CN218980061U - Atomization tube body structure for preventing aerosol from spreading - Google Patents
Atomization tube body structure for preventing aerosol from spreading Download PDFInfo
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- CN218980061U CN218980061U CN202222083125.8U CN202222083125U CN218980061U CN 218980061 U CN218980061 U CN 218980061U CN 202222083125 U CN202222083125 U CN 202222083125U CN 218980061 U CN218980061 U CN 218980061U
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Abstract
The utility model discloses an aerosol transmission prevention atomization tube structure, which comprises an atomization connecting tube, wherein one end of the atomization connecting tube is connected with an air inlet of an atomization mask in an inserting way, and the other end of the atomization connecting tube is connected with an aerosol outlet of an atomization cup in an inserting way; the atomizing mask cover is buckled at the mouth and nose of a patient, and exhalation windows are not arranged on the atomizing mask and the atomizing cup; an exhalation window is formed on the outer circumferential surface of the atomization connecting pipe, a filter sleeve for covering the exhalation window is sleeved on the outer circumferential surface of the atomization connecting pipe, and the inner circumferential surfaces of the two ends of the filter sleeve are respectively tightly attached to the outer circumferential surface of the atomization connecting pipe; the utility model has simple structure and convenient use, the atomizing connecting pipe can be directly connected with the existing atomizing mask and atomizing cup for use, has strong universality, meets the requirement that the gas exhaled by a patient is ventilated with the outside, and filters the virus in the gas exhaled by the patient through the filter sleeve in the ventilation process, thereby preventing the virus from being transmitted through aerosol in the air.
Description
Technical Field
The utility model relates to an atomization tube body structure for preventing aerosol from spreading, and belongs to the technical field of medical appliances.
Background
The medical atomizer is mainly used for treating various upper and lower respiratory diseases, such as common cold, fever, cough, asthma, sore throat, pharyngitis, rhinitis, bronchitis, pneumoconiosis and other diseases in the trachea, bronchus, alveolus and chest; the principle of the aerosol inhalation treatment is that the liquid medicine is atomized into tiny particles and then enters the respiratory tract and lung to deposit in a respiratory inhalation mode, so that the purposes of painless, rapid and effective treatment are achieved; the compressed air atomizer is a medical device which adopts an energy-saving low-noise compressor to compress clean air filtered by an antibacterial mesh cotton base into a stream of air which is sprayed out by an air nozzle to impact the liquid in an atomizing cup so as to gasify the liquid, and then flows out from a fog outlet to be inhaled by the mouth and nose of a patient so as to achieve the purpose of taking medicine on the lung and branch capillary vessels.
In the treatment process of infectious diseases such as pneumonia caused by influenza and novel coronaviruses and transmitted by respiration or spray, antiviral treatment sometimes needs to adopt an alpha-interferon atomization inhalation method, as the liquid medicine can form fine particles of 1-5 mu m in the atomization process, wherein smaller particles can be discharged into the air along with the respiration of a patient, and accumulated to form a piece of aerosol along with the increment of the atomization time, the aerosol is quite dangerous for all staff in a disease area due to the fact that the liquid medicine is always carried with viruses transmitted by respiratory tract, and if the disease area does not have air tightness, the liquid medicine can be spread outwards; the traditional atomizing mask is directly connected with the atomizing cup or connected through a pipeline, the air vent is formed in the atomizing mask, and air exhaled by a patient is ventilated with the outside through the air vent in the atomizing mask, so that the traditional atomizing mask does not have complete air tightness in the atomizing process, viruses in the air exhaled by the patient cannot be filtered, and the viruses are transmitted through aerosol in the air.
Disclosure of Invention
The utility model aims at solving the problems in the prior art, and provides an aerosol transmission preventing atomization tube structure which is simple in structure and convenient to use, can be directly connected with the existing atomization mask and the atomization cup for use, has strong universality, has certain air tightness in the atomization process, can meet the requirement of ventilation between the gas exhaled by a patient and the outside, and can filter viruses in the gas exhaled by the patient in the ventilation process, so that the viruses are prevented from being transmitted through the aerosol in the air.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
an atomization tube body structure for preventing aerosol from spreading comprises an atomization connecting tube, wherein one end of the atomization connecting tube is connected with an air inlet of an atomization mask in an inserting manner, and the other end of the atomization connecting tube is connected with an mist outlet of an atomization cup in an inserting manner; the atomizing mask cover is buckled at the mouth and nose of a patient, the edge of the atomizing mask is tightly attached to the face of the patient, and exhalation windows are not arranged on the atomizing mask and the atomizing cup; an expiration window is formed on the outer circumferential surface of the atomization connecting pipe, a filter sleeve for covering the expiration window is sleeved on the outer circumferential surface of the atomization connecting pipe, and the inner circumferential surfaces of the two ends of the filter sleeve are respectively tightly attached to the outer circumferential surface of the atomization connecting pipe.
