Adjustable endotracheal tube fixation device

By designing an adjustable cannula fixation device, the problem of existing devices being unable to adapt to cannulas of different diameters and the inconvenience of changing dental pads is solved. This enables the fixation and position adjustment of cannulas of different diameters, reducing costs and improving comfort and resource utilization.

CN224937477UActive Publication Date: 2026-11-06AFFILIATED HOSPITAL OF JINING MEDICAL UNIV
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202521487760.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-16
Publication Date
2026-11-06
Estimated Expiration
2035-07-16

AI Technical Summary

Technical Problem

Existing endotracheal tube fixation devices cannot be adapted to tubes of different diameters, and the replacement of bite blocks is inconvenient, increasing medical costs and making it impossible to accurately adjust the position of the tube.

Method used

An adjustable cannula fixation device was designed, including a cannula fixation mechanism that can clamp cannulas of different diameters and adjust their position by sliding through a groove. The dental pad is detachable and features a dynamic fitting strap system and a visualization window.

Benefits of technology

It achieves compatibility with cannulas of different diameters, reduces medical costs, improves the accuracy and comfort of position adjustment, reduces the risk of pressure sores, facilitates the replacement of dental pads, and enhances clinical applicability and resource utilization.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224937477U_ABST
    Figure CN224937477U_ABST
Patent Text Reader

Abstract

This utility model discloses an adjustable endotracheal tube fixing device, belonging to the field of medical device technology. It includes a base plate, with multiple first slots and sliding grooves at both ends of the base plate surface. The base plate is connected to the tube fixing mechanism through the first slots and sliding grooves. A dental pad is detachably connected to the tube fixing mechanism, which can fix tubes of different diameters. This utility model is equipped with a tube fixing mechanism that can clamp and fix tubes of different diameters while sliding along the sliding groove, making it convenient for medical staff to adjust the position of the tube fixing mechanism.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to an adjustable endotracheal tube fixation device. Background Technology

[0002] Endotracheal intubation is a method of inserting a specially designed endotracheal tube through the mouth into the trachea or bronchus. This method aims to establish and maintain airway patency, ensure effective ventilation and oxygenation, and provide an ideal channel for airway suction. It is a core intervention for rescuing patients with respiratory dysfunction. However, successfully inserting the endotracheal tube is only the first step. Ensuring the tube remains stable throughout its use, preventing displacement, dislodgement from the fixation device, and accidental extubation, is crucial. This can take anywhere from hours to weeks. Effective fixation is essential to ensure the stability of the tube's placement and depth. However, bite blocks are inconvenient to replace during intubation, existing fixation devices are not compatible with tubes of different diameters, and the tube cannot be precisely moved after fixation, making it inconvenient to use.

[0003] A patent with publication number CN118807056A discloses a endotracheal tube fixing device, including a fixing strip. The top and bottom of the fixing strip are provided with limiting grooves. A sliding shell is slidably sleeved on the outside of the fixing strip. Arc-shaped limiting posts that are inserted into the limiting grooves are fixedly connected to the inner top and inner bottom walls of the sliding shell. A connecting block is fixedly connected to the bottom of the sliding shell. A sleeve is fixedly connected to the bottom end of the connecting block. A tube clamping groove is provided at the bottom of the sleeve. An endotracheal tube body is sleeved in the tube clamping groove. Two rotating shafts are symmetrically rotatably connected in the sliding shell. A pinching block is fixedly sleeved on the outer wall of each of the two rotating shafts. A positioning tooth is fixedly connected to the end of the pinching block.

[0004] The intubation fixation device disclosed in the above patent cannot be adapted to intubation tubes of different diameters; the bite block cannot be replaced separately, making it inconvenient to use; and replacing the entire fixation device increases medical costs. Therefore, how to provide an adjustable endotracheal intubation fixation device is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] The main objective of this invention is to provide an adjustable endotracheal tube fixation device to solve the aforementioned technical problems. This device is equipped with a tube fixation mechanism that can clamp and fix tubes of different diameters while also sliding along a groove, facilitating adjustments to the position of the fixation mechanism by medical personnel.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An adjustable endotracheal tube fixing device includes a base plate, with multiple first slots at both ends of the base plate surface and sliding grooves at both ends of the base plate. The base plate is connected to a tube fixing mechanism through the first slots and sliding grooves. A dental pad is detachably connected to the tube fixing mechanism, which can fix tubes of different diameters.

