Gastrointestinal tube with enhanced corrosion resistance

Abstract

The invention relates to the technical field of gastrointestinal tubes, in particular to a corrosion-resistant enhanced gastrointestinal tube which comprises a main intestinal tube, an outer sleeve is arranged on the outer side of the main intestinal tube, and a mounting ring is arranged between the main intestinal tube and the outer sleeve for connection. The end, away from the mounting ring, of the outer sleeve is provided with a butt joint pipe, the butt joint pipe is matched with the main intestinal tube, and a plurality of adjusting assemblies are arranged in the main intestinal tube. A double-layer structure composed of the main intestinal tube and the outer sleeve is constructed, multiple fusion of a conveying function, electromagnetic regulation and control and structure protection in a gastrointestinal path is achieved in combination with the multi-section adjusting assembly and the modular connecting ring piece, the outer sleeve is arranged on the outer side of the main intestinal tube, and accurate butt joint is conducted through the mounting ring; and good operation convenience and structural stability are ensured in the maintenance, replacement and disassembly processes.

Description

Technical Field

[0001] The present invention relates to the technical field of gastrointestinal tubes, and in particular to a gastrointestinal tube with enhanced corrosion resistance. Background Art

[0002] As a commonly used medical device in clinical treatment, gastrointestinal tubes are widely used in various medical scenarios such as nutritional support, gastrointestinal drainage and drug delivery. In current medical practice, gastrointestinal tubes are widely used in scenarios such as enteral nutritional support, drug infusion and gastrointestinal decompression. For example, patients who cannot eat after surgery are usually fed with nasogastric tubes to deliver nutrient solutions. The tubes are generally fed through the esophagus into the stomach, duodenum or jejunum. At the same time, in order to facilitate insertion, the tubes are required to have a certain hardness and elasticity.

[0003] However, during long-term use, existing gastrointestinal tubes will come into contact with corrosive media such as gastric juice, intestinal fluid, and infused medicine, and these media often cause corrosion and aging of the gastrointestinal tube materials, thereby affecting their service life and safety. Secondly, existing gastrointestinal tubes lack flexible angle adjustment functions and are difficult to adapt to the variable and tortuous internal anatomical paths of the gastrointestinal tract, which can easily cause the gastrointestinal tubes to encounter resistance during insertion, greatly increasing the patient's pain and even failing to reach the target position smoothly in some cases. In addition, existing gastrointestinal tubes are difficult to disassemble quickly when maintenance or replacement is required, which increases the difficulty of operation for medical staff, prolongs the patient's treatment time, and reduces medical efficiency. In view of this, a gastrointestinal tube with enhanced corrosion resistance is provided to overcome the above-mentioned defects. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a gastrointestinal tube with enhanced corrosion resistance.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a gastrointestinal tube with enhanced corrosion resistance, comprising a main intestinal tube, an outer sleeve is provided on the outside of the main intestinal tube, and a mounting ring is provided between the main intestinal tube and the outer sleeve, a docking tube is provided at one end of the outer sleeve away from the mounting ring, and the docking tube cooperates with the main intestinal tube, and a plurality of adjustment components are provided inside the main intestinal tube, which connects the main intestinal tube and the outer sleeve through the mounting ring, so as to facilitate quick disassembly, maintenance or replacement, and through the setting of multiple adjustment components, the angle controllability of the gastrointestinal tube is achieved, and the corrosion resistance of the gastrointestinal tube is enhanced through the outer sleeve.

