A stomach tube guide facilitating replacement of a stomach tube

Abstract

The application provides a stomach tube guide device facilitating stomach tube replacement, and belongs to the technical field of stomach tube body replacement. The device comprises a conveying device, a guide device and a stomach tube assembly, wherein the conveying device is installed at the outer end of the guide device. During application, the guide device makes the stomach tube body replacement operation simple and fast, effectively utilizes the characteristics of the new and old stomach tube bodies and the interaction between the components to complete the replacement process. The conveying device utilizes its unique structure and transmission relationship between the components to provide stable power and support for the movement of the guide wire in the stomach tube body. After the implantation of the stomach tube body is completed, only the adjustment handle needs to be twisted to separate the two guide wheels, thereby quickly removing the conveying device and providing convenience for the subsequent stomach tube body replacement operation. The entire device is convenient to operate during the stomach tube body replacement process, can improve the safety and stability of the operation, and is convenient for users to operate.

Description

Technical Field

[0001] This invention relates to the field of gastric tube replacement technology, and more specifically, to a gastric tube guide that facilitates gastric tube replacement. Background Technology

[0002] A nasogastric tube is a common medical device, usually made of soft, flexible materials such as silicone or rubber. Its main function is to establish a passage from the outside to the stomach during clinical medical procedures. Nasal tubes are used in various situations, such as for patients who cannot eat on their own, such as those who are in a coma or have oral or pharyngeal diseases that cause difficulty swallowing. Medical staff can insert the nasogastric tube through the nose or mouth, along the esophagus, and finally reach the stomach. Then, using a syringe or a special nutrition infusion device, nutrient solutions, water, or medications are injected into the stomach through the nasogastric tube to ensure that the patient receives sufficient nutrition and hydration to maintain normal physiological functions.

[0003] Currently in the medical care field, gastric tubes are an important tool to ensure the nutritional supply and gastrointestinal function regulation of special patients. For patients who rely on gastric tubes for a long time, regular replacement of the gastric tube is a necessary measure to maintain the treatment effect and medical safety. Due to the different materials of the gastric tubes, the replacement cycle varies. Ordinary gastric tubes are replaced once a week, while silicone tubes should be replaced no more than once a month.

[0004] However, the current procedure of changing a gastric tube faces many challenges. When inserting a new gastric tube, it is necessary to strictly control the patient's position and perform a series of steps such as cleaning and lubricating the nasal cavity. In practice, repeated unsuccessful tube insertions often occur. This can cause strong irritation to the patient's nasopharynx, esophagus and gastric mucosa, causing great pain to the patient and also having many adverse effects on their psychology and physiology, such as anxiety and stress response. At the same time, family members witnessing the patient's pain also experience increased anxiety.

[0005] Furthermore, although changing a gastric tube is a non-invasive procedure, patients need to travel back and forth between the hospital and home each time. This not only delays the patient's subsequent treatment process but also greatly increases the burden on the family in terms of time, energy, and money. Given the various drawbacks of traditional gastric tube changing methods, there is an urgent need for an innovative gastric tube assistive guidance device to improve the success rate of tube placement, reduce patient pain, alleviate the pressure on family members, and optimize the medical and nursing process. Summary of the Invention

[0006] To address the problem of inconvenient and slow gastric tube replacement in existing technologies, the present invention aims to provide a gastric tube guide that facilitates gastric tube replacement.

[0007] To solve the above problems, the present invention adopts the following technical solution:

[0008] A gastric tube guide that facilitates gastric tube replacement includes a delivery device, a guiding device, and a gastric tube assembly. The delivery device is installed at the outer end of the guiding device, and the gastric tube assembly is sleeved on the outer surface of the guiding device.

[0009] The guiding device includes a guide wire, which is hollow and has a wire inside. A guide housing is fixedly connected to the outer end of the guide wire. Limiting components are fixedly connected at equal intervals to the outer side of the guide housing. A power connector is fixedly connected to the end of the guide wire away from the guide housing. The gastric tube assembly is sleeved on the outer surface of the guide wire.

[0010] The gastric tube assembly includes a gastric tube body, which is sleeved on the outer surface of a guidewire. An annular elastic bladder is fixedly connected to the lower outer surface of the gastric tube body. A connecting tube is fixedly connected to one side of the gastric tube body, and the outer end of the connecting tube extends outside the gastric tube body.

