CN221713033U - A closed suction tube - Google Patents

Abstract

The utility model discloses a closed type sputum suction pipe, which comprises a T-shaped three-way joint, a sputum suction pipe for sucking sputum, a sputum suction pipe insertion end for fixing the sputum suction pipe, a Y-shaped three-way joint, a flushing component for flushing the sputum suction pipe, a sputum collection component for collecting sputum and a negative pressure suction component for sucking the sputum, wherein one end horizontal joint of the T-shaped three-way joint is connected with the sputum suction pipe insertion end, the interior of the sputum suction pipe insertion end is provided with the sputum suction pipe, one end of the sputum suction pipe is connected with the Y-shaped tee joint, the other end of the sputum suction pipe penetrates through the insertion end of the sputum suction pipe to be connected in the T-shaped tee joint, a flushing component is connected to the T-shaped tee joint on one side of the insertion end of the sputum suction pipe, one end of the flushing component is connected with the T-shaped tee joint, the other end of the flushing component is connected with the Y-shaped tee joint, one end of the sputum collection component is connected with the horizontal joint of the Y-shaped tee joint, and the other end of the sputum collection component is connected with the negative pressure suction component.

Description

A closed suction tube

Technical Field

The utility model relates to the field of medical instruments, in particular to a closed sputum suction tube.

Background Art

Clinically, for critically ill patients with gas exchange disorders (such as multiple injuries, MODS, severe burns) and patients under general anesthesia (such as liver transplantation, heart and lung transplantation, cranial and brain surgery), it is necessary to promptly establish an artificial airway for mechanical ventilation and promptly remove artificial airway secretions to keep the patient's airway open. However, when quantitative testing of the aspirated sputum is required, quantitative extraction of the sputum is usually required, which is time-consuming and laborious.

Chinese patent announcement number CN 207871195 U discloses a similar closed sputum suction tube, including a T-type three-way joint valve, a sputum suction tube, a transparent film protective sleeve, a negative pressure control valve and a sputum collecting device, wherein two horizontal interfaces of the T-type three-way joint valve are respectively connected to the endotracheal tube connection port and the sputum suction tube insertion end, the vertical interface of the T-type three-way joint valve is connected to the ventilator connection port, the ventilator connection port is obliquely arranged on the vertical interface of the T-type three-way joint valve, the endotracheal tube connection end of the T-type three-way joint connected to the endotracheal tube connection port is provided with an oxygen tube device and a medicine dripping device, the sputum suction tube insertion end connected to the T-type three-way joint valve is provided with a cleaning device, the oxygen tube device, The ends of the medicine dropping device and the cleaning device are both provided with sealing covers: one end of the sputum suction tube is inserted into the sputum suction tube insertion end, and the other end of the sputum suction tube is sealedly connected to one end of the negative pressure control valve; the outside of the sputum suction tube is provided with a transparent film protective cover whose two ends are respectively sealedly connected to the sputum suction tube insertion end and the negative pressure control valve: an elastic thin sheet for the sputum suction tube to pass through is provided on the inner wall of the T-type three-way joint valve at a position between the ventilator connection port and the cleaning device connection port; the other end of the negative pressure control valve is detachably connected to the sputum collecting device through a connecting pipe, and the sputum collecting device is provided with a measuring device, and the measuring device is provided with a sputum collection port.

However, when the above device is used to collect sputum quantitatively, the sputum needs a negative pressure valve to reach the vacuum tube, which can easily cause contamination to the negative pressure valve. In addition, when extracting the sputum, it is necessary to use a vacuum tube to manually extract the sputum, which is time-consuming, labor-intensive and has the possibility of cross-infection. At the same time, when the suction tube is pulled out, the sputum on the outer wall of the suction tube will be scraped off by the elastic sheet and remain inside the T-type three-way joint valve, thereby causing contamination to the inside of the T-type three-way joint valve.

Utility Model Content

The utility model aims to overcome the shortcomings of the above-mentioned prior art that sputum needs a negative pressure valve to reach the vacuum tube, which easily causes pollution to the negative pressure valve, and that the sputum needs to be manually extracted using a vacuum tube, which is time-consuming and labor-intensive and has the possibility of cross infection, and that the sputum on the outer wall of the suction tube will be scraped off by the elastic sheet and remain inside the T-type three-way joint valve, thereby causing pollution to the inside of the T-type three-way joint valve.