[0006] As a further description of the above technical solution: the main intestinal tube includes an inner intestinal tube body arranged inside the outer sleeve, a plurality of guide strips are arranged on the outer circumference of the inner intestinal tube body, an inner cavity is opened on the inner side of the inner intestinal tube body, a conduction line is arranged in the middle of the inner cavity, and the conduction line cooperates with the adjustment component, a plurality of limit blocks are arranged on the outer circumference of the conduction line, and the limit blocks are arranged between two adjacent adjustment components to block, the main intestinal tube also includes an insertion block arranged at one end of the inner intestinal tube body, one end of the insertion block is provided with an arc surface, and a guide cavity is provided between the arc surface and the inner intestinal tube body, and one end of the arc surface is provided with a plurality of guides Hole, and the guide cavity is connected to the guide hole, the other end of the insertion block is provided with a connecting ring, and the connecting ring cooperates with the outer sleeve, a plurality of connecting holes are provided on the circumferential outer side of the connecting ring, and the insertion block is close to one end of the connecting ring and is located on the side of the connecting ring close to the guide cavity. An insertion groove is provided, and the wireless energy is distributed to each electromagnetic block through the cooperation of the central conduction line and the adjustment component to realize the power transmission channel, and the limit blocks between the two adjustment components are used to accurately control the position of the magnetic adsorption of the electromagnetic block to prevent dislocation, and the liquid flow path is optimized by the design of the guide strip, the guide cavity and the guide hole, so as to reduce the pressure difference in the inner cavity and facilitate the stabilization of the adsorption angle.

[0007] As a further description of the above technical solution: the outer sleeve includes an outer tube body arranged on the outside of the inner intestinal tube body, the outer side of the outer tube body is provided with a corrosion-resistant film, the interior of the outer tube body is provided with a flow cavity, and the gap between the flow cavity and the inner intestinal tube body forms a flow groove, and the flow groove is connected to the diversion cavity, the outer sleeve also includes a docking ring arranged at one end of the outer tube body, and the docking ring is connected to the connecting ring through a mounting ring, a plurality of docking holes are provided on the outer side of the circumference of the docking ring, and a splicing ring is provided at the end of the docking ring away from the outer tube body , and the splicing ring cooperates with the connecting ring, an insert ring is provided at one end of the splicing ring away from the docking ring, and the insert ring cooperates with the insert groove, the corrosion-resistant film is made of polyurethane material, and the surface of the corrosion-resistant film is covered with a hydrophilic coating. The polyurethane and hydrophilic coating of the corrosion-resistant film provide biocompatibility and corrosion resistance, extend the service life, ensure safety, and utilize the flow groove to connect with the guide cavity to ensure smooth gas and liquid flow, maintain the temperature and magnetic stability of the electromagnetic module, and use flexible rubber through the outer sleeve to support bending and deformation, so as to better play the effect of electromagnetic adjustment angle.

[0008] As a further description of the above technical solution: the mounting ring includes a ring body arranged on the outside of the connecting ring, and the ring body is connected to the docking ring, and a plurality of docking blocks are arranged inside the ring body, and the docking blocks cooperate with the docking holes. Through the cooperation of the docking blocks and the docking holes, the outer sleeve and the main intestinal tube are accurately engaged and connected, and the connection between the outer sleeve and the main intestinal tube is sealed by the ring body to improve the stability of the outer sleeve and the main intestinal tube after installation. At the same time, through the cooperation of the docking blocks and the docking holes, the outer sleeve and the main intestinal tube are easily disassembled and replaced during maintenance.

[0009] As a further description of the above technical solution: the docking tube includes a bucket-shaped tube arranged at one end of the outer tube body, a protective plate is provided inside the bucket-shaped tube, and the protective plate cooperates with the inner intestinal tube body, the protective plate and the bucket-shaped tube are connected by a connecting rod, a feed trough is provided between the protective plate and the bucket-shaped tube, and the feed trough is connected to the circulation trough, and the bucket-shaped structure and the protective plate provide a buffer for the module connection and the introduction of the catheter into the human body, reducing tissue friction damage during the insertion process, and the feed trough and the circulation trough are connected to transport or discharge the drug solution into the gastrointestinal tract to ensure the integrity of the pipeline function.

