Nasal tracheal catheter with visual navigation function and adjusting mechanism

Abstract

The invention belongs to the technical field of medical instruments, particularly relates to a nasal tracheal catheter with a visual navigation function and an adjusting mechanism, and aims to overcome the defects that in the prior art, in the intubation process, a trachea cannot be bent and adjusted at will, and in the intubation process, the intubation condition cannot be visually observed. The trachea guiding tube is fixedly sleeved with a lantern ring, a bent tube is fixedly installed at the bottom end of the trachea guiding tube, and a movable tube is fixedly installed at one end of the bent tube. In the process of intubation of a patient, the moving direction of the movable tube can be adjusted according to actual needs, and therefore in the process of intubation, the trachea guiding tube can be conveniently inserted into the bent tube. According to the multifunctional intubation device, good convenience can be achieved, meanwhile, in the intubation process, the camera can be matched with the display screen, pictures can be shot, and good convenience can be achieved in the intubation process of a patient.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a nasotracheal tube with visual navigation function and an adjusting mechanism. Background Art

[0002] As a tool for managing the patient's airway, the endotracheal tube has been widely used in various fields of medicine. Due to the anatomical variations in the airways of different patients, although doctors can see the patient's glottis using traditional laryngoscopes and video laryngoscopes, it is often difficult to insert the endotracheal tube into the patient's glottis.

[0003] Therefore, manufacturers make endotracheal tubes with universal pre-set curvatures, trying to match the curvature of the endotracheal tube with the curvature of the patient's respiratory tract to help doctors insert the endotracheal tube into the patient's glottis or trachea. However, due to the individual differences in the anatomical structure of each patient's respiratory tract, doctors still face the problem of difficulty in inserting this endotracheal tube when using it. The problems are as follows: 1. At present, when the catheter is pre-set to a curvature, it will still be hindered by the physiological curvature of the nasal cavity and throat when inserted into the patient's throat, resulting in certain inconveniences during intubation; 2. Furthermore, during the intubation process, there is no corresponding video guidance, which makes it impossible to directly observe the situation in the patient's throat and trachea during the intubation process, which will cause certain obstacles to the intubation process.

[0004] In view of the above problems, the present invention document proposes a nasotracheal tube and an adjustment mechanism with visual navigation function. Summary of the invention

[0005] The present invention provides a nasotracheal tube and an adjustment mechanism with a visual navigation function, which solves the shortcomings of the prior art that the trachea cannot be arbitrarily adjusted for bending during intubation and the intubation situation cannot be intuitively observed during intubation.

[0006] The present invention provides the following technical solutions: A nasotracheal tube with a visual navigation function comprises a tracheal guide tube, a collar is fixedly sleeved on the tracheal guide tube, a bending tube is fixedly installed at the bottom end of the tracheal guide tube, a moving tube is fixedly installed at one end of the bending tube, a guiding ring is fixedly installed at one end of the moving tube, and a docking ring is fixedly installed at the top end of the tracheal guide tube. The nasotracheal tube also includes: The bending mechanism includes a support rod and a toggle rod. One end of the support rod extends into the bending tube and is connected to the toggle rod through a rotating assembly. The other end of the support rod is equipped with a limit assembly. The support rod is also connected to a clamping mechanism clamped with a docking ring. The display mechanism comprises a supporting assembly installed on the clamping mechanism, a display screen is installed on the supporting assembly, a camera is fixedly installed on one end of the toggle rod, and the camera is electrically connected to the display screen.

[0007] In one possible design, the rotating assembly includes a connecting shaft fixedly mounted on one end of a support rod, a connecting frame is rotatably connected to the connecting shaft, the other end of the toggle rod is fixedly connected to one side of the connecting frame, a pull rope is fixedly mounted on the connecting frame, the pull rope passes through the limit assembly and cooperates with the limit assembly.

