Atomization gas recovery device and atomization device

Abstract

The atomized gas recovery device comprises a shell and a filter membrane in the shell, the shell comprises a rear shell and a front shell, and the atomized gas recovery device is characterized in that the front shell comprises a front shell cover and a suction component, a front shell positioning opening is formed in the front shell cover, a gas outlet and a rear shell mounting positioning opening are formed in the rear shell, the filter membrane is an annular piece, and the suction component is arranged in the annular piece. And the suction component penetrates through the front shell positioning opening, the filtering membrane and the rear shell mounting positioning opening. An expiration port and an expiration one-way valve are arranged in the middle of a tube body of the inhalation component, a mist inlet located in the shell and at one end of the tube body of the inhalation component is used for being connected with a mist outlet of an atomization device, and the portion, between the expiration port and the mist inlet, of the inhalation component is sleeved with the filter membrane, so that expired gas pushes away the expiration one-way valve after coming out of the expiration port, and the atomization device is used for atomization. And after being filtered by the filter membrane, the air overflows from the air outlet on the rear shell. A mist outlet of the atomization device is connected with a mist inlet of the suction component. And the structure design is reasonable, simple and compact, the aerosol transmission efficiency is high, recovery of exhaled gas is facilitated, and operation and use are convenient.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices and relates to the improvement of medical atomization technology, in particular to an atomization gas recovery device and an atomization device. Background Art

[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. They have broad market prospects.

[0003] The working principle of the nebulizer: The nebulizer converts liquid drugs into tiny aerosol particles in a specific way for patients to inhale. Common compression nebulizers use high-speed movement of compressed gas to collide and crack drugs into tiny aerosol particles; ultrasonic nebulizers use ultrasonic sound energy to make the drug liquid vibrate violently into countless tiny aerosol particles; vibrating mesh nebulizers use ultrasonic vibration film to make the drug liquid pass through tiny mesh holes of fixed diameter to form tiny particles for release. In this process, a large amount of aerosol will inevitably be generated.

[0004] In terms of application scenarios, nebulizers are often used to treat various upper and lower respiratory system diseases, such as asthma, chronic obstructive pulmonary disease, pneumonia, bronchitis, respiratory tract infections, etc. It is an important and effective treatment for respiratory diseases. It is widely used in hospitals, clinics and other medical institutions as well as at home. Nebulizer therapy has a wide range of adaptability and can also be widely used in the nebulization treatment of antibiotics for the treatment of acute and chronic respiratory infections. Nebulizer therapy can achieve local lesion administration, and the drug efficacy can quickly reduce the metabolic burden on the patient's liver and kidneys.

[0005] With the popularization of nebulization therapy, people's awareness of the risks of aerosol-transmitted diseases has increased. First of all, the harm to health, especially during the epidemic of respiratory infectious diseases, the use of nebulizers is more frequent, which also increases the risk of aerosol-transmitted diseases. If the aerosol contains pathogenic microorganisms such as bacteria and viruses, it may cause infection after being inhaled by other people other than the patient, posing a serious threat to the health of the surrounding people. If antibiotic aerosols overflow into the surrounding environment, it will also cause bacteria to become resistant, making treatment more difficult. The spillover of aerosols can cause widespread dissemination, especially in indoor environments such as hospitals or medical environments where air circulation is relatively poor. Once a patient undergoes nebulization treatment, the spilled aerosols are easy to accumulate in the local space, greatly increasing the possibility of infection for medical staff and other patients and even healthy people, and may also lead to an increase in the resistance of pathogens in the surrounding environment. This risk is particularly prominent in areas such as respiratory wards.

[0006] In recent years, with the 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 the spillage and spread of aerosols when using nebulizers and other equipment to ensure the safety of medical staff and patients. This has also prompted the development and application of nebulizer aerosol prevention technology.