[0011] Optionally, the conveying device includes a guide rail, the inside of which is provided with an adjustment component, and a power component is fixedly connected to the outside of the adjustment component. The power component is disposed on both sides of the outer surface of the guide wire and its inner side is in close contact with the outer surface of the guide wire.

[0012] Optionally, the outer end of the connecting tube extends outside the gastric tube body and is fixedly connected to an air supply connector. The outer side of the air supply connector is provided with an external thread, and a convenient tear strip is fixedly connected to one side of the outer end of the gastric tube body.

[0013] Optionally, the adjusting assembly includes a lead screw rotatably connected to the inside of a guide rail. The two ends of the lead screw have opposite thread directions, and one end of the lead screw passes through the guide rail. An adjusting handle is fixedly connected to one end of the lead screw through the guide rail. Both ends of the lead screw are threadedly connected to sliders, and the outer side of the sliders is fixedly connected to a power assembly.

[0014] Optionally, the limiting component includes a connecting strap and a fixing seat. The fixing seat is fixedly connected to the outer surface of the guide housing at equal intervals. The connecting strap is fixedly connected to the bottom of the gastric tube body in a ring arrangement at equal intervals. The outer surface of the fixing seat has grooves on both sides. The inner sides of the grooves have reserved grooves. A torsion spring is fixedly connected to the inner side of the reserved groove. A connecting plate is fixedly connected to the inner end of the torsion spring. A clamp is fixedly installed on the inner side of the connecting plate. Electromagnets are fixedly connected to the four corners of the inner side of the clamp. The electromagnets are electrically connected to a power connector through wires.

[0015] Optionally, an anti-slip base plate is fixedly connected to the inner side of the clamping plate, and anti-slip protrusions are fixedly connected at equal intervals on the inner side of the anti-slip base plate. The connecting strip is disposed between the inner sides of each anti-slip base plate.

[0016] Optionally, the side of the slider is convex, the cross-sectional shape of the internal cavity of the guide rail is also convex, and a wear-resistant pad is fixedly connected to the outer surface of the slider.

[0017] Optionally, the power assembly includes a mounting bracket, which is fixedly connected to the outside of the slider and slidably connected to the outer surface of the guide rail. A guide wheel is rotatably connected inside the mounting bracket, and an annular groove is formed on the outer surface of the guide wheel.

[0018] Optionally, the cross-sectional shape of the annular groove is V-shaped, the inner inclined surface of the annular groove is in close contact with the outer surface of the guide wire, a crank handle is rotatably connected to the top of a mounting bracket, and the bottom of the crank handle is fixedly connected to the top of the guide wheel inside the mounting bracket.

[0019] Optionally, circular plates are fixedly connected to both sides of the bottom of the guide rail, and bridge-type handrails are fixedly installed on the bottom of the circular plates. Anti-slip handrail gloves are fixedly connected to the outer surface of the bridge-type handrails.

[0020] Compared with the prior art, the technical solution provided by this invention has at least the following beneficial effects:

[0021] In the above scheme, when the gastric tube body needs to be replaced, the guide wire is first inserted into the new gastric tube body. Then, the guide housing is placed inside the connecting band. The power is turned on to power the electromagnet and generate magnetic attraction, which drives the clamp to move inward. During this process, the torsion spring is compressed, and the clamps move relative to each other to clamp and fix the connecting band. After the fixation is completed, the new gastric tube body can be installed on the outside of the limiting component and the guide wire. With the toughness of the guide wire and the softness of the gastric tube body, the new gastric tube body is implanted into the patient's body along the old gastric tube body. After the new gastric tube body passes through the old gastric tube body, the annular elastic bladder can be inflated by connecting an air pump or by artificial air blowing to fix the gastric tube body in the patient's stomach. Then, the power of the electromagnet is turned off, the torsion spring is reset and opens the clamp, the guide wire is pulled out, and finally, the old gastric tube body is pulled out by pulling it out. The annular elastic bladder of the new gastric tube body is used for limiting, and then the air in the annular elastic bladder is expelled. This operation can realize the convenient replacement of the gastric tube body.

