Medical atomizer

Abstract

The invention relates to medical atomization equipment, and discloses a medical atomizer. The atomizer comprises an atomizing cup (1), an atomizing body (10) is arranged in the atomizing cup (1), the atomizing body (10) comprises a liquid storage cavity (101) and an atomizing nozzle (20) arranged in the middle of the liquid storage cavity (101), the atomizer further comprises a multi-stage air bag assembly (30) arranged between the inner wall of the liquid storage cavity (101) and the outer wall of the atomizing nozzle (20), the multi-stage air bag assembly (30) comprises a plurality of air bags (301) arranged up and down, an air inlet (302) is formed in the top of the uppermost air bag (301), and an air outlet (302) is formed in the top of the air bag (301). Weak parts (303) capable of being broken under the action of air pressure are arranged between the adjacent air bags (301), and the outer walls of the air bags (301) can be sealed with the inner wall of the liquid storage cavity (101) and the outer wall of the atomizing nozzle (20) when the air bags (301) are in an inflated state. According to the atomizer, the problem that residual liquid medicine cannot be sucked out due to the fact that the liquid medicine is accumulated on the inner wall of the atomizing cup (1) can be effectively avoided, and the atomizer has good adaptability to use of a clinostatism patient.

Description

Technical Field

[0001] The present invention relates to medical atomization equipment, in particular to a medical atomizer. Background Art

[0002] A medical nebulizer is a medical device that atomizes liquid medicine into tiny particles. A compression nebulizer utilizes the Venturi effect, using compressed air from a compressor as the driving force to produce and transmit the aerosol. When the compressed air is ejected from the nozzle, the negative pressure generated between the nozzle and the suction pipe draws the liquid medicine upward. The absorbed liquid hits the baffle above, transforming into a fine mist and spraying it outward.

[0003] Existing clinical nebulizers need to be kept in an upright position when in use, otherwise the liquid in the liquid storage chamber will easily accumulate on the inner wall of the nebulizer cup, making it impossible to suck out the remaining liquid, resulting in excessive residual liquid, and therefore it is not suitable for use by patients in a recumbent position. Summary of the Invention

[0004] The present invention aims to solve the problem that the nebulizers in the prior art are difficult to be used by patients in a supine position, and provides a medical nebulizer.

[0005] In order to solve the above technical problems, the present invention is solved by the following technical solutions: A medical nebulizer includes an atomizing cup, an atomizing body disposed within the cup, the atomizing body comprising a liquid storage chamber and an atomizing nozzle disposed in the middle of the liquid storage chamber, and a multi-stage airbag assembly disposed between the inner wall of the liquid storage chamber and the outer wall of the atomizing nozzle. The multi-stage airbag assembly comprises a plurality of airbags arranged vertically, the top of the uppermost airbag having an air inlet, and adjacent airbags having weak portions that can rupture under air pressure. When the airbags are inflated, the outer walls of the airbags can form a seal with both the inner wall of the liquid storage chamber and the outer wall of the atomizing nozzle. The use of multiple layers of airbags ensures sufficient space for liquid medicine while fully compressing the medicine storage chamber, making the device more suitable for use with recumbent patients.

[0006] Preferably, the atomizing body includes a liquid storage chamber side wall fixed to the inner wall of the atomizing cup, and the atomizing nozzle includes an air inlet pipe arranged in the middle of the atomizing body, an air inlet channel is formed inside the air inlet pipe, a liquid suction pipe is provided outside the air inlet pipe, and a liquid suction channel is formed between the inner wall of the liquid suction pipe and the outer wall of the air inlet pipe; a liquid storage chamber is formed between the outer wall of the liquid suction pipe and the inner surface of the liquid storage chamber side wall, the upper end of the liquid suction pipe is flush with the upper end of the air inlet pipe and is provided with a baffle, and the lower end of the liquid suction channel extends to the bottom of the liquid storage chamber and is connected to the liquid storage chamber. Under the action of compressed gas and the baffle, the liquid medicine can be atomized and sprayed.

[0007] Preferably, adjacent airbags are bonded to each other, and the weak parts are arranged on the bottom surface of the upper airbag and the top surface of the lower airbag and are arranged opposite to each other. The weak parts include an opening arranged on the airbag wall and a barrier film arranged at the opening to seal the opening.

[0008] Preferably, the thickness of the barrier film is smaller than the thickness of the airbag wall, the barrier film is a plastic film, the airbag wall of the airbag is made of polyester fiber, and the barrier film is bonded to the baffle.