[0007] A Chinese patent (application number: 202322148299.2) discloses an atomizing recovery device and an atomizing mouthpiece, which are characterized in that the atomizing recovery device includes a rear shell, a front shell and a filter membrane fixed therebetween, the front shell is provided with an air outlet for the recovery device, the rear shell is provided with an air inlet, and the end of the air inlet pipe connected to the air inlet is a quick-install interface I, which is used to be detachably connected to the quick-install interface II on the atomizing mouthpiece. The atomizing mouthpiece includes a mist outlet, a mist inlet socket, an exhalation mist outlet and an exhalation one-way valve, which are characterized in that the exhalation mist outlet of the atomizing mouthpiece is provided with an exhalation one-way valve, and a quick-install interface II extending outward is provided at the exhalation mist outlet, which is used to be detachably connected to the quick-install interface I on the atomizing recovery device. This patent can filter the gas exhaled from the atomizing mouthpiece to prevent the spread of viruses and bacteria. The filter device and aerosol inhalation device in this patent adopt a split design, which needs to be combined through a three-way pipe to form an anti-aerosol overflow device. The structure is cumbersome, the aerosol transmission efficiency is low, and it is inconvenient to use. Moreover, the design of the three-way pipe makes it easy for the exhaled gas to generate gas resistance at the connection of the three-way pipe, which is easy to condense into droplets, which is not conducive to the recovery of the exhaled gas.

[0008] Therefore, it is necessary to design an atomized gas recovery device and an atomizing device that can avoid aerosol overflow, and has a reasonable structural design, is simple and compact, has high aerosol transmission efficiency, is conducive to the recovery of exhaled gas, and is easy to operate and use. This is a technical problem that needs to be solved urgently in the field. Summary of the invention

[0009] In order to solve the above problems in the prior art, the present invention provides an atomization gas recovery device and an atomization device, and the structure design is reasonable, simple and compact, the aerosol transmission efficiency is high, it is conducive to the recovery of exhaled gas, and it is easy to operate and use.

[0010] The objective of the present invention is achieved through the following technical solutions: 14. The filter assembly of claim 13, wherein the filter is an annular sheet and the inhalation component is an annular sheet. The inhalation component is tubular as a whole. The tube body 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 inhalation port equipped with an exhalation check valve is arranged in the middle of the tube body of the inhalation component and is located in the inner space of the shell. One end of the tube body of the inhalation component is the mist suction port, and the other end is the mist inlet port, which is used to be connected with the mist outlet port of the atomizing device. The filter membrane is sleeved on the inhalation component between the exhalation port and the mist inlet port, so that the exhaled gas pushes open the exhalation check valve after coming out of the exhalation port, and overflows from the air outlet port on the rear shell after being filtered by the filter membrane.

[0011] Improvements to the above technical solution: a one-way valve positioning port is also provided on the tube body of the inhalation component, and a valve sheet and a positioning pin are provided on the exhalation one-way valve. The positioning pin is passed through the one-way valve positioning port to achieve relative installation and fixation of the exhalation one-way valve and the inhalation component. The valve sheet is placed on the outside of the exhalation port and completely covers the exhalation port. The exhalation one-way 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.

[0012] Further improvement of the above technical solution: a first boss is provided on the suction component, and the first boss is connected to the front shell positioning port, so that the suction component is connected to the front shell cover, the front part of the front shell cover is truncated cone-shaped, the front end of the truncated cone-shaped front shell cover is the front shell positioning port, and the rear end of the truncated cone-shaped front shell cover is a raised annular outer edge, a front shell buckle is provided on the annular outer edge, the rear shell shape is a circular ring, and a rear shell buckle is provided on the rear shell outer edge, 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 shape is a circular ring, including a circular inner diameter and an outer diameter, and can be used to filter particles, aerosols, bacteria and viruses smaller than 1μm.

[0013] An improvement on the above technical solution: a front shell cover positioning buckle is provided on the edge of the front shell positioning port, and an intake component positioning buckle is provided on the first boss of the intake component, and the intake component positioning buckle is rotatably engaged with the front shell cover positioning buckle to realize the detachable installation and fixation of the intake component and the front shell cover; an extension pipe with a side opening extends from the front shell positioning port near the interior of the front shell cover, and the tube body of the intake component passes through the extension pipe through the front shell positioning port, and when the intake component and the front shell cover are fixedly engaged, the exhalation port on the intake component tube body corresponds to the side opening, so that exhaled gas is exhaled from the exhalation port and discharged into the interior of the front shell cover from the side opening, and then discharged from the air outlet of the rear shell after being filtered by the filter membrane; an inner boss 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.

[0014] Another improvement to the above technical solution: the suction component and the front shell cover are an integral structure, the front shell positioning port and the first boss on the suction component are integrally connected, and are connected as a whole by ultrasonic welding or adhesive bonding, and a second boss is provided on the suction component to provide a supporting surface for supporting the inner diameter edge of the filter membrane.

