Visual stomach tube device, use method and system

Abstract

The invention provides a visual stomach tube device and a using method and system, and belongs to the technical field of medical instruments. An optical fiber bundle is arranged in the stomach tube body and comprises at least one transmission optical fiber; the input end of each transmission optical fiber in the optical fiber bundle is connected to the corresponding imaging module; the optical fiber bundle further comprises a limiting assembly, the limiting assembly has a first state and a second state, and in the first state, a gap is formed between the optical fiber bundle and the inner wall of the stomach tube body, so that the optical fiber bundle and the stomach tube body can move relatively; and in the second state, the limiting assembly hinders the relative movement of the light beam and the inner wall of the stomach tube body, so that the optical fiber bundle in the stomach tube body is limited. By limiting the position of the optical fiber bundle, the optical fiber is prevented from displacing or falling off in the stomach tube body, the stability of imaging quality is ensured, and the operation risk and difficulty in the intubation process are reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and in particular relates to a visualized gastric tube device, a use method and a system. Background Art

[0002] Gastric intubation is a medical procedure in which a tube is inserted into the stomach, usually through the nose or mouth, to deliver nutrition, medication, or drain stomach contents.

[0003] This technology is mainly used for patients who are unable to take in adequate nutrition through the mouth, such as those who are in a coma, critically ill patients or those who have difficulty swallowing.

[0004] There are two main methods of inserting a gastric tube: nasogastric intubation and oral intubation. Nasal intubation is often used for long-term or short-term nutritional support, while oral intubation is usually used for short-term use, such as during surgery or emergency situations. When intubating, medical staff usually use imaging examinations such as ultrasound or X-rays to confirm the correct position of the gastric tube to avoid it entering the airway by mistake.

[0005] Although gastric tube insertion is a common medical procedure, it is associated with risks and complications, such as aspiration, injury to the esophagus or stomach, and infection.

[0006] In the field, by combining the gastric tube with optical fiber, the optical guidance or visualization function has significantly improved the intubation success rate and operational safety.

[0007] Fiber optic technology can be used for real-time imaging during intubation and provide high-speed and stable network connections, helping medical staff better observe the intubation path and reduce the risk of misoperation. High-definition images can be used to monitor the status of the esophagus and stomach in real time.

[0008] However, there is still room for improvement in the current application of gastric tube combined with optical fiber.

[0009] During the intubation process, there is a lack of stable connection structure between the optical fiber and the lumen of the gastric tube. The optical fiber is easily displaced or even dislocated in the lumen of the gastric tube, resulting in a decrease in imaging quality. Blurred or incomplete images may appear, which may mislead the operator to insert the gastric tube into the trachea or bronchus by mistake, leading to serious complications such as pneumothorax and aspiration pneumonia.

[0010] If the optical fiber comes out, it may cause damage to the patient's body because the end is too hard, increasing the risk of complications.

[0011] In summary, how to provide a visualized gastric tube device that can limit the position of optical fiber is a technical problem that urgently needs to be solved. Summary of the invention

[0012] The object of the present invention is to overcome the deficiencies of the prior art and provide a visual gastric tube device, a usage method and a system. By means of a limiting component, the gap between the fiber optic bundle and the inner wall of the gastric tube body is filled, so as to limit the fiber optic bundle in the gastric tube body.

[0013] The present invention provides a visual gastric tube device, including a transparent gastric tube body, comprising: A fiber optic bundle is arranged in the gastric tube body, and the fiber optic bundle includes at least one transmission optical fiber; The input ends of the transmission optical fibers in the fiber optic bundle are connected to corresponding imaging modules; the fiber optic bundle is further provided with a limiting component, and the limiting component is used to fill the gap between the fiber optic bundle and the inner wall of the gastric tube body, so as to limit the fiber optic bundle in the gastric tube body.

[0014] Furthermore, the limiting component includes an airbag structure, and the airbag structure includes at least one sub-airbag arranged on the fiber optic bundle.

[0015] Furthermore, the sub-airbags are arranged adjacent to each other along the axial direction of the fiber optic bundle, or the sub-airbags are arranged at intervals along the axial direction of the fiber optic bundle.

