Trachea cannula fixing device

Abstract

The utility model provides a trachea cannula fixing device which comprises a fixing plate, a through hole for a pipeline body to penetrate through is formed in the fixing plate, two fixing supports are arranged on the fixing plate, the two fixing supports are arranged on the two sides of the through hole respectively, and the through hole is formed in the fixing plate. Supporting rods are arranged on the side walls, close to each other, of the fixed supports in the horizontal direction, arc-shaped clamping plates are arranged at the ends, away from the fixed supports, of the supporting rods, and the concave faces of the arc-shaped clamping plates are used for abutting against a pipeline body. The driving part is used for driving the supporting rod to move in the direction close to or away from the pipeline body, connecting buckles are fixedly arranged at the two ends, in the length direction, of the fixing plate, and fixing belts are arranged on the connecting buckles in a penetrating mode. And normal supply of gas in the pipeline is ensured, so that the workload of medical staff is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a tracheal intubation fixing device. Background Art

[0002] The contents of this section merely provide background information related to the present invention and may not constitute prior art.

[0003] During the treatment of some diseases, endotracheal intubation is often used to establish an open, smooth airway to ensure that the patient can breathe. Intubation is usually performed under general anesthesia or in an emergency. For example, when the patient is unable to breathe on their own, endotracheal intubation can protect the airway, prevent foreign objects from entering, and allow doctors to provide assisted breathing to the patient through a ventilator. The endotracheal intubation fixture is a tool or facility used to fix the endotracheal tube in an appropriate position, which can ensure that the endotracheal tube does not move during use, thereby maintaining the patency and safety of the airway.

[0004] Traditional tracheal intubation fixation devices usually include a tube body and a fixing belt. The tube body is connected to the patient's trachea through the patient's oral or nasal cavity, and then the tube body is fixed to the patient's face by the fixing belt to prevent the tube from shifting. However, during clinical use, when oral intubation is performed, compression is very likely to occur between the tube body and the patient's mouth, thereby affecting the normal gas supply of the tube body. Medical staff need to pay attention to the patient at all times. When compression occurs in the tube, the position of the tube or the patient's body position needs to be adjusted as soon as possible to ensure the normal supply of gas in the tube, which brings a certain workload to medical staff. Summary of the Invention

[0005] In order to solve the above technical problems, the purpose of the present utility model is to provide a tracheal intubation fixing device, which can avoid compression of the tube body due to changes in the patient's body position during intubation, ensure the normal supply of gas in the tube, and thus reduce the workload of medical staff.

[0006] The purpose of the utility model is achieved through the following technical solutions:

[0007] A tracheal intubation fixing device includes a fixing plate, a through hole for the pipeline body to pass through is opened on the fixing plate, and a fixing support is arranged on the fixing plate. There are two fixing supports, and the two fixing supports are respectively arranged on both sides of the through hole. Support rods are arranged in the horizontal direction on the side walls of the fixing supports that are close to each other, and an arc-shaped splint is provided at one end of the support rod away from the fixed support. The concave surface of the arc-shaped splint is used to abut against the pipeline body. A driving member is provided on the fixing support, and the driving member is used to drive the support rod to move toward or away from the pipeline body. Connecting buckles are fixedly provided at both ends of the fixing plate in the length direction, and a fixing belt is passed through the connecting buckle.

[0008] In some possible embodiments, the driving member is configured as a driving sleeve, and a receiving hole is opened on the side walls of the fixed supports that are close to each other. One end of the support rod is slidably inserted into the receiving hole, and a mounting hole is opened on the side walls of the fixed supports that are away from each other. The mounting hole is connected to the receiving hole, and a driving threaded rod is rotatably arranged in the mounting hole. One end of the driving threaded rod is fixedly connected to the support rod, and the driving member is rotatably arranged on the side walls of the fixed supports that are away from each other. A threaded hole threadedly connected to the driving threaded rod is opened on the driving member.

