Angle-adjustable visual tracheotomy guide wire

Abstract

The visual tracheostomy guide wire comprises a hollow guide wire body, one end of the hollow guide wire body is fixedly connected with one end of a bendable part, a camera is fixedly arranged at the other end of the bendable part, a handle is arranged at the other end of the hollow guide wire body, a camera angle adjusting mechanism is arranged in the handle, and the camera angle adjusting mechanism is connected with the bendable part. The bendable part is connected with the camera angle adjusting mechanism through a drawing wire, and a data line of the camera penetrates out of the handle and is electrically connected with a displayer. The visual trachea cannula has a visual function, images of tissues in the trachea and around the trachea of a patient can be collected through the camera, a doctor can conduct incision operation and expansion operation in a visual environment, and damage to the patient is reduced.

Description

Technical Field

[0001] The present invention relates to a guide wire, in particular to a visible tracheotomy guide wire with adjustable angle. Background Art

[0002] Percutaneous tracheotomy is generally used to help patients with dyspnea improve ventilation. This surgery is usually performed when the patient cannot maintain sufficient oxygen or expel carbon dioxide through normal means.

[0003] Percutaneous tracheotomy creates a small incision in the front of the neck, inserts a tracheal cannula, and bypasses the larynx to directly enter the trachea. This surgery can quickly establish a stable airway, especially suitable for patients who need mechanical ventilation for a long time.

[0004] Currently, the main problem of percutaneous tracheotomy is that the position is inaccurate after puncture and the posterior wall of the trachea is easily damaged. If the tracheal rings can be observed visually, and after precise positioning, operations such as expanding the surrounding soft tissues and separating and incising are performed, the damage will be greatly reduced. Summary of the Invention

[0005] The purpose of the present invention is to provide a visible tracheotomy guide wire with adjustable angle to solve the technical problems in the prior art. It has a visible function and can collect images of the tissues inside and around the patient's trachea through a camera, enabling the doctor to perform incision and dilation operations in a visible environment and reducing the damage to the patient.

[0006] The present invention provides a visible tracheotomy guide wire with adjustable angle, including a hollow guide wire body. One end of the hollow guide wire body is fixedly connected to one end of a bendable part, and a camera is fixedly provided at the other end of the bendable part. A handle is provided at the other end of the hollow guide wire body, and a camera angle adjustment mechanism is arranged inside the handle. The bendable part is connected to the camera angle adjustment mechanism through a wire, and the data line of the camera passes through the handle and is electrically connected to a display.

[0007] In the aforementioned visible tracheotomy guide wire with adjustable angle, preferably, the bendable part is a snake bone tube or a spring tube.

[0008] In the aforementioned visible tracheotomy guide wire with adjustable angle, preferably, a plurality of wire limiting plates are arranged inside the spring tube. A data line through hole is opened at the center of the wire limiting plate, and a plurality of wire through holes are equidistantly opened around the data line through hole on the wire limiting plate.

[0009] In the aforementioned angle-adjustable visible tracheotomy guide wire, preferably, the handle includes a cylindrical hand-held portion and an angle adjustment mechanism mounting portion. One end of the cylindrical hand-held portion is fixedly connected to the end of the hollow guide wire body, and the angle adjustment mechanism mounting portion is fixedly connected to the other end of the cylindrical hand-held portion.

[0010] In the aforementioned angle-adjustable visible tracheotomy guide wire, preferably, a through hole is formed in the side wall of the cylindrical hand-held portion, and the data line passes through the through hole and exits the cylindrical hand-held portion.

[0011] In the aforementioned angle-adjustable visible tracheotomy guide wire, preferably, the camera angle adjustment mechanism is installed in the angle adjustment mechanism mounting portion. The camera angle adjustment mechanism includes a worm gear, a worm, an angle adjustment gear, and a lever assembly. The worm is fixedly provided on a first mounting shaft, and the axis of the first mounting shaft is perpendicular to the axis of the cylindrical hand-held portion. The angle adjustment gear is rotatably installed on the first mounting shaft, and both ends of the first mounting shaft are rotatably connected to the inner wall of the angle adjustment mechanism mounting portion. A first mounting shaft driving disk is fixedly provided on the first mounting shaft. The lever assembly is movably installed on the first mounting shaft. The worm gear is rotatably installed in the angle adjustment mechanism mounting portion through a second mounting shaft, and the worm gear meshes with the worm.