[0016] Furthermore, the imaging module is rotationally connected to the fiber optic bundle through a rotating structure.

[0017] Furthermore, the gastric tube body is detachably connected with an inflatable top cover. When in a deflated state, the inflatable top cover can extend out of the gastric tube body and move inside the gastric tube body; when in an inflated state, the inflatable top cover can be stuck at the tube head end of the gastric tube body extending into the patient's body, so as to blunt the tube head end of the gastric tube body.

[0018] Furthermore, the fiber optic bundle further includes illumination optical fibers; The inflatable top cover is in an umbrella shape and can form a dome structure with both upper and lower surfaces being arc-shaped when inflated. The dome structure is fully transparent, or at least a transparent viewing window is arranged on the dome structure; A connecting piece is arranged on the lower surface of the dome structure; The illumination optical fibers are detachably connected to the dome structure through the connecting piece; The imaging module is detachably connected to the dome structure through the connecting piece.

[0019] The present invention provides a usage method realized by the visual gastric tube device as described in any one of the above, including the following steps: S1 Insert the fiber optic bundle into the gastric tube body; S2 Limit the fiber optic bundle in the gastric tube body through the limiting component.

[0020] Furthermore, S1 Insert the fiber optic bundle into the gastric tube body; S2 limits the position of the optical fiber bundle in the gastric tube body through the limiting component.

[0021] Further, S2 also includes connecting the lighting optical fiber to the dome structure through a connector; And / or, the imaging module is connected to the dome structure via a connector, and images are collected via the imaging module.

[0022] The present invention provides a system using the method described in any one of the above, the system comprising the visualization gastric tube device described in any one of the above.

[0023] Due to the adoption of the above technical solution, the present invention has the following advantages and positive effects compared with the prior art, as an example: The combination of the optical fiber bundle and the imaging module enables real-time visualization during the intubation process. Medical staff can clearly observe the intubation path to avoid entering the airway or other dangerous areas, significantly improving the success rate and safety of intubation. The imaging module can be adjusted at multiple angles through a rotating structure. Medical staff can flexibly adjust the position and angle of the imaging module as needed to obtain a more comprehensive field of view and improve the accuracy of the operation.

[0024] Furthermore, a limiting component is provided on the optical fiber bundle to fill the gap between the optical fiber bundle and the inner wall of the gastric tube body, thereby effectively fixing the position of the optical fiber bundle and preventing the optical fiber from shifting or falling out inside the gastric tube body, thereby avoiding internal damage caused by the hardness of the optical fiber end, ensuring the stability of the imaging quality, and reducing the operational risk and difficulty during the intubation process.

[0025] The inflation and deflation functions of the inflatable top cover make it more convenient during insertion and withdrawal. In the inflated state, the tip of the gastric tube can be blunted to prevent damage to the patient's internal organs during insertion, reducing the incidence of complications related to intubation. The inflatable top cover can flexibly connect the lighting fiber and the imaging module, providing additional lighting positions and angles, as well as additional positions and angles for collecting images.

[0026] The present invention solves the problem of unstable connection between optical fiber and gastric tube in the prior art, significantly improves the success rate, safety and patient comfort of intubation, while reducing equipment complexity, simplifying operation difficulty, and is suitable for a variety of clinical scenarios with wide applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A flowchart of the steps of the method of use provided by the present invention.

[0028] Figure 2A This is a schematic structural diagram of the limit assembly provided by the present invention.

[0029] Figure 2BSchematic diagram of the limiting component provided by the present invention, which is another embodiment.

[0030] Figure 3A Schematic diagram of the connection between the airbag structure and the optical fiber bundle provided by the present invention.

[0031] Figure 3B Schematic diagram of the connection between the airbag structure and the optical fiber bundle provided by the present invention, which is another embodiment.

[0032] Figure 4 Schematic diagram of the connection between the rotating structure and the imaging module provided by the present invention.

[0033] Figure 5 Schematic diagram of the connection between the inflatable top cover and the illumination optical fiber provided by the present invention.

[0034] Figure 6 Schematic diagram of the connection between the inflatable top cover and the imaging module provided by the present invention.

