CN212756773U - Multifunctional tracheal catheter sheath cabin - Google Patents

Abstract

The utility model provides a multi-functional endotracheal tube cover cabin, including main cabin, medicine cotton tube and pipe bolt cover, form the holding chamber that is used for holding the sputum and all inhale phlegm mouth, pipe socket and installing port with holding chamber intercommunication in the main cabin, it is relative with pipe socket to inhale phlegm mouth, the installing port is located inhales between phlegm mouth and the pipe socket, form the holding chamber that is used for placing medicine sponge in the medicine cotton tube, the fixed port that communicates with holding chamber is seted up to one end of medicine cotton tube, fixed port department installs the check piece, it includes baffle and the fender net that is connected with the baffle, baffle and fender net all are connected with medicine cotton tube, and the baffle is located one side that the fixed port is closer to pipe socket, form the inlet port on the medicine cotton tube, the one end that medicine cotton tube was equipped with the fixed port is connected with the main cabin; the pipe cap is installed in inhaling phlegm department, and its heat preservation problem of moisturizing that can solve clinical trachea cannula and trachea open's patient's air flue reduces the probability that the sputum scab formed, can also be used for the patient that the sputum volume is more, reduces the contaminated probability of medicine sponge.

Description

Multifunctional tracheal catheter sheath cabin

Technical Field

The utility model relates to the field of medical equipment, concretely relates to multi-functional endotracheal tube cover cabin.

Background

Endotracheal tubes are medical devices that are inserted into the trachea and/or bronchi of a patient to create a temporary artificial respiratory pathway for the patient, particularly for patients who are unable to breathe spontaneously. After the tracheal catheter is used, the patient needs to breathe through the mouth and the nasal cavity, so that the respiratory system is very easy to be infected, and the patient loses the heating and humidifying functions of the mouth and the nasal cavity on gas after the tracheal catheter is left, so that the formation of sputum scab is easily caused.

The utility model discloses a chinese utility model patent with application number 99246892.2 discloses a tracheal cannula air purifier, relates to and has shell, gas pocket, filter chamber, connector, base and breather pipe to constitute. The shell is provided with a plurality of air holes, and the shell is internally provided with an air filter layer to form an air filter cavity. A connecting piece and a base are arranged below the air filtering cavity. When the respiratory system is used, air passes through the air holes in the shell, permeates through the filter layer, is disinfected and humidified by disinfection and humidification materials, passes through the air flow channel at the center of the connector and the base to the air pipe, is connected with the tracheal catheter for the respiration of a patient, and can avoid the direct inhalation of the air into the lung to cause the infection of the respiratory system or the knife edge by containing the disinfection and humidification materials in the filter layer. However, this tracheal cannula air purifier's disinfection and humidifying material are relative with the breather pipe, when being used for the more patient of phlegm volume, disinfection and humidifying material in its filtering layer, the medicine sponge is polluted from breather pipe spun sputum easily promptly, and when the medicine sponge is by patient's expectoration adhesion, if when not changing in time, there is the risk of suffocation, consequently, need frequently to change tracheal cannula air purifier during the use, and the medicine sponge is comparatively expensive, single tracheal cannula air purifier cost is about 66 yuan, frequently change tracheal cannula air purifier and cause the cost-push, medical personnel's work load has also been increased simultaneously.

Disclosure of Invention

The utility model discloses aim at solving one of above-mentioned technical problem at least, provide a multi-functional endotracheal tube cover cabin, its heat preservation problem of moisturizing that can solve clinical trachea cannula and trachea open's patient air flue reduces the probability that phlegm scab formed, can also be used for the more patient of phlegm volume, reduces the contaminated probability of medicine sponge.