[0009] In some possible embodiments, connecting holes are provided on side walls of the fixed support that are away from each other, the connecting holes are coaxial with the mounting hole, and the diameter of the connecting holes is larger than the diameter of the mounting hole, the driving member is rotatably arranged in the connecting hole, a limiting ring is coaxially fixedly provided at one end of the driving member close to the support rod, a limiting groove is provided at one end of the connecting hole close to the support rod, the limiting ring is rotatably provided in the limiting groove along the axial direction of the connecting hole, a limiting member is provided on the fixed support, and the limiting member is used to limit the deflection angle of the driving member in the connecting hole.

[0010] In some possible embodiments, the limiting member is configured as a pin, and a limiting hole is opened in the fixed support along a direction perpendicular to the axis of the connecting hole. The limiting hole is connected to the connecting hole, and the limiting member is slidably passed through the limiting hole. A slot for inserting the end of the limiting member is opened on the peripheral wall of the driving member, and a plurality of slots are evenly opened along the circumference of the driving member. A first elastic member is provided in the limiting hole, and the first elastic member is used to drive the limiting member to move in a direction away from the limiting hole. A paddle is provided on the fixed support, and the paddle is used to drive the limiting member to move in the limiting hole.

[0011] In some possible embodiments, a first inclined surface is provided at one end of the limiting member close to the driving member, and a second inclined surface is provided on the side wall where the slot abuts against the first inclined surface. The first inclined surface is slidingly connected to the second inclined surface, and the inclination angle of the first inclined surface is adapted to the inclination angle of the second inclined surface.

[0012] In some possible embodiments, strip holes are opened on the side walls of the fixed support that are away from each other. The strip holes are parallel to the limiting holes and are connected to each other. A strip block is slidably arranged in the strip hole. One end of the strip block is fixedly connected to the limiting piece, and the other end is fixedly connected to the paddle.

[0013] In some possible embodiments, a boss is fixedly provided at one end of the driving member away from the support rod, the diameter of the boss is larger than the diameter of the driving member, and a plurality of anti-slip grooves are provided on a peripheral wall of the boss.

[0014] In some possible embodiments, a rotating hole is opened at one end of the support rods close to each other along the length direction of the support rods, a rotating shaft is coaxially rotated in the rotating hole, the convex surface of the arc-shaped clamping plate is fixedly connected to the end of the rotating shaft, and a second elastic member is provided in the rotating hole, the second elastic member acts on the rotating shaft, and the second elastic member can drive the axis to maintain a vertical state.

[0015] In some possible embodiments, an anti-slip ring is fixedly provided at the opening of the rotating hole, a stopper is fixedly provided at the end of the rotating shaft away from the arc-shaped clamping plate, the second elastic member is configured as a torsion spring, the second elastic member is sleeved on the rotating shaft, the second elastic member is located between the stopper and the anti-slip ring, one end of the second elastic member is fixedly connected to the stopper, and the other end is fixedly connected to the anti-slip ring.

[0016] In some possible embodiments, anti-slip protrusions are provided on the concave surface of the arc-shaped clamping plate, and a plurality of the anti-slip protrusions are evenly provided along the surface of the arc-shaped clamping plate, and the anti-slip protrusions are used to abut against the pipe body.

[0017] In summary, the technical solutions of the embodiments of the present invention have at least the following advantages and beneficial effects:

[0018] 1. Two curved clamps clamp the tube body in the through hole. During the tracheal intubation process, they can effectively avoid the compression of the tube body caused by the patient's body position change, thereby ensuring the normal supply of gas in the tube for a long time, thereby effectively reducing the workload of medical staff.

[0019] 2. The deflection angle of the driver is limited by the limiter. After the pipe body is clamped and positioned, the driver can be effectively prevented from rotating due to accidental contact, thereby improving the reliability of the entire device during actual use.

