Intelligent flushing and sucking variable-diameter sputum suction tube device

Abstract

The invention discloses a flushing device, belongs to the technical field of medical instruments, and particularly relates to an intelligent flushing and sucking variable-diameter sputum suction tube device which comprises an outer sputum suction tube and a flushing tube, the outer sputum suction tube is designed to be in a conical shape with a small head end and a large rear end so as to adapt to respiratory tracts of different parts, and the front end of the flushing tube is slightly shorter than the outer sputum suction tube. The sputum aspirator is arranged in the sputum suction tube and connected with the sputum suction outer tube through the plug, the plug is provided with a plurality of plug spray holes, and the spray holes correspond to the spray holes in the sputum suction outer tube one to one, so that accurate flushing and suction are achieved. By means of the variable-diameter design and the all-directional suction function, the device can adapt to respiratory tracts of different parts, mucus of the end bronchial tube is effectively removed, meanwhile, due to the multiple working modes and the lumen separation design, operation flexibility and efficiency are improved, discomfort to a patient is reduced, and the device is simple in structure, safe, stable, reliable and suitable for popularization and application. According to the invention, the characteristics of all-around, rapid and tip directional flushing of the flushing tube and the suction tube are realized.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a respiratory tract flushing tube cleaning device capable of simultaneously flushing and aspirating, and specifically to an intelligent flushing and aspiration variable-diameter sputum suction tube device. Background Art

[0002] Suction tubes are generally used for patients who cannot expectorate on their own. Suction tubes are an important tool to assist in expectoration. Early suction tubes were simple in design, mainly using the markings and scales on the tubes to help doctors determine the location and depth of sputum accumulation. With the development of technology, the design of suction tubes has increasingly focused on improving the thoroughness of suction and reducing irritation to patients.

[0003] Ordinary suction tubes may have the following disadvantages during use: 1. Airway mucosal damage: If the diameter of the suction tube is too large, it may cause damage to the respiratory mucosa. 2. The product structure and operating performance of ordinary suction tubes make it difficult to remove inflammatory secretions or foreign matter from the respiratory tract terminals; 3. Ordinary suction tubes are difficult to completely remove terminal bronchial mucus. 4. Thick or dry sputum adhering to the bronchial mucosa is difficult to clean or suck out quickly, which seriously affects the ventilation function and even endangers the patient's life. Ordinary suction tubes have certain limitations when cleaning terminal bronchial mucosa, which are mainly manifested in the following aspects:

[0004] 1. Limited clearing effect: Traditional suction tubes are only effective in clearing secretions above the carina, but have poor clearing effects on terminal secretions in the alveoli and bronchi.

[0005] 2. Stimulation of airway mucosa: Since the suction tube may touch the bronchial bifurcation during insertion, it may stimulate the sympathetic nerve excitatory receptors on the airway, increase sympathetic nerve activity, cause peripheral vasoconstriction and increase blood pressure, and lead to significant changes in hemodynamics. Increased risk of infection: Routine sputum drainage or sputum suction through endotracheal intubation can easily contaminate upper respiratory tract secretions and affect the characteristics of lower respiratory tract flora. It is difficult to obtain accurate results for sputum examination, which may increase the risk of lung infection.

[0006] 3. Reflux of secretions: Since the insertion length of the suction tube exceeds the length of the tracheotomy tube, it directly sucks into the patient's trachea, which may cause the body to have an emergency response, reduce the oxygen partial pressure in the alveoli, and reduce the blood oxygen saturation, leading to reflux of secretions.

[0007] Therefore, ordinary suction tubes have certain deficiencies in completely clearing terminal bronchial mucus, and an innovative suction tube is urgently needed in clinical practice to improve the effect and safety of suction. Summary of the invention

[0008] Purpose of the invention: To provide an intelligent suction and sputum suction tube device with variable diameter to solve the above-mentioned problems.

