CN213407372U - Closed atomizing device - Google Patents

Abstract

The utility model relates to the technical field of medical appliances, in particular to a closed atomization device, which comprises a three-way outer pipe piece and a rotary inner pipe, wherein the three-way outer pipe piece comprises a main pipe section and an atomization connecting pipe section communicated with the main pipe section; the rotary inner pipe is embedded in the main pipe section and is provided with a through hole communicated with the atomization connecting pipe section; the outer wall of the rotating inner pipe is convexly provided with a rotating switch, and the main pipe section is provided with a guide rail hole for the rotating switch to penetrate through. The utility model discloses a closed atomizing device novel structure, operation simple to use can guarantee the airtight continuity of fog inhalation, need not demolish repeatedly and install the breathing pipe, has reduced patient's infection probability, avoids leading to gas leakage because of the operation reason to influence normal treatment, has also reduced the probability that medical staff occupation exposes simultaneously, reduces the numerous miscellaneous nature of operation, and the practicality is high.

Description

Closed atomizing device

Technical Field

The utility model relates to the technical field of medical appliances, concretely relates to closed atomizing device.

Background

At present, when respiratory dysfunction is treated in an intensive care unit, tracheotomy and mechanical ventilation are widely applied to clinic, a breathing machine needs to be connected with a patient after a pipeline device is installed, and patients with lung infection, thick sputum and the like need to be atomized and inhaled. And present atomizer mainly includes ordinary breathing machine screwed pipe, takes heating wire breathing machine screwed pipe and ordinary atomizer, when the aerosol therapy, can install the atomizer after all needing separation breathing machine screwed pipe before the operation. However, the existing breathing machine pipeline has the following problems:

1. during each atomization, the pipeline is separated, so that atomized gas is easy to leak, and spray propagation caused by occupational exposure of medical personnel is easy to increase;

2. during atomization, pipelines are separated, and the phenomenon of leakage of atomized gas has certain influence on patients with poor lung function, so that the treatment condition is influenced;

3. the ventilator pipeline is required to be separated every time of the atomization treatment, and the ventilator pipeline is separated for 2-8 times every day, so that external germs can easily enter the ventilator through the separated ventilator pipeline, and the infection probability of a patient is increased;

4. every aerosol treatment all needs separation breathing machine pipeline operation, needs separation breathing machine pipeline again after aerosol treatment finishes, dismantles the atomizer, operates repeatedly and increases medical personnel's work load, operates not enough portably.

Disclosure of Invention

In order to overcome the shortcoming and the deficiency that exist among the prior art, the utility model aims to provide a closed atomizing device, the device novel structure, operation simple to use can guarantee the airtight continuity of fog inhalation, need not demolish repeatedly and install respiratory tract, and is easy and simple to handle, has both reduced patient's infection probability to avoided because the respiratory tract gas leakage that the operation reason leads to dismantling influences patient's normal treatment, also reduced the probability that medical staff occupation exposes simultaneously, reduce the numerous miscellaneous nature of operation.

The purpose of the utility model is realized through the following technical scheme: a closed atomization device comprises a three-way outer pipe and a rotary inner pipe, wherein the three-way outer pipe comprises a main pipe section and an atomization connecting pipe section which is communicated with the main pipe section in a vertical axial direction; the rotary inner pipe is embedded in the main pipe section and is provided with a through hole communicated with the atomization connecting pipe section; the outer wall of the rotating inner pipe is convexly provided with a rotating switch, and the main pipe section is provided with a guide rail hole for the rotating switch to penetrate through.

Furthermore, the main pipe section consists of an air pipe connecting pipe section, a confluence pipe section and a respirator connecting pipe section which are sequentially connected, and the atomization connecting pipe section is communicated with the confluence pipe section.

Further, the inner diameter of the trachea connecting pipe section is larger than that of the respirator connecting pipe section.

Further, the outer diameter of the rotating inner tube is equal to the inner diameter of the air tube connecting tube section.