[0020] 3. By driving the paddle to move, the limiting member is driven to move in the limiting hole. The operation is simple and convenient, and the deflection angle of the driving member in the connecting hole can be adjusted more quickly, thereby improving the overall practicality of the device.

[0021] 4. During the intubation process, the second elastic member acts on the arc-shaped splint, so that the arc-shaped splint always maintains a vertical axis, further ensuring the smooth flow of air inside the pipeline during the subsequent intubation process, ensuring the normal supply of gas in the pipeline, improving the protection of the patient, and reducing the workload of medical staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0023] Figure 2This is a schematic structural diagram of a fixing plate according to an embodiment of the present utility model;

[0024] Figure 3 A cross-sectional view of a fixed support according to an embodiment of the present utility model;

[0025] Figure 4 This is a schematic diagram of the exploded structure of the driving member of an embodiment of the utility model;

[0026] Figure 5 This is a schematic structural diagram of a position limiting member according to an embodiment of the present utility model;

[0027] Figure 6 A cross-sectional view of a support rod according to an embodiment of the present invention;

[0028] Figure 7 This is a schematic diagram of the structure for clamping and limiting the pipe body according to an embodiment of the utility model.

[0029] Icons: 1. Fixing plate; 11. Through hole; 12. Connecting buckle; 13. Fixing belt; 14. Pipe body; 2. Fixed support; 21. Support rod; 22. Arc-shaped splint; 23. Accommodating hole; 3. Driving member; 31. Mounting hole; 32. Driving threaded rod; 33. Connecting hole; 34. Threaded hole; 35. Limiting ring; 36. Limiting groove; 4. Limiting member; 41. Limiting hole; 42. Slot; 43. First elastic member; 44. First inclined surface; 45. Second inclined surface; 5. Pick; 51. Strip hole; 52. Strip block; 6. Boss; 61. Anti-slip groove; 7. Rotating hole; 71. Rotating axis; 72. Second elastic member; 73. Anti-slip ring; 74. Stop block; 8. Anti-slip protrusion. DETAILED DESCRIPTION

[0030] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0031] The following reference Figures 1 to 7 The utility model is described in further detail.

[0032] Reference Figure 1 A tracheal tube fixing device includes a fixing plate 1, a through hole 11 for a pipe body 14 to pass through is opened on the fixing plate 1, connecting buckles 12 are fixedly provided on both sides of the fixing plate 1, and a fixing belt 13 is passed through each connecting buckle 12.

[0033] Among them, reference Figure 2One side of the through hole 11 is opened, and the opening on one side of the through hole 11 is in an "eight" shape, so that medical staff can more easily place the pipe body 14 into the through hole 11 through the opening. The side wall of the through hole 11 away from the opening is set to an arc shape, and the radius of the arc is adapted to the pipe body 14, which can provide a certain degree of protection for the pipe body 14.

[0034] Reference Figure 1 A fixed support 2 is provided on the fixed plate 1. The two fixed supports 2 are respectively provided on both sides of the through hole 11. A support rod 21 is provided on the side walls of the fixed supports 2 close to each other. An arc-shaped clamping plate 22 is provided at the end of the support rod 21. The convex surface of the arc-shaped clamping plate 22 is arranged toward the support rod 21. The concave surface of the arc-shaped clamping plate 22 is used to abut against the pipe body 14 (specifically, Figure 7 shown).

[0035] Further, refer to Figure 3 A receiving hole 23 is provided on the side walls of the fixed support 2 that are close to each other. The cross-section of the receiving hole 23 is rectangular. One end of the support rod 21 is slidably arranged in the receiving hole 23. The shape and size of the support rod 21 are adapted to the receiving hole 23.