[0008] In one possible design, the limiting assembly includes an arc-shaped guide plate fixedly mounted on the other end of the support rod, the arc-shaped guide plate is provided with an arc-shaped groove, the pull rope is laid in the arc-shaped groove, and an arc-shaped baffle plate is fixedly mounted on the arc-shaped guide plate for wrapping and limiting the pull rope, and the arc-shaped baffle plate can prevent the pull rope from moving out of the arc-shaped groove.

[0009] In a possible design, the clamping mechanism includes a clamping ring mounted on the docking ring, a support plate is fixedly installed on the inner side of the clamping ring, a support rod passes through the support plate and is fixedly connected to the support plate, a pull rope passes through the support plate and is slidably connected to the support plate, a fixed splint is fixedly installed on one side of the bottom of the clamping ring, a first handle frame is fixedly connected to one side of the fixed splint, the first handle frame is connected to the same second handle frame through two sliding components, anti-slip pads are fixedly installed on the sides of the first handle frame and the second handle frame that are away from each other, a movable splint is fixedly installed on one side of the second handle frame, the movable splint cooperates with the fixed splint for clamping the docking ring, a hook is rotatably connected to one side of the first handle frame, a clamping shaft is fixedly installed on one side of the second handle frame, and the hook is clamped to the clamping shaft.

[0010] In a possible design, the sliding assembly includes a limiting tube fixedly mounted on an inner wall of one side of the first handle frame, a limiting rod slidably connected inside the limiting tube, one end of the limiting rod extends to the outside of the limiting tube and is fixedly connected to an inner wall of one side of the second handle frame, a second compression spring located outside the limiting tube is sleeved on the limiting rod, and two ends of the second compression spring are respectively fixedly connected to one end of the limiting tube and an inner wall of one side of the second handle frame.

[0011] In one possible design, the support assembly includes a support frame fixedly mounted on a retaining ring, a mounting frame fixedly mounted on one side of the support frame, a connecting arm rotatably connected to the mounting frame, one side of the connecting arm is fixedly connected to the display screen, a transmission component is penetrated through the connecting arm, and one side of the transmission component extends into the support frame and is connected to the inner wall of the support frame.

[0012] In a possible design, the transmission component includes a limit plate fixedly installed in the support frame, a movable plate is slidably connected to the limit plate, the top of the movable plate extends to the top of the support frame, pull rods are fixedly installed on the top of both sides of the movable plate, and the same stop shaft is fixedly installed on the side where the two pull rods are close to each other, and the stop shaft passes through the connecting arm and cooperates with the connecting arm for transmission.

[0013] In a possible design, a mounting plate is fixedly mounted on one side of the movable plate, a plug rod is slidably connected to the mounting plate, a plurality of holes are evenly spaced on the limit plate, the plug rod is movably engaged with the plurality of holes, a tension spring located above the mounting plate is sleeved on the plug rod, and the top and bottom ends of the tension spring are fixedly connected to the top of the plug rod and the top of the mounting plate, respectively.

[0014] An adjustment mechanism for a nasal endotracheal tube with a visual navigation function is applied to the nasal endotracheal tube with a visual navigation function as described above, comprising a connecting plate fixedly mounted on a pull rope, and also comprising a limit frame, the limit frame fixedly mounted on the top of a support plate, a limit slide slidably connected to the limit frame, the limit slide fixedly mounted on one side of the connecting plate, the connecting plate and the limit slide are penetrated and connected with the same clamping component, a clamping hole is provided on the limit frame, the clamping component penetrates the clamping hole and is movably clamped with the clamping hole.

[0015] In a possible design, the clamping mechanism includes a moving rod, which passes through the connecting plate, the limiting slide and the clamping hole respectively and is slidably connected with the limiting slide and the connecting plate. A positioning ring is fixedly sleeved on the moving rod, and the positioning ring is movably clamped with the clamping hole. A first compression spring located on one side of the connecting plate is sleeved on the moving rod, and two ends of the first compression spring are fixedly connected to one side of the connecting plate and one end of the moving rod respectively.

