Tracheal intubation tube capable of detecting end-tidal carbon dioxide

Abstract

The present invention relates to the technical field of medical devices, and discloses an endotracheal tube capable of detecting end-tidal carbon dioxide, comprising a hose, an air bag arranged outside the hose, a flexible trachea arranged outside the air bag, a joint arranged outside the hose, a joint arranged outside the joint, an oxygen connecting pipe, and a guide assembly arranged inside the joint, wherein the guide assembly specifically comprises a partition arranged inside the joint. The endotracheal tube capable of detecting end-tidal carbon dioxide, by providing a guide assembly, when working, oxygen enters the first section through the oxygen connecting pipe, and then enters the second section and the hose in sequence, and the exhaled gas enters the third section from the hose, and then enters the fourth section, the first section, and the oxygen connecting pipe in sequence, so that the space inside the main body is divided to form a stable circulation channel, so that the gas inside the main body can circulate fully, dead space can be avoided, and the accuracy of the monitoring results can be guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a tracheal intubation tube capable of detecting end-tidal carbon dioxide. Background Art

[0002] A tracheal tube is a special tube that is inserted into the patient's trachea through the mouth or nose. It is mainly used for respiratory dysfunction that requires mechanical ventilation support, airway protection, and surgical anesthesia. It is usually made of materials such as polyvinyl chloride and silicone, and there are different models. In clinical use, the patient needs to be evaluated and items prepared before tracheal intubation; when the patient has severe respiratory disorders and no spontaneous breathing, the patient's neck will be cut open for intubation or the nasal cavity will be intubated, which has less respiratory resistance and is long-lasting and stable. When the patient has only mild respiratory disorders and weak spontaneous breathing, the oral intubation that causes the least harm to the human body will be chosen. During the operation, the airway is opened, the laryngoscope is inserted, and the catheter is inserted into the trachea through the glottis. After confirming the position, it is fixed; then the respiratory equipment is connected, vital signs are monitored, and care is provided.

[0003] In order to evaluate the effectiveness of breathing, connect ventilation status, monitor circulatory function and improve the safety of anesthesia, a carbon dioxide detector is often connected to the outside of the endotracheal tube through a connector or catheter to monitor the user's respiratory status.

[0004] A fiber bronchoscope capable of detecting end-tidal carbon dioxide is disclosed in the patent publication number CN219594549U, wherein the fiber bronchoscope comprises a display device, a fiber bronchoscope body, an end-tidal carbon dioxide detection device and a negative pressure suction device; the display device is arranged on the fiber bronchoscope body; the fiber bronchoscope body comprises an operating rod and an insertion catheter; one end of the operating rod is connected to one end of the insertion catheter; a through hole is provided on the side wall of one end of the operating rod, and the side wall of one end of the operating rod is connected to one end of the negative pressure suction device through the through hole; the other end of the negative pressure suction device is connected to the end-tidal carbon dioxide detection device. The fiber bronchoscope of the above scheme has the function of simultaneously observing the situation in the airway and detecting the carbon dioxide gas concentration at the tip of the bronchoscope, which can help the endotracheal intubation guided by the fiber bronchoscope to be quickly positioned and confirm the successful placement of the tube.

[0005] The prior art has the following defects:

[0006] Since connectors are needed to connect multiple catheters with different functions, the connectors need to be thickened and widened, which results in a larger internal space and poor gas circulation. During use, dead space may appear inside the connector, causing carbon dioxide retention, affecting the real-time monitoring accuracy. At the same time, since the connector is located on the outside of the human body, when the warm gas exhaled by the patient enters the connector, the water vapor in the gas will condense here. The water vapor generated by the breathing accumulates in the connector, which may affect the circulation of the gas and cause delays in the monitoring results. Summary of the invention

[0007] In view of the problem in the prior art that a dead space may appear inside the joint, resulting in carbon dioxide retention and affecting the real-time monitoring accuracy, a tracheal intubation tube capable of end-tidal carbon dioxide detection is proposed.