[0035] Figure 7 Schematic diagram of the connection between the inflatable top cover and the optical fiber bundle provided by the present invention, which is another embodiment.

[0036] Figure 8 For Figure 7 Schematic diagram of the application of the inflatable top cover equipped with a puncheon in

[0037] Explanation of reference numerals Visualization gastric tube device 100; Gastric tube body 200; Optical fiber bundle 300, transmission optical fiber 310, illumination optical fiber 320; Airbag structure 400, sub-airbag 410, folding arm 420, telescopic arm 430; Imaging module 500; Rotating structure 600, sphere 610, socket 620; Inflatable top cover 700, cavity 701, support rod 710, reinforcement component 720, puncheon 730. Detailed implementation manners

[0038] The technical solutions disclosed by the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the technical features or combinations of technical features described in the following embodiments should not be considered as isolated, and they can be combined with each other to achieve better technical effects. In the accompanying drawings of the following embodiments, the same reference numerals appearing in each drawing represent the same features or components, and can be applied to different embodiments. Therefore, once an item is defined in one drawing, it does not need to be further discussed in the subsequent drawings.

[0039] It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the conditions for the implementation of the invention. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the invention can produce and the purposes that can be achieved, should fall within the scope covered by the technical content disclosed by the invention. The scope of the preferred embodiments of the present invention includes additional implementations, where functions can be executed in a substantially simultaneous manner or in the reverse order according to the functions involved, rather than in the order described or discussed, which should be understood by those skilled in the technical field to which the embodiments of the present invention belong.

[0040] Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such technologies, methods, and devices should be regarded as part of the specification. In all examples shown and discussed here, any specific values should be construed as merely exemplary, not as limitations. Therefore, other examples of the exemplary embodiments may have different values.

[0041] The present invention provides a visualizable gastric tube device 100, as Figure 2A shown, including a gastric tube body 200 that is at least partially transparent.

[0042] An optical fiber bundle 300 is disposed inside the gastric tube body 200, and the optical fiber bundle 300 includes at least one transmission optical fiber 310.

[0043] The input ends of the respective transmission optical fibers 310 in the optical fiber bundle 300 are optically coupled to corresponding imaging modules 500.

[0044] In the case where the optical fiber bundle 300 includes more than one transmission optical fiber 310, an independent imaging module 500 is provided for each optical fiber.

[0045] Through optical coupling, the imaging module 500 focuses the light from the observation object onto the core of the transmission optical fiber 310, thereby achieving effective transmission of the image signal. The transmission optical fiber 310 then transmits the optical signal received from the imaging module 500 to a connected external camera or other imaging device. The external imaging device receives these optical signals and converts them into digital images.

[0046] Generally speaking, the imaging module 500 includes the following components: An illumination component that provides the required light, usually using an LED or laser light source.

[0047] An image acquisition component, such as an objective lens group, a spectrometer, a photoelectric sensor, a camera, or other imaging sensors, for acquiring images.

[0048] Specifically, the fiber optic bundle 300 is further provided with a limiting component, and the limiting component such as Figure 2A shown, the limiting component includes an airbag structure 400 capable of inflating and deflating. The airbag structure 400 includes at least one sub-airbag 410, and a through-hole is provided on the sub-airbag 410. The through-hole allows the fiber optic bundle 300 and the imaging module 500 to pass through, so that the sub-airbag 410 is connected to the fiber optic bundle 300.

[0049] According to the different gases filled, the airbag structure has a first state and a second state. In the first state, less gas is filled in the airbag structure, and there is a gap between the light beam and the inner wall of the gastric tube body, so that the two can move relatively.

[0050] In the second state, more gas is filled in the airbag structure, filling the gap between the fiber optic bundle 300 and the inner wall of the gastric tube body 200, hindering the relative movement between the light beam and the inner wall of the gastric tube body, thereby limiting the fiber optic bundle 300 in the gastric tube body 200.