[0036] Reference Figure 1 、 Figure 3 and Figure 5 A driving member 3 is provided on the fixed support 2, and the driving member 3 is used to drive the support rod 21 to move toward or away from the pipe body 14. As an embodiment of the present utility model, the driving member 3 is configured as a driving sleeve, and a mounting hole 31 is opened on the side wall of the fixed support 2 away from each other. The mounting hole 31 is connected to the accommodating hole 23, and a driving threaded rod 32 is rotatably provided in the mounting hole 31. One end of the driving threaded rod 32 is fixedly connected to the end of the support rod 21 away from the arc-shaped splint 22.

[0037] Reference Figure 3 、 4 and Figure 5 A connecting hole 33 is provided on the side wall of the fixed support 2 that is away from each other. The connecting hole 33 is coaxial with the mounting hole 31, and the diameter of the connecting hole 33 is larger than the diameter of the mounting hole 31. The driving member 3 is rotatably mounted in the connecting hole 33. Figure 4 The end of the driving threaded rod 32 away from the support rod 21 is provided with an external thread, and the end of the driving member 3 close to the support rod 21 is provided with a threaded hole 34 threadedly connected to the driving threaded rod 32, and an internal thread adapted to the external thread is provided in the threaded hole 34.

[0038] Reference Figure 3 、 4 and Figure 5A limit ring 35 is coaxially fixedly mounted on the end of the driver 3 near the support rod 21. The diameter of the limit ring 35 is larger than that of the driver 3. A limit slot 36 is defined at the end of the connecting hole 33 near the support rod 21. The limit ring 35 is rotatably mounted within the limit slot 36 along the axis of the connecting hole 33. When the driver 3 rotates on the fixed support 2, the limit ring 35 rotates within the limit slot 36, thereby preventing the driver 3 from disengaging from the connecting hole 33 and falling from the fixed support 2, thereby improving the overall practicality and reliability of the device.

[0039] In addition, as a possible implementation method of the present invention, a polytetrafluoroethylene sliding layer can be covered on the limiting ring 35, so as to effectively reduce the friction between the limiting ring 35 and the inner wall of the limiting groove 36, further facilitating medical staff to drive the driving part 3 to rotate on the fixed support 2.

[0040] Reference Figure 3 、 5 A limit member 4 is provided on the fixed support 2. The limit member 4 is used to limit the deflection angle of the driving member 3 in the connecting hole 33. As one embodiment of the present invention, the limit member 4 is configured as a latch. A limit hole 41 is provided inside the fixed support 2 in a direction perpendicular to the axis of the connecting hole 33. One end of the limit hole 41 is connected to the connecting hole 33. One end of the limit member 4 slides through the limit hole 41, and the other end extends out of the limit hole 41 and enters the connecting hole 33. A slot 42 is provided on the peripheral wall of the driving member 3 for inserting the end of the limit member 4. A plurality of slots 42 are evenly provided along the circumference of the driving member 3.

[0041] Among them, reference Figure 3 、 5 A first elastic member 43 is provided in the limiting hole 41. The first elastic member 43 is used to drive the limiting member 4 to move in a direction away from the limiting hole 41. As an embodiment of the present utility model, the first elastic member 43 is configured as a compression spring. One end of the first elastic member 43 abuts against the inner wall of the limiting hole 41, and the other end abuts against the end of the limiting member 4.

[0042] When clamping and positioning the pipe body 14, the support rod 21 can be driven to move in the accommodating hole 23 by rotating the driving member 3, and then the position of the arc-shaped clamping plate 22 can be adjusted to achieve the effect of clamping and positioning the pipe body 14. After completing the clamping and positioning of the pipe body 14, the limiting member 4 moves in the direction away from the limiting hole 41 under the action of the first elastic member 43, and then the end of the limiting member 4 is inserted into the slot 42. At this time, the deflection angle of the driving member 3 in the connecting hole 33 can be limited, and then the position of the support rod 21 and the arc-shaped clamping plate 22 in the horizontal direction can be limited.