[0008] The present application provides a tracheal intubation tube capable of performing end-tidal carbon dioxide detection, the purpose of which is to achieve sufficient circulation of gas inside the joint.

[0009] The technical solution of the present invention is: an endotracheal tube capable of performing end-tidal carbon dioxide detection, comprising a hose, an air bag arranged outside the hose, a flexible trachea arranged outside the air bag, a joint arranged outside the hose, an anesthesia pipe and an oxygen pipe arranged outside the joint, and a guide assembly arranged inside the joint, wherein the guide assembly specifically comprises a partition arranged inside the joint, side plates arranged on both sides of the partition, and a central vent hole and side vent holes respectively opened on the surfaces of the partition and the side plates;

[0010] The outer contour of the partition is fitted with the inner wall of the joint, dividing the internal space of the joint into two independent sections on the left and right; the outer contour of the side plate is fitted with the inner wall of the joint, dividing the independent section inside the joint into two small independent sections on the upper and lower sides; the central vent hole connects the two independent sections on the left and right sides, and the side vent hole connects the two small independent sections on the upper and lower sides; one-way flow components are arranged inside the central vent hole and the side vent hole;

[0011] The one-way flow assembly specifically includes a tube disposed inside the central vent hole and the side vent hole, a mounting ring and a fixing ring disposed at both ends of the tube, a blocking plate disposed at the center of the mounting ring, a connecting strip disposed between the mounting ring and the blocking plate, and a diaphragm disposed between the tube and the fixing ring;

[0012] The diaphragm is recessed toward the blocking plate, and an air port is opened at the center. The blocking plate in the central air hole faces the oxygen pipe, and the one-way flow components in the air holes on both sides are installed in reverse.

[0013] Furthermore, the connector specifically includes a main body and a top cap, the main body and the top cap are threadedly connected, the connector and the oxygen pipe are fixed to the outside of the main body, and the guide assembly is located inside the main body;

[0014] The top of the top cap is fixedly connected with a detection pipe 1, the oxygen pipe and the anesthesia pipe are connected to the independent section on the same side, and the detection pipe 1 is connected to the independent section on the other side.

[0015] Furthermore, the interior of the hose is penetrated from end to end to form a channel for air flow.

[0016] Furthermore, two flow channels are arranged in the hose.

[0017] Furthermore, an arc-shaped groove is formed on one side of the sealing plate close to the diaphragm.

[0018] Furthermore, a drainage assembly is also provided on the outside of the main body, and the drainage assembly specifically includes a drainage port opened on the outside of the main body, a drainage pipe provided at the opening outside the drainage port, and a converging pipe provided at one end of the drainage pipe away from the main body;

[0019] The drain outlets are respectively connected to the two independent sections, and the drain outlets are located above the lowest point of the upper surface of the side plate.

[0020] Furthermore, the side panel is designed to be inclined, with a side close to the partition being higher and a side close to the inner wall of the main body being lower.

[0021] Furthermore, the drainage assembly also includes a water collecting groove opened on the surface of the side plate, the water collecting groove is located at the lowest point of the partition surface, and the water collecting groove is connected to the drainage port.

[0022] Furthermore, a second detection pipe is fixedly connected to the outer side of the hose.

[0023] Beneficial effects of the present invention:

[0024] 1. By setting the guide component, when working, oxygen enters the first section through the oxygen connecting pipe, and then enters the second section and the hose in sequence. The exhaled gas enters the third section from the hose, and then enters the fourth section, the first section, and the oxygen connecting pipe in sequence. In this way, the space inside the main body is divided to form a stable flow channel, so that the gas in the main body can circulate fully, avoid the formation of dead space, and ensure the accuracy of the monitoring results.

[0025] 2. By setting up a one-way flow component, when the airflow enters from the direction of the mounting ring, the diaphragm is blown to protrude in the opposite direction of the sealing plate, and the airflow flows normally. When the airflow enters from the direction of the fixed ring, the diaphragm is blown to protrude in the direction of the sealing plate, and the airflow cannot flow through. In this way, the direction of the airflow can be controlled to ensure the stability of the flow channel. At the same time, the gas flow is controlled by the movement of the diaphragm. The diaphragm is light and thin, and has little effect on the airflow, thereby keeping the patient's breathing smooth.