[0022] During the implantation of the gastric tube, the screw inside the guide rail can be rotated by twisting the adjustment handle. Because the threads at both ends of the screw rotate in opposite directions, it drives the slider to make a stable reciprocating sliding displacement within the guide rail. The slider drives the mounting bracket to move inward, which in turn drives the guide wheel to move to both ends of the guide wire. The annular groove on the outer side of the guide wheel has a V-shaped cross section, and its inner wall can stably fit the outer surface of the guide wire. When the handle is pulled, the guide wheel will rotate due to its fit with the guide wire, thereby driving the guide wire to move forward within the new gastric tube. This design, through the cooperation of the handle and the guide wheel, significantly improves the stability of guide wire implantation and avoids the problem of abrasions to the human body due to poor force control when manually installing the gastric tube. The use of guide wheels to assist in the transmission of the guide wire ensures the stability of the guide wire transmission process and enhances the convenience of the device during the implantation of the gastric tube.

[0023] During application, this device employs a guiding mechanism that simplifies and expedites the replacement of the gastric tube. It effectively utilizes the characteristics of the new and old gastric tubes and the interaction between their components to complete the replacement process. The transmission device, with its unique structure and the transmission relationship between its components, provides stable power and support for the movement of the guidewire within the gastric tube. Furthermore, after the gastric tube is implanted, simply turning the adjustment handle separates the two guide wheels, allowing for quick removal of the transmission device and facilitating subsequent replacement of the gastric tube. The entire device is easy to operate during gastric tube replacement, enhancing both safety and stability while providing convenience for the user. Attached Figure Description

[0024] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the invention and, together with the specification, further serve to explain the principles of the invention and enable those skilled in the art to practice and use the invention.

[0025] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0026] Figure 2 This is a bottom-view structural diagram of the present invention;

[0027] Figure 3 This is a side view of the guiding device and conveying device of the present invention;

[0028] Figure 4 This is a bottom view schematic diagram of the guiding device and conveying device of the present invention;

[0029] Figure 5 This is a schematic diagram of the overall structure of the conveying device of the present invention;

[0030] Figure 6 This is a schematic diagram of the structure of the clamping plate away from the guide housing of the present invention;

[0031] Figure 7This is a schematic diagram of the clamping plate near the guide housing of the present invention;

[0032] Figure 8 For the present invention Figure 1 A magnified structural diagram at point A;

[0033] Figure 9 For the present invention Figure 2 A magnified structural diagram at point B;

[0034] Figure 10 This is an enlarged structural diagram of the limiting component of the present invention.

[0035] [Figure Labels]

[0036] 1. Conveying device; 11. Guide rail;

[0037] 12. Adjustment assembly; 121. Lead screw; 122. Slider; 123. Adjustment handle;

[0038] 13. Power unit; 131. Mounting bracket; 132. Guide wheel; 133. Annular groove; 134. Crank handle;

[0039] 14. Circular plate; 15. Bridge-style handrail;

[0040] 2. Guiding device; 21. Guide wire; 22. Guide housing;

[0041] 23. Limiting component; 231. Connecting belt; 232. Fixing base; 233. Groove; 234. Reserved groove; 235. Torsion spring; 236. Connecting plate; 237. Clamping plate; 238. Electromagnet; 239. Anti-slip base plate; 24. Power connector;

[0042] 3. Gastric tube assembly; 31. Gastric tube body; 32. Circular elastic bladder; 33. Connecting thin tube; 34. Easy-tear strap; 35. Air supply connector.

[0043] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0044] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. It should also be noted that, to make the embodiments more comprehensive, the following embodiments are the best and preferred embodiments, and those skilled in the art can use other alternative methods to implement some well-known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0045] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0046] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0047] It is understood that the meanings of “on”, “above”, and “above” in this invention should be interpreted in the broadest manner, such that “on” means not only “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” means not only “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0048] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0049] like Figures 1 to 10 As shown, this embodiment of the invention provides a gastric tube guide that facilitates gastric tube replacement, including a delivery device 1, a guide device 2, and a gastric tube assembly 3. The delivery device 1 is installed at the outer end of the guide device 2, and the gastric tube assembly 3 is sleeved on the outer surface of the guide device 2.

[0050] The guiding device 2 includes a guide wire 21, which is hollow and has a wire inside. A guide housing 22 is fixedly connected to the outer end of the guide wire 21. Limiting components 23 are fixedly connected at equal intervals to the outer side of the guide housing 22. A power connector 24 is fixedly connected to the end of the guide wire 21 away from the guide housing 22. The gastric tube assembly 3 is sleeved on the outer surface of the guide wire 21.

