Trachea cannula fixing assembly
By designing a tracheal intubation fixation assembly, using the combination of arc plate, insert plate and connecting ring, the problem of easy disengagement of the tracheal intubation fixation in the prior art is solved, achieving a safer fixation effect.
Patent Information
- Application Number
- CN202510148608.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-11
- Publication Date
- 2025-04-11
AI Technical Summary
The existing tracheal intubation fixation method is prone to detubeing, resulting in safety hazards.
A tracheal intubation fixing assembly is designed, including a curved plate, a plug plate and a connecting ring, which is fixed to the patient's head through the fixing mechanism of the curved plate. The insertion plate and the curved plate are used to clamp the tracheal intubation, and are connected to the plug plate and a curved plate to fix the position of the tracheal intubation and the tooth pad.
It effectively reduces the situation where the tracheal intubation is pulled out by the patient, reduces safety risks, and avoids the problem of detube removal by using medical tape.
Smart Images
Figure CN119792754A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of tracheal cannulas, and in particular relates to a tracheal cannula fixing assembly. Background Art
[0002] Endotracheal intubation is to insert an endotracheal tube into the patient's trachea through the mouth or nose to assist the patient's breathing. When the endotracheal tube is inserted into the patient's trachea through the mouth, a tooth pad needs to be placed at the patient's mouth to prevent the patient from biting, breaking or flattening the endotracheal tube; put the endotracheal tube into the groove on one side of the tooth pad, and then wrap the endotracheal tube and the tooth pad with medical tape to fix the endotracheal tube and the tooth pad together. Stick one end of another piece of medical tape to the endotracheal tube and the tooth pad, and then stick the rest of the medical tape to the patient's face to fix the position of the endotracheal tube and the tooth pad.
[0003] The above fixing method is prone to the problem of tube falling off when the patient is extubated. Summary of the invention
[0004] The embodiment of the present invention provides a tracheal tube fixing assembly, aiming to solve the problem that the tube is easily dislodged in the fixing method in the prior art.
[0005] To achieve the above object, the technical solution adopted by the present invention is: Provided is a tracheal tube fixing assembly, comprising: The arc-shaped plate has an avoidance hole for the endotracheal tube and the dental pad to pass through, and the avoidance hole is connected to one side of the arc-shaped plate to form an opening; A fixing mechanism connected to the arc-shaped plate; the fixing mechanism and the arc-shaped plate form a ring structure to fix the arc-shaped plate on the patient's head; The plug plate is slidably matched with the opening of the arc plate; the plug plate has a matching surface that contacts the outer peripheral wall of the endotracheal tube and the outer peripheral wall of the bite block; the plug plate and the arc plate are relatively fixed in the thickness direction; Among them, one side of the mouthpiece is provided with a groove, and a part of the endotracheal tube is located in the groove; a connecting ring is fixedly provided on the mouthpiece, and the connecting ring is detachably connected to the arc plate and the plug plate respectively; after the plug plate is plugged into place, the plug plate and the arc plate can clamp the endotracheal tube.
[0006] In a possible implementation, threaded holes are respectively provided at positions corresponding to the connecting ring, the plug plate and the arc-shaped plate, and the connecting ring has a connecting column at the position of the threaded hole, and the outer peripheral wall of the connecting column has an external thread; Wherein, positions on the plug plate and the arc-shaped plate corresponding to the connecting column are both provided with threaded holes, and the threaded holes are threadably matched with the connecting column.
[0007] In a possible implementation, a pressure plate is provided on the top of the connecting column, and when the connecting column is rotated into place, the pressure plate contacts the connecting ring; Wherein, the pressing plate is provided with an operating rib plate so that an operator can rotate the connecting column.
[0008] In a possible implementation, the two connecting posts on the connecting ring are symmetrically arranged about the endotracheal tube; the fixing assembly also includes a fixing rope, which contacts the outer peripheral wall of the endotracheal tube and is tied at the position of the endotracheal tube after passing through the two connecting posts.
[0009] In a possible implementation, the connection ring has a fixing groove at a position corresponding to the fixing rope, and the connection ring has a fixing plate at the position of the fixing groove; Among them, there is a pressure plate on the top of the connecting column; after the fixing rope is tied to the endotracheal tube and the dental pad, the fixing plate is placed on the fixing rope and is located directly above the fixing groove; after the connecting column is rotated into place, the pressure plate presses the fixing plate into the fixing groove.
