Visual single lumen bronchial catheter

Abstract

The utility model relates to the field of medical equipment discloses a visual single lumen bronchial catheter, including the catheter, the inner chamber eccentricity of catheter is arranged, and the catheter includes main tracheal catheter and vice bronchial catheter, and the included angle is formed between main tracheal catheter and vice bronchial catheter, is provided with first outer air bag subassembly on main tracheal catheter, is provided with second inner air bag subassembly in vice bronchial catheter, is provided with second outer air bag subassembly on vice bronchial catheter, wherein, main tracheal catheter is provided with lateral hole, and lateral hole is located below first outer air bag subassembly, is provided with fence for surrounding lateral hole on main tracheal catheter, is provided with plugging air bag subassembly in fence, and plugging air bag subassembly is used for inflation plugging lateral hole, and the shrinkage exposes lateral hole. The utility model only utilizes one single lumen catheter structure cooperation to realize the function of double lumen tube left ventilation, right ventilation and double lumen ventilation.

Description

Technical Field

[0001] This utility model relates to the field of medical equipment technology, and in particular to a visual single-lumen bronchial catheter. Background Technology

[0002] Chinese patent application CN201220499389.5 discloses a single-lumen endotracheal tube. The endotracheal tube has graduations, a connecting tube at its rear end, and a tube cuff in the middle. The tube cuff is connected to a pressure display bulb and an inflation valve through a cuff tube. The front end of the endotracheal tube has a bronchial tube, which has a bronchial cuff. The bronchial cuff is connected to a pressure display bulb and an inflation valve through a cuff tube. The lumen of the bronchial tube contains an air bag, which is connected to a pressure display bulb and an inflation valve through an air bag tube. There is a side hole between the air bag and the tube cuff.

[0003] The single-lumen bronchial tube disclosed in the aforementioned patent is simple to manufacture and can not only achieve single-lumen ventilation, but also is less prone to airway damage due to its small outer diameter. However, this tube can only achieve single-lung ventilation on one side. If the patient undergoes bilateral lung surgery, this patented product cannot solve the problem of bilateral lung ventilation and cannot fully possess the functions of a traditional double-lumen bronchial tube.

[0004] Therefore, existing technologies still need to be improved and developed. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a visual single-lumen bronchial catheter in view of the above-mentioned defects of the prior art, which aims to solve the problem that the single-lumen bronchial catheter in the prior art cannot realize the separate ventilation of both lungs; that is, it aims to realize that the single-lumen bronchial catheter can fully realize the functions of left ventilation, right ventilation and dual-lumen ventilation of the dual-lumen bronchial catheter.

[0006] The technical solution adopted by this utility model to solve the technical problem is as follows:

[0007] A visual single-lumen bronchial catheter includes a catheter with an eccentrically positioned inner lumen. The catheter includes a main tracheal catheter and a secondary bronchial catheter, forming an angle between the main tracheal catheter and the secondary bronchial catheter. A first external cuff assembly is disposed on the main tracheal catheter, a second internal cuff assembly is disposed inside the secondary bronchial catheter, and a second external cuff assembly is disposed on the secondary bronchial catheter.

[0008] The main tracheal tube has a side hole located below the first external airbag assembly. The main tracheal tube has a fence surrounding the side hole, and a blocking airbag assembly is located inside the fence. The blocking airbag assembly is used to inflate and block the side hole, and to contract and expose the side hole.

[0009] Optionally, the fence includes a plurality of support rods, which are spaced apart on the main tracheal tube and surround the side hole, and are adapted to fit the outer wall of the main tracheal tube.

[0010] Optionally, the catheter is provided with an elastic channel extending through the side hole, and the occlusion airbag assembly includes:

[0011] An elastic sealing airbag is disposed inside the fence and located on one side of the side hole, for expanding to the other side to seal the side hole and contracting to expose the side hole;

[0012] An elastic inflation tube is disposed on the elastic channel, with one end of the elastic inflation tube extending out of the side hole and connected to the elastic sealing airbag;

[0013] An elastic inflatable bladder is disposed at the other end of the elastic inflatable tube and located outside the conduit;

[0014] A deflation valve is provided on the elastic inflatable bladder.

