Visual nasogastric tube with AI intelligent identification function

Abstract

The invention discloses an AI intelligent identification visual nasogastric tube, and relates to the technical field of medical instruments, the AI intelligent identification visual nasogastric tube comprises a nasogastric tube body and a guide wire body, one end of the nasogastric tube body is provided with a monitoring end, the other end of the nasogastric tube body is provided with a tube joint, and the nasogastric tube body is internally provided with a main channel, an auxiliary channel and a data channel; a first data line is arranged in the data channel, and one end of the first data line is in electric signal connection with a first camera module; the first camera module is a waterproof medical camera, the first data line is an optical fiber, the data channel and the first data line are sealed through silica gel, and the first data line is connected with an external monitoring terminal through a data interface. The high-definition waterproof medical camera arranged in the monitoring end is deeply combined with the AI algorithm, the probability that the nasogastric tube enters the trachea by mistake is reduced by collecting the characteristics of the inner wall of the alimentary canal in real time and automatically distinguishing the airway and the esophagus inlet, and the AI model can learn individualized anatomical differences, dynamically adjust the recognition threshold value and meet the requirements of different patients.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and more specifically to a visualized nasogastric tube with AI intelligent recognition. Background Technology

[0002] Nasogastric tubes are a common clinical tool for enteral nutrition support, and their safe placement is crucial for the treatment of critically ill patients. However, traditional placement techniques have significant limitations:

[0003] Relying on medical staff's experience to judge the depth and path of intubation carries a 3%-5% chance of accidental tracheal intubation (especially in children and patients with impaired consciousness), easily leading to serious complications such as suffocation and lung infection. Repeated adjustments to angle and depth are necessary, taking a considerable amount of time (average 8-12 minutes), increasing patient suffering and the consumption of medical resources. The single-lumen design causes conflicts between nutrient solution delivery and secretion clearance, and long-term indwelling can easily lead to problems such as tube blockage and mucosal damage.

[0004] Therefore, it is necessary to propose an AI-powered, visualized nasogastric tube for intelligent recognition to address the aforementioned issues. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] The purpose of this invention is to address the problems of high risk and complex operation of existing blind insertion of nasogastric tubes by providing an AI-intelligent visual nasogastric tube.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the present invention specifically adopts the following technical solution:

[0009] A visualized nasogastric tube with AI intelligent recognition includes a nasogastric tube body and a guidewire body. One end of the nasogastric tube body is equipped with a monitoring end, and the other end is equipped with a tube connector. The nasogastric tube body has a main channel, a secondary channel, and a data channel internally. The data channel contains a first data line, one end of which is electrically connected to a first camera module located at the end of the data channel. The first camera module is a waterproof medical camera, and the first data line is an optical fiber. The data channel and the first data line are sealed with silicone. The first data line is connected to an external monitoring terminal via a data interface, and the monitoring terminal is equipped with AI-assisted functions.

[0010] A steering mechanism is provided on the outer side of the guide wire body. The steering mechanism includes a mounting ring located on the outer side of the guide wire body near the second camera module and a control box at the end of the guide wire body. An extension is fixedly connected to the top of the mounting ring. The extension is made of silicone material, and a steering head is fixedly connected to the top of the extension.

[0011] By adopting the above technical solutions, the medical camera built into the monitoring terminal is deeply integrated with the AI ​​algorithm. By collecting the characteristics of the digestive tract wall in real time, it can automatically distinguish the airway and esophageal entrance, reducing the probability of nasogastric tubes being accidentally inserted into the trachea. The AI ​​model can learn individualized anatomical differences and dynamically adjust the recognition threshold to adapt to the needs of different patients.

[0012] The present invention is further configured such that: a second camera module is fixedly connected to the top end of the guidewire body, the second camera module is electrically connected to a second data line, and the end of the second data line extends out of the guidewire body and is connected to a data interface.

[0013] By adopting the above technical solution, the guidewire body is used to insert into the main channel of the nasogastric tube body to achieve tube unblocking and assist in the insertion of the nasogastric tube. A second camera module is integrated at the top of the guidewire body to provide a three-dimensional structural view inside the body.

[0014] The invention is further configured such that: four support frames are fixedly connected in a ring shape to the inner side of the control box; a steering control rod is rotatably connected to the middle of each of the four support frames; the steering control rod is rotatably connected to the control box and extends out of the control box; the outer side of the steering control rod is fixedly connected to the control box through a return torsion spring; four channels for accommodating steering control ropes are opened inside the guide wire body; one end of each of the four steering control ropes is fixedly connected to the four steering control rods respectively; and the other end of each of the four steering control ropes is fixedly connected to the circumference of the steering head through the channels.

