Visual nasointestinal tube indwelling device

Abstract

The utility model discloses a visual nasointestinal tube indwelling device which comprises a guide tube, the guide tube is used for sleeving a nasointestinal tube in a clearance mode, and the end, matched with a human body, of the guide tube is a near end; the bending control mechanism is used for adjusting the bending angle of the near end of the guide tube; the visual probe is arranged at the near end of the guide tube and is in wired or wireless connection with a display device; the air bag is arranged on the inner side of the near end of the guide tube and connected with an inflation and deflation pipeline, and when the inflation and deflation pipeline inflates the air bag, the air bag is full and can abut against the nasointestinal tube arranged on the inner side of the guide tube in a sleeved mode. The utility model has the advantages of high success rate of indwelling catheter, low risk of indwelling catheter and low cost.

Description

Technical Field

[0001] This utility model relates to the field of nasoenteric tube technology, and in particular to a visual nasoenteric tube placement device. Background Technology

[0002] Enteral nutrition, as a special dietary therapy, has solved a series of problems for critically ill patients with digestive tract diseases, weak gastric digestive function, aspiration, postoperative recovery, and patients requiring special treatment.

[0003] Currently, the four main methods of catheter placement commonly used in clinical practice are: 1. bedside manual blind insertion; 2. endoscopic-guided catheter placement; 3. ultrasound-guided catheter placement; and 4. X-ray positioning. However, traditional catheter placement methods still have drawbacks. For example, while bedside manual blind insertion is simple and easy, requiring no equipment, the overall success rate is low. It requires medication to promote bowel movement and carries the risk of accidental airway entry. Repeated blind insertions after an unsuccessful first attempt can damage the patient's nasal mucosa, esophagus, and stomach. Endoscopic-guided catheter placement generally requires general anesthesia, increasing the patient's anesthetic risks. The larger lumen of the endoscope increases the risk of gastrointestinal mucosal damage and bleeding during placement, and the procedure is lengthy and expensive. Ultrasound-guided catheter placement requires rigorous ultrasound training, which is lengthy and costly. Furthermore, ultrasound imaging is not always clear enough to detect gastrointestinal mucosal damage and bleeding during insertion. X-ray positioning requires repeated imaging, increasing patient costs and radiation exposure risks. Therefore, improving the success rate of catheter placement is an urgent clinical need.

[0004] To improve the success rate of tube placement, existing technologies utilize visualization devices such as cameras to observe the internal structures of the nasal cavity, pharynx, and gastrointestinal tract in real time, enabling precise insertion of nasogastric tubes into predetermined locations. Examples include a nasogastric tube device (application number: CN202123224799.7) and a visualization gastric tube (application number: CN202410308864.3). However, to reduce costs and minimize cross-infection, existing nasogastric tubes and other indwelling catheters are typically disposable. The aforementioned existing technologies are complex in structure and require modifications to existing nasogastric tubes and other indwelling catheters, significantly increasing the cost of use and manufacturing.

[0005] How to solve the above problems has become an urgent technical issue. Utility Model Content

[0006] The purpose of this invention is to provide a visual nasoenteric tube placement device that can improve the success rate of placement and has low risks and costs.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] This utility model provides a visual nasoenteric tube placement device, comprising:

[0009] A guide tube, wherein the guide tube is used to gap-fit ​​the nasoenteric tube and the end of the guide tube that fits into the human body is the proximal end;

[0010] The bending control mechanism is used to adjust the bending angle of the proximal end of the guide tube;

[0011] A visualization probe is located at the proximal end of a guide tube and is connected to a display device via wired or wireless means.

[0012] An airbag is located inside the proximal end of the guide tube and is connected to an inflation / deflation line. When the inflation / deflation line inflates the airbag, the airbag is inflated and can contact the nasoenteric tube that is fitted inside the guide tube.