[0051] When there are multiple sub-airbags 410, as Figure 3A shown, the sub-airbags 410 are adjacent to or, as Figure 3B shown, are spaced along the axial direction of the fiber optic bundle and are arranged on the fiber optic bundle 300, evenly distributed around the fiber optic bundle 300, ensuring the balanced support of the entire fiber optic bundle 300 in the gastric tube body 200, tightly fixing the position of the fiber optic bundle 300, and ensuring the stability and accuracy of the fiber optic bundle 300.

[0052] Each sub-airbag 410 is provided with an independent pipeline (not shown in the figure) and is inflated by a micro built-in air pump or an external air pump.

[0053] In another embodiment, as Figure 2B shown, the limiting component includes a folding arm 420, and the proximal end of the arm body is fixedly connected to the outer sheath of the fiber optic bundle. For example, the folding arm includes several folding sub-arms connected by hinges.

[0054] In the first state, the folding arm 420 is in a folded and stored state, and the support arm part is released or does not contact the inner wall of the gastric tube body. Under the obstruction formed by it, the fiber optic bundle can still be advanced or retracted in the gastric tube body.

[0055] In the second state, the folding arm 420 is in an unfolded state, contacting or resisting the inner wall of the gastric tube body to form a resistance, and this resistance makes the fiber optic bundle unable to be advanced or retracted in the gastric tube body, thereby achieving the limiting effect.

[0056] And / or, the limiting component includes a telescopic arm 430. In the first state, the telescopic arm is in a contracted state, with the overall length reduced, moving away from the inner wall of the gastric tube and approaching and retracting towards the optical fiber bundle.

[0057] In the second state, the telescopic arm 430 is in an extended state, with the length increased, extending to contact the inner wall of the gastric tube, forming a resistance, which hinders the relative movement between the light beam and the inner wall of the gastric tube, thereby limiting the optical fiber bundle within the gastric tube.

[0058] Optionally, the imaging module 500 is rotationally connected to the optical fiber bundle 300 through a rotating structure 600 to change the position of the imaging module 500.

[0059] As a typical implementation, the rotating structure 600 is an annular structure, and the annular structure can rotate around the optical fiber bundle 300, thereby changing the angle and position of the imaging module 500.

[0060] In another implementation, the rotating structure 600 is a ball-and-socket universal joint, including a socket 620 and a sphere 610 disposed within the socket 620. The imaging module 500 is disposed on the sphere 610, and by the rotation of the sphere 610 within the socket 620, the imaging module 500 is driven to rotate to achieve multi-angle adjustment.

[0061] In another implementation, the rotating structure 600 is a micro hinge joint, with a micro stepping motor integrated inside the hinge to drive the rotation at the hinge joint and control the angle of the imaging module 500.

[0062] The rotating structure 600 can adopt any one of the implementation structures including but not limited to the above, or can also adopt other similar forms.

[0063] Flexible optical fibers can be used to avoid damage to the optical fiber bundle 300 or the impact on the signal transmission quality when the imaging module 500 rotates.

[0064] Or a hollow channel (not shown in the figure) is provided within the rotating structure 600, and the optical fiber passes through the hollow channel to connect to the imaging module 500. For example, a through hole is reserved at the center of the sphere 610 of the ball-and-socket universal joint, and the optical fiber bundle 300 is fixed inside the sphere 610. When the sphere 610 rotates, only the outer shell moves, and the internal optical fiber remains relatively stationary, avoiding the direct action of external rotation on the optical fiber.

[0065] Also, for example, a hollow pipe is provided at the hinge rotating shaft, and the optical fiber bundle 300 passes through it and is directly connected to the imaging module 500.

[0066] For example, the annular structure is divided into an inner and an outer double ring: the outer ring rotates to drive the imaging module 500, and the inner ring fixes the optical fiber bundle 300. The optical fiber bundle 300 passes through the center of the inner ring and is connected to the imaging module 500 on the outer ring through a hollow rotating shaft.

[0067] Alternatively, the optical fiber bundle 300 is divided into a fixed section and a movable section. The fixed section is connected to an external device, and the movable section rotates synchronously with the imaging module 500. The optical fiber bundle 300 is wound around an axis in a spiral shape within the rotating structure 600 to provide a redundant length for rotation and relieve torsional stress.