[0026] 3. By setting up the drainage assembly, the condensed water formed in the main body flows down along the inner wall of the main body and the surface of the partition, and then is guided to the drain port by the side panel, and finally discharged through the drain pipe and the converging pipe. This can prevent these water vapors from affecting the gas circulation in the main body, and also prevent water droplets from flowing back into the hose and irritating the human respiratory system.

[0027] 4. By designing a water collection tank and tilting the side panels, condensed water can be easily collected in the water collection tank and then discharged into the drain port. This makes it easier to collect condensed water and avoid water accumulation in the main body. At the same time, the tilted side panels and partitions form a stable structure, making the placement of the partitions more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A stereoscopic diagram of an endotracheal tube capable of performing end-tidal carbon dioxide detection according to the present invention;

[0029] Figure 2 It is a schematic diagram of the joint of the present invention;

[0030] Figure 3 This is a disassembly diagram of the joint of the present invention;

[0031] Figure 4 It is a schematic diagram of the guide assembly of the present invention;

[0032] Figure 5 It is a schematic diagram of the central vent hole and the side vent hole of the present invention;

[0033] Figure 6 It is a schematic diagram of a one-way flow component of the present invention;

[0034] Figure 7 This is a disassembled diagram of the one-way flow assembly of the present invention;

[0035] Figure 8 It is a top view of the joint of the present invention;

[0036] Fig. 9 For the present invention Figure 8 Sectional view at AA;

[0037] Fig.10 For the present invention Figure 8 Sectional view at the middle BB;

[0038] Fig.11 For the present invention Fig. 9 A cross-sectional view of a one-way flow assembly;

[0039] Fig.12 This is a schematic diagram of the structure of Embodiment 4 of the present invention;

[0040] Fig.13 For the present invention Fig.12 Schematic diagram of the middle hose;

[0041] Fig.14 It is a schematic diagram of the interlayer of the present invention;

[0042] Fig.15 This is a schematic diagram of the inner clamp tube of the present invention;

[0043] Fig.16 This is a schematic diagram of the second detection connection in Example 5 of the present invention.

[0044] In the figure:

[0045] 1. Hose; 11. Interlayer; 12. Inner clamp tube; 2. Air bag; 3. Flexible air tube; 4. Connector; 41. Main body; 42. Top cap; 5. Oxygen pipe; 6. Anesthesia pipe; 7. Detection pipe one; 71. Detection pipe two; 8. Guide assembly; 81. Partition; 82. Side plate; 83. Center vent; 84. Side vent; 9. One-way flow assembly; 91. Tube; 92. Mounting ring; 93. Sealing plate; 94. Connecting strip; 95. Diaphragm; 96. Fixing ring; 10. Drain assembly; 101. Water collecting trough; 102. Drain outlet; 103. Drain pipe; 104. Converging pipe. DETAILED DESCRIPTION

[0046] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0047] Example 1, reference Figure 1-12 , which is the first embodiment of the present invention, provides an endotracheal tube capable of detecting end-tidal carbon dioxide, including a hose 1, an air bag 2 arranged on the outside of the hose 1, a flexible trachea 3 arranged on the outside of the air bag 2, a connector 4 arranged on the outside of the hose 1, an anesthesia connecting pipe 6 and an oxygen connecting pipe 5 arranged on the outside of the connector 4, and also includes a guide assembly 8 arranged inside the connector 4, the guide assembly 8 specifically includes a partition 81 arranged inside the connector 4, side panels 82 arranged on both sides of the partition 81, and a central vent 83 and side vents 84 respectively opened on the surfaces of the partition 81 and the side panels 82.