[0009] Preferably, the device further includes an airbag mounting plate mounted on the inner wall of the atomizer cup and positioned above the multi-stage airbag assembly. A limiting hole is provided in the middle of the airbag mounting plate for the upper end of the atomizer nozzle to pass through. Multiple mounting holes are evenly distributed around the center of the airbag mounting plate. Connecting posts are provided on the top of the multi-stage airbag assembly, corresponding one-to-one with the mounting holes and passing through the mounting holes. The connecting posts have air inlets formed therein, and are connected to the airbag mounting plate via connecting nuts. The airbag mounting plate secures the multi-stage airbag assembly within the atomizer cup and facilitates replacement of the airbag assembly through a detachable connection.

[0010] Preferably, the device further includes an air intake cover plate disposed above the airbag mounting plate, forming a sealed air intake cavity between the air intake cover plate and the airbag mounting plate, and an air intake hose fixed to the outside of the atomizer cup is connected to the side wall of the air intake cavity. The provision of the air intake cover plate can form an optimal air intake cavity.

[0011] Preferably, the bottom of the air inlet pipe extends to the outside of the atomizer cup and is connected to the compressor via a compressed air pipe. The end of the air inlet hose away from the air inlet chamber is connected to the compressed air pipe. The air inlet hose is provided with a flow control valve. The flow control valve can be used to adjust the air flow in the air inlet hose, thereby better matching the air bag with the amount of liquid medicine in the liquid reservoir.

[0012] Preferably, the airbag mounting plate is provided with an upwardly extending inner and outer annular wall at its center and edge, respectively. The inner annular wall is sleeved onto the atomizing nozzle, and the inner wall of the outer annular wall is provided with internal threads. The outer wall of the air intake cover is threadedly connected to the outer annular wall, and the inner wall abuts against the inner annular wall. A sealing gasket is provided at the connection between the air intake cover and the airbag mounting plate; the air intake hose is plugged into the outer annular wall. The connection between the air intake cover and the airbag mounting plate facilitates assembly and disassembly between the two and within the atomizer cup.

[0013] Preferably, the device further includes a hose fixing portion, comprising a pipe joint provided at the end of the air intake hose, a threaded hole provided on the side wall of the atomizer cup, and a pipe connector threadedly connected to the threaded hole. An annular protrusion is provided on the outer wall of the pipe joint, and the pipe connector is capable of pressing the annular protrusion against the outer surface of the outer annular wall. The provision of the hose fixing portion facilitates the fixing of the hose and limits the installation of the airbag mounting plate, thereby ensuring the stability of the airbag mounting plate.

[0014] Preferably, the top of the atomizer cup is provided with an atomizer cup cover, and the bottom is threadedly connected to the atomizer cup base plate. The atomizer cup base plate is provided with a compressed air pipe joint and an air intake hose joint. A hose connecting pipe is connected to the wall of the compressed air pipe through a tee. The hose connecting pipe is connected to the end of the air intake hose away from the air intake cavity through the hose joint. The compressed air pipe is connected to the air intake pipe through the compressed air pipe joint. The connection between the air intake hose and the compressed air pipe eliminates the need for an additional air source for air intake of the air bag, and the air bag can be inflated directly with the existing compressed air, thereby reducing overall production costs.

[0015] The present invention has significant technical effects due to the adoption of the above technical solutions: The present invention can effectively prevent the accumulation of liquid medicine on the inner wall of the atomizing cup, thereby preventing the remaining liquid medicine from being unable to be sucked out, and has better adaptability for use by patients in a supine position. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention.

[0017] Figure 2 yes Figure 1 Schematic diagram of the half-section structure.

[0018] Figure 3 yes Figure 1 Top view of .

[0019] Figure 4 yes Figure 3 Cross-sectional view of the mid-section with the airbag inflated.

[0020] Figure 5 yes Figure 3 Cross-sectional view of the mid-CC plane with the airbag in the deflated state.

[0021] Figure 6 yes Figure 4 A partial enlarged view of part A.

[0022] Figure 7 This is a cross-sectional view of the multi-stage airbag assembly of the present invention when it is connected to the airbag mounting plate.

[0023] Figure 8 It is a schematic cross-sectional view of the atomizing body of the present invention.