[0010] In a possible implementation manner, a top of the plug plate and a top of the arc-shaped plate are respectively connected with protrusions for supporting a connecting ring.
[0011] In a possible implementation, the connection positions of the two protrusions respectively have a connection groove and a connection plate, and the connection groove and the connection plate respectively have threaded holes aligned with each other; the connection ring is threadedly connected to the connection position of the two protrusions with a connection column, and the connection column is respectively threadedly matched with the two protrusions.
[0012] In a possible implementation, the arc-shaped plate has sliding grooves on both sides of the opening position, and the plug plate is fixedly provided with sliding rails that slidably cooperate with the sliding grooves.
[0013] In a possible implementation manner, the top of the plugging plate is coplanar with the top of the curved plate, and the thickness of the plugging plate is smaller than the thickness of the curved plate.
[0014] In a possible implementation, the groove of the dental pad has a slot, and the outer peripheral wall of the tracheal tube has an inserting portion that is inserted and matched with the slot.
[0015] Compared with the prior art, the endotracheal tube fixing assembly provided by the present invention is as follows: after the endotracheal tube is placed in place, a tooth pad is placed in the patient's mouth; then an arc plate is inserted into the endotracheal tube and the tooth pad from an open position, and the arc plate is fixed on the patient's face by a fixing mechanism; an insert plate is inserted into the open position of the arc plate, and the insert plate cooperates with the arc plate to clamp the endotracheal tube; the insert plate and the arc plate are connected respectively by a connecting ring, so that the positions of the endotracheal tube and the tooth pad can be relatively fixed; after the insert plate and the arc plate clamp the endotracheal tube, and the tooth pad is fixed on the arc plate, the situation that the patient pulls out the endotracheal tube can be reduced, thereby reducing safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 A schematic diagram of a tracheal tube fixing assembly provided by an embodiment of the present invention; Figure 2 for Figure 1 The enlarged schematic diagram of the middle A part; Figure 3 A schematic diagram of a bite block portion of an endotracheal tube fixing assembly provided by an embodiment of the present invention; Figure 4 for Figure 3 The enlarged schematic diagram of the middle part B; Figure 5 A schematic diagram of a slot portion of a tracheal tube fixing assembly provided by an embodiment of the present invention; Figure 6 for Figure 5 The enlarged schematic diagram of the middle C part; Figure 7 A schematic diagram of an arc plate and a plug plate portion of a tracheal tube fixing assembly provided in an embodiment of the present invention; Figure 8 for Figure 7 The enlarged schematic diagram of the middle D part; Fig. 9 A schematic diagram of a plug plate portion of a tracheal tube fixing assembly provided by an embodiment of the present invention; Fig.10 A schematic diagram of a plug plate portion of a tracheal tube fixing assembly provided by an embodiment of the present invention; Fig.11 A schematic diagram of a tracheal cannula and a plug-in portion of a tracheal cannula fixing assembly provided in an embodiment of the present invention; Fig.12 A schematic diagram of a plug-in portion of a tracheal tube fixing assembly provided in an embodiment of the present invention.
[0017] Explanation of the reference numerals: 1. arc-shaped plate; 11. connecting hole; 12. avoidance hole; 13. slide groove; 2. plug plate; 21. slide rail; 3. endotracheal tube; 31. plug-in portion; 311. binding groove; 4. tooth pad; 41. groove; 42. connecting ring; 421. fixing groove; 422. fixing plate; 423. limiting groove; 43. slot; 5. connecting column; 51. pressure plate; 52. operating rib; 6. fixing rope; 7. protrusion; 71. connecting groove; 72. connecting plate. DETAILED DESCRIPTION
[0018] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.