[0048] Specifically, the airbag 2 is fixedly connected to the outside of the hose 1, and the flexible trachea 3 is fixedly connected to the outside of the airbag 2. One end of the hose 1 is inserted into the human body, and the other end is sleeved on the outside of the connector 4. The outer contour of the partition 81 fits the inner wall of the connector 4, dividing the internal space of the connector 4 into two independent left and right sections. The connector 4, the oxygen connecting pipe 5 and the anesthesia connecting pipe 6 are integrally formed. The connector 4 specifically includes a main body 41 and a top cap 42. The main body 41 and the top cap 42 are threadedly connected to facilitate the installation of the guide component 8. The inner wall of the main body 41 is provided with a positioning groove corresponding to the partition 81. The connector 4 and the oxygen connecting pipe 5 are fixed to the outside of the main body 41, and the guide component 8 is located in the main body 41. The oxygen connecting pipe 5 is connected to the oxygen supply equipment. The oxygen supply equipment can specifically adopt ResMed Lumis150VPAPST, ResMed G3B30VT, Philips DSST30, etc. The above devices all have the function of intelligent synchronous breathing, which can better assist the patient's breathing, and the anesthesia connecting pipe 6 is connected to the anesthesia equipment.

[0049] The partition 81 and the side panel 82 are integrally formed, and the outer edge contours of the two are fitted with sealing strips. The outer contour of the side panel 82 fits the inner wall of the joint 4, and the independent section inside the joint 4 is further divided into two small independent sections above and below. The central air vent 83 connects the two independent sections on the left and right, and the side air vent 84 connects the two small independent sections above and below. The four sections are conveniently divided into the first section, the second section, the third section, and the fourth section in a clockwise direction. The oxygen pipe 5 and the anesthesia pipe 6 are connected to the first section. The central air vent 83 and the side air vent 84 are arranged inside the one-way flow component 9. The central air vent 83 is located at the top of the partition 81, and the side panel 82 can make the placement of the partition 81 more stable.

[0050] By setting the guide component 8, when working, oxygen enters the first section through the oxygen connecting pipe 5, and then enters the second section and the hose 1 in sequence; the exhaled gas enters the third section from the hose 1, and then enters the fourth section, the first section and the oxygen connecting pipe 5 in sequence. In this way, the space inside the main body 41 is divided to form a stable flow channel, so that the gas in the main body 41 can flow fully, avoiding the occurrence of dead space, and ensuring the accuracy of the monitoring results.

[0051] The one-way flow component 9 specifically includes a tube 91 respectively arranged inside the central air vent 83 and the side air vent 84, a mounting ring 92 and a fixing ring 96 arranged at both ends of the tube 91, a sealing plate 93 arranged at the center of the mounting ring 92, a connecting strip 94 arranged between the mounting ring 92 and the sealing plate 93, and a diaphragm 95 arranged between the tube 91 and the fixing ring 96.

[0052] Specifically, the cross-section of the tube 91 is in a "convex" shape, the tube 91, the mounting ring 92 and the fixing ring 96 are all annular, the mounting ring 92 and the fixing ring 96 are both threadedly connected to the tube 91, the tube 91 is clamped in the central air vent 83 or the side air vent 84, the mounting ring 92, the sealing plate 93 and the connecting strip 94 are integrally formed, the diaphragm 95 is recessed toward the sealing plate 93, and an air port is opened at the center, the diaphragm 95 is made of soft and elastic silicone material, the outer contour edge of the diaphragm 95 is clamped by the fixing ring 96 and the tube 91, the sealing plate 93 in the central air vent 83 faces the oxygen connecting pipe 5, and the one-way flow components 9 in the side air vents 84 on both sides are reversely installed; an arc-shaped groove is opened on the side of the sealing plate 93 close to the diaphragm 95.

[0053] By setting a one-way circulation component 9, when the airflow enters from the direction of the mounting ring 92, the diaphragm 95 is blown to protrude in the opposite direction of the sealing plate 93, and the airflow flows normally. When the airflow enters from the direction of the fixing ring 96, the diaphragm 95 is blown to protrude in the direction of the sealing plate 93, and the airflow cannot flow through. In this way, the direction of the airflow can be controlled to ensure the stability of the circulation channel. At the same time, the gas flow is controlled by the movement of the diaphragm 95. The diaphragm 95 is light and thin, and has little effect on the circulation of the airflow, thereby keeping the patient's breathing smooth.

