Atomized gas recovery device

Abstract

This invention provides an atomized gas recovery device, comprising a housing, a filter membrane within the housing, and an inhalation component communicating with the interior of the housing. The housing consists of a front shell and a rear shell, with the filter membrane sandwiched between them. An air inlet is located on the front shell, and an air outlet is located on the rear shell. One end of the tube of the inhalation component is an inlet for connecting to the inhalation port of the atomizing device, and the other end is an inhalation port with a flat, round mouthpiece that inserts into a flat, round insertion hole on an inhalation mask. Exhaled gas enters the housing through the air inlet on the front shell, is filtered by the filter membrane, and overflows from the air outlet on the rear shell. The device features a reasonable, simple, and compact structure, high aerosol transmission efficiency, facilitates the recovery of exhaled gas, and is easy to operate.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology and relates to the improvement of medical nebulization technology, specifically a nebulized gas recovery 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 inhalation port, an inlet port, an exhalation inhalation port, and an exhalation one-way valve. The exhalation inhalation port of the atomizing mouthpiece has an internal exhalation one-way valve, and an outwardly extending quick-connect interface II is provided at the exhalation inhalation port for detachable connection to the quick-connect interface I on the atomization recovery device. This patent can filter the gas exhaled 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 that can prevent aerosol spillage, 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. Utility Model Content

[0009] To address the aforementioned problems in the existing technology, this utility model provides an atomized gas recovery device with a reasonable, simple, and compact structure, high aerosol transmission efficiency, which is beneficial for the recovery of exhaled gas and convenient to operate.

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

[0011] An inhalation mask includes a mask body and an insertion hole disposed in the middle of the mask body, characterized in that the insertion hole in the middle of the inhalation mask is a flat oval insertion hole.

[0012] A gas atomizing recovery device includes a housing, a filter membrane inside the housing, and an inhalation component communicating with the interior of the housing. The housing consists of a front shell and a rear shell, with the filter membrane sandwiched between the front and rear shells. An air inlet is provided on the front shell, and an air outlet is provided on the rear shell. The inhalation component is tubular, with one end serving as an inlet for connection to the atomizing device's suction port, and the other end as a suction port. A flat, round mouthpiece is provided on the suction port, which is inserted into a flat, round insertion hole on an inhalation mask. Gas exhaled from the inhalation component enters the housing through the air inlet on the front shell, is filtered by the filter membrane, and overflows from the air outlet on the rear shell.

[0013] Improvements to the above technical solution: The inhalation mask is a closed type, the air inlet of the front shell is provided with a front shell positioning port around it, the rear shell is provided with a rear shell mounting positioning port, the filter membrane is an annular sheet, the inhalation component is tubular, the tube of the inhalation component passes through the front shell positioning port, the middle of the filter membrane, and the rear shell mounting positioning port, the middle of the tube of the inhalation component is provided with an exhalation port with an exhalation one-way valve, and the exhalation port is located in the internal space of the shell, the filter membrane is sleeved on the inhalation component between the exhalation port and the mist inlet, so that the exhaled gas pushes open the exhalation one-way valve after coming out of the exhalation port, and overflows from the air outlet on the rear shell after being filtered by the filter membrane.

[0014] Further improvements to the above technical solution: the flat, round mouthpiece and the inhalation component are separate structures, the rear end of the flat, round mouthpiece is a round tube, the mist inlet of the inhalation component is round, and the rear end of the flat, round mouthpiece and the mist inlet of the inhalation component are detachably connected.

[0015] Further 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.

[0016] 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. The front part of the front shell is frustum-shaped, and the front end of the frustum-shaped front shell is the front shell positioning port. The rear end of the frustum-shaped front shell 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 is used to filter particulate matter, aerosols, bacteria and viruses.

[0017] An improvement to the above technical solution: A front shell positioning buckle is provided on the edge of the front shell 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 shell positioning buckle are rotated and engaged, realizing the detachable installation and fixation of the inhalation component and the front shell; An extension pipe with a side opening extends from the front shell positioning port near the inside of the front shell. The tube of the inhalation component passes through the front shell positioning port into the extension pipe. In the fixed engagement state of the inhalation component and the front shell, 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 shell through the side opening, filtered by the filter membrane, and discharged from the air outlet of the rear shell; An inner protrusion is provided on the other end of the extension pipe away from the front shell positioning port, providing a supporting surface for supporting the inner diameter edge of the filter membrane.

