Visual three-cavity nasal gastrointestinal tube kit

Abstract

The embodiment of the invention provides a visual three-cavity nasal gastrointestinal tube kit. The visual three-cavity nasal gastrointestinal tube kit comprises a catheter, a balloon and a camera shooting assembly. The catheter is provided with an intestinal tube section and a stomach tube section, a supply opening is formed in the intestinal tube section, a suction opening is formed in the stomach tube section, a supply cavity channel, a suction cavity channel and an air inlet cavity channel are formed in the catheter, the suction cavity channel is formed in the stomach tube section and communicated with the suction opening, the supply cavity channel is communicated with the supply opening, and the balloon is arranged on the catheter in a sleeving mode and communicated with the air inlet cavity channel. The camera shooting assembly comprises a camera and a wire, the camera is arranged at the end, away from the stomach tube section, of the intestinal tube section, the wire is arranged on the outer surface of the catheter and fixed to the catheter, the wire extends along the catheter, and one end of the wire is connected to the camera. The visual three-cavity nasal gastrointestinal tube kit can be inserted into the stomach and the intestinal tract through the nasal cavity and extend to the stomach and the intestinal tract, nutrient solution or medicine can be conveyed into the intestinal tract through the supply port, body functions are helped to be maintained, rehabilitation is promoted, reflux substances in the stomach can be sucked through the suction port, stomach stimulation is avoided, and the reflux risk is reduced.

Description

Technical Field

[0001] This application relates to the field of medical device technology, specifically to a visualized three-cavity nasal gastrointestinal tube kit. Background Technology

[0002] Among the related technologies, a medical tubing assembly is provided that can be inserted through the nasal cavity and extended into the stomach or intestines. It can be used to provide nutritional support, gastrointestinal decompression, drug delivery, and monitoring of gastrointestinal function. It is suitable for patients who are unable to eat independently, have gastrointestinal obstruction, or require long-term nutritional therapy, helping to maintain bodily functions and promote recovery.

[0003] For patients with dysphagia (such as those with stroke or coma) or after gastrointestinal surgery, the tubing assembly can directly deliver nutrient solutions or liquid foods to the stomach or small intestine, ensuring the intake of calories, protein, and trace elements and avoiding malnutrition caused by prolonged fasting. The main function of the tubing assembly is to bypass the stomach and deliver nutrient solutions directly to the small intestine.

[0004] In related techniques, the tip of the flexible tube assembly is located in the duodenum or jejunum, making it impossible to effectively access refluxed gastric contents. If refluxed gastric contents need to be treated, a nasogastric tube is usually required, with its tip placed inside the stomach to suction out the gastric contents through negative pressure, which increases the difficulty of the procedure.

[0005] Furthermore, traditional catheters are typically inserted blindly or guided by X-rays or endoscopes. The success rate of blind insertion is limited by the operator's experience, requiring repeated adjustments to the catheter position, which is time-consuming and may delay nutritional support. Guidance using traditional X-rays or endoscopes relies on external equipment, increasing the risk of radiation exposure and transport risks for patients, making it particularly unsuitable for sensitive populations such as children and pregnant women.

[0006] In view of the above, this application is hereby submitted. Summary of the Invention

[0007] To address one of the aforementioned technical deficiencies, this application provides a visual three-cavity nasal gastrointestinal tube kit.

[0008] The present invention adopts the following technical solution:

[0009] A visualized three-lumen nasal gastrointestinal tube kit, comprising:

[0010] The catheter has an intestinal segment and a gastric segment connected together. A supply port is provided on the intestinal segment, and a suction port is provided on the gastric segment. The catheter contains a supply cavity, a suction cavity, and an air inlet cavity. The suction cavity and the supply cavity are isolated from each other. The suction cavity is located in the gastric segment and is connected to the suction port. The supply cavity extends from the gastric segment to the intestinal segment and is connected to the supply port.

[0011] A balloon, which is fitted onto the catheter and is connected to the air intake channel;

[0012] A camera assembly, comprising a camera and a wire, wherein the camera is disposed at one end of the intestinal segment opposite to the gastric segment, the wire is disposed on the outer surface of the catheter and fixed to the catheter, the wire extends along the catheter and one end is connected to the camera.

[0013] Optionally, the conduit is a one-piece molded part;

[0014] The gastric tube segment includes an outer tube and an inner septum;

[0015] The inner spacer is located inside the outer tube and is connected to opposite sides of the inner wall of the outer tube.

[0016] The inner partition divides the interior of the outer tube into the suction cavity and part of the supply cavity.