Further, the closed atomization device further comprises a sealing cover for sealing the atomization connecting pipe section, the sealing cover comprises a first cover body and a first thread portion arranged at the bottom of the first cover body, a first external thread is arranged on the outer wall of the first thread portion, and a first internal thread in threaded connection with the first external thread is arranged on the inner wall of one end, far away from the main pipe section, of the atomization connecting pipe section.

Furthermore, the outer wall of the first cover body is concavely provided with a containing groove, and a hand twisting block is arranged in the containing groove.

Furthermore, the outer wall of one end, far away from the main pipe section, of the atomization connecting pipe section is provided with a second outer thread in threaded connection with the connecting end of an external atomizer.

Further, this closed atomizing device still includes the adapter, the inner wall of the one end of adapter be equipped with the external screw thread threaded connection's of second switching internal thread, the other end of adapter then with external atomizer registrate connection.

The beneficial effects of the utility model reside in that: the utility model discloses a closed atomizing device novel structure, operation simple to use can guarantee the airtight continuity of fog inhalation, when needing fog inhalation, be connected atomizer and atomizing connecting pipe section, and rotatory this rotary inner tube's rotary switch to the through-hole aim at the output of atomizing connecting pipe section, then can carry out fog inhalation, need not demolish repeatedly and install the breathing pipe, easy and simple to handle, both reduced patient's infection probability, avoided because the breathing pipe gas leakage that the reason of operation leads to dismantling influences patient's normal treatment again, also reduced medical staff occupational exposure's probability simultaneously, reduce the complicated nature of operation; when atomization treatment is not needed, the rotary switch is rotated to the position where the through hole is staggered with the output end of the atomization connecting pipe section, so that atomized liquid medicine can be prevented from entering, normal oxygen supply can be guaranteed, the sealing cover is covered on the input end of the atomization connecting pipe section, the atomization connecting pipe section can be sealed when atomization treatment is not carried out, external bacteria are prevented from entering the three-way outer pipe fitting to cause infection to a patient, and the practicability is high.

Drawings

Fig. 1 is a schematic structural view of a three-way external pipe fitting according to embodiment 1 of the present invention;

fig. 2 is a schematic structural view of the rotating inner tube according to embodiment 1 of the present invention;

fig. 3 is a schematic structural view of the rotating inner tube according to embodiment 1 of the present invention after rotating a certain angle;

fig. 4 is an exploded schematic view of a closed atomizing apparatus according to embodiment 1 of the present invention;

fig. 5 is a sectional view of the closed atomizing device and an external atomizer according to embodiment 1 of the present invention;

fig. 6 is a schematic structural view of the sealing cover according to embodiment 1 of the present invention;

fig. 7 is a schematic structural view of a cross-sectional view of a closed atomization device provided with the adapter and an external atomizer in embodiment 1 of the present invention;

fig. 8 is a schematic structural view of an aerosol treatment apparatus according to embodiment 2 of the present invention;

the reference signs are: 1-three-way external pipe, 11-main pipe, 111-trachea connecting pipe, 112-confluence pipe, 113-respirator connecting pipe, 12-atomization connecting pipe, 121-first internal thread, 122-second external thread, 13-guide rail hole, 2-rotary internal pipe, 21-through hole, 22-rotary switch, 3-sealing cover, 31-first cover, 311-containing groove, 312-hand twisting block, 32-first thread part, 321-first external thread, 4-adapter, 41-adapter internal thread, 5-respirator, 51-exhalation connecting port, 52-inhalation connecting port, 53-atomization connecting port, 6-respiration pipe, 61-exhalation pipe, 62-inhalation pipe, 63-Y type connecting piece, 631-exhalation pipe connecting part, 632-inhalation pipe connecting part, 633-confluence connecting part, 7-respiration leading pipe, 8-atomizer, 81-atomization pipe, 82-atomization cup, and atomization cup, 83-connecting cover, 831-second cover body, 832-second screw part, 8321-second internal screw thread, 9-closed atomization device.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and accompanying fig. 1 to 8, which are not intended to limit the present invention.