[0009] Technical solution: An intelligent flushing and suction variable diameter sputum suction tube device, comprising: a sputum suction outer tube (4), a flushing tube (6), a handle (19), a flushing hose (12), a suction hose (11), a flushing valve (14) and a suction valve (13);

[0010] In a further embodiment, the flushing tube (6) is located inside the sputum suction outer tube (4);

[0011] The flushing hose (12), the suction hose (11), the flushing valve (14) and the suction valve (13) are installed in the handle (19);

[0012] The flushing pipe (6) and the flushing hose (12) are connected via a flushing pipe connecting pipe (9);

[0013] The sputum suction outer tube (4) is in the shape of a cone with a small head end and a large rear end, and has sputum suction holes (5) evenly distributed on the outer circumference at 360 degrees; the front end length of the flushing tube (6) is shorter than the length of the sputum suction outer tube (4), and the front ends are connected via a plug (1), and the plug (1) is provided with a plurality of plug spray holes (2); the head of the sputum suction outer tube (4) has sputum suction outer tube spray holes (3) evenly distributed, and the plug spray holes (2) and the sputum suction outer tube spray holes (3) correspond to each other one by one.

[0014] In a further embodiment, the suction outer tube (4) and the flushing tube (6) are controlled by the suction valve (13) and the flushing valve (14) respectively, and their working modes can be divided into four modes: flushing first and then suction, suction first and then flushing, flushing and suction at the same time, and controlling the injection and suction time to make the water flushed into the alveoli lose pressure instantly and quickly enter the suction tube to achieve the cleaning of the mucus in the alveoli.

[0015] In a further embodiment, the suction outer tube (4) and the flushing tube (6) are separated by the suction cavity (8), respectively, and the flushing tube (6) and the suction outer tube (4) belong to independent cavities, respectively, to achieve a flushing and suction phase separation mode.

[0016] In a further embodiment, the handle (19) is composed of an upper cover (31) and a lower cover (10); the suction valve (13) and the flushing valve (14) are respectively fixed to the handle upper cover (31) and the lower cover (10).

[0017] In a further embodiment, the head of the handle (19) is provided with a sheath (7), and the sheath (7) is sleeved on the outside of the sputum suction outer tube (4) and the flushing tube (6).

[0018] In a further embodiment, the sputum suction chamber (8) is arranged in the handle, and the sputum suction chamber (8) is located between the sputum suction outer tube (4) and the flushing tube (6), and is used to separate the sputum suction outer tube (4) and the flushing tube (6);

[0019] The sputum suction chamber (8) is connected to the suction valve (13) via a suction hose (11).

[0020] In a further embodiment, the suction valve (13) and the flushing valve (14) are both provided with a spring (15) and an O-ring (16), and the spring (15) and the O-ring (16) are used to ensure the sealing of the suction valve (13) and the flushing valve (14).

[0021] In a further embodiment, the upper cover (31) of the handle (19) has an upper cover suction tube hole (30), an upper cover tube cavity groove (33) and an upper cover valve body hole (32) for connecting the liquid suction tube (21), the sputum suction outer tube (4) and the suction valve (13).

[0022] In a further embodiment, the heads of the flushing valve (14) and the suction valve (13) are respectively provided with a flushing tube (20) and a suction tube (21) connected via a valve body joint (18), and the heads of the flushing tube (20) and the suction tube (21) are provided with a flushing joint (23) and a suction joint (22).

[0023] In a further embodiment, it further comprises: a water source (29), a control valve (35), a host (34), a sputum recovery device (28), a sputum recovery device suction tube (26) and a water source flushing tube (27);

[0024] The water source (29) is connected to the control valve (35) through a pipeline; one end of the water source flushing pipe (27) is connected to the flushing joint (23) through a water source flushing pipe joint (25), and the other end is connected to the control valve (35); one end of the sputum recovery device suction pipe (26) is connected to the suction joint (22) through a sputum recovery device suction pipe joint (24), and the other end is connected to the sputum recovery device (28); the host is respectively connected to the sputum recovery device (28) and the control valve (35) through pipelines.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. The intelligent flushing and suction variable diameter sputum suction tube device of the present invention can provide a more effective and comfortable sputum suction experience through its unique design. Its variable diameter design and all-round suction function enable the device to adapt to different parts of the respiratory tract and effectively remove mucus from the terminal bronchus. At the same time, its multiple working modes and lumen separation design improve the flexibility and efficiency of operation and reduce the discomfort to patients.