[0015] By adopting the above technical solution, the guidewire body is inserted through the main channel and then inserted into the nasal cavity, slowly advancing. The second camera module at the front end of the guidewire body is connected to the monitoring terminal through the data interface at the end of the second data cable to view the internal structure. When the guidewire angle deviates, the corresponding direction steering control lever can be rotated and adjusted. When the steering control lever rotates, it winds the steering control rope, which stretches the steering head to control the direction. The four steering control levers are connected to four steering control ropes for precise control of different positions, improving the flexibility of the guidewire.

[0016] The present invention is further configured such that: an adjusting ring is provided inside the mounting ring, the adjusting ring is sleeved on the outside of the guide wire body, both ends of the adjusting ring are rotatably connected to a linkage rod, the end of the linkage rod is rotatably connected to a support plate, the support plate is located in the notch of the mounting ring, a slide plate is fixedly connected inside the mounting ring, a guide post is slidably connected to the middle of the slide plate, and the guide post is fixedly connected to the support plate;

[0017] A sleeve is fixedly connected to the middle of the control box. Guide slides are symmetrically opened on the inner side of the sleeve. An arc-shaped limiting slide is opened at the top of the guide slide. A slider is slidably connected inside the two guide slides. A limiting plate is fixedly connected between the two sliders. A positioning control rod is fixedly connected to the middle of the limiting plate. A return spring is sleeved on the outer side of the positioning control rod. The top of the positioning control rod extends out of the control box.

[0018] The guide wire body has a channel in the middle to accommodate the positioning control rope. One end of the positioning control rope is fixedly connected to the mounting ring through the channel, and the other end of the positioning control rope is fixedly connected to the positioning control rod.

[0019] By employing the above technical solution, the positioning control rod is used to support the guidewire body inside the nasogastric tube. Pulling the positioning control rod causes the mounting ring to slide via the positioning control rope. The mounting ring, through a linkage rod, moves the support plate outward, pushing it out. The support plate moves horizontally outward along the slide plate via a guide post, resting against the inner wall of the nasogastric tube. When the positioning control rod moves upward, it causes the slider to slide along the guide slide. When the slider reaches the end of the guide slide, the positioning control rod is rotated, causing the slider to enter the limiting slide, thus limiting the positioning control rod. Even if the positioning control rod is released, the support plate will still rest against the inner wall of the nasogastric tube.

[0020] The invention is further configured such that: a nasogastric tube delivery mechanism is provided on the outer side of the nasogastric tube body; the nasogastric tube delivery mechanism includes a mounting box; a transmission channel is provided on one side of the mounting box; a support pad is fixedly connected to the bottom of the mounting box; the support pad is made of silicone material; elastic straps are fixedly connected to the bottom of both sides of the mounting box; and Velcro fasteners are attached to the ends of the two elastic straps; an upper transmission roller and a lower transmission roller are respectively provided at the upper and lower ends of the transmission channel; a servo motor and a tensioning wheel mechanism are installed inside the mounting box; pulleys are installed on the upper transmission roller, the servo motor, and the tensioning wheel mechanism; and multiple pulleys are connected by a transmission belt; the lower transmission roller is rotatably connected to the mounting box.

[0021] By adopting the above technical solution, the nasogastric tube delivery mechanism is used for automatic transport of the nasogastric tube body. In use, the mounting box is first placed on the patient's face, specifically at the upper lip below the nasal cavity, with the support pad in contact with the skin. The elastic band is then secured to the head using Velcro. Next, the nasogastric tube body is inserted through the transport channel between the upper and lower transport rollers. The servo motor is then activated, and through the transmission of a pulley and transport belt, it drives the upper transport roller to rotate. The upper transport roller transports the nasogastric tube body. During transport, a camera module monitors the internal structure, and a steering mechanism adjusts the direction in a timely manner.

[0022] The present invention is further configured such that: a first mounting bracket is movably connected to the outer side of the upper transmission roller via a rotating shaft; an internally threaded column is fixedly connected to the top of the first mounting bracket; an adjusting bolt is threadedly connected to the top of the internally threaded column; the top of the adjusting bolt is rotatably connected to the mounting box and extends out of the mounting box; a first adjusting slide is provided on the inner side of the mounting box; and the rotating shaft on the upper transmission roller is slidably connected to the first adjusting slide.

[0023] The tensioning wheel mechanism includes a second adjusting slide rail located inside the mounting box. A tensioning pulley is slidably connected inside the second adjusting slide rail. A second mounting bracket is mounted on the outer side of the tensioning pulley via a rotating shaft. A tensioning spring is fixedly connected to one side of the second mounting bracket. A fixing plate is fixedly connected to the end of the tensioning spring. The fixing plate is fixedly connected to the mounting box.