[0012] In the aforementioned angle-adjustable visible tracheotomy guide wire, preferably, a first limiting ring and a second limiting ring are fixedly provided on the first mounting shaft. A first mounting post is formed at one end of the angle adjustment gear close to the limiting ring, and a first ring groove is formed in the first mounting post. Two of the wire draws are wound and connected to the first ring groove. The angle adjustment gear is located between the first limiting ring and the second limiting ring;

[0013] A gear limiting baffle is fixedly provided in the angle adjustment mechanism mounting portion, and one end of the gear limiting baffle is snap-connected to the teeth on the angle adjustment gear.

[0014] In the aforementioned angle-adjustable visible tracheotomy guide wire, preferably, a second mounting post is formed at one end of the worm gear, and a second ring groove is formed in the second mounting post. The other two wire draws are wound and connected to the second ring groove.

[0015] In the aforementioned angle-adjustable visible tracheotomy guide wire, preferably, a wire draw sleeve is sleeved on the wire draw. A wire draw sleeve mounting plate is fixedly provided at the connection position between the cylindrical hand-held portion and the angle adjustment mechanism mounting portion. One end of the wire draw sleeve is fixed on the wire draw sleeve mounting plate, and the other end of the wire draw sleeve abuts against the end of the bendable portion away from the camera.

[0016] In the aforementioned angle-adjustable visible tracheotomy guide wire, preferably, an opening is formed in the angle adjustment mechanism mounting portion. The lever assembly includes a driving disk, a connecting rod, and a finger ring. The driving disk is movably mounted on the first mounting shaft. One end of the connecting rod is fixedly connected to the driving disk, and the other end of the connecting rod extends to the outside of the angle adjustment mechanism mounting portion through the opening and is fixedly connected to the finger ring.

[0017] In the aforementioned angle-adjustable visible tracheotomy guide wire, preferably, a plurality of mounting holes are formed in the driving disk. All the mounting holes are arranged at equal intervals in the circumferential direction of the driving disk. A spring is mounted in each mounting hole. Both ends of the spring are fixedly connected with a locking pin. The end of the locking pin connected to the spring has a limiting boss. Locking pin limiting plates are mounted on both sides of the angle adjustment gear. A plurality of through holes are formed in the locking pin limiting plates. A plurality of locking pin insertion holes are formed in the angle adjustment gear and the driving disk of the first mounting shaft.

[0018] Compared with the prior art, the present invention includes a hollow guide wire main body. One end of the hollow guide wire main body is fixedly connected to one end of a bendable portion. The other end of the bendable portion is fixedly provided with a camera. The other end of the hollow guide wire main body is provided with a handle. A camera angle adjustment mechanism is arranged inside the handle. The bendable portion is connected to the camera angle adjustment mechanism through a wire. The data line of the camera passes through the handle and is electrically connected to a display. The present invention is provided with a bendable portion and a camera on the hollow guide wire main body. The bendable portion and the camera can be inserted into a puncture needle through the hollow guide wire main body. Then, the angle of the bendable portion can be adjusted through the camera angle adjustment mechanism, so that the angle of the camera changes. The image information inside and around the trachea of the patient is collected by the camera and sent to the display through the data line for display, enabling the doctor to observe the tracheal rings visually. After accurate positioning, an expansion forceps is used to expand the surrounding soft tissues and perform operations such as separation and incision, reducing damage to the blood vessels and soft tissues around the trachea. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is an axonometric view of the overall structure of the present invention;

[0020] Figure 2 is a schematic diagram of the internal structure after half-section of the handle;

[0021] Figure 3 is Figure 2 an enlarged view of part A of

[0022] Figure 4 is an exploded view of the camera angle adjustment mechanism;

[0023] Figure 5 is a cross-sectional view of the spring coil.

[0024] Description of the reference numerals in the drawings: hollow guide wire body 1, bendable part 2, camera 3, handle 4, wire drawing 5, display 6, data cable 7, through hole 8, worm gear 9, worm 10, angle adjustment gear 11, first mounting shaft 12, first mounting shaft drive disk 13, second mounting shaft 14, first limiting ring 15, first mounting post 16, first annular groove 17, second annular groove 18, wire drawing sleeve 19, wire drawing sleeve mounting plate 20, second limiting ring 21, lock pin insertion hole 22, opening 23, drive disk 24, connecting rod 25, finger ring 26, mounting hole 27, spring 28, lock pin 29, limiting boss 30, lock pin limiting plate 31, through hole 32, function button 33, gear limiting baffle 34, second mounting post 35, wire drawing limiting plate 36, data cable through hole 37, wire drawing through hole 38. Detailed implementation manners

[0025] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and cannot be construed as a limitation to the present invention.