In order to achieve the above purpose, the utility model adopts the technical proposal that:

a multifunctional tracheal catheter sheath cabin comprises a main cabin, a medical cotton tube and a catheter bolt cover, wherein an accommodating cavity for accommodating sputum is formed in the main cabin, a sputum suction port, a catheter socket and a mounting port which are communicated with the accommodating cavity are formed in the main cabin, the sputum suction port and the catheter socket are arranged oppositely, the mounting port is located between the sputum suction port and the catheter socket, an accommodating cavity for placing medical sponge is formed in the medical cotton tube, a fixing port communicated with the accommodating cavity is formed in one end of the medical cotton tube, a lattice piece is arranged at the fixing port of the medical cotton tube and comprises a baffle plate and a blocking net connected with the baffle plate, the baffle plate and the blocking net are connected with the medical cotton tube, the baffle plate is located on one side, close to the catheter socket, of the fixing port, and an air inlet hole for communicating the accommodating cavity with the outside is formed in the medical cotton tube, one end of the medicine cotton tube, which is provided with the fixing port, is connected with the main cabin and is communicated with the accommodating cavity after passing through the mesh of the blocking net and the mounting port; the catheter bolt cover is arranged at the sputum suction port.

Furthermore, the multifunctional tracheal catheter sheath cabin further comprises an oxygen supply pipe, a water supply pipe is connected to the oxygen supply pipe, the joint of the water supply pipe and the oxygen supply pipe is located between the two ends of the oxygen supply pipe, and the free end of the oxygen supply pipe and the free end of the water supply pipe are detachably connected with a shielding cover.

Further, the medicine cotton tube is detachably connected with the main cabin.

Further, one end of the medicine cotton tube, provided with the fixing port, is connected with a sleeve, and the sleeve is in threaded connection with the mounting port of the main cabin, so that the medicine cotton tube and the main cabin are detachably connected together.

Furthermore, the main cabin is provided with two mounting ports, the two mounting ports are arranged oppositely, the number of the medicine cotton tubes is two, and the two medicine cotton tubes are respectively connected to the two mounting ports.

Furthermore, one end of the medicine cotton tube, which is far away from the baffle plate, is provided with a medicine cotton taking and placing opening in a run-through manner, and the medicine cotton taking and placing opening is detachably provided with a medicine cotton cover.

Furthermore, the medicine sponge cover is also provided with an air inlet hole in a through way.

Furthermore, a net-shaped area is arranged on the pipe wall of one end, far away from the fixing port, of the medicine cotton pipe, and meshes in the net-shaped area form the air inlet hole.

Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has:

1. above-mentioned multi-functional endotracheal tube cover cabin, it has increased the main cabin, and medicine cotton tube is located the side of pipe socket, medicine cotton tube is provided with check towards the one end in main cabin and keeps off the piece, can store the sputum through main cabin, the baffle that keeps off the piece through the check can block sputum and medicine sponge, the fender net that check kept off can allow by the air admission main cabin after the medicine sponge filters, and because keep off the upper portion that the net is located the holding chamber, can reduce the probability that the sputum blockked up the fender net, make from endotracheal tube spun sputum be difficult for polluting the medicine sponge in the medicine cotton tube, need not frequent change during the use, be favorable to reduce cost and medical personnel's work load. Meanwhile, the medical sponge has the heat preservation effect on the main cabin, so that the effects of disinfection, humidification and heat preservation can be achieved when external gas enters the main cabin through the medical sponge, and the probability of formation of sputum scabs is reduced.

2. The multifunctional tracheal catheter suite also comprises an oxygen supply pipe, and when the multifunctional tracheal catheter suite is used for a patient suffering from respiratory failure, the multifunctional tracheal catheter suite can be connected with an oxygen inhalation device such as a respirator through the oxygen supply pipe; the oxygen supply pipe is connected with a water supply pipe, and when the oxygen supply pipe is used, a small amount of water can be sprayed into the oxygen supply pipe through the water supply pipe, so that the oxygen humidification in the oxygen supply pipe is realized, the inhaled gas can achieve the humidification effect, the air passage drying is reduced, and the formation of sputum scab is reduced.

3. Above-mentioned multi-functional endotracheal tube cover cabin still includes the oxygen supply pipe, and medicine cotton tube can dismantle with the main cabin and be connected, and after the medicine sponge is polluted, removable medicine cotton tube can, need not to change whole multi-functional endotracheal tube cover cabin, can reduce cost.

Drawings

Fig. 1 is a schematic perspective view of a multifunctional tracheal catheter sheath capsule according to a first embodiment of the present invention, wherein the oxygen supply tube and the water supply tube are not provided with a shielding cover.

