Trachea cannula fixing device

By designing a detachable connection and an alternately adjustable fixation strap position, combined with airbag support, the problem of pressure injury to the patient's face caused by existing endotracheal intubation fixation devices has been solved, achieving a more comfortable and effective fixation effect.

CN223887217UActive Publication Date: 2026-02-10CHONGQING BANAN DISTRICT SECOND PEOPLES HOSPITAL
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Patent Information

Application Number
CN202423015549.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-05
Publication Date
2026-02-10
Estimated Expiration
2034-12-05

AI Technical Summary

Technical Problem

Existing endotracheal tube fixation devices can easily cause pressure injuries to the patient's face when fixing the endotracheal tube.

Method used

An endotracheal intubation fixation device was designed, including a bite block, a first fixation strap, a second fixation strap, a third fixation strap, and a fixation part. By alternately adjusting the position of the fixation straps and using a detachable connection structure, combined with an air bag and an airway, the device reduces prolonged pressure on the patient's face.

Benefits of technology

It reduces pressure damage to the patient's face and improves comfort and fixation effectiveness.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a trachea cannula fixing device which comprises a bite block, a first fixing band, a second fixing band, a third fixing band and a fixing portion, the first end of the first fixing band is fixedly connected with the left side face of the bite block, and the first end of the second fixing band is fixedly connected with the upper side face of the bite block. The first end of the third fixing band is fixedly connected with the lower side face of the bite block, and the fixing part is used for detachably and fixedly connecting the second end of the first fixing band with the second end of the second fixing band and the second end of the third fixing band. The second end of the first fixing band is located between the second end of the second fixing band and the second end of the third fixing band in the vertical direction. Due to the adoption of the technical scheme, when the tracheal intubation fixing device is used for fixing a tracheal catheter, the possibility of pressure injury to the face of a patient can be reduced.
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Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a tracheal intubation fixation device. Background Technology

[0002] Endotracheal intubation is the process of inserting a specially designed endotracheal tube through the mouth or nose and through the glottis into the trachea or bronchus. Endotracheal intubation provides optimal conditions for airway patency, ventilation, oxygen supply, and airway suction, and is a crucial measure for rescuing patients with respiratory dysfunction. After endotracheal intubation, a endotracheal tube fixation device is used to secure the tube and reduce the possibility of dislodgement.

[0003] Currently, commonly used endotracheal tube fixation devices include a bite block and two straps fixed to the bite block. After endotracheal intubation, one end of the bite block is placed in the patient's mouth, and the endotracheal tube is then secured to the bite block with tape. The two straps are then wrapped around the back of the patient's head and tied together, thus securing the endotracheal tube. However, when using this type of endotracheal tube fixation device, the straps press against the patient's face for an extended period, which can easily cause pressure injuries to the face. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a endotracheal tube fixation device to solve the technical problem that the use of existing endotracheal tube fixation devices to fix the endotracheal tube can easily cause pressure damage to the patient's face.

[0005] This utility model is achieved through the following technical solution:

[0006] An endotracheal tube fixation device includes a bite block, a first fixation strap, a second fixation strap, a third fixation strap, and a fixation part. The first end of the first fixation strap is fixedly connected to the left side of the bite block, the first end of the second fixation strap is fixedly connected to the upper side of the bite block, and the first end of the third fixation strap is fixedly connected to the lower side of the bite block. The fixation part is used to detachably fix the second end of the first fixation strap to the second ends of the second and third fixation straps, so that the second end of the first fixation strap is positioned between the second ends of the second and third fixation straps in the vertical direction.

[0007] Furthermore, the fixing part includes a fixing plate, the second end of the first fixing strap is detachably fixedly connected to the fixing plate, and the second ends of the second fixing strap and the third fixing strap are both fixedly connected to the fixing plate.

[0008] Furthermore, the rear side of the fixing plate is provided with a hook and loop fastener, and the inner side of the second end of the first fixing strap is provided with a hook and loop fastener.