[0026] Embodiment 1 of the present invention: As Figures 1-4 shown, a visible tracheotomy guide wire with adjustable angle includes a hollow guide wire body 1. One end of the hollow guide wire body 1 is fixedly connected to one end of the bendable part 2, and a camera 3 is fixedly provided at the other end of the bendable part 2. The other end of the hollow guide wire body 1 is provided with a handle 4. A camera angle adjustment mechanism is arranged inside the handle 4. The bendable part 2 is connected to the camera angle adjustment mechanism through a wire drawing 5. The data cable 7 of the camera 3 passes through the handle 4 and is electrically connected to the display 6.

[0027] The hollow guide wire body 1 is preferably made of nitinol alloy, which has the characteristics of good elasticity and excellent bending performance, and can better adapt to the shape and tortuosity of the surgical site during medical operations. The bendable part 2 can be driven by two wire drawings or four wire drawings. The bendable part 2 driven by two wire drawings can only adjust the angle in two directions, while the bendable part 2 driven by four wire drawings can adjust the angle in four directions. In this embodiment, the bendable part 2 driven by four wire drawings is preferably adopted, that is, there are four wire drawings 5 on the bendable part 2.

[0028] In this embodiment, the bendable part 2 adopts a snake bone tube, which is a prior art and can be directly purchased. The camera angle adjustment mechanism is used to adjust the angle of the snake bone tube through the wire drawing 5, so as to drive the camera 3 to move through the snake bone tube, so that the camera 3 can photograph the position to be viewed during the operation.

[0029] Both the display 6 and the camera 3 are existing products and can be directly purchased. The camera 3 is preferably a camera with an illumination function. A controller (not shown in the figure) is provided inside the display 6. The image captured by the camera 3 is transmitted to the controller through the data line 7, and after being decoded by the controller, it is displayed on the display screen of the display 6. Function buttons 33 can also be provided on the display 6. The number and functions of the function buttons 33 can be set according to actual needs. For example, brightness increase, brightness decrease, image magnification, image reduction, screenshot, and video recording can be set. When operating the function button 33, the function button 33 sends a signal to the controller, and the controller then controls the camera 3 to perform corresponding operations. For example, when pressing the brightness increase button, the brightness of the LED lamp inside the camera increases, and when pressing the brightness decrease button, the brightness of the LED lamp inside the camera decreases.

[0030] Specifically, the handle 4 includes a cylindrical handheld portion and an angle adjustment mechanism mounting portion. One end of the cylindrical handheld portion is fixedly connected to the end of the hollow guide wire body 1, and the angle adjustment mechanism mounting portion is fixedly connected to the other end of the cylindrical handheld portion.

[0031] The cylindrical handheld portion is for holding by hand, facilitating the operation of the doctor. The angle adjustment mechanism mounting portion is the mounting housing of the camera angle adjustment mechanism.

[0032] A through hole 8 is provided on the side wall of the cylindrical handheld portion, and the data line 7 passes through the through hole 8 and exits the cylindrical handheld portion. In this embodiment, the through hole 8 is provided at the connection position between the cylindrical handheld portion and the angle adjustment mechanism mounting portion.

[0033] The camera angle adjustment mechanism is mounted inside the angle adjustment mechanism mounting portion. The camera angle adjustment mechanism includes a worm gear 9, a worm 10, an angle adjustment gear 11, and a lever assembly. The worm 10 is fixedly provided on the first mounting shaft 12. The axis of the first mounting shaft 12 is perpendicular to the axis of the cylindrical handheld portion. The angle adjustment gear 11 is rotatably mounted on the first mounting shaft 12. The two ends of the first mounting shaft 12 are rotatably connected to the inner wall of the angle adjustment mechanism mounting portion. A first mounting shaft drive disk 13 is fixedly provided on the first mounting shaft 12. The lever assembly is movably mounted on the first mounting shaft 12. The worm gear 9 is rotatably mounted inside the angle adjustment mechanism mounting portion through the second mounting shaft 14, and the worm gear 9 meshes with the worm 10.

