Atomizing gas recovery device and atomizing device

Abstract

This invention provides an atomizing gas recovery device and an atomizing device, including a housing and a filter membrane within the housing. The housing includes a rear shell and a front shell. The front shell includes a front cover and an inhalation component. The front cover has a front shell positioning port, and the rear shell has an outlet and a rear shell mounting positioning port. The filter membrane is an annular sheet. The inhalation component passes through the front shell positioning port, the filter membrane, and the rear shell mounting positioning port. The inhalation component has an exhalation port and an exhalation one-way valve in its middle section, located inside the housing. The inlet at one end of the inhalation component's tube connects to the outlet of the atomizing device. The filter membrane is fitted onto the inhalation component between the exhalation port and the inlet, allowing exhaled gas to exit through the exhalation port, push open the exhalation one-way valve, pass through the filter membrane, and overflow from the outlet on the rear shell. The outlet of the atomizing device is connected to the inlet of the inhalation component. The design is reasonable, simple, and compact, with high aerosol transmission efficiency, facilitating the recovery of exhaled gas, and is easy to operate.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology and relates to the improvement of medical nebulization technology, specifically a nebulized gas recovery device and a nebulization device. Background Technology

[0002] Nebulizers are important devices for the treatment of respiratory diseases and are also widely used in vaccination and the treatment of various non-respiratory diseases, with a broad market prospect.

[0003] Regarding the working principle of nebulizers: Nebulizers convert liquid medications into tiny aerosol particles through specific methods for patient inhalation. Common compressor nebulizers use the high-speed movement of compressed gas to impact and break down the medication into tiny aerosol particles; ultrasonic nebulizers use ultrasonic energy to cause the liquid medication to vibrate violently, breaking it into countless fine aerosol particles; vibrating sieve nebulizers use ultrasonic vibration on a diaphragm to force the liquid medication through tiny sieve holes of a fixed diameter, releasing it as fine particles. In this process, a large amount of aerosol is inevitably generated.

[0004] In terms of applications, nebulizers are commonly used to treat various upper and lower respiratory system diseases, such as asthma, chronic obstructive pulmonary disease, pneumonia, bronchitis, and respiratory infections. It is an important and effective treatment method for respiratory diseases, widely used in hospitals, clinics, and homes. Nebulization therapy has a broad range of applications, including the nebulization of antibiotics for the treatment of acute and chronic respiratory infections. Nebulization allows for localized drug delivery, resulting in rapid efficacy and reducing the metabolic burden on the liver and kidneys.

[0005] With the increasing popularity of nebulizer therapy, public awareness of the risks of aerosol-transmitted diseases has risen. The primary concern is the health hazards, especially during respiratory infectious disease outbreaks when nebulizer use is more frequent, further increasing the risk of aerosol-transmitted diseases. If aerosols contain pathogens such as bacteria and viruses, inhalation by individuals other than patients can lead to infection, posing a serious threat to the health of those around them. If antibiotic aerosols spill into the environment, they can cause bacteria to develop drug resistance, increasing the difficulty of treatment. Aerosol spills can cause widespread transmission, particularly in poorly ventilated indoor environments such as hospitals or clinics. When a patient receives nebulizer treatment, spilled aerosols can easily accumulate in the local space, significantly increasing the likelihood of infection for medical staff, other patients, and even healthy individuals. This can also lead to increased drug resistance in pathogens in the surrounding environment. This risk is particularly pronounced in areas such as respiratory wards.

[0006] In recent years, with increasing emphasis on medical and health safety, relevant departments have formulated a series of regulations and standards requiring medical institutions to take effective measures to prevent aerosol spillage and spread when using equipment such as nebulizers, in order to ensure the safety of medical staff and patients. This has also spurred the development and application of aerosol spill prevention technology for nebulizers.