[0016] In the present invention, the movable tube is first inserted along the nasal cavity of the patient, and then the toggle rod is inserted into the tracheal guide tube, and the clamping ring is clamped with the docking ring, and then the second handle frame can be pressed to make the second handle frame approach the first handle frame, and the docking ring can be clamped and positioned by using the fixed clamping plate and the movable clamping plate, and then the hook can be rotated to make the hook and the clamping shaft be clamped, so that the first handle frame and the second handle frame can be limited, during the intubation process, the camera can shoot the picture during the intubation process, and then it can be transmitted to the display screen, and when watching the display screen, the movable plate can be driven horizontally in advance to drive the two pull rods to move horizontally, and at this time, the blocking shaft can be driven to move, and when the blocking shaft moves, the connecting arm can be driven to rotate, so that the display screen can be rotated and adjusted, so that during the intubation process, the display screen can be rotated and adjusted so that the medical staff can watch the image displayed on the display screen, and after the display screen is rotated to the required angle position, the insertion rod can be released at this time, and the tension spring in the stressed state can drive the insertion rod to move downward, so that the insertion rod is inserted into the corresponding jack, so that the movable plate can be positioned, and the intubation can be performed. Through the cooperation of the two pull rods and the blocking shaft, the connecting arm can be positioned, so that the display screen can be stably limited and braked, so that during the intubation process, the patient's throat or nasal cavity and other special positions can be accurately observed, and when the movable tube needs to be rotated and adjusted, the movable rod can be pulled to move the positioning ring out of the clamping hole, and then the pull rope can be driven to move by longitudinally moving the connecting plate, so that the toggle rod can be rotated and adjusted through the connecting frame, and when the toggle rod is rotated, the movable tube can be pushed to move, so that the bending tube can be bent, so when the movable tube is inserted into the patient's throat or nasal cavity, the moving direction of the movable tube can be adjusted as needed, so that during the intubation process, it can have good convenience, and after the rotation adjustment of the movable tube is completed, the movable rod can be released at this time, and the first compression spring in a stressed state can drive the movable rod to move in the opposite direction, move the positioning ring to the clamping hole and clamp it with the clamping hole, so that the connecting plate can be positioned to prevent the pull rope from moving at will, so that the connecting frame can be stably positioned, so that the toggle rod can have stable supporting performance.

[0017] It is to be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the invention.

[0018] Beneficial effects: In the present invention, the bending mechanism is arranged, and the connecting frame can be driven to rotate and adjust with the connecting shaft as the axis by pulling the pull rope, so that the toggle rod can be driven to rotate. When the toggle rod rotates, the movable tube can be pushed to move, so that the bending tube can be bent. Therefore, when the movable tube is inserted into the throat or nasal cavity of the patient, the moving direction of the movable tube can be adjusted as needed, so that the intubation process can be convenient. In the present invention, by means of the provided clamping mechanism, after the snap ring is sleeved on the docking ring, the second handle frame can be pressed to make the second handle frame approach the first handle frame, so that the fixed clamping plate and the movable clamping plate can be used to clamp the docking ring, so that the snap ring can be stably sleeved on the docking ring, and then the hook can be turned over to clamp the hook and the clamping shaft, so that the first handle frame and the second handle frame can be limited, so that the movable clamping plate and the fixed clamping plate can stably clamp and position the docking ring; The sliding assembly can utilize the sliding cooperation of the limiting tube and the limiting rod to keep the first handle frame and the second handle frame in sliding connection, and after the clamping cooperation between the hook and the clamping shaft is released, the first handle frame and the second handle frame can be moved away from each other under the elastic force of the two second compression springs, so that the fixed clamping plate and the movable clamping plate release the clamping of the docking ring; At the same time, after the display screen is rotated to the required angle, the plug rod can be released, and the tension spring in the stressed state can drive the plug rod to move downward, so that the plug rod is inserted into the corresponding plug hole, so that the movable plate can be positioned, that is, the connection arm can be positioned through the cooperation of the two pull rods and the stop shaft, so that the display screen can be stably limited and braked; In the present invention, the display mechanism is provided, and the mounting frame and the connecting arm are rotatably connected to support the display screen, so that the angle of the display screen can be adjusted conveniently, so that when the camera is used to intubate the patient, the throat or the nasal cavity can be photographed, so that the movable tube can be rotated by controlling the toggle rod, so that the movable tube can smoothly pass through the throat or the nasal cavity; The two pull rods are driven to move horizontally by the horizontal driving moving plate, which can drive the blocking shaft to move. When the blocking shaft moves, the connecting arm can be driven to rotate, so that the display screen can be rotated and adjusted, so that during the intubation process, the display screen can be rotated and adjusted so that medical staff can view the image displayed on the display screen; In the present invention, by means of the provided clamping mechanism, the positioning ring can be moved out of the clamping hole by pulling the moving rod, and then the pull rope can be driven to move by longitudinally moving the connecting plate, so that the toggle rod can be rotationally adjusted through the connecting frame, thereby the moving tube can be rotationally adjusted, and after the rotation adjustment of the moving tube is completed, the moving rod can be released, and the first compression spring in a stressed state can drive the moving rod to move in the opposite direction, moving the positioning ring into the clamping hole and clamping it with the clamping hole, so that the connecting plate can be positioned, preventing the pull rope from moving arbitrarily, so that the connecting frame can be stably positioned.

