining the adjusting valve core is formed between the threaded part and the unthreaded part of the fixed pipe.
As a preferred embodiment, it is possible to,
the first shell and the second shell form a rotary connection through a slip ring.
As a preferred embodiment, it is possible to,
the inside of washing nose pipe includes major diameter section and path section, and the path section passes through the runner and communicates with the stock solution storehouse, and the major diameter section is connected in path section rear.
As a preferred embodiment, it is possible to,
the end part of the nose sucking pipe used for air inlet and the end part of the nose washing pipe used for air outlet are both in a necking structure.
As a preferred embodiment, it is possible to,
the dirt storage cup is made of transparent materials.
The invention has the following beneficial effects: the purpose of simply and quickly switching the air path can be achieved without arranging an additional mechanical assembly, the suction force can be linearly adjusted on the basis, and the use experience is improved.
Drawings
FIG. 1 is a schematic diagram of the structure of a preferred embodiment of the present invention in the nose suction mode (suction minimum state);
FIG. 2 is a schematic diagram of the structure of a preferred embodiment of the present invention in the nose suction mode (suction maximum state);
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is a schematic structural diagram of a preferred embodiment of the present invention in a nasal wash mode;
fig. 5 is a perspective view of the piston, adjustment cartridge and nut of the embodiment of fig. 1.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1 to 5, a nasal cavity cleaning nursing device comprises a first shell 1, a second shell 10, an air pump 13, a liquid storage bin 31, a battery 14, a nasal suction tube 3, a nasal wash tube 30 and a dirt storage cup 7; the first shell 1 is connected with the second shell 10, the air pump 13 and the battery 14 are fixedly arranged in the second shell 10, and the battery 14 is connected with the air pump 13; the nasal suction tube 3, the nasal wash tube 30 and the liquid storage bin 31 are all arranged in the first shell 1, the nasal suction tube 3 comprises an air inlet section 2, an adjusting cavity 4 and a partition plate 5 for separating the air inlet section 2 from the adjusting cavity 4, the air inlet section 2 extends out of the first shell 1 and is detachably provided with a first rubber plug 27 at the end part of the first shell, the adjusting cavity 4 is fixedly arranged in the first shell 1, the adjusting cavity 4 is connected with an air inlet of an air pump 13, the outlet end of the nasal wash tube 30 extends out of the first shell 1 and is detachably provided with a second rubber plug 34, the inlet end of the nasal wash tube is connected with an air outlet of the air pump 13, the liquid storage bin 31 is communicated with the nasal suction tube 3 through a flow passage 33, the liquid storage bin 31 is provided with a; the air outlet of the air pump 13 is also connected with an air outlet on the second shell 10 through an air outlet pipe 20, and the air outlet is detachably provided with a third rubber plug 11; store up dirty cup 7 detachable connects on first casing 1, and section 2 that admits air still outwards extends the longer cup section 8 that advances of formation length, adjusts chamber 4 and still outwards extends the short cup section 9 that goes out of formation length, advances cup section 8 and goes out cup section 9 and all extends to storing up in dirty cup 7.
In the nose suction mode, the dirt storage cup 7 is mounted on the first shell 1, and at the moment, the outlet end of the nose washing pipe 30 is blocked by the first rubber plug 34, and meanwhile, the end part of the nose suction pipe 3 for air inlet and the air outlet of the air pump 13 are ensured to be unblocked. At this moment, the air pump 13 is started, air enters the dirt storage cup 7 through the cup inlet section 8 under the action of suction force, then enters the adjusting cavity 4 through the cup outlet section 9, then enters the air pump 13, and finally is discharged through the air outlet, and in the process, dirt in the nasal cavity can be sucked into the dirt storage cup 7, so that the dirt removing purpose is achieved.
In the nasal washing mode, the dirt storage cup 7 and the first rubber plug 34 are taken down, and the nasal suction tube 3 and the air outlet are respectively blocked by the second rubber plug 27 and the third rubber plug 11. At this time, the air pump 13 is started, and the air enters the adjusting cavity 4 through the cup inlet section 9, then enters the air pump 13, and then enters the nasal wash tube 30 through the air outlet. Because the air flow speed is fast, and the one-way valve plug 32 only allows the outside air to enter the liquid storage bin 31, the liquid medicine or the cleaning water in the liquid storage bin 31 is taken out and sprayed out from the outlet end of the nasal cavity washing tube 30 together, thereby achieving the purpose of cleaning or medicine feeding.
Through the operation, the mode switching can be realized only through the tube body without arranging a mechanical assembly for mode switching, the structure is simple, the operation is convenient, the use experience is greatly improved, and the service life is prolonged.