[0043] Reference Figure 3 、5 A first inclined surface 44 is provided at one end of the limiting member 4 close to the driving member 3, so that the limiting member 4 is in an oblique wedge shape, as shown in FIG. Figure 5 As shown, the first inclined surface 44 is inclined downward in the direction close to the driving member 3, and a second inclined surface 45 is provided on the side wall where the slot 42 abuts against the first inclined surface 44. The first inclined surface 44 and the second inclined surface 45 are slidingly connected, and the inclination angle of the first inclined surface 44 is adapted to the inclination angle of the second inclined surface 45.

[0044] When the pipe body 14 needs to be clamped and positioned, the driving member 3 is driven to rotate clockwise, which can push the support rod 21 and the arc-shaped clamping plate 22 toward the direction close to the pipe body 14. In this process, as the driving member 3 rotates, the driving member 3 drives the slot 42 to deflect. Since the first inclined surface 44 and the second inclined surface 45 are in sliding contact at this time, the limiting member 4 can be pressed into the limiting hole 41 under the action of the first inclined surface 44 and the second inclined surface 45, thereby causing the end of the limiting member 4 to disengage from the slot 42. Therefore, when the driving member 3 is rotated clockwise, the limiting member 4 will not limit the deflection angle of the driving member 3; and after the clamping and positioning of the pipe body 14 is completed, if the driving member 3 is rotated counterclockwise, the limiting member 4 is inserted into the slot 42 under the action of the first elastic member 43. At this time, the driving member 3 cannot be driven to rotate counterclockwise, and the support rod 21 and the arc-shaped clamping plate 22 cannot be moved in the direction away from the pipe body 14, which effectively improves the reliability of the device as a whole during actual use.

[0045] Reference Figure 3 、 5 A paddle 5 is slidably provided on the fixed support 2, and the paddle 5 is used to drive the limiting member 4 to move in the limiting hole 41. A strip hole 51 is opened on the side walls of the fixed support 2 that are away from each other. The strip hole 51 is parallel to the limiting hole 41 and is connected to each other. A strip block 52 is slidably provided in the strip hole 51, and one end of the strip block 52 is fixedly connected to the limiting member 4, and the other end is fixedly connected to the paddle 5.

[0046] When it is necessary to drive the support rod 21 and the arc-shaped clamping plate 22 to move in the direction away from the pipe body 14, the paddle 5 is driven to move in the direction away from the driving member 3. The paddle 5 drives the limiting member 4 to move in the direction away from the driving member 3 through the strip block 52, thereby causing the end of the limiting member 4 to disengage from the slot 42. At this time, the driving member 3 can be driven to rotate counterclockwise.

[0047] Reference Figure 5 A boss 6 is fixedly provided at one end of the driving member 3 away from the support rod 21. The diameter of the boss 6 is larger than the diameter of the driving member 3. A plurality of anti-slip grooves 61 are provided on the peripheral wall of the boss 6. By providing the anti-slip grooves 61, the friction between the staff's hand and the driving member 3 can be effectively improved.

[0048] Reference Figure 6 A rotating hole 7 is opened at one end of the support rod 21 close to each other along the length direction of the support rod 21, and a rotating shaft 71 is coaxially rotated in the rotating hole 7. The convex surface of the arc-shaped splint 22 is fixedly connected to the end of the rotating shaft 71, and a second elastic member 72 is provided in the rotating hole 7. The second elastic member 72 acts on the rotating shaft 71. Under normal circumstances, the second elastic member 72 can drive the arc-shaped splint 22 to keep the axis vertical.

[0049] Reference Figure 6 , an anti-slip ring 73 is fixedly provided at the opening of the rotating hole 7, and a stop block 74 is fixedly provided at the end of the rotating shaft 71 away from the arc-shaped splint 22. As an embodiment of the present utility model, the second elastic member 72 is configured as a torsion spring, and the second elastic member 72 is sleeved on the rotating shaft 71. The second elastic member 72 is located between the stop block 74 and the anti-slip ring 73. One end of the second elastic member 72 is fixedly connected to the stop block 74, and the other end is fixedly connected to the anti-slip ring 73.