[0024] By adopting the above technical solution, by setting an adjusting bolt, turning the adjusting bolt causes the first mounting bracket to move up or down through the internal threaded column, thereby causing the upper transmission roller to move up or down, which is used to adjust the distance between the upper and lower transmission rollers, thus adapting to different models of nasogastric tubes; the tensioning wheel mechanism is used to passively control the tension of the transmission belt. When the upper transmission roller moves, the tensioning spring squeezes the second mounting bracket, so that the transmission belt always remains in contact with the pulley.

[0025] (III) Beneficial Effects

[0026] The beneficial effects of this invention are as follows:

[0027] 1. The monitoring terminal of this invention integrates a high-definition waterproof medical camera with an AI algorithm. By collecting real-time features of the digestive tract wall, it can automatically distinguish between the airway and the esophagus entrance, reducing the probability of a nasogastric tube being accidentally inserted into the trachea. The AI ​​model can learn individualized anatomical differences and dynamically adjust the recognition threshold to suit the needs of different patients.

[0028] 2. The dual-channel design of the present invention, with main channel for nutrient delivery and secondary channel for gas injection and anti-condensation, ensures long-term indwelling stability and avoids tube blockage caused by the accumulation of secretions. It is especially suitable for high-risk groups such as children and patients with impaired consciousness.

[0029] 3. The present invention features a steering mechanism on the outside of the guidewire, with the steering control rod and the reset torsion spring linked together, giving the end of the guidewire the ability to flexibly turn in multiple directions to adapt to complex anatomical structures.

[0030] 4. The servo motor-driven nasogastric tube delivery mechanism of this invention achieves uniform speed pushing, reducing errors from manual tube insertion and improving placement efficiency. The combination of a silicone support pad and elastic strap design ensures the device fits stably against the facial skin, reducing patient discomfort. During delivery, data from the camera module is continuously accessed, achieving a closed-loop operation mode of "delivery and correction simultaneously." Attached Figure Description

[0031] Figure 1 This is a three-dimensional schematic diagram of the nasogastric tube body structure of the present invention;

[0032] Figure 2 This is a partial cross-sectional schematic diagram of the monitoring end structure of the present invention;

[0033] Figure 3 This is a three-dimensional schematic diagram of the guidewire body structure of the present invention;

[0034] Figure 4 This is a cross-sectional schematic diagram of the mounting ring in the steering mechanism of the present invention;

[0035] Figure 5 This is a cross-sectional schematic diagram of the control box in the steering mechanism of the present invention;

[0036] Figure 6 This is a three-dimensional schematic diagram of the nasogastric tube delivery mechanism of the present invention;

[0037] Figure 7 This is a cross-sectional schematic diagram of the mounting box structure of the present invention;

[0038] Figure 8 This is a three-dimensional schematic diagram of the tensioning wheel mechanism of the present invention.

[0039] Reference numerals: 1. Nasogastric tube body; 2. Monitoring end; 3. Tube connector; 4. Main channel; 5. Secondary channel; 6. Data channel; 7. First data cable; 8. First camera module; 9. Guide wire body; 10. Second camera module; 11. Second data cable; 12. Steering mechanism; 13. Control box; 14. Mounting ring; 15. Extension; 16. Steering head; 17. Adjusting ring; 18. Linkage rod; 19. Support plate; 20. Guide column; 21. Slide plate; 22. Positioning control rope; 23. Steering control rope; 24. Sleeve; 25. Guide slide; 26. Limit slide; 27. Slider; 28. Limit 29. Positioning plate; 30. Positioning control lever; 31. Return spring; 32. Support frame; 33. Steering control lever; 34. Return torsion spring; 35. Nasogastric tube delivery mechanism; 36. Mounting box; 37. Upper transmission roller; 38. Lower transmission roller; 39. Servo motor; 40. Tensioning wheel mechanism; 41. Pulley; 42. Transmission belt; 43. Adjusting bolt; 44. First mounting bracket; 45. Internal threaded column; 46. First adjusting slide; 47. Second mounting bracket; 48. Tensioning pulley; 49. Tensioning spring; 50. Fixing plate; 51. Second adjusting slide; 52. Transmission channel; 53. Support pad; 54. Elastic strap. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] Example 1

[0042] Please refer to Figure 1 and Figure 2 A visual nasogastric tube with AI intelligent recognition includes a nasogastric tube body 1 and a guide wire body 9. One end of the nasogastric tube body 1 is provided with a monitoring end 2, and the other end of the nasogastric tube body 1 is provided with a tube connector 3. The nasogastric tube body 1 has a main channel 4, a secondary channel 5 and a data channel 6 respectively. The data channel 6 has a first data line 7 inside. One end of the first data line 7 is electrically connected to a first camera module 8. The first camera module 8 is located at the end of the data channel 6. The other end of the first data line 7 extends out of the nasogastric tube body 1 and is connected to a data interface.