A closed sputum suction tube is proposed, comprising a T-shaped three-way joint, a sputum suction tube for suctioning sputum, a sputum suction tube insertion end for fixing the sputum suction tube, a Y-shaped three-way joint, a flushing component for flushing the sputum suction tube, a sputum collecting component for collecting sputum and a negative pressure suction component for suctioning sputum, wherein a horizontal joint at one end of the T-shaped three-way joint is connected to the sputum suction tube insertion end, a sputum suction tube is arranged inside the sputum suction tube insertion end, one end of the sputum suction tube is connected to the Y-shaped three-way joint, the other end of the sputum suction tube passes through the sputum suction tube insertion end and is connected to the inside of the T-shaped three-way joint, a flushing component is connected to the T-shaped three-way on one side of the sputum suction tube insertion end, one end of the flushing component is connected to the T-shaped three-way joint, the other end of the flushing component is connected to the Y-shaped three-way joint, one end of the sputum collecting component is connected to the horizontal joint of the Y-shaped three-way joint, and the other end of the sputum collecting component is connected to the negative pressure suction component.

In the technical solution of the utility model, when the patient's sputum is suctioned by the negative pressure suction component, the patient's sputum will be directly sucked into the sputum collecting component through the sputum suction tube, and the sputum will be collected in the sputum collecting component and will not flow through the negative pressure suction component, so as to solve the disadvantage mentioned in the technical background that the sputum needs a negative pressure valve to reach the vacuum tube, which easily causes pollution to the negative pressure valve.

When suctioning the patient's sputum, the sputum can be directly drawn into the sputum collecting component by opening the negative pressure control valve. After the sputum is collected in the sputum collecting component, the sputum sample can be taken out through a dropper, and there is no need to use a vacuum tube to extract the sputum inside the suction tube. This is to solve the shortcomings mentioned in the technical background that the sputum needs to be manually extracted using a vacuum tube, which is time-consuming, labor-intensive and has the possibility of cross infection.

When the suction tube is withdrawn after suctioning the patient, the sputum on the outer wall of the suction tube will be scraped off by the scraper and remain inside the T-type three-way joint. Then, when the suction tube is flushed, the sputum remaining inside the T-type three-way joint will be driven by the saline solution to flush out from the auxiliary suction tube, thereby avoiding the residual sputum remaining inside the T-type three-way joint, so as to solve the disadvantage mentioned in the technical background that the sputum on the outer wall of the suction tube will be scraped off by the elastic sheet and remain inside the T-type three-way joint valve, thereby causing pollution to the inside of the T-type three-way joint valve.

Preferably, a trachea connector is arranged on another horizontal interface of the T-type three-way connector, a ventilator connector is arranged on the middle interface of the T-type three-way connector, an isolation valve is also arranged on the interface at one end of the T-type three-way connector close to the insertion end of the suction tube, a flushing assembly is arranged on the T-type three-way connector at a middle position between the isolation valve and the insertion end of the suction tube, and a drug injection tube is connected to the other side of the isolation valve.

Preferably, a hollow scraper is fixed inside the insertion end of the suction tube, and one end of the suction tube passes through the hollow scraper and is connected to the inside of the T-type three-way joint. When the suction tube is used for suction, sputum will be stuck on the outer wall of the suction tube, and the scraper will scrape off the sputum stuck on the outer wall of the suction tube, and try to prevent the sputum on the outer wall of the suction tube from entering the inside of the transparent protective film, and prevent the sputum from forming sputum scab on the outer wall of the suction tube to contaminate the outer wall of the suction tube.

Preferably, the suction tube is provided with a transparent protective film, and one end of the transparent protective film is connected to the insertion end of the suction tube. The transparent protective film can seal the germs inside the sputum adhered to the outer wall of the suction tube to prevent the germs from floating around and causing cross infection.

Preferably, the flushing assembly includes a flushing tube, an auxiliary suction tube and a manual semi-ball valve, the flushing tube is connected to one side of the T-type three-way joint, one end of the auxiliary suction tube is connected to the other side of the T-type three-way joint, the other end of the auxiliary suction tube is connected to the Y-type three-way joint, and the manual semi-ball valve is connected to the inside of the auxiliary suction tube. When the suction tube is pulled out, a small section will be left in the T-type three-way joint to prevent gas from entering the transparent protective film and causing the transparent protective film to expand, thereby causing the suction tube to be unable to fully precipitate the flushed liquid. When the existing flushing assembly flushes the suction tube, the physiological saline left in the T-type three-way joint for flushing the suction tube will be completely extracted through the auxiliary suction tube to avoid bacterial growth due to incomplete cleaning, which is not conducive to the patient's health.