[0008] Furthermore, the cannula fixing mechanism includes a fixing plate, with two connecting grooves at both ends of the fixing plate. A connecting shaft is provided in the connecting groove, and the fixing plate is connected to a connecting mechanism through the connecting shaft. The connecting mechanism is connected to a first slot on the base plate. An L-shaped plate is also connected to the bottom end of the fixing plate, and the bottom end of the L-shaped plate is slidably connected to a sliding groove. Buckle assemblies are also provided on both sides of the fixing plate, and U-shaped holes are provided on the fixing plate. The fixing plate is connected to the dental pad through the buckle assemblies and the U-shaped holes.

[0009] A threaded support cylinder, a connecting block, and a hinge frame are fixedly connected to the surface of the fixed plate. The connecting block is provided with a second slot. The fixed plate is hinged to one end of the fixed extrusion block through the hinge frame. The fixed extrusion block is provided with a snap-fit ​​post. The fixed extrusion block is snapped into the second slot on the connecting block through the snap-fit ​​post. A threaded post is threadedly connected to the threaded support cylinder. One end of the threaded post is connected to a movable extrusion block. A bearing is provided at the connection between the threaded post and the movable extrusion block. The other end of the threaded post is connected to a rotating head. The rotating head is also provided with multiple first anti-slip patterns around its circumference. Both the fixed extrusion block and the movable extrusion block are provided with arc-shaped extrusion grooves.

[0010] Furthermore, the connecting mechanism includes a torsion spring and a clamping block. The clamping block is provided with a mounting groove. Both the torsion spring and the clamping block are sleeved on the connecting shaft. The torsion spring is located in the mounting groove. The clamping block is provided with multiple second anti-slip patterns.

[0011] Furthermore, the buckle assembly includes a buckle block and a spring. A groove is provided on the side of the fixing plate, and a buckle block is slidably connected in the groove. One end of the buckle block located in the groove is connected to the spring, and the other end of the spring is connected to the inner wall of the groove.

[0012] Furthermore, the two ends of the base plate are respectively connected to the two ends of the main fixing strap and the auxiliary fixing strap. The main fixing strap is provided with a second pressure-relieving pillow, a second Velcro strap and a second connector. The auxiliary fixing strap is provided with a first pressure-relieving pillow, a first Velcro strap and a first connector. The second Velcro strap is connected to the second connector, and the first Velcro strap is connected to the first connector.

[0013] Furthermore, the top of the mouth pad is provided with a mouth pad mounting plate, the side of the mouth pad is provided with a strip-shaped through hole, the outer wall of the mouth pad is provided with multiple third anti-slip textures, the side of the mouth pad mounting plate is provided with multiple mounting holes, and the mouth pad is connected to the buckle assembly provided on the side of the fixing plate through the mounting holes.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. This utility model is equipped with an intubation fixation mechanism, which can fix various types of endotracheal tubes, improve its wide clinical applicability and popularity, reduce medical costs, and optimize resource utilization. In addition, a bite pad can be detachably connected to the intubation fixation mechanism, making it more convenient to replace the bite pad.

[0016] 2. The intubation tube fixing mechanism of this utility model can clamp and fix the intubation tube while sliding bidirectionally along the slide groove, which makes it easy for medical staff to freely and accurately adjust the position of the endotracheal tube and optimize the patient's airway comfort.

[0017] 3. The dental pad can be disassembled and installed without affecting the use of the intubation tube using a snap-fit ​​assembly and U-shaped hole. This allows medical staff to replace worn or contaminated dental pads individually without replacing the entire fixation device, reducing medical costs and improving resource utilization. The dental pad features a hollow design to prevent tongue root obstruction, and the anti-slip texture on the surface increases occlusal stability.

[0018] 4. This utility model adopts a dynamic fitting strap system, which uses the cooperation of the main fixing strap and the auxiliary fixing strap to wrap around the patient's head and neck. The two ends are fastened and loosened quickly by the first Velcro and the second Velcro, which can adapt to different face shapes and head and tail sizes, increase the strap's firmness, and improve wearing comfort.