[0019] Please also read Figures 1 to 12 Now, a tracheal tube fixing assembly provided by the present invention is described. The endotracheal tube fixing assembly comprises an arc plate 1 and an insert plate 2; connection holes 11 are respectively provided at the top of the arc plate 1 near the two ends; the connection holes 11 are used to connect with a bandage (not shown in the figure), and the arc plate 1 can be fixed to the patient's head by the bandage; the arc plate 1 has an avoidance hole 12 for the endotracheal tube 3 and the bite pad 4 to pass through, and the avoidance hole 12 is connected to one side of the arc plate 1 to form an opening; the insert plate 2 is slidably matched with the opening of the arc plate 1; the insert plate 2 has a matching surface that contacts the outer peripheral wall of the endotracheal tube 3 and the outer peripheral wall of the bite pad 4; the insert plate 2 and the arc plate 1 are relatively fixed in the thickness direction; wherein, one side of the bite pad 4 has a groove 41, and a part of the endotracheal tube 3 is located in the groove 41; a connecting ring 42 is fixedly provided on the bite pad 4, and the connecting ring 42 is detachably connected to the arc plate 1 and the insert plate 2 respectively; after the insert plate 2 is plugged into place, the insert plate 2 and the arc plate 1 can clamp the endotracheal tube 3.
[0020] The present invention provides a tracheal tube 3 fixing assembly. Compared with the prior art, after the tracheal tube 3 is placed in place, the bite pad 4 is placed in the patient's mouth; then the arc plate 1 is inserted into the tracheal tube 3 and the bite pad 4 from the opening position, and the arc plate 1 is fixed to the patient's face by a fixing mechanism; the plug plate 2 is inserted into the opening position of the arc plate 1, and at this time the plug plate 2 cooperates with the arc plate 1 to clamp the tracheal tube 3; the plug plate 2 and the arc plate 1 are connected respectively by a connecting ring 42, so that the positions of the tracheal tube 3 and the bite pad 4 can be relatively fixed; after the plug plate 2 and the arc plate 1 clamp the tracheal tube 3, and the bite pad 4 is fixed on the arc plate 1, the situation that the patient pulls out the tracheal tube 3 can be reduced; compared with the prior art, the above-mentioned fixing method of the present application does not require cutting of medical tape, which can reduce safety hazards.
[0021] The fixing mechanism may be a binding strap or a Velcro; the arc-shaped plate 1 has connecting holes 11 at both ends thereof.
[0022] When the fixing mechanism is Velcro, the fixing mechanism includes a section of velvet surface and two sections of hook surface. The two sections of hook surface are respectively located at the two ends of the arc plate 1. One end of each section of the hook surface passes through the connecting hole 11 of the arc plate 1 and is fixed on the arc plate 1. When in use, the velvet surface passes through the patient's neck with the velvet surface facing outward; then the hook surfaces at the two ends of the arc plate 1 are bonded to the velvet surface. In the above manner, the arc plate 1 can be fixed to the patient's head; compared with the prior art method of bonding by tape, the Velcro bonding method in the present application has a larger contact area and a stronger bonding. A medical cushioning layer is provided at the positions where the hook surface and the velvet surface contact the patient.
[0023] When the fixing mechanism is a strap, the strap is divided into two sections, one end of each section of the strap is fixed to one end of the arc plate 1, and the other ends of the two sections of the strap are passed around the patient's head, and the two sections of the strap are tied together to fix the arc plate 1 to the patient's head. By the above-mentioned tying and fixing method, the arc plate 1 can be firmly fixed to the patient's head.
[0024] It should be noted that the avoidance hole 12 of the arc plate 1 is located at the patient's mouth, and the length of the plug plate 2 is slightly greater than the length of the patient's mouth; when the patient needs to suction sputum and oral care, the plug plate 2 is removed from the arc plate 1, and then the patient is suctioned and oral care is performed. Therefore, the above-mentioned configuration of the present application is also convenient for suctioning sputum and oral care of the patient.
[0025] The two ends of the arc plate 1 are located on the patient's face; when the position of the arc plate 1 is fixed, a medical cushion layer is placed between the arc plate 1 and the patient's face, and the medical cushion layer can be a medical foam dressing; a medical cushion layer is also placed at the position where the fixing mechanism contacts the patient's skin; through the above settings, the occurrence of pressure sores can be reduced.
[0026] Through the above-mentioned configuration of the present application, the arc plate 1 can also support the endotracheal tube 3 and the bite block 4 without the need to provide additional supporting components for the endotracheal tube 3 .