[0015] Further improvement of the above technical solution: the outer edge of the front shell is provided with a front shell filter membrane supporting surface for supporting the outer diameter edge of the filter membrane; the inner ring of the rear shell is the rear shell installation positioning port, the outer edge of the rear shell is provided with a rear shell outer edge filter membrane supporting surface for supporting the outer diameter of the filter membrane, and the edge of the rear shell installation positioning port is provided with a rear shell central filter membrane supporting surface for supporting 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 fastening sealing structure under the action of the rear shell central filter membrane supporting surface and the rear shell outer edge filter membrane supporting surface respectively.

[0016] Further improvement of the above technical solution: an oblate oral end is arranged on the mist inhalation port of the inhalation component, and a flange is arranged on the opening edge of the oblate oral end for hanging on the back teeth of the mouth.

[0017] Further improvement to the above technical solution: the mist suction port of the suction component is a circular tube.

[0018] An atomization device includes an aerosol generating device and a recovery device, wherein the aerosol generating device includes a mist outlet, and is characterized in that the recovery device is the above-mentioned atomization gas recovery device, which is connected to the mist outlet of the aerosol generating device through the mist inlet of an inhalation component.

[0019] Compared with the prior art, the present invention has the following advantages and positive effects: 1. The atomized gas recovery device of the present invention can effectively prevent the spillage of drugs or gases by installing a filter membrane between the front shell and the rear shell and clamping and fixing them by rotating and locking, thereby improving the accuracy and safety of drug delivery and preventing the exhaled aerosol from spreading to the surrounding environment. Compared with the existing technology, this design is more reliable and can effectively avoid drug waste and aerosol transmission caused by spillage.

[0020] 2. The structure of the present invention is simple and compact, and it is easy to operate and use: the atomized gas recovery device of the present invention has both aerosol input function and exhaled gas filtering function, realizing an integrated design, high aerosol transmission efficiency, and is conducive to the recovery of exhaled gas. In the prior art, the filtering device and the aerosol inhalation device adopt a split design, which needs to be combined with a three-way pipe to form an anti-aerosol overflow device, which has a cumbersome structure, low aerosol transmission efficiency, and is inconvenient to use; and the design of the three-way pipe makes it easy for the exhaled gas to generate gas resistance at the connection of the three-way pipe, and it is easy to condense into droplets, which is not conducive to the recovery of exhaled gas.

[0021] 3. The firm fastening method of the present invention: The atomized gas recovery device of the present invention adopts a method of fastening the front and rear shells by rotating the buckle. Compared with the one-time fastening method of the prior art, the method of the present invention is simpler, which can facilitate the replacement of the filter membrane, and the assembly is firm and not easy to loosen, thereby ensuring the fixing effect of the filter membrane. This design makes the atomized gas recovery device more stable during use.

[0022] 4. Excellent filtering effect of the present invention: The filter membrane built into the atomized gas recovery device of the present invention is circular in shape and adopts a circular ring sheet design. It can filter various particles, aerosols, bacteria and viruses smaller than 1μm, with significant filtering effect and easy installation and replacement. This design makes it safer during use and effectively reduces the risk of infection.

[0023] 5. Humanized design of the present invention: The atomized gas recovery device of the present invention is provided with a one-way valve positioning port and an exhalation port. The one-way valve positioning port is provided with an exhalation one-way valve, and the exhalation one-way valve is made of soft elastic material, so that the patient is more comfortable during use and reduces breathing resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is an assembly exploded view of a housing and a filter membrane in Example 1 of an atomized gas recovery device of the present invention; Figure 2 This is a structural exploded view of a first embodiment of an atomized gas recovery device of the present invention; Figure 3 It is a structural exploded view of the suction component in Example 1 of an atomized gas recovery device of the present invention; Figure 4It is an assembly exploded view of a first embodiment of an atomized gas recovery device of the present invention; Figure 5 This is a three-dimensional diagram of an atomized gas recovery device embodiment 1 of the present invention after assembly; Figure 6 It is an assembly exploded view of the suction component and the oblate oral end separate body in Example 1 of an atomized gas recovery device of the present invention; Figure 7 It is an assembly exploded view of the suction component configured with a transfer tube in Example 1 of an atomized gas recovery device of the present invention; Figure 8 is a three-dimensional diagram of an inhalation mask used in Embodiment 1 of an atomized gas recovery device of the present invention; Fig. 9 This is a structural exploded view of a second embodiment of an atomized gas recovery device of the present invention; Fig.10 This is a three-dimensional diagram showing one end of the front shell of Example 2 of an atomized gas recovery device of the present invention; Fig.11 This is a structural exploded view of a shell and a filter membrane in Example 2 of an atomized gas recovery device of the present invention; Fig.12 This is a three-dimensional diagram showing one end of the rear shell of Embodiment 2 of an atomized gas recovery device of the present invention; Fig.13 is a schematic diagram of an atomized gas recovery device and an inhalation mask assembled according to the present invention; Fig.14 is a three-dimensional diagram of an atomizer with an atomization gas recovery device according to the present invention; Fig.15 It is a partial cross-sectional view of an atomizer with an atomization gas recovery device according to the present invention.