[0010] As a further description of the above technical solution: the adjustment component includes an adjustment shell arranged inside the inner cavity, a connecting hole is opened in the middle of the adjustment shell, and the connecting hole is connected to the conduction line, and a number of heat dissipation holes are opened at both ends of the adjustment shell, and an adjustment cavity is opened on the inner side of the adjustment shell, and a blocking plate is set in the middle of the adjustment cavity, and electromagnetic blocks are set at both ends of the blocking plate and inside the adjustment cavity. By setting the electromagnetic block, magnetic force is generated in the power-on state, and the adjacent electromagnetic blocks are attracted or repelled, thereby adjusting the relative angle and realizing the linkage adjustment of the small block angle. The connecting hole is connected to the conduction line for receiving wireless power supply signals or control instructions to realize precise angle adjustment control. The electromagnetic block is very easy to generate heat when working. The heat dissipation hole design can avoid the influence of temperature rise on magnetic force or material properties, and the middle blocking plate is used to make the magnetic force distribution more concentrated, enhance the adjustment accuracy, and prevent interference between adjacent magnetic blocks.

[0011] As a further description of the above technical solution: the inner intestinal tube body, the outer tube body and the ring body are all made of flexible rubber material. The inner intestinal tube body, the outer tube body and the ring body use flexible materials so that they can bend or move appropriately under force or magnetic attraction, thereby achieving overall compliance and adjustability. Moreover, the rubber material is soft and is not easy to cause irritation or damage when inserted into the gastrointestinal tract, thereby improving the medical experience.

[0012] The present invention has the following beneficial effects: The corrosion-resistant gastrointestinal tube designed by the present invention features a dual-layer structure consisting of a main intestinal tube and an outer sleeve, combined with a multi-segment adjustment assembly and a modular connecting ring, achieving a multi-faceted integration of gastrointestinal transport, electromagnetic control, and structural protection. The outer sleeve is positioned outside the main intestinal tube and precisely docked via a mounting ring, ensuring ease of operation and structural stability during maintenance, replacement, and removal. Furthermore, conductive wires are introduced into the main intestinal tube to coordinate with the adjustment assembly, enabling a coordinated response between the magnetically controlled electromagnetic blocks and rapid angle adjustment to accommodate the diverse and tortuous anatomical pathways of the gastrointestinal tract. The curved insert block structure and the interconnected internal diversion lumen optimize the fluid flow path, guiding the smooth flow of body fluids or medications within the lumen, effectively reducing local pressure differentials and improving the fluid dynamics of the tube. Furthermore, the design of the adjustment assembly separated by a stopper allows for precise control of the electromagnetic module's adsorption position, preventing magnetic misalignment or interference, and ensuring the stability and reliability of the overall adjustment system. The conductive wires, in conjunction with the adjustment assembly, form a power transmission path, supporting wireless energy and control signal transmission, significantly enhancing the system's automation and integration.

[0013] The enhanced corrosion-resistant gastrointestinal tube designed by the present invention utilizes a combination of a polyurethane corrosion-resistant film and a hydrophilic coating coated on the outer tube body to achieve effective corrosion protection against gastrointestinal fluids, improving the material's biocompatibility and long-term implant stability. A flow cavity is provided within the outer tube and communicates with the diversion cavity. Combined with the flexible rubber outer tube body, a flexible and deformable protective shell is constructed, further ensuring the adjustability and durability of the structural coordination during electromagnetic regulation. Furthermore, a multi-level combination structure of slots, holes, and ring bodies between the docking ring, splicing ring, and insertion ring ensures a multi-point stable connection between the outer tube and the main intestinal tube, improving seismic resistance and assembly efficiency. The matching structure of docking blocks and docking holes provided on the mounting ring further enhances the occlusal precision and sealing performance of the connection between the outer tube and the main intestinal tube. The circumferential compression effect of the ring body prevents external fluids or impurities from entering the connection area, reducing the risk of cross-contamination and structural loosening, and improving the overall safety and stability of the gastrointestinal tube during use.