[0043] A first camera module 8 is installed at the monitoring terminal 2. The first camera module 8 is a waterproof medical camera with a diameter ≤1.8mm, a resolution of 1080P, and a 120° wide-angle view. The first data cable 7 is an optical fiber. The data channel 6 and the first data cable 7 are sealed with silicone. The first data cable 7 is connected to an external monitoring terminal through a data interface. The monitoring terminal is equipped with AI-assisted functions to identify the airway (ringed cartilage texture) and gastric mucosa (villous structure), thereby avoiding the insertion of a nasogastric tube into the trachea. The monitoring terminal is equipped with a wireless module, supports WiFi connection to a mobile APP, displays images in real time, and supports video recording and screenshots.

[0044] The diameter of the main channel 4 is larger than that of the secondary channel 5. Through this dual-lumen conduit design of the main channel 4 and the secondary channel 5, the main channel 4 is used for nutrient delivery, and the secondary channel 5 is used for gas injection to avoid water vapor condensation.

[0045] Example 2

[0046] Please see Figures 3 to 5 This embodiment is a further optimization based on embodiment 1. Specifically, a second camera module 10 is fixedly connected to the top of the guide wire body 9, the second camera module 10 is electrically connected to a second data line 11, and the end of the second data line 11 extends out of the guide wire body 9 and is connected to a data interface.

[0047] A steering mechanism 12 is provided on the outside of the guide wire body 9. The steering mechanism 12 includes a mounting ring 14 located on the outside of the guide wire body 9 near the second camera module 10 and a control box 13 at the end of the guide wire body 9.

[0048] An extension 15 is fixedly connected to the top of the mounting ring 14. The extension 15 is made of silicone, and a steering head 16 is fixedly connected to the top of the extension 15.

[0049] The inner side of the control box 13 is fixedly connected to four support frames 31 in a ring shape. The center of each of the four support frames 31 is rotatably connected to a steering control rod 32. The steering control rod 32 is rotatably connected to the control box 13 and extends out of the control box 13. The outer side of the steering control rod 32 is fixedly connected to the control box 13 through a return torsion spring 33.

[0050] The guide wire body 9 has four channels inside to accommodate the steering control ropes 23; one end of each of the four steering control ropes 23 is fixedly connected to one of the four steering control levers 32, and the other end of each of the four steering control ropes 23 is fixedly connected to the four sides of the steering head 16 through the channels.

[0051] In this embodiment, the guidewire body 9 is inserted into the main channel 4 of the nasogastric tube body 1 to clear the tube and assist in the insertion of the nasogastric tube. In use, the guidewire body 9 is inserted through the main channel 4, then inserted into the nasal cavity and slowly advanced. The second camera module 10 at the front end of the guidewire body 9 is connected to a monitoring terminal via the data interface at the end of the second data cable 11 to view internal structures. When the guidewire angle deviates, the corresponding direction-adjusting steering control lever 32 can be rotated. When the steering control lever 32 rotates, it winds around the steering control rope 23, which stretches the steering head 16, thereby controlling the direction. Four steering control levers 32 are connected to four steering control ropes 23 for precise control of different orientations, improving the flexibility of the guidewire.

[0052] When the steering control lever 32 is rotated, it compresses the reset torsion spring 33. After the steering control lever 32 is released, the steering control lever 32 automatically resets under the elastic force of the reset torsion spring 33.

[0053] Example 3

[0054] Please see Figures 3 to 5 This embodiment is a further optimization based on embodiment 2. Specifically, the mounting ring 14 is provided with an adjusting ring 17 inside. The adjusting ring 17 is sleeved on the outside of the guide wire body 9. Both ends of the adjusting ring 17 are rotatably connected to a linkage rod 18. The end of the linkage rod 18 is rotatably connected to a support plate 19. The support plate 19 is located in the notch of the mounting ring 14. The mounting ring 14 is fixedly connected to a slide plate 21. The middle of the slide plate 21 is slidably connected to a guide post 20. The guide post 20 is fixedly connected to the support plate 19. The support plate 19 is arc-shaped, and its outer surface has the same curvature as the surface of the mounting ring 14.

[0055] A sleeve 24 is fixedly connected to the middle of the control box 13. Guide slides 25 are symmetrically opened on the inner side of the sleeve 24. An arc-shaped limiting slide 26 is opened at the top of the guide slide 25. A slider 27 is slidably connected inside the two guide slides 25. A limiting plate 28 is fixedly connected between the two sliders 27. A positioning control rod 29 is fixedly connected to the middle of the limiting plate 28. A return spring 30 is sleeved on the outer side of the positioning control rod 29. The top of the positioning control rod 29 extends out of the control box 13.