[0050] Reference Figure 6 An anti-slip protrusion 8 is provided on the concave surface of the arc-shaped clamping plate 22 . A plurality of anti-slip protrusions 8 are evenly provided along the surface of the arc-shaped clamping plate 22 . The anti-slip protrusions 8 are used to abut against the pipe body 14 .

[0051] As an embodiment of the present invention, the material of the anti-slip protrusion 8 is set to silicone rubber, which has a certain anti-slip effect and can also protect the pipe body 14, avoiding excessive pressure on the pipe body 14 and ensuring the normal supply of pipeline gas.

[0052] Reference Figure 7 When the pipe body 14 needs to be fixed in position, the fixing plate 1 is first placed on the patient's face. The fixing bands 13 on both sides of the fixing plate 1 are used to fix the fixing plate 1 on the patient's face. Then, the pipe body 14 is placed in the through hole 11. Afterwards, the medical staff simultaneously drives the driving members 3 on the two fixed supports 2 to rotate. As the driving members 3 rotate, the interlocking internal and external threads drive the driving threaded rod 32 to rotate in the mounting hole 31 while moving away from the driving member 3, thereby driving the support rod 21 to move away from the driving member 3, causing the two arc-shaped clamping plates 22 to move toward each other and finally clamp the pipe body 14 in the through hole 11. In the subsequent tracheal intubation process, the pressure on the pipe body 14 caused by changes in the patient's body position can be effectively avoided, thereby ensuring the normal supply of pipeline gas for a long time, thereby effectively reducing the workload of medical staff.

[0053] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A tracheal tube fixing device, characterized in that: The invention comprises a fixing plate (1), a through hole (11) for a pipe body (14) to pass through is formed on the fixing plate (1), a fixing support (2) is provided on the fixing plate (1), two fixing supports (2) are provided, and the two fixing supports (2) are respectively arranged on both sides of the through hole (11), support rods (21) are arranged in a horizontal direction on the side walls of the fixing supports (2) that are close to each other, an arc-shaped clamping plate (22) is provided at one end of the support rod (21) away from the fixing support (2), the concave surface of the arc-shaped clamping plate (22) is used to abut against the pipe body (14), a driving member (3) is provided on the fixing support (2), and the driving member (3) is used to drive the support rod (21) to move toward or away from the pipe body (14), and connecting buckles (12) are fixedly provided at both ends of the fixing plate (1) in the longitudinal direction, and a fixing belt (13) is passed through the connecting buckle (12).

2. The endotracheal tube fixing device according to claim 1, characterized in that: The driving member (3) is configured as a driving sleeve. A receiving hole (23) is provided on the side wall of the fixed support (2) that is close to each other. One end of the support rod (21) is slidably inserted into the receiving hole (23). A mounting hole (31) is provided on the side wall of the fixed support (2) that is away from each other. The mounting hole (31) is connected to the receiving hole (23). A driving threaded rod (32) is rotatably provided in the mounting hole (31). One end of the driving threaded rod (32) is fixedly connected to the support rod (21). The driving member (3) is rotatably provided on the side wall of the fixed support (2) that is away from each other. A threaded hole (34) threadedly connected to the driving threaded rod (32) is provided on the driving member (3).

3. The endotracheal tube fixing device according to claim 2, characterized in that: A connecting hole (33) is provided on a side wall of the fixed support (2) that is away from each other. The connecting hole (33) is coaxial with the mounting hole (31), and the diameter of the connecting hole (33) is larger than the diameter of the mounting hole (31). The driving member (3) is rotatably arranged in the connecting hole (33). A limiting ring (35) is coaxially fixedly provided at one end of the driving member (3) close to the support rod (21). A limiting groove (36) is provided at one end of the connecting hole (33) close to the support rod (21). The limiting ring (35) is rotatably provided in the limiting groove (36) along the axial direction of the connecting hole (33). A limiting member (4) is provided on the fixed support (2). The limiting member (4) is used to limit the deflection angle of the driving member (3) in the connecting hole (33).