[0009] Furthermore, the fixing part also includes a plurality of airbags fixed to the front side of the fixing plate.

[0010] Furthermore, the fixing part also includes multiple air guide tubes and multiple valves. The multiple air guide tubes correspond one-to-one with the multiple airbags. The first end of each air guide tube passes forward through the fixing plate and connects to the corresponding airbag. The multiple valves are correspondingly arranged on the multiple air guide tubes.

[0011] Furthermore, the dental pad includes a round tube and a fixing rod. The right side of the round tube has an opening for an air supply conduit to enter the round tube, and the fixing rod protrudes forward from the front end of the tube wall.

[0012] Furthermore, the circular tube includes a first tube segment and a second tube segment, the second tube segment being concentrically fixed at the front end of the second tube segment, and the second tube segment being rotatably connected to the first tube segment; the fixing rod is formed by protruding forward from the front end of the tube wall of the circular tube; the first end of the first fixing band, the first end of the second fixing band, and the first end of the third fixing band are all fixedly connected to the second tube segment.

[0013] Furthermore, the rear end face of the second pipe section is recessed to form an annular groove, and the outer side wall of the annular groove is recessed to form an annular limiting groove; the dental pad also includes a rotating ring disposed in the annular groove and cooperating with the annular groove, and a limiting ring disposed in the limiting groove and cooperating with the limiting groove, the rear end of the rotating ring being fixedly connected to the front end of the first pipe section, and the limiting ring being fixedly connected to the rotating ring.

[0014] Furthermore, it also includes a convex ring and a connecting portion. The convex ring is disposed around the first pipe section, and the connecting portion is used to fix the convex ring to the first pipe section. A notch is formed on the convex ring at the position corresponding to the opening.

[0015] Furthermore, the connecting portion includes a first adhesive tape fixed to the rear side of the convex ring and a second adhesive tape fixed to the front side of the convex ring.

[0016] The beneficial effects of this utility model are as follows:

[0017] When using the endotracheal tube fixation device described in this utility model to fix the endotracheal tube, the possibility of pressure injury to the patient's face can be reduced.

[0018] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a endotracheal tube fixing device according to the present invention;

[0020] Figure 2 for Figure 1 A magnified view of 'a' in the middle.

[0021] In the diagram: First fixing strap-1; Second fixing strap-2; Third fixing strap-3; Fixing plate-4; Hook and loop fastener face-5; Hook and loop fastener rough face-6; Airbag-7; Air duct-8; Valve-9; Fixing rod-10; Opening-11; First pipe section-12; Second pipe section-13; Rotating ring-14; Limiting ring-15; Protruding ring-16; First adhesive tape-17; Second adhesive tape-18. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0025] In the above description of this utility model, it should be noted that the terms "one side," "the other side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] Furthermore, terms such as "identical" do not imply that components must be absolutely identical; minor differences are permissible. The term "perpendicular" simply means that the positional relationship between components is more perpendicular than "parallel," not that the structure must be perfectly perpendicular; a slight tilt is acceptable.

[0027] Please see Figure 1-2 This utility model provides a technical solution: an endotracheal tube fixing device, including a bite pad, a first fixing band 1, a second fixing band 2, a third fixing band 3, and a fixing part. The first end of the first fixing band 1 is fixedly connected to the left side of the bite pad, the first end of the second fixing band 2 is fixedly connected to the upper side of the bite pad, and the first end of the third fixing band 3 is fixedly connected to the lower side of the bite pad. The fixing part is used to detachably fix the second end of the first fixing band 1 to the second ends of the second fixing band 2 and the third fixing band 3, so that the second end of the first fixing band 1 is positioned between the second end of the second fixing band 2 and the second end of the third fixing band 3 in the vertical direction.

[0028] After endotracheal intubation is completed, one end of the endotracheal tube is inside the patient's body, and the other end is outside the patient's mouth.