[0056] The guide wire body 9 has a channel in the middle to accommodate the positioning control rope 22. One end of the positioning control rope 22 is fixedly connected to the mounting ring 14 through the channel, and the other end of the positioning control rope 22 is fixedly connected to the positioning control rod 29.

[0057] In this embodiment, in the intelligent nasogastric tube system, the positioning control rod 29 serves as the core transmission component, and its innovative design significantly enhances the coordinated stability of the guidewire body 9 and the nasogastric tube body 1. This mechanism, through a precise mechanical linkage system, achieves three-dimensional spatial constraint and controllable release of the catheter-guidewire composite, providing a breakthrough solution to the relative displacement problem in traditional catheter placement techniques.

[0058] The positioning control rod 29 is used to support the guidewire body 9 inside the nasogastric tube. Pulling the positioning control rod 29 causes the mounting ring 14 to slide via the positioning control rope 22. The mounting ring 14, via the linkage rod 18, drives the support plate 19 and pushes it out. The support plate 19 moves horizontally outward along the slide plate 21 via the guide post 20, and rests against the inner wall of the nasogastric tube. When the positioning control rod 29 moves upward, it causes the slider 27 to slide along the guide slide 25. When the slider 27 reaches the end of the guide slide 25, the positioning control rod 29 is rotated, causing the slider 27 to enter the limiting slide 26, thus limiting the positioning control rod 29. Even if the positioning control rod 29 is released, the support plate 19 can still rest against the inner wall of the nasogastric tube.

[0059] This support mechanism can temporarily fix the guidewire and nasogastric tube, allowing the nasogastric tube to move along with the guidewire. This support mechanism overcomes the limitations of traditional separate catheter-guidewire designs, establishing a new paradigm for the coordinated operation of minimally invasive interventional devices through the combination of precision mechanical control and intelligent sensing. Its modular design concept is not only applicable to nasogastric tube systems but can also be extended to medical devices requiring complex propulsion, such as central venous catheters and ureteral stents, demonstrating broad industrialization prospects.

[0060] Example 4

[0061] Please see Figure 6 and Figure 7This embodiment is a further optimization based on embodiment 1. Specifically, a nasogastric tube delivery mechanism 34 is provided on the outer side of the nasogastric tube body 1. The nasogastric tube delivery mechanism 34 includes a mounting box 35. A transmission channel 51 is opened on one side of the mounting box 35. An upper transmission roller 36 and a lower transmission roller 37 are respectively provided at the upper and lower ends of the transmission channel 51. A servo motor 38 and a tensioning wheel mechanism 39 are installed inside the mounting box 35. Pulleys 40 are installed on the upper transmission roller 36, the servo motor 38, and the tensioning wheel mechanism 39. Multiple pulleys 40 are connected by transmission belt 41. The lower transmission roller 37 is rotatably connected to the mounting box 35 and passively rotates with the nasogastric tube.

[0062] The bottom of the mounting box 35 is fixedly connected to a support pad 52, which is made of silicone. The silicone support pad 52 has a Shore hardness of 40A-60A. Its surface is laser-etched to form a skin-like micro-texture (Ra≤0.8μm). Both sides of the bottom of the mounting box 35 are fixedly connected to elastic straps 53, and the ends of the two elastic straps 53 are provided with Velcro 54 for adhesion.

[0063] In this embodiment, the nasogastric tube delivery mechanism 34 is used to automatically transport the nasogastric tube body 1. In use, the installation box 35 is first placed on the patient's face, specifically at the upper lip below the nasal cavity, with the support pad 52 in contact with the skin, and the elastic strap 53 is fixed to the head using Velcro 54;

[0064] Then, by placing the nasogastric tube body 1 between the upper transfer roller 36 and the lower transfer roller 37 through the transfer channel 51, the servo motor 38 is started. The servo motor 38 drives the upper transfer roller 36 to rotate through the transmission cooperation of the pulley 40 and the transfer belt 41. The upper transfer roller 36 transports the nasogastric tube body 1. During the transport, the internal structure is monitored by the camera module, and the direction is adjusted in time by the steering mechanism 12.

[0065] Example 5

[0066] Please see Figure 7 and Figure 8 This embodiment is a further optimization based on embodiment 4. Specifically, the outer side of the upper transmission roller 36 is movably connected to the first mounting bracket 43 via a rotating shaft. The top end of the first mounting bracket 43 is fixedly connected to the internal threaded column 44. The top end of the internal threaded column 44 is threadedly connected to the adjusting bolt 42. The top end of the adjusting bolt 42 is rotatably connected to the mounting box 35 and extends out of the mounting box 35. The inner side of the mounting box 35 is provided with a first adjusting slide 45. The rotating shaft on the upper transmission roller 36 is slidably connected to the first adjusting slide 45.