[0024] Figure 9 yes Figure 7 Schematic diagram of the structure of the multi-stage airbag assembly. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0026] Example 1 A medical nebulizer, such as Figure 1-Figure 3 As shown, it includes an atomizer cup 1, and the outer wall of the atomizer cup 1 is also provided with a gripping handle 109 and a mounting portion 110 for mounting a mouthpiece or an inhalation mask. The mouthpiece or inhalation mask is detachably mounted on the mounting portion 110. The atomizer cup 1 is provided with an atomizer body 10, which includes a liquid storage chamber 101 and an atomizer nozzle 20 disposed in the middle of the liquid storage chamber 101. The atomizer body 10 includes a liquid storage chamber side wall 102 fixed to the inner wall of the atomizer cup 1. The atomizer nozzle 20 includes an air inlet pipe 201 disposed in the middle of the atomizer body 10. The air inlet pipe 201 forms an air inlet channel 202. The bottom of the air inlet pipe 201 extends to the lower end surface of the atomizer cup 1 and can be connected to a compressor through a pipeline. The air inlet channel 202 is used to provide compressed air.

[0027] A liquid suction pipe 203 is provided on the outside of the air inlet pipe 201. The liquid suction pipe 203 is coaxially arranged with the air inlet pipe 201, and a liquid suction channel 204 is formed between the inner wall of the liquid suction pipe 203 and the outer wall of the air inlet pipe 201; a liquid storage cavity 101 is formed between the outer wall of the liquid suction pipe 203 and the inner surface of the liquid storage cavity side wall 102, the upper end of the liquid suction pipe 203 is flush with the upper end of the air inlet pipe 201 and a baffle 205 is provided on the upper end of the liquid suction pipe 203, the baffle 205 is radially arranged and both ends are fixed on the end surface of the pipe mouth of the liquid suction pipe 203, the lower end of the liquid suction channel 204 extends to the bottom of the liquid storage cavity 101 and is connected to the liquid storage cavity 101.

[0028] like Figure 8 As shown, in this embodiment, the side wall 102 of the liquid storage chamber is constructed into a tapered shape with a gradually decreasing diameter from top to bottom, so that the liquid can be better concentrated at the bottom of the liquid storage chamber 101. The bottom of the liquid pipette 203 is provided with an inward bend and is fixed to the wall of the air inlet pipe 201. The bend is provided with a liquid suction port connected to the liquid suction channel 204. In addition, to ensure that the liquid can smoothly enter the liquid suction port, a liquid gap is left between the outer wall of the bend and the bottom wall of the liquid storage chamber 101. In addition, both the air inlet pipe 201 and the liquid pipette 203 are tapered tubes with a gradually decreasing diameter from bottom to top, so that they can absorb the liquid and produce an atomization effect under the action of compressed air.

[0029] It also includes a multi-stage air bag assembly 30 disposed between the inner wall of the liquid storage chamber 101 and the outer wall of the atomizing nozzle 20, such as Figure 7 、 Figure 9As shown, the multi-stage airbag assembly 30 includes a plurality of airbags 301 arranged up and down, an air inlet 302 is provided on the top of the uppermost airbag 301, and a weak portion 303 that can rupture under the action of air pressure is provided between adjacent airbags 301. When the airbag 301 is inflated, the outer wall can form a seal with the inner wall of the liquid storage chamber 101 and the outer wall of the suction tube 203. In this embodiment, a three-stage airbag 301 assembly is provided, that is, a first airbag 301, a second airbag 301 and a third airbag 301 are arranged in sequence up and down. The sizes of the three airbags 301 gradually decrease from top to bottom and can fit with the inner wall of the liquid storage chamber 101 when inflated. When the three airbags 301 are inflated, a certain liquid storage space is still left between the lowermost airbag 301 and the bottom wall of the liquid storage chamber 101.

[0030] Among them, in order to facilitate production, each airbag 301 is set as a separate independent airbag 301, and then the adjacent surfaces of adjacent airbags 301 are bonded or hot-melted together, and the weak part 303 is set on the bottom surface of the upper airbag 301 and the top surface of the lower airbag 301 and is arranged relative to each other; the multi-stage airbags 301 can also be integrally formed during processing, and the adjacent airbags 301 share a wall, that is, the lower end wall of the upper airbag 301 constitutes the upper end wall of the lower airbag 301, and when setting the weak part 303, it only needs to be set on the common wall.