[0013] Furthermore, the visualization probe includes a camera and a controller, wherein the camera is fixedly installed at the near end of the guide tube, and both the camera and the display device are wired or wirelessly connected to the controller.

[0014] Furthermore, a handle is sleeved on the distal end of the guide tube, and the controller is mounted on the handle.

[0015] Furthermore, the bending control mechanism includes a bending control disc and at least one pull line, wherein the bending control disc is rotatably mounted on a handle, and the two ends of the pull line are respectively connected to the bending control disc and the proximal end of the guide tube.

[0016] Furthermore, it also includes a lighting lamp, which is located near the end of the guide tube and is wired or wirelessly connected to the controller.

[0017] Furthermore, it also includes a suction tube, which is arranged along the length of the guide tube and the distal end of the suction tube passes through the side wall of the guide tube and the handle in sequence to form a suction port.

[0018] Furthermore, the inflation / deflation pipeline is arranged along the length of the guide tube, and the distal end of the inflation / deflation pipeline passes through the side wall of the guide tube and the handle in sequence to form an air port, and the air port is provided with a valve, a cap or a rubber stopper.

[0019] Furthermore, the controller includes a processing module, a wireless module, a lighting switch button, and a visual switch button. The wireless module, lighting switch button, and visual switch button are all wired or wirelessly connected to the processing module. The wireless module is wirelessly connected to the display device. The processing module, wireless module, lighting switch button, and visual switch button are all located on the handle.

[0020] Furthermore, the outer surface of the guide tube is provided with graduations.

[0021] Due to the adoption of the above structure, the beneficial effects of this utility model are as follows:

[0022] This invention features a guide tube equipped with a bending control mechanism and a visualization probe. The visualization probe collects images and transmits them to a display device, allowing real-time observation of the internal structures of the nasal cavity, pharynx, and gastrointestinal tract. The bending control mechanism adjusts the bending angle of the proximal end of the guide tube, enabling precise insertion into the predetermined position. Furthermore, an airbag is placed on the inner side of the proximal end of the guide tube. During insertion, the nasoenteric tube extends into the guide tube, and the airbag is inflated through the inflation / deflation system. This inflates the airbag, firmly pressing it against the nasoenteric tube and securing it within the guide tube. This allows the guide tube to carry the nasoenteric tube to the predetermined position, improving the success rate of insertion, reducing trauma and complications during the procedure, lowering the risk of insertion, and eliminating the need to modify existing nasoenteric tubes. After the airbag deflates, it can be separated from the nasoenteric tube and removed from the body, allowing for reuse and effectively reducing costs.

[0023] The present invention will become clearer from the following description and in conjunction with the accompanying drawings, which are used to explain the embodiments of the present invention. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2 This is an AA cross-sectional view of the airbag of this utility model when the nasoenteric tube is deflated and released.

[0027] Figure 3 A cross-sectional view of the airbag of this utility model when it is inflated and tightly wraps around the nasoenteric tube;

[0028] Figure 4 This is a structural block diagram of the present invention. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please refer to Figures 1 to 4 The present invention provides a visual nasoenteric tube placement device, comprising:

[0031] Guide tube 1, the guide tube 1 is used to gap-cover the nasoenteric tube and the end of the guide tube 1 that fits with the human body is the proximal end; the guide tube 1 is a soft tube or at least its proximal end is a soft end.

[0032] A bending control mechanism is used to adjust the bending angle of the proximal end of the guide tube 1;

[0033] A visualization probe is located at the proximal end of the guide tube 1 and is connected to a display device 3 via wired or wireless means.

[0034] The airbag 4 is located on the inner side of the proximal end of the guide tube 1 and is connected to an inflation / deflation pipe 5. When the inflation / deflation pipe 5 inflates the airbag 4, the airbag 4 is inflated and can abut against the nasoenteric tube that is fitted inside the guide tube 1, thereby fixing the nasoenteric tube inside the guide tube 1 and preventing relative sliding between the two, so that the guide tube 1 can carry the nasoenteric tube and insert it into the body at a preset position.