[0027] 2. The present invention has a simple structure and is safe, stable and reliable. The present invention realizes the all-round, rapid and distal directional flushing characteristics of the flushing tube and the suction tube.

[0028] 3. The present invention can also control the water injection and suction time to make the water flushed into the alveoli lose pressure instantly and quickly enter the suction tube, thereby cleaning the mucus in the alveoli and saving the lives of patients with severe pneumonia. This solves the current problem of being unable to effectively clean the alveolar mucus. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0030] Figure 2 It is a partial schematic diagram of the present invention.

[0031] Figure 3 It is a schematic diagram of the head end plug connection structure of the present invention.

[0032] Figure 4 It is the overall structural diagram of the head end of the present invention.

[0033] Figure 5 It is a schematic diagram of the internal cross-sectional structure of the head end of the present invention.

[0034] Figure 6 It is a schematic diagram of the internal structure of the sputum suction chamber of the present invention.

[0035] Figure 7 It is a schematic diagram of the control valve body structure of the present invention.

[0036] Figure 8 This is a schematic diagram of the upper cover structure of the present invention Figure 1

[0037] Fig. 9 This is a schematic diagram of the upper cover structure of the present invention Figure 2 .

[0038] Figure numerals: plug (1), plug spray hole (2), sputum suction outer tube spray hole (3), sputum suction outer tube (4), sputum suction hole (5), flushing tube (6), sheath (7), sputum suction chamber (8), flushing tube connecting pipe (9), lower cover (10), suction hose (11), flushing hose (12), suction valve (13), flushing valve (14), spring (15), O-ring (16), valve body joint (18), valve body hole (17), handle (19), flushing tube (20), suction tube (21), suction joint (22), flushing joint (23), sputum recovery device suction tube joint (24), water source flushing tube joint (25), sputum recovery device suction tube (26), water source flushing tube (27), sputum recovery device (28), water source (29), upper cover suction tube hole (30), upper cover (31), upper cover valve body hole (32), upper cover tube cavity groove (33), main unit (34), control valve (35). DETAILED DESCRIPTION

[0039] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] An intelligent flushing and suction variable diameter sputum suction tube device comprises: a sputum suction outer tube (4), a flushing tube (6), a handle (19), a flushing hose (12), a suction hose (11), a flushing valve (14) and a suction valve (13);

[0041] In one embodiment, Figures 1 to 9 As shown, the flushing tube (6) is located inside the sputum suction outer tube (4);

[0042] The flushing hose (12), the suction hose (11), the flushing valve (14) and the suction valve (13) are installed in the handle (19);

[0043] The flushing pipe (6) and the flushing hose (12) are connected via a flushing pipe connecting pipe (9);

[0044] The sputum suction outer tube (4) is in the shape of a cone with a small head end and a large rear end, and has sputum suction holes (5) evenly distributed on the outer circumference at 360 degrees; the front end length of the flushing tube (6) is shorter than the length of the sputum suction outer tube (4), and the front ends are connected via a plug (1), and the plug (1) is provided with a plurality of plug spray holes (2); the head of the sputum suction outer tube (4) has sputum suction outer tube spray holes (3) evenly distributed, and the plug spray holes (2) and the sputum suction outer tube spray holes (3) correspond to each other one by one.

[0045] In one embodiment, Figures 1 to 9 As shown, the sputum suction outer tube (4) and the flushing tube (6) are controlled by the suction valve (13) and the flushing valve (14) respectively, and the working mode thereof can be divided into four modes: flushing first and then suction, suction first and then flushing, flushing and suctioning at the same time, and controlling the water injection and suction time to make the water flushed into the alveoli lose pressure instantly and quickly enter the suction tube to achieve the cleaning of the mucus in the alveoli.

[0046] In one embodiment, Figures 1 to 9 As shown, the sputum suction outer tube (4) and the flushing tube (6) are separated by the sputum suction cavity (8), and the flushing tube (6) and the sputum suction outer tube (4) belong to independent cavities, respectively, so as to achieve a flushing and suction phase separation mode.

[0047] In one embodiment, Figures 1 to 9 As shown, the handle (19) is composed of an upper cover (31) and a lower cover (10); the suction valve (13) and the flushing valve (14) are respectively fixed on the handle upper cover (31) and the lower cover (10).