[0054] Example 2, reference Figure 1-12 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that a drainage component 10 is also provided on the outside of the main body 41. The drainage component 10 specifically includes a drainage port 102 opened on the outside of the main body 41, a drainage pipe 103 arranged at the outer opening of the drainage port 102, and a converging pipe 104 arranged at one end of the drainage pipe 103 away from the main body 41.

[0055] Specifically, the drain outlet 102 is connected to two independent sections, which are the first section and the fourth section respectively. The drain outlet 102 is located above the lowest point of the upper surface of the side panel 82. The drain pipe 103 is glued to the main body 41. The converging pipe 104 is inserted into the drain pipe 103. The converging pipe 104 is in a "Y" shape. The converging pipe 104 is connected to an external water collection device.

[0056] By setting up the drainage component 10, the condensed water formed in the main body 41 flows down along the inner wall of the main body 41 and the surface of the partition 81, and is then guided by the side plate 82 to the drainage port 102, and finally discharged through the drainage pipe 103 and the converging pipe 104. In this way, these water vapors can be prevented from affecting the gas circulation in the main body 41, and water droplets can be prevented from flowing back into the hose 1 and irritating the human respiratory system.

[0057] The drainage assembly 10 further includes a water collecting groove 101 opened on the surface of the side plate 82 . The water collecting groove 101 is located at the lowest point of the surface of the partition plate 81 , and the water collecting groove 101 is connected to the drainage port 102 .

[0058] Specifically, the side plate 82 is designed to be inclined, with a side close to the partition 81 being higher and a side close to the inner wall of the main body 41 being lower, and the water collecting tank 101 is butted against the drain outlet 102 .

[0059] By designing the water collecting trough 101 and tilting the side panel 82, condensed water can be easily collected in the water collecting trough 101 and then discharged into the drain port 102. This facilitates the collection of condensed water and avoids water accumulation in the main body 41. At the same time, the tilted side panel 82 and the partition 81 form a stable structure, making the placement of the partition 81 more stable.

[0060] Example 3, reference Figure 1 , which is the third embodiment of the present invention. This embodiment is different from the first embodiment in that a detection pipe 7 is fixedly connected to the top of the top cap 42, and the detection pipe 7 is connected to the monitoring equipment.

[0061] The oxygen pipe 5 and the anesthesia pipe 6 are connected to the independent interval on the same side, specifically the first interval, and the detection pipe 7 is connected to the independent interval on the other side, specifically the fourth interval. In this way, the anesthesia pipe 6 and the detection pipe 7 are separated into different intervals to prevent anesthetic gas from entering the detection pipe 7 and causing abnormalities in the monitoring equipment.

[0062] Example 4, reference Figure 1 , which is the fourth embodiment of the present invention. This embodiment is different from the first embodiment in that the interior of the hose 1 is penetrated from end to end to form a channel for air flow.

[0063] Example 5, reference Figure 12-15 , which is the fifth embodiment of the present invention. This embodiment is different from the first embodiment in that: two circulation channels are arranged in the hose 1; the two circulation channels here can be formed by setting an interlayer 11, which is a rectangular film. The interlayer 11 is located in the hose 1, and its outer contour is fixedly connected to the inner wall of the hose 1. Its two ends extend to the openings at both ends of the hose 1, dividing the inner tube cavity of the hose 1 into two, one side for air intake and the other side for air outlet; or an inner clamp tube 12 is arranged inside the hose 1, and the two ends of the inner clamp tube 12 extend to the openings at both ends of the hose 1, and part of the exhaled gas flows into the inner clamp tube 12.

[0064] Example 6, reference Figure 12-16 , which is the sixth embodiment of the present invention. This embodiment is different from the fourth embodiment in that: a second detection pipe 71 is fixed to the outer side of the end of the hose 1 close to the connector 4, the second detection pipe 71 is connected to the inside of the hose 1, and the end of the second detection pipe 71 away from the hose 1 is connected to the monitoring device.