[0034] In this embodiment, the worm gear 9 is located in the space between the worm 10 and the cylindrical handheld portion. When the worm 10 rotates, it drives the worm gear 9 to rotate. The worm 10, the angle adjustment gear 11, the lever assembly, and the first mounting shaft drive disk 13 are arranged in sequence on the first mounting shaft 12. The lever assembly can move on the first mounting shaft 12. When the lever assembly is connected to the angle adjustment gear 11, it can drive the angle adjustment gear 11 to rotate on the first mounting shaft 12. When the lever assembly is connected to the first mounting shaft drive disk 13, it can drive the first mounting shaft drive disk 13 to rotate, thereby causing the first mounting shaft 12 and the worm 10 to rotate.

[0035] Further, a first limiting ring 15 and a second limiting ring 21 are fixedly arranged on the first mounting shaft 12. A first mounting post 16 is formed at one end of the angle adjustment gear 11 close to the limiting ring 15. A first ring groove 17 is formed on the first mounting post 16. Two of the wire ropes 5 are wound and connected to the first ring groove 17. The angle adjustment gear 11 is located between the first limiting ring 15 and the second limiting ring 21.

[0036] The two wire ropes 5 wound and connected to the first ring groove 17 should be a pair of opposite wire ropes. If the four wire ropes 5 are respectively used to control the swing of the snake bone tube in the front, rear, left, and right directions, then these two wire ropes 5 should be the two wire ropes for controlling the front and rear or the two wire ropes for controlling the left and right. In this embodiment, it is preferably the two wire ropes for controlling the front and rear.

[0037] The first limiting ring 15 and the second limiting ring 21 are used to limit the axial freedom degree of the angle adjustment gear 11. In this embodiment, the diameter of the mounting hole of the angle adjustment gear 11 is slightly larger than the diameter of the first mounting shaft 12. In this way, when the lever assembly is connected to the first mounting shaft drive disc 13, the first mounting shaft 12 rotates while the angle adjustment gear 11 does not rotate. When the lever assembly is connected to the angle adjustment gear 11, the angle adjustment gear 11 rotates while the first mounting shaft 12 does not rotate.

[0038] A gear limiting baffle 34 is fixedly arranged inside the angle adjustment mechanism mounting part. One end of the gear limiting baffle 34 is clamped and connected to the teeth on the angle adjustment gear 11. The gear limiting baffle 34 has elasticity and recovery characteristics. When the angle adjustment gear 11 rotates, the teeth on the angle adjustment gear 11 push the gear limiting baffle 34. When the teeth are separated from the gear limiting baffle 34, the gear limiting baffle 34 returns to its original state and is clamped between the teeth. The function of the gear limiting baffle 34 is to prevent the angle adjustment gear 11 from rotating automatically. That is to say, when the lever assembly does not drive the angle adjustment gear 11, the self - weight of the snake bone tube is not sufficient to cause the teeth to push the gear limiting baffle 34 to deform, so that the angle adjustment gear 11 will not rotate automatically, thus enabling the snake bone tube to maintain the adjusted angle. When the lever assembly drives the angle adjustment gear 11 to rotate, the teeth on the angle adjustment gear 11 have enough force to push the gear limiting baffle 34 to cause it to deform, and it will not prevent the angle adjustment gear 11 from rotating.

[0039] One end of the worm gear 9 forms a second mounting post 35. A second ring groove 18 is formed on the second mounting post 35. The other two wire ropes 5 are wound and connected to the second ring groove 18. The two wire ropes 5 wound and connected to the second ring groove 18 are the two wire ropes for controlling the swing of the snake bone tube in the left and right directions.

[0040] Four wire drawing wires 5 are sleeved with wire drawing sleeves 19. A wire drawing sleeve mounting plate 20 is fixedly arranged at the connection position between the cylindrical hand-held part and the angle adjustment mechanism mounting part. One end of the wire drawing sleeve 19 is fixed on the wire drawing sleeve mounting plate 20, and the other end of the wire drawing sleeve 19 abuts against the end of the snake bone tube far away from the camera 3. It should be noted here that the specific connection method between the four wire drawing wires 5 and the snake bone tube is the prior art. In this embodiment, the internal structure of the snake bone tube is not shown and the specific connection method between the wire drawing wires 5 and the snake bone tube is not described in detail. The four-way adjustable snake bone tube obtained by direct purchase is provided with four wire drawing wires 5, and it can be directly installed after purchase.