[0007] Chinese Patent (Application No.: 202322148299.2) discloses an atomization recovery device and an atomizing mouthpiece. The atomization recovery device includes a rear shell, a front shell, and a filter membrane fixed between them. The front shell has an air outlet, and the rear shell has an air inlet. The end of the air inlet pipe connected to the air inlet is a quick-connect interface I, used for detachable connection to a quick-connect interface II on the atomizing mouthpiece. The atomizing mouthpiece includes an outlet, an inlet, an exhalation outlet, and an exhalation one-way valve. The exhalation outlet of the atomizing mouthpiece has an internal exhalation one-way valve, and an outwardly extending quick-connect interface II is provided at the exhalation outlet for detachable connection to the quick-connect interface I on the atomization recovery device. This patent can filter the exhaled gas from the atomizing mouthpiece, preventing the spread of viruses and bacteria. The filter and aerosol inhalation device in this patent are designed separately and need to be combined through a three-way tube to form an aerosol spill prevention device. The structure is cumbersome, the aerosol transmission efficiency is low, and it is inconvenient to use. Moreover, the design of the three-way tube makes it easy for exhaled gas to generate gas resistance at the connection of the three-way tube, which can easily condense into droplets and is not conducive to the recovery of exhaled gas.

[0008] Therefore, there is a need to design an atomized gas recovery device and an atomizing device that can prevent aerosol overflow, has a reasonable, simple, and compact structure, high aerosol transmission efficiency, facilitates the recovery of exhaled gas, and is easy to operate. This is a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0009] To address the aforementioned problems in the existing technology, this invention provides an atomized gas recovery device and an atomizing device, which have a reasonable, simple, and compact structure, high aerosol transmission efficiency, facilitate the recovery of exhaled gas, and are convenient to operate and use.

[0010] The objective of this invention is achieved through the following technical solution:

[0011] A gas atomizing recovery device includes a housing and a filter membrane within the housing. The housing comprises a rear shell and a front shell, with the filter membrane sandwiched between the front and rear shells. The front shell includes a front cover and an inhalation component. The front cover has a front shell positioning port, and the rear shell has an outlet and a rear shell mounting positioning port. The filter membrane is an annular sheet. The inhalation component is tubular, with its tube extending through the front shell positioning port, the middle of the filter membrane, and the rear shell mounting positioning port. An exhalation port with a one-way valve is located in the middle of the tube of the inhalation component, within the housing's internal space. One end of the tube is a mist inlet, and the other end is a mist inlet for connection to the outlet of the atomizing device. The filter membrane is fitted onto the inhalation component between the exhalation port and the mist inlet, allowing exhaled gas to exit through the exhalation port, open the one-way valve, pass through the filter membrane, and overflow from the outlet on the rear shell.

[0012] Improvements to the above technical solution: The tube of the inhalation component is also provided with a one-way valve positioning port, and the one-way exhalation valve is provided with a valve plate and a positioning pin. The positioning pin is passed through the one-way valve positioning port to realize the relative installation and fixation of the one-way exhalation valve and the inhalation component. The valve plate is placed outside the exhalation port and completely covers the exhalation port. The one-way exhalation valve is made of soft elastic material, and the gas exhaled from the inhalation component can only be exhaled from the exhalation port in one direction.

[0013] Further improvements to the above technical solution: The inhalation component is provided with a first protrusion, which is connected to the front shell positioning port, so that the inhalation component is connected to the front shell cover. The front part of the front shell cover is frustum-shaped, and the front end of the frustum-shaped front shell cover is the front shell positioning port. The rear end of the frustum-shaped front shell cover is a raised annular outer edge, and a front shell buckle is provided on the annular outer edge. The rear shell is annular in shape, and a rear shell buckle is provided on the outer edge of the rear shell. The front shell and the rear shell are rotated and fastened by the front shell buckle and the rear shell buckle, and the filter membrane is clamped and fixed. The filter membrane is annular in shape, including a circular inner diameter and an outer diameter, and can be used to filter particles smaller than 1μm, aerosols, bacteria and viruses.

[0014] An improvement to the above technical solution: A front housing positioning buckle is provided on the edge of the front housing positioning port, and an inhalation component positioning buckle is provided on the first protrusion of the inhalation component. The inhalation component positioning buckle and the front housing positioning buckle are rotated and engaged, realizing the detachable installation and fixation of the inhalation component and the front housing. An extension pipe with a side opening extends from the front housing positioning port near the inside of the front housing. The tube of the inhalation component passes through the front housing positioning port into the extension pipe. In the fixed engagement state of the inhalation component and the front housing, the exhalation port on the tube of the inhalation component corresponds to the side opening, so that the exhaled gas is exhaled from the exhalation port and discharged into the inside of the front housing through the side opening, filtered by the filter membrane, and discharged from the air outlet of the rear housing. An inner protrusion is provided on the other end of the extension pipe away from the front housing positioning port, providing a supporting surface for supporting the inner diameter edge of the filter membrane.