The preferred technical solution of the utility model is that the sputum collecting component includes a sputum collecting tank, an elastic valve, a catheter, a negative pressure tube and a jacket. Two through holes are arranged on the top cover of the sputum collecting tank, and elastic valves are arranged inside the two through holes. One end of the catheter is connected to the Y-type three-way joint, and the other end of the catheter passes through the through hole on the top cover of the sputum collecting tank and is connected to the inside of the sputum collecting tank. One end of the negative pressure tube is connected to the negative pressure suction component, and the other end of the negative pressure tube passes through another through hole on the top cover of the sputum collecting tank and is connected to the inside of the sputum collecting tank. A jacket is arranged on the catheter and the negative pressure tube, and the sputum collecting tank is connected to the jacket. The negative pressure tube is connected to the negative pressure suction component. When the negative pressure suction component is pressed, the negative pressure tube will suck the sputum in the sputum collecting tank. The air inside the sputum collecting tank is sucked out to form a negative pressure inside the sputum collecting tank. Under the action of atmospheric pressure, the sputum inside the suction tube flows into the sputum collecting tank through the catheter and is collected inside the sputum collecting tank to be processed. When the sputum collecting tank is fixed on the jacket, the outer walls of the catheter and the negative pressure tube are wrapped by the elastic valve. Therefore, when the catheter and the negative pressure tube are pulled out of the sputum collecting tank, the elastic valve will scrape off the sputum stuck on the outer walls of the catheter and the negative pressure tube to prevent the sputum from being brought to the outside by the catheter and the negative pressure tube to pollute the air. After the catheter and the negative pressure tube are pulled out, the elastic valve will seal the through hole on the top cover of the sputum collecting tank to prevent the bacteria inside the sputum from volatilizing out of the sputum collecting tank and forming cross infection.

Preferably, the sputum collecting can is provided with a scale on the can body, and when extracting sputum samples, a dropper can be used to extract according to the scale on the can body, without using a vacuum tube for extraction, thus simplifying the working steps of medical personnel.

Preferably, the negative pressure suction component is a negative pressure control valve, and the negative pressure regulating valve has high adjustment accuracy, can be finely adjusted according to the needs of use, and can effectively prevent gas leakage.

Compared with the prior art, the utility model has the following beneficial effects:

1. By setting up an auxiliary suction tube, after the suction tube is flushed with saline, the auxiliary suction tube will cooperate with the suction tube to extract all the saline used to flush the sputum remaining inside the T-type three-way connector, so as to prevent the residual sputum and liquid from entering the human trachea and causing harm to the patient's health;

2. The sputum drawn out through the suction tube will be collected inside the sputum collecting tank. Even when the sputum sample is drawn, the sputum will not pass through the negative pressure valve to avoid contamination of the negative pressure valve. At the same time, when and after collecting the sputum, the sputum collecting tank can always be kept in a sealed state, which can effectively prevent the spread of bacteria inside the sputum;

3. When collecting sputum samples from patients, negative pressure is used to directly collect sputum samples through a sputum collection can. There is no need to use a vacuum tube to absorb the sputum, which simplifies the work steps of medical staff.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of a three-dimensional structure of a closed sputum suction tube;

FIG2 is a schematic diagram of the structure of a flushing assembly of a closed sputum suction tube (the transparent protective film and the insertion end of the sputum suction tube are integrated, and a piece is removed to show the internal structure.);

FIG3 is a partial enlarged schematic diagram of point A in FIG2 ;

FIG4 is a diagram showing the structure of a closed suction tube and a suction tube insertion end (the transparent protective film and the suction tube insertion end are integrated, and a piece is removed to show the internal structure.);

Figure 5 is a schematic diagram of the structure of a sputum collecting component of a closed sputum suction tube (the jacket is a whole, and a piece is removed to show the internal structure.)