[0019] During the process of intubating a patient, the present invention can adjust the moving direction of the mobile tube according to actual needs, so that the process of intubation can be convenient. At the same time, during the process of intubation, the camera can be used in conjunction with the display screen to capture the picture, so that the process of intubating a patient can be convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A three-dimensional schematic diagram of the first-view structure of a nasotracheal tube with a visual navigation function and an adjustment mechanism provided by an embodiment of the present invention; Figure 2 A three-dimensional schematic diagram of the second viewing angle structure of a nasotracheal tube with a visual navigation function and an adjustment mechanism provided by an embodiment of the present invention; Figure 3 A three-dimensional schematic diagram of the connection structure of the trachea, cannula, bending tube and docking ring of a nasotracheal tube with a visual navigation function provided by an embodiment of the present invention; Figure 4 A three-dimensional schematic diagram of the first-view structure of a support rod, a connecting shaft, a connecting frame and a toggle rod of a nasotracheal tube with a visual navigation function provided by an embodiment of the present invention; Figure 5 A three-dimensional schematic diagram of the second-view structure of a support rod, a connecting shaft, a connecting frame and a toggle rod of a nasotracheal tube with a visual navigation function provided by an embodiment of the present invention; Figure 6 A bottom-up three-dimensional schematic diagram of a connection structure of a fixed splint and a movable splint of a nasotracheal tube with a visual navigation function provided by an embodiment of the present invention; Figure 7 A three-dimensional schematic diagram of a connection structure of a support frame, a connecting arm and a display screen of a nasotracheal tube with a visual navigation function provided by an embodiment of the present invention; Figure 8 A three-dimensional schematic diagram of a connection structure of a limit frame, a pull rod and a positioning ring of an adjustment structure provided in an embodiment of the present invention.

[0021] Reference numerals: 1. Tracheal guide tube; 2. Bending tube; 3. Moving tube; 4. Guide ring; 5. Sleeve ring; 6. Clamp ring; 7. Support plate; 8. Support rod; 9. Connecting shaft; 10. Connecting frame; 11. Toggle rod; 12. Camera; 13. Pull rope; 14. Docking ring; 15. Arc guide plate; 16. Arc baffle; 17. Connecting plate; 18. Limiting slide plate; 19. Limiting frame; 20. Clamp hole; 21. Moving rod; 22. Positioning ring; 23. First compression spring Spring; 24, support frame; 25, mounting frame; 26, connecting arm; 27, display screen; 28, limit plate; 29, movable plate; 30, pull rod; 31, mounting plate; 32, plug rod; 33, socket; 34, tension spring; 35, fixed splint; 36, first handle frame; 37, limit tube; 38, limit rod; 39, second handle frame; 40, movable splint; 41, second compression spring; 42, hook; 43, clamping shaft; 44, anti-slip pad. DETAILED DESCRIPTION