[0067] The tensioning pulley mechanism 39 includes a second adjusting slide 50 located inside the mounting box 35. A tensioning pulley 47 is slidably connected inside the second adjusting slide 50. A second mounting bracket 46 is mounted on the outer side of the tensioning pulley 47 via a rotating shaft. A tensioning spring 48 is fixedly connected to one side of the second mounting bracket 46. A fixing plate 49 is fixedly connected to the end of the tensioning spring 48. The fixing plate 49 is fixedly connected to the mounting box 35.

[0068] In this embodiment, by setting an adjusting bolt 42, turning the adjusting bolt 42 causes the first mounting bracket 43 to move upward or downward via the internal threaded post 44, which in turn causes the upper transmission roller 36 to move upward or downward, thereby adjusting the distance between the upper transmission roller 36 and the lower transmission roller 37 to accommodate different types of nasogastric tubes. The tensioning wheel mechanism 39 is used to passively control the tension of the transmission belt 41. When the upper transmission roller 36 moves, the tension spring 48 compresses the second mounting bracket 46, ensuring that the transmission belt 41 always remains in contact with the pulley 40. In the intelligent nasogastric tube delivery device, the coordinated control system composed of the adjusting bolt 42 and the tensioning wheel mechanism 39 achieves precise control of the transmission roller distance and dynamic balance of belt tension through precise mechanical linkage and adaptive adjustment mechanism. This innovative design not only breaks through the limitations of traditional fixed catheter delivery devices, but also provides reliable physical protection for the safe insertion of nasogastric tubes of different specifications.

[0069] Working principle: In the first usage scenario, the guidewire body 9 is inserted first. During use, the guidewire body 9 is inserted through the main channel 4, and then inserted into the nasal cavity, slowly advancing. The second camera module 10 at the front end of the guidewire body 9 is connected to the monitoring terminal through the data interface at the end of the second data cable 11 for viewing the internal structure. When there is a deviation in the guidewire angle, the corresponding direction adjustment steering control lever 32 can be rotated. When the steering control lever 32 rotates, it winds the steering control rope 23, which stretches the steering head 16, thereby controlling the direction. The four steering control levers 32 are connected to four steering control ropes 23 for precise control of different orientations. When the steering control lever 32 rotates, it compresses the reset torsion spring 33. After the steering control lever 32 is released, it automatically resets under the elastic force of the reset torsion spring 33.

[0070] In the first usage scenario, the guidewire body 9 is fixed in the nasogastric tube body 1 and inserted into the nasogastric tube body 1. First, the guidewire body 9 is inserted into the main channel 4 of the nasogastric tube body 1, so that the guidewire body 9 reaches the monitoring end 2; then, the positioning control rod 29 is pulled, and the positioning control rod 29 drives the mounting ring 14 to slide through the positioning control rope 22. The mounting ring 14 drives the support plate 19 through the linkage rod 18 and pushes the support plate 19 out. The support plate 19 moves horizontally outward along the slide plate 21 through the guide post 20, and the support plate 19 rests against the inner wall of the main channel 4. When the positioning control rod 29 moves upward, it drives the slider 27 to slide along the guide slide 25. When the slider 27 reaches the end of the guide slide 25, the positioning control rod 29 is rotated, so that the slider 27 enters the limiting slide 26, limiting the positioning control rod 29. Even if the positioning control rod 29 is released, the support plate 19 can still rest against the inner wall of the main channel 4.

[0071] Then, by setting the adjusting bolt 42 and turning the adjusting bolt 42, the adjusting bolt 42 drives the first mounting bracket 43 to move up or down through the internal threaded column 44, thereby driving the upper transmission roller 36 to move up or down, which is used to adjust the distance between the upper transmission roller 36 and the lower transmission roller 37, thereby adapting to different models of nasogastric tubes; then, the mounting box 35 is placed on the patient's face, specifically at the upper lip below the nasal cavity, with the support pad 52 in contact with the skin, and the elastic band 53 is fixed to the head using Velcro 54;

[0072] By placing the nasogastric tube body 1 between the upper transmission roller 36 and the lower transmission roller 37 through the transmission channel 51, the end of the nasogastric tube body 1 is inserted into the nasal cavity. The servo motor 38 is started. The servo motor 38 drives the upper transmission roller 36 to rotate through the transmission cooperation of the pulley 40 and the transmission belt 41. The upper transmission roller 36 transports the nasogastric tube body 1. By setting the first camera module 8 at the monitoring end 2, the first data line 7 is connected to the external monitoring terminal through the data interface to identify the airway and gastric mucosa, thereby avoiding inserting the nasogastric tube body 1 into the trachea. If there is an angle deviation, the direction is controlled by the guide wire body 9 because the end of the guide wire body 9 is fixed together with the nasogastric tube body 1.