Preferably, the device also comprises a linear adjusting component; the first shell 1 and the second shell 10 are coaxially and rotatably connected, the linear adjusting assembly is arranged in the adjusting cavity 4, and an air inlet of the air pump 13 is connected with the linear adjusting assembly; adjusting the rotation of the first housing 1 relative to the second housing 2 can drive a linear change in the flow cross-section of the gas stream in the linear adjustment assembly. Specifically, the linear adjustment assembly includes a sleeve 16, a piston 15, an adjustment spool 19, a nut 28, and a fixed tube 17; the sleeve 16 is fixed in the adjusting cavity 4, one end of the sleeve facing the air inlet section 2 is closed, and the other end opposite to the closed end is open; the fixed pipe 17 is fixed in the sleeve 16, one end of the fixed pipe facing the air inlet section 2 is closed, the other end opposite to the closed end is open and extends out of the adjusting cavity 4 to be connected with an air inlet of the air pump 13; the fixed pipe 17 is sequentially provided with a piston 15, an adjusting valve core 19 and a nut 28 from the closed end to the open end, the piston 15, the sleeve 16 and the fixed pipe 17 form dynamic seal, a through hole 26 communicated with the inside of the fixed pipe 17 is also arranged at the part between the piston 15 and the adjusting valve core 19, an external thread 22 matched with the nut 28 is arranged at the part below the through hole 26, and the nut 28 and the adjusting cavity 4 form linear guide matching; the outer wall of the adjusting valve core 19 is provided with a plurality of adjusting grooves 25, and the area of the radial section of each adjusting groove 25 is linearly increased from back to front or approximately linearly increased along the axial direction of the adjusting valve core 19; the inlet end of the nose washing tube 30 is connected with the air outlet of the air pump 13 through a spiral hose 29 sleeved on the periphery of the adjusting cavity 4.
During the use, air pump 13 opens, and gaseous taking filth passes through inlet section 2 and advances in cup section 8 and get into storing up dirty cup 7, and gaseous continuous through going out cup section 9 and get into in adjusting chamber 4. Due to the adjusting groove 25 arranged on the adjusting valve core 19, the air flow enters the interlayer between the sleeve 16 and the fixed tube 17 through the adjusting groove 25, then enters the fixed tube 17 through the through hole 26 on the fixed tube 17, then enters the air pump 13 and finally is discharged through the exhaust port. When the suction force needs to be adjusted, the second shell 10 is held by the hand, the first shell 1 is rotated by the other hand, and at the moment, the nut 28 axially moves relative to the fixed pipe 17 due to the thread structure between the nut 28 and the fixed pipe 17, so that the adjusting valve core 19 and the piston 15 are driven to synchronously move. The adjustment valve core 19 moves to make the cross-sectional area of the adjustment groove 25 at the open end of the sleeve 16 change linearly or nearly linearly, so as to change the air flow and finally realize the linear adjustment of the suction force. In the moving process of the regulating valve core 19, the piston 15 also moves synchronously, so that the volume between the regulating valve core 19 and the piston 15 is kept constant, and therefore, in the suction regulating process, the fluctuation influence on the suction change due to the volume change can not occur, and the stability of the suction regulating process is improved.
Preferably, the piston 15 is connected to the adjustment valve core 19 by a plurality of first connecting ribs 23, and the adjustment valve core 19 is connected to the nut 28 by a plurality of second connecting ribs 24.
Preferably, the piston 15, the first connecting rib 23, the regulating valve core 19, the second connecting rib 24 and the nut 28 are integrally connected.
Preferably, a limit shoulder 26 capable of restraining the adjustment spool 19 is formed between the portion of the fixed pipe 17 provided with the thread 22 and the portion without the thread. When the regulating valve core 19 moves to the position with the maximum suction force, the regulating valve core is just restrained by the limiting shoulder 26 and cannot move continuously, and the first housing 1 and the second housing 10 cannot rotate continuously.
Preferably, the first housing 1 and the second housing 10 are rotationally connected by a slip ring 12, and the slip ring 12 may be replaced by a bearing.
As preferred scheme, wash the inside of nose pipe 30 and include major diameter section and path section, the path section passes through runner 33 and stock solution storehouse 31 intercommunication, and major diameter section is connected in path section rear to this can stretch into in the narrower nasal cavity.
Preferably, the end part of the nasal suction tube 3 for air intake and the end part of the nasal wash tube 30 for air outlet are both of a necking structure.