[0022] The embodiments of the present invention are described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0023] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms, "connection" and "installation" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. In addition, "connection" can be a direct connection or an indirect connection through an intermediate medium. Among them, "fixed" means that they are connected to each other and the relative position relationship after connection remains unchanged. The directional terms mentioned in the embodiments of the present invention, such as "inside", "outside", "top", "bottom", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0024] In the embodiments of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0025] In the embodiments of the present invention, "and / or" is only a description of the association relationship of the associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0026] References to "one embodiment" or "some embodiments" etc. described in this specification mean that a particular feature, structure or characteristic described in conjunction with the embodiment is included in one or more embodiments of the present invention. Thus, the phrases "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. appearing in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0027] Example 1: Reference Figure 1-8 A tracheal tube comprises a tracheal guide tube 1, a bite ring 5 is fixedly sleeved on the tracheal guide tube 1, a bending tube 2 is fixedly installed at the bottom end of the tracheal guide tube 1, a moving tube 3 is fixedly installed at one end of the bending tube 2, a guide ring 4 is fixedly installed at one end of the moving tube 3, and a docking ring 14 is fixedly installed at the top end of the tracheal guide tube 1. In addition, the nasotracheal tube also includes a bending mechanism and a display mechanism.

[0028] like Figure 4 As shown, the design of the bending mechanism is as follows: it is mainly composed of a support rod 8 and a toggle rod 11. One end of the support rod 8 extends into the bending tube 2 and is connected to the toggle rod 11 through a rotating assembly. Specifically, the rotating assembly includes a connecting shaft 9 fixedly mounted on one end of the support rod 8, a connecting frame 10 is rotatably connected to the connecting shaft 9, and the other end of the toggle rod 11 is fixedly connected to one side of the connecting frame 10. A pull rope 13 is fixedly mounted on the connecting frame 10, and the pull rope 13 is used to subsequently regulate the rotation of the connecting frame 10. A limit assembly is installed at the other end of the support rod 8, and the limit assembly is mainly composed of an arc-shaped guide plate 15 fixedly mounted on the other end of the support rod 8, an arc-shaped groove is opened on the arc-shaped guide plate 15, and the pull rope 13 is set in the arc-shaped groove. At the same time, an arc-shaped baffle 16 is fixedly mounted on the arc-shaped guide plate 15, and the arc-shaped baffle 16 can prevent the pull rope 13 from moving out of the arc-shaped groove. The support rod 8 is also connected to a clamping mechanism, which is mainly composed of a clamping ring 6 mounted on a docking ring 14, a support plate 7 is fixedly installed on the inner side of the clamping ring 6, the support rod 8 passes through the support plate 7 and is fixedly connected to the support plate 7, and the pull rope 13 passes through the support plate 7 and is slidably connected to the support plate 7.

[0029] like Figure 7As shown, the display mechanism is designed as follows: it is mainly composed of a support assembly mounted on the clamping mechanism, and the support assembly is mainly composed of a support frame 24 fixedly mounted on the clamping ring 6. A mounting frame 25 is fixedly mounted on one side of the support frame 24, and a connecting arm 26 is rotatably connected to the mounting frame 25, and a display screen 27 is fixedly mounted on one side of the connecting arm 26. A camera 12 is fixedly mounted on one end of the toggle lever 11, and the camera 12 is electrically connected to the display screen 27, so that the picture taken by the camera 12 can be displayed on the display screen 27 in real time.

[0030] When in use, the connecting frame 10 can be driven to rotate and adjust around the connecting shaft 9 by pulling the pull rope 13, thereby driving the toggle rod 11 to rotate. When the toggle rod 11 rotates, the moving tube 3 can be pushed to move, thereby bending the bending tube 2. Therefore, when the moving tube 3 is inserted into the throat or nasal cavity of the patient, the moving direction of the moving tube 3 can be adjusted as needed, so that the intubation process can be convenient.