[0014] The gastrointestinal tube with enhanced corrosion resistance designed by the present invention is constructed by providing a bucket-shaped butt joint tube at the end of the outer tube body, and arranging a protective plate and a feed trough inside to construct a buffer protection zone, which effectively reduces friction damage during the insertion of the device, and realizes the combined operation of liquid medicine introduction and discharge functions. The protective plate is connected to the bucket-shaped tube through a connecting rod to maintain stable structural support while ensuring the integrity of the internal and external gas-liquid passages, providing strong support for functional expansion in complex usage scenarios, and an adjustment shell with an electromagnetic block is provided in the adjustment component. A thermal control and magnetic control parallel structure is constructed by combining heat dissipation holes and barrier plates to ensure that the magnetic force of the electromagnetic block is stable in the working state, and effectively suppress the temperature rise of the unit to avoid damage to the component performance caused by high temperature. At the same time, the electromagnetic blocks are effectively partitioned by barrier plates to prevent magnetic interference overlap, thereby improving the adjustment accuracy and system response efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a cross-sectional view of the overall structure of the present invention; Figure 3 It is a three-dimensional schematic diagram of the overall structure of the present invention; Figure 4 This is a cross-sectional view of the main intestinal structure of the present invention; Figure 5 yes Figure 4 A magnified schematic diagram of the local structure at center A; Figure 6 This is a cross-sectional view of the outer sleeve structure in the present invention; Figure 7 yes Figure 6 A magnified schematic diagram of the local structure at point B in the middle; Figure 8 This is a schematic diagram of the mounting ring structure in the present invention; Figure 9 It is a cross-sectional view of the butt-jointing pipe structure in the present invention; Figure 10 It is a cross-sectional view of the adjustment component structure in the present invention.

[0016] Legend: 1. Main intestinal tube; 11. Inner intestinal tube body; 12. Guide strip; 13. Inner cavity; 14. Conducting line; 15. Limit block; 16. Insert block; 17. Arc surface; 18. Diversion cavity; 19. Diversion hole; 110. Connecting ring; 111. Connecting hole; 112. Insert slot; 2. Outer sleeve; 21. Outer tube body; 22. Corrosion-resistant membrane; 23. Circulation cavity; 24. Docking ring; 25. Docking hole; 26. Splicing ring; 27. Insert ring; 28. Circulation slot; 3. Mounting ring; 31. Ring body; 32. Docking block; 4. Docking tube; 41. Bucket tube; 42. Protective plate; 43. Connecting rod; 44. Feed trough; 5. Adjustment assembly; 51. Adjustment shell; 52. Connecting hole; 53. Heat dissipation hole; 54. Adjustment cavity; 55. Blocking plate; 56. Electromagnetic block. DETAILED DESCRIPTION

[0017] Reference Figures 1 to 10 The present invention provides a gastrointestinal tube with enhanced corrosion resistance, comprising a main intestinal tube 1, an outer sleeve 2 being provided on the outside of the main intestinal tube 1, and a mounting ring 3 being provided between the main intestinal tube 1 and the outer sleeve 2 for connection, a docking tube 4 being provided at one end of the outer sleeve 2 away from the mounting ring 3, and the docking tube 4 being matched with the main intestinal tube 1, a plurality of adjustment components 5 being provided inside the main intestinal tube 1, connecting the main intestinal tube 1 and the outer sleeve 2 through the mounting ring 3, which is convenient for quick disassembly, maintenance or replacement, and the angle controllability of the gastrointestinal tube is achieved by setting a plurality of adjustment components 5, and the corrosion resistance of the gastrointestinal tube is enhanced by the outer sleeve 2.

[0018] As a further implementation scheme of the above technical solution: the main intestinal tube 1 includes an inner intestinal tube body 11 arranged inside the outer sleeve 2, a plurality of guide strips 12 are arranged on the outer circumference of the inner intestinal tube body 11, an inner cavity 13 is opened on the inner side of the inner intestinal tube body 11, a conductive wire 14 is arranged in the middle of the inner cavity 13, a high-frequency induction coil is integrated in the conductive wire 14, and wireless energy transmission is realized through an external radio frequency generator (such as 13.56MHz), and the conductive wire 14 cooperates with the adjustment component 5, a plurality of limit blocks 15 are arranged on the outer circumference of the conductive wire 14, and the limit blocks 15 are arranged between two adjacent adjustment components 5 for isolation, the main intestinal tube 1 also includes an insertion block 16 arranged at one end of the inner intestinal tube body 11, an arcuate surface 17 is provided at one end of the insertion block 16, and a guide cavity 1 is provided between the arcuate surface 17 and the inner intestinal tube body 11. 8. A plurality of guide holes 19 are provided at one end of the arcuate surface 17, and the guide cavity 18 is connected to the guide hole 19. A connecting ring 110 is provided at the other end of the insertion block 16, and the connecting ring 110 cooperates with the outer sleeve 2. A plurality of connecting holes 111 are provided on the circumferential outer side of the connecting ring 110. An insertion groove 112 is provided on the insert block 16 close to one end of the connecting ring 110 and on the side of the connecting ring 110 close to the guide cavity 18. The wireless energy is distributed to each electromagnetic block 56 through the cooperation of the central conduction line 14 and the adjustment component 5 to realize the power transmission channel, and the limit block 15 between the two adjustment components 5 is used to accurately control the position of the magnetic adsorption of the electromagnetic block 56 to prevent dislocation, and the liquid flow path is optimized by designing the guide bar 12, the guide cavity 18 and the guide hole 19 to reduce the pressure difference in the inner cavity 13 and facilitate the stabilization of the adsorption angle.