Referring to fig. 1 to 6, a closed atomization device 9 includes a three-way outer pipe 1 and a rotary inner pipe 2, where the three-way outer pipe 1 includes a main pipe section 11 and an atomization connecting pipe section 12 communicated with the main pipe section 11; the rotary inner pipe 2 is embedded in the main pipe section 11, and the rotary inner pipe 2 is provided with a through hole 21 communicated with the atomization connecting pipe section 12; the outer wall of the rotating inner pipe 2 is convexly provided with a rotating switch 22, and the main pipe section 11 is provided with a guide rail hole 13 for the rotating switch 22 to pass through.

Preferably, the atomization connecting pipe section 12 is vertically and axially communicated with the main pipe section 11;

the main pipe section 11 is composed of a trachea connecting pipe section 111, a confluence pipe section 112 and a breathing machine connecting pipe section 113 which are connected in sequence, and the atomization connecting pipe section 12 is communicated with the confluence pipe section 112.

The closed atomization device 9 of the embodiment has a novel structure and is simple to operate and use, the rotary inner tube 2 is embedded in the main tube section 11 of the three-way outer tube element 1, and the rotary inner tube 2 is provided with a through hole 21; when liquid medicine atomization treatment is needed, the rotary switch 22 is rotated to rotate the rotary inner tube 2, the rotary inner tube is rotated to the through hole 21 to be aligned with the output end of the atomization connecting tube section 12, so that atomized liquid medicine of the external atomizer 8 sequentially passes through the atomization connecting tube section 12 and the through hole 21 to enter the rotary inner tube 2, meanwhile, the external respirator 5 works normally, after the respirator connecting tube section 113 is communicated with the respirator 5 through a pipeline, oxygen enters the rotary inner tube 2, is mixed with the liquid medicine, and flows to the oxygen respirator through the external pipeline; when the atomization treatment is not needed, the rotary switch 22 is rotated, so that the through hole 21 is staggered with the output end of the atomization connecting pipe section 12, oxygen can flow to the oxygen breathing mask through the rotary inner pipe 2, the normal supply of oxygen is ensured, and oxygen is not leaked to the atomization connecting pipe section 12.

In the traditional atomization treatment operation, the breathing pipeline is required to be dismantled, the 81 atomizing pipelines are installed, and then the breathing pipeline is connected, and the operation of dismantling and installing the breathing pipeline is easy to cause external bacteria to enter the dismantled pipelines, so that a patient is infected, and on the other hand, after the breathing pipeline is dismantled, the normal oxygen supply of the patient is influenced; moreover, the breathing pipeline is required to be detached, the atomizer 8 is arranged and the breathing pipeline is required to be connected in each atomization treatment, the operation is complicated, and the workload of medical staff is increased. And the airtight continuity of aerosol treatment can be guaranteed to closed atomizing device 9 of this embodiment, when needs aerosol treatment, be connected atomizer 8 and atomization connecting pipe section 12, and rotatory this rotary switch 22 to the output of through-hole 21 alignment atomization connecting pipe section 12, then can carry out aerosol treatment, need not demolish repeatedly and install the breathing pipe, and is easy and simple to handle, patient's infection probability has both been reduced, and avoided leading to the breathing pipe gas leakage of dismantling to influence patient's normal treatment because of the reason of the operation, medical staff occupation exposure's probability has also been reduced simultaneously, reduce the numerous miscellaneous nature of operation, and the practicality is high.