As a further preferable mode of the utility model, the outer circumferential surfaces of the two ends of the atomizing connecting pipe are respectively sleeved with an elastic protective sleeve, one half of the elastic protective sleeves are elastically sleeved on the outer circumferential surface of the end part of the atomizing connecting pipe, and the other half of the two elastic protective sleeves are respectively and elastically sleeved on the outer circumferential surface of an air inlet of the atomizing mask and the outer circumferential surface of an atomizing outlet of the atomizing cup; before connection, the end part of the elastic protective sleeve far away from the end part of the atomization connecting pipe is outwards turned;
when one end of the atomization connecting pipe is connected with the air inlet of the atomization mask in a plug-in manner, the end part of the elastic protective sleeve, which is outwards turned, of the atomization connecting pipe is inwards turned and reset, so that the elastic protective sleeve is elastically sleeved on the periphery of the plug-in connection part of one end of the atomization connecting pipe and the air inlet of the atomization mask;
after the other end of the atomization connecting pipe is connected with the mist outlet of the atomization cup in a plug-in manner, the end part of the elastic protective sleeve which is outwards rolled up at the other end of the atomization connecting pipe is inwards rolled up and reset, so that the elastic protective sleeve is elastically sleeved on the periphery of the plug-in connection part of the other end of the atomization connecting pipe and the mist outlet of the atomization cup;
is used for ensuring the air tightness of the joint of the atomizing connecting pipe and the atomizing mask and the joint of the atomizing connecting pipe and the atomizing cup.
As a further preferred aspect of the utility model, the width of the exhalation window is greater than the radius of the nebulization mouthpiece and less than the diameter of the nebulization mouthpiece; the structural strength of the atomization connecting pipe is ensured while the ventilation requirement is met.
As a further preferred aspect of the present utility model, the shape of the exhalation window is circular or rectangular; different shapes of expiration windows can be formed according to actual conditions.
As a further preferable mode of the utility model, a gap is arranged between the inner circumferential surface of the filter sleeve and the outer circumferential surface of the atomization connecting pipe, and the two ends of the filter sleeve are respectively contracted and closed and then are closely attached to the outer circumferential surface of the atomization connecting pipe; the inner circumferential surface of the filter sleeve and the outer circumferential surface of the atomization connecting pipe form a certain gas accommodating space, so that the gas exhaled by a patient in the atomization connecting pipe flows out of the gap through the expiration window and then is ventilated with the outside, and the situation that only the local position of the filter sleeve corresponding to the expiration window participates in ventilation is avoided.
As a further preferable mode of the utility model, an inner circumferential surface of the end part of the filter sleeve after the shrinkage closing is adhered with a latex elastic washer; when the filter sleeve is sleeved on the outer circumferential surface of the atomization connecting pipe, the inner circumferential surface of the end part of the filter sleeve is tightly attached to the outer circumferential surface of the atomization connecting pipe through the latex elastic washer, so that certain tightness is provided between the inner circumferential surface of the end part of the filter sleeve and the outer circumferential surface of the atomization connecting pipe, and gas exhaled by a patient is prevented from overflowing between the inner circumferential surface of the end part of the filter sleeve and the outer circumferential surface of the atomization connecting pipe.
As a further preferable mode of the utility model, the surface of the latex elastic washer facing to one side of the atomization connecting pipe is provided with an annular bulge structure, and the outer circumferential surface of the atomization connecting pipe is provided with an annular groove structure correspondingly matched with the annular bulge structure; when the filter sleeve is sleeved on the outer circumferential surface of the atomization connecting pipe, the annular bulge structure formed by the surface of the latex elastic gasket facing one side of the atomization connecting pipe is positioned in the annular groove structure formed by the outer circumferential surface of the atomization connecting pipe, the position of the filter sleeve on the atomization connecting pipe can be limited by matching the annular bulge structure and the annular groove structure, the tightness between the inner circumferential surface of the end part of the filter sleeve and the outer circumferential surface of the atomization connecting pipe is ensured, and gas exhaled by a patient is effectively prevented from overflowing between the inner circumferential surface of the end part of the filter sleeve and the outer circumferential surface of the atomization connecting pipe.