[0051] The gastric tube assembly 3 includes a gastric tube body 31, which is fitted onto the outer surface of the guide wire 21. An annular elastic bladder 32 is fixedly connected to the lower outer surface of the gastric tube body 31. A connecting tube 33 is fixedly connected to one side of the inner side of the gastric tube body 31, with the outer end of the connecting tube 33 extending outside the gastric tube body 31. The delivery device 1 and the guiding device 2 work together to improve the efficiency and stability of gastric tube replacement. The guide wire 21 inside the guiding device 2 is hollow and contains internal wires. This structure gives the guide wire 21 a certain strength, assisting in the smooth implantation of the gastric tube body 31. Simultaneously, the wires can be used to transmit electricity to guide the electromagnet 2 inside the guide housing 22. The 38 components provide power, and the limiting component 23 on the outside of the guide housing 22 can effectively position the gastric tube assembly 3, ensuring that the gastric tube body 31 maintains a precise position during implantation and replacement. One end of the guide wire 21 is connected to the power plug 24, which facilitates connection to an external power source to provide power for the operation of the guiding device 2. On the gastric tube assembly 3, the gastric tube body 31 is fitted over the guide wire 21, and can be smoothly implanted into the patient's body with the guidance of the guide wire 21. After inflation, the annular elastic bladder 32 at the lower end of the gastric tube body 31 can fix the gastric tube body 31 and prevent it from shifting. The connecting thin tube 33 provides a channel for the inflation and deflation of the annular elastic bladder 32, improving the convenience and reliability of gastric tube replacement.

[0052] like Figures 1 to 5 and Figure 8As shown, the conveying device 1 includes a guide rail 11, inside which is an adjusting assembly 12. Power assemblies 13 are fixedly connected to the outer sides of the adjusting assembly 12. The power assemblies 13 are located on both sides of the outer surface of the guide wire 21, with their inner sides in close contact with the outer surface of the guide wire 21. The adjusting assembly 12 includes a lead screw 121, which is rotatably connected to the inside of the guide rail 11. The two ends of the lead screw 121 have opposite thread directions. One end of the lead screw 121 passes through the guide rail 11, and one end of the lead screw 121 is fixedly connected to an adjusting handle 123 through the guide rail 11. Slider blocks 122 are threaded to both ends of the lead screw 121. The outer sides of the sliders 122 are fixedly connected to the power assembly 13. When it is necessary to adjust the position of the guide wire 21 to assist in changing the gastric tube, the adjusting handle 123 is rotated. 123 drives the lead screw 121 to rotate inside the guide rail 11. Since the threads at both ends of the lead screw 121 turn in opposite directions and both ends are threadedly connected to the sliders 122, the rotation of the lead screw 121 will drive the two sliders 122 to move in opposite directions relative to each other inside the guide rail 11. The outer side of the sliders 122 is fixedly connected to the power assembly 13. Therefore, the movement of the sliders 122 will drive the power assembly 13 to move synchronously. The inner side of the power assembly 13 is in contact with the outer surface of the guidewire 21. Through the movement of the power assembly 13, a force can be generated on the guidewire 21, thereby pushing the guidewire 21 to move along the predetermined direction. This process not only realizes the precise control of the position of the guidewire 21, but also makes the adjustment process stable and precisely controllable by utilizing the threaded cooperation between the lead screw 121 and the sliders 122. It provides reliable power support and position adjustment function for the smooth implantation and replacement of the gastric tube.

[0053] like Figure 1 , Figure 2 and Figure 8As shown, the outer end of the connecting tube 33 extends outside the gastric tube body 31 and is fixedly connected to an air supply connector 35. The air supply connector 35 has an external thread on its outer side. A convenient tear strip 34 is fixedly connected to one side of the outer end of the gastric tube body 31. The slider 122 has a convex shape on its side, and the internal cavity of the guide rail 11 also has a convex shape. A wear-resistant gasket is fixedly connected to the outer surface of the slider 122. The air supply connector 35, which extends from the outer end of the connecting tube 33 to the outside of the gastric tube body 31 and is fixedly connected, can be easily and tightly connected to an air pump or other air supply equipment due to its external thread, ensuring that gas can be stably transmitted from external equipment to the connecting tube 33, thereby filling the annular elastic bladder 32 and achieving a stable fixation of the gastric tube body 31 in the patient's stomach. When it is necessary to remove the gastric tube... When the gas tube is in place, the gas inside the annular elastic bladder 32 can be discharged through the connector, facilitating the removal of the gastric tube. The convenient tear strip 34 on one side of the outer end of the gastric tube body 31 provides convenience for the removal of the gastric tube. When it is necessary to remove the gastric tube body 31, simply pinch the tear strip to pull out the old gastric tube body 31. This can help the operator quickly remove the gastric tube from the patient's body, reducing the difficulty and time of operation. The sides of the slider 122 and the internal cavity of the guide rail 11 are both convex. This unique structure allows the slider 122 to be accurately positioned when sliding in the guide rail 11, preventing the slider 122 from deviating during movement, and ensuring a stable sliding effect. The wear-resistant pads fixedly connected to the outer surface of the slider 122 can effectively reduce the friction between the slider 122 and the guide rail 11, extending the service life of the guide rail 11 and the slider 122.