[0068] Alternatively, a torsion-resistant braided layer, such as aramid fiber, is added outside the optical fiber bundle 300 to inhibit the spin stress caused by rotation.

[0069] Furthermore, it also includes an inflatable top cover 700 that can be switched between an inflated state and a deflated state.

[0070] Support rods 710 are provided on the inflatable top cover 700. An inflatable air passage and an air pump are provided inside the support rods 710. The support rods 710 also provide a hand-holding point for the user to operate the inflatable top cover 700.

[0071] In the deflated state, the size of the inflatable top cover 700 can extend outside the gastric tube body 200 and move within the gastric tube body 200, being inserted into or withdrawn from the gastric tube body 200.

[0072] In the inflated state, the size of the inflatable top cover 700 is larger than the inner diameter of the gastric tube body 200. When extending outside the gastric tube body 200, it can be stuck at the tube head end of the gastric tube body 200 extending into the patient's body, forming a tendency to cover the tube head end, thereby blunting the tube head end of the gastric tube body 200 and avoiding damage to the patient's internal organs caused by the tube head end.

[0073] As a typical implementation, as shown in the figure, the inflatable top cover 700 is in an umbrella shape and can form a dome structure in the inflated state. The upper surface and the lower surface of the dome structure both present upwardly convex arcs.

[0074] The dome structure can be a fully transparent structure to avoid blocking the view.

[0075] Alternatively, the dome structure is partially transparent. In the case of partial transparency, at least a transparent window is provided on the dome structure.

[0076] The optical fiber bundle 300 further includes illumination optical fibers 320.

[0077] Connectors are provided on the lower surface of the dome structure, and the aforementioned illumination optical fiber bundle is detachably connected to the dome structure through the connectors.

[0078] In the case of partial transparency of the dome structure, the lower surface connectors can be arranged corresponding to the positions of the transparent windows on the upper surface.

[0079] By way of example and not limitation, the connecting member is a card slot that matches the front end of the optical fiber bundle 300, and the optical fiber bundle 300 is connected to the dome structure by being inserted into the card slot.

[0080] Similarly, pin holes can be provided on the dome structure, and the front end of the optical fiber bundle 300 is equipped with corresponding pins and inserted into the holes.

[0081] Other detachable connections can also be achieved through magnetic connection, clamping connection, adsorption connection, etc., and will not be elaborated with examples one by one.

[0082] After the illumination optical fiber 320 and the inflatable top cover 700 are connected, the illumination optical fiber 320 is effectively protected under the dome structure and can protrude outside the tube head end as the inflatable top cover 700 moves, providing a new illumination position and angle without causing damage to the patient.

[0083] For the imaging module 500 connected with the transmission optical fiber 310, the imaging module 500 can also adopt a similar method to be detachably connected to the inflatable top cover 700 through the connecting member, and the inflatable top cover 700 has a tendency to cover the imaging module 500.

[0084] The movement of the inflatable top cover 700 can drive the displacement of the imaging module 500, thereby providing additional perspectives and position options for image acquisition and increasing the flexibility of image acquisition.

[0085] In specific implementation, the connection between the illumination optical fiber 320 and the inflatable top cover 700, and the connection between the imaging module 500 and the inflatable top cover 700 can be carried out simultaneously. For example, at least one connecting member is respectively provided on both sides of the support rod 710 of the inflatable top cover 700, the left connecting member connects the illumination optical fiber 320, and the right side connects the imaging module 500. Or the illumination optical fiber 320 and the imaging module 500 can also be respectively connected to the connecting members on the same side, and the illumination optical fiber 320 brightens the shooting area to facilitate the imaging module 500 to acquire images under more sufficient brightness conditions.

[0086] In another implementation manner, as Figure 7 shown, the inflatable top cover is a sphere with a cavity 701 provided on it. In the inflated state, the sphere is controlled by the support rod to move inside the gastric tube body. And in the fully inflated state, the size of the sphere matches the inner diameter of the tube head end of the gastric tube body and can just block the tube head end of the gastric tube body. And the cavity on the sphere is set to allow the optical fiber bundle to pass through. Specifically, when the optical fiber bundle here is a transmission optical fiber, the imaging module can pass through the cavity.