[0073] In summary, the monitoring terminal 2 of this invention integrates a 1080P high-definition waterproof medical camera (diameter ≤1.8mm) with AI algorithms. By collecting real-time data on the features of the digestive tract wall (such as annular cartilage patterns and gastric mucosal villi), it automatically distinguishes between the airway and esophagus entrance, reducing the probability of nasogastric tubes being mistakenly inserted into the trachea. The AI ​​model can learn individualized anatomical differences (such as obesity and postoperative scarring) and dynamically adjust the recognition threshold to suit the needs of different patients. The first image module 8 transmits the image to the monitoring terminal via the first data line 7 (optical fiber), supporting 120° wide-angle panoramic imaging and providing a three-dimensional view of the entire nasal cavity, pharynx, and esophagus. The AI-assisted interface overlays virtual marker lines (such as "safe insertion depth") to guide medical staff to advance the catheter along the optimal path. The wireless module supports WiFi connection to a mobile APP, enabling simultaneous monitoring across multiple terminals. AI recognition results and real-time images can generate reports with a single click, facilitating intraoperative decision-making and postoperative review. The dual-channel design, with main channel 4 for nutrient delivery and secondary channel 5 for gas injection and anti-condensation, ensures long-term indwelling stability and avoids tubing blockage caused by secretion accumulation. Traditional blind insertion methods have an error rate of approximately 3%-5%, while this solution uses AI recognition to reduce the risk to below 0.5%, making it particularly suitable for high-risk groups such as children and patients with impaired consciousness.

[0074] This invention integrates a second camera module 10 at the top of the guidewire body 9, providing a three-dimensional view of the internal structure. Combined with a four-way steering mechanism 12, it enables precise angle adjustment, reducing the risk of blind insertion. The linkage design between the steering control lever 32 and the reset torsion spring 33 allows the guidewire tip to have multi-directional flexible steering capabilities, adapting to complex anatomical structures. The built-in structure of the guidewire can simultaneously clear the main channel 4 during insertion, preventing nasogastric tube obstruction. The support mechanism, through the combination of an arc-shaped support plate 19 and a guide post 20, physically fixes the guidewire and nasogastric tube, ensuring synchronous movement and avoiding insertion deviation caused by relative displacement. The limiting slide 26, slider 27, and limiting plate 28 system can lock the support state, maintaining guidewire positioning even under external force, improving operational safety.

[0075] The nasogastric tube delivery mechanism 34 of this invention achieves uniform speed pushing of the nasogastric tube body 1 driven by a servo motor 38, reducing errors from manual tube insertion and improving placement efficiency. The combination of a silicone support pad 52 and an elastic strap 53 ensures a stable fit to the facial skin, reducing patient discomfort. During delivery, data from the camera module is continuously accessed, enabling a closed-loop operation mode of "simultaneous delivery and correction."

[0076] By adjusting the linkage between bolt 42 and internal threaded post 44, different diameter nasogastric tubes (such as F12-F18) can be quickly matched, expanding the applicability of the equipment. The tensioning wheel mechanism 39 automatically compensates for belt tension as the upper transmission roller 36 rises and falls, ensuring transmission stability.

[0077] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. The scope of patent protection of the present invention shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present invention shall also be included within the scope of protection of the present invention.

Claims

1. A visualized nasogastric tube with AI intelligent recognition, comprising a nasogastric tube body (1) and a guidewire body (9), characterized in that: One end of the nasogastric tube body (1) is provided with a monitoring end (2), and the other end of the nasogastric tube body (1) is provided with a pipe connector (3). The nasogastric tube body (1) is provided with a main channel (4), a secondary channel (5) and a data channel (6) respectively. The data channel (6) is provided with a first data line (7). One end of the first data line (7) is electrically connected to a first camera module (8). The first camera module (8) is located at the end of the data channel (6). The guide wire body (9) is provided with a steering mechanism (12) on the outside. The steering mechanism (12) includes a mounting ring (14) located on the outside of the guide wire body (9) near the second camera module (10) and a control box (13) at the end of the guide wire body (9). An extension part (15) is fixedly connected to the top of the mounting ring (14). The extension part (15) is made of silicone. A steering head (16) is fixedly connected to the top of the extension part (15). The nasogastric tube body (1) is provided with a nasogastric tube delivery mechanism (34) on the outside. The nasogastric tube delivery mechanism (34) includes a mounting box (35). A transmission channel (51) is opened on one side of the mounting box (35). A support pad (52) is fixedly connected to the bottom of the mounting box (35). The support pad (52) is made of silicone. Elastic straps (53) are fixedly connected to the bottom of both sides of the mounting box (35). The ends of the two elastic straps (53) are provided with Velcro (54) for adhesion.