[0025] The numbers in the figure are: 1, medicine cup; 2, spacer; 3, shell; 3.1, front shell cover; 3.2, inhalation component; 3.3, rear shell; 3.4, rear shell buckle; 3.5, front shell buckle; 3.6, hot melt 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, oblate mouth end; 3.11, exhalation one-way valve; 3.12, first boss; 3.13, second boss; 3.14 , mist inlet; 3.15, exhalation port; 3.16, one-way valve positioning port; 3.17, rear shell installation positioning port; 3.18, rear shell center filter membrane support surface; 3.19, inhalation component positioning buckle; 3.20, front shell cover positioning buckle; 3.21, positioning surface; 3.22, front shell positioning port; 3.23, mist inhalation port; 3.24, oblate mouth with end rear port; 3.25, adapter tube; 4, filter membrane; 5, inhalation mask; 5.1, socket. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below in conjunction with the accompanying drawings: See also Figure 1-Figure 7 , Embodiment 1 of an atomized gas recovery device of the present invention comprises a housing 3 and a filter membrane 4 in the housing 3, the housing 3 comprises a rear housing 3.3 and a front housing, the filter membrane 4 is clamped between the front housing and the rear housing 3.3, the front housing comprises a front housing cover 3.1 and a suction component 3.2, a front housing positioning opening 3.22 is provided on the front housing cover 3.1, and an air outlet 3.7 and a rear housing installation positioning opening 3.17 are provided on the rear housing 3.3. The filter membrane 4 is an annular sheet, the suction component 3.2 is tubular as a whole, and the tube body of the suction component 3.2 passes through the front housing positioning opening 3.22, the middle of the filter membrane 4 and the rear housing installation positioning opening 3.17. An exhalation port 3.15 and an exhalation one-way valve 3.11 are provided in the middle of the tube body of the inhalation component 3.2 and are located in the internal space of the shell 3. One end of the tube body of the inhalation component 3.2 is a mist inhalation port 3.23, and the other end is a mist inlet port 3.14, which is used to be connected to the mist outlet of the atomization device. The filter membrane 4 is sleeved on the inhalation component 3.2 between the exhalation port 3.15 and the mist inlet port 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 overflows from the outlet 3.7 on the rear shell 3.2 after being filtered by the filter membrane 4.

[0027] Specifically: the tube body of the above-mentioned inhalation component 3.2 is also provided with a one-way valve positioning port 3.16, and 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 the 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 from the exhalation port 3.15 in one direction. The rear shell 3.3 has a circular shape, and a rear shell installation positioning port 3.17 is set in the middle of the rear shell 3.3, and a number of smaller diameter outlets 3.7 are evenly arranged around the rear shell installation positioning port 3.17.

[0028] Furthermore, a first boss 3.12 is provided on the suction component 3.2, and the first boss 3.12 is connected to the front shell positioning port 3.22, so that the suction component 3.2 is connected to the front shell cover 3.1. The front part of the front shell cover 3.1 is truncated cone-shaped, and the front end of the truncated cone-shaped front shell cover 3.1 is the front shell positioning port 3.22, where the diameter is the smallest, and the rear end of the truncated cone-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 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 fastened by rotating and clamping the front shell buckle 3.5 and the rear shell buckle 3.4, and the filter membrane 4 is clamped and fixed.

[0029] Preferably, 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 1 μm, aerosols, bacteria and viruses.