[0017] Optionally, one side of the inner partition bar is connected to the outer tube via a thickened section, and the air intake passage is provided on the thickened section;

[0018] The inner diameter of the air intake channel is smaller than the inner diameter of the suction channel and the supply channel.

[0019] Optionally, the balloon is disposed on the side of the gastric tube segment near the intestinal segment;

[0020] The suction port is located on the side of the balloon opposite to the intestinal segment.

[0021] Optionally, the visualized three-lumen nasal gastrointestinal tube kit includes multiple suction ports, each of which is arranged sequentially at intervals along the length of the gastric tube segment.

[0022] Optionally, the outer diameter of the intestinal segment is smaller than that of the gastric segment;

[0023] The intestinal segment and the gastric segment are connected by a transition section;

[0024] In the direction from the intestinal segment to the gastric segment, the outer diameter of the transition segment gradually increases.

[0025] Optionally, the outer wall of the conduit is provided with a lead wire groove, which extends along the length of the conduit;

[0026] The camera component's wires are embedded in the lead groove.

[0027] Optionally, the visualized three-lumen nasal gastrointestinal tube kit includes an end shell;

[0028] The end of the gastric tube segment that is away from the intestinal tube segment is connected to the end shell;

[0029] The outer surface of the end shell is provided with a groove, and the end shell is provided with an air inlet connector, a suction connector and a supply connector. The air inlet connector is connected to the air inlet channel, the suction connector is connected to the suction channel, and the supply connector is connected to the supply channel.

[0030] The camera component's wires are embedded in the slot, with the ends of the wires extending out of the end housing and connected to a camera data connector.

[0031] Optionally, the supply port is provided on the side wall of the intestinal segment near the camera.

[0032] Optionally, the visualization three-lumen nasal gastrointestinal tube kit includes a guidewire assembly;

[0033] The guidewire assembly includes an operating handle and a guidewire body connected to the operating handle;

[0034] The operating handle is disposed at one end of the guide wire body, and the operating handle and the guide wire body are in a transmission cooperation to drive the end of the guide wire body to bend and deform.

[0035] The guidewire body can be inserted into the supply cavity.

[0036] By adopting the above technical solution, this application has the following beneficial effects:

[0037] The visual three-cavity nasal gastrointestinal tube kit of this application can be inserted through the nasal cavity and extended to the stomach and intestines. Nutrients or drugs can be delivered into the intestines through the supply port to help maintain bodily functions and promote recovery. The suction port can remove refluxed material from the stomach to avoid stomach irritation and reduce the risk of reflux.

[0038] This application utilizes a camera at the end of the catheter to transmit real-time images of the intestinal tract, helping doctors to visually observe the catheter's path and accurately locate the target position in the intestine. Traditional X-ray or endoscopic guidance relies on external equipment, while this application, by embedding a camera in the catheter, can directly display the contact between the catheter tip and the intestinal wall, reducing the risk of misinsertion. Attached Figure Description

[0039] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0040] Figure 1 This illustration shows a schematic diagram of the structure of a visualized three-cavity nasal gastrointestinal tube kit provided in an embodiment of this application;

[0041] Figure 2 Show Figure 1 Enlarged view of section A in the middle;

[0042] Figure 3 Show Figure 1 Enlarged view of section B in the middle;

[0043] Figure 4 A cross-sectional view of the gastric tube segment of the visualized three-lumen nasal gastrointestinal tube kit provided in the embodiments of this application is shown;

[0044] Figure 5 This diagram illustrates a partial structural schematic of the visualized three-cavity nasal gastrointestinal tube kit provided in an embodiment of this application.