[0019] 5. The first and second pressure-reducing pillows are filled with pressure-resistant foam dressings. These pressure-resistant dressings are optimized based on ergonomics and clinical nursing needs, and work in conjunction with the endotracheal tube fixation system. They are made of widened hydrocolloid foam dressing material, which effectively disperses pressure behind the head by widening and thickening the contact area behind the head, significantly reducing the risk of pressure sores.

[0020] 6. Visualization window: A hollowed-out area is reserved in the middle of the base plate to fully expose the patient's teeth and mucous membranes, making it convenient for medical staff to quickly count teeth, examine oral mucosa and perform cleaning operations. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of this utility model.

[0023] Figure 2 This is a schematic diagram of the structure of the back of the bottom plate in this utility model.

[0024] Figure 3 This is a front structural diagram of the present invention.

[0025] Figure 4 This is a top view of the structure of this utility model.

[0026] Figure 5 This is a schematic diagram of the cannula fixation mechanism.

[0027] Figure 6 This is a schematic diagram of the base plate.

[0028] Figure 7 This is a structural diagram of the snap-fit ​​assembly.

[0029] Figure 8 This is a schematic diagram of the clamping block.

[0030] Figure 9 This is a schematic diagram of the connection structure between the clamping block and the fixing plate.

[0031] Figure 10 This is a schematic diagram of the dental splint.

[0032] Among them, 1-base plate, 2-insertion tube fixing mechanism, 2.1-fixing plate, 2.2-connecting shaft, 2.3-threaded support cylinder, 2.4-fixing block, 2.5-hinged frame, 3-main fixing belt, 4-auxiliary fixing belt, 5-first pressure relief pillow, 6-second pressure relief pillow, 7-first Velcro, 8-first connector, 9-second Velcro, 10-second connector, 11-tooth pad, 11.1-mounting hole, 12-threaded column, 13-movable compression block, 14-clamping block, 15-spring, 16-fixed compression block, 17-torsion spring, 18-clamping block. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] like Figures 1-10 As shown, this utility model provides an adjustable endotracheal tube fixing device, including a base plate 1. Both ends of the surface of the base plate 1 are provided with a plurality of first slots and sliding grooves. The base plate 1 is connected to the tube fixing mechanism 2 through the first slots and sliding grooves. The tube fixing mechanism 2 is detachably connected with a dental pad 11. The tube fixing mechanism 2 can fix tubes of different diameters.

[0035] In this embodiment, the endotracheal tube fixing mechanism 2 includes a fixing plate 2.1.1. Two connecting grooves are provided at both ends of the fixing plate 2.1.1. A connecting shaft 2.2 is provided in each connecting groove. The fixing plate 2.1.1 is connected to a connecting mechanism via the connecting shaft 2.2. The connecting mechanism is connected to a first slot on the base plate 1. An L-shaped plate is also connected to the bottom end of the fixing plate 2.1.1. The bottom end of the L-shaped plate is slidably connected to a sliding groove. Buckling assemblies are also provided on both sides of the fixing plate 2.1. A U-shaped hole is provided on the fixing plate 2.1. The fixing plate 2.1 is connected to the bite pad 11 via the buckling assembly and the U-shaped hole. The U-shaped hole facilitates subsequent replacement of the bite pad 11, allowing replacement without removing the endotracheal tube. The L-shaped plate, in conjunction with the endotracheal tube fixing mechanism 2, can move along the sliding groove when the connecting mechanism is loosened.

[0036] A threaded support cylinder 2.3, a connecting block 2.4, and a hinge frame 2.5 are fixedly connected to the surface of the fixed plate 2.1. The connecting block 2.4 is provided with a second slot. The fixed plate 2.1 is hinged to one end of the fixed pressing block 16 through the hinge frame 2.5. The fixed pressing block 16 is provided with a snap-fit ​​post. The fixed pressing block 16 snaps into the second slot on the connecting block 2.4 through the snap-fit ​​post. A threaded post 12 is internally threaded to the threaded support cylinder 2.3. One end of the threaded post 12 is connected to a movable pressing block 13. A bearing is provided at the connection between the threaded post 12 and the movable pressing block 13. The other end of the threaded post 12 is connected to a rotating head. The rotating head is also provided with multiple first anti-slip grooves around its circumference. Both the fixed pressing block 16 and the movable pressing block 13 are provided with arc-shaped pressing grooves. The movable pressing block 13 and the fixed pressing block 16 can fix insertion tubes of different diameters.