[0015] Another improvement to the above technical solution: the suction component and the front cover are integral structures, the positioning port of the front cover and the first protrusion on the suction component are integrally connected by ultrasonic welding or adhesive bonding, and the suction component is provided with a second protrusion to provide a support surface for supporting the inner diameter edge of the filter membrane.

[0016] Further improvements to the above technical solution: The outer edge of the front shell has a front shell filter membrane support surface to support the outer diameter edge of the filter membrane; the inner ring of the rear shell is a rear shell mounting and positioning port, the outer edge of the rear shell has a rear shell outer edge filter membrane support surface to support the outer diameter of the filter membrane, and the edge of the rear shell mounting and positioning port has a rear shell center filter membrane support surface to support the inner diameter of the filter membrane; the filter membrane is clamped between the front shell and the rear shell, and the inner diameter edge and outer diameter edge of the filter membrane form a tight sealing structure under the action of the rear shell center filter membrane support surface and the rear shell outer edge filter membrane support surface, respectively.

[0017] Further improvement to the above technical solution: The suction port of the inhalation component is provided with a flat oval mouth end, and the opening edge of the flat oval mouth end is provided with a flange for the teeth to hook after taking it into the mouth.

[0018] A further improvement to the above technical solution: the mist inlet of the inhalation component is a circular tube.

[0019] An atomizing device includes an aerosol generating device and a recovery device. The aerosol generating device includes a mist outlet. The recovery device is characterized in that it is the aforementioned atomized gas recovery device, which is connected to the mist outlet of the aerosol generating device through the mist inlet of the suction component.

[0020] Compared with the prior art, the present invention has the following advantages and positive effects:

[0021] 1. The atomized gas recovery device of the present invention, by installing a filter membrane between the front and rear shells and clamping it in a rotating manner, can effectively prevent the leakage of drugs or gases, improve the accuracy and safety of drug delivery, and avoid the spread of exhaled aerosols into the surrounding environment. Compared with the prior art, this design is more reliable and can effectively avoid drug waste and aerosol transmission caused by leakage.

[0022] 2. The present invention has a simple and compact structure and is easy to operate: The atomized gas recovery device of the present invention combines aerosol input and exhaled filtration functions, achieving an integrated design with high aerosol transmission efficiency, which is beneficial to the recovery of exhaled gas. In the prior art, the filtration device and the aerosol inhalation device are designed separately, requiring a three-way tube to be combined to form an aerosol spill prevention device, which is cumbersome, has low aerosol transmission efficiency, and is inconvenient to use; moreover, the three-way tube design makes it easy for exhaled gas to generate gas resistance at the connection of the three-way tube, which easily condenses into droplets, which is not conducive to the recovery of exhaled gas.

[0023] 3. The robust fastening method of this invention: The atomizing gas recovery device of this invention uses a rotating snap-fit ​​fastening method for the front and rear shells. Compared with the one-time fastening method of the prior art, the method of this invention is simpler, facilitates the replacement of the filter membrane, and ensures a firm assembly that is not prone to loosening, thereby guaranteeing the fixation effect of the filter membrane. This design makes the atomizing gas recovery device more stable during use.

[0024] 4. Excellent filtration effect of the present invention: The built-in filter membrane of the atomized gas recovery device of the present invention is circular in shape and adopts a ring-shaped plate design, which can filter various particles, aerosols, bacteria and viruses smaller than 1μm. The filtration effect is significant and the installation and replacement are convenient. This design makes it safer during use and effectively reduces the risk of infection.