[0045] In the diagram: 1. Catheter; 11. Intestinal segment; 111. Supply port; 12. Gastric segment; 121. Outer tube; 122. Inner septum; 1221. Thickened section; 123. Suction port; 1a. Supply cavity; 1b. Suction cavity; 1c. Air inlet cavity; 1d. Lead wire groove; 13. Transition section; 2. Balloon; 3. Camera assembly; 31. Camera; 32. Lead wire; 33. Camera data connector; 4. End shell; 41. Groove; 42. Air inlet connector; 43. Suction connector; 44. Supply connector; 5. Guide wire assembly; 51. Operating handle. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0047] In the description of this invention, it should be noted that the terms "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0048] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" 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. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0049] like Figures 1 to 5As shown in the illustration, this application provides a visualization three-lumen nasal gastrointestinal tube kit, including: a catheter 1, a balloon 2, and a camera assembly 3. The catheter 1 has an intestinal segment 11 and a gastric segment 12, which are connected. A supply port 111 is provided on the intestinal segment 11, and a suction port 123 is provided on the gastric segment 12. The catheter 1 contains a supply cavity 1a, a suction cavity 1b, and an air inlet cavity 1c. The suction cavity 1b is isolated from the supply cavity 1a. The suction cavity 1b is located on the gastric segment 12 and communicates with the suction port 123. The supply cavity 1a extends from the gastric segment 12 to the intestinal segment 11 and communicates with the supply port 111. The balloon 2 is fitted onto the catheter 1, and the balloon 2 is connected to the air inlet cavity 1c. The camera assembly 3 includes a camera 31 and a wire 32. The camera 31 is disposed at one end of the intestinal segment 11 away from the gastric segment 12. The wire 32 is disposed on the outer surface of the catheter 1 and fixed to the catheter 1. The wire 32 extends along the catheter 1 and one end is connected to the camera 31.

[0050] The catheter 1 of this application has a supply cavity 1a, which is isolated from the suction cavity 1b, thus solving the problem of cross-infection in clinical practice. The visualized three-lumen nasogastric tube kit of this application can be inserted through the nasal cavity and extended to the stomach and intestines. Nutrients or drugs can be delivered into the intestines through the supply port 111 to help maintain bodily functions and promote recovery. The suction port 123 can aspirate refluxed gastric material, avoiding gastric irritation and reducing the risk of reflux.

[0051] During catheter placement, after passing through the pylorus, a medium (liquid or gas) can be injected into balloon 2 to inflate it and prevent it from exiting the pylorus. The design of balloon 2 facilitates the insertion of catheter 1 into the duodenum or jejunum.

[0052] This application, by installing a camera 31 at the end of the catheter 1, can transmit intestinal images in real time, helping doctors to intuitively observe the path of the catheter 1 and accurately locate the target position in the intestine. Traditional X-ray or endoscopic guidance requires external equipment, while this application, by embedding a camera 31 in the catheter 1, can directly display the contact between the tip of the catheter 1 and the intestinal wall, reducing the risk of misinsertion.

[0053] In some possible implementations, the catheter 1 is a one-piece molded part, and the gastric tube segment 12 includes an outer tube 121 and an inner septum 122. The inner septum 122 is located inside the outer tube 121 and is respectively connected to opposite sides of the inner wall of the outer tube 121. The inner septum 122 divides the interior of the outer tube 121 to form the suction cavity 1b and part of the supply cavity 1a.

[0054] The cross-sections of the suction cavity 1b and the supply cavity 1a are approximately equal, meaning they roughly bisect the internal cross-section of the catheter 1. The visualized three-lumen nasogastric tube kit also includes a guidewire assembly 5 (described in detail below). Because the supply cavity 1a has a large extension length, the guidewire assembly 5 is inserted into the supply cavity 1a. The guidewire assembly 5 can adjust the bending direction of the guidewire end, facilitating catheter placement.

[0055] The visualized three-lumen nasal gastrointestinal tube kit also includes a supply connector 44, a suction connector 43, and an air inlet connector 42. The supply connector 44 is connected to the catheter 1 and communicates with the supply cavity 1a. The supply connector 44 is used to connect to a drug delivery or nutrient solution device to inject nutrient solution or medication into the patient's intestines. The suction connector 43 is connected to the catheter 1 and communicates with the suction cavity 1b. The suction connector 43 can be used to connect to a negative pressure device to aspirate refluxed material from the patient's stomach to relieve symptoms. The air inlet connector 42 is connected to the catheter 1 and communicates with the air inlet cavity 1c, used to inflate the balloon 2 with air, causing the balloon 2 to expand.

[0056] The catheter 1 of this application is not formed by nesting inner and outer tubes 121. The catheter 1 of this application can be an integrally molded part formed by injection molding, with suction cavity 1b and supply cavity 1a formed on the left and right sides of the interior, respectively. The manufacturing process is simple, the structure is strong, it is not easy to have leakage problems, and it has good durability.