[0015] Optionally, the inner wall of the conduit is provided with a first external channel corresponding to the first external airbag assembly, a second internal channel corresponding to the second internal airbag assembly, and a second external channel corresponding to the second external airbag assembly.

[0016] Optionally, the first external airbag assembly includes a first external airbag, a first external trachea, and a first external inflation bag. The first external airbag is disposed outside the main trachea duct, and the first external trachea passes through the first external channel, with one end connected to the first external airbag and the other end connected to the first external inflation bag.

[0017] The second internal airbag assembly includes a second internal airbag, a second internal trachea, and a second internal inflation bag. The second internal airbag is disposed inside the accessory bronchus duct, and the second internal trachea passes through the second internal channel, with one end connected to the second internal airbag and the other end connected to the second internal inflation bag.

[0018] The second external airbag assembly includes a second external airbag, a second external trachea, and a second external inflation bag. The second external airbag is disposed outside the accessory bronchus duct, and the second external trachea passes through the second external channel, with one end connected to the second external airbag and the other end connected to the second external inflation bag.

[0019] Optionally, a camera assembly is provided on the inner wall of the conduit, and the camera assembly is located above the side hole.

[0020] Optionally, the camera assembly includes a camera channel disposed on the inner wall of the conduit and a view camera disposed in the camera channel facing the side hole, wherein the data cable of the view camera extends from inside the camera channel to outside the conduit.

[0021] Optionally, the inner wall of the conduit is provided with a flushing channel, and a flushing pipe is provided on the flushing channel. One end of each flushing pipe is connected to the camera channel, and the other end of each flushing pipe extends to the outside of the conduit and is connected to a flushing connector.

[0022] Optionally, the flushing connector is provided with a flushing cover.

[0023] Optionally, the main tracheal tube is provided with a first suction assembly, the first suction assembly including a first inlet and a first outlet, the first inlet being located above the side hole and extending through the peripheral wall of the main tracheal tube, and the first outlet being located outside the main tracheal tube; the accessory bronchial tube is provided with a second suction assembly, the second suction assembly including a second inlet and a second outlet, the second inlet being located in front of the second internal cuff assembly and extending through the inner wall of the accessory bronchial tube, and the second outlet being located outside the main tracheal tube.

[0024] Beneficial effects:

[0025] This invention provides a visual single-lumen bronchial catheter. The catheter features a main bronchial tube with a first external cuff assembly, allowing it to block the lumen of the main bronchus. When the second external cuff assembly is opened, the accessory bronchial tube can also block bronchial branches. A side hole is provided on the catheter, with a fence on the side hole and a blocking cuff assembly on the fence. When the blocking cuff assembly is opened to block the side hole, single-lumen ventilation on the right side of the accessory bronchial tube is achieved. When the blocking cuff assembly is closed to expose the side hole, dual-lumen ventilation is achieved between the side hole and the accessory bronchial tube. When the second internal cuff assembly inside the accessory bronchial tube is opened, single-lumen ventilation on the left side of the side hole is achieved. This device utilizes only one single-lumen catheter to achieve left-side, right-side, and dual-lumen ventilation functions. Attached Figure Description

[0026] Figure 1 This is a structural diagram of the visual single-lumen bronchial catheter of this utility model;

[0027] Figure 2 This is an internal structural diagram of the visual single-lumen bronchial catheter of this utility model;

[0028] Figure 3 yes Figure 2 An enlarged structural diagram at point A;

[0029] Figure 4This is a diagram of the tube wall structure of the main tracheal tube of this utility model;

[0030] Figure 5 This is a structural diagram of another embodiment of the visual single-lumen bronchial catheter of this utility model;

[0031] Figure 6 This is a diagram showing the tube wall structure of another embodiment of the main tracheal tube of this utility model.