As a further preferable aspect of the present utility model, the middle part of the filter sleeve is a cylindrical tube structure or a corrugated tube structure; the middle part is the filtering cover of bellows body structure can effectively increase the filtering surface of filtering cover, guarantees the validity of filtering the virus of filtering cover.
As a further preferred aspect of the present utility model, the filter cover comprises two nonwoven fabric layers and a meltblown layer located between the two nonwoven fabric layers; the material of the filter sleeve is the same as the existing mask, the function of the filter sleeve is the same as the existing mask, and the filter sleeve is equivalent to a mask for an expiration window; the gas exhaled by the patient is ventilated with the outside through the exhalation window, and in the ventilation process, the melt-blown cloth layer of the filter sleeve is used for filtering viruses in the gas exhaled by the patient, so that the viruses are prevented from overflowing, and the viruses are prevented from being transmitted through aerosol in the air.
As a further preferred aspect of the present utility model, the atomizing mask is a reduced pressure atomizing mask; the border of decompression formula atomizing face guard is can the inflated gasbag structure, improves the laminating degree of atomizing face guard and patient's face, does not have the gap between atomizing face guard and the patient's face, guarantees that the gas that the patient exhales can not spill over between atomizing face guard and the patient's face to reduce the sense of oppression to the patient's face, guarantee the travelling comfort of patient's face.
The utility model has the advantages that:
simple structure, convenient to use, atomizing connecting pipe can be direct with current atomizing face guard and atomizing cup be connected and use, and the commonality is strong, offer expiration window on atomizing connecting pipe to cup joint the filter sleeve that is used for covering expiration window at atomizing connecting pipe periphery, be used for possess certain gas tightness at atomizing in-process, and can satisfy patient's gas and outside and take a breath, and at the in-process of taking a breath, through the virus in the gas of filtering patient's exhaling of filter sleeve, avoid virus excessive, prevent that the virus from propagating through the aerosol in the air.
Drawings
FIG. 1 is a schematic view of the structure of an aerosol mask, aerosol adapter tube and aerosol cup of an embodiment I;
FIG. 2 is a schematic diagram of the structure of the first embodiment after the filter sleeve is sleeved with the atomizing adapter tube;
FIG. 3 is a schematic axial sectional view of the first embodiment after the filter sleeve is sleeved with the atomizing adapter tube;
FIG. 4 is a schematic axial sectional view of a filter housing according to the first embodiment;
FIG. 5 is a schematic view showing the structure of a atomizing adapter tube in the first embodiment;
FIG. 6 is a schematic axial sectional view of a second embodiment of a filter cartridge coupled to an atomizing adapter;
FIG. 7 is a schematic view showing an axial sectional structure of a filter housing in the second embodiment;
FIG. 8 is a schematic view of the structure of a atomizing adapter tube in the second embodiment;
meaning of reference numerals in the drawings:
the device comprises a 1-atomization connecting pipe, a 2-atomization mask, a 3-atomization cup, a 4-exhalation window, a 5-filtration sleeve, a 6-latex elastic gasket, a 7-elastic protection sleeve, an 8-annular bulge structure and a 9-annular groove structure.
Detailed Description
The utility model is described in detail below with reference to the drawings and the specific embodiments.
Example 1
As shown in fig. 1-5, the embodiment is an aerosol-propagation-preventing atomization tube structure, which comprises an atomization connecting tube 1, wherein one end of the atomization connecting tube 1 is connected with an air inlet of an atomization mask 2 in a plug-in manner, and the other end of the atomization connecting tube 1 is connected with an aerosol outlet of an atomization cup 3 in a plug-in manner; the air inlet of the atomizing mask 2 is inserted into one end of the atomizing connecting pipe 1, the mist outlet of the atomizing cup 3 is inserted into the other end of the atomizing connecting pipe 1, the atomizing connecting pipe 1 is in plug connection with the air inlet of the atomizing mask 2, and the plug connection of the atomizing connecting pipe 1 and the mist outlet of the atomizing cup 3 adopts a tight-fit plug connection mode, so that the plug connection has certain air tightness; the atomizing mask 2 is covered and buckled at the mouth and nose of a patient, the edge of the atomizing mask 2 is tightly attached to the face of the patient, and no exhalation window is arranged on the atomizing mask 2 and the atomizing cup 3; an exhalation window 4 is formed on the outer circumferential surface of the atomization connecting pipe 1, a filter sleeve 5 for covering the exhalation window 4 is sleeved on the outer circumferential surface of the atomization connecting pipe 1, and the inner circumferential surfaces of the two ends of the filter sleeve 5 are respectively and tightly attached to the outer circumferential surface of the atomization connecting pipe 1.