[0019] As a further implementation scheme of the above technical solution: the outer sleeve 2 includes an outer tube body 21 arranged on the outside of the inner intestinal tube body 11, and a corrosion-resistant film 22 is provided on the outside of the outer tube body 21. A flow cavity 23 is opened inside the outer tube body 21, and the gap between the flow cavity 23 and the inner intestinal tube body 11 forms a flow groove 28. The flow groove 28 can be provided with an independent diaphragm (such as medical-grade polytetrafluoroethylene) in specific use to separate the drainage and nutrient delivery functions, and the flow groove 28 is connected to the diversion cavity 18. The outer sleeve 2 also includes a docking ring 24 arranged at one end of the outer tube body 21, and the docking ring 24 is connected to the connecting ring 110 through the mounting ring 3. A plurality of docking holes 25 are opened on the outer side of the circumference of the docking ring 24, and the docking ring 24 is away from the outer tube body 21. One end of the splicing ring 26 is provided, and the splicing ring 26 cooperates with the connecting ring 110. The end of the splicing ring 26 away from the docking ring 24 is provided with an insertion ring 27, and the insertion ring 27 cooperates with the insertion groove 112. The corrosion-resistant membrane 22 is made of polyurethane, and the surface of the corrosion-resistant membrane 22 is covered with a hydrophilic coating. The hydrophilic coating of the corrosion-resistant membrane 22 is made of polyvinyl pyrrolidone material, and the polyurethane surface is covered by a plasma spraying process. The polyurethane and hydrophilic coating of the corrosion-resistant membrane 22 provide biocompatibility and corrosion resistance, extend the service life, ensure safety, and utilize the flow groove 28 to communicate with the guide cavity 18 to ensure smooth gas and liquid flow, maintain the temperature and magnetic stability of the electromagnetic module, and use flexible rubber through the outer sleeve 2 to support bending and deformation, so as to better play the effect of electromagnetic adjustment angle.

[0020] As a further implementation scheme of the above technical scheme: the mounting ring 3 includes a ring body 31 arranged on the outside of the connecting ring 110, and the ring body 31 is connected to the docking ring 24, and a plurality of docking blocks 32 are arranged inside the ring body 31, and the docking blocks 32 cooperate with the docking holes 25. Through the cooperation of the docking blocks 32 and the docking holes 25, the precise bite connection between the outer sleeve 2 and the main intestinal tube 1 is achieved, and the connection between the outer sleeve 2 and the main intestinal tube 1 is sealed by the ring body 31, thereby improving the stability of the outer sleeve 2 and the main intestinal tube 1 after installation. At the same time, through the cooperation of the docking blocks 32 and the docking holes 25, the outer sleeve 2 and the main intestinal tube 1 are facilitated to be disassembled and replaced during maintenance.