FIG6 is a schematic diagram of the structure of a sputum collecting tank of a closed sputum suction tube;

In the figure: 1-T-type three-way connector, 11-tracheal connector, 12-ventilator connector, 13-isolation valve, 14-drug injection tube, 2-suction tube, 21-transparent protective film, 3-suction tube insertion end, 31-scraper, 4-Y-type three-way connector, 5-flushing assembly, 51-flushing tube, 52-auxiliary suction tube, 53-manual hemispherical valve, 6-sputum collection assembly, 61-sputum collection tank, 62-elastic valve, 63-catheter, 64-negative pressure tube, 65-jacket, 7-negative pressure suction assembly.

DETAILED DESCRIPTION

The technical solution in the embodiment of the present utility model will be described in detail below with reference to the accompanying drawings 1-6 in the embodiment of the present utility model.

As shown in Figure 1, a closed sputum suction tube 2 is provided, wherein a horizontal joint at one end of the T-type three-way joint 1 is threadedly connected with a sputum suction tube insertion end 3, the interior of the sputum suction tube insertion end 3 is hollow, and a sputum suction tube 2 is arranged inside the sputum suction tube insertion end 3, one end of the sputum suction tube 2 is connected to a Y-type three-way joint 4, after sputum suction is completed using the sputum suction tube 2, the Y-type three-way joint 4 is pinched by hand to pull out the sputum suction tube 2, and the other end of the sputum suction tube 2 passes through the sputum suction tube insertion end 3 and is connected to the interior of the T-type three-way joint 1, and when the sputum suction tube 2 is used for sputum suction, the sputum suction tube 2 passes through the sputum suction tube insertion end 3 into the trachea for sputum suction, and a flushing component 5 is connected to the T-type three-way on one side of the sputum suction tube insertion end 3.

As shown in Figure 1, one end of the flushing component 5 is connected to the T-type three-way connector 1, and the other end of the flushing component 5 is connected to the Y-type three-way connector 4. After the suction tube 2 is completed, the flushing component 5 can be used to flush the inside of the suction tube 2 and the residual sputum remaining in the T-type three-way connector 1. One end of the sputum collecting component 6 is connected to the horizontal joint of the Y-type three-way connector 4, and the other end of the sputum collecting component 6 is connected to the negative pressure suction component 7. When you want to take a sputum sample from the patient, you can directly use the negative pressure suction component 7 to extract the patient's sputum and take the patient's sputum sample through the sputum collecting component 6. There is no need to use a vacuum tube to absorb the sputum, which simplifies the working steps of medical staff.

As shown in Figure 2, a trachea connector 11 is provided on the water bottle connector at the other end of the T-type three-way connector 1. When the suction tube 2 is used for suction, the trachea connector 11 is connected to the patient's trachea, so that the suction tube 2 can enter the patient's trachea through the trachea connector 11 to extract sputum. A ventilator connector 12 is provided on the middle connector of the T-type three-way connector 1. When the suction tube 2 is used for suction, the ventilator connector 12 will be connected to the ventilator to ensure that when the suction tube 2 is used for suction, the ventilator will not stop supplying oxygen to the patient, thereby avoiding the patient from fainting due to lack of oxygen.

As shown in Figure 2, one side of the T-type three-way connector 1 is located in the middle of the ventilator connector 12 and the trachea connector 11, and is also provided with a drug injection tube 14. If the patient's sputum cannot be extracted, the drug injection tube 14 can be used to humidify the sputum inside the patient's trachea to facilitate the suction tube 2 to extract the sputum. An isolation valve 13 is also provided on the horizontal connector of the T-type three-way connector 1 near the ventilator insertion end. The isolation valve 13 can seal the inside of the T-type three-way connector 1. When the flushing component 5 flushes the suction tube 2, the isolation valve 13 is in a closed state to prevent the flushing component 5 from flushing the suction tube 2. When the sputum suction tube 2 is flushed, saline flows into the patient's trachea and causes discomfort to the patient. When the suction tube 2 is used to extract sputum, the suction tube 2 needs to pass through the isolation valve 13 to enter the patient's trachea.

As shown in Figure 2, one end of the suction tube 2 is arranged inside the suction tube insertion end 3, and the other end of the suction tube 2 is connected to the Y-type three-way connector 4. A transparent protective film 21 is provided on the suction tube 2, and one end of the transparent protective film 21 is connected to the suction tube insertion end 3, and the other end of the transparent protective film 21 is connected to the suction tube 2. When the suction tube 2 is used to suction sputum from a patient, the suction tube 2 can be pinched through the transparent protective film 21 to insert the suction tube 2 into the patient's trachea.