[0037] In this embodiment, the connecting mechanism includes a torsion spring 17 and a clamping block 18. The clamping block 18 is provided with a mounting groove. Both the torsion spring 17 and the clamping block 18 are sleeved on the connecting shaft 2.2. The torsion spring 17 is located in the mounting groove. The clamping block 18 is provided with multiple second anti-slip textures. The torsion spring 17 can clamp and release the clamping block 18, thereby fixing and releasing the entire insertion tube fixing mechanism 2 and facilitating the movement of the insertion tube fixing mechanism 2.

[0038] In this embodiment, the buckle assembly includes a locking block 14 and a spring 15. A groove is provided on the side of the fixing plate 2.1, and the locking block 14 is slidably connected within the groove. One end of the locking block 14 within the groove is connected to the spring 15, and the other end of the spring 15 is connected to the inner wall of the groove. The locking block 14 can cooperate with the spring 15 to achieve compression and extension, facilitating the disassembly and fixation of the dental pad 11. Furthermore, the dental pad 11 has a cylindrical structure and is made of integrated quick-release silicone. The quick-release structure between the integrated silicone dental pad and the fixing band allows medical staff to easily replace worn or contaminated dental pads individually without replacing the entire fixing device, reducing medical costs and improving resource utilization. The hollow design prevents tongue root obstruction, and the surface anti-slip texture increases occlusal stability.

[0039] In this embodiment, the two ends of the base plate 1 are respectively connected to the two ends of the main fixing strap 3 and the auxiliary fixing strap 4. The main fixing strap 3 is provided with a second pressure-reducing pillow 6, a second Velcro 9, and a second connector 10. The auxiliary fixing strap 4 is provided with a first pressure-reducing pillow 5, a first Velcro 7, and a first connector 8. The second Velcro 9 is connected to the second connector 10, and the first Velcro 7 is connected to the first connector 8. The first Velcro 7 and the second Velcro 9 can fix the entire intubation fixation device, and can also adapt to different face shapes and head sizes, increasing the strength of the straps and improving wearing comfort. The main fixing strap 3 and the auxiliary fixing strap 4 can ensure the stability of the intubation fixation device. The first pressure-reducing pillow 5 and the second pressure-reducing pillow 6 are both made of anti-pressure ulcer foam dressing. Based on ergonomics and clinical nursing needs, they are optimized and work together with the endotracheal intubation fixation component. They use a widened hydrocolloid foam dressing material, which effectively disperses pressure on the back of the head by widening and thickening the contact area behind the head, significantly reducing the risk of pressure ulcers.

[0040] In this embodiment, the top of the dental pad 11 is provided with a dental pad mounting plate, the side of the dental pad 11 is provided with a strip-shaped through hole, the outer wall of the dental pad 11 is provided with a plurality of third anti-slip textures, the side of the dental pad mounting plate is provided with a plurality of mounting holes 11.1, and the dental pad 11 is connected to the buckle assembly provided on the side of the fixing plate 2.1 through the mounting holes 11.1; the strip-shaped through hole on the side of the dental pad 11 can remove the cannula from the dental pad 11, which is convenient for subsequent replacement of the dental pad 11; the pressing of the locking block 14 can realize the quick disassembly and replacement of the dental pad 11, making it more convenient.

[0041] Working principle: The first Velcro 7 and the second Velcro 9 are used to fix the entire intubation fixation device to the patient. The dental pad 11 is installed on the U-shaped hole of the fixation plate 2.1. The two sides are pressed by the locking blocks 14 so that the locking blocks 14 are locked into the mounting holes 11.1 of the dental pad 11. The rotating head rotates the threaded column 12 to drive the movable squeezing block 13 to move and cooperate with the fixed squeezing block 16 to fix the intubation tubes of different diameters. The two sides are pinched by the clamping blocks 18 to reduce the clamping degree of the entire intubation fixation mechanism 2 on the first slot on the base plate 1. Then, the entire intubation fixation mechanism 2 is moved by the sliding groove to realize the movement of the intubation fixation device.