[0065] When the interlayer 11 is provided, the second detection connecting pipe 71 is connected to the side of the air outlet in the hose 1 ; when the inner clamping pipe 12 is provided, the end of the inner clamping pipe 12 close to the upper opening of the hose 1 is connected to the second detection connecting pipe 71 .

[0066] Based on Examples 1-3, the working principle of the endotracheal intubation tube capable of detecting end-tidal carbon dioxide of the present invention is as follows:

[0067] During installation, connect the mounting ring 92 to one end of the tube 91, and then place the tube 91 on the table with the mounting ring 92 facing downward. Then place the diaphragm 95 at the upper opening of the tube 91, and then put the fixing ring 96 on the top of the tube 91, turn it and tighten it. In this way, assemble five one-way flow components 9.

[0068] Insert the one-way circulation component 9 into the central air vent 83 and the side air vent 84 one by one, control the ventilation direction of the one-way circulation component 9 to form a clockwise circulation channel, and then insert the partition 81 into the main body 41 along the positioning groove, and keep the side plate 82 facing downward during this process; after the partition 81 is inserted, the partition 81 fits against the inner wall of the main body 41, the side plate 82 fits against the inner bottom wall of the main body 41, the water collecting trough 101 is connected with the drain outlet 102, and the top cap 42 is installed on the top of the main body 41.

[0069] The converging pipe 104 is connected to the outside of the drain pipe 103, and then the hose 1 is sleeved on the bottom of the main body 41, thus completing the entire assembly.

[0070] When in use, insert the hose 1 into the airway from the patient's mouth, and then inflate the airbag 2 through the flexible trachea 3 to expand the airbag 2 to block the airway, and the connector 4 is placed outside the patient's mouth; connect the oxygen supply equipment to the oxygen connecting pipe 5, the anesthesia equipment to the anesthesia connecting pipe 6, the monitoring equipment to the detection connecting pipe 7, and the water collection equipment to the gathering pipe 104.

[0071] The oxygen supply device inputs oxygen into the main body 41 through the oxygen pipe 5, and the oxygen enters the first interval. The pressure in the first interval increases, and the diaphragm 95 in the one-way flow component 9 in the central air hole 83 protrudes toward the blocking plate 93, and the air port of the diaphragm 95 is attached to the surface of the blocking plate 93 to prevent gas from passing through. The diaphragm 95 in the one-way flow component 9 in the side air hole 84 protrudes in the opposite direction of the blocking plate 93, and the air port of the diaphragm 95 is opened and expanded by the airflow, and the oxygen in the first interval flows into the second interval, and then under the guidance of the weak breathing of the human body, as the human body inhales, the oxygen flows into the human airway along the hose 1, and then the oxygen supply device sucks out the gas in the first interval through the oxygen pipe 5, and the one-way flow component 9 between the first interval and the second interval is closed, the one-way flow component 9 between the first interval and the fourth interval is opened, and the one-way flow component 9 between the fourth interval and the third interval is opened, and the waste gas exhaled by the human body enters the third interval through the hose 1, then enters the first interval through the fourth interval, and is finally discharged through the oxygen pipe 5.

[0072] During anesthesia, the anesthesia device passes the anesthetic gas into the main body 41 through the anesthesia connection pipe 6, first into the first interval, and then into the second interval. Under the guidance of the weak breathing of the human body, as the human body inhales, the anesthetic gas flows into the human airway along the hose 1, and the agent in the anesthetic gas is absorbed by the human body.

[0073] When the waste gas exhaled by the human body enters the fourth interval, part of it enters the detection pipe 7, and then flows into the monitoring equipment for analysis. After a period of use, condensed water appears in the main body 41, and the condensed water flows downward along the inner wall of the main body 41 and the partition 81, and then gathers at the lower part of the side plate 82. The accumulated water flows into the drain pipe 103 through the drain port 102, and is finally discharged through the convergence pipe 104.