[0057] In some possible implementations, one side of the inner septum 122 is connected to the outer tube 121 via a thickened section 1221. The thickened section 1221 is provided with the air inlet channel 1c, the inner diameter of which is smaller than the inner diameter of the suction channel 1b and the supply channel 1a. Most of the space within the gastric tube segment 12 of the catheter 1 is used to form the suction channel 1b and the supply channel 1a. To provide a smaller air inlet channel 1c, a local solid portion within the catheter 1 can be thickened to form the thickened section 1221. The air inlet channel 1c has a small aperture and can be located on the thickened section 1221. The air inlet channel 1c is isolated from both the suction channel 1b and the supply channel 1a. For example, at the location where the outer tube 121 and the inner spacer 122 connect, the solid structure is relatively large and can be appropriately thickened to form a thickened section 1221, which facilitates the installation of the air intake channel 1c. This structural design also helps to strengthen the structural strength of the transition part between the outer tube 121 and the inner spacer 122, improving the durability of the duct 1. Furthermore, the design structure of the air intake channel 1c is simple and does not affect the arrangement of the suction channel 1b and the supply channel 1a.

[0058] In some possible implementations, the balloon 2 is positioned on the side of the gastric tube segment 12 near the intestinal segment 11, and the suction port 123 is positioned on the side of the balloon 2 opposite to the intestinal segment 11. The visualized three-lumen nasal gastrointestinal tube kit includes multiple suction ports 123, which are spaced apart sequentially along the length of the gastric tube segment 12. The multiple suction ports 123 facilitate rapid drainage of refluxed material from the stomach, preventing complications caused by refluxed foreign bodies.

[0059] In some possible implementations, the outer diameter of the intestinal segment 11 is smaller than that of the gastric segment 12. The intestinal segment 11 and the gastric segment 12 are connected by a transition segment 13, the outer diameter of which gradually increases in the direction from the intestinal segment 11 to the gastric segment 12. The intestinal segment 11 and the gastric segment 12 transition smoothly through the transition segment 13, avoiding the formation of obvious edges between them and improving comfort during the insertion process.

[0060] In some possible implementations, such as Figure 4 As shown, the outer wall of the conduit 1 is provided with a lead wire groove 1d, which extends along the length of the conduit 1, and the wire 32 of the camera component 3 is embedded in the lead wire groove 1d.

[0061] The wire 32 is directly fixed to the conduit 1. One end of the wire 32 is connected to the camera 31, and the other end of the wire 32 is connected to the camera data connector 33. The camera 31 can be bonded to the end of the conduit 1 with liquid silicone. Afterwards, the camera 31 and the conduit 1 can be heat-fused together using the same material (such as the same material as the conduit 1) through high-temperature treatment, so that the camera 31 and the conduit 1 have an integrated appearance.

[0062] In this embodiment, a lead groove 1d is formed on the outer wall of the conduit 1. The lead groove 1d is an open structure, and its inner diameter roughly matches the outer diameter of the wire 32 of the camera assembly 3. The lead groove 1d is exposed, allowing the wire 32 to be embedded within it during camera assembly. The wire 32 can be bonded to the inner wall of the lead groove 1d using an adhesive. The adhesive fills the gap between the wire 32 and the lead groove 1d, ensuring a smooth transition between the outer surface of the wire 32 and the outer surface of the conduit 1, avoiding sharp edges. The adhesive can be liquid silicone. Embedding the wire 32 in the lead groove 1d on the outer wall of the conduit 1, rather than placing it inside the conduit 1, helps reduce the cross-sectional dimensions of the conduit 1.

[0063] In some possible implementations, the visualization three-lumen nasal gastrointestinal tube kit includes an end shell 4, with one end of the gastric tube segment 12 opposite to the intestinal tube segment 11 connected to the end shell 4. A groove 41 is formed on the outer surface of the end shell 4. An air inlet connector 42, a suction connector 43, and a supply connector 44 are provided on the end shell 4. The air inlet connector 42 is connected to the air inlet cavity 1c, the suction connector 43 is connected to the suction cavity 1b, and the supply connector 44 is connected to the supply cavity 1a. The wire 32 of the camera assembly 3 is embedded in the groove 41, and the end of the wire 32 extends out of the end shell 4 and is connected to a camera data connector 33.

[0064] like Figure 5 As shown, a groove 41 is formed on the surface of the end shell 4, and the groove 41 extends along the extension direction of the conduit 1. By forming a strip-shaped groove 41 on the surface of the end shell 4, the wire 32, which is separated from the conduit 1, can be embedded in the groove 41, allowing the wire 32 to smoothly extend out of the end shell 4, and its end to connect to the camera data connector 33. The camera data connector 33 can be a Type-C interface or a USB interface; this application does not limit the specific type of the camera data connector 33. The wire 32 can be bonded to the strip-shaped groove 41 with adhesive. The groove 41 is a strip-shaped groove exposed on the surface of the end shell 4, and its structural design facilitates the rapid assembly of the wire 32.