As preferred scheme, store up dirty cup 7 and make by transparent material, thereby be convenient for observe the interior filth quantity of cup and remind the user in time to clear up.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (8)
1. A nasal cavity cleaning nursing device is characterized in that:
comprises a first shell (1), a second shell (10), an air pump (13), a liquid storage bin (31), a battery (14), a nose suction pipe (3), a nose washing pipe (30) and a sewage storage cup (7);
the first shell (1) is connected with the second shell (10), the air pump (13) and the battery (14) are fixedly arranged in the second shell (10), and the battery (14) is connected with the air pump (13); the nasal suction tube (3), the nasal washing tube (30) and the liquid storage bin (31) are arranged in the first shell (1), the nasal suction tube (3) comprises an air inlet section (2), an adjusting cavity (4) and a partition plate (5) for separating the air inlet section (2) and the adjusting cavity (4), the air inlet section (2) extends out of the first shell (1) and is detachably provided with a first rubber plug (27) at the end part of the first shell, the adjusting cavity (4) is fixedly arranged in the first shell (1), the adjusting cavity (4) is connected with an air inlet of the air pump (13), the outlet end of the nasal washing tube (30) extends out of the first shell (1) and is detachably provided with a second rubber plug (34), the inlet end of the nasal washing tube is connected with an air outlet of the air pump (13), the liquid storage bin (31) is communicated with the nasal suction tube (3) through a flow passage (33), the liquid storage bin (31) is provided with a water injection port, and a one-way valve plug (32) is arranged at the water injection port; the air outlet of the air pump (13) is also connected with an air outlet on the second shell (10) through an air outlet pipe (20), and the air outlet is detachably provided with a third rubber plug (11);
the dirt storage cup (7) is separably connected to the first shell (1), the air inlet section (2) further extends outwards to form a cup inlet section (8) with a long length, the adjusting cavity (4) further extends outwards to form a cup outlet section (9) with a short length, and the cup inlet section (8) and the cup outlet section (9) both extend into the dirt storage cup (7);
the linear adjusting component is also included; the first shell (1) is coaxially and rotatably connected with the second shell (10), the linear adjusting assembly is arranged in the adjusting cavity (4), and an air inlet of the air pump (13) is connected with the linear adjusting assembly; the linear adjusting assembly can be driven to linearly change the airflow circulation section by adjusting the first shell (1) to rotate relative to the second shell (2);
the linear adjusting assembly comprises a sleeve (16), a piston (15), an adjusting valve core (19), a nut (28) and a fixed pipe (17); the sleeve (16) is fixed in the adjusting cavity (4), one end of the sleeve facing the air inlet section (2) is closed, and the other end opposite to the closed end is open; the fixed pipe (17) is fixed in the sleeve (16), one end of the fixed pipe facing the air inlet section (2) is closed, the other end opposite to the closed end is open and extends out of the adjusting cavity (4) to be connected with an air inlet of the air pump (13); the piston (15), the adjusting valve core (19) and the nut (28) are sequentially arranged on the fixed pipe (17) from the closed end to the open end of the fixed pipe, the piston (15), the sleeve (16) and the fixed pipe (17) form dynamic seal, a through hole (26) communicated with the interior of the fixed pipe (17) is further formed in the part, located between the piston (15) and the adjusting valve core (19), of the fixed pipe (17), an external thread (22) matched with the nut (28) is arranged on the part below the through hole (26), and the nut (28) and the adjusting cavity (4) form linear guide matching; the outer wall of the adjusting valve core (19) is provided with a plurality of adjusting grooves (25), and the area of the radial section of each adjusting groove (25) is linearly increased from back to front or approximately linearly increased along the axial direction of the adjusting valve core (19);
the inlet end of the nose washing pipe (30) is connected with the air outlet of the air pump (13) through a spiral hose (29) sleeved on the periphery of the adjusting cavity (4).
2. The nasal cavity cleaning nursing device of claim 1,
the piston (15) is connected with the adjusting valve core (19) through a plurality of first connecting ribs (23), and the adjusting valve core (19) is connected with the nut (28) through a plurality of second connecting ribs (24).
3. The nasal cavity cleaning nursing device of claim 2,
the piston (15), the first connecting rib (23), the adjusting valve core (19), the second connecting rib (24) and the nut (28) are integrally connected.
4. The nasal cavity cleaning nursing device of claim 1,
and a limiting shoulder (26) capable of restraining the adjusting valve core (19) is formed between the part of the fixed pipe (17) provided with the thread (22) and the part without the thread.
5. The nasal cavity cleaning nursing device of claim 2,
the first housing (1) and the second housing (10) are rotationally connected by a slip ring (12).
6. The nasal cavity cleaning nursing device of claim 1,
the inside of washing nose pipe (30) is including major diameter section and path section, the path section passes through runner (33) with stock solution storehouse (31) intercommunication, the major diameter section is connected the path section rear.
7. The nasal cavity cleaning nursing device of claim 1,
the end part of the nose sucking pipe (3) used for air inlet and the end part of the nose washing pipe (30) used for air outlet are both in a necking structure.
8. The nasal cavity cleaning nursing device of claim 1,
the dirt storage cup (7) is made of transparent materials.
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| CN201811620864.8A CN109620699B (en) | 2018-12-28 | 2018-12-28 | Nasal cavity cleaning nursing device |
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| CN207822100U (en) * | 2017-06-15 | 2018-09-07 | 西安交通大学医学院第一附属医院 | Nasal irrigator |
| CN107307992A (en) * | 2017-07-18 | 2017-11-03 | 葛海 | Ear nose dedicated cleaner |
| CN109010004A (en) * | 2018-07-12 | 2018-12-18 | 刘慧� | A kind of rhinology liquid medicine flusher |
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|---|---|
| CN109620699A (en) | 2019-04-16 |
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