[0027] In some embodiments, Figures 1 to 12 As shown, threaded holes are respectively provided at positions corresponding to the plug plate 2 and the arc plate 1, and the connecting ring 42 has a connecting column 5 at the position of the threaded hole, and the outer peripheral wall of the connecting column 5 has an external thread; wherein, threaded holes are provided at positions corresponding to the connecting column 5 on the plug plate 2 and the arc plate 1, and the threaded holes are threadedly matched with the connecting column 5.
[0028] It should be noted that when the connecting column 5 is in the initial position, the bottom of the connecting column 5 is located in the threaded hole. Therefore, when the tooth pad 4 is placed in the patient's mouth, the bottom of the connecting column 5 will not contact the patient's skin, reducing the possibility of scratching the patient's skin. After the arc plate 1 and the plug plate 2 clamp the tracheal tube 3, the threaded holes on the plug plate 2 and the arc plate 1 are respectively aligned with the corresponding connecting column 5 on the connecting ring 42. At this time, by rotating the connecting column 5, the connecting column 5 can be threadedly matched with the arc plate 1 to fix the tooth pad 4 on the arc plate 1; when the connecting column 5 is threadedly matched with the plug plate 2, the position of the plug plate 2 can be limited, so that the plug plate 2 maintains the position of clamping the tracheal tube 3, avoiding the situation where the plug plate 2 is separated from the arc plate 1.
[0029] In some embodiments, Figures 1 to 12 As shown, a pressing plate 51 is provided on the top of the connecting column 5 , and when the connecting column 5 is rotated into position, the pressing plate 51 contacts the connecting ring 42 ; wherein, an operating rib 52 is provided on the pressing plate 51 to enable an operator to rotate the connecting column 5 .
[0030] It should be noted that the threaded holes on the plug plate 2 and the arc plate 1 are blind holes, so after the connecting column 5 is rotated into place, the connecting column 5 will not pass through the arc plate 1 and the plug plate 2; by setting a pressure plate 51 on the connecting column 5, the installation position of the connecting column 5 can be limited. After the pressure plate 51 contacts the connecting ring 42, it means that the connecting ring 42 is installed in place, and the plug plate 2, the connecting ring 42 and the arc plate 1 form a whole. By setting an operating rib plate 52 on the pressure plate 51, the operator can rotate the connecting column 5 by operating the rib plate 52 without the need to use other tools to rotate the connecting column 5, thereby improving the convenience of operation.
[0031] In some embodiments, Figures 1 to 12 As shown, the two connecting columns 5 on the connecting ring 42 are symmetrically arranged about the endotracheal tube 3; the fixing assembly also includes a fixing rope 6, which contacts the outer peripheral wall of the endotracheal tube 3, and after passing through the two connecting columns 5, is tied at the position of the endotracheal tube 3.
[0032] It should be noted that the connecting column 5 can serve as a guide and anchor point for the fixing rope 6, so that the fixing rope 6 can fasten the endotracheal tube 3 to the dental pad 4; after the connecting column 5 is rotated into place, the pressure plate 51 on the connecting column 5 can press the fixing rope 6 to reduce the loosening of the fixing rope 6.
[0033] In some embodiments, Figures 1 to 12As shown, the connection ring 42 has a fixing groove 421 at a position corresponding to the fixing rope 6, and the connection ring 42 has a fixing plate 422 at the position of the fixing groove 421; wherein, the top of the connection column 5 has a pressing plate 51; after the fixing rope 6 is tied to the tracheal tube 3 and the dental pad 4, the fixing plate 422 is placed on the fixing rope 6 and is located directly above the fixing groove 421; after the connection column 5 is rotated into place, the pressing plate 51 presses the fixing plate 422 into the fixing groove 421. The fixing plate 422 has a limiting groove 423 that is plugged and matched with the fixing rope 6.
[0034] It should be noted that the pressing plate 51 presses down a part of the fixing plate 422, and a connecting rope (not shown in the figure) is fixed to the unpressed part of the fixing plate 422, and the other end of the connecting rope is fixed to the connecting ring 42; through the above arrangement, it is possible to avoid the fixing plate 422 falling off the connecting ring 42.