[0031] In this embodiment, the weak portion 303 includes an opening 304 provided on the wall of the airbag 301 and a barrier film 305 provided at the opening 304 to seal the opening 304. The thickness of the barrier film 305 is less than the thickness of the wall of the airbag 301. In this embodiment, the barrier film 305 is made of a 0.5 mm thick plastic film, and the wall of the airbag 301 is made of a 2 mm thick polyester fiber. The barrier film 305 is bonded or hot-melted to the opening 304.

[0032] like Figure 4-Figure 6 As shown, the airbag mounting plate 40 is also included, which is mounted on the inner wall of the atomizer cup 1 and above the multi-stage airbag assembly 30. Specifically, an annular retaining edge 111 is provided on the inner wall of the atomizer cup 1. An annular overlapping groove that cooperates with the annular retaining edge 111 is provided at the edge of the lower end surface of the airbag mounting plate 40. The airbag mounting plate 40 overlaps the annular retaining edge 111 through the annular overlapping groove. A limiting hole 401 is provided in the middle of the airbag mounting plate 40 for the upper end of the atomizing nozzle 20 to pass through. If the outer wall of the liquid pipette 203 is tapered, the limiting hole 401 can be kept engaged and sealed on the outer wall of the liquid pipette 203, so that the airbag mounting plate 40 does not rotate and can form a seal. Of course, a sealing ring can also be provided at this connection to further improve the sealing performance.

[0033] The airbag mounting plate 40 is provided with a plurality of mounting holes 402 evenly distributed around the center of the airbag mounting plate 40. The top of the multi-stage airbag assembly 30 is provided with a connecting column 306 which corresponds to the mounting hole 402 one by one and passes through the mounting hole 402. The connecting column 306 is a conventional airbag 301 connector made of hard plastic. The interior of the connecting column 306 constitutes an air inlet 302. The outer wall of the connecting column 306 is provided with an external thread and is connected to the airbag mounting plate 40 through a connecting nut 403. When connecting, the connecting column 306 is passed through the mounting hole 402, and the connecting nut 403 is screwed on the protruding part so that the connecting nut 403 rests on the upper end surface of the airbag mounting plate 40 to complete the fixation of the multi-stage airbag 301 on the airbag mounting plate 40.

[0034] It also includes an air intake cover plate 50 arranged above the airbag mounting plate 40, and a sealed air intake cavity 501 is formed between the air intake cover plate 50 and the airbag mounting plate 40. An air intake hose 60 fixed to the outside of the atomizer cup 1 is connected to the side wall of the air intake cavity 501. The bottom of the air intake pipe 201 extends to the outside of the atomizer cup 1 and is connected to the compressor through the compressed air pipe 70. The end of the air intake hose 60 away from the air intake cavity 501 is connected to the compressed air pipe 70. There is no need to set up an additional air source for the air intake of the airbag 301, and the airbag 301 is directly inflated by the original compressed air, thereby reducing the overall production cost.

[0035] Specifically, the top of the atomizer cup 1 is provided with an atomizer cup cover 104, and the bottom is threadedly connected to the atomizer cup base plate 105. The atomizer cup base plate 105 is provided with a compressed air pipe joint 106 and an air intake hose joint 107. A hose connecting pipe 108 is connected to the wall of the compressed air pipe 70 through a tee. The hose connecting pipe 108 is connected to the end of the air intake hose 60 away from the air intake chamber 501 through the air intake hose joint 107. The compressed air pipe 70 is connected to the air intake pipe 201 through the compressed air pipe joint 106.

[0036] In addition, in order to facilitate the control of gas flow, a flow regulating valve 601 is provided on the air intake hose 60, wherein the flow regulating valve 601 is a conventional flow rate regulator that can adjust the flow of the air intake hose 60 by squeezing the hose by a hand-pushing pulley to change the size of the fluid path.

[0037] An inner annular wall 404 and an outer annular wall 405 extending upward are respectively provided at the center and edge of the airbag mounting plate 40. The inner annular wall 404 is sleeved on the atomizing nozzle 20, and the inner wall of the outer annular wall 405 is provided with an internal thread. The outer wall of the air intake cover plate 50 is threadedly connected to the outer annular wall 405 and the inner wall is tightly pressed against the inner annular wall 404. A sealing gasket is provided at the connection between the air intake cover plate 50 and the airbag mounting plate 40; the air intake hose 60 is inserted into the outer annular wall 405.