As shown in Figure 2, after the suction tube 2 sucks the sputum, the suction tube 2 can be pinched through the transparent protective film 21 to pull the suction tube 2 out of the patient's trachea to prevent the sputum on the outer wall of the suction tube 2 from sticking to the hands of medical staff. At the same time, the transparent protective film 21 will form a seal with the T-type three-way connector 1 to prevent the bacteria in the sputum on the outer wall of the suction tube 2 from volatilizing inside the ward and causing cross infection.

As shown in Figure 2, a flushing tube 51 of the flushing assembly 5 is also connected to the same side of the T-type three-way connector as the injection tube 14. The flushing tube 51 is located between the insertion end 3 of the suction tube and the isolation valve 13. An auxiliary suction tube 52 is provided on the other side of the T-type three-way connector 1. One end of the auxiliary suction tube 52 is connected to the T-type three-way connector 1, and the other end of the auxiliary suction tube 52 is connected to the Y-type three-way connector 4. When the physiological saline that has flushed the suction tube 2 is extracted by the negative pressure suction component 7, the physiological saline for cleaning the inside of the T-type three-way connector will also be extracted by the negative pressure suction component 7.

As shown in Figure 2, one end of the sputum collecting component 6 is connected to the Y-type three-way connector 4. When the negative pressure suction component 7 is suctioning sputum, the negative pressure suction component 7 will extract the air inside the sputum collecting tank 61, and form a negative pressure inside the sputum collecting tank 61. The sputum inside the suction tube 2 will be sucked into the sputum collecting tank 61 by the negative pressure. After being collected inside the sputum collecting tank 61, the sputum sample is waiting to be cleaned or extracted by a dropper. The negative pressure suction component 7 used is a negative pressure control valve, which is connected to the inside of the pipeline. One end of the pipeline is connected to the sputum collecting component 6, and the other end of the pipeline is connected to the negative pressure suction device. When the negative pressure control valve is pressed, the negative pressure suction device will extract the air inside the sputum collecting tank 61 through the pipeline.

As shown in Figure 3, a manual semi-ball valve 53 is provided inside one end of the auxiliary suction tube 52 close to the T-type three-way connector 1. When the negative pressure control valve is used to extract the sputum in the suction tube 2 into the sputum collecting tank 61, the manual semi-ball valve 53 is in a closed state. Therefore, when the negative pressure suction device is suctioning sputum, the auxiliary suction tube 52 is in a closed state, and the negative pressure suction device can only extract the sputum in the suction tube 2. After flushing the sputum in the suction tube 2 and the T-type three-way connector 1 with normal saline, the manual semi-ball valve 53 is opened, and the negative pressure suction device is used to completely suck out the normal saline from the suction tube 2 and the T-type three-way connector 1 to prevent residual liquid from remaining in the T-type three-way connector 1 and entering the patient's trachea when the suction tube 2 is used to suction sputum, causing discomfort to the patient.

As shown in Figure 4, a circular hollow scraper 31 is arranged inside the insertion end 3 of the sputum suction tube, and one end of the sputum suction tube 2 is connected to the through hole inside the scraper 31. When the sputum suction tube 2 is suctioning sputum, the sputum suction tube 2 passes through the scraper 31 and then enters the patient's airway. After the sputum suction tube 2 is sucked out, the sputum sticking to the outer wall of the sputum suction tube 2 will be scraped off by the scraper 31 and remain in the T-type three-way connector 1 waiting to be flushed out by saline, so as to prevent the sputum from entering the transparent protective film 21 along with the sputum suction tube 2, and at the same time prevent the sputum from forming sputum scab on the outer wall of the sputum suction tube 2, so as to prevent the sputum from entering the patient's trachea during the next sputum suction and causing infection to the patient.