[0029] Procedure 1: After endotracheal intubation, place one end of the bite block in the patient's mouth, positioning it between the upper and lower teeth. Position the first fixation strap 1 on the left side of the bite block, the second fixation strap 2 on the upper side, and the third fixation strap 3 on the lower side. Then, secure the portion of the endotracheal tube corresponding to the bite block with tape. Next, pull the second end of the first fixation strap 1 across the left side of the patient's face to the back of the head. Simultaneously, pull the second ends of the second fixation strap 2 and the third fixation strap 3 across the right side of the patient's face to the back of the head. Finally, secure the second ends of the first fixation strap 1 to the second ends of the second fixation strap 2 and the third fixation strap 3 using a fixing mechanism. At this point, the second ends of the second fixation strap 2, the first fixation strap 1, and the third fixation strap 3 are arranged alternately from top to bottom. This completes the fixation of the endotracheal tube, i.e., the endotracheal intubation. The patient's face will be compressed by the first fixation strap 1, the second fixation strap 2, and the third fixation strap 3.

[0030] Step 2: After fixing the endotracheal tube for a period of time, release the fixation between the endotracheal tube and the bite block. Remove the second end of the first fixation strap 1 from the second ends of the second fixation strap 2 and the third fixation strap 3. Then rotate the bite block 180 degrees so that the first fixation strap 1 is on the right side of the bite block, the second fixation strap 2 is on the lower side, and the third fixation strap 3 is on the upper side. Then, re-tie the endotracheal tube to the bite block using tape. Next, pull the second end of the first fixation strap 1 across the right side of the patient's face to the back of the patient's head. Pull the second ends of the second fixation strap 2 and the third fixation strap 3 across the left side of the patient's face to the back of the patient's head. Finally, secure the second end of the first fixation strap 1 to the second ends of the second fixation strap 2 and the third fixation strap 3 using the fixation part. At this point, the second ends of the third fixation strap 3, the first fixation strap 1, and the second fixation strap 2 are arranged alternately from top to bottom. This completes the re-fixation of the endotracheal tube.

[0031] Step 3: After securing the endotracheal tube for a period of time, release the endotracheal tube from the bite block again. Remove the second end of the first fixation strap 1 from the second ends of the second fixation strap 2 and the third fixation strap 3. Then rotate the bite block 180 degrees so that the first fixation strap 1 is on the left side of the bite block, the second fixation strap 2 is on the upper side, and the third fixation strap 3 is on the lower side. Re-secure the endotracheal tube to the bite block using tape. Then pull the second end of the first fixation strap 1 across the left side of the patient's face to the back of the patient's head. Pull the second ends of the second fixation strap 2 and the third fixation strap 3 across the right side of the patient's face to the back of the patient's head. Finally, detachably connect the second end of the first fixation strap 1 to the second ends of the second fixation strap 2 and the third fixation strap 3 using the fixation part. At this point, the second ends of the second fixation strap 2, the first fixation strap 1, and the third fixation strap 3 are arranged alternately from top to bottom. This completes the re-secured endotracheal tube.

[0032] In subsequent use of the endotracheal intubation fixation device described in this utility model, operations two and three are repeated alternately, so that the first fixation strap 1 can be alternately positioned on the left and right sides of the patient's face, and the second fixation strap 2 and the third fixation strap 3 can be alternately positioned on the right and left sides of the patient's face. Since the first end of the first fixation strap 1 is fixedly connected to the left side of the bite pad, the first end of the second fixation strap 2 is fixedly connected to the upper side of the bite pad, and the first end of the third fixation strap 3 is fixedly connected to the lower side of the bite pad, the first end of the first fixation strap 1 is positioned vertically between the first end of the second fixation strap 2 and the first end of the third fixation strap 3, and the second end of the first fixation strap 1 is positioned vertically between the second end of the second fixation strap 2 and the second end of the third fixation strap 3. After each of the above-described operations two or three, the position of the patient's face under pressure from the fixation straps can be changed. Specifically, the position of the patient's face that was pressured by the first fixation strap 1 before operations two or three will not be pressured by the second fixation strap 2 and the third fixation strap 3 after operations two or three. Similarly, the position of the patient's face that was pressured by the second fixation strap 2 and the third fixation strap 3 before operations two or three will not be pressured by the first fixation strap 1 after operations two or three. When using the endotracheal tube fixation device of this invention to fix the endotracheal tube, the possibility of pressure injury to the patient's face can be reduced.