[0048] In one embodiment, Figures 1 to 9 As shown, the head of the handle (19) is provided with a sheath (7), and the sheath (7) is sleeved on the outside of the sputum suction outer tube (4) and the flushing tube (6).

[0049] In one embodiment, Figures 1 to 9 As shown, the sputum suction chamber (8) is located between the sputum suction outer tube (4) and the flushing tube (6), and is used to separate the sputum suction outer tube (4) and the flushing tube (6);

[0050] The sputum suction chamber (8) is connected to the suction valve (13) via a suction hose (11).

[0051] In one embodiment, Figures 1 to 9 As shown, the suction valve (13) and the flushing valve (14) are both provided with a valve body hole (17), a spring (15) and an O-ring (16), and the spring (15) and the O-ring (16) are used to ensure the sealing of the suction valve (13) and the flushing valve (14).

[0052] In one embodiment, Figures 1 to 9 As shown, the heads of the flushing valve (14) and the suction valve (13) are respectively provided with a flushing tube (20) and a suction tube (21) connected via a valve body joint (18), and the heads of the flushing tube (20) and the suction tube (21) are provided with a flushing joint (23) and a suction joint (22).

[0053] In one embodiment, Figures 1 to 9As shown, the upper cover (31) of the handle (19) has an upper cover suction tube hole (30), an upper cover tube cavity groove (33) and an upper cover valve body hole (32), which are used to connect the liquid suction tube (21), the sputum suction outer tube (4) and the suction valve (13).

[0054] In one embodiment, Figures 1 to 9 As shown, the present invention further comprises: a water source (29), a control valve (35), a host (34), a sputum recovery device (28), a sputum recovery device suction tube (26) and a water source flushing tube (27);

[0055] The sputum recovery device (28) is used to collect and process the sputum sucked out, the water source (29) and the water source flushing pipe (27) are used to provide the flushing water source, and the host (30) and the control valve (31) are used to control the operation mode of sputum suction and flushing;

[0056] The water source (29) is connected to the control valve (35) through a pipeline; one end of the water source flushing pipe (27) is connected to the flushing joint (23) through a water source flushing pipe joint (25), and the other end is connected to the control valve (35); one end of the sputum recovery device suction pipe (26) is connected to the suction joint (22) through a sputum recovery device suction pipe joint (24), and the other end is connected to the sputum recovery device (28); the host is respectively connected to the sputum recovery device (28) and the control valve (35) through pipelines.

[0057] The purpose of the present invention is to design an innovative intelligent flushing and suction variable diameter sputum suction tube device to address the problems that the existing sputum suction tube has a limited flushing range and the flushing tube can only spray directly but not spray in a circular manner to flush the fine terminal bronchial sputum at a fixed point or in a directional manner. The following is a specific implementation method of the intelligent flushing and suction variable diameter sputum suction tube device.

[0058] Embodiment 1:

[0059] An intelligent flushing and suction variable diameter sputum suction tube device, the present invention provides an intelligent flushing and suction variable diameter sputum suction tube device, comprising a sputum suction outer tube (4) and a flushing tube (6). The sputum suction outer tube (4) is designed to be a cone with a small head end and a large rear end to adapt to the respiratory tract in different parts. The front end of the flushing tube (6) is slightly shorter than the sputum suction outer tube (4), and is connected to the sputum suction outer tube (4) through a plug (1). The plug (1) is provided with a plurality of plug spray holes (2), and these spray holes correspond one-to-one with the spray holes (3) on the sputum suction outer tube (4) to achieve accurate flushing and suction.

[0060] Embodiment 2:

[0061] The present invention can realize four different operation modes to meet different clinical needs:

[0062] Mode ①: rinse first, then suction.

[0063] Mode ②: Suction first, then rinse.

[0064] Mode ③: Simultaneous flushing and suction, suitable for situations where mucus needs to be removed quickly.

[0065] Mode ④: By precisely controlling the injection and suction time, the water flushed into the alveoli loses pressure instantly and quickly enters the suction tube, thereby cleaning the mucus in the alveoli. This is especially suitable for patients with severe pneumonia and can save lives.