In this embodiment, the width of the exhalation window 4 is larger than the radius of the nebulization mouthpiece 1 and smaller than the diameter of the nebulization mouthpiece 1; the structural strength of the atomization connecting pipe 1 is ensured while the ventilation requirement is met; the shape of the exhalation window 4 is rectangular; in practical application, the round exhalation window 4 can be opened according to practical situations.
In the embodiment, a gap is formed between the inner circumferential surface of the filter sleeve 5 and the outer circumferential surface of the atomization connecting pipe 1, and two ends of the filter sleeve 5 are respectively contracted and closed and then are tightly attached to the outer circumferential surface of the atomization connecting pipe 1; the inner circumferential surface of the filter sleeve 5 and the outer circumferential surface of the atomization connecting tube 1 form a certain gas accommodating space, so that the gas exhaled by a patient in the atomization connecting tube 1 flows out of the gap through the exhalation window 4 and then is ventilated with the outside, and only the local position of the filter sleeve 5 corresponding to the exhalation window 4 is prevented from participating in ventilation.
In the embodiment, the inner circumferential surface of the end part of the filter sleeve 5 after shrinkage closing is adhered with a latex elastic washer 6; the latex elastic washer 6 is thinner and has a certain width, and is in surface contact with the outer circumferential surface of the atomization connecting pipe 1; when the filter sleeve 5 is sleeved on the outer circumferential surface of the atomization connecting pipe 1, the inner circumferential surface of the end part of the filter sleeve 5 is tightly attached to the outer circumferential surface of the atomization connecting pipe 1 through the latex elastic washer 6, so that certain tightness is provided between the inner circumferential surface of the end part of the filter sleeve 5 and the outer circumferential surface of the atomization connecting pipe 1, and gas exhaled by a patient is prevented from overflowing between the inner circumferential surface of the end part of the filter sleeve 5 and the outer circumferential surface of the atomization connecting pipe 1.
In the embodiment, the middle part of the filter sleeve 5 is a cylindrical pipe body structure; the filter sleeve 5 comprises two non-woven fabric layers and a melt-blown cloth layer positioned between the two non-woven fabric layers; the material of the filter sleeve 5 is the same as the existing mask, the function of the filter sleeve is the same as the existing mask, and the filter sleeve 5 is equivalent to a mask provided for the expiration window 4; the gas exhaled by the patient is ventilated with the outside through the exhalation window 4, and in the ventilation process, the melt-blown cloth layer of the filter sleeve 5 is used for filtering viruses in the gas exhaled by the patient, so that the viruses are prevented from overflowing, and the viruses are prevented from being transmitted through aerosol in the air.
The atomizing mask 2 in the present embodiment is a pressure-reducing atomizing mask; the border of decompression formula atomizing face guard is can the inflated gasbag structure, improves the laminating degree of atomizing face guard 2 and patient's face, does not have the gap between atomizing face guard 2 and the patient's face, guarantees that the gas that the patient exhales can not spill over between atomizing face guard 2 and the patient's face to reduce the sense of oppression to the patient's face, guarantee the travelling comfort of patient's face.
In practical application, the outer circumferential surfaces of the two ends of the atomizing connecting pipe 1 are respectively sleeved with an elastic protective sleeve 7, one half of the elastic protective sleeves 7 are elastically sleeved on the outer circumferential surface of the end part of the atomizing connecting pipe 1, and the other half of the two elastic protective sleeves 7 are respectively and elastically sleeved on the outer circumferential surface of the air inlet of the atomizing mask 2 and the outer circumferential surface of the atomizing outlet of the atomizing cup 3; before connection, the end part of the elastic protective sleeve 7 far away from the end part of the atomization connecting pipe 1 is outwards turned;
when one end of the atomization connecting pipe 1 is connected with the air inlet of the atomization mask 2 in a plugging manner, the end part of the elastic protective sleeve 7, which is outwards rolled at one end of the atomization connecting pipe 1, is inwards rolled and reset, so that the elastic protective sleeve 7 is elastically sleeved on the periphery of the part, which is connected with the air inlet of the atomization mask 2, of one end of the atomization connecting pipe 1 in a plugging manner;
after the other end of the atomization connecting pipe 1 is connected with the mist outlet of the atomization cup 3 in a plugging manner, the end part of the elastic protective sleeve 7 which is outwards rolled at the other end of the atomization connecting pipe 1 is inwards rolled and reset, so that the elastic protective sleeve 7 is elastically sleeved on the periphery of the plug connection part of the other end of the atomization connecting pipe 1 and the mist outlet of the atomization cup 3;
the elastic protective sleeve 7 is made of rubber materials with thinner thickness and better elasticity, and is used for guaranteeing the air tightness of the joint of the atomizing connecting pipe 1 and the atomizing mask 2 and the joint of the atomizing connecting pipe 1 and the atomizing cup 3.