[0054] like Figure 8As shown, the power assembly 13 includes a mounting bracket 131, which is fixedly connected to the outside of the slider 122. The mounting bracket 131 is slidably connected to the outer surface of the guide rail 11. A guide wheel 132 is rotatably connected inside the mounting bracket 131. An annular groove 133 is formed on the outer surface of the guide wheel 132. The cross-sectional shape of the annular groove 133 is V-shaped. The inner inclined surface of the annular groove 133 is in close contact with the outer surface of the guide wire 21. A crank handle 134 is rotatably connected to the top of mounting bracket 131. The bottom of the crank handle 134 is fixedly connected to the top of the guide wheel 132 inside the mounting bracket 131. Circular plates 14 are fixedly connected to both sides of the bottom of the guide rail 11. A bridge-type handrail 15 is fixedly installed on the bottom of the circular plate 14. An anti-slip handrail glove is fixedly connected to the outer surface of the bridge-type handrail 15. The mounting bracket 131 is fixed to the outside of the slider 122 and can slide on the outer surface of the guide rail 11. When the slider 122 is driven by the lead screw 121 to slide on the guide rail... When the guide wheel 132 moves within the rail 11, the mounting bracket 131 also moves synchronously. The guide wheel 132, rotatably connected inside the mounting bracket 131, has a V-shaped annular groove 133 on its outer side that tightly fits the outer surface of the guide wire 21, providing good guidance. When the crank handle 134 is turned, since the bottom of the crank handle 134 is fixedly connected to the top of the guide wheel 132, the rotation of the crank handle 134 will drive the guide wheel 132 to rotate synchronously. During the rotation of the guide wheel 132, the guide wire 21 is guided by the V-shaped annular groove 133. The guide wire 21 is fitted and a force is applied to it, which stably pushes the guide wire 21 to move within the gastric tube body 31, ensuring the accuracy and stability of the guide wire 21 implantation. The circular plates 14 fixed on both sides of the bottom of the guide rail 11 and the bridge-type handrail 15 below provide the operator with a point of leverage for hand operation. The non-slip handrail further increases the stability and comfort of the grip, making it easier for the operator to better control the crank 134 when adjusting the position of the guide wire 21, and to achieve precise operation of the guide wire 21 movement.

[0055] like Figure 10As shown, the limiting component 23 includes a connecting strap 231 and a fixing seat 232. The fixing seat 232 is fixedly connected to the outer surface of the guide housing 22 at equal intervals. The connecting strap 231 is fixedly connected to the bottom of the gastric tube body 31 in a ring-shaped arrangement at equal intervals. Grooves 233 are formed on both sides of the outer surface of the fixing seat 232. Reserved grooves 234 are formed on both sides of the inner surface of each groove 233. A torsion spring 235 is fixedly connected to the inner side of each reserved groove 234. A connecting plate 236 is fixedly connected to the inner end of 235. A clamping plate 237 is fixedly installed on the inner side of the connecting plate 236. Electromagnets 238 are fixedly connected to the four corners of the inner side of the clamping plate 237. The electromagnets 238 are electrically connected to the plug 24 via wires. An anti-slip base plate 239 is fixedly connected to the inner side of the clamping plate 237. Anti-slip protrusions are fixedly connected at equal intervals on the inner side of the anti-slip base plate 239. A connecting band 231 is provided on each anti-slip base plate 235. Between the inner sides of 9, when the power plug 24 is connected to the power source, the current is conducted through the wire to the electromagnet 238, causing it to generate magnetism. At this time, the clamp 237 connected by the torsion spring 235 in the groove 233 of the fixing base 232 moves inward against the elastic force of the torsion spring 235 under the magnetic attraction of the electromagnet 238. The anti-slip base plate 239 and the anti-slip protrusions on the inner side of the clamp 237 can increase the friction between it and the connecting strip 231. Since the connecting strip 231 is located at each anti-slip... When the clamping plate 237 is closed between the inner sides of the base plate 239, it can tightly clamp the connecting strap 231 and firmly fix the gastric tube body 31 on the guide device 2. When it is necessary to release the fixation, the power supply of the power plug 24 is cut off, the electromagnet 238 loses its magnetism, the torsion spring 235 returns to its original state, and the clamping plate 237 is driven to open outward, so that the gastric tube body 31 is separated from the guide device 2, which facilitates subsequent replacement or adjustment operations and ensures the stability and reliability of the gastric tube during implantation and replacement.