Fig. 2 is a schematic sectional view of the multifunctional endotracheal tube cover cabin shown in fig. 1 along the line a-a.

Fig. 3 is a schematic sectional view of the multifunctional endotracheal tube cover cabin shown in fig. 1 along the line B-B, wherein the oxygen supply tube and the water supply tube are both provided with shielding covers.

Fig. 4 is a schematic structural view of the multifunctional endotracheal tube housing shown in fig. 3 after an endotracheal tube is inserted.

Fig. 5 is a schematic structural view of the multifunctional endotracheal tube cover cabin in the second embodiment of the present invention after the endotracheal tube is inserted.

Description of the main elements

100. A multifunctional tracheal catheter sheath cabin; 2. a main cabin; 21. an accommodating cavity; 22. a sputum suction port; 23. a catheter hub; 24. an installation port; 3. a medicated cotton tube; 31. an accommodating chamber; 32. an air inlet; 33. a fixed port; 34. taking and placing the medicine cotton; 35. a shelf; 351. A baffle plate; 353. blocking the net; 36. a sleeve; 37. covering with a medicinal sponge; 4. a catheter plug cover; 41. a ring-shaped fixing portion; 43. an elastic sheet; 5. an oxygen supply tube; 6. a water supply pipe; 7. a shielding cover; 200. a medicinal sponge; 300. an endotracheal tube.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, a first embodiment of the present invention provides a multifunctional tracheal catheter sheath capsule 100, which includes a main capsule 2, a cotton drug tube 3 and a catheter cap 4.

Referring also to fig. 2, in the present embodiment, the main compartment 2 is substantially tubular. An accommodating cavity 21 for accommodating sputum is formed in the main chamber 2, and the main chamber 2 preferably has a volume of 100 ml. The main cabin 2 is provided with a sputum suction port 22, a catheter insertion port 23 and a mounting port 24 which are communicated with the accommodating cavity 21, wherein the sputum suction port 22 and the catheter insertion port 23 are arranged oppositely, and the mounting port 24 is positioned between the sputum suction port 22 and the catheter insertion port 23. In the present embodiment, two installation openings 24 are formed in the main cabin 2, and the two installation openings 24 are disposed opposite to each other and located at two opposite ends of the main cabin 2. The sputum suction port 22 and the catheter insertion port 23 are respectively arranged on the side wall of the main chamber 2, wherein the sputum suction port 22 is used for inserting a sputum suction tube (not shown), and the catheter insertion port 23 is used for inserting an endotracheal tube 300 (fig. 4).

The medicine cotton tube 3 is connected with the main chamber 2, in the embodiment, the medicine cotton tube 3 is approximately tubular, the number of the medicine cotton tubes 3 is two, and the two medicine cotton tubes 3 are respectively connected with the two mounting openings 24. A receiving chamber 31 for placing the medical sponge 200 is formed in each of the medicine cotton tubes 3. An air inlet hole 32 for communicating the accommodating cavity 31 with the outside is formed on the medicine cotton tube 3, a fixing port 33 is formed at one end of the medicine cotton tube 3, and the fixing port 33 is communicated with the accommodating cavity 31. A grid member 35 is provided at the fixing port 33 of the applicator tube 3. Referring to fig. 3, the barrier 35 includes a baffle 351 and a barrier 353 connected to the baffle 351, the baffle 351 and the barrier 353 are both connected to the applicator tube 3, and the baffle 351 is located at a side of the fixing opening 33 closer to the catheter insertion opening 23. One end of the cotton drug tube 3 provided with the fixing port 33 is connected with the main chamber 2 and is communicated with the accommodating cavity 21 through the mesh of the blocking net 353 and the mounting port 24. In this embodiment, the medicine cotton tube 3 is detachably connected to the main chamber 2, specifically: a sleeve 36 is connected to one end of the cotton drug tube 3 provided with the fixing port 33, an internal thread (not shown) is formed in the sleeve 36, an external thread (not shown) is arranged on the outer wall of the opposite ends of the main chamber 2, the sleeve 36 is sleeved outside the main chamber 2, and the external thread is in threaded connection with the internal thread, so that the cotton drug tube 3 and the main chamber 2 are detachably connected together. It is understood that in other embodiments, the sleeve 36 may be provided with external threads, and the mounting opening 24 of the main compartment 2 is correspondingly provided with internal threads, and the sleeve 36 is inserted into the mounting opening 24 of the main compartment 2 and is screwed with the external threads and the internal threads to detachably connect the medicine cotton tube 3 and the main compartment 2 together. It is understood that the manner of detachably connecting the medicine cotton tube 3 with the main chamber 2 is not limited to the present embodiment, for example, the medicine cotton tube 3 may be detachably connected with the mounting port 24 of the main chamber 2 by means of plugging. In this embodiment, a mesh area (not labeled) is provided on the wall of the medicine cotton tube 3 away from the fixing opening 33, and the mesh on the mesh area forms the air inlet hole 32.