Example two
As shown in fig. 6-8, this embodiment is an aerosol-preventing atomization tube structure, which is similar to the first embodiment in structure, and differs from the first embodiment only in that:
in the embodiment, the middle part of the filter sleeve 5 is of a corrugated pipe body structure; the filtering surface of the filtering sleeve 5 can be effectively increased by the filtering sleeve 5 with the corrugated pipe body structure at the middle part, so that the effectiveness of the filtering sleeve 5 in filtering viruses is ensured.
In the embodiment, an annular convex structure 8 is formed on the surface of the latex elastic washer 6 facing to one side of the atomization connecting pipe 1, and an annular groove structure 9 correspondingly matched with the annular convex structure 8 is formed on the outer circumferential surface of the atomization connecting pipe 1; when the filter sleeve 5 is sleeved on the outer circumferential surface of the atomization connecting pipe 1, the annular bulge structure 8 formed on the surface of the latex elastic washer 6 facing one side of the atomization connecting pipe 1 is positioned in the annular groove structure 9 formed on the outer circumferential surface of the atomization connecting pipe 1, the annular bulge structure 8 and the annular groove structure 9 are matched to limit the position of the filter sleeve 5 on the atomization connecting pipe 1, the tightness between the inner circumferential surface of the end part of the filter sleeve 5 and the outer circumferential surface of the atomization connecting pipe 1 is ensured, and gas exhaled by a patient is effectively prevented from overflowing between the inner circumferential surface of the end part of the filter sleeve 5 and the outer circumferential surface of the atomization connecting pipe 1.
The use process of the two embodiments is the same, and the specific steps are as follows:
firstly, pouring atomized liquid medicine which is licensed by doctors into an atomizing cup 3, and tightly covering the cup cover of the atomizing cup 3; the bottom of the atomizing cup 3 is connected with an external air supply device through a compressed air conduit; the nebulizing mask 2 is carried on the patient's face;
then, two ends of the atomizing connecting pipe 1 are respectively connected with an air inlet of the atomizing mask 2 and an atomizing outlet of the atomizing cup 3;
after the external air supply device supplies compressed air, the liquid medicine in the atomizing cup 3 is atomized and flows out through the atomizing outlet, and then flows into the atomizing mask 2 through the atomizing connecting pipe 1 for being inhaled by a patient;
the gas exhaled by the patient is ventilated with the outside through an exhalation window 4 on the atomization connecting pipe 1, and in the ventilation process, viruses in the gas exhaled by the patient are filtered through a filter sleeve 5, so that the viruses are prevented from overflowing, and the viruses are prevented from being transmitted through aerosol in the air;
the filter sleeve 5 sleeved on the periphery of the atomization connecting pipe 1 is a disposable article, and after each atomization is finished, the filter sleeve 5 is taken down and discarded according to the specification; the atomizing mask 2, the atomizing cup 3 and the atomizing connecting tube 1 are non-disposable articles and can be reused, but are limited to being reused for the same patient; after each atomization is finished, the atomization mask 2, the atomization cup 3 and the atomization connecting pipe 1 are cleaned and disinfected according to the relevant medical instrument regulations in time, so that medicine residues are prevented, and potential viruses are eliminated; the frequency of replacement of the nebulizing mask 2 is related to the nebulizing frequency, and if nebulizing is done every day, it is recommended to replace the nebulizing mask 2 for 15-30 days, and if it is used infrequently, it is possible to replace the nebulizing mask 2 for 2-3 months; the replacement frequency of the atomizing cup 3 and the atomizing connecting pipe 1 is determined according to the actual use condition, wherein the atomizing connecting pipe 1 can also be used for one time, and the atomizing connecting pipe 1 and the filter sleeve 5 can be discarded according to the specification after the atomization is finished each time.