[0032] In the picture:

[0033] 1. Tubes; 1-1. Main endotracheal tube; 1-2. Accessory bronchial tube; 2-1. First external endotracheal cuff; 2-2. First external endotracheal tube; 2-3. First external inflation cuff; 2-4. First external channel; 3. Side hole; 4. Barrier; 5-1. Second external endotracheal cuff; 5-2. Second external endotracheal tube; 5-3. Second external inflation cuff; 5-4. Second external channel; 6-1. Flexible occlusion cuff; 6-2. Flexible inflation tube; 6-3. Flexible inflation cuff; 6-4. Deflator; 6-5. Flexible channel; 7-1. Data cable; 7-2. 7-3. Video camera; 8-1. Flushing tube; 8-2. Flushing connector; 8-3. Flushing cover; 8-4. Flushing channel; 9-1. Second internal air tube; 9-2. Second internal airbag; 9-3. Second internal airbag; 9-4. Second internal channel; 10-1. First suction tube; 10-2. First connector; 10-3. First cover; 10-4. First suction channel; 11-1. Second suction tube; 11-2. Second connector; 11-3. Second cover; 11-4. Second suction channel. Detailed Implementation

[0034] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0035] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0036] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0037] Please see Figure 1 and Figure 2 As shown, this application provides a visual single-lumen bronchial catheter, including a catheter 1 with an eccentrically positioned inner lumen. The catheter 1 includes a main tracheal catheter 1-1 and a secondary bronchial catheter 1-2, forming an angle between the main tracheal catheter 1-1 and the secondary bronchial catheter 1-2. A first external cuff assembly is provided on the main tracheal catheter 1-1, and a second internal cuff assembly is provided inside the secondary bronchial catheter 1-2. A second external cuff assembly is also provided on the secondary bronchial catheter 1-2. The main tracheal catheter 1-1 has a side hole 3 located below the first external cuff assembly. A fence 4 is provided on the main tracheal catheter 1-1 to surround the side hole 3. A blocking cuff assembly is provided inside the fence 4. The blocking cuff assembly is used to inflate and block the side hole 3, and to contract and expose the side hole 3.

[0038] Specifically, the inner lumen of the catheter 1 in this application is offset, which facilitates the creation of various channels within the catheter wall. The catheter 1 is divided into a main tracheal catheter 1-1 and a secondary bronchial catheter 1-2. The main tracheal catheter 1-1 and the secondary bronchial catheter 1-2 form a certain angle, with the angle offset to the right. A first external cuff assembly is installed on the main tracheal catheter 1-1, allowing the main bronchus of the patient to be blocked. A second external cuff assembly is installed on the secondary bronchial catheter 1-2, allowing the secondary bronchus to be blocked. The bronchial tube 1-2 can block the branches of the patient's bronchus. When the occlusion cuff assembly is opened to block the side hole 3, it enables right-side single-lumen ventilation of the bronchial tube 1-2. When the occlusion cuff assembly is closed to expose the side hole 3, it enables dual-lumen ventilation of the side hole 3 and the bronchial tube 1-2. When the second inner cuff assembly inside the bronchial tube 1-2 is opened, it enables left-side single-lumen ventilation of the side hole 3. This device uses only one tube 1 to achieve the functions of left-side ventilation, right-side ventilation, and dual-lumen ventilation of the dual-lumen tube.

[0039] It should be noted that, in this embodiment, the side hole 3 is preferably square in shape, that is, the side hole 3 is provided at the junction of the main tracheal tube 1-1 and the accessory bronchial tube 1-2. The side hole 3 has a certain depth, so that the fence 4 on the side hole 3 is easier to install, achieving the purpose of easier assembly. It can be understood that the fence 4 is used to surround the side hole 3 to facilitate the installation of the sealing airbag assembly. The sealing airbag assembly is used to inflate and seal the side hole 3, and to retract and expose the side hole 3.