[0056] The workflow of the technical solution provided by this invention is as follows:

[0057] During the use of this device, the guiding device 2 plays an important role. When it is necessary to replace the gastric tube body 31, the guide wire 21 is first inserted into the new gastric tube body 31. Then, the guiding housing 22 is placed between the inner sides of the connecting band 231. The power supply is connected using the power plug 24, and the electromagnet 238 is powered. After being energized, the electromagnet 238 will generate magnetism, which will attract the inner components and drive the two clamps 237 to move inward. During this process, the torsion spring 235 will be compressed and in a taut state. The mutual approach of the clamps 237 can help to complete the clamping and fixing operation of the connecting band 231. After the connecting band 231 is fixed, the new gastric tube body 31 can be stably installed on the outside of the limiting component 23 and the guide wire 21.

[0058] Leveraging the strength of the guidewire 21 and the flexibility of the gastric tube body 31, the new gastric tube body 31 can be implanted into the patient along the path of the old gastric tube body 31. Once the new gastric tube body 31 has successfully passed through the old one, the annular elastic bladder 32 is inflated by connecting the air supply connector 35 at the outer end of the suction tube to an air pump, or by blowing air directly into the patient's mouth. This inflation secures the gastric tube body 31 firmly in place in the patient's stomach. Subsequently, the power to the electromagnet 238 is cut off, causing it to lose its magnetism. Under the reset action of the torsion spring 235, the clamp 23... Once the guidewire 21 is stretched open, it can be smoothly pulled out of the gastric tube body 31 again. At this time, by pulling the old gastric tube body 31 located outside the new gastric tube body 31, it can be quickly pulled out of the patient's body. Because the new gastric tube body 31 has been limited in the stomach by the inflation of the annular elastic bladder 32, the old gastric tube can be pulled out efficiently. Finally, the air in the annular elastic bladder 32 is discharged using the air supply plug. It can be seen that in the overall application of this device, the gastric tube body 31 can be replaced conveniently and quickly, and the operation process is relatively convenient.

[0059] In addition, the delivery device 1 also exhibits unique advantages during the gastric tube implantation process. When performing the gastric tube implantation operation, by twisting the adjustment handle 123, the lead screw 121 inside the guide rail 11 can be rotated. The rotation of the lead screw 121 will drive the sliders 122 at both ends inside the guide rail 11 to slide. Since the threads at both ends of the lead screw 121 rotate in opposite directions, the sliders 122 can slide back and forth in the guide rail 11 synchronously and stably. The sliding of the sliders 122 will drive the mounting frame 131 to move inward, so that the guide wheels 132 on the mounting frame 131 move to both ends of the guide wire 21. The annular groove 133 provided on the outer side of the guide wheel 132 has a unique design with a V-shaped cross-section. The inner wall of the annular groove 133 can closely fit the outer surface of the guide wire 21. Pulling the crank handle 134 can drive the guide wheel 132 to rotate. Because the guide wheel 132 is in contact with the surface of the guide wire 21, the guide wheel 132 will stably push the guide wire 21 forward in the new gastric tube body 31 under the drive of the crank 134. This method of driving the guide wire 21 by the crank 134 driving the guide wheel 132 can significantly enhance the stability of the guide wire 21 implanted in the patient's body, and avoid the situation of abrasion caused by difficulty in controlling the force when manually implanting the gastric tube body 31. Using the guide wheel 132 to assist in the transmission of the guide wire 21 makes the transmission process of the guide wire 21 more stable, greatly improving the convenience and stability of this device when implanting the gastric tube. Moreover, after the gastric tube body 31 is implanted, only the adjustment handle needs to be turned to drive the two guide wheels 132 to separate, thereby quickly removing the transmission device 1 and facilitating the subsequent replacement of the gastric tube body 31.