[0021] As a further implementation plan of the above technical solution: the docking pipe 4 includes a bucket-shaped tube 41 arranged at one end of the outer tube body 21, and a protective plate 42 is arranged inside the bucket-shaped tube 41, and the protective plate 42 cooperates with the inner intestinal tube body 11, and the protective plate 42 is connected to the bucket-shaped tube 41 through a connecting rod 43, and a feed trough 44 is opened between the protective plate 42 and the bucket-shaped tube 41. The feed trough 44 can be additionally provided with a one-way valve sheet made of silicone material during specific use, so that the nutrient solution is transported in one direction, and the feed trough 44 is connected to the circulation groove 28. The bucket-shaped structure and the protective plate 42 provide a buffer for the module connection and the introduction of the catheter into the human body, reducing tissue friction damage during the insertion process, and the feed trough 44 is connected to the circulation groove 28 to transport or discharge the medicine into the gastrointestinal tract, thereby ensuring the integrity of the pipeline function.

[0022] As a further implementation plan of the above technical solution: the adjustment component 5 includes an adjustment shell 51 arranged inside the inner cavity 13, and a micro wireless receiving module (such as an NFC chip) is added in the adjustment shell 51 to receive external magnetic field control instructions and accurately control the opening and closing and magnetic pole direction of the electromagnetic block 56. This is the existing technology, so it will not be introduced in detail. A connecting hole 52 is provided in the middle of the adjustment shell 51, and the connecting hole 52 is connected to the conductive line 14. A number of heat dissipation holes 53 are provided at both ends of the adjustment shell 51. An adjustment cavity 54 is provided on the inner side of the adjustment shell 51, and a blocking plate 55 is provided in the middle of the adjustment cavity 54. In specific use, magnetic sensors (such as Hall elements) can be set on both sides of the blocking plate 55 to monitor the magnetic field strength in real time and adjust the current strength through feedback to compensate for the The magnetic force is attenuated due to the resistance or temperature change of gastrointestinal fluid. Electromagnetic blocks 56 are provided at both ends of the baffle plate 55 and inside the regulating cavity 54. The electromagnetic blocks 56 are arranged in alternating polarity. A corresponding wireless charging device is provided on the outside of the electromagnetic block 56. This is a prior art solution, so it will not be introduced in detail. By providing the electromagnetic block 56, a magnetic force is generated in the power-on state, which attracts or repels the adjacent electromagnetic blocks 56, thereby adjusting the relative angle and realizing the linkage adjustment of the small block angle. The connecting hole 52 is connected to the conductive line 14 for receiving wireless power supply signals or control instructions to realize precise angle adjustment control. The electromagnetic block 56 is very easy to generate heat when working. The heat dissipation hole 53 is designed to avoid the influence of temperature rise on magnetic force or material properties, and the middle baffle plate 55 is used to make the magnetic force distribution more concentrated, enhance the adjustment accuracy, and prevent interference between adjacent magnetic blocks.

[0023] As a further implementation plan of the above technical solution: the inner intestinal tube body 11, the outer tube body 21 and the ring body 31 are all made of flexible rubber material, and nano-silicon dioxide particles are added to the flexible rubber base material of the inner intestinal tube body 11, the outer tube body 21 and the ring body 31 to improve the resistance to gastric acid penetration. This is the existing technology and can be adjusted according to the needs during use. The inner intestinal tube body 11, the outer tube body 21 and the ring body 31 are made of flexible materials so that they can bend or move appropriately under force or magnetic attraction, thereby achieving overall compliance and adjustability, and the rubber material is soft and is not easy to cause irritation or damage when inserted into the gastrointestinal tract, thereby improving the medical experience.