[0041] Certainly, the snake bone tube with a double wire drawing structure can also be applied to this application. When using the snake bone tube with a double wire drawing structure, only two wire drawing wires need to be connected to one of the first annular groove 17 or the second annular groove 18.

[0042] An opening 23 is formed on the angle adjustment mechanism mounting part. The lever assembly includes a driving disk 24, a connecting rod 25 and a finger ring 26. The driving disk 24 is movably installed on the first mounting shaft 12. One end of the connecting rod 25 is fixedly connected to the driving disk 24, and the other end of the connecting rod 25 extends to the outside of the angle adjustment mechanism mounting part through the opening 23 and is fixedly connected to the finger ring 26.

[0043] A plurality of mounting holes 27 are formed on the driving disk 24. All the mounting holes 27 are arranged at equal intervals in the circumferential direction of the driving disk 24, that is, the axes of all the mounting holes 27 are on the circumference of the same circle. A spring 28 is installed in each mounting hole 27. Both ends of the spring 28 are fixedly connected with a locking pin 29. The end of the locking pin 29 connected to the spring 28 has a limiting boss 30. Locking pin limiting plates 31 are installed on both sides of the angle adjustment gear 11. A plurality of through holes 32 are formed on the locking pin limiting plates 31. A plurality of locking pin insertion holes 22 are formed on the angle adjustment gear 11 and the driving disk 13 of the first mounting shaft.

[0044] The number of mounting holes 27 on the driving disk 24 can be set according to requirements. In this embodiment, 6 mounting holes 27 are preferably set. Springs 28 are installed in all 6 mounting holes 27. Similarly, there are also 6 through holes 32 on the locking pin limiting plates 31, and there are also 6 locking pin insertion holes 22 on the angle adjustment gear 11 and the driving disk 13 of the first mounting shaft respectively. When the two locking pin limiting plates 31 are fixed on the two end faces of the driving disk 24, the 6 through holes 32 and the 6 mounting holes 27 are in one-to-one correspondence and coaxial. The diameter of the mounting hole 27 is larger than the diameter of the through hole 32, and the diameter of the mounting hole 27 is larger than or equal to the diameter of the limiting boss 30. The diameter of the through hole 32 is larger than or equal to the diameter of the locking pin 29. The diameter of the locking pin insertion holes 22 on the angle adjustment gear 11 and the driving disk 13 of the first mounting shaft should be larger than the diameter of the locking pin 29 so that the locking pin 29 can be smoothly inserted into the locking pin insertion holes 22.

[0045] Working principle of the present invention: When in use, turn on the monitor 6, insert the end of the hollow guide wire body 1 with the camera 3 into the tracheotomy incision, and then operate the angle adjustment mechanism according to the image displayed on the monitor 6. Hold the cylindrical holding part of the handle 4 with one hand, and insert the thumb into the finger ring 26. When it is necessary to adjust the angle of the snake bone tube in the front-back direction, push the finger ring 26 to make the driving disk 24 close to the angle adjustment gear 11. At this time, if the locking pin 29 happens to be aligned with the locking pin insertion hole 22 on the side of the angle adjustment gear 11, the locking pin 29 will directly insert into the locking pin insertion hole 22. At this time, when controlling the driving disk 24 to rotate around the first installation shaft 12, the angle adjustment gear 11 can be driven to rotate. When the angle adjustment gear 11 rotates, the two wire ropes on the first annular groove 17 move in opposite directions to drive the angle adjustment of the snake bone tube.

[0046] If the locking pin 29 is not aligned with the locking pin insertion hole 22 on the side of the angle adjustment gear 11 when the driving disk 24 is close to the angle adjustment gear 11, the side of the angle adjustment gear 11 will squeeze the locking pin 29, and the locking pin 29 will compress the spring 28 and move into the installation hole 27. When the driving disk 24 is rotated, when the locking pin 29 is aligned with the locking pin insertion hole 22, under the action of the spring 28, the locking pin 29 will automatically insert into the locking pin insertion hole 22, and the angle adjustment gear 11 will follow the driving disk 24 to rotate.