[0040] When using this device, opening the first external cuff assembly to block the patient's main bronchus and closing the side hole 3 of the occlusion cuff assembly creates a conduit 1 that forms a channel, enabling unidirectional ventilation of the accessory bronchial conduits 1-2, which inflates the patient's right lung, i.e., the right branch of the patient's main bronchus. Opening the first external cuff assembly to block the patient's main bronchus and closing the second internal cuff assembly to block the accessory bronchial conduits 1-2 again enables unidirectional ventilation of the side hole 3, which inflates the patient's left lung, i.e., the left branch of the patient's main bronchus. Opening the first external cuff assembly to block the patient's main bronchus and closing the occlusion cuff assembly enables bidirectional ventilation of the side hole 3 and accessory bronchial conduits 1-2, allowing simultaneous ventilation of both the patient's left and right lungs, i.e., simultaneously inflating the left and right branch of the patient's main bronchus. This device achieves the function of a dual-lumen tube using only one conduit 1, with a simple structure and minimal damage.

[0041] See Figure 2 and Figure 3 As shown, in another embodiment of this application, the fence 4 includes a plurality of support rods, which are spaced apart on the main tracheal conduit 1-1 and surround the side hole 3. The plurality of support rods are adapted to the outer wall of the main tracheal conduit 1-1.

[0042] Specifically, the fence 4 consists of several support rods arranged horizontally. The two ends of each support rod are fixed to the two outer walls of the side hole 3, and each support rod has a certain curvature. The curvature is adapted to the missing outer wall of the main tracheal tube 1-1, that is, the curvature of the support rod should not protrude from the outer wall of the main tracheal tube 1-1, which helps to reduce the space occupied by the fence 4 on the main tracheal tube 1-1. At the same time, since the side hole 3 has a certain depth and is square in shape, the length of each support rod is the same. The cooperation of several support rods with the side hole 3 can form a blocking space, which helps to reduce the cost and design difficulty of the support rods and facilitates manufacturing and production. Finally, the blocking airbag assembly is fixed to one side of the blocking space, for example, fixed to one side of the support rod or fixed to the wall of the side hole 3. In actual use, when gas is filled into the sealing airbag assembly, the sealing airbag assembly expands to the other side of the support rod. The sealing airbag assembly is restricted by several support rods, thus covering the entire side hole 3. When the air is released from the sealing airbag assembly, the sealing airbag assembly will shrink and expose the side hole 3, and the sealing airbag assembly will gradually return to its initial position.

[0043] See Figures 2 to 4 As shown, in another embodiment of this application, the conduit 1 is provided with an elastic channel 6-5 extending through the side hole 3. The sealing airbag assembly includes an elastic sealing airbag 6-1, an elastic inflation tube 6-2, an elastic inflation bladder 6-3, and a deflation valve 6-4. The elastic sealing airbag 6-1 is disposed within the fence 4 and located on one side of the side hole 3, used to expand to the other side to seal the side hole 3 and contract to expose the side hole 3. The elastic inflation tube 6-2 is disposed on the elastic channel 6-5, with one end of the elastic inflation tube 6-2 extending out of the side hole 3 and connected to the elastic sealing airbag 6-1. The elastic inflation bladder 6-3 is disposed at the other end of the elastic inflation tube 6-2 and located outside the conduit 1. The deflation valve 6-4 is disposed on the elastic inflation bladder 6-3.

[0044] like Figure 4 As shown, the inner lumen of catheter 1 is eccentrically positioned, forming four directional positions: upper, lower, left, and right. The inner wall thickness of catheter 1 in the left position is greater than that in the right position, while the upper and lower positions have symmetrical catheter thicknesses.