[0038] This embodiment also includes a hose fixing portion 602, which comprises a pipe joint 603 disposed at the end of the air intake hose 60, a threaded hole 604 disposed on the side wall of the atomizer cup 1, and a pipe connector 605 threadedly connected to the threaded hole 604. An annular protrusion 606 is provided on the outer wall of the pipe joint 603, and the pipe connector 605 is capable of pressing the annular protrusion 606 against the outer surface of the outer annular wall 405. Furthermore, the pipe joint 603 has a certain degree of hardness, and when it passes through the outer annular wall 405 and extends into the air intake cavity 501, it can further limit the position of the airbag mounting plate 40, further ensuring its installation stability.

[0039] During operation, the airbag 301 is initially in a compressed state and does not occupy a large amount of space in the liquid storage chamber 101, so that the liquid storage chamber 101 has sufficient space to place the liquid medicine. During the atomization process, the air flows through the air inlet hose 60 into the air inlet chamber 501, and then flows into the first airbag 301 through the air inlet port 302 on the connecting column 306. The first airbag 301 will gradually expand to perform preliminary compression on the internal space of the liquid storage chamber 101. As the atomization proceeds, the liquid medicine in the liquid storage chamber 101 gradually becomes smaller, and when the first airbag 301 expands to its maximum and cannot expand further, the air pressure inside the first airbag 301 will gradually increase, thereby breaking through the barrier membrane 305 between the first airbag 301 and the second airbag 301. , the airflow will enter the second airbag 301. Similarly, the second airbag 301 will continue to compress the internal space of the liquid storage chamber 101 after gradually increasing in size and expanding. When the second airbag 301 is filled to the maximum, it will break through the barrier membrane 305 between the second airbag 301 and the third airbag 301, and the airflow will enter the third airbag 301 to compress the internal space of the liquid storage chamber 101 for the third time. At this time, the space in the liquid storage chamber 101 is very small. Even if the device is tilted, the liquid medicine can only tilt within a small range at the bottom of the liquid storage chamber 101 and can still be sucked by the pipette 203, thereby achieving the purpose of preventing the liquid medicine from accumulating on the inner wall of the nebulizer cup 1 and making the remaining liquid medicine unable to be sucked out, making it more suitable for patients in a recumbent position.

[0040] Compared with traditional sealing forms, first of all, the inflatable airbag 301 is more inclusive and the sealing is more stable. At the same time, the application adopts a multi-layer airbag 301, which can not only ensure that there is enough space for the medicine liquid, but also achieve full compression of the medicine storage cavity.

[0041] After atomization is completed, the air inlet cover 50 is rotated to disengage it from the airbag mounting plate 40, and the connecting nut 403 is rotated to cancel the limit on the first airbag 301, so that the airbag mounting plate 40 can be removed, and then the multi-stage airbag assembly 30 can be removed, which makes it easy to clean and disinfect the inside of the atomizer cup 1 and to replace the airbag 301. The atomizer cup 1 can be reused.

[0042] It is easy to understand that those skilled in the art can combine, split, reorganize, etc. the embodiments of the present application based on one or several embodiments provided in the present application to obtain other embodiments, and these embodiments do not exceed the scope of protection of the present application.

[0043] In short, the above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made according to the scope of the patent application of the present invention should fall within the scope of the patent of the present invention.

Claims

1. A medical nebulizer, comprising an nebulizer cup (1), an nebulizer body (10) disposed in the nebulizer cup (1), the nebulizer body (10) comprising a liquid storage chamber (101) and an atomizer nozzle (20) disposed in the middle of the liquid storage chamber (101), characterized in that: The invention also includes a multi-stage airbag assembly (30) arranged between the inner wall of the liquid storage chamber (101) and the outer wall of the atomizing nozzle (20), wherein the multi-stage airbag assembly (30) includes a plurality of airbags (301) arranged vertically, wherein the top of the airbag (301) is provided with an air inlet (302), and between adjacent airbags (301) are provided weak portions (303) capable of being ruptured under the action of air pressure, and when the airbags (301) are inflated, the outer walls of the airbags (301) can form a seal with both the inner wall of the liquid storage chamber (101) and the outer wall of the atomizing nozzle (20).