2. The AI-powered intelligent visual nasogastric tube according to claim 1, characterized in that: The first camera module (8) is a waterproof medical camera, the first data cable (7) is an optical fiber, the data channel (6) and the first data cable (7) are sealed with silicone, the first data cable (7) is connected to an external monitoring terminal through a data interface, and the monitoring terminal is equipped with AI auxiliary function.

3. The AI-powered intelligent recognition visual nasogastric tube according to claim 1, characterized in that: The top end of the guidewire body (9) is fixedly connected to a second camera module (10), the second camera module (10) is electrically connected to a second data line (11), and the end of the second data line (11) extends out of the guidewire body (9) and is connected to a data interface.

4. The AI-powered intelligent recognition visual nasogastric tube according to claim 1, characterized in that: The inner side of the control box (13) is fixedly connected to four support frames (31) in a ring shape. The center of each of the four support frames (31) is rotatably connected to a steering control rod (32). The steering control rod (32) is rotatably connected to the control box (13) and extends out of the control box (13). The outer side of the steering control rod (32) is fixedly connected to the control box (13) through a reset torsion spring (33). The inside of the guide wire body (9) is provided with four channels for accommodating steering control ropes (23). One end of each of the four steering control ropes (23) is fixedly connected to the four steering control rods (32), and the other end of each of the four steering control ropes (23) is fixedly connected to the steering head (16) around the perimeter through the channels.

5. The AI-powered intelligent visual nasogastric tube according to claim 1, characterized in that: The mounting ring (14) is provided with an adjusting ring (17) inside. The adjusting ring (17) is sleeved on the outside of the guide wire body (9). Both ends of the adjusting ring (17) are rotatably connected to a linkage rod (18). The end of the linkage rod (18) is rotatably connected to a support plate (19). The support plate (19) is located in the notch of the mounting ring (14). The mounting ring (14) is fixedly connected to a slide plate (21). The middle part of the slide plate (21) is slidably connected to a guide post (20). The guide post (20) is fixedly connected to the support plate (19). A sleeve (24) is fixedly connected to the middle of the control box (13). A guide slide (25) is symmetrically opened on the inner side of the sleeve (24). An arc-shaped limiting slide (26) is opened at the top of the guide slide (25). A slider (27) is slidably connected inside the two guide slides (25). A limiting plate (28) is fixedly connected between the two sliders (27). A positioning control rod (29) is fixedly connected to the middle of the limiting plate (28). A return spring (30) is sleeved on the outer side of the positioning control rod (29). The top of the positioning control rod (29) extends out of the control box (13).

6. The AI-powered intelligent recognition visual nasogastric tube according to claim 5, characterized in that: The guide wire body (9) has a channel in the middle to accommodate the positioning control rope (22). One end of the positioning control rope (22) is fixedly connected to the mounting ring (14) through the channel, and the other end of the positioning control rope (22) is fixedly connected to the positioning control rod (29).

7. The AI-powered intelligent recognition visual nasogastric tube according to claim 1, characterized in that: The upper and lower ends of the transmission channel (51) are respectively provided with an upper transmission roller (36) and a lower transmission roller (37). The mounting box (35) is equipped with a servo motor (38) and a tensioning wheel mechanism (39). The upper transmission roller (36), the servo motor (38) and the tensioning wheel mechanism (39) are all equipped with pulleys (40). Multiple pulleys (40) are connected by transmission belt (41). The lower transmission roller (37) is rotatably connected to the mounting box (35).

8. The AI-powered intelligent recognition visual nasogastric tube according to claim 7, characterized in that: The outer side of the upper transmission roller (36) is movably connected to a first mounting bracket (43) via a rotating shaft. The top end of the first mounting bracket (43) is fixedly connected to an internal threaded column (44). The top end of the internal threaded column (44) is threadedly connected to an adjusting bolt (42). The top end of the adjusting bolt (42) is rotatably connected to the mounting box (35) and extends out of the mounting box (35). The inner side of the mounting box (35) is provided with a first adjusting slide (45). The rotating shaft on the upper transmission roller (36) is slidably connected to the first adjusting slide (45). The tensioning wheel mechanism (39) includes a second adjusting slide (50) opened inside the mounting box (35). A tensioning pulley (47) is slidably connected inside the second adjusting slide (50). A second mounting bracket (46) is mounted on the outside of the tensioning pulley (47) via a rotating shaft. A tensioning spring (48) is fixedly connected to one side of the second mounting bracket (46). A fixing plate (49) is fixedly connected to the end of the tensioning spring (48). The fixing plate (49) is fixedly connected to the mounting box (35).

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