[0045] Specifically, the side hole 3 is located above the conduit 1, and the elastic channel 6-5 is also located on the inner wall of the main tracheal conduit 1-1 near the side hole 3, i.e., above the side hole 3. Then, an elastic inflation tube 6-2 is inserted through the elastic channel 6-5. One end of the elastic inflation tube 6-2 is connected to the elastic sealing airbag 6-1 at the side hole 3, and the other end extends to the outside of the conduit 1 and is connected to the elastic inflation airbag 6-3. Finally, a deflation valve 6-4 is installed on the elastic inflation airbag 6-3, so that the elastic inflation tube 6-2 in the elastic channel 6-5 can be easily connected to the elastic sealing airbag 6-1 at the side hole 3. Through the setting of the elastic inflation airbag 6-3 and the deflation valve 6-4, the elastic sealing airbag 6-1 can be quickly inflated and deflated, which facilitates the use of the elastic sealing airbag 6-1.

[0046] It should be noted that the elastic sealing airbag 6-1 can only expand to one side. In this embodiment, it means that the elastic sealing airbag 6-1 expands from left to right or from right to left on the conduit 1. Of course, it can also expand from top to bottom or from bottom to top, as long as it can block the side hole 3. The position of the elastic sealing airbag 6-1 inside the fence 4 can be set according to the usage scenario. It is worth noting that no matter which direction the elastic sealing airbag 6-1 expands, one side needs to be fixed inside the fence to prevent the elastic sealing airbag 6-1 from shaking easily when it contracts.

[0047] See Figure 4 As shown, in another embodiment of this application, the inner wall of the conduit 1 is provided with a first external channel 2-4 corresponding to the first external airbag assembly, a second internal channel 9-4 corresponding to the second internal airbag assembly, and a second external channel 5-4 corresponding to the second external airbag assembly.

[0048] Specifically, such as Figure 5 As shown, the lower right side of catheter 1, i.e., the lower right corner, is the first external channel 2-4; the right side of the inner wall of catheter 1, i.e., the right side, is the second external channel 5-4; and the lower part of catheter 1, i.e., the lower part, is the second internal channel 9-4. By rationally allocating the positions of each channel, conflicts can be avoided.

[0049] See Figures 2 to 4As shown, in another embodiment of this application, the first external airbag assembly includes a first external airbag 2-1, a first external trachea 2-2, and a first external inflation airbag 2-3. The first external airbag 2-1 is disposed outside the main trachea duct 1-1, and the first external trachea 2-2 passes through the first external channel 2-4, with one end connected to the first external airbag 2-1 and the other end connected to the first external inflation airbag 2-3. The second internal airbag assembly includes a second internal airbag 9-3, a second internal trachea 9-1, and a second internal inflation airbag 9-2. The second internal airbag 9-3 is disposed outside the main trachea duct 1-1. Inside the bronchial tube 1-2, the second internal trachea 9-1 passes through the second internal channel 9-4, with one end connected to the second internal airbag 9-3 and the other end connected to the second internal inflation bag 9-2; the second external airbag assembly includes a second external airbag 5-1, a second external trachea 5-2 and a second external inflation bag 5-3, the second external airbag 5-1 is disposed outside the accessory bronchial tube 1-2, the second external trachea 5-2 passes through the second external channel 5-4, with one end connected to the second external airbag 5-1 and the other end connected to the second external inflation bag 5-3.

[0050] Specifically, this embodiment discloses the structures of the first external airbag assembly, the second internal airbag assembly, and the second external airbag assembly. The first external airbag assembly includes a first external airbag 2-1, a first external trachea 2-2, and a first external inflation bag 2-3. By introducing gas into the first external trachea 2-2 through the first external inflation bag 2-3, the first external airbag 2-1 can be inflated, which is beneficial for blocking the patient's main bronchus. The second internal airbag assembly includes a second internal airbag 9-3, a second internal trachea 9-1, and a second internal inflation bag 9-2. By introducing gas into the second internal trachea 9-1 through the second internal inflation bag 9-2, the second internal airbag 9-3 can be inflated, which is beneficial for blocking the right-side channel within the catheter 1. The second external airbag assembly includes a second external airbag 5-1, a second external trachea 5-2, and a second external inflation bag 5-3. By introducing gas into the second external trachea 5-2 through the second external inflation bag 5-3, the second external airbag 5-1 can be inflated, which is beneficial for blocking the right branch trachea on the patient's main trachea.