[0024] Working principle: When using the present invention, the medical staff first selects the appropriate size model according to the patient's needs, and quickly connects the main intestinal tube 1 and the outer tube 2 through the installation ring 3. Specifically, the connecting ring 110 on the main intestinal tube 1 is docked with the docking ring 24 at one end of the outer tube 2, and the ring body 31 of the installation ring 3 is used for limiting and fixing. The docking block 32 set inside the ring body 31 is inserted into the docking hole 25 on the docking ring 24 to form a stable sealed connection, ensuring high-precision matching between the tube bodies. After completing the basic assembly, the user adjusts the electromagnetic block 56 inside the component 5 according to the infusion path or drainage requirements, and receives the electromagnetic excitation effect after wireless power supply from the main intestinal central conduction line 14. Under the action of the electromagnetic force, a magnetic response is formed, and the attraction or repulsion between adjacent electromagnetic blocks is used to realize micro-segment linkage, thereby driving the directional adjustment of the entire gastrointestinal tube structure to adapt to the direction of different cavities. During the adjustment process, the magnetic sensor in the adjustment shell 51 monitors the change of magnetic field intensity in real time and adjusts the current output. During the operation of the electromagnetic adjustment function, in order to ensure the thermal stability of the system, the heat dissipation holes 53 opened at both ends of the adjustment component can quickly release the heat generated during the operation of the electromagnetic block 56, avoid the temperature rise affecting the magnetic or catheter material properties, and ensure the continuous and stable operation of the system. At the same time, the baffle 55 located inside the adjustment component can focus the magnetic field distribution, avoid electromagnetic interference, and improve the adsorption accuracy.

[0025] In terms of the liquid passage, a guide strip 12 is provided on the inner side of the main intestinal tube to guide the body fluid to flow in an orderly manner along the inner cavity 13 to the guide cavity 18 at the insertion block 16, and to be discharged or infused in a directional manner through the guide hole 19. A flow groove 28 is formed between the outer sleeve 2 and the inner intestinal tube body 11. This structure realizes the physical isolation of drainage and nutrient delivery, and a medical diaphragm (such as polytetrafluoroethylene) can be inserted into the flow groove according to the specific use requirements to prevent cross contamination. In addition, the outer layer of the outer sleeve is covered with a corrosion-resistant film 22 composed of polyurethane, and the surface is covered with a hydrophilic polyvinyl pyrrolidone coating. It is integrally formed by a plasma spraying process to improve surface lubricity and biocompatibility, and enhance resistance to gastric acid and liquid medicine corrosion. The flexible rubber substrate contained in the catheter system has good bending performance and deformation recovery ability. The nano-silica particles contained in it further enhance the penetration resistance and structural strength of the overall material, avoiding damage or aging caused by long-term placement. During the insertion operation, the docking tube 4 at the end of the outer sleeve provides an insertion buffer for the catheter through its bucket-shaped structure. The internal protective plate 42 and the connecting rod 43 form a support to keep the feed trough 44 unobstructed. At the same time, a one-way valve sheet made of silicone material can be provided in the feed trough to ensure one-way flow of the liquid and avoid backflow contamination. The feed trough is connected to the circulation trough 28, so that the medicine or nutrient solution can smoothly enter the target position in the body from the outside, or the body fluid can be drained through the catheter.

[0026] After testing or use, medical staff can quickly disassemble the main intestinal tube 1 and the outer sleeve 2 by rotating the installation ring 3, which is convenient for cleaning, replacement or troubleshooting of the internal adjustment components. The sealing gasket and limiting structure provided at the adapter interface can ensure that the entire system maintains good sealing performance during repeated disassembly and assembly, preventing air, moisture or pathogens from entering the tube cavity, and ensuring the safety and reusability of the equipment.

[0027] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A gastrointestinal tube with enhanced corrosion resistance, characterized in that: The invention comprises a main intestinal tube (1), an outer sleeve (2) is provided on the outside of the main intestinal tube (1), and a mounting ring (3) is provided between the main intestinal tube (1) and the outer sleeve (2) for connection, a butt joint (4) is provided at one end of the outer sleeve (2) away from the mounting ring (3), and the butt joint (4) is matched with the main intestinal tube (1), and a plurality of adjustment components (5) are provided inside the main intestinal tube (1).

2. The gastrointestinal tube with enhanced corrosion resistance according to claim 1, characterized in that: The main intestinal tube (1) includes an inner intestinal tube body (11) arranged inside the outer sleeve (2), a plurality of guide strips (12) are arranged on the outer circumference of the inner intestinal tube body (11), an inner cavity (13) is opened on the inner side of the inner intestinal tube body (11), a conductive wire (14) is arranged in the middle of the inner cavity (13), and the conductive wire (14) is matched with the adjustment component (5), a plurality of limit blocks (15) are arranged on the outer circumference of the conductive wire (14), and the limit blocks (15) are arranged between two adjacent adjustment components (5) to block them.