Specifically, in the three-way external pipe fitting 1 of the present embodiment, the trachea connection pipe section 111 is disposed to extend outward from the confluence pipe section 112 along a horizontal axis, the ventilator connection pipe section 113 is disposed to extend outward from the confluence pipe section 112 along a horizontal axis and is opposite to the trachea connection pipe section 111, the nebulization connection pipe section 12 is disposed to extend outward from the confluence pipe section 112, and the trachea connection pipe section 111 and the ventilator connection pipe section 113 are symmetrically disposed about a central axis of the nebulization connection pipe section 12.

Specifically, when the atomization treatment is needed, the atomizer 8 is connected with the atomization connecting pipe section 12, and then the rotating inner pipe 2 is rotated to the through hole 21 to align with the output end of the atomization connecting pipe section 12, so that the gas leakage and the infection of the patient caused by the communication between the rotating inner pipe 2 and the outside are avoided; when the atomization treatment is not needed, the rotating inner tube 2 is firstly rotated to the position where the through hole 21 and the output end of the atomization connecting tube section 12 are arranged in a staggered mode, then the atomizer 8 is detached, and the phenomenon that the rotating inner tube 2 is communicated with the outside to cause gas leakage and infection of a patient can be avoided.

In this embodiment, the inner diameter of the tracheal connection tube segment 111 is greater than the inner diameter of the ventilator connection tube segment 113; the outer diameter of the rotating inner tube 2 is equal to the inner diameter of the air tube connecting tube section 111.

The rotating inner tube 2 of the embodiment is embedded in the main tube section 11, specifically, the outer diameter of the rotating inner tube 2 is slightly smaller than the inner diameter of the main tube section 11, so that the rotating inner tube 2 can be ensured to rotate smoothly in the main tube section 11; the inner diameter of the trachea connection pipe section 111 is larger than that of the respirator connection pipe section 113, so that the trachea connection pipe section 111 can be sleeved outside the connection port of an external trachea connection piece (corresponding to the exhalation pipe connection part 631 in embodiment 2), smooth connection with the trachea connection piece is ensured, the respirator connection pipe section 113 can be embedded in the connection port of an external respirator connection pipe piece (corresponding to the inhalation pipe 62 in embodiment 2), and smooth connection with the respirator connection pipe piece is ensured; and then improve the stability of being connected of whole closed atomizing device 9 and trachea connecting piece, breathing machine connecting tube spare, avoid gas leakage or patient to receive phenomenons such as infection.

In this embodiment, the sealed atomizing device 9 further includes a sealing cover 3 for sealing the atomizing connecting pipe section 111, the sealing cover 3 includes a first cover 31 and a first threaded portion 32 disposed at the bottom of the first cover 31, the outer wall of the first threaded portion 32 is provided with a first external thread 321, and the inner wall of the end of the atomizing connecting pipe section 12 away from the collecting pipe section 112 is provided with a first internal thread 121 in threaded connection with the first external thread 321.

The sealed lid 3 that this embodiment set up can cover atomizing connecting pipe section 12 for when need not carrying out the aerosol treatment, seal atomizing connecting pipe section 12, avoid gaseous leakage or patient's infection. Simultaneously, sealed lid 3 realizes threaded connection through the first external screw thread 321 of first screw thread portion 32, with the first internal thread 121 of atomizing connection pipeline section 12 inner wall, improves sealed lid 3 and atomizing connection pipeline section 12's stability of being connected, guarantees sealed effect, avoids sealed lid 3 to loosen easily and takes off and drop, and the practicality is high.

In this embodiment, the outer wall of the first cover 31 is concavely provided with a receiving groove 311, and a hand-tightening block 312 is disposed in the receiving groove 311.

The hand-screwing block 312 of the present embodiment facilitates the fingers to grip and rotate the first cover 31, and the accommodating groove 311 provides an accommodating space for the fingers, thereby providing convenience for screwing the first cover 31; specifically, the hand-twisting block 312 may divide the accommodating groove 311 into two parts, respectively accommodating the thumb and the index finger, so as to facilitate applying force to twist the first cover 31.