[0025] 5. The humanized design of the present invention: The nebulized gas recovery device of the present invention is equipped with a one-way valve positioning port and an exhalation port. The one-way valve positioning port is equipped with an exhalation one-way valve, which is made of soft and elastic material, making the patient more comfortable during use and reducing breathing resistance. Attached Figure Description

[0026] Figure 1 This is an exploded view of the assembly of the shell and filter membrane in Embodiment 1 of the atomized gas recovery device of the present invention;

[0027] Figure 2 This is an exploded view of the structure of Embodiment 1 of the atomized gas recovery device of the present invention;

[0028] Figure 3 This is an exploded view of the inhalation component in Embodiment 1 of the atomized gas recovery device of the present invention;

[0029] Figure 4 This is an exploded assembly diagram of Embodiment 1 of the atomized gas recovery device of the present invention;

[0030] Figure 5 This is a perspective view of the assembled atomized gas recovery device according to Embodiment 1 of the present invention;

[0031] Figure 6 This is an exploded view of the assembly of the inhalation component and the flat, round mouthpiece in Embodiment 1 of the atomized gas recovery device of the present invention;

[0032] Figure 7 This is an exploded view of the assembly of the inhalation component with the transfer pipe in Embodiment 1 of the atomized gas recovery device of the present invention;

[0033] Figure 8 This is a perspective view of the inhalation mask used in Embodiment 1 of the atomized gas recovery device of the present invention;

[0034] Figure 9 This is an exploded view of the structure of Embodiment 2 of the atomized gas recovery device of the present invention;

[0035] Figure 10 This is a perspective view of one end of the front shell of Embodiment 2 of the atomized gas recovery device of the present invention;

[0036] Figure 11 This is an exploded view of the shell and filter membrane in Embodiment 2 of the atomized gas recovery device of the present invention;

[0037] Figure 12 This is a perspective view of one end of the rear shell of Embodiment 2 of the atomized gas recovery device of the present invention;

[0038] Figure 13 This is a schematic diagram of an atomized gas recovery device and an inhalation mask assembled according to the present invention;

[0039] Figure 14 This is a perspective view of an atomizer with an atomizing gas recovery device according to the present invention;

[0040] Figure 15 This is a partial cross-sectional view of an atomizer with an atomizing gas recovery device according to the present invention.

[0041] The components in the diagram are labeled as follows: 1. Medicine cup; 2. Spacer; 3. Shell; 3.1. Front shell cover; 3.2. Inhalation component; 3.3. Rear shell; 3.4. Rear shell latch; 3.5. Front shell latch; 3.6. Heat-fused rib; 3.7. Air outlet; 3.8. Front shell filter membrane support surface; 3.9. Rear shell outer edge filter membrane support surface; 3.10. Flattened oval mouthpiece; 3.11. One-way exhalation valve; 3.12. First protrusion; 3.13. Second protrusion; 3.14. 3.15. Exhalation port; 3.16. One-way valve positioning port; 3.17. Rear shell mounting positioning port; 3.18. Rear shell center filter membrane support surface; 3.19. Inhalation component positioning buckle; 3.20. Front shell positioning buckle; 3.21. Positioning surface; 3.22. Front shell positioning port; 3.23. Inhalation port; 3.24. Flat round inlet including rear port; 3.25. Adapter pipe; 4. Filter membrane; 5. Inhalation mask; 5.1. Insertion hole. Detailed Implementation

[0042] The present invention will be further described in detail below with reference to the accompanying drawings:

[0043] See Figures 1-7 Embodiment 1 of the atomized gas recovery device of the present invention includes a housing 3 and a filter membrane 4 within the housing 3. The housing 3 includes a rear shell 3.3 and a front shell, with the filter membrane 4 sandwiched between the front shell and the rear shell 3.3. The front shell includes a front shell cover 3.1 and an intake component 3.2. The front shell cover 3.1 has a front shell positioning port 3.22, and the rear shell 3.3 has an outlet 3.7 and a rear shell mounting positioning port 3.17. The filter membrane 4 is an annular sheet, and the intake component 3.2 is tubular in shape, with the tube of the intake component 3.2 passing through the front shell positioning port 3.22, the middle of the filter membrane 4, and the rear shell mounting positioning port 3.17. The inhalation component 3.2 has an exhalation port 3.15 and an exhalation one-way valve 3.11 in the middle of its tube and is located inside the housing 3. One end of the tube of the inhalation component 3.2 is a mist inlet 3.23 and the other end is a mist inlet 3.14, which is used to connect to the mist outlet of the nebulizer. The filter membrane 4 is fitted on the inhalation component 3.2 between the exhalation port 3.15 and the mist inlet 3.14, so that the exhaled gas pushes open the exhalation one-way valve 3.11 after coming out of the exhalation port 3.15, and after being filtered by the filter membrane 4, it overflows from the air outlet 3.7 on the rear housing 3.2.