[0031] like Figure 5 As shown, in addition, in order to facilitate the angle adjustment of the display screen 27, a transmission component can be set on the connecting arm 26. The transmission component is mainly composed of a limit plate 28 fixedly installed in the support frame 24, and a mobile plate 29 is slidably connected to the limit plate 28, and the top of the mobile plate 29 extends to the top of the support frame 24. Pull rods 30 are fixedly installed on the top of both sides of the mobile plate 29, and the same stop shaft is fixedly installed on the side where the two pull rods 30 are close to each other. The stop shaft passes through the connecting arm 26 and cooperates with the connecting arm 26 in transmission. By driving the mobile plate 29 horizontally, the two pull rods 30 are driven to move horizontally, and the stop shaft can be driven to move. When the stop shaft moves, the connecting arm 26 can be driven to rotate, so that the display screen 27 can be rotated and adjusted. After adjusting to the required angle, the mobile plate 29 can be positioned by using a mounting plate 31 installed on one side of the mobile plate 29 and a plug rod 32 that passes through and slides on the mounting plate 31. Specifically, a plurality of insertion holes 33 are provided at equal intervals on the limit plate 28, and the insertion rods 32 are respectively movably engaged with the plurality of insertion holes 33. A tension spring 34 is sleeved on the insertion rod 32 and is located above the mounting plate 31. The top and bottom ends of the tension spring 34 are respectively fixedly connected to the top of the insertion rod 32 and the top of the mounting plate 31. After the display screen 27 is rotated to the required angle position, the insertion rod 32 can be released, and the tension spring 34 in a stressed state can drive the insertion rod 32 to move downward, so that the insertion rod 32 is inserted into the corresponding insertion hole 33, so that the movable plate 29 can be positioned, that is, the connection arm 26 can be positioned through the cooperation of the two pull rods 30 and the stop shaft, so that the display screen 27 can be stably limited and braked.

[0032] The present application can be used in the field of medical device technology, and can also be used in other fields applicable to the present application.

[0033] Example 2: Reference Figure 4 and Figure 8 , improved on the basis of the first embodiment: a nasotracheal tube with a visual navigation function, which is applied to the field of medical device technology. In order to ensure that the pull rope 13 can stably drive the connecting frame 10 to rotate and prevent the pull rope 13 from moving at will, an adjustment mechanism can be designed to adjust and limit it. The adjustment mechanism includes a connecting plate 17 fixedly mounted on the pull rope 13, and a limiting frame 19 fixedly mounted on the top of the support plate 7. The limiting frame 19 is slidably connected to a limiting slide 18, and the limiting slide 18 is fixedly mounted on one side of the connecting plate 17. The connecting plate 17 and the limiting slide 18 are connected through the same clamping mechanism, and a clamping hole 20 is provided on the limiting frame 19. The clamping mechanism penetrates the clamping hole 20 and is movably clamped with the clamping hole 20. Specifically, the clamping mechanism is mainly composed of a moving rod 21, and the moving rod 21 penetrates the connecting plate 17, the limiting slide 18 and the clamping hole 20 respectively and is slidably connected to the limiting slide 18 and the connecting plate 17. A positioning ring 22 is fixedly sleeved on the moving rod 21, and the positioning ring 22 is movably clamped with the clamping hole 20. A first compression spring 23 is sleeved on the moving rod 21 and is located on one side of the connecting plate 17. The two ends of the first compression spring 23 are fixedly connected to one side of the connecting plate 17 and one end of the moving rod 21 respectively.