[0018] Another improvement to the above technical solution: the suction component and the front shell are integral structures, the positioning port of the front shell 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.

[0019] 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.

[0020] Compared with the prior art, this utility model has the following advantages and positive effects:

[0021] 1. The atomized gas recovery device of this utility model effectively prevents the leakage of drugs or gases by installing a filter membrane between the front and rear shells and clamping it in a rotating manner, thereby improving the accuracy and safety of drug delivery and preventing exhaled aerosols from spreading into the surrounding environment. Compared with existing technologies, this design is more reliable and can effectively avoid drug waste and aerosol transmission caused by leakage.

[0022] 2. This utility model has a simple and compact structure and is easy to operate: The atomized gas recovery device of this utility model combines aerosol input and exhaled filtration functions, achieving an integrated design with high aerosol transmission efficiency, which is beneficial for 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 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. Robust Fastening Method of This Utility Model: The atomizing gas recovery device of this utility model adopts a method of fastening the front and rear shells by rotating and snapping together. Compared with the one-time fastening method of the prior art, the method of this utility model is simpler, facilitates the replacement of the filter membrane, and ensures a firm assembly that is not prone to loosening, thereby guaranteeing the fixing effect of the filter membrane. This design makes the atomizing gas recovery device more stable during use.

[0024] 4. Excellent filtration effect of this invention: The built-in filter membrane of the atomizing gas recovery device of this invention is circular in shape and adopts a ring-shaped 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 this utility model: The nebulized gas recovery device of this utility model 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.

[0026] 6. The inhalation component in this utility model is plugged into the inhalation mask, making it flexible, convenient, and more effective. Attached Figure Description

[0027] Figure 1 This is a perspective view of an embodiment of an inhalation mask according to the present invention;

[0028] Figure 2 This is an exploded view of the structure of Embodiment 1 of the atomized gas recovery device of this utility model;

[0029] Figure 3 This is an exploded view of the shell and filter membrane in Embodiment 1 of the atomized gas recovery device of this utility model;

[0030] Figure 4 This is an exploded view of the front shell and the suction component in Embodiment 1 of the atomized gas recovery device of this utility model;

[0031] Figure 5 This is an exploded view of the inhalation component structure in Embodiment 1 of the atomized gas recovery device of this utility model;

[0032] Figure 6 This is an exploded view of the assembly of the inhalation component, housing, and filter membrane in Embodiment 1 of the atomized gas recovery device of this utility model;

[0033] Figure 7 This is a perspective view of the assembled inhalation component, housing, and filter membrane in Embodiment 1 of the present invention for an atomized gas recovery device;

[0034] Figure 8 This is an exploded assembly diagram of the flat, round mouthpiece and the suction component, which are separate structures, in Embodiment 1 of the atomized gas recovery device of this utility model.

[0035] Figure 9 This is an exploded view of the assembly of the front shell and the suction component in Embodiment 2 of the present invention for an atomized gas recovery device;

[0036] Figure 10 This is a perspective view of the front shell and the suction component after assembly in Embodiment 2 of the atomized gas recovery device of this utility model;

[0037] Figure 11 This is an exploded view of the shell and filter membrane in Embodiment 2 of the atomized gas recovery device of this utility model;

[0038] Figure 12 This is a perspective view of the assembled shell and filter membrane in Embodiment 2 of the atomized gas recovery device of this utility model;

[0039] Figure 13 This is a perspective view of an atomizing gas recovery device (excluding an inhalation mask) connected to an atomizer according to this utility model;

[0040] Figure 14 This is a partial cross-sectional view of an atomizing gas recovery device (excluding an inhalation mask) of this utility model after being connected to an atomizer;

[0041] Figure 15 This is a perspective view of the entire atomizing gas recovery device of this utility model after the atomizer is connected.

[0042] The diagram is labeled as follows: 1. Medicine cup; 2. Spacer; 3. Shell; 3.1. Front shell; 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 3.14. Mist inlet; 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. Mist inlet; 3.24. Flat oval mouthpiece with rear port; 4. Filter membrane; 5. Inhalation mask; 5.1. Flat oval insertion hole. Detailed Implementation

[0043] The present invention will be further described in detail below with reference to the accompanying drawings:

[0044] See Figure 1 An embodiment of the present invention provides an inhalation mask, comprising a mask body and an insertion hole provided in the middle of the mask body, wherein the insertion hole in the middle of the inhalation mask is a flat oval insertion hole 5.1.