[0066] Lumen separation: the suction tube (4) and the flushing tube (6) are separated by the suction lumen (8), so that the flushing tube (6) and the suction tube (4) each belong to an independent lumen, realizing a phase separation mode of flushing and suction, improving the flexibility and efficiency of the operation, and avoiding the risk of cross infection of traditional suction tubes.

[0067] Valve control: The suction valve (13) and the flushing valve (14) are respectively fixed on the upper cover (31) and the lower cover (12) of the handle, so that the operator can adjust the valves as needed to control the flushing and suction processes.

[0068] All-round suction: The suction holes (5) are evenly distributed 360 degrees around the outer circumference of the suction tube (4), which can achieve 360-degree all-round suction and effectively remove mucus and secretions in the respiratory tract.

[0069] Embodiment 3:

[0070] The present invention mainly includes the following components:

[0071] The plug (1) is connected to the front end of the flushing tube (6) and the sputum suction outer tube (4). The plug spray hole (2): located on the plug (1), used for spraying water for flushing. The sputum suction outer tube (4) is conical in shape, with a small head end and a large back end, and sputum suction holes (5) are evenly distributed on the periphery. Sputum suction holes (5): distributed on the periphery of the sputum suction outer tube (4), used for all-round suction of sputum. The front end of the flushing tube (6) is slightly shorter than the sputum suction outer tube (4), and is used for conveying flushing liquid. The suction valve (13) and the flushing valve (14) respectively control the operation of the sputum suction outer tube (4) and the flushing tube (6).

[0072] Embodiment 4:

[0073] The present invention can realize four different working modes:

[0074] Mode 1: Flush first to loosen the sputum, then suction.

[0075] Mode 2: Aspirate the sputum first, then flush to remove the residue.

[0076] Mode 3: Flushing and suction at the same time, suitable for emergency situations.

[0077] Mode 4: First, flush water for a period of time, and then precisely control the injection and suction time to make the water flushed into the alveoli lose pressure instantly and quickly enter the suction tube to clean the mucus in the alveoli.

[0078] Embodiment 5:

[0079] Operation process

[0080] Flushing preparation: Flushing fluid is delivered to the lungs through the flushing tube (6), and the nozzle holes (2) of the plug and the nozzle holes (3) of the sputum suction tube correspond one to one, ensuring that the flushing fluid can accurately reach the area that needs to be cleaned.

[0081] Suction preparation: The sputum suction outer tube (4) is controlled by the suction valve (13) to prepare for suctioning sputum.

[0082] Mode switching: According to clinical needs, the operator can quickly switch the working mode through the suction valve (13) and flushing valve (14) on the handle. In mode 4, by accurately controlling the water injection and suction time, the water flushed into the alveoli loses pressure instantly and quickly enters the suction tube, thereby cleaning the mucus in the alveoli.

[0083] Embodiment 6:

[0084] The present invention has the following technical advantages:

[0085] All-round suction: The suction holes (5) are evenly distributed 360 degrees around the outer circumference of the suction tube (4) to achieve all-round suction.

[0086] Independent tube lumen design: The suction tube (4) and the flushing tube (6) are independent tube lumens to avoid cross contamination.

[0087] Precise control: The suction valve (13) and the flushing valve (14) are respectively fixed on the upper cover (31) and the lower cover (12) of the handle, which is convenient for the operator to adjust quickly.

[0088] Embodiment 7:

[0089] Add-ons

[0090] Sheath (7): protects the suction tube and reduces irritation to the respiratory tract.

[0091] Suction chamber (8): separates the suction outer tube (4) and the flushing tube (6) to achieve independent operation.

[0092] Spring (15) and O-ring (16): ensure the tightness and flexibility of the valve.

[0093] Through this structure, the intelligent flushing and suction variable-diameter sputum suction tube device of the present invention can provide a more effective and safe respiratory tract cleaning solution, reduce the patient's pain and operation risks, and improve the treatment effect.

[0094] The parts not involved in the present invention are the same as the prior art or can be implemented by using the prior art.