[0087] When the optical fiber bundle includes an illumination optical fiber, the illumination optical fiber can pass through the cavity.

[0088] A reinforcement component 720 is also provided on the sphere. One end of the reinforcement component is connected to the sphere, and the other end is connected to the optical fiber bundle, thereby establishing a connection between the inflatable top cover and the optical fiber bundle. In this embodiment, there is no need to provide the above-mentioned support rod, which is equivalent to the optical fiber bundle replacing the function of the support rod and providing a medium for controlling the inflatable top cover.

[0089] The connection between the reinforcement component and the optical fiber bundle is manually operated before intubation. By way of example and not limitation, it is a sticky connection.

[0090] By way of example, the reinforcement component can be an elastic cord that can be freely stretched. One end of the elastic cord is provided with a sticky patch that can be attached to the optical fiber bundle.

[0091] As Figure 8 shown, the inflatable top cover is also provided with a puncheon 730 having a sharp tip. The puncheon can extend into the body of the gastric tube. The hardness of the puncheon is set to be able to pierce the inflatable top cover, prompting the inflatable top cover to enter the deflated state and reduce its volume.

[0092] Optionally, it further includes an inner core, and the hardness of the inner core is at least greater than the hardness of the gastric tube body 200; the inner core can be bent or straightened, thereby guiding the gastric tube body 200 to deform.

[0093] As a typical implementation manner, the inner core includes a rod body and a deformation section connecting the rod body. The deformation section can be bent or straightened, and the deformation can be triggered by a remote control provided externally.

[0094] For example, the deformation section includes an electric spring, a shape memory alloy, and a micro heating component.

[0095] The remote control sends a signal to the micro heating component, and the micro heating component heats up the deformation section according to the received signal. The alloy bends or straightens when heated and maintains the new shape after cooling.

[0096] The inner core is connected to the optical fiber bundle 300 through a bundling member.

[0097] The present invention provides a usage method implemented by the visual gastric tube device 100 as described in any one of the above, as Figure 1 shown, including the following steps: S1 Insert the optical fiber bundle 300 into the gastric tube body 200.

[0098] Before inserting the optical fiber bundle 300 into the gastric tube body 200 in S1, it further includes, in the deflated state, inserting the inflatable top cover 700 into the gastric tube body 200 and extending it out of the tube head end; inflating the inflatable top cover 700 so that the inflatable top cover 700 is stuck on the tube head end of the gastric tube body 200 extending into the patient's body.

[0099] S2 limits the optical fiber bundle 300 inside the gastric tube body 200 through a limiting component.

[0100] S2 further includes connecting the illumination optical fiber 320 to the dome structure through a connecting piece.

[0101] And / or, connecting the imaging module 500 to the dome structure through a connecting piece. Depending on the position of the imaging module 500, the imaging module 500 may be inside the gastric tube body 200 or outside the tube head end for image acquisition.

[0102] Before inserting the optical fiber bundle 300 into the gastric tube body 200, S1 further includes Connecting the illumination optical fiber bundle to the sphere through the cavity of the sphere to achieve subsequent illumination operations at the tube head end, or connecting the imaging module connected to the transmission optical fiber bundle to the sphere through the cavity of the sphere to achieve subsequent image acquisition operations at the tube head end.

[0103] Connect the limiting component and the optical fiber bundle.

[0104] By moving the optical fiber bundle, drive the spherical inflatable top cover connected to the optical fiber bundle into the gastric tube body. While approaching the tube head end, perform an inflation operation on the inflatable top cover until the inflatable top cover exactly blocks the tube head end of the gastric tube body.

[0105] When the inflatable top cover needs to be withdrawn subsequently, it can be as Figure 8 shown. Pierce the sphere through the puncheon 730, so that the sphere quickly enters the deflated state from the fully inflated state. Subsequently, by moving the optical fiber bundle connected to the limiting component and the sphere, drive the inflatable top cover connected to the optical fiber bundle out of the gastric tube body.

[0106] After intubation, release the limitation of the optical fiber bundle 300 by the limiting component, and withdraw the optical fiber bundle 300 from the gastric tube body 200.