[0030] Furthermore, the suction component 3.2 and the front shell cover 3.1 are an integrated whole structure, and the front shell positioning port 3.22 and the first boss 3.12 on the suction component 3.2 are connected in an integrated manner, and are connected as a whole by ultrasonic welding or adhesive bonding. By ultrasonic welding, a hot melt rib 3.6 can be provided around the front shell positioning port 3.22, which serves as a hot melt medium during ultrasonic welding to weld the two. A second boss 3.13 is provided on the suction component 3.2 to provide a support surface for supporting the inner diameter edge of the filter membrane 4.

[0031] Furthermore, the outer edge of the front shell has a front shell filter membrane supporting surface 3.8 for supporting the outer diameter edge of the filter membrane 4; the inner ring of the rear shell 3.3 is the rear shell installation positioning port 3.17, the outer edge of the rear shell 3.3 has a rear shell outer edge filter membrane supporting surface 3.9 for supporting the outer diameter of the filter membrane 4, and the edge 3.17 of the rear shell installation positioning port is provided with a rear shell central filter membrane supporting surface 3.18 for supporting 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 are respectively formed under the action of the rear shell central filter membrane supporting surface 3.18 and the rear shell outer edge filter membrane supporting surface 3.9, forming a fastening and sealing structure.

[0032] Preferably, if Figure 2-Figure 5 As shown, the inhalation port of the inhalation component 3.2 is provided with an oblate oral end 3.10, and the inhalation component 3.2 and the oblate oral end 3.10 are an integral structure. The edge of the oval flat opening on the oblate oral end 3.10 is provided with a flange for the back teeth to hang on. Because the oblate round mouth-containing end 3.10 is an elliptical flat opening, and the exhalation one-way valve 3.11 is arranged on one side of the flat opening of the mist inhalation port 3.10, when the patient holds the mist inhalation port 3.10 after use, the flat opening of the mist inhalation port 3.10 is similar to the shape of the patient's mouth, which is comfortable to use. The exhalation one-way valve 3.11 is arranged on one side of the oblate round mouth-containing end 3.10, which is equivalent to being distributed on the left or right side of the patient. In this way, no matter how the patient rotates the oblate round mouth-containing end 3.10, the exhalation one-way valve 3.11 is distributed on the left or right side of the patient. In this way, the exhalation one-way valve 3.11 can be avoided from being distributed on the upper and lower sides of the diameter of the inhalation component 3.2, thereby avoiding the exhalation one-way valve 3.11's own weight affecting the opening and closing of the exhalation one-way valve 3.11, and thus the consistency of use is better.

[0033] like Figure 6As shown, the inhalation component 3.2 and the oblate round mouth-containing end 3.10 on the mist inhalation port 3.23 can also be set as a split structure, the oblate round mouth-containing end rear port 3.24 is a round tube, the mist inhalation port 3.23 of the inhalation component 3.2 is a round tube, and the oblate round mouth-containing end rear port 3.24 and the mist inhalation port 3.23 of the inhalation component 3.2 are detachably plugged in. In this way, it is flexible and convenient to use.

[0034] like Figure 7 , Figure 8 As shown, a section of adapter tube 3.25 can be configured for the inhalation component 3.2, and the mist inhalation port 3.23 of the inhalation component 3.2 is in the shape of a round tube. One end of the adapter tube 3.25 is plugged into one end of the mist inhalation port 3.23 of the inhalation component 3.2, and the outer diameter of the other end of the adapter tube 3.25 matches the plug hole 5.1 in the middle of the inhalation mask 5, and is plugged into the plug hole 5.1 in the middle of the inhalation mask 5. Multiple adapter tubes 3.25 can be configured, and the diameters of the two ends thereof can also be different, so as to be used in conjunction with the inhalation mask 5 with the plug holes 5.1 of different diameters.

[0035] in addition, Figure 6 or Figure 7 The mist inhalation port 3.23 of the inhalation component 3.2 shown can also be directly plugged into the plug hole 5.1 in the middle of the inhalation mask 5 for use.