[0044] Specifically: The inhalation component 3.2 is further provided with a one-way valve positioning port 3.16 on its tube body. The exhalation one-way valve 3.11 is provided with a valve plate and a positioning pin. The positioning pin is passed through the one-way valve positioning port 3.16 to achieve relative installation and fixation of the exhalation one-way valve 3.11 and the inhalation component 3.2. The valve plate is placed outside the exhalation port 3.15 and completely covers the exhalation port 3.15. The exhalation one-way valve 3.11 is made of soft elastic material, and the gas exhaled from the inhalation component 3.2 can only be exhaled unidirectionally from the exhalation port 3.15. The rear shell 3.3 is circular in shape, and a rear shell mounting positioning port 3.17 is provided in the middle of the rear shell 3.3. Several smaller diameter air outlets 3.7 are evenly arranged around the rear shell mounting positioning port 3.17.

[0045] Furthermore, a first protrusion 3.12 is provided on the suction component 3.2, which is connected to the front shell positioning port 3.22, connecting the suction component 3.2 to the front shell cover 3.1. The front part of the aforementioned front shell cover 3.1 is frustum-shaped, and the front end of the frustum-shaped front shell cover 3.1 is the front shell positioning port 3.22, where the diameter is smallest. The rear end of the frustum-shaped front shell cover 3.1 is a raised annular outer edge, and a front shell buckle 3.5 is provided on the annular outer edge of the rear end of the front shell cover 3.1. The aforementioned rear shell 3.3 is annular, and a rear shell buckle 3.4 is provided on the outer edge of the rear shell 3.3. The front shell and the rear shell 3.3 are rotated and locked together by the front shell buckle 3.5 and the rear shell buckle 3.4, thus clamping and fixing the filter membrane 4.

[0046] Preferably, the filter membrane 4 is annular in shape, including an inner diameter and an outer diameter, and is used to filter particulate matter, aerosols, bacteria and viruses smaller than 1μm.

[0047] Furthermore, the suction component 3.2 and the front housing 3.1 are an integrated structure. The front housing positioning port 3.22 and the first boss 3.12 on the suction component 3.2 are integrally connected, using ultrasonic welding or adhesive bonding. When using ultrasonic welding, a heat-melting rib 3.6 can be provided around the front housing positioning port 3.22, serving as the heat-melting medium during ultrasonic welding to weld the two components. A second boss 3.13 is provided on the suction component 3.2, providing a supporting surface for supporting the inner diameter edge of the filter membrane 4.

[0048] Furthermore, the outer edge of the aforementioned front shell has a front shell filter membrane support surface 3.8 to support the outer diameter edge of the filter membrane 4; the inner ring of the rear shell 3.3 is a rear shell mounting positioning port 3.17, the outer edge of the rear shell 3.3 has a rear shell outer edge filter membrane support surface 3.9 to support the outer diameter of the filter membrane 4, and the edge of the rear shell mounting positioning port 3.17 has a rear shell center filter membrane support surface 3.18 to support the inner diameter of the filter membrane 4; the filter membrane 4 is clamped between the front shell and the rear shell 3.3, and the inner diameter edge and outer diameter edge of the filter membrane 4 form a tight sealing structure under the action of the rear shell center filter membrane support surface 3.18 and the rear shell outer edge filter membrane support surface 3.9, respectively.