In this embodiment, the outer wall of the end of the atomization connecting pipe section 12 away from the confluence pipe section 112 is provided with a second external thread 122 in threaded connection with the connecting end of the external atomizer 8.

The second external thread 122 that this embodiment set up can realize threaded connection with the screw thread of external atomizer 8, improves the connection stability of atomizing connection pipe section 12 and external atomizer 8, avoids getting loose easily and dropping at atomizing treatment in-process atomizer 8, and leads to atomizing connection pipe section 12 even tee bend outer pipe fitting 1 and external intercommunication, causes gas leakage or infects.

In the embodiment, when the atomization treatment is not needed, the sealing cover 3 covers the atomization connecting pipe section 12 for sealing, so that the leakage of gas or the infection of a patient is avoided; when the atomization treatment is needed, the first cover body 31 is screwed through the hand-held screwing block 312, the sealing cover 3 is further twisted off, the second external thread 122 is connected with the thread part of the atomizer 8 through the thread, the atomization connecting pipe section 12 is stably connected with the external atomizer 8, and the circulation of atomized liquid medicine is ensured.

Referring to fig. 7, preferably, the closed atomization device 9 further includes an adapter 4, an inner wall of one end of the adapter 4 is provided with an adapter internal thread 41 in threaded connection with the second external thread 122, and the other end of the adapter 4 is in sleeved connection with an external atomizer 8; the closed atomization device 9 can be suitable for the atomizer 8 with a sleeving structure, and the application universality of the closed atomization device 9 is improved.

Example 2

Referring to fig. 8, an aerosol therapy apparatus includes a ventilator 5, a breathing tube 6, a breathing lead tube 7, an atomizer 8, and a closed aerosol device 9, where the closed aerosol device 9 is the closed aerosol device 9 of embodiment 1; the respirator 5 comprises an expiration connecting port 51, an inspiration connecting port 52 and an atomization connecting port 53, the atomization connecting port 53 is communicated with the atomizer 8 through an atomization tube 81, and the atomizer 8 is connected with the atomization connecting tube section 12;

the breathing pipe fitting 6 comprises an expiration pipeline 61, an inspiration pipeline 62 and a Y-shaped connecting piece 63, and one end of the Y-shaped connecting piece 63 is communicated with the breathing guide pipe 7; the input end of the inhalation pipeline 62 is connected with the inhalation connecting port 52, the output end of the inhalation pipeline 62 is connected with the connecting pipe section 113 of the breathing machine, and the trachea connecting pipe section 111 is connected with one end of the Y-shaped connecting piece 63 far away from the breathing guide pipe 7; the input end of the expiration pipeline 61 is communicated with one end of the Y-shaped connecting piece 63 far away from the respiration leading pipe 7, and the output end of the expiration pipeline 61 is connected with the expiration connecting port 51.

The aerosol treatment equipment of this embodiment novel structure, and is simple in operation, wherein closed atomizing device 9 is connected between inspiratory line 62 and Y type connecting piece 63, make closed atomizing device 9 can continuously connect in breathing pipe fitting 6, then connect atomizer 8 in atomizing connecting pipe section 12 when needs carry out aerosol treatment, rotatory this rotatory inner tube 2 aligns the output of atomizing connecting pipe section 12 to through-hole 21 again, then can carry out aerosol treatment, need not to dismantle repeatedly and install the atomizing connecting pipe piece, avoid resulting in breathing pipe fitting 6 interior gaseous leakage and influence normal oxygen suppliment in the operation of dismantling repeatedly and installing, influence patient's treatment, and can avoid breathing pipe fitting 6 and external intercommunication to lead to infecting.