[0045] Preferably, the inhalation mask is a fully enclosed type. Apart from the face-contact surface, it has only one inlet, namely the inhalation mounting port 5.1. The inhalation mask 5 has an inner lip and an outer lip, allowing it to fit very closely to the face, preventing aerosol from leaking out between the mask and the face. Both inhalation and exhalation occur through the flat, round insertion hole 5.1. The inhalation end of the inhalation component 3.2 is directly inserted and fixed to the inhalation mounting port 5.1 of the inhalation mask 5.

[0046] See Figures 1-8Embodiment 1 of the atomized gas recovery device of this utility model includes an inhalation component 3.2, a housing 3, and a filter membrane 4 within the housing 3. The housing 3 includes a rear housing 3.3 and a front housing 3.1. The filter membrane 4 is sandwiched between the front housing 3.1 and the rear housing 3.3. The front housing 3.1 has a front housing positioning port 3.22, which also serves as the air inlet of the housing. The rear housing 3.3 has an air outlet 3.7 and a rear housing mounting positioning port 3.17. The filter membrane 4 is an annular sheet. The inhalation component 3.2 is tubular, with its tube extending through the front housing positioning port 3.22, the middle of the filter membrane 4, and the rear housing mounting positioning port 3.17. An exhalation port 3.15 with an exhalation one-way valve 3.11 is provided in the middle of the tube of the inhalation component 3.2, and the exhalation port 3.15 is located inside the housing 3. One end of the tube of the inhalation component 3.2 is a mist inlet, which is provided with a flat oval mouthpiece. The flat oval mouthpiece is inserted into the flat oval insertion hole 5.1 in the middle of the inhalation mask 5. The other end of the tube of the inhalation component 3.2 is a mist inlet 3.14, which is used to connect with the mist inlet 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 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 outlet 3.7 on the rear shell 3.2.

[0047] 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.

[0048] Furthermore, a first protrusion 3.12 is provided on the suction component 3.2, which connects to the front shell positioning port 3.22, thus connecting the suction component 3.2 to the front shell 3.1. The front part of the aforementioned front shell 3.1 is frustum-shaped, with the front end of the frustum-shaped front shell 3.1 being the front shell positioning port 3.22, where the diameter is smallest. The rear end of the frustum-shaped front shell 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 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 fastened together by the front shell buckle 3.5 and the rear shell buckle 3.4, thus clamping and fixing the filter membrane 4. The filter membrane 4 is annular in shape, including a circular inner diameter and an outer diameter, and is used to filter particles smaller than 1μm, aerosols, bacteria, and viruses.

[0049] Furthermore, the suction component 3.2 and the front shell 3.1 are an integrated structure. The positioning port 3.22 of the front shell 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 positioning port 3.22 of the front shell, 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.

[0050] 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.

[0051] Specifically, the edge of the flat, round mouthpiece 3.10 is flanged for hooking against the teeth after the mouthpiece is in contact with the teeth. Because the flat, round mouthpiece 3.10 of the inhalation component 3.2 has an elliptical, flat opening, and the one-way expiratory valve 3.11 is located on one side of this opening, when the patient holds the flat, round mouthpiece 3.10 in their mouth, the elliptical opening closely matches the shape of the patient's mouth, providing comfortable use. Furthermore, the one-way expiratory valve 3.11, located on one side of the flat, round mouthpiece 3.10, is positioned on either the patient's left or right side. Regardless of how the patient rotates the flat, round mouthpiece 3.10, the one-way expiratory valve 3.11 remains positioned on either the patient's left or right side. This avoids the one-way exhalation valve 3.11 being located on the upper and lower sides of the inhalation component 3.2, thus preventing the weight of the one-way exhalation valve 3.11 from affecting its opening and closing, resulting in better consistency in use.

[0052] Preferably, such as Figure 12 As shown, the flat, round mouthpiece 3.10 and the suction component 3.2 are separate structures. The rear port 3.24 of the flat, round mouthpiece is a round tube, and the mist inlet 3.23 of the suction component 3.2 is also round. The rear port 3.24 of the flat, round mouthpiece and the mist inlet 3.23 of the suction component 3.2 are detachably connected. This makes it flexible and convenient to use.