[0074] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An endotracheal tube capable of detecting end-tidal carbon dioxide, comprising a hose (1), an air bag (2) arranged outside the hose (1), a flexible trachea (3) arranged outside the air bag (2), a joint (4) arranged outside the hose (1), an anesthesia pipe (6) and an oxygen pipe (5) arranged outside the joint (4), characterized in that: It also includes a guide assembly (8) disposed inside the joint (4), the guide assembly (8) specifically including a partition (81) disposed inside the joint (4), side plates (82) disposed on both sides of the partition (81), and a central vent hole (83) and side vent holes (84) respectively formed on the surfaces of the partition (81) and the side plates (82); The outer contour of the partition plate (81) fits with the inner wall of the joint (4) to divide the internal space of the joint (4) into two left and right independent sections; the outer contour of the side plate (82) fits with the inner wall of the joint (4) to further divide the independent section inside the joint (4) into two upper and lower small independent sections; the central vent hole (83) connects the two left and right independent sections; the side vent hole (84) connects the two upper and lower small independent sections; and one-way flow components (9) are arranged inside the central vent hole (83) and the side vent hole (84); The one-way flow assembly (9) specifically comprises a tube (91) respectively arranged inside the central vent hole (83) and the side vent hole (84), a mounting ring (92) and a fixing ring (96) arranged at both ends of the tube (91), a blocking plate (93) arranged at the center of the mounting ring (92), a connecting strip (94) arranged between the mounting ring (92) and the blocking plate (93), and a diaphragm (95) arranged between the tube (91) and the fixing ring (96); The diaphragm (95) is recessed toward the blocking plate (93) and has an air port at the center. The blocking plate (93) in the central vent hole (83) faces the oxygen pipe (5), and the one-way flow components (9) in the side vent holes (84) on both sides are installed in reverse. The connector (4) specifically comprises a main body (41) and a top cap (42), the main body (41) and the top cap (42) are threadedly connected, the connector (4) and the oxygen pipe (5) are fixed to the outside of the main body (41), and the guide assembly (8) is located inside the main body (41); The top of the top cap (42) is fixedly connected with a detection pipe connection 1 (7), the oxygen pipe connection (5) and the anesthesia pipe connection (6) are connected to the independent section on the same side, and the detection pipe connection 1 (7) is connected to the independent section on the other side.

2. The endotracheal intubation tube capable of detecting end-tidal carbon dioxide according to claim 1, characterized in that: The interior of the hose (1) is penetrated from end to end to form a channel for air flow.

3. The endotracheal intubation tube capable of detecting end-tidal carbon dioxide according to claim 1, characterized in that: Two flow channels are arranged in the hose (1).

4. The endotracheal intubation tube capable of detecting end-tidal carbon dioxide according to claim 1, characterized in that: An arc-shaped groove is formed on one side of the sealing plate (93) close to the diaphragm (95).

5. The endotracheal intubation tube capable of detecting end-tidal carbon dioxide according to claim 1, characterized in that: A drainage assembly (10) is also provided on the outside of the main body (41), and the drainage assembly (10) specifically comprises a drainage port (102) opened on the outside of the main body (41), a drainage pipe (103) provided at the opening outside the drainage port (102), and a converging pipe (104) provided at one end of the drainage pipe (103) away from the main body (41); The drainage opening (102) is respectively connected to the two independent sections, and the drainage opening (102) is located above the lowest point of the upper surface of the side plate (82).

6. The endotracheal intubation tube capable of detecting end-tidal carbon dioxide according to claim 5, characterized in that: The side plate (82) is designed to be inclined, with a side close to the partition plate (81) being higher and a side close to the inner wall of the main body (41) being lower.

7. The endotracheal intubation tube capable of detecting end-tidal carbon dioxide according to claim 6, characterized in that: The drainage assembly (10) further comprises a water collecting groove (101) provided on the surface of the side plate (82), the water collecting groove (101) being located at the lowest point of the surface of the partition plate (81), and the water collecting groove (101) being butted against the drainage port (102).

8. The endotracheal intubation tube capable of detecting end-tidal carbon dioxide according to claim 3, characterized in that: A second detection pipe (71) is fixedly connected to the outer side of the hose (1).

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