[0035] In use, the nasoenteric tube is first inserted into the guide tube 1. Then, the air bag 4 is inflated through the inflation and deflation pipe 5 until it is tightly pressed against the outer wall of the nasoenteric tube to fix the relative position of the nasoenteric tube and the guide tube 1. The guide tube 1 is then inserted into the human body. During the insertion process, images are collected by a visualization probe and transmitted to the display device 3 to observe the internal structure of the nasal cavity, pharynx, and gastrointestinal tract in real time. The bending angle of the proximal end of the guide tube 1 is adjusted at any time with the bending control mechanism until the guide tube 1 is precisely inserted into the predetermined position. At this time, the nasoenteric tube is also carried to the predetermined position by the guide tube 1. Finally, the air in the air bag 4 is expelled through the inflation and deflation pipe 5. After the air bag 4 deflates and releases the nasoenteric tube, the nasoenteric tube can be left in the human body while the guide tube 1 can be removed from the body. Furthermore, the guide tube 1 can be reused after disinfection, which effectively reduces costs.

[0036] Preferably, the airbag 4 is an annular airbag, the outer wall of which is fixedly connected to the inner wall of the guide tube 1. When the airbag 4 is deflated, the nasoenteric tube can pass through the middle of the airbag 4. When the airbag 4 is inflated, its inner wall can tightly wrap around the outer wall of the nasoenteric tube, resulting in good fixation. The diameter of the proximal end of the guide tube 1 is locally increased and bulges out in an arc shape, thereby providing sufficient space to accommodate the airbag 4 and the visualization probe.

[0037] Preferably, the display device 3 is a display screen.

[0038] In this invention, the visualization probe includes a camera 6 and a controller. The camera 6 is fixedly mounted at the proximal end of the guide tube 1. Both the camera 6 and the display device 3 are wired or wirelessly connected to the controller. The camera 6 is fixedly fitted into a groove on the proximal end face of the guide tube 1. The data collected by the camera 6 is transmitted to the display device 3 for display via the controller.

[0039] In this invention, a handle 7 is sleeved on the distal end of the guide tube 1, and the controller is mounted on the handle 7 for easy gripping and operation. Specifically, the handle 7 is a hollow shell structure, the guide tube 1 coaxially passes through the handle 7, and the distal end of the guide tube 1 is exposed or flush with the distal end of the handle 7, so that both ends of the guide tube 1 are open, ensuring that the nasoenteric tube can be inserted into the interior of the guide tube 1 from the distal end of the guide tube 1.

[0040] In this invention, the bending control mechanism includes a bending control disc 16 and at least one pull wire 17. The bending control disc 16 is rotatably mounted on a handle 7, and the two ends of the pull wire 17 are respectively connected to the bending control disc 16 and the proximal end of the guide tube 1. The bending control disc 16 is rotatably connected to the handle 7 via a pivot located at its center. Rotating the bending control disc 16 causes the pull wire 17 to move away from the visualization probe, which deforms and bends the proximal end of the guide tube 1, thereby changing the bending angle of the proximal end of the guide tube 1.

[0041] Preferably, please refer to Figure 2 and Figure 3 The pull wire 17 is fitted into a cavity in the side wall of the guide tube 1 with a gap corresponding to the guide tube 1, and the proximal end of the pull wire 17 is fixedly connected to the proximal end of the guide tube 1.

[0042] Optionally, there are two pull wires 17, which are fixedly connected to both sides of the bending control plate 16. By rotating the bending control plate 16, the proximal end of the guide tube 1 can be deformed and bent towards the corresponding side through the pull wires 17, thereby changing the bending direction and angle of the proximal end of the guide tube 1.

[0043] This invention also includes a lighting lamp 8, which is located at the proximal end of the guide tube 1 and is connected to the controller via wired or wireless means. The lighting lamp 8 is fixedly fitted into a groove on the proximal end face of the guide tube 1, providing a light source for the visualization probe, illuminating the inside of the human body for easy observation.