The catheter cap 4 is installed at the sputum suction port 22, and the structure of the catheter cap 4 belongs to the prior art and comprises an annular fixing portion 41 made of rubber material and a plurality of elastic pieces 43 connected to the inner wall of the annular fixing portion 41. The elastic pieces 43 are in a folded state in an initial state, at the moment, the elastic pieces 43 are approximately positioned in the same plane, and two adjacent elastic pieces 43 can be contacted with each other to prevent outside air from entering the main cabin 2 from the sputum suction port 22; when the excessive sputum in the main chamber 2 is found, one end of the sputum suction tube is inserted into the sputum suction port 22 from the catheter bolt cover 4, and at this time, the elastic pieces 43 are elastically deformed by the pressure of the sputum suction tube to bend towards the inside of the main chamber 2 so as to allow one end of the sputum suction tube to enter the main chamber 2, thereby realizing the sputum suction.

Referring to fig. 1 and 3 again, in the present embodiment, the multifunctional tracheal catheter cannula 100 further includes an oxygen supply tube 5, a water supply tube 6 is connected to the oxygen supply tube 5, a connection point between the water supply tube 6 and the oxygen supply tube 5 is located between two ends of the oxygen supply tube 5, and a shielding cover 7 is detachably connected to both a free end of the oxygen supply tube 5 and a free end of the water supply tube 6. The detachable connection of the blocking cap 7 to the oxygen supply tube 5 and the water supply tube 6 is prior art, for example, the blocking cap 7 may be directly fitted over the free end of the oxygen supply tube 5 or the free end of the water supply tube 6.

Referring to fig. 4, in use, one end of the tracheal tube 300 is inserted into the tube insertion opening 23 of the main chamber 2, and the outside air enters the cotton drug tube 3 through the air inlet hole 32, is sterilized and humidified by the medical sponge 200, enters the main chamber 2, and then enters the human body along the tracheal tube 300. When the patient expectorates, the sputum is sprayed into the main chamber 2 along the cannula and falls into the bottom of the accommodating cavity 21 under the action of self gravity. Because the baffle 351 of check spare 35 is located the bottom of holding chamber 21, consequently, can block the contact of sputum with medicine sponge 200 through baffle 351, the air that keeps off net 353 of check spare 35 can allow to be disinfected, the humidification by medicine sponge 200 gets into main cabin 2, because keep off net 353 is located the upper portion of holding chamber 21, can reduce the probability that the sputum blocks up and keeps off net 353 for the air can get into endotracheal tube 300 smoothly. The gas with certain temperature that the patient exhales gets into main cabin 2, can keep warm main cabin 2 through medicine sponge 200, reaches the heat preservation effect.

When oxygen absorption is needed, firstly, the shielding cover 7 on the water supply pipe 6 is opened, a small amount of water is introduced into the oxygen supply pipe 5 through the water supply pipe 6, the added water can wet part of the oxygen supply pipe 5 between the water supply pipe 6 and the main cabin 2, and then the shielding cover 7 is covered on the free tail end of the water supply pipe 6; then, the oxygen supplying pipe 5 is opened to supply oxygen to the main chamber 2 through the oxygen supplying pipe 5 by opening the shielding cover 7. When the gas in the oxygen supply pipe 5 passes through the oxygen supply pipe 5 between the water supply pipe 6 and the main chamber 2, the moisture in the oxygen supply pipe 5 can be brought up, and the effect of humidifying the gas is achieved.