The atomization treatment equipment of the embodiment is additionally provided with the fixedly arranged closed atomization device 9 on the basis of the breathing machine 5, and has a novel structure; when in normal use, oxygen is output from the breathing machine 5 and passes through the inspiration connecting port 52, the inspiration pipeline 62, the rotating inner tube 2, the Y-shaped connecting piece 63 and the breathing guide tube 7 in sequence until reaching the oxygen breathing mask; the gas exhaled by the patient during breathing is drained and conveyed through the breathing guide tube 7, the Y-shaped connecting piece 63, the exhalation pipeline 61 and the exhalation connecting port 51 in sequence. When the atomization treatment is needed, one end of the atomization tube 81 is connected with the atomization connecting port 53, the other end of the atomization tube 81 is connected with the atomizer 8, the sealing cover 3 is removed from the atomization connecting tube section 12, the top of the atomizer 8 is connected with the atomization connecting tube section 12 of the three-way outer tube part 1, the atomization treatment program is started, the rotating inner tube 2 is rotated to the through hole 21 to align with the output end of the atomization connecting tube section 12, atomized liquid medicine is converged to the rotating inner tube 2 through the through hole 21 and is led to the Y-shaped connecting part 63 and the breathing leading tube 7 together with gas; when not needing to carry out the fog inhalation, rotatory this rotatory inner tube 2 to through-hole 21 and the output dislocation set of atomizing connecting pipe section 12, close the fog inhalation procedure, demolish atomizer 8 from atomizing connecting pipe section 12 again, and install sealed lid 3 in atomizing connecting pipe section 12 and seal, then accomplish once complete fog inhalation operation, whole operation process need not to demolish and install tee bend outer pipe fitting 1, the convenience of operation has been improved, and guarantee the leakproofness of tee bend outer pipe fitting 1 in breathing the fog inhalation, avoid repeatedly demolising and the operation of installation causes gaseous leakage and infection phenomenon.

In this embodiment, the Y-shaped connector 63 is composed of an expiratory tube connector 631, an inspiratory tube connector 632, and a confluence connector 633, wherein one end of the expiratory tube connector 631 is communicated with an input end of the expiratory tube 61, and the other end of the expiratory tube connector 631 is communicated with the confluence connector 633; one end of the air suction pipe connecting part 632 is connected with the air pipe connecting pipe section 111 and further communicated with the rotating inner pipe 2, and the other end of the air suction pipe connecting part 632 is communicated with the confluence connecting part 633; one end of the confluence connecting part 633 far away from the expiratory tube connecting part 631 is communicated with the respiratory guide tube 7.

In this embodiment, the expiratory tube connecting portion 631 is communicated with the expiratory tube 61, the inspiratory tube connecting portion 632 is connected with the trachea connecting tube section 111 of the closed atomization device 9, and further communicated with the rotary inner tube 2, and the confluence connecting portion 633 is communicated with the expiratory tube connecting portion 631 and the inspiratory tube connecting portion 632 in a confluence manner, so that the structure is compact, the connection stability is high, the normal circulation of the breathing tube 6 can be ensured, and the practicability is high; specifically, the expiratory tube connecting portion 631, the inspiratory tube connecting portion 632, and the confluence connecting portion 633 are integrally formed components.

In this embodiment, the atomizer 8 includes an atomizing cup 82 and a connecting cover 83 communicated with the atomizing cup 82, and the connecting cover 83 is connected with the atomizing connecting pipe segment 12.

The atomizer 8 of the present embodiment is a conventional atomizer 8 in the art, and the atomization principle is well known in the art, and will not be described in detail herein, wherein the atomizing cup 82 is used for carrying the liquid medicine for atomization therapy, and the connection cap 83 is used as a connection component between the atomizing cup 82 and the atomizing connection pipe section 12, so as to achieve a stable connection between the atomizing cup 82 and the atomizing connection pipe section 12.

In this embodiment, the connection cover 83 includes a second cover 831 and a second thread portion 832 disposed at the top of the second cover 831, the second thread portion 832 is annular, and a second internal thread 8321 screwed with the second external thread 122 is disposed on an inner wall of the second thread portion 832.