3. The gastrointestinal tube with enhanced corrosion resistance according to claim 2, characterized in that: The main intestinal tube (1) further comprises an insertion block (16) arranged at one end of the inner intestinal tube body (11), one end of the insertion block (16) is provided with an arcuate surface (17), and a diversion cavity (18) is provided between the arcuate surface (17) and the inner intestinal tube body (11), one end of the arcuate surface (17) is provided with a plurality of diversion holes (19), and the diversion cavity (18) is connected to the diversion holes (19); A connecting ring (110) is provided at the other end of the insertion block (16), and the connecting ring (110) is matched with the outer sleeve (2). A plurality of connecting holes (111) are provided on the outer circumference of the connecting ring (110). An insertion groove (112) is provided on the side of the insertion block (16) close to one end of the connecting ring (110) and located close to the guide cavity (18) of the connecting ring (110).

4. The gastrointestinal tube with enhanced corrosion resistance according to claim 3, characterized in that: The outer sleeve (2) includes an outer tube body (21) arranged outside the inner intestinal tube body (11), a corrosion-resistant film (22) is provided on the outer side of the outer tube body (21), a circulation cavity (23) is opened inside the outer tube body (21), and a circulation groove (28) is formed in the gap between the circulation cavity (23) and the inner intestinal tube body (11), and the circulation groove (28) is connected to the diversion cavity (18).

5. The gastrointestinal tube with enhanced corrosion resistance according to claim 4, characterized in that: The outer sleeve (2) further comprises a docking ring (24) arranged at one end of the outer tube body (21), and the docking ring (24) is connected to the connecting ring (110) via a mounting ring (3), a plurality of docking holes (25) are provided on the outer circumference of the docking ring (24), a splicing ring (26) is provided at one end of the docking ring (24) away from the outer tube body (21), and the splicing ring (26) cooperates with the connecting ring (110), and an insertion ring (27) is provided at one end of the splicing ring (26) away from the docking ring (24), and the insertion ring (27) cooperates with the insertion groove (112).

6. The gastrointestinal tube with enhanced corrosion resistance according to claim 5, characterized in that: The mounting ring (3) comprises a ring body (31) arranged outside the connecting ring (110), and the ring body (31) is connected to the docking ring (24). A plurality of docking blocks (32) are arranged inside the ring body (31), and the docking blocks (32) cooperate with the docking holes (25).

7. The gastrointestinal tube with enhanced corrosion resistance according to claim 6, characterized in that: The butt joint pipe (4) includes a bucket-shaped pipe (41) arranged at one end of the outer tube body (21), a protective plate (42) is provided inside the bucket-shaped pipe (41), and the protective plate (42) cooperates with the inner intestinal tube body (11), the protective plate (42) and the bucket-shaped pipe (41) are connected by a connecting rod (43), a feed trough (44) is provided between the protective plate (42) and the bucket-shaped pipe (41), and the feed trough (44) is connected to the circulation groove (28).

8. The gastrointestinal tube with enhanced corrosion resistance according to claim 7, characterized in that: The regulating assembly (5) comprises a regulating shell (51) arranged inside the inner cavity (13); a communicating hole (52) is provided in the middle of the regulating shell (51), and the communicating hole (52) is connected to the conductive line (14); a plurality of heat dissipation holes (53) are provided at both ends of the regulating shell (51); a regulating cavity (54) is provided on the inner side of the regulating shell (51); a blocking plate (55) is provided in the middle of the regulating cavity (54); and electromagnetic blocks (56) are provided at both ends of the blocking plate (55) and inside the regulating cavity (54).

9. The gastrointestinal tube with enhanced corrosion resistance according to claim 8, characterized in that: The inner intestinal tube body (11), the outer tube body (21) and the ring body (31) are all made of flexible rubber material.

10. The gastrointestinal tube with enhanced corrosion resistance according to claim 5, characterized in that: The corrosion-resistant film (22) is made of polyurethane, and the surface of the corrosion-resistant film (22) is covered with a hydrophilic coating.

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