[0033] In this embodiment, the fixing part includes a fixing plate 4. The second end of the first fixing strap 1 is detachably and fixedly connected to the fixing plate 4. The second ends of the second fixing strap 2 and the second ends of the third fixing strap 3 are both fixedly connected to the fixing plate 4. With this structure, the fixing part can detachably and fixedly connect the second end of the first fixing strap 1 to the second fixing strap 2 and the second end of the third fixing strap 3.

[0034] In this embodiment, a hook-and-loop fastener 5 is fixed to the rear side of the fixing plate 4, and a hook-and-loop fastener rough surface 6 is fixed to the inner side of the second end of the first fixing strap 1. By attaching the hook-and-loop fastener rough surface 6 to the hook-and-loop fastener 5, the second end of the first fixing strap 1 can be fixedly connected to the fixing plate 4. By tearing the hook-and-loop fastener rough surface 6 off the hook-and-loop fastener 5, the first end of the first fixing strap 1 can be detached from the fixing plate 4. With this structure, the second end of the first fixing strap 1 can be detachably fixed to the fixing plate 4, and it is convenient to fix and remove the second end of the first fixing strap 1 from the fixing plate 4.

[0035] The hook-and-loop fastener 6 is positioned vertically between the second end of the second fixing strap 2 and the second end of the third fixing strap 3. After the hook-and-loop fastener surface 6 is attached to the hook-and-loop fastener surface 5, the second end of the first fixing strap 1 is positioned vertically between the second end of the second fixing strap 2 and the second end of the third fixing strap 3. After the fixing part secures the second end of the first fixing strap 1 to the second ends of the second fixing strap 2 and the third fixing strap 3, the second end of the first fixing strap 1 is positioned vertically between the second end of the second fixing strap 2 and the second end of the third fixing strap 3.

[0036] In this embodiment, the fixing part further includes a plurality of airbags 7 fixed to the front side of the fixing plate 4. After the endotracheal tube fixing device of the present invention has completed the fixing of the endotracheal tube, the patient's head lying supine presses the fixing part behind the head, and the patient's head can be supported on the airbags 7. The airbags 7 are soft and elastic, which can improve the comfort of using the endotracheal tube fixing device of the present invention.

[0037] In this embodiment, the fixing part further includes multiple air guide tubes 8 and multiple valves 9. The multiple air guide tubes 8 correspond one-to-one with the multiple airbags 7. The first end of the air guide tube 8 passes forward through the fixing plate 4 and connects to the corresponding airbag 7. The multiple valves 9 are correspondingly arranged on the multiple air guide tubes 8.

[0038] The valve 9 on the air delivery tube 8 can be opened, and then an syringe can be used to inflate the corresponding airbag 7 through the second end of the air delivery tube 8. After inflation, the valve 9 can be closed, thus keeping the corresponding airbag 7 inflated. Opening the valve 9 on the air delivery tube 8 allows the gas inside the corresponding airbag 7 to be expelled through the air delivery tube 8.

[0039] An inflated airbag 7 can support the patient's head, while an uninflated airbag 7 cannot. By alternately inflating and deflating the airbags 7, the position of the airbags 7 supporting the patient's head can be alternately changed, thus alternating the position of the patient's head supported by the airbags 7. This allows different parts of the patient's head corresponding to the fixation part to be subjected to intermittent pressure, reducing the possibility of pressure injury to the patient's head at the fixation part.

[0040] In this embodiment, the dental pad includes a round tube and a fixing rod 10. The right side of the round tube is provided with an opening 11 for the air supply tube to enter into the round tube. The fixing rod 10 protrudes forward from the front end of the tube wall of the round tube.