[0042] When replacing the dental pad 11, remove the cannula from the strip-shaped through hole on the side of the dental pad 11, press the clip 14 to remove the dental pad 11 for replacement.

[0043] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0044] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An adjustable endotracheal tube fixation device, characterized in that, Includes a base plate (1), with multiple first slots provided at both ends of the surface of the base plate (1) and sliding grooves provided at both ends of the base plate (1). The base plate (1) is connected to the insertion tube fixing mechanism (2) through the first slots and sliding grooves. The insertion tube fixing mechanism (2) is detachably connected to a dental pad (11). The insertion tube fixing mechanism (2) can fix insertion tubes of different diameters.

2. The adjustable endotracheal tube fixing device according to claim 1, characterized in that, The cannula fixing mechanism (2) includes a fixing plate (2.1). Two connecting grooves are provided at both ends of the fixing plate (2.1). A connecting shaft (2.2) is provided in the connecting groove. The fixing plate (2.1) is connected to the connecting mechanism through the connecting shaft (2.2). The connecting mechanism is connected to the first slot on the base plate (1). An L-shaped plate is also connected to the bottom end of the fixing plate (2.1). The bottom end of the L-shaped plate is slidably connected to the sliding groove. Buckle assemblies are also provided on both sides of the fixing plate (2.1). A U-shaped hole is provided on the fixing plate (2.1). The fixing plate (2.1) is connected to the dental pad (11) through the buckle assembly and the U-shaped hole. A threaded support cylinder (2.3), a connecting block (2.4), and a hinge frame (2.5) are fixedly connected to the surface of the fixed plate (2.1). The connecting block (2.4) is provided with a second slot. The fixed plate (2.1) is hinged to one end of the fixed extrusion block (16) through the hinge frame (2.5). The fixed extrusion block (16) is provided with a snap-fit ​​post. The fixed extrusion block (16) is snapped into the second slot on the connecting block (2.4) through the snap-fit ​​post. A threaded column (12) is threadedly connected to the threaded support cylinder (2.3). One end of the threaded column (12) is connected to a movable extrusion block (13). A bearing is provided at the connection between the threaded column (12) and the movable extrusion block (13). The other end of the threaded column (12) is connected to a rotating head. The rotating head is also provided with multiple first anti-slip patterns around its circumference. Both the fixed extrusion block (16) and the movable extrusion block (13) are provided with arc-shaped extrusion grooves.

3. The adjustable endotracheal tube fixing device according to claim 2, characterized in that, The connecting mechanism includes a torsion spring (17) and a clamping block (18). The clamping block (18) is provided with a mounting groove. The torsion spring (17) and the clamping block (18) are both sleeved on the connecting shaft (2.2). The torsion spring (17) is located in the mounting groove. The clamping block (18) is provided with a plurality of second anti-slip textures.

4. The adjustable endotracheal tube fixing device according to claim 2, characterized in that, The buckle assembly includes a buckle block (14) and a spring (15). The side of the fixing plate (2.1) is provided with a groove. The buckle block (14) is slidably connected in the groove. One end of the buckle block (14) located in the groove is connected to the spring (15), and the other end of the spring (15) is connected to the inner wall of the groove.

5. An adjustable endotracheal tube fixation device according to claim 1, characterized in that, The bottom plate (1) is connected to the two ends of the main fixing strap (3) and the auxiliary fixing strap (4) respectively. The main fixing strap (3) is provided with a second pressure relief pillow (6), a second Velcro (9) and a second connector (10). The auxiliary fixing strap (4) is provided with a first pressure relief pillow (5), a first Velcro (7) and a first connector (8). The second Velcro (9) is connected to the second connector (10), and the first Velcro (7) is connected to the first connector (8).

6. An adjustable endotracheal tube fixing device according to claim 2, characterized in that, The top of the dental pad (11) is provided with a dental pad mounting plate, the side of the dental pad (11) is provided with a strip-shaped through hole, the outer wall of the dental pad (11) is provided with a plurality of third anti-slip textures, the side of the dental pad mounting plate is provided with a plurality of mounting holes (11.1), and the dental pad (11) is connected to the buckle assembly provided on the side of the fixing plate (2.1) through the mounting holes (11.1).

Citation Information

Patent Citations

  • Trachea cannula fixing device

    CN118807056A