4. The endotracheal tube fixing device according to claim 3, characterized in that: The limiting member (4) is configured as a latch, and a limiting hole (41) is provided in the fixed support (2) along a direction perpendicular to the axis of the connecting hole (33). The limiting hole (41) is communicated with the connecting hole (33). The limiting member (4) is slidably inserted into the limiting hole (41). A slot (42) for inserting the end of the limiting member (4) is provided on the peripheral wall of the driving member (3). A plurality of slots (42) are uniformly provided along the circumference of the driving member (3). A first elastic member (43) is provided in the limiting hole (41). The first elastic member (43) is used to drive the limiting member (4) to move in a direction away from the limiting hole (41). A paddle (5) is provided on the fixed support (2). The paddle (5) is used to drive the limiting member (4) to move in the limiting hole (41).

5. The endotracheal tube fixing device according to claim 4, characterized in that: A first inclined surface (44) is provided at one end of the limiting member (4) close to the driving member (3), and a second inclined surface (45) is provided on a side wall of the slot (42) where the first inclined surface (44) abuts against the first inclined surface (44). The first inclined surface (44) and the second inclined surface (45) are slidably connected, and an inclination angle of the first inclined surface (44) matches an inclination angle of the second inclined surface (45).

6. The endotracheal tube fixing device according to claim 4, characterized in that: A strip hole (51) is provided on the side walls of the fixed support (2) that are away from each other. The strip hole (51) is parallel to the limiting hole (41) and is connected to each other. A strip block (52) is slidably provided in the strip hole (51). One end of the strip block (52) is fixedly connected to the limiting member (4), and the other end is fixedly connected to the paddle (5).

7. The endotracheal tube fixing device according to claim 2, characterized in that: A boss (6) is fixedly provided at one end of the driving member (3) away from the support rod (21); the diameter of the boss (6) is larger than the diameter of the driving member (3); and a plurality of anti-slip grooves (61) are provided on the peripheral wall of the boss (6).

8. The endotracheal tube fixing device according to any one of claims 1 to 7, characterized in that: A rotation hole (7) is provided at one end of the support rod (21) close to each other along the length direction of the support rod (21), a rotation shaft (71) is provided in the rotation hole (7) for coaxial rotation, a convex surface of the arc-shaped clamping plate (22) is fixedly connected to the end of the rotation shaft (71), a second elastic member (72) is provided in the rotation hole (7), the second elastic member (72) acts on the rotation shaft (71), and the second elastic member (72) can drive the arc-shaped clamping plate (22) to maintain a vertical axis state.

9. The endotracheal tube fixing device according to claim 8, characterized in that: An anti-slip ring (73) is fixedly provided at the opening of the rotating hole (7), a stopper (74) is fixedly provided at one end of the rotating shaft (71) away from the arc-shaped clamping plate (22), the second elastic member (72) is configured as a torsion spring, the second elastic member (72) is sleeved on the rotating shaft (71), the second elastic member (72) is located between the stopper (74) and the anti-slip ring (73), one end of the second elastic member (72) is fixedly connected to the stopper (74), and the other end is fixedly connected to the anti-slip ring (73).

10. The endotracheal tube fixing device according to claim 8, characterized in that: An anti-slip protrusion (8) is provided on the concave surface of the arc-shaped clamping plate (22), and a plurality of the anti-slip protrusions (8) are evenly provided along the surface of the arc-shaped clamping plate (22). The anti-slip protrusions (8) are used to abut against the pipe body (14); one side of the through hole (11) is opened, and the opening on one side of the through hole (11) is in an "eight" shape.

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