[0047] When it is necessary to adjust the angle of the snake bone tube in the left-right direction, pull the finger ring 26 backward, and the locking pin 29 is separated from the angle adjustment gear 11. The locking pin 29 at the other end of the spring 28 is inserted into the locking pin insertion hole 22 on the driving disk of the first installation shaft 13. There are also two situations of exactly aligning and misaligning, and the working principle is the same as the connection principle with the angle adjustment gear 11 described above. After the locking pin 29 is inserted into the locking pin insertion hole 22 on the driving disk of the first installation shaft 13, the driving disk 24 drives the driving disk of the first installation shaft 13 to rotate. The driving disk of the first installation shaft 13 is fixedly connected to the first installation shaft 12, so the first installation shaft 12 rotates synchronously. The worm 10 on the first installation shaft 12 drives the worm gear 9 to rotate, and the two wire ropes 5 on the second annular groove 18 move in opposite directions to bend the snake bone tube to the left or right.

[0048] The image collected by the camera 3 is transmitted through the data line 7 to the controller in the monitor 6, and the controller decodes and displays the image on the screen of the monitor 6. In addition, by adjusting the brightness of the LED light on the camera 3 to the maximum, the doctor can directly see the irradiation position of the camera 3, so as to directly find the cutting position and further improve the surgical accuracy.

[0049] Embodiment 2 of the present invention: Please combine Figures 1-5, the difference between this embodiment and Embodiment 1 is only that the bendable part 2 uses a bellows, and several wire drawing limit plates 36 are arranged inside the bellows. A data line through hole 37 is opened in the center of the wire drawing limit plate 36, and a plurality of wire drawing through holes 38 are opened around the data line through hole 37 on the wire drawing limit plate 36 at equal intervals.

[0050] The bellows can also be of two specifications. One is a double-wire drawing bellows, and the other is a quadruple-wire drawing bellows. Two wire drawing through holes 38 are opened on the wire drawing limit plate 36 inside the double-wire drawing bellows, and the two wire drawing through holes 38 are symmetrically arranged relative to the data line through hole 37. A wire 5 passes through each of the two wire drawing through holes 38. In the state where the bellows is not bent, the parts of the two wires 5 located inside the bellows are parallel to the axis of the bellows.

[0051] Only one of the first annular groove 17 or the second annular groove 18 needs to be connected to the two wires.

[0052] Four wire drawing through holes 38 are opened on the wire drawing limit plate 36 inside the quadruple-wire drawing bellows, and the four wire drawing through holes 38 are arranged around the data line through hole 37 at equal intervals. A wire 5 passes through each of the four wire drawing through holes 38. In the state where the bellows is not bent, the parts of the four wires 5 located inside the bellows are parallel to the axis of the bellows.

[0053] Two of the wires 5 are wound and connected to the first annular groove 7, and the other two wires 5 are wound and connected to the second annular groove 18.

[0054] The working principle of this embodiment is the same as that of Embodiment 1.

[0055] The structure, features and effects of the present invention have been described in detail based on the embodiments shown in the drawings. The above is only the preferred embodiment of the present invention, but the present invention is not limited to the scope shown in the drawings. Any changes made according to the concept of the present invention, or equivalent embodiments modified into equivalent changes, should still be within the protection scope of the present invention when they do not exceed the spirit covered by the specification and the drawings.

Claims

1. An angle-adjustable visual tracheotomy guidewire, comprising a hollow guidewire body (1), characterized in that: One end of the hollow guide wire body (1) is fixedly connected to one end of the bendable portion (2), the other end of the bendable portion (2) is fixedly provided with a camera (3), the other end of the hollow guide wire body (1) is provided with a handle (4), a camera angle adjustment mechanism is arranged in the handle (4), the bendable portion (2) is connected to the camera angle adjustment mechanism via a wire drawing (5), and a data line (7) of the camera (3) passes through the handle (4) and is electrically connected to a display (6).

2. The angle-adjustable visual tracheotomy guidewire according to claim 1, characterized in that: The bendable portion (2) is a snake-bone tube or a spring tube.

3. The angle-adjustable visual tracheotomy guidewire according to claim 2, characterized in that: A plurality of wire drawing limit plates (36) are arranged in the spring tube, a data line via hole (37) is provided at the center of the wire drawing limit plate (36), and a plurality of wire drawing via holes (38) are provided on the wire drawing limit plate (36) at equal intervals around the data line via hole (37).