[0035] After the fixing rope 6 is fastened, the fixing plate 422 is pressed onto the fixing rope 6, and the fixing plate 422 is located at the position of the fixing groove 421; by tightening the connecting column 5, the pressing plate 51 can press the fixing plate 422 downward, and finally the fixing plate 422 is pressed into the fixing groove 421. Through the above arrangement, the fixing rope 6 can tighten the tracheal tube 3, reducing the possibility of the tracheal tube 3 being pulled out by the patient.
[0036] In some embodiments, Figures 1 to 12 As shown, the top of the plug plate 2 and the top of the arc plate 1 are respectively connected with protrusions 7 for supporting the connecting ring 42; the connecting positions of the two protrusions 7 are respectively provided with connecting grooves 71 and connecting plates 72, and the connecting grooves 71 and the connecting plates 72 are respectively provided with threaded holes aligned with each other; the connecting ring 42 is threadedly connected with connecting columns 5 at the connecting positions of the two protrusions 7, and the connecting columns 5 are respectively threadedly matched with the two protrusions 7.
[0037] Exemplarily, the example in which the connecting groove 71 is arranged on the protrusion 7 on the plug board 2 and the connecting plate 72 is arranged on the protrusion 7 of the arc plate 1 is used for explanation; after the plug board 2 is plugged into place, the connecting groove 71 is located below the connecting plate 72, and the threaded hole on the connecting groove 71 is aligned with the threaded hole on the connecting plate 72; by threaded cooperation between the connecting column 5 and the connecting plate 72 and the connecting groove 71, the position of the plug board 2 and the arc plate 1 can be fixed, and the connecting ring 42 can be fixed on the arc plate 1.
[0038] It should be noted that the threaded hole on the connecting groove 71 is a blind hole. When the connecting column 5 is threadedly engaged with the connecting groove 71, the connecting column 5 will not pass through the connecting groove 71, thereby preventing the connecting column 5 from scratching the patient's skin.
[0039] In some embodiments, Figures 1 to 12As shown, the arc-shaped plate 1 has sliding grooves 13 on both sides of the opening position, and the inserting plate 2 is fixedly provided with sliding rails 21 that slidably cooperate with the sliding grooves 13 .
[0040] It should be noted that, by providing a slide rail 21 on the plug plate 2 and a slide groove 13 on the arc plate 1, the plug plate 2 can be slidably matched with the arc plate 1, and after the plug plate 2 and the arc plate 1 are slidably matched, the plug plate 2 and the arc plate 1 are relatively fixed in the thickness direction; and after the connecting column 5 is threadedly matched with the plug plate 2 and the arc plate 1, the plug plate 2 can be fixed on the arc plate 1 to prevent the plug plate 2 from falling off the arc plate 1.
[0041] In some embodiments, Figures 1 to 12 As shown, the top of the insert plate 2 is coplanar with the top of the arc-shaped plate 1 , and the thickness of the insert plate 2 is less than the thickness of the arc-shaped plate 1 .
[0042] It should be noted that by setting the thickness of the plug plate 2 to be smaller than the thickness of the arc plate 1, after the arc plate 1 is fixed on the patient's face, there is a sliding space between the opening position of the arc plate 1 and the patient's face. Since the thickness of the plug plate 2 is smaller than the thickness of the arc plate 1, when the plug plate 2 slides with the arc plate 1, the contact between the plug plate 2 and the patient's skin can be reduced, thereby reducing the possibility of pinching the patient's skin.
[0043] In some embodiments, Figures 1 to 12 As shown, the groove 41 of the bite block 4 has a slot 43, and the outer peripheral wall of the endotracheal tube 3 has an inserting portion 31 that is plugged into the slot 43; the side wall of the inserting portion 31 has a binding groove 311 that is circumferentially arranged around the endotracheal tube 3, and the binding groove 311 is a through groove; when the inserting portion 31 is placed on the outer peripheral wall of the endotracheal tube 3, one end of the rolling belt passes through the binding groove 311, and then the inserting portion 31 is fixed to the endotracheal tube 3 by the rolling belt; through the above arrangement, the relative positions of the inserting portion 31 and the endotracheal tube 3 can be fixed.
[0044] It should be noted that by providing a slot 43 at the position of the groove 41 of the bite block 4 and providing an inserting portion 31 on the outer wall of the tracheal tube 3, the tracheal tube 3 can be plugged and matched with the bite block 4; after the plug plate 2 and the arc plate 1 clamp the tracheal tube 3 and the bite block 4 is fixed to the arc plate 1, the tracheal tube 3 can be axially restricted, thereby reducing the situation where the patient pulls out the tracheal tube 3.