[0060] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0061] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A gastric tube guide for easy gastric tube replacement, comprising a delivery device, a guiding device, and a gastric tube assembly, characterized in that, The delivery device is installed at the outer end of the guiding device, and the gastric tube assembly is sleeved on the outer surface of the guiding device; The guiding device includes a guide wire, which is hollow and has a wire inside. A guide housing is fixedly connected to the outer end of the guide wire. Limiting components are fixedly connected at equal intervals to the outer side of the guide housing. A power connector is fixedly connected to the end of the guide wire away from the guide housing. The gastric tube assembly is sleeved on the outer surface of the guide wire. The gastric tube assembly includes a gastric tube body, which is sleeved on the outer surface of the guidewire. An annular elastic bladder is fixedly connected to the lower outer surface of the gastric tube body. A connecting tube is fixedly connected to one side of the gastric tube body, and the outer end of the connecting tube extends outside the gastric tube body. The limiting component includes a connecting strap and a fixing seat. The fixing seat is fixedly connected to the outer surface of the guide housing at equal intervals. The connecting strap is fixedly connected to the bottom of the gastric tube body in a ring arrangement at equal intervals. The outer surface of the fixing seat has grooves on both sides. The inner sides of the grooves have reserved grooves. A torsion spring is fixedly connected to the inner side of the reserved groove. A connecting plate is fixedly connected to the inner end of the torsion spring. A clamp is fixedly installed on the inner side of the connecting plate. Electromagnets are fixedly connected to the four corners of the inner side of the clamp. The electromagnets are electrically connected to a power plug through wires.

2. The gastric tube guide for easy gastric tube replacement according to claim 1, characterized in that, The conveying device includes a guide rail, and an adjustment component is provided inside the guide rail. A power component is fixedly connected to the outside of the adjustment component. The power component is disposed on both sides of the outer surface of the guide wire, and its inner side is in close contact with the outer surface of the guide wire.

3. The gastric tube guide for easy gastric tube replacement according to claim 2, characterized in that, The outer end of the connecting tube extends outside the gastric tube body and is fixedly connected to an air supply connector. The outer side of the air supply connector is provided with an external thread, and a convenient tear strip is fixedly connected to one side of the outer end of the gastric tube body.

4. The gastric tube guide for easy gastric tube replacement according to claim 3, characterized in that, The adjustment assembly includes a lead screw, which is rotatably connected to the inside of the guide rail. The two ends of the lead screw have opposite thread directions. The end of the lead screw passes through the guide rail. One end of the lead screw passes through the guide rail and is fixedly connected to an adjustment handle. Both ends of the lead screw are threadedly connected to sliders. The outer side of the sliders is fixedly connected to the power assembly.

5. The gastric tube guide for easy gastric tube replacement according to claim 1, characterized in that, An anti-slip base plate is fixedly connected to the inner side of the clamping plate, and anti-slip protrusions are fixedly connected at equal intervals on the inner side of the anti-slip base plate. The connecting strip is disposed between the inner sides of each anti-slip base plate.

6. The gastric tube guide for easy gastric tube replacement according to claim 4, characterized in that, The slider has a convex shape on its side, and the internal cavity of the guide rail also has a convex shape in its cross-section. A wear-resistant pad is fixedly connected to the outer surface of the slider.

7. The gastric tube guide for easy gastric tube replacement according to claim 6, characterized in that, The power assembly includes a mounting bracket, which is fixedly connected to the outside of the slider and slidably connected to the outer surface of the guide rail. A guide wheel is rotatably connected inside the mounting bracket, and an annular groove is formed on the outer surface of the guide wheel.

8. The gastric tube guide for easy gastric tube replacement according to claim 7, characterized in that, The annular groove has a V-shaped cross-section. The inner inclined surface of the annular groove is in close contact with the outer surface of the guide wire. A crank handle is rotatably connected to the top of a mounting bracket. The bottom of the crank handle is fixedly connected to the top of the guide wheel inside the mounting bracket.

9. The gastric tube guide for easy gastric tube replacement according to claim 8, characterized in that, Both sides of the bottom of the guide rail are fixedly connected to circular plates, and bridge-type handrails are fixedly installed on the bottom of the circular plates. Anti-slip handrail gloves are fixedly connected to the outer surface of the bridge-type handrails.

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