[0044] This invention also includes a suction tube 9, which is arranged along the length of the guide tube 1, with its distal end extending sequentially from the side wall of the guide tube 1 and the handle 7 to form a suction port 10. The suction tube 9 can be connected to a negative pressure suction line through the suction port 10 to draw out gastric contents, thereby providing a clear field of view for the visualization probe. It can also be connected to a water inlet line for cleaning the lens, similarly providing a clear field of view for the visualization probe.

[0045] Preferably, please refer to Figure 2 and Figure 3 The portion of the suction pipe 9 corresponding to the guide pipe 1 is a cavity opened in the side wall of the guide pipe 1 or a pipe buried in the side wall of the guide pipe 1.

[0046] In this invention, the inflation / deflation pipe 5 is arranged along the length of the guide tube 1, and the distal end of the inflation / deflation pipe 5 passes through the side wall of the guide tube 1 and the handle 7 in sequence to form an air port 11. The air port 11 is equipped with a valve, a cap, or a rubber stopper to prevent the gas in the airbag 4 from being discharged to the outside unplanned. The air port 11 is used to connect to the air supply equipment. The airbag 4 is inflated through the inflation / deflation pipe 5 to make the airbag 4 full, thereby wrapping and fixing the nasoenteric tube, and then the tube is inserted. After the tube is in place, the gas in the airbag 4 is discharged to the outside in sequence through the inflation / deflation pipe 5 and the air port 11. After the airbag 4 deflates and releases the nasoenteric tube, the guide tube 1 is slowly pulled out, which can leave the nasoenteric tube alone in the human body.

[0047] Preferably, please refer to Figure 2 and Figure 3 The part of the inflation / exhaust pipe 5 corresponding to the guide pipe 1 is a cavity opened in the side wall of the guide pipe 1 or a pipe buried in the side wall of the guide pipe 1.

[0048] In this invention, the controller includes a processing module 12, a wireless module 13, a lighting switch button 14, and a visual switch button 15. The wireless module 13, lighting switch button 14, and visual switch button 15 are all wired or wirelessly connected to the processing module 12. The wireless module 13 is wirelessly connected to the display device 3. All three modules are mounted on the handle 7. Specifically, pressing the lighting switch button 14 triggers the processing module 12 to receive a corresponding signal and control the lighting lamp 8 to turn on. Pressing the visual switch button 15 triggers the processing module 12 to receive a corresponding signal and activate the camera 6 and the wireless module 13. The camera 6 acquires image data, which is processed by the processing module 12 and then transmitted to the display device 3 via the wireless module 13 for display. The wireless module 13 is a Bluetooth, ZigBee, or WiFi module.

[0049] Optionally, the handle 7 is also provided with a rechargeable battery to power the visualization probe and the lighting lamp 8, and a charging port is provided on the outer wall of the handle 7 for charging the rechargeable battery.

[0050] In this invention, the outer surface of the guide tube 1 is provided with a scale, which makes it easier for doctors to determine the depth of the guide tube 1 inserted into the human body.

[0051] In use, the nasoenteric tube is first inserted into the guide tube 1 and passes through the middle of the air bag 4. Then, the air bag 4 is inflated through the inflation and deflation pipe 5 until it tightly wraps around the nasoenteric tube, thus fixing the nasoenteric tube inside the guide tube 1. Then, the handle 7 is held to insert the proximal end of the guide tube 1 into the human body. During the insertion process, image data is collected and processed by the processing module 12, and then transmitted to the display device 3 via the wireless module 13 for display. The doctor observes the internal structure of the nasal cavity, pharynx, and gastrointestinal tract in real time, and rotates the bending control disc 16 to pull the pull line 17, so that the bending direction and angle of the proximal end of the guide tube 1 are adjusted until the guide tube 1 is precisely inserted into the predetermined position. At this time, the nasoenteric tube is also carried to the predetermined position by the guide tube 1. Finally, the air in the air bag 4 is expelled, the air bag 4 deflates and releases the nasoenteric tube, and the guide tube 1 is withdrawn from the body, leaving the nasoenteric tube alone in the human body. Therefore, this invention can improve the success rate of catheter placement, help reduce trauma and complications during the operation, reduce the risk of catheter placement, and does not require modification of existing nasoenteric tubes. It is also reusable, effectively reducing costs.