[0049] Preferably, such as Figures 2-5 As shown, the suction port of the suction component 3.2 is provided with a flat, round mouthpiece 3.10, and the suction component 3.2 and the flat, round mouthpiece 3.10 are an integral structure. The edge of the elliptical flat opening on the flat, round mouthpiece 3.10 is provided with a flange for the teeth to rest after taking it into the mouth. Because the oval-shaped mouthpiece 3.10 has an elliptical, flat opening, and the one-way expiratory valve 3.11 is located on one side of the flat opening of the inhalation port 3.10, when the patient holds the inhalation port 3.10 in their mouth, the flat opening of the inhalation port 3.10 is similar in shape to the patient's mouth, making it comfortable to use. Furthermore, the one-way expiratory valve 3.11 is located on one side of the oval-shaped mouthpiece 3.10, essentially positioned on the patient's left or right side. This ensures that regardless of how the patient rotates the oval-shaped mouthpiece 3.10, the one-way expiratory valve 3.11 remains on either the patient's left or right side. This avoids the one-way valve being located on the upper or lower side of the inhalation component 3.2, thus preventing the weight of the one-way valve 3.11 from affecting its opening and closing. Therefore, it provides better consistency in use.

[0050] like Figure 6 As shown, the flat, round mouthpiece 3.10 on the inhalation component 3.2 and the mist inlet 3.23 can also be configured as a separate structure. The rear port 3.24 of the flat, round mouthpiece is a round tube, and the mist inlet 3.23 of the inhalation component 3.2 is also round. The rear port 3.24 of the flat, round mouthpiece and the mist inlet 3.23 of the inhalation component 3.2 are detachably connected. This makes it flexible and convenient to use.

[0051] like Figure 7 , Figure 8 As shown, an adapter tube 3.25 can also be provided for the inhalation component 3.2. The mist inlet 3.23 of the inhalation component 3.2 is cylindrical. One end of the adapter tube 3.25 is inserted into one end of the mist inlet 3.23 of the inhalation component 3.2, and the outer diameter of the other end of the adapter tube 3.25 matches the insertion hole 5.1 in the middle of the inhalation mask 5 and is inserted into the insertion hole 5.1 in the middle of the inhalation mask 5. Multiple adapter tubes 3.25 can be provided, and their two ends can also have different diameters, so as to be used with inhalation masks 5 with insertion holes 5.1 of different diameters.

[0052] in addition, Figure 6 or Figure 7 The mist inlet 3.23 of the inhalation component 3.2 shown can also be directly plugged into the socket 5.1 in the middle of the inhalation mask 5.

[0053] See Figures 9-12 This invention provides a second embodiment of an atomized gas recovery device. Embodiment 2 has the same basic structure as Embodiment 1, except that the fixing connection method between the inhalation component 3.2 and the front cover 3.1 is different. The specific structure is as follows:

[0054] In Example 2, the suction component 3.2 and the front cover 3.1 are connected in a detachable manner: a front cover positioning buckle 3.20 is provided on the edge of the front cover positioning port 3.22, and a suction component positioning buckle 3.19 is provided on the first boss 3.12 of the suction component 3.2. The suction component positioning buckle 3.19 and the front cover positioning buckle 3.20 are rotated and engaged, so as to realize the detachable installation and fixation of the suction component 3.2 and the front cover 3.1. In the fixed state, the first boss 3.12 is in contact with the positioning surface 3.21 on the front cover positioning port 3.22, which plays a sealing role.

[0055] An extension pipe with a side opening extends from the front housing positioning port 3.22 near the interior of the front housing cover 3.1. The tube of the inhalation component 3.2 passes through the front housing positioning port 3.22 into the extension pipe. With the front housing cover 3.1 of the inhalation component 3.2 in a fixed engaged state, the exhalation port 3.15 on the tube of the inhalation component 3.2 corresponds to the side opening, allowing exhaled air to exit from the exhalation port 3.15 and exit into the interior of the front housing cover 3.1 through the side opening. After being filtered by the filter membrane 4, the air is discharged from the outlet 3.7 of the rear housing 3.3. An inner boss is provided at the other end of the extension pipe away from the front housing positioning port 3.22, providing a supporting surface for supporting the inner diameter edge of the filter membrane 4.

[0056] The front shell has a front shell filter membrane support surface 3.8 on its outer edge to support the outer diameter edge of the filter membrane 4. The rear shell 3.3 is annular in shape. The inner ring of the rear shell 3.3 is the rear shell mounting and positioning port 3.17. The outer edge of the rear shell 3.3 has a rear shell outer edge filter membrane support surface 3.9 to support the outer diameter of the filter membrane 4. The rear shell mounting and positioning port edge 3.17 has a rear shell center filter membrane support surface 3.18 to support the inner diameter of the filter membrane 4. The filter membrane 4 is clamped between the front shell and the rear shell 3.3. The inner diameter edge and outer diameter edge of the filter membrane 4 form a tight sealing structure under the action of the rear shell center filter membrane support surface 3.18 and the rear shell outer edge filter membrane support surface 3.9, respectively.