As shown in Figure 5, a catheter 63 and a negative pressure tube 64 are provided inside the jacket 65. One end of the catheter 63 is connected to the Y-type three-way connector 4, and the other end of the catheter 63 passes through the top cover of the sputum collecting tank 61 and is connected to the inside of the sputum collecting tank 61. One end of the negative pressure tube 64 is connected to the negative pressure suction component 7, and the other end of the negative pressure tube 64 also passes through the top cover of the sputum collecting tank 61 and is connected to the inside of the sputum collecting tank 61. Therefore, when the negative pressure control valve is pressed, the negative pressure suction device will draw out the air inside the sputum collecting tank 61 through the negative pressure tube 64, thereby forming a negative pressure inside the sputum collecting tank 61. After the negative pressure is formed inside the sputum collecting tank 61, the sputum inside the suction tube 2 will be pushed by the air pressure and flow into the inside of the sputum collecting tank 61 through the catheter 63, and will be collected inside the sputum collecting tank 61 and wait for the sputum sample to be extracted.

As shown in Figure 5, the sputum collecting tank 61 is connected to the jacket 65, and one end of the catheter 63 and the negative pressure tube 64 are both connected to the inside of the sputum collecting tank 61. The sputum extracted from the suction tube 2 will remain in the sputum collecting tank 61, and will be collected in the sputum collecting tank 61 waiting to be extracted as a sputum sample. Because the negative pressure tube 64 and the catheter 63 are not directly connected, when the negative pressure aspirator sucks the sputum in the suction tube 2, the sputum will flow into the inside of the sputum collecting tank 61 through the catheter 63, but will not flow into the inside of the negative pressure tube 64 through the catheter 63 to contaminate the negative pressure control valve.

As shown in Figure 6, two through holes are arranged on the top cover of the sputum collecting tank 61, and the catheter 63 and the negative pressure tube 64 are connected to the inside of the sputum collecting tank 61 through the through holes. Elastic valves 62 are arranged inside the two through holes. When the catheter 63 and the negative pressure tube 64 are inserted into the sputum collecting tank 61, the outer walls of the catheter 63 and the negative pressure tube 64 will squeeze the elastic valve 62 downward. After being squeezed, the elastic valve 62 will wrap the outer walls of the catheter 63 and the negative pressure tube 64 due to its own characteristics to prevent sputum from splashing out from the inside of the sputum collecting tank 61 when the sputum flows into the sputum collecting tank 61. When the catheter 63 and the negative pressure tube 64 are pulled out of the sputum collecting tank 61, the elastic valve 62 will automatically rebound according to its own characteristics to seal the two through holes on the sputum collecting tank 61 to prevent the pathogens in the sputum from floating out of the sputum collecting tank 61.

The movement process of this embodiment is as follows: when suctioning the patient, fix the tracheal connector 11 to the patient's intubation tube, then fix the ventilator connector 12 to the ventilator, then open the isolation valve 13, pinch the suction tube 2 through the transparent protective film 21, pass the suction tube 2 through the suction tube insertion end 3 and the tracheal connector 11 to the inside of the patient's trachea, then press the negative pressure suction component 7 with one hand, and twist the suction tube 2 with the other hand to pull the suction tube 2 out of the patient's trachea, and after the suction tube 2 is pulled out, close the isolation valve 13.

After closing the isolation valve 13, the negative pressure suction component 7 is pressed again to draw the sputum inside the suction tube 2 into the sputum collecting tube through the catheter 63, and the sputum on the outer wall of the suction tube 2 will be scraped off by the scraper 31 and remain in the T-type three-way connector 1. After all the sputum inside the suction tube 2 is sucked out, the sputum collecting tank 61 is removed to retain the sputum sample inside the sputum collecting tank 61, and then after replacing the new sputum collecting tank 61, the manual hemispherical valve 53 is opened, and physiological saline is input into the interior of the T-type connector three-way through the flushing tube 51, and then the negative pressure suction component 7 is pressed again.

The physiological saline inside the T-joint is extracted from the inside of the T-joint through the sputum suction tube 2 by the negative pressure suction device, and is input into the newly replaced sputum collecting tank 61 from the catheter 63. The physiological saline will flush the sputum suction tube 2 after passing through the sputum suction tube 2. When the physiological saline is extracted by the sputum suction tube 2, the physiological saline will also be simultaneously extracted by the auxiliary suction tube 52 under the action of the Y-joint 4. When the physiological saline is injected into the inside of the T-joint 1, the inside of the T-joint 1 has been cleaned. Therefore, when the physiological saline is extracted by the auxiliary suction tube 52, all the sputum remaining in the inside of the T-joint 1 will be extracted together, and the inside of the T-joint 1 will be cleaned.