The utility model has simple structure and convenient use, the atomization connecting pipe can be directly connected with the existing atomization mask and the atomization cup for use, the universality is strong, the atomization connecting pipe is provided with an expiration window, the periphery of the atomization connecting pipe is sleeved with the filter sleeve for covering the expiration window, the filter sleeve is used for having certain air tightness in the atomization process, and can meet the ventilation of the gas exhaled by a patient and the outside, and in the ventilation process, viruses in the gas exhaled by the patient are filtered through the filter sleeve, so that the viruses are prevented from overflowing and the viruses are prevented from being transmitted through aerosol in the air.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "configured" are to be construed broadly, and may be, for example, fixedly connected, configured, detachably connected, configured, or integrally connected, configured; can be mechanically or electrically connected; can be directly connected, can also be indirectly connected through an intermediate medium, and can also be the communication between the two elements; the specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model; it will be appreciated by persons skilled in the art that the above embodiments are not intended to limit the utility model in any way, and that all technical solutions obtained by means of equivalent substitutions or equivalent transformations fall within the scope of the utility model.
Claims (10)
1. An anti-aerosol-spreading atomization tube structure, which is characterized in that: the device comprises an atomization connecting pipe, wherein one end of the atomization connecting pipe is connected with an air inlet of an atomization mask in a plug-in manner, and the other end of the atomization connecting pipe is connected with an mist outlet of an atomization cup in a plug-in manner; the atomizing mask cover is buckled at the mouth and nose of a patient, the edge of the atomizing mask is tightly attached to the face of the patient, and exhalation windows are not arranged on the atomizing mask and the atomizing cup; an expiration window is formed on the outer circumferential surface of the atomization connecting pipe, a filter sleeve for covering the expiration window is sleeved on the outer circumferential surface of the atomization connecting pipe, and the inner circumferential surfaces of the two ends of the filter sleeve are respectively tightly attached to the outer circumferential surface of the atomization connecting pipe.
2. The aerosol-spreading prevention atomizing tube structure according to claim 1, wherein the outer circumferential surfaces of the two ends of the atomizing connecting tube are respectively sleeved with an elastic protective sleeve, one half of the elastic protective sleeves are elastically sleeved on the outer circumferential surface of the end part of the atomizing connecting tube, and the other half of the two elastic protective sleeves are elastically sleeved on the outer circumferential surface of the air inlet of the atomizing mask and the outer circumferential surface of the mist outlet of the atomizing cup.
3. An aerosol-propagation-resistant nebulizing tube body structure according to claim 1, characterized in that the width of the exhalation window is larger than the radius of the nebulizing mouthpiece and smaller than the diameter of the nebulizing mouthpiece.
4. A nebulizing tube structure against aerosol propagation according to claim 1 or 3, characterized in that the shape of the exhalation window is circular or rectangular.
5. The aerosol-spreading prevention atomization tube structure as set forth in claim 1, wherein a gap is provided between the inner circumferential surface of the filter sleeve and the outer circumferential surface of the atomization connecting tube, and two ends of the filter sleeve are respectively contracted and closed and then are closely attached to the outer circumferential surface of the atomization connecting tube.
6. The aerosol-spreading prevention atomizing tube structure as set forth in claim 5, wherein a latex elastic washer is adhered to an inner circumferential surface of the end of the filter sleeve after the shrinkage closing.
7. The aerosol prevention atomizing tube structure as set forth in claim 6, wherein said latex spring washer has an annular projection formed on a surface thereof facing said atomizing adapter tube, and an annular groove formed on an outer circumferential surface thereof in corresponding engagement with said annular projection.
8. An aerosol-transmission-preventing atomizing tube structure according to any one of claims 1, 5, 6, and 7, wherein the middle portion of the filter housing is a cylindrical tube structure or a corrugated tube structure.
9. The aerosol prevention nebulized tube structure of claim 8, wherein the filter sleeve comprises two nonwoven layers and a meltblown layer positioned between the two nonwoven layers.
10. An aerosol prevention nebulizing tube structure according to claim 1, wherein the nebulizing mask is a reduced pressure nebulizing mask.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222083125.8U CN218980061U (en) | 2022-08-09 | 2022-08-09 | Atomization tube body structure for preventing aerosol from spreading |
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| CN202222083125.8U CN218980061U (en) | 2022-08-09 | 2022-08-09 | Atomization tube body structure for preventing aerosol from spreading |
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| CN202222083125.8U Active CN218980061U (en) | 2022-08-09 | 2022-08-09 | Atomization tube body structure for preventing aerosol from spreading |
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