[0057] Embodiments 1 and 2 of the atomized gas recovery device of the present invention can both be used after being plugged into the insertion hole 5.1 in the inhalation mask 5, such as... Figure 13 As shown.

[0058] The inhalation mask 5 is closed, with only one inlet, namely the port 5.1, except for the face contact surface. The inhalation mask 5 has an inner lip and an outer lip, which can fit very closely to the face and prevent aerosol from leaking out between the mask and the face. The user inhales and exhales through the port 5.1.

[0059] See Figure 14 , Figure 15 An embodiment of the atomizing device of the present invention includes an aerosol generating device and a recovery device. The aerosol generating device includes a mist outlet, and the recovery device adopts the atomized gas recovery device of Embodiment 1 or Embodiment 2, which is connected to the mist outlet of the aerosol generating device through the mist inlet 3.14 of the inhalation component 3.2. The aerosol generating device includes a medicine cup 1, an atomizing unit, and a mist storage tank 2. After the medicine liquid in the medicine cup 1 is atomized, it generates aerosol in the mist storage tank 2, which then enters the inhalation component 3.2 through the mist inlet 3.14 and is inhaled by the user. The user's exhaled air passes through the inhalation component 3.2, is filtered by the atomized gas recovery device of Embodiment 1 or Embodiment 2, and is then discharged into the air.

[0060] When a user uses the atomized gas recovery device in the nebulizer, with their teeth resting on the elliptical edge of the inhalation port 3.10 and the one-way exhalation valve 3.11 distributed on the side of the tube of the inhalation component 3.2, on the one hand, it can improve the efficiency of the user's inhalation of aerosol, and on the other hand, it can effectively expel the user's exhaled gas, stabilizing the overall delivery effect.

[0061] Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention are also within the protection scope of the present invention.

Claims

1. A device for recovering atomized gas, comprising a housing and a filter membrane therein, the housing comprising a rear shell and a front shell, the filter membrane being sandwiched between the front shell and the rear shell, characterized in that, The front shell includes a front cover and an inhalation component. The front cover has a front shell positioning port, and the rear shell has an air outlet and a rear shell mounting positioning port. The filter membrane is an annular sheet. The inhalation component is tubular in shape, with its tube extending through the front shell positioning port, the middle of the filter membrane, and the rear shell mounting positioning port. An exhalation port with a one-way valve is located in the middle of the tube, within the housing. One end of the tube is a mist inlet, and the other end is a mist inlet for connection to the mist outlet of the nebulizer. The filter membrane is fitted over the inhalation component between the exhalation port and the mist inlet, allowing exhaled air to exit through the exhalation port. Push open the one-way exhalation valve, and the air overflows from the outlet on the rear shell after being filtered by the filter membrane. The inhalation component is provided with a first protrusion, which is connected to the positioning port of the front shell, so that the inhalation component is connected to the front shell cover. The front part of the front shell cover is frustum-shaped, and the front end of the frustum-shaped front shell cover is the front shell positioning port. The rear end of the frustum-shaped front shell cover is a raised annular outer edge, and a front shell buckle is provided on the annular outer edge. The rear shell is annular in shape, and a rear shell buckle is provided on the outer edge of the rear shell. The front shell and the rear shell are rotated and locked together by the front shell buckle and the rear shell buckle, and the filter membrane is clamped and fixed. The filter membrane is annular in shape, including a circular inner diameter and an outer diameter.

2. The atomizing gas recovery device according to claim 1, characterized in that, The tube of the inhalation component is also provided with a one-way valve positioning port. The one-way exhalation valve is provided with a valve plate and a positioning pin. The positioning pin is passed through the one-way valve positioning port to realize the relative installation and fixation of the one-way exhalation valve and the inhalation component. The valve plate is placed outside the exhalation port and completely covers the exhalation port. The one-way exhalation valve is made of soft elastic material. The gas exhaled from the inhalation component can only be exhaled from the exhalation port in one direction.