The above embodiments are only for illustrating the technical idea of the present utility model, and cannot be used to limit the protection scope of the present utility model. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the present utility model shall fall within the protection scope of the present utility model.

Claims (8)

1. A closed sputum aspirator tube, its characterized in that: including T type three way connection (1), be used for inhaling the phlegm pipe (2), fixed sputum pipe that inhales of phlegm pipe (2) insert end (3), Y type three way connection (4), be used for washing the flushing subassembly (5) of sputum pipe (2), collect the collection phlegm subassembly (6) of sputum and be used for inhaling negative pressure suction subassembly (7) of phlegm, the one end level joint of T type three way connection (1) is connected with sputum pipe insert end (3), and the inside of sputum pipe insert end (3) is provided with sputum pipe (2), and the one end and the Y type three way connection (4) of sputum pipe (2) are connected, and the other end of sputum pipe (2) is passed sputum pipe insert end (3) and is connected in the inside of T type three way connection (1), is connected with flushing subassembly (5) on T type three way connection (1) of sputum pipe insert end (3), and the one end and the T type three way connection (1) of flushing subassembly (5) are connected, and the other end and the Y type three way connection (4) of collection subassembly (6) are connected to the negative pressure of the one end of sputum pipe insert (6) and are connected to the one end of three way connection (6).

2. A sealed sputum aspirator according to claim 1, wherein: the T-shaped three-way joint is characterized in that an air pipe joint (11) is arranged on the other horizontal joint of the T-shaped three-way joint (1), a breathing machine joint (12) is arranged on the middle section joint of the T-shaped three-way joint (1), an isolating valve (13) is further arranged on one end joint of the T-shaped three-way joint (1) close to the sputum suction pipe inserting end (3), a flushing component (5) is arranged on the T-shaped three-way joint (1) at the middle position of the isolating valve (13) and the sputum suction pipe inserting end (3), and a medicine injection pipe (14) is connected to the other side of the isolating valve (13).

3. A sealed sputum aspirator according to claim 2, wherein: the inside of inhaling phlegm pipe insertion end (3) is fixed with hollow doctor blade (31), and the one end of inhaling phlegm pipe (2) passes hollow doctor blade (31) to be connected in the inside of T type three way connection (1).

4. A sealed sputum aspirator according to claim 3 wherein: the sputum suction tube (2) is also sleeved with a transparent protective film (21), and one end of the transparent protective film (21) is connected with the insertion end (3) of the sputum suction tube.

5. A sealed sputum aspirator according to claim 2, wherein: the flushing assembly (5) comprises a flushing pipe (51), an auxiliary suction pipe (52) and a manual half ball valve (53), wherein the flushing pipe (51) is connected to one side of the T-shaped three-way joint (1), one end of the auxiliary suction pipe (52) is connected to the other side of the T-shaped three-way joint (1), the other end of the auxiliary suction pipe (52) is connected with the Y-shaped three-way joint (4), and the manual half ball valve (53) is connected to the inside of the auxiliary suction pipe (52).

6. A sealed sputum aspirator according to claim 1, wherein: the sputum collection assembly (6) comprises a sputum collection tank (61), an elastic valve (62), a guide pipe (63), a negative pressure pipe (64) and a jacket (65), wherein two through holes are formed in the top cover of the sputum collection tank (61), the elastic valve (62) is arranged in the two through holes, one end of the guide pipe (63) is connected with the Y-shaped three-way joint (4), the other end of the guide pipe (63) penetrates through the through hole in the top cover of the sputum collection tank (61) to be connected with the inside of the sputum collection tank (61), one end of the negative pressure pipe (64) is connected with the negative pressure suction assembly (7), the other end of the negative pressure pipe (64) penetrates through the other through hole in the top cover of the sputum collection tank (61) to be connected with the inside of the sputum collection tank (61), and the jacket (65) is arranged on the guide pipe (63) and the negative pressure pipe (64), and the sputum collection tank (61) are connected to the jacket (65).

7. The sealed sputum aspirator tube according to claim 6, wherein: the sputum collection tank (61) is provided with scales on the tank body.

8. The sealed sputum aspirator tube according to claim 6, wherein: the negative pressure suction assembly (7) is a negative pressure control valve.