[0051] See Figures 2 to 4 As shown, in another embodiment of this application, a camera assembly is provided on the inner wall of the conduit 1, and the camera assembly is located at the edge of the side hole 3.

[0052] Specifically, a camera assembly is installed on the inner wall of the catheter 1. The camera assembly can be used to observe the specific condition inside the patient's lungs. At the same time, it is located at the edge of the side hole 3 and above the accessory bronchial catheter 1-2. This allows not only the blockage of the side hole 3 to be seen, but also the curved accessory bronchial catheter 1-2.

[0053] It should be noted that the conduit 1 in this device is a transparent plastic conduit 1, and the elastic sealing airbag 6-1 of the sealing airbag assembly is also made of transparent plastic material, so as not to affect the observation effect of the camera assembly.

[0054] See Figures 2 to 4 As shown, in another embodiment of this application, the camera assembly includes a camera channel 7-3 disposed on the inner wall of the conduit 1 and a view camera 7-2 disposed on the camera channel 7-3 facing the side hole 3, wherein the data cable 7-1 of the view camera 7-2 extends from inside the camera channel 7-3 to outside the conduit 1.

[0055] Specifically, the camera channel 7-3 is located to the left of the duct 1. The video camera 7-2 is installed inside the camera channel 7-3, located at the edge of the side hole 3, and above the curved accessory bronchial duct 1-2. The video camera 7-2 is connected to a data cable 7-1, which is a USB data cable 7-1. This allows the video camera 7-2 to be connected to external devices, making it convenient to observe the occlusion cuff assembly of the side hole 3 and the condition inside the patient's main bronchus.

[0056] See Figures 2 to 4 As shown, in another embodiment of this application, a flushing channel 8-4 is provided on the inner wall of the conduit 1, and a flushing pipe 8-1 is provided on the flushing channel 8-4. One end of the flushing pipe 8-1 is connected to the camera channel 7-3, and the other end of the flushing pipe 8-1 extends to the outside of the conduit 1 and is connected to a flushing connector 8-2.

[0057] Specifically, in this application, a flushing channel 8-4 is installed on the inner wall of the conduit 1. The flushing channel 8-5 is located on one side of the camera channel 7-3, that is, the upper part of the left side. A flushing pipe 8-1 is installed in the flushing channel 8-4. One end of the flushing pipe 8-1 is connected to the left side of the installation position of the video camera 7-2 in the camera channel 7-3 (not shown in the figure). In this way, water from the flushing pipe 8-1 can be sprayed out from the left side of the video camera 7-2 for flushing. The other end of the flushing pipe 8-1 is connected to the flushing connector 8-2, so that clean water can be injected into the flushing pipe 8-1 through the flushing connector 8-2 to flush the video camera 7-2 and improve the clarity of the video camera 7-2.

[0058] See Figures 2 to 4 As shown, in another embodiment of this application, a flushing cover 8-3 is provided on the flushing connector 8-2.

[0059] Specifically, a flushing cover 8-3 is provided on the flushing connector 8-2. The flushing cover 8-3 is fastened to the flushing connector 8-2 using an existing plastic snap-fit ​​method, which is simple in structure and easy to use.

[0060] See Figure 2 As shown, in another embodiment of this application, the included angle ranges from 10° to 60°.

[0061] Specifically, the catheter 1 includes a main tracheal catheter 1-1 and a secondary bronchial catheter 1-2. The degree of bending of the main tracheal catheter 1-1 and the secondary bronchial catheter 1-2 can be set by the user within the range of 10°-60° according to actual needs. It can be understood that the bending of the catheter 1 generally only needs to be 20°.