[0036] See also Figure 9-12 , Embodiment 2 of an atomized gas recovery device of the present invention, Embodiment 2 has the same basic structure as the above-mentioned Embodiment 1, except that the fixed connection method of the above-mentioned suction component 3.2 and the front shell cover 3.1 is different, and the specific structure is as follows: The suction component 3.2 in Example 2 is connected to the front shell cover 3.1 in a detachable manner: a front shell cover positioning buckle 3.20 is provided on the edge of the above-mentioned front shell positioning opening 3.22, and an 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 is rotatably engaged with the front shell cover positioning buckle 3.20 to achieve detachable installation and fixation of the suction component 3.2 and the front shell cover 3.1. In the fixed state, the first boss 3.12 contacts the positioning surface 3.21 on the front shell cover positioning opening 3.22 to play a sealing role.

[0037] The front shell positioning opening 3.22 extends an extension pipe with a side opening near the front shell cover 3.1, and the tube body of the inhalation component 3.2 passes through the front shell positioning opening 3.22 into the extension pipe. When the inhalation component 3.2 and the front shell cover 3.1 are fixed and engaged, the exhalation port 3.15 on the tube body of the inhalation component 3.2 corresponds to the side opening, so that the exhaled gas is exhaled from the exhalation port 3.15 and discharged from the side opening into the interior of the front shell cover 3.1, and then discharged from the outlet port 3.7 of the rear shell 3.3 after being filtered by the filter membrane 4. The other end of the extension pipe away from the front shell positioning opening 3.22 is provided with an inner boss to provide a support surface for supporting the inner diameter edge of the filter membrane 4.

[0038] The outer edge of the front shell is provided with a front shell filter membrane supporting surface 3.8 for supporting 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 a rear shell installation positioning port 3.17, the outer edge of the rear shell 3.3 is provided with a rear shell outer edge filter membrane supporting surface 3.9 for supporting the outer diameter of the filter membrane 4, the edge 3.17 of the rear shell installation positioning port is provided with a rear shell central filter membrane supporting surface 3.18 for supporting 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 the outer diameter edge of the filter membrane 4 are respectively formed under the action of the rear shell central filter membrane supporting surface 3.18 and the rear shell outer edge filter membrane supporting surface 3.9, forming a fastening and sealing structure.

[0039] Embodiments 1 and 2 of the atomized gas recovery device of the present invention can be used after being plugged into the socket 5.1 in the inhalation mask 5. Fig.13 shown.

[0040] The inhalation mask 5 is of a closed type, and has only one inlet, namely the plug hole 5.1, except for the face fitting surface. The inhalation mask 5 has an inner lip and an outer lip, which can fit the face of the person very closely to prevent aerosol from overflowing from between the mask and the face. The user inhales and exhales gas through the plug hole 5.1.

[0041] See also Fig.14 , Fig.15 , an embodiment of an atomization device of the present invention comprises an aerosol generating device and a recovery device, wherein the aerosol generating device comprises a mist outlet, and the recovery device adopts the atomization gas recovery device of embodiment 1 or embodiment 2, and is connected to the mist outlet of the aerosol generating device through the mist inlet 3.14 of the inhalation component 3.2. Among them, the aerosol generating device comprises a medicine cup 1, an atomization unit and a mist storage tank 2, after the liquid medicine in the medicine cup 1 is atomized and generates aerosol in the mist storage tank 2, it enters the inhalation component 3.2 through the mist inlet 3.14, and is then inhaled by the user, and the gas exhaled by the user passes through the inhalation component 3.2, and is then filtered by the atomization gas recovery device of embodiment 1 or embodiment 2 and discharged into the air.

[0042] When the user uses the atomization gas recovery device in the atomizer, when the teeth are hooked on the elliptical edge of the mist inhalation port 3.10, and when the exhalation one-way valve 3.11 is distributed on the side of the tube body of the inhalation component 3.2, on the one hand, the efficiency of the user's inhalation of aerosol can be improved, and on the other hand, the gas exhaled by the user can be effectively discharged to stabilize the overall delivery effect.

[0043] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Any changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention also belong to the protection scope of the present invention.

Claims

1. An atomized gas recovery device, comprising a housing and a filter membrane in the housing, wherein the housing comprises a rear housing and a front housing, and the filter membrane is clamped between the front housing and the rear housing, characterized in that: The front shell comprises a front shell cover and an inhalation component, the front shell cover is provided with a front shell positioning port, the rear shell is provided with an air outlet and a rear shell installation positioning port, the filter membrane is an annular sheet, the inhalation component is tubular as a whole, the tube body of the inhalation component passes through the front shell positioning port, the middle of the filter membrane and the rear shell installation positioning port, an exhalation port equipped with an exhalation one-way valve is arranged in the middle of the tube body of the inhalation component and is located in the internal space of the shell, one end of the tube body of the inhalation component is a mist suction port, and the other end is a mist inlet port, which is used to be connected with the mist outlet of the atomization device, the filter membrane is sleeved on the inhalation component between the exhalation port and the mist inlet port, 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.