[0095] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. An intelligent suction and flushing variable diameter sputum suction tube device, characterized in that: include: An external sputum suction tube (4), a flushing tube (6), a handle (19), a flushing hose (12), a suction hose (11), a flushing valve (14) and a suction valve (13); The flushing tube (6) is located inside the sputum suction outer tube (4); The flushing hose (12), the suction hose (11), the flushing valve (14) and the suction valve (13) are installed in the handle (19); The flushing pipe (6) and the flushing hose (12) are connected via a flushing pipe connecting pipe (9); The sputum suction outer tube (4) is in the shape of a cone with a small head end and a large rear end, and has sputum suction holes (5) evenly distributed on the outer circumference at 360 degrees; the front end length of the flushing tube (6) is shorter than the length of the sputum suction outer tube (4), and the front ends are connected via a plug (1), and the plug (1) is provided with a plurality of plug spray holes (2); the head of the sputum suction outer tube (4) has sputum suction outer tube spray holes (3) evenly distributed, and the plug spray holes (2) and the sputum suction outer tube spray holes (3) correspond to each other one by one.

2. According to claim 1, the intelligent variable diameter suction tube device is characterized in that: The sputum suction outer tube (4) and the flushing tube (6) are controlled by the suction valve (13) and the flushing valve (14) respectively, and their working modes can be divided into four modes: flushing first and then suction, suction first and then flushing, flushing and suctioning at the same time, and controlling the water injection and suction time to make the water flushed into the alveoli lose pressure instantly and quickly enter the suction tube, so as to clean the mucus in the alveoli.

3. The intelligent variable diameter suction tube device according to claim 1 is characterized in that: The sputum suction outer tube (4) and the flushing tube (6) are separated by the sputum suction cavity (8), respectively. The flushing tube (6) and the sputum suction outer tube (4) belong to independent cavities, respectively, so as to achieve a flushing and suction phase separation mode.

4. The intelligent variable diameter suction tube device according to claim 1 is characterized in that: The handle (19) is composed of an upper cover (31) and a lower cover (10); the suction valve (13) and the flushing valve (14) are respectively fixed on the handle upper cover (31) and the lower cover (10).

5. The intelligent variable diameter suction tube device according to claim 1 is characterized in that: The head of the handle (19) is provided with a sheath (7), and the sheath (7) is sleeved on the outside of the sputum suction outer tube (4) and the flushing tube (6).

6. The intelligent variable diameter suction tube device according to claim 3 is characterized in that: The sputum suction chamber (8) is located between the sputum suction outer tube (4) and the flushing tube (6), and is used to separate the sputum suction outer tube (4) and the flushing tube (6); The sputum suction chamber (8) is connected to the suction valve (13) via a suction hose (11).

7. The intelligent variable diameter suction tube device according to claim 1 is characterized in that: The suction valve (13) and the flushing valve (14) are both provided with a valve body hole (17), a spring (15) and an O-ring (16), and the spring (15) and the O-ring (16) are used to ensure the sealing of the suction valve (13) and the flushing valve (14).

8. The intelligent variable diameter suction tube device according to claim 4 is characterized in that: The heads of the flushing valve (14) and the suction valve (13) are respectively provided with a flushing tube (20) and a suction tube (21) connected via a valve body joint (18); the heads of the flushing tube (20) and the suction tube (21) are provided with a flushing joint (23) and a suction joint (22).

9. The intelligent variable diameter suction tube device according to claim 8, characterized in that: The upper cover (31) of the handle (19) has an upper cover suction tube hole (30), an upper cover tube cavity groove (33) and an upper cover valve body hole (32), which are used to connect the liquid suction tube (21), the sputum suction outer tube (4) and the suction valve (13).

10. The intelligent flushing and suction variable diameter sputum suction tube device according to claim 8, characterized in that: Also includes: A water source (29), a control valve (35), a host (34), a sputum recovery device (28), a sputum recovery device suction tube (26) and a water source flushing tube (27); The water source (29) is connected to the control valve (35) through a pipeline; one end of the water source flushing pipe (27) is connected to the flushing joint (23) through a water source flushing pipe joint (25), and the other end is connected to the control valve (35); one end of the sputum recovery device suction pipe (26) is connected to the suction joint (22) through a sputum recovery device suction pipe joint (24), and the other end is connected to the sputum recovery device (28); the host is respectively connected to the sputum recovery device (28) and the control valve (35) through pipelines.

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