[0034] When in use, the positioning ring 22 is moved out of the clamping hole 20 by pulling the moving rod 21, and then the pull rope 13 can be driven to move by longitudinally moving the connecting plate 17, so that the toggle rod 11 can be rotated and adjusted through the connecting frame 10, so that the moving tube 3 can be rotated and adjusted. After the rotation adjustment of the moving tube 3 is completed, the moving rod 21 can be released, and the first compression spring 23 in a stressed state can drive the moving rod 21 to move in the opposite direction, and the positioning ring 22 can be moved into the clamping hole 20 and clamped with the clamping hole 20, so that the connecting plate 17 can be positioned, and the pull rope 13 can be prevented from moving randomly, so that the connecting frame 10 can be stably positioned.

[0035] In general, the nasotracheal tube with visual navigation function and its adjustment mechanism have a simple structure and a reasonable design. Through the provided bending mechanism and display mechanism, the moving direction of the mobile tube 3 can be adjusted as needed, and the intubation situation can be observed in real time through the camera 12, which is convenient for medical personnel to operate and greatly improves the success rate and safety of intubation.

[0036] However, as is well known to those skilled in the art, the working principles and wiring methods of the camera 12 and the display screen 27 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art may make any optional selections according to their needs or convenience.

[0037] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention; the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A nasotracheal tube with a visual navigation function, comprising a tracheal guide tube (1), a collar (5) fixedly sleeved on the tracheal guide tube (1), a bending tube (2) fixedly mounted on the bottom end of the tracheal guide tube (1), a moving tube (3) fixedly mounted on one end of the bending tube (2), a guide ring (4) fixedly mounted on one end of the moving tube (3), and a docking ring (14) fixedly mounted on the top end of the tracheal guide tube (1), characterized in that: The nasotracheal tube also includes: A bending mechanism, the bending mechanism comprising a support rod (8) and a toggle rod (11), one end of the support rod (8) extending into the bending tube (2) and connected to the toggle rod (11) via a rotating assembly, the other end of the support rod (8) being provided with a limit assembly, and the support rod (8) being further connected to a clamping mechanism clamped with a docking ring (14); The display mechanism comprises a support assembly mounted on the clamping mechanism, a display screen (27) being mounted on the support assembly, a camera (12) being fixedly mounted on one end of the toggle rod (11), and the camera (12) being electrically connected to the display screen (27).

2. The nasotracheal tube with visual navigation function according to claim 1, characterized in that: The rotating assembly comprises a connecting shaft (9) fixedly mounted on one end of the support rod (8), a connecting frame (10) being rotatably connected to the connecting shaft (9), the other end of the toggle rod (11) being fixedly connected to one side of the connecting frame (10), a pull rope (13) being fixedly mounted on the connecting frame (10), the pull rope (13) passing through the limit assembly and cooperating with the limit assembly.

3. The nasotracheal tube with visual navigation function according to claim 2, characterized in that: The limiting assembly comprises an arc-shaped guide plate (15) fixedly mounted on the other end of the support rod (8), the arc-shaped guide plate (15) being provided with an arc-shaped groove, the pull rope (13) being arranged in the arc-shaped groove, and an arc-shaped baffle plate (16) for wrapping and limiting the pull rope (13) being fixedly mounted on the arc-shaped guide plate (15), the arc-shaped baffle plate (16) being capable of preventing the pull rope (13) from moving out of the arc-shaped groove.

4. The nasotracheal tube with visual navigation function according to claim 1, characterized in that: The clamping mechanism comprises a clamping ring (6) sleeved on the docking ring (14), a support plate (7) is fixedly mounted on the inner side of the clamping ring (6), a support rod (8) passes through the support plate (7) and is fixedly connected to the support plate (7), a pull rope (13) passes through the support plate (7) and is slidably connected to the support plate (7), a fixed clamping plate (35) is fixedly mounted on one side of the bottom of the clamping ring (6), one side of the fixed clamping plate (35) is fixedly connected to a first handle frame (36), and the first handle frame (36) is connected to the same second handle frame (36) through two sliding assemblies. A handle frame (39), a first handle frame (36) and a second handle frame (39) are fixedly mounted with an anti-slip pad (44) on one side away from each other, a movable clamping plate (40) is fixedly mounted on one side of the second handle frame (39), the movable clamping plate (40) cooperates with the fixed clamping plate (35) and is used to clamp the docking ring (14), a hook (42) is rotatably connected to one side of the first handle frame (36), a clamping shaft (43) is fixedly mounted on one side of the second handle frame (39), and the hook (42) is clamped with the clamping shaft (43).