The improvement point of this embodiment lies in the stable connection of connecting lid 83 and atomizing connecting pipe section 12, second internal thread 8321 through second screw portion 832 inner wall and the second external thread 122 of atomizing connecting pipe section 12 outer wall for connecting lid 83 and atomizing connecting pipe section 12 and realizing stable connection through threaded connection's mode, avoid connecting lid 83 in the atomizing process and taking off easily and drop, and cause atomizing connecting pipe section 12 and even rotatory inner tube 2 to be connected with the external world, cause gaseous leakage or infection phenomenon, the practicality is high.

Or, another scheme does, connect the lid 83 and not set up threaded connection structure, the top of connecting the lid 83 is smooth surface, can directly keep away from one section registrate connection of atomizing connecting pipe section 12 in adapter 4, furthermore, connect the lid 83 can inlay the inner wall of locating adapter 4, or connect the lid 83 cover and locate the outer wall of adapter 4, all can realize the registrate connection, make the closed atomizing device 9 of this embodiment applicable in the atomizer 8 that has the connecting lid 83 of establishing the structure in the cover, also applicable atomizer 8 that has threaded connection structure's connecting lid 83, application range is extensive.

The above-mentioned embodiment is the utility model discloses the implementation of preferred, in addition, the utility model discloses can also realize by other modes, not deviating from the utility model discloses any obvious replacement is all within the protection scope under the prerequisite of design.

Claims (8)

1. A closed atomizing device is characterized in that: the closed atomization device comprises a three-way outer pipe (1) and a rotary inner pipe (2), wherein the three-way outer pipe (1) comprises a main pipe section (11) and an atomization connecting pipe section (12) which is vertically and axially communicated with the main pipe section (11); the rotary inner pipe (2) is embedded in the main pipe section (11), and a through hole (21) communicated with the atomization connecting pipe section (12) is formed in the rotary inner pipe (2); the outer wall of the rotating inner pipe (2) is convexly provided with a rotating switch (22), and the main pipe section (11) is provided with a guide rail hole (13) for the rotating switch (22) to pass through.

2. A closed atomizing device as set forth in claim 1, wherein: the main pipe section (11) is composed of a trachea connecting pipe section (111), a confluence pipe section (112) and a respirator connecting pipe section (113) which are sequentially connected, and the atomization connecting pipe section (12) is communicated with the confluence pipe section (112).

3. A closed atomizing device as set forth in claim 2, wherein: the inner diameter of the trachea connecting pipe section (111) is larger than that of the respirator connecting pipe section (113).

4. A closed atomizing device as set forth in claim 2, wherein: the outer diameter of the rotary inner pipe (2) is equal to the inner diameter of the air pipe connecting pipe section (111).

5. A closed atomizing device as set forth in claim 1, wherein: the closed atomization device further comprises a sealing cover (3) for sealing the atomization connecting pipe section (12), the sealing cover (3) comprises a first cover body (31) and a first thread portion (32) arranged at the bottom of the first cover body (31), a first external thread (321) is arranged on the outer wall of the first thread portion (32), and a first internal thread (121) in threaded connection with the first external thread (321) is arranged on the inner wall of one end, far away from the main pipe section (11), of the atomization connecting pipe section (12).

6. A closed atomizing device as set forth in claim 5, wherein: an accommodating groove (311) is concavely arranged on the outer wall of the first cover body (31), and a hand-screwing block (312) is arranged in the accommodating groove (311).

7. A closed atomizing device as set forth in claim 1, wherein: the outer wall of one end, far away from the main pipe section (11), of the atomization connecting pipe section (12) is provided with a second outer thread (122) in threaded connection with the connecting end of an external atomizer (8).

8. A closed atomizing device as set forth in claim 7, wherein: this closed atomizing device (9) still includes adapter (4), the inner wall of the one end of adapter (4) be equipped with second external screw thread (122) threaded connection's switching internal thread (41), the other end of adapter (4) then with external atomizer (8) registrate be connected.

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