[0107] The present invention provides a system using the usage method described in any one of the above. The system includes the visual gastric tube device 100 as described above.

[0108] Within the scope of the target protection of the present disclosure, terms such as "including" should be default interpreted as inclusive or open-ended, rather than exclusive or closed, unless it is explicitly defined to have the opposite meaning. All technical, scientific or other terms conform to the meaning understood by those skilled in the art, unless it is defined to have the opposite meaning. Common terms found in the dictionary should not be interpreted too idealistically or too unrealistically in the context of relevant technical documents, unless the present disclosure explicitly defines it as such.

[0109] It is apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, in all respects, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Accordingly, all changes that fall within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

[0110] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A visual gastric tube device, comprising a transparent gastric tube body, characterized in that Comprising: A fiber optic bundle is disposed inside the gastric tube body, and the fiber optic bundle includes at least one transmission optical fiber; The input ends of the transmission optical fibers in the fiber optic bundle are connected to corresponding imaging modules; the fiber optic bundle further includes a limiting component, which has a first state and a second state. In the first state, there is a gap between the light beam and the inner wall of the gastric tube body, enabling relative movement between the two; in the second state, the limiting component obstructs the relative movement between the light beam and the inner wall of the gastric tube body, thereby limiting the fiber optic bundle inside the gastric tube body.

2. The visual gastric tube device according to claim 1, wherein: The limiting component includes an airbag structure, and the airbag structure includes at least one sub-airbag disposed on the fiber optic bundle; the sub-airbag can expand to fill the gap between the light beam and the inner wall of the gastric tube body, thereby limiting the fiber optic bundle inside the gastric tube body; The sub-airbags are arranged adjacent to each other along the axial direction of the fiber optic bundle, or the sub-airbags are arranged at intervals along the axial direction of the fiber optic bundle.

3. The visual gastric tube device according to claim 1, wherein: The limiting component can be unfolded to contact the inner wall of the gastric tube body, thereby limiting the fiber optic bundle inside the gastric tube body; The limiting component includes a folding arm, and the folding arm can be folded on the outer surface of the fiber optic bundle or extended to contact the inner wall of the gastric tube body; And / or, the limiting component includes a telescopic arm, and the telescopic arm can contract away from the inner wall of the gastric tube body or extend to contact the inner wall of the gastric tube body.

4. The visual gastric tube device according to claim 1, wherein: The imaging module is rotationally connected to the fiber optic bundle through a rotating structure.

5. The visual gastric tube device according to claim 1, wherein: The gastric tube body is detachably connected with an inflatable top cover. In the deflated state, the inflatable top cover can extend out of the gastric tube body and move inside the gastric tube body; in the inflated state, the inflatable top cover can be stuck at the tube head end of the gastric tube body, thereby blunting the tube head end of the gastric tube body.

6. The visual gastric tube device according to claim 5, wherein: The fiber optic bundle further includes at least one illumination optical fiber; The inflatable top cover is in an umbrella shape and can form a dome structure with both upper and lower surfaces being arc-shaped in the inflated state. The dome structure is fully transparent, or at least a transparent window is provided on the dome structure; A connecting member is provided on the lower surface of the dome structure; The illumination optical fiber is detachably connected to the dome structure through the connecting member; The imaging module is detachably connected to the dome structure through the connecting member.

7. A method of use implemented by the visualization gastric tube device according to any one of claims 1-6, characterized in that, Including the following steps: S1 Insert the fiber optic bundle into the gastric tube body; S2 Limit the fiber optic bundle inside the gastric tube body through the limiting component.

8. The usage method according to claim 7, wherein: Before S1 inserts the fiber optic bundle into the gastric tube body, it further includes, in the deflated state, inserting the inflatable top cover into the gastric tube body and extending it out of the tube head end; Inflate the inflatable top cover to fix it on the tube head end.

9. The usage method according to claim 7, wherein, S2 further includes connecting the illumination optical fiber to the dome structure through a connecting member; and / or connecting the imaging module to the dome structure through a connecting member and collecting images through the imaging module.

10. A visual gastric tube system, characterized in that: The system includes the visual gastric tube device according to claims 1-6.

Images