[0045] In addition, the slot 43 and the connecting part 31 are arranged at a position close to the connecting ring 42 of the bite block 4. After the tracheal tube 3 and the bite block 4 are fastened by the fixing rope 6, the fixing rope 6 can provide positive pressure to the connecting part 31, thereby making the connecting part 31 stably connected with the slot 43.
[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A tracheal tube fixing assembly, characterized in that: include: The arc-shaped plate has an avoidance hole for the endotracheal tube and the dental pad to pass through, and the avoidance hole is connected to one side of the arc-shaped plate to form an opening; A fixing mechanism connected to the arc-shaped plate; The fixing mechanism and the arc-shaped plate form a ring structure to fix the arc-shaped plate on the patient's head; The plug plate is slidably matched with the opening of the arc plate; the plug plate has a matching surface that contacts the outer peripheral wall of the endotracheal tube and the outer peripheral wall of the bite block; The insert plate and the arc-shaped plate are relatively fixed in the thickness direction; Among them, one side of the mouthpiece is provided with a groove, and a part of the endotracheal tube is located in the groove; a connecting ring is fixedly provided on the mouthpiece, and the connecting ring is detachably connected to the arc plate and the plug plate respectively; after the plug plate is plugged into place, the plug plate and the arc plate can clamp the endotracheal tube.
2. The endotracheal tube fixing assembly according to claim 1, characterized in that: The connection ring and the positions corresponding to the plug plate and the arc-shaped plate are respectively provided with threaded holes, the connection ring has a connection column at the position of the threaded hole, and the outer peripheral wall of the connection column has an external thread; Wherein, positions on the plug plate and the arc-shaped plate corresponding to the connecting column are both provided with threaded holes, and the threaded holes are threadably matched with the connecting column.
3. The endotracheal tube fixing assembly according to claim 2, characterized in that: The top of the connecting column is provided with a pressing plate, and when the connecting column is rotated into place, the pressing plate contacts the connecting ring; Wherein, the pressing plate is provided with an operating rib plate so that an operator can rotate the connecting column.
4. The endotracheal tube fixing assembly according to claim 2, characterized in that: The two connecting posts on the connecting ring are symmetrically arranged about the endotracheal tube; the fixing assembly also includes a fixing rope, which contacts the outer peripheral wall of the endotracheal tube and is tied at the position of the endotracheal tube after passing around the two connecting posts.
5. The endotracheal tube fixing assembly according to claim 4, characterized in that: The connection ring has a fixing groove at a position corresponding to the fixing rope, and the connection ring has a fixing plate at the position of the fixing groove; Among them, there is a pressure plate on the top of the connecting column; after the fixing rope is tied to the endotracheal tube and the dental pad, the fixing plate is placed on the fixing rope and is located directly above the fixing groove; after the connecting column is rotated into place, the pressure plate presses the fixing plate into the fixing groove.
6. The endotracheal tube fixing assembly according to claim 2, characterized in that: The top of the insert plate and the top of the arc plate are respectively connected with protrusions for supporting the connecting ring.
7. The endotracheal tube fixing assembly according to claim 6, characterized in that: The connection positions of the two protrusions are respectively provided with a connection groove and a connection plate, and the connection groove and the connection plate are respectively provided with threaded holes aligned with each other; a connection column is threadedly connected to the connection position of the two protrusions on the connection ring, and the connection column is respectively threadedly matched with the two protrusions.
8. The endotracheal tube fixing assembly according to claim 1, characterized in that: The arc-shaped plate has sliding grooves on both sides of the opening position, and the plug plate is fixedly provided with sliding rails that slidably cooperate with the sliding grooves.
9. The endotracheal tube fixing assembly according to claim 1, characterized in that: The top of the inserting plate is coplanar with the top of the arc-shaped plate, and the thickness of the inserting plate is smaller than the thickness of the arc-shaped plate.
10. The endotracheal tube fixing assembly according to claim 1, characterized in that: The groove position of the dental pad is provided with a slot, and the outer peripheral wall of the tracheal cannula is provided with an inserting portion which is inserted and matched with the slot.