[0041] After placing one end of the bite block into the patient's mouth, the portion of the endotracheal tube corresponding to the position of the round tube can be inserted into the round tube through the opening 11. Then, the portion of the endotracheal tube corresponding to the fixing rod 10 is bound and fixed to the fixing rod 10 with tape, thereby fixing the endotracheal tube to the bite block. After the endotracheal tube is fixed to the bite block, the portion of the endotracheal tube corresponding to the position of the round tube can be housed inside the round tube, so that the patient's lips are only squeezed by the round tube and not by the endotracheal tube, which improves the comfort of using the endotracheal intubation fixation device of this utility model. The fixation of the endotracheal tube to the bite block can be released by tearing off the tape binding the endotracheal tube and the fixing rod 10.

[0042] In this embodiment, the circular tube includes a first tube segment 12 and a second tube segment 13. The second tube segment 13 is concentrically fixed at the front end of the first tube segment 12 and is rotatably connected to the first tube segment 12. The fixing rod 10 extends forward from the front end of the tube wall of the circular tube. The first end of the first fixing band 1, the first end of the second fixing band 2, and the first end of the third fixing band 3 are all fixedly connected to the second tube segment 13.

[0043] When placing one end of the dental pad into the patient's mouth, specifically, the first tube segment 12 is placed into the patient's mouth, and after the first tube segment 12 is placed into the patient's mouth, the first tube segment 12 is placed between the patient's upper and lower teeth.

[0044] Because the second pipe segment 13 is rotatably connected to the first pipe segment 12; the first end of the first fixing strap 1, the first end of the second fixing strap 2, and the first end of the third fixing strap 3 are all fixedly connected to the second pipe segment 13. When performing the above-mentioned operations two and three, it is only necessary to rotate the second pipe segment 13 on the first pipe segment 12 to change the position of the first end of the first fixing strap 1, the first end of the second fixing strap 2, and the first end of the third fixing strap 3.

[0045] When the dental pad is placed in the patient's mouth, the second tube segment 13 is positioned in front of the patient's lips. When the second tube segment 13 is rotated, the patient's lips are not subjected to friction from the second tube segment 13, which further improves the comfort of using the endotracheal intubation fixation device of this utility model.

[0046] In this embodiment, the rear end face of the second pipe segment 13 is recessed to form an annular groove, and the outer side wall of the annular groove is recessed to form an annular limiting groove; the dental pad also includes a rotating ring 14 disposed in the annular groove and cooperating with the annular groove, and a limiting ring 15 disposed in the limiting groove and cooperating with the limiting groove. The rear end of the rotating ring 14 is fixedly connected to the front end of the first pipe segment 12, and the limiting ring 15 is fixedly connected to the rotating ring 14.

[0047] Because the rotating ring 14 is located within and engages with the annular groove, it can rotate within the annular groove. Similarly, because the limiting ring 15 is located within and engages with the limiting groove, it can rotate within the limiting groove. With this structure, the second pipe segment 13 can be rotatably connected to the first pipe segment 12. The cooperation of the limiting ring 15 and the limiting groove prevents the rotating ring 14 from dislodging from the annular groove, thus preventing the second pipe segment 13 from detaching from the first pipe segment 12.

[0048] In this embodiment, the endotracheal tube fixing device of the present invention further includes a convex ring 16 and a connecting part. The convex ring 16 is arranged around the first tube segment 12, and the connecting part is used to fix the convex ring 16 to the first tube segment 12. A notch is formed on the convex ring 16 at the position corresponding to the opening 11.

[0049] When the first tube segment 12 is placed in the patient's mouth, the convex ring 16 is positioned in front of the patient's teeth and is positioned to hold the patient's teeth back. After the first tube segment 12 is placed in the patient's mouth, the limiting effect of the convex ring 16 can reduce the possibility of discomfort caused to the patient due to the first tube segment 12 being inserted too deeply into the patient's oral cavity.