3. The atomizing gas recovery device according to claim 1 or 2, characterized in that, The front housing positioning port has a front housing positioning buckle on its edge, and the first protrusion of the inhalation component has an inhalation component positioning buckle. The inhalation component positioning buckle and the front housing positioning buckle are rotated and engaged, realizing the detachable installation and fixation of the inhalation component and the front housing. An extension pipe with a side opening extends from the front housing positioning port near the inside of the front housing. The tube of the inhalation component passes through the front housing positioning port into the extension pipe. In the fixed engagement state of the inhalation component and the front housing, the exhalation port on the tube of the inhalation component corresponds to the side opening, so that the exhaled air is exhaled from the exhalation port and discharged into the inside of the front housing through the side opening. After being filtered by the filter membrane, it is discharged from the air outlet of the rear housing. The other end of the extension pipe away from the front housing positioning port has an inner protrusion, which provides a support surface for supporting the inner diameter edge of the filter membrane.

4. The atomizing gas recovery device according to claim 1 or 2, characterized in that, The suction component and the front cover are integral structures. The positioning port of the front cover and the first protrusion on the suction component are integrally connected by ultrasonic welding or adhesive bonding. The suction component is provided with a second protrusion, which provides a support surface for supporting the inner diameter edge of the filter membrane.

5. The atomizing gas recovery device according to claim 1 or 2, characterized in that, The front shell has a front shell filter membrane support surface on its outer edge to support the outer diameter edge of the filter membrane; the inner ring of the rear shell is a rear shell mounting and positioning port, and the outer edge of the rear shell has a rear shell outer edge filter membrane support surface to support the outer diameter of the filter membrane. The edge of the rear shell mounting and positioning port has a rear shell center filter membrane support surface to support the inner diameter of the filter membrane; the filter membrane is clamped between the front shell and the rear shell, and the inner and outer diameter edges of the filter membrane form a tight sealing structure under the action of the rear shell center filter membrane support surface and the rear shell outer edge filter membrane support surface, respectively.

6. The atomizing gas recovery device according to claim 3, characterized in that, The front shell has a front shell filter membrane support surface on its outer edge to support the outer diameter edge of the filter membrane; the inner ring of the rear shell is a rear shell mounting and positioning port, and the outer edge of the rear shell has a rear shell outer edge filter membrane support surface to support the outer diameter of the filter membrane. The edge of the rear shell mounting and positioning port has a rear shell center filter membrane support surface to support the inner diameter of the filter membrane; the filter membrane is clamped between the front shell and the rear shell, and the inner and outer diameter edges of the filter membrane form a tight sealing structure under the action of the rear shell center filter membrane support surface and the rear shell outer edge filter membrane support surface, respectively.

7. The atomizing gas recovery device according to claim 4, characterized in that, The front shell has a front shell filter membrane support surface on its outer edge to support the outer diameter edge of the filter membrane; the inner ring of the rear shell is a rear shell mounting and positioning port, and the outer edge of the rear shell has a rear shell outer edge filter membrane support surface to support the outer diameter of the filter membrane. The edge of the rear shell mounting and positioning port has a rear shell center filter membrane support surface to support the inner diameter of the filter membrane; the filter membrane is clamped between the front shell and the rear shell, and the inner and outer diameter edges of the filter membrane form a tight sealing structure under the action of the rear shell center filter membrane support surface and the rear shell outer edge filter membrane support surface, respectively.

8. The atomizing gas recovery device according to claim 1 or 2, characterized in that, The inhalation component has a flat, round mouthpiece on its inhalation port, and the opening edge of the flat, round mouthpiece is provided with a flange for the teeth to catch after the mouth is in contact with the mouth.

9. The atomizing gas recovery device according to claim 1 or 2, characterized in that, The suction port of the inhalation component is a circular tube.

10. An atomizing device, comprising an aerosol generating device and a recovery device, wherein the aerosol generating device includes a mist outlet, characterized in that, The recovery device is the atomized gas recovery device according to any one of claims 1-9, and is connected to the mist outlet of the aerosol generator through the mist inlet of the suction component.

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