In addition, if the medical sponge 200 fails, the medicine cotton tube 3 can be detached from the main chamber 2, and the corresponding medicine cotton tube 3 can be replaced without replacing the whole tracheal catheter sheath chamber, so that the cost can be reduced. Because the cotton medicine tube 3 is detachably connected with the main chamber 2, the main chamber 2 is convenient to clean, so that the main chamber 2 can be reused after being sterilized.

In the present embodiment, the main chamber 2, the medical cotton tube 3, the oxygen supply tube 5, the oxygen inhalation tube 6, and the shielding cover 7 are made of medical plastics, so as to further reduce the cost of the multifunctional endotracheal tube housing chamber 100. Preferably, main cabin 2 adopts transparent plastics to make, and the medical personnel of being convenient for observe the condition of sputum in main cabin 2 to in time inhale the phlegm operation.

Referring to fig. 5, a second embodiment of the present invention provides a multifunctional tracheal catheter sheath capsule, which has substantially the same structure as the multifunctional tracheal catheter sheath capsule 100 of the first embodiment, and comprises a main capsule 2, a medical cotton tube 3 and a catheter cap 4, wherein the medical cotton tube 3 is connected to the main capsule 2, and a containing cavity 31 for placing a medical sponge 200 is formed in the medical cotton tube 3. An air inlet hole 32 for communicating the accommodating cavity 31 with the outside is formed in the medicine cotton tube 3, a fixing port 33 is formed in one end of the medicine cotton tube 3, a grid stopper 35 is arranged at the fixing port 33 of the medicine cotton tube 3, one end of the medicine cotton tube 3, provided with the fixing port 33, is detachably connected with the main cabin 2 and is communicated with the accommodating cavity 21 after being blocked by meshes of the grid stopper 35 and the mounting port 24. The difference lies in that: in the present embodiment, the other end of the cotton medicine tube 3 is provided with a cotton medicine taking and placing opening 34, and the cotton medicine taking and placing opening 34 is opposite to the fixing opening 33 and is communicated with the accommodating cavity 31. The medicine cotton taking and placing opening 34 is detachably provided with a medicine cotton cover 37, and the detachable connection between the medicine cotton cover 37 and the medicine cotton tube 3 belongs to the prior art, for example, the medicine cotton cover 37 can be directly sleeved at the medicine cotton taking and placing opening 34 of the medicine cotton tube 3 or can be detachably connected with the medicine cotton tube 3 in a threaded connection mode. In the present embodiment, the medicine sponge cover 37 is also provided with an air inlet 32, specifically: the pipe wall of the end of the cotton medicine pipe 3 far away from the fixing port 33 and the cotton medicine cover 37 are both provided with a reticular area, and the meshes on the reticular area form the air inlet hole 32. After the use, the medicine cotton cover 37 can be opened, the medicine sponge 200 of the medicine cotton tube 3 can be taken out, the rest parts can be reused after being sterilized, the medicine cotton tube 3 does not need to be replaced completely, the medicine cotton tube 3 can be reused, and the cost can be further reduced.

The multifunctional tracheal catheter suite 100 has the functions of heat preservation and moisture preservation, has the function of sputum blocking, and can reduce the probability that the sputum pollutes the medical sponge 200 along with the cough of a patient; the device is also provided with the functions of flushing, oxygen inhalation and sputum aspiration, and because the joint of the water supply pipe 6 and the oxygen supply pipe 5 is positioned between the two ends of the oxygen supply pipe 5, the device can humidify the inhaled gas, reduce the dryness of the air passage and reduce the formation of sputum crusts; the sputum can be stored through the main cabin 2 to reduce the pollution of the sputum of the patient to the air. In addition, the multifunctional tracheal catheter sheath cabin 100 is made of medical plastics, so that the cost is low, and the clinical popularization and application are facilitated.