[0050] In this embodiment, the connecting portion includes a first adhesive tape 17 fixed to the rear side of the protruding ring 16 and a second adhesive tape 18 fixed to the front side of the protruding ring 16. When fixing the protruding ring 16 to the first pipe segment 12, the protruding ring 16 is sleeved on the first pipe segment 12, and then the first adhesive tape 17 and the second adhesive tape 18 are attached to the outer surface of the first pipe segment 12. At this time, the protruding ring 16 can be fixed to the first pipe segment 12.

[0051] When fixing the protruding ring 16 to the first tube segment 12, the position of fixing the protruding ring 16 to the first tube segment 12 can be reasonably selected so that when the protruding ring 16 abuts against the patient's teeth, the second tube segment 13 can be located in front of the patient's lips.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A device for fixing an endotracheal tube, characterized in that: The device includes a dental pad, a first fixing band, a second fixing band, a third fixing band, and a fixing part. The first end of the first fixing band is fixedly connected to the left side of the dental pad, the first end of the second fixing band is fixedly connected to the upper side of the dental pad, and the first end of the third fixing band is fixedly connected to the lower side of the dental pad. The fixing part is used to detachably fix the second end of the first fixing band to the second ends of the second and third fixing bands, so that the second end of the first fixing band is positioned between the second ends of the second and third fixing bands in the vertical direction.

2. The endotracheal tube fixing device according to claim 1, characterized in that: The fixing part includes a fixing plate, the second end of the first fixing strap is detachably fixed to the fixing plate, and the second end of the second fixing strap and the second end of the third fixing strap are both fixedly connected to the fixing plate.

3. The endotracheal tube fixing device according to claim 2, characterized in that: The rear side of the fixing plate is provided with a hook and loop fastener, and the inner side of the second end of the first fixing strap is provided with a hook and loop fastener.

4. The endotracheal tube fixing device according to claim 2, characterized in that: The fixing part also includes multiple airbags fixed to the front side of the fixing plate.

5. The endotracheal tube fixing device according to claim 4, characterized in that: The fixing part also includes multiple air guide tubes and multiple valves. Each of the multiple air guide tubes corresponds to one of the multiple airbags. The first end of each air guide tube passes forward through the fixing plate and connects to the corresponding airbag. Each of the multiple valves is correspondingly arranged on the multiple air guide tubes.

6. The endotracheal tube fixing device according to claim 1, characterized in that: The dental pad includes a round tube and a fixing rod. The right side of the round tube has an opening for an air supply tube to enter into the round tube. The fixing rod protrudes forward from the front end of the tube wall.

7. The endotracheal tube fixing device according to claim 6, characterized in that: The circular tube includes a first tube segment and a second tube segment. The second tube segment is concentrically fixed at the front end of the first tube segment and is rotatably connected to the first tube segment. The fixing rod extends forward from the front end of the tube wall of the circular tube. The first end of the first fixing band, the first end of the second fixing band, and the first end of the third fixing band are all fixedly connected to the second tube segment.

8. The endotracheal tube fixing device according to claim 7, characterized in that: The rear end of the second pipe section is recessed to form an annular groove, and the outer side wall of the annular groove is recessed to form an annular limiting groove; the dental pad also includes a rotating ring disposed in the annular groove and cooperating with the annular groove, and a limiting ring disposed in the limiting groove and cooperating with the limiting groove. The rear end of the rotating ring is fixedly connected to the front end of the first pipe section, and the limiting ring is fixedly connected to the rotating ring.

9. The endotracheal tube fixing device according to claim 8, characterized in that: It also includes a convex ring and a connecting part. The convex ring is disposed around the first pipe section, and the connecting part is used to fix the convex ring to the first pipe section. A notch is formed on the convex ring at the position corresponding to the opening.

10. A endotracheal tube fixing device according to claim 9, characterized in that: The connecting part includes a first adhesive tape fixed to the rear side of the convex ring and a second adhesive tape fixed to the front side of the convex ring.