4. The angle-adjustable visual tracheotomy guidewire according to claim 2 or 3, characterized in that: The handle (4) comprises a cylindrical hand-held portion and an angle adjustment mechanism mounting portion, one end of the cylindrical hand-held portion is fixedly connected to the end of the hollow guide wire body (1), and the angle adjustment mechanism mounting portion is fixedly connected to the other end of the cylindrical hand-held portion; A through hole (8) is provided on the side wall of the cylindrical handheld portion, and the data line (7) passes through the through hole (8) and out of the cylindrical handheld portion.

5. The angle-adjustable visual tracheotomy guidewire according to claim 4, characterized in that: The camera angle adjustment mechanism is mounted in the angle adjustment mechanism mounting portion. The camera angle adjustment mechanism comprises a worm wheel (9), a worm (10), an angle adjustment gear (11) and a lever assembly. The worm (10) is fixedly mounted on a first mounting shaft (12). The axis of the first mounting shaft (12) is perpendicular to the axis of the cylindrical handheld portion. The angle adjustment gear (11) is rotatably mounted on the first mounting shaft (12). Both ends of the first mounting shaft (12) are rotatably connected to the inner wall of the angle adjustment mechanism mounting portion. A first mounting shaft drive disk (13) is fixedly provided on the first mounting shaft (12). The lever assembly is movably mounted on the first mounting shaft (12). The worm wheel (9) is rotatably mounted in the angle adjustment mechanism mounting portion via a second mounting shaft (14). The worm wheel (9) is meshed with the worm (10).

6. The angle-adjustable visual tracheotomy guidewire according to claim 5, characterized in that: A first limiting ring (15) and a second limiting ring (21) are fixedly provided on the first installation shaft (12); a first installation column (16) is formed at one end of the angle adjustment gear (11) close to the limiting ring (15); a first annular groove (17) is formed on the first installation column (16); and the angle adjustment gear (11) is located between the first limiting ring (15) and the second limiting ring (21); A gear limit baffle (34) is fixedly arranged in the angle adjustment mechanism mounting portion, and one end of the gear limit baffle (34) is clamped and connected to the teeth on the angle adjustment gear (11).

7. The angle-adjustable visual tracheotomy guidewire according to claim 6, characterized in that: A second mounting column (35) is formed at one end of the worm wheel (9), and a second annular groove (18) is formed on the second mounting column (35).

8. The angle-adjustable visual tracheotomy guidewire according to claim 7, characterized in that: A wire drawing sleeve (19) is sleeved on the wire drawing (5), and a wire drawing sleeve mounting plate (20) is fixedly provided at the connection position between the cylindrical hand-held portion and the angle adjustment mechanism mounting portion, one end of the wire drawing sleeve (19) is fixed on the wire drawing sleeve mounting plate (20), and the other end of the wire drawing sleeve (19) is in contact with an end of the bendable portion (2) away from the camera (3).

9. The angle-adjustable visual tracheotomy guidewire according to claim 8, characterized in that: An opening (23) is provided on the angle adjustment mechanism mounting portion, and the lever assembly comprises a driving disk (24), a connecting rod (25) and a finger ring (26). The driving disk (24) is movably mounted on the first mounting shaft (12), one end of the connecting rod (25) is fixedly connected to the driving disk (24), and the other end of the connecting rod (25) extends through the opening (23) to the outside of the angle adjustment mechanism mounting portion and is then fixedly connected to the finger ring (26).

10. The angle-adjustable visual tracheotomy guidewire according to claim 9, characterized in that: The drive disk (24) is provided with a plurality of mounting holes (27), all of the mounting holes (27) are arranged at equal intervals in the circumferential direction of the drive disk (24), a spring (28) is installed in each of the mounting holes (27), both ends of the spring (28) are fixedly connected with a locking pin (29), one end of the locking pin (29) connected to the spring (28) has a limiting boss (30), both sides of the angle adjustment gear (11) are provided with locking pin limiting plates (31), the locking pin limiting plates (31) are provided with a plurality of through holes (32), and the angle adjustment gear (11) and the first mounting shaft drive disk (13) are provided with a plurality of locking pin insertion holes (22).

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