[0052] The preferred embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above. Devices and structures not described in detail herein should be understood as being implemented in a conventional manner within the art. Any person skilled in the art can make many possible variations and modifications to the technical solutions of this utility model using the disclosed methods and techniques, or modify them into equivalent embodiments with equivalent changes, without departing from the scope of the technical solution of this utility model. This does not affect the essential content of this utility model. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the content of the technical solution of this utility model, still fall within the protection scope of the technical solution of this utility model.

Claims

1. A visual nasoenteric tube placement device, characterized in that, include: A guide tube (1) is used to gap-fit ​​the nasoenteric tube and the end of the guide tube (1) that fits into the human body is the proximal end; A bending control mechanism is used to adjust the bending angle of the proximal end of the guide tube (1); A visualization probe is located at the proximal end of the guide tube (1) and is wired or wirelessly connected to a display device (3); An air bladder (4) is located on the inside of the proximal end of the guide tube (1) and is connected to an inflation / deflation pipe (5). When the inflation / deflation pipe (5) inflates the air bladder (4), the air bladder (4) is inflated and can come into contact with the nasoenteric tube that is fitted inside the guide tube (1).

2. The visual nasoenteric tube placement device according to claim 1, characterized in that: The visualization probe includes a camera (6) and a controller. The camera (6) is fixedly installed at the near end of the guide tube (1). The camera (6) and the display device (3) are both wired or wirelessly connected to the controller.

3. The visual nasoenteric tube placement device according to claim 2, characterized in that: The distal end of the guide tube (1) is fitted with a handle (7), and the controller is mounted on the handle (7).

4. The visual nasoenteric tube placement device according to claim 3, characterized in that: The bending control mechanism includes a bending control disc (16) and at least one pull line (17), wherein the bending control disc (16) is rotatably mounted on the handle (7), and the two ends of the pull line (17) are respectively connected to the bending control disc (16) and the proximal end of the guide tube (1).

5. A visual nasoenteric tube placement device according to claim 2, 3, or 4, characterized in that: It also includes a lighting lamp (8), which is located near the end of the guide tube (1) and is wired or wirelessly connected to the controller.

6. A visual nasoenteric tube placement device according to claim 3 or 4, characterized in that: It also includes a flushing tube (9), which is arranged along the length of the guide tube (1) and the distal end of the flushing tube (9) passes through the side wall of the guide tube (1) and the handle (7) in sequence to form a flushing port (10).

7. A visual nasoenteric tube placement device according to claim 3 or 4, characterized in that: The inflation / deflation pipe (5) is arranged along the length of the guide pipe (1), and the far end of the inflation / deflation pipe (5) passes through the side wall of the guide pipe (1) and the handle (7) in sequence to form an air port (11). The air port (11) is provided with a valve, a cap or a rubber stopper.

8. A visual nasoenteric tube placement device according to claim 3 or 4, characterized in that: The controller includes a processing module (12), a wireless module (13), a lighting switch button (14), and a visual switch button (15). The wireless module (13), the lighting switch button (14), and the visual switch button (15) are all wired or wirelessly connected to the processing module (12). The wireless module (13) is wirelessly connected to the display device (3). The processing module (12), the wireless module (13), the lighting switch button (14), and the visual switch button (15) are all mounted on the handle (7).

9. A visual nasoenteric tube placement device according to any one of claims 1 to 4, characterized in that: The outer surface of the guide tube (1) is provided with a scale (2).

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