2. The atomized gas recovery device according to claim 1, characterized in that: A one-way valve positioning port is also provided on the tube body of the inhalation component, and a valve sheet and a positioning pin are provided on the exhalation one-way valve. The positioning pin is passed through the one-way valve positioning port to achieve relative installation and fixation of the exhalation one-way valve and the inhalation component. The valve sheet is placed on the outside of the exhalation port and completely covers the exhalation port. The exhalation one-way 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.

3. The atomized gas recovery device according to claim 1 or 2, characterized in that: The suction component is provided with a first boss, and the first boss is connected to the front shell positioning port, so that the suction component is connected to the front shell cover, the front part of the front shell cover is truncated cone-shaped, the front end of the truncated cone-shaped front shell cover is the front shell positioning port, and the rear end of the truncated cone-shaped front shell cover is a raised annular outer edge, and a front shell buckle is arranged on the annular outer edge. The outer shape of the rear shell is a circular ring, and a rear shell buckle is arranged on the outer edge of the rear shell. The front shell and the rear shell are fastened by rotating the front shell buckle and the rear shell buckle, and the filter membrane is clamped and fixed. The outer shape of the filter membrane is a circular ring, including an inner diameter and an outer diameter of the circle.

4. The atomized gas recovery device according to claim 3, characterized in that: A front shell cover positioning buckle is provided on the edge of the front shell positioning port, and an intake component positioning buckle is provided on the first boss of the intake component, and the intake component positioning buckle is rotatably engaged with the front shell cover positioning buckle to realize the detachable installation and fixation of the intake component and the front shell cover; an extension pipe with a side opening extends from the front shell positioning port close to the interior of the front shell cover, and the tube body of the intake component passes through the front shell positioning port into the extension pipe, and when the intake component and the front shell cover are fixedly engaged, the exhalation port on the intake component tube body corresponds to the side opening, so that the exhaled gas is exhaled from the exhalation port and discharged into the interior of the front shell cover from the side opening, and then discharged from the air outlet of the rear shell after being filtered by the filter membrane; an inner boss 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.

5. The atomized gas recovery device according to claim 3, characterized in that: The suction component and the front shell cover are an integral structure, the front shell positioning port and the first boss on the suction component are integrally connected and connected together by ultrasonic welding or adhesive bonding. A second boss is provided on the suction component to provide a supporting surface for supporting the inner diameter edge of the filter membrane.

6. The atomized gas recovery device according to claim 1 or 2, characterized in that: The outer edge of the front shell has a front shell filter membrane supporting surface for supporting the outer diameter edge of the filter membrane; the inner ring of the rear shell is the rear shell installation positioning port, the outer edge of the rear shell has a rear shell outer edge filter membrane supporting surface for supporting the outer diameter of the filter membrane, and the edge of the rear shell installation positioning port is provided with a rear shell central filter membrane supporting surface for supporting 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 fastening and sealing structure under the action of the rear shell central filter membrane supporting surface and the rear shell outer edge filter membrane supporting surface respectively.

7. The atomized gas recovery device according to claim 4 or 5, characterized in that: The outer edge of the front shell has a front shell filter membrane supporting surface for supporting the outer diameter edge of the filter membrane; the inner ring of the rear shell is the rear shell installation positioning port, the outer edge of the rear shell has a rear shell outer edge filter membrane supporting surface for supporting the outer diameter of the filter membrane, and the edge of the rear shell installation positioning port is provided with a rear shell central filter membrane supporting surface for supporting 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 fastening and sealing structure under the action of the rear shell central filter membrane supporting surface and the rear shell outer edge filter membrane supporting surface respectively.

8. The atomized gas recovery device according to claim 1 or 2, characterized in that: An oblate round mouth-holding end is arranged on the mist inhalation port of the inhalation component, and a flange is arranged on the opening edge of the oblate round mouth-holding end for hanging against the back teeth of the mouth.

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

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

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