[0065] In some possible implementations, such as Figure 2 As shown, the supply port 111 is opened on the side wall of the intestinal segment 11 near the camera 31. By setting the camera 31 at the end of the catheter 1 and placing the supply port 111 near the camera 31, when nutrient solution or medicine is injected into the intestine through the supply port 111, the changes in the substances in the intestine can be observed with the help of the camera 31, which makes it easier for doctors to grasp the patient's condition.

[0066] In some possible implementations, the visualized three-lumen nasal gastrointestinal tube kit includes a guidewire assembly 5, which includes an operating handle 51 and a guidewire body connected to the operating handle 51. The operating handle 51 is disposed at one end of the guidewire body, and the operating handle 51 and the guidewire body are in a driving engagement to drive the end of the guidewire body to bend and deform, so that the guidewire body can be inserted into the supply cavity 1a.

[0067] The guidewire assembly 5 of this application directly adopts existing technology, and its structural principle is similar to that of a gastrointestinal endoscope. The bending deformation of the end can be adjusted using the operating handle 51. However, the outer diameter of the guidewire assembly 5 in this application is smaller, much smaller than that of a gastrointestinal endoscope, allowing it to be inserted into the supply cavity 1a, so that the end of the guidewire body is located at or near the end of the supply cavity 1a. With the help of the camera 31 and screen feedback, the doctor can instantly adjust the bending deformation direction of the end of the guidewire body, that is, adjust the bending angle of the end of the catheter 1, achieving precise insertion and avoiding mechanical damage to the fragile intestinal wall, especially suitable for tortuous or severely adhered small intestinal segments. The visualization technology of the guidewire assembly 5 and the camera 31 reduces repeated attempts, shortens insertion time, improves medical efficiency, reduces patient treatment time, and the precise operation reduces nausea and vomiting caused by repeated insertion, significantly improving patient tolerance. The intestinal obstruction catheter 1 kit with its built-in camera 31 and adjustable guidewire assembly 5 achieves a leap from "blind operation" to "visualized precision treatment" through "eye-hand synchronization" technology, making it particularly suitable for complex or high-risk cases. In this application, the guide wire assembly 5 can be a mature product provided in the prior art. This application does not need to improve its structure. It only needs to have an outer diameter smaller than the inner diameter of the supply cavity 1a of this application.

[0068] The guidewire assembly 5 can move 360 ​​degrees. By operating the operating handle 51, the bending direction of the catheter 1 can be adjusted to quickly resolve problems such as the tip of the catheter 1 getting stuck at the pylorus, intestinal mucosal folds, or small intestinal loops.

[0069] It should be noted that the length of the guidewire body can be limited to no more than the length of the suction cavity 1b, so that the end of the guidewire body will not protrude from the supply cavity 1a after being inserted into the supply cavity 1a, that is, it will not come into contact with the patient's intestinal wall, thus improving safety.

[0070] In some possible implementations, the visualization three-lumen nasal gastrointestinal tube kit includes a sensor assembly whose sensors are located at the end of the catheter 1 opposite to the suction connector 43, i.e., the sensors of the sensor assembly are located at the front end of the catheter 1 but behind the camera 31. The sensors of the sensor assembly may include temperature sensors and pressure sensors.

[0071] By incorporating pressure sensors, pressure changes in corresponding areas of the intestine can be monitored in real time, helping doctors assess intestinal function and adjust treatment plans. Monitoring data can prevent complications (such as intestinal perforation), ensuring safe and effective treatment and improving diagnostic and treatment accuracy. Temperature sensors detect changes in intestinal temperature, indirectly reflecting intestinal blood supply and peristalsis. Combined analysis of pressure data can determine whether the intestine has regained patency or if other pathological changes exist. Sensor data provides a basis for clinical decisions, such as adjusting drainage rate and nutrient solution ratio, avoiding abdominal pain or tissue damage caused by sudden pressure changes, and promoting rapid patient recovery. The pressure and temperature sensors can be integrated to reduce size and fully utilize the space of catheter 1. For example, a groove can be provided on the end face of catheter 1, housing both the pressure and temperature sensors. The groove needs to be staggered from the supply port 111 and camera 31, thus making full use of the limited space at the end of catheter 1.

[0072] A lead-wire cavity with a small inner diameter can be provided inside the conduit 1. The sensor assembly also includes a cable, which can be threaded through the lead-wire cavity, with one end connected to the sensor assembly and the other end extending out of the conduit 11 and connected to a sensor data connector. The lead-wire cavity can be provided on the thickened section 1221.