5. The nasotracheal tube with visual navigation function according to claim 4, characterized in that: The sliding assembly comprises a limiting tube (37) fixedly mounted on an inner wall of one side of the first handle frame (36); a limiting rod (38) is slidably connected inside the limiting tube (37); one end of the limiting rod (38) extends to the outside of the limiting tube (37) and is fixedly connected to an inner wall of one side of the second handle frame (39); a second compression spring (41) located outside the limiting tube (37) is sleeved on the limiting rod (38); two ends of the second compression spring (41) are respectively fixedly connected to one end of the limiting tube (37) and an inner wall of one side of the second handle frame (39).

6. The nasotracheal tube with visual navigation function according to claim 1, characterized in that: The support assembly comprises a support frame (24) fixedly mounted on a clamping ring (6); a mounting frame (25) is fixedly mounted on one side of the support frame (24); a connecting arm (26) is rotatably connected to the mounting frame (25); one side of the connecting arm (26) is fixedly connected to a display screen (27); a transmission component is connected through the connecting arm (26); one side of the transmission component extends into the support frame (24) and is connected to an inner wall of the support frame (24).

7. The nasotracheal tube with visual navigation function according to claim 6, characterized in that: The transmission component comprises a limit plate (28) fixedly mounted in the support frame (24), a movable plate (29) being slidably connected to the limit plate (28), the top of the movable plate (29) extending above the support frame (24), pull rods (30) being fixedly mounted on the tops of both sides of the movable plate (29), a same stop shaft being fixedly mounted on the sides of the two pull rods (30) close to each other, the stop shaft passing through the connecting arm (26) and being in transmission cooperation with the connecting arm (26).

8. The nasotracheal tube with visual navigation function according to claim 7, characterized in that: A mounting plate (31) is fixedly mounted on one side of the movable plate (29), a plug rod (32) is slidably connected to the mounting plate (31), a plurality of plug holes (33) are provided at equal intervals on the limit plate (28), the plug rod (32) is movably engaged with the plurality of plug holes (33), a tension spring (34) is sleeved on the plug rod (32) and is located above the mounting plate (31), and the top and bottom ends of the tension spring (34) are fixedly connected to the top of the plug rod (32) and the top of the mounting plate (31), respectively.

9. An adjustment mechanism for a nasotracheal tube with visual navigation function, applied to the nasotracheal tube with visual navigation function as claimed in any one of claims 1 to 8, comprising a connecting plate (17) fixedly mounted on a pull rope (13), characterized in that: The invention also comprises a limit frame (19), the limit frame (19) is fixedly mounted on the top of the support plate (7), the limit frame (19) is slidably connected to a limit slide plate (18), the limit slide plate (18) is fixedly mounted on one side of the connecting plate (17), the connecting plate (17) and the limit slide plate (18) are connected through the same clamping mechanism, the limit frame (19) is provided with a clamping hole (20), the clamping mechanism passes through the clamping hole (20) and is movably clamped with the clamping hole (20).

10. The adjustment mechanism for a nasotracheal tube with visual navigation function according to claim 9, characterized in that: The clamping mechanism comprises a moving rod (21), the moving rod (21) respectively passing through the connecting plate (17), the limiting slide plate (18) and the clamping hole (20) and being slidably connected to the limiting slide plate (18) and the connecting plate (17), a positioning ring (22) being fixedly sleeved on the moving rod (21), the positioning ring (22) being movably clamped with the clamping hole (20), a first compression spring (23) being sleeved on the moving rod (21) and being located on one side of the connecting plate (17), and two ends of the first compression spring (23) being fixedly connected to one side of the connecting plate (17) and one end of the moving rod (21), respectively.

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