It will be appreciated that the applicator tube 3 may also be fixedly attached to the main chamber 2 by means of an adhesive or the like. The multifunctional tracheal catheter sheath capsule 100 can also be made into disposable articles, and when the medical sponge 200 is polluted, the multifunctional tracheal catheter sheath capsule 100 can be directly replaced.

The above description is for the detailed description of the preferred possible embodiments of the present invention, but the embodiments are not intended to limit the scope of the present invention, and all equivalent changes or modifications accomplished under the technical spirit suggested by the present invention should fall within the scope of the present invention.

Claims (8)

1. A multi-functional endotracheal tube cover cabin (100) characterized by: comprises a main cabin (2), a medicine cotton tube (3) and a catheter bolt cover (4), wherein an accommodating cavity (21) for accommodating sputum is formed in the main cabin (2), a sputum suction port (22), a catheter socket (23) and a mounting port (24) which are communicated with the accommodating cavity (21) are formed in the main cabin (2), the sputum suction port (22) and the catheter socket (23) are oppositely arranged, the mounting port (24) is positioned between the sputum suction port (22) and the catheter socket (23), an accommodating cavity (31) for placing medicine sponge (200) is formed in the medicine cotton tube (3), a fixing port (33) communicated with the accommodating cavity (31) is formed in one end of the medicine cotton tube (3), a grid stopper (35) is arranged at the fixing port (33) of the medicine cotton tube (3), the grid stopper (35) comprises a baffle plate (351) and a baffle net (353) connected with the baffle plate (351), the baffle (351) and the blocking net (353) are both connected with the medicine cotton tube (3), the baffle (351) is positioned on one side of the fixed opening (33) close to the guide pipe socket (23), an air inlet hole (32) for communicating the accommodating cavity (31) with the outside is formed in the medicine cotton tube (3), one end, provided with the fixed opening (33), of the medicine cotton tube (3) is connected with the main cabin (2), and is communicated with the accommodating cavity (21) after passing through the meshes of the blocking net (353) and the mounting opening (24); the catheter bolt cover (4) is arranged at the sputum suction port (22).

2. The multifunctional endotracheal tube cover capsule (100) according to claim 1, characterized in that: multifunctional tracheal catheter suite (100) still includes oxygen supply pipe (5), be connected with delivery pipe (6) on oxygen supply pipe (5), delivery pipe (6) with the junction of oxygen supply pipe (5) is located between the both ends of oxygen supply pipe (5), the free end of oxygen supply pipe (5) with the equal detachably of the free end of delivery pipe (6) is connected with and shelters from lid (7).

3. The multifunctional endotracheal tube cover capsule (100) according to claim 1, characterized in that: the medicine cotton tube (3) is detachably connected with the main cabin (2).

4. The multifunctional endotracheal tube cover capsule (100) according to claim 3, characterized in that: a sleeve (36) is connected to one end, provided with the fixing port (33), of the medicine cotton tube (3), and the sleeve (36) is in threaded connection with the mounting port (24) of the main cabin (2), so that the medicine cotton tube (3) and the main cabin (2) are detachably connected together.

5. The multifunctional endotracheal tube cover capsule (100) according to claim 1, characterized in that: the main cabin (2) is provided with two mounting ports (24), the two mounting ports (24) are arranged oppositely, the number of the medicine cotton tubes (3) is two, and the two medicine cotton tubes (3) are respectively connected to the two mounting ports (24).

6. The multifunctional endotracheal tube cover capsule (100) according to claim 1, characterized in that: one end of the medicine cotton pipe (3) far away from the baffle (351) is provided with a medicine cotton taking and placing opening (34) in a penetrating mode, and a medicine cotton cover (37) is detachably arranged at the medicine cotton taking and placing opening (34).

7. The multifunctional endotracheal tube cover capsule (100) according to claim 6, characterized in that: the medicine cotton cover (37) is also provided with an air inlet (32) in a through way.

8. The multifunctional endotracheal tube cover capsule (100) according to claim 1, characterized in that: the pipe wall of the end, far away from the fixing opening (33), of the medicine cotton pipe (3) is provided with a net-shaped area, and meshes in the net-shaped area form the air inlet hole (32).

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