[0073] In some possible implementations, catheter 1, balloon 2, and all connectors can be made of antibacterial silicone and / or antibacterial polyurethane materials, which have excellent antibacterial effects and provide sustained antibacterial activity from day 1 to day 30. The main antibacterial species are Escherichia coli and Staphylococcus aureus, with an antibacterial effect of over 99%.

[0074] The intestinal obstruction catheter kit provided in this application embodiment has a camera 31, a temperature sensor, and a pressure sensor. It supports full-process visual monitoring of intestinal changes to avoid complications such as perforation, while continuously monitoring intestinal pressure and temperature to provide clinical evidence on the effectiveness of clinical treatment. This is conducive to accurately, safely, and quickly solving intestinal problems and improving the accuracy of diagnosis and treatment.

[0075] The foregoing disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described above. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0076] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0077] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A visual three-cavity nasal gastrointestinal tube kit, characterized in that, include: The catheter has an intestinal segment and a gastric segment connected together. A supply port is provided on the intestinal segment, and a suction port is provided on the gastric segment. The catheter contains a supply cavity, a suction cavity, and an air inlet cavity. The suction cavity and the supply cavity are isolated from each other. The suction cavity is located in the gastric segment and is connected to the suction port. The supply cavity extends from the gastric segment to the intestinal segment and is connected to the supply port. A balloon, which is fitted onto the catheter and is connected to the air intake channel; A camera assembly, comprising a camera and a wire, wherein the camera is disposed at one end of the intestinal segment opposite to the gastric segment, the wire is disposed on the outer surface of the catheter and fixed to the catheter, the wire extends along the catheter and one end is connected to the camera.

2. The visualized three-cavity nasal gastrointestinal tube kit according to claim 1, characterized in that, The catheter is a one-piece molded component; The gastric tube segment includes an outer tube and an inner septum; The inner spacer is located inside the outer tube and is connected to opposite sides of the inner wall of the outer tube. The inner partition divides the interior of the outer tube into the suction cavity and part of the supply cavity.

3. The visualized three-cavity nasal gastrointestinal tube kit according to claim 2, characterized in that, One side of the inner partition bar is connected to the outer tube via a thickened section, and the air intake passage is provided on the thickened section. The inner diameter of the air intake channel is smaller than the inner diameter of the suction channel and the supply channel.

4. The visualized three-cavity nasal gastrointestinal tube kit according to claim 1, characterized in that, The balloon is positioned on the side of the gastric tube segment close to the intestinal segment; The suction port is located on the side of the balloon opposite to the intestinal segment.

5. The visualized three-cavity nasal gastrointestinal tube kit according to claim 4, characterized in that, It includes multiple suction ports, each of which is arranged at intervals along the length of the gastric tube segment.

6. The visualized three-cavity nasal gastrointestinal tube kit according to claim 1, characterized in that, The outer diameter of the intestinal segment is smaller than that of the gastric segment; The intestinal segment and the gastric segment are connected by a transition section; In the direction from the intestinal segment to the gastric segment, the outer diameter of the transition segment gradually increases.

7. The visualized three-cavity nasal gastrointestinal tube kit according to claim 1, characterized in that, The outer wall of the conduit is provided with a lead wire groove, which extends along the length of the conduit. The camera component's wires are embedded in the lead groove.

8. The visualized three-cavity nasal gastrointestinal tube kit according to claim 1, characterized in that, Including end shells; The end of the gastric tube segment that is away from the intestinal tube segment is connected to the end shell; The outer surface of the end shell is provided with a groove, and the end shell is provided with an air inlet connector, a suction connector and a supply connector. The air inlet connector is connected to the air inlet channel, the suction connector is connected to the suction channel, and the supply connector is connected to the supply channel. The camera component's wires are embedded in the slot, with the ends of the wires extending out of the end housing and connected to a camera data connector.

9. The visualized three-cavity nasal gastrointestinal tube kit according to claim 1, characterized in that, The supply port is opened on the side wall of the intestinal segment near the camera.

10. The visualized three-lumen nasal gastrointestinal tube kit according to any one of claims 1-9, characterized in that, Including guidewire assembly; The guidewire assembly includes an operating handle and a guidewire body connected to the operating handle; The operating handle is disposed at one end of the guide wire body, and the operating handle and the guide wire body are in a transmission cooperation to drive the end of the guide wire body to bend and deform. The guidewire body can be inserted into the supply cavity.

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