[0062] Please see Figure 5 and Figure 6 As shown, in another embodiment of this application, the main tracheal tube 1-1 is provided with a first suction assembly, the first suction assembly including a first inlet and a first outlet, the first inlet being located above the side hole 3 and passing through the peripheral wall of the main tracheal tube 1-1, and the first outlet being located outside the main tracheal tube 1-1; the accessory bronchial tube 1-2 is provided with a second suction assembly, the second suction assembly including a second inlet and a second outlet, the second inlet being located in front of the second internal airbag assembly and passing through the inner wall of the accessory bronchial tube 1-2, and the second outlet being located outside the main tracheal tube 1-1.

[0063] Specifically, such as Figure 5 and Figure 6 As shown, a first suction channel 10-4 is provided on the peripheral wall of the main tracheal tube 1-1. The first suction channel 10-4 is located on the upper left side. The first suction assembly includes a first suction tube 10-1, a first connector 10-2, and a first cap 10-3. The first suction tube 10-1 is inserted through the first suction channel 10-4 of the main tracheal tube 1-1. The first suction tube 10-1 includes a first inlet and a first outlet. The first inlet is located above the side hole 3, and the first outlet is located outside the main tracheal tube 1-1. The first connector 10-2 is installed at the first outlet of the first suction tube 10-1. The first cap 10-3 is hinged to the first connector 10-2. By opening the first cap 10-3, the residual gas in the patient's left lung can be quickly extracted using the suction device, thereby enabling the simultaneous input of gas into the patient's right lung and extraction of residual gas from the left lung.

[0064] Similarly, the main endotracheal tube 1-1 and the accessory bronchial tube 1-2 are provided with a second suction channel 11-4 on their peripheral walls, i.e., located on the lower right side. The second suction assembly includes a second suction tube 11-1, a second connector 11-2, and a second cap 11-3. The second suction tube 11-1 is inserted through the second suction channel 11-4. The second suction tube 11-1 includes a second inlet and a second outlet. The second inlet is located in front of the second inner cuff assembly, so that the second inner cuff assembly 9-3 can close the accessory bronchial tube 1-2 without affecting the second suction assembly. The second outlet is located outside the main endotracheal tube 1-1. The second connector 11-2 is located at the second outlet of the second suction tube 11-1. The second cap 11-3 is hinged to the second connector 11-2. By opening the second cap 11-3, the residual gas in the patient's right lung can be quickly extracted using the suction device, thereby enabling the simultaneous extraction of residual gas on the right side while introducing gas into the patient's left lung.

[0065] In summary, this utility model provides a visual single-lumen bronchial catheter. By configuring the catheter, a first external cuff assembly is installed in the main bronchial tube, allowing the catheter to block the lumen of the main bronchus. A second external cuff assembly is installed in the secondary bronchial tube; opening the second external cuff assembly allows the secondary bronchial tube to block bronchial branches. A side hole is provided in the catheter, a fence is installed in the side hole, and a blocking cuff assembly is installed on the fence. A second internal cuff assembly is installed inside the secondary bronchial tube. When the blocking cuff assembly is opened to block the side hole, the secondary bronchial tube can achieve [the desired effect]. The bronchial tube provides single-lumen ventilation on the right side. When the occlusion cuff assembly is closed and the side hole is exposed, it enables dual-lumen ventilation via the side hole and the accessory bronchial tube. When the second inner cuff assembly inside the accessory bronchial tube is opened, it enables single-lumen ventilation on the left side via the side hole. This device can achieve dual-lumen ventilation (left-side, right-side, and dual-lumen ventilation) using only one single-lumen tube. The included camera assembly also provides visualization capabilities. A flushing tube allows for rinsing of the camera assembly, making its use clearer and more reliable.