[0053] See Figures 8-11This invention relates to 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 shell 3.1 is different. The specific structure is as follows:

[0054] In Example 2, the suction component 3.2 is detachably connected to the front shell 3.1: a front shell positioning buckle 3.20 is provided on the edge of the positioning port 3.22 of the front shell, and a suction component positioning buckle 3.19 is provided on the first protrusion 3.12 of the suction component 3.2. The suction component positioning buckle 3.19 and the front shell 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 shell 3.1. In the fixed state, the first protrusion 3.12 is in contact with the positioning surface 3.21 on the positioning port 3.22 of the front shell, 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 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 3.1 fixed in the 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 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] See Figure 13 , Figure 14The atomized gas recovery device of this utility model (inhalation mask 5 not shown) is used in conjunction with a nebulizer. The nebulizer includes an atomizing unit, a medicine cup 1, and a mist storage tank 2. The medicine cup 1 is provided with a mist outlet, which is connected to the mist inlet 3.14 of the inhalation component 3.2. After the liquid medicine in the medicine cup 1 is atomized, it generates an aerosol in the mist storage tank 2, and 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, and is then filtered by the atomized gas recovery device before being discharged into the air.

[0058] See Figure 15 After the entire atomizing gas recovery device of this utility model is connected to the atomizer, the user will experience better results when wearing the inhalation mask 5.

[0059] When a user uses the atomized gas recovery device in the nebulizer, and the teeth are hooked against the elliptical edge of the flat round mouthpiece 3.10, and the one-way exhalation valve 3.11 is 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.

[0060] Of course, the above description is not intended to limit the present utility model, nor is the present utility model 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 utility model are also within the protection scope of the present utility model.

Claims

1. A gas atomizing recovery device, comprising a housing, a filter membrane within the housing, and an inhalation component communicating with the interior of the housing, wherein the housing comprises a front shell and a rear shell, the filter membrane is sandwiched between the front shell and the rear shell, an air inlet is provided on the front shell, and an air outlet is provided on the rear shell, characterized in that, The inhalation component is tubular, with one end of the tube serving as an inlet for connecting to the mist inlet of the atomizing device, and the other end serving as a mist inlet. The mist inlet is provided with a flat, round mouthpiece, which is inserted into a flat, round socket on an inhalation mask. Gas exhaled from the inhalation component enters the housing through the air inlet on the front shell, is filtered by the filter membrane, and then overflows from the air outlet on the rear shell.

2. The atomizing gas recovery device according to claim 1, characterized in that, The inhalation mask has a closed housing. The front shell has a positioning port around its air inlet, and the rear shell has a mounting port. The filter membrane is an annular sheet, and the inhalation component is tubular. The tube of the inhalation component passes through the positioning port of the front shell, the middle of the filter membrane, and the mounting port of the rear shell. The middle of the tube of the inhalation component has an exhalation port with a one-way valve, and the exhalation port is located inside the housing. The filter membrane is fitted onto the inhalation component between the exhalation port and the mist inlet, so that the exhaled gas pushes open the one-way valve after coming out of the exhalation port, is filtered by the filter membrane, and overflows from the outlet on the rear shell.

3. The atomizing gas recovery device according to claim 2, characterized in that, The flat, round mouthpiece and the inhalation component are separate structures. The rear end of the flat, round mouthpiece is a round tube, and the mist inlet of the inhalation component is also round. The rear end of the flat, round mouthpiece and the mist inlet of the inhalation component are detachably connected.

4. The atomizing gas recovery device according to claim 2 or 3, 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.

5. The atomizing gas recovery device according to claim 2 or 3, characterized in that, 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. The front part of the front shell is frustum-shaped, and the front end of the frustum-shaped front shell is the front shell positioning port. The rear end of the frustum-shaped front shell 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, and is used to filter particulate matter, aerosols, bacteria and viruses.

6. The atomizing gas recovery device according to claim 5, characterized in that, A front shell positioning buckle is provided on the edge of the front shell 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 shell positioning buckle are rotated and engaged to realize the detachable installation and fixation of the inhalation component and the front shell. An extension pipe with a side opening extends from the front shell positioning port near the inside of the front shell. The tube of the inhalation component passes through the front shell positioning port into the extension pipe. In the fixed engagement state of the inhalation component and the front shell, 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 shell through the side opening. After being filtered by the filter membrane, it is discharged from the air outlet of the rear shell. An inner protrusion is provided on the other end of the extension pipe away from the front shell positioning port, providing a support surface for supporting the inner diameter edge of the filter membrane.

7. The atomizing gas recovery device according to claim 5, characterized in that, The suction component and the front shell are integral structures. The positioning port of the front shell 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.

8. The atomizing gas recovery device according to claim 2 or 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.

9. The atomizing gas recovery device according to claim 6 or 7, 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.

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