2. A medical nebulizer according to claim 1, characterized in that: The atomizing body (10) comprises a liquid storage cavity side wall (102) fixed on the inner wall of the atomizing cup (1); the atomizing nozzle (20) comprises an air inlet pipe (201) arranged in the middle of the atomizing body (10); an air inlet channel (202) is formed inside the air inlet pipe (201); a liquid suction pipe (203) is provided outside the air inlet pipe (201); a liquid suction channel (204) is formed between the inner wall of the liquid suction pipe (203) and the outer wall of the air inlet pipe (201); a liquid storage cavity (101) is formed between the outer wall of the liquid suction pipe (203) and the inner surface of the liquid storage cavity side wall (102); the upper end of the liquid suction pipe (203) is flush with the upper end of the air inlet pipe (201) and a baffle (205) is provided at the upper end of the liquid suction pipe (203); and the lower end of the liquid suction channel (204) extends to the bottom of the liquid storage cavity (101) and is in communication with the liquid storage cavity (101).

3. A medical nebulizer according to claim 1 or 2, characterized in that: Adjacent airbags (301) are bonded to each other, and a weak portion (303) is provided on the bottom surface of the upper airbag (301) and the top surface of the lower airbag (301) and is arranged opposite to each other. The weak portion (303) includes an opening (304) provided on the wall of the airbag (301) and a barrier film (305) provided at the opening (304) to seal the opening (304).

4. The medical nebulizer according to claim 3, characterized in that: The thickness of the barrier film (305) is less than the thickness of the wall of the airbag (301). The barrier film (305) is a plastic film. The wall of the airbag (301) is made of polyester fiber. The barrier film (305) is bonded to the opening (304).

5. A medical nebulizer according to claim 1 or 2, characterized in that: The invention also includes an airbag mounting plate (40) mounted on the inner wall of the atomizing cup (1) and located above the multi-stage airbag assembly (30), a limiting hole (401) for the upper end of the atomizing nozzle (20) to pass through is provided in the middle of the airbag mounting plate (40), a plurality of mounting holes (402) are evenly provided on the airbag mounting plate (40) around the center of the airbag mounting plate (40), a connecting column (306) corresponding to the mounting holes (402) and passing through the mounting holes (402) is provided on the top of the multi-stage airbag assembly (30), an air inlet (302) is formed inside the connecting column (306), and the connecting column (306) is connected to the airbag mounting plate (40) through a connecting nut (403).

6. The medical nebulizer according to claim 2, characterized in that: The air intake cover (50) is provided above the air bag mounting plate (40), a sealed air intake cavity (501) is formed between the air intake cover (50) and the air bag mounting plate (40), and an air intake hose (60) fixed to the outside of the atomizer cup (1) is connected to the side wall of the air intake cavity (501).

7. The medical nebulizer according to claim 6, characterized in that: The bottom of the air intake pipe (201) extends to the outside of the atomizer cup (1) and is connected to the compressor via the compressed air pipe (70). The end of the air intake hose (60) away from the air intake cavity (501) is connected to the compressed air pipe (70). The air intake hose (60) is provided with a flow regulating valve (601).

8. The medical nebulizer according to claim 6, characterized in that: An inner annular wall (404) and an outer annular wall (405) extending upward are respectively provided at the center and the edge of the airbag mounting plate (40), the inner annular wall (404) is sleeved on the atomizing nozzle (20), the inner wall of the outer annular wall (405) is provided with an internal thread, the outer wall of the air intake cover plate (50) is threadedly connected to the outer annular wall (405) and the inner wall is tightly pressed against the inner annular wall (404), and a sealing gasket is provided at the connection between the air intake cover plate (50) and the airbag mounting plate (40); the air intake hose (60) is plugged into the outer annular wall (405).

9. A medical nebulizer according to claim 8, characterized in that: The invention also includes a hose fixing portion (602), the hose fixing portion (602) including a pipe joint (603) provided at the end of the air inlet hose (60), a threaded hole (604) provided on the side wall of the atomizer cup (1), and a pipe connector (605) threadedly connected to the threaded hole (604), an annular protrusion (606) is provided on the outer wall of the pipe joint (603), and the pipe connector (605) can press the annular protrusion (606) against the outer surface of the outer annular wall (405).

10. A medical nebulizer according to claim 7, characterized in that: The top of the atomizer cup (1) is provided with an atomizer cup cover (104), and the bottom is threadedly connected to an atomizer cup base plate (105). The atomizer cup base plate (105) is provided with a compressed air pipe joint (106) and an air intake hose joint (107). A hose connecting pipe (108) is connected to the wall of the compressed air pipe (70) through a tee. The hose connecting pipe (108) is connected to the end of the air intake hose (60) away from the air intake chamber (501) through the air intake hose joint (107). The compressed air pipe (70) is connected to the air intake pipe (201) through the compressed air pipe joint (106).

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