[0066] It should be understood that the application of this utility model is not limited to the examples above. Those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A visual single-lumen bronchial catheter, characterized in that, The device includes a catheter with an eccentrically positioned inner lumen. The catheter includes a main tracheal catheter and a secondary bronchial catheter, forming an angle between the main tracheal catheter and the secondary bronchial catheter. A first external cuff assembly is provided on the main tracheal catheter, a second internal cuff assembly is provided inside the secondary bronchial catheter, and a second external cuff assembly is provided on the secondary bronchial catheter. The main tracheal tube has a side hole located below the first external airbag assembly. The main tracheal tube has a fence surrounding the side hole, and a blocking airbag assembly is located inside the fence. The blocking airbag assembly is used to inflate and block the side hole, and to contract and expose the side hole.

2. The visual single-lumen bronchial catheter according to claim 1, characterized in that, The fence includes several support rods, which are spaced apart on the main tracheal tube and surround the side hole. The support rods are adapted to fit the outer wall of the main tracheal tube.

3. The visual single-lumen bronchial catheter according to claim 1, characterized in that, The catheter is provided with an elastic channel extending through the side hole, and the occlusion airbag assembly includes: An elastic sealing airbag is disposed inside the fence and located on one side of the side hole, for expanding to the other side to seal the side hole and contracting to expose the side hole; An elastic inflation tube is disposed on the elastic channel, with one end of the elastic inflation tube extending out of the side hole and connected to the elastic sealing airbag; An elastic inflatable bladder is disposed at the other end of the elastic inflatable tube and located outside the conduit; A deflation valve is provided on the elastic inflatable bladder.

4. The visual single-lumen bronchial catheter according to claim 1, characterized in that, The inner wall of the conduit is provided with a first external channel corresponding to the first external airbag assembly, a second internal channel corresponding to the second internal airbag assembly, and a second external channel corresponding to the second external airbag assembly.

5. A visual single-lumen bronchial catheter according to claim 4, characterized in that... ； The first external airbag assembly includes a first external airbag, a first external trachea, and a first external inflation bag. The first external airbag is disposed outside the main trachea duct, and the first external trachea passes through the first external channel, with one end connected to the first external airbag and the other end connected to the first external inflation bag. The second internal airbag assembly includes a second internal airbag, a second internal trachea, and a second internal inflation bag. The second internal airbag is disposed inside the accessory bronchus duct, and the second internal trachea passes through the second internal channel, with one end connected to the second internal airbag and the other end connected to the second internal inflation bag. The second external airbag assembly includes a second external airbag, a second external trachea, and a second external inflation bag. The second external airbag is disposed outside the accessory bronchus duct, and the second external trachea passes through the second external channel, with one end connected to the second external airbag and the other end connected to the second external inflation bag.

6. A visual single-lumen bronchial catheter according to claim 1, characterized in that, A camera assembly is provided on the inner wall of the conduit, and the camera assembly is located at the edge of the side hole.

7. A visual single-lumen bronchial catheter according to claim 6, characterized in that, The camera assembly includes a camera channel disposed on the inner wall of the conduit and a view camera disposed on the camera channel facing the side hole, wherein the data cable of the view camera extends from inside the camera channel to outside the conduit.

8. A visual single-lumen bronchial catheter according to claim 7, characterized in that, The inner wall of the conduit is provided with a flushing channel, and a flushing pipe is provided on the flushing channel. One end of the flushing pipe is connected to the camera channel, and the other end of the flushing pipe extends to the outside of the conduit and is connected to a flushing connector.

9. A visual single-lumen bronchial catheter according to claim 8, characterized in that, The flushing connector is equipped with a flushing cover.

10. A visual single-lumen bronchial catheter according to claim 1, characterized in that, The main tracheal tube is provided with a first suction assembly, which includes a first inlet and a first outlet. The first inlet is located above the side hole and extends through the peripheral wall of the main tracheal tube, while the first outlet is located on the outside of the main tracheal tube. The accessory bronchial tube is provided with a second suction assembly, which includes a second inlet and a second outlet. The second inlet is located in front of the second internal airbag assembly and extends through the inner wall of the accessory bronchial tube, while the second outlet is located on the outside of the main tracheal tube.

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