A multi-degree-of-freedom gas shearing sleeve holder

By designing a multi-degree-of-freedom tracheostomy cannula fixator, which utilizes a fixation mechanism and a rotation mechanism, the problem of poor adaptability of existing devices is solved, achieving stable fixation and dynamic adjustment, thereby improving patient comfort and safety.

CN122075864APending Publication Date: 2026-05-26CHENZHOU NO 1 PEOPLES HOSPITAL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHENZHOU NO 1 PEOPLES HOSPITAL
Filing Date
2026-03-25
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing tracheostomy cannula fixation devices are difficult to adapt to different body types, neck shapes, and postoperative swelling changes, resulting in unstable fixation effects, easy displacement of the cannula, affecting ventilation, and increasing the risk of slippage or compression of local tissues.

Method used

A multi-degree-of-freedom tracheostomy cannula fixator is designed, comprising a fixation mechanism and a rotation mechanism. Utilizing components such as plastic plates, movable rods, telescopic rods, and spheres, it achieves stable fixation and dynamic following adjustment of the tracheostomy cannula, adapting to changes in the patient's head rotation and body position.

Benefits of technology

The design of the multi-degree-of-freedom fixator reduces the risk of cannula slippage and compression of local tissues, improves patient comfort and safety, and ensures airway patency.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses a multi-degree-of-freedom tracheostomy cannula fixator in the field of tracheostomy cannula fixation technology, including a fixation frame, a tracheostomy cannula fixator body, a fixation mechanism, and a rotation mechanism. The fixation mechanism includes plastic plates. Plastic plates are symmetrically installed on the top and bottom of the tracheostomy cannula fixator body. Movable rods are movably arranged inside the plastic plates. Circular baffles are installed outside the movable rods. A return spring is installed between the circular baffles and the plastic plates. When the device needs to fix the tracheostomy cannula fixator body, medical personnel pull the grip plate outwards. The grip plate drives the movable rods to move horizontally. After the movable rods are moved to the appropriate position by the pulling force, the extension plate is placed between the two movable rods. The pulling force on the grip plate is released. At this time, the movable rods are reset into the interior of the limiting groove by the elastic force of the return spring. The fixation rod is fixed by the cooperation of the two movable rods, avoiding the difficulty of fixing the tracheostomy cannula fixator body.
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Description

Technical Field

[0001] This invention relates to the field of blast cutter cannula fixation technology, specifically a multi-degree-of-freedom blast cutter cannula fixator. Background Technology

[0002] In clinical medicine, tracheotomy is a common emergency and treatment procedure, widely used for patients with respiratory failure, upper airway obstruction, or those requiring long-term mechanical ventilation. To maintain airway patency, a tracheostomy tube (or simply "tracheostomy tube") is usually inserted into the trachea in the patient's neck. To ensure the stability of the tracheostomy tube during use and to prevent displacement, dislodgement, or even serious complications due to patient movement or external force, an effective fixation device must be used to secure it.

[0003] Most existing fixation devices adopt rigid structures or fixed angle designs, which are difficult to adapt to the influence of different body shapes, neck shapes and postoperative swelling changes, resulting in unstable fixation effects, easy displacement of the tracheostomy cannula, affecting ventilation, and even causing tracheal wall damage. In addition, traditional fixation methods lack adjustment freedom, and cannot dynamically follow the patient's position changes (such as head rotation, supine to lateral position, etc.), increasing the risk of cannula slippage or compression of local tissues, affecting patient comfort and safety. Based on this, the present invention designs a multi-degree-of-freedom tracheostomy cannula fixator to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a multi-degree-of-freedom blast cutter cannula holder to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A multi-degree-of-freedom tracheostomy cannula fixator includes a fixing frame, a tracheostomy cannula body, a fixing mechanism, and a rotating mechanism. The fixing mechanism includes plastic plates. Plastic plates are symmetrically installed on the top and bottom of the tracheostomy cannula body. A movable rod is movably arranged inside the plastic plate. A circular baffle is installed outside the movable rod. A return spring is installed between the circular baffle and the plastic plate. The fixing rod is fixed by the cooperation of the two movable rods, which avoids the tracheostomy cannula body from falling off during use due to difficulty in fixing it.

[0006] The rotating mechanism includes connecting plates, with connecting plates installed on both outer sides of the tracheal fixation device body. A telescopic rod is installed at the end of each connecting plate away from the tracheal fixation device body, and a movable plate is installed on the outside of the telescopic rod. A weak spring is installed between the movable plate and the connecting plate. The combined use of the telescopic rod and the ball simultaneously fixes the tracheal fixation device body and allows for dynamic adjustment of the device body as the patient's head rotates, reducing the risk of cannula slippage or compression of local tissues, and avoiding impact on patient comfort and safety.

[0007] Preferably, the fixation frame is symmetrically equipped with support rods at both the top and bottom. A limiting plate is installed at the top of each support rod, and the limiting plate has both a circular groove and a strip-shaped groove inside. When the patient's head rotates, the sphere moves within the circular groove, allowing the tracheal fixation device to dynamically adjust itself as the patient's head rotates.

[0008] Preferably, a sphere is installed inside the circular groove, a fixed rod is installed at the bottom of the sphere, and several extension plates are installed outside the fixed rod. Both the fixed rod and the extension plates have limiting grooves inside for use with the movable rod. The length of the fixed rod is extended by the extension plates (the fixed rod and the extension plates are nested).

[0009] Preferably, the fixing frame has symmetrically formed grooves inside, and a lifting plate is movably disposed inside the groove. The outside of the lifting plate is connected to a movable plate. When adjusting the trachea fixator body, the lifting plate moves inside the groove, and the lifting plate drives the movable plate to adjust during the movement.

[0010] Preferably, soft rubber bandages are installed on both sides of the fixation frame, and Velcro is installed on the outer side of each soft rubber bandage. After the tracheal fixation device body is fixed, the fixation frame is secured to the patient's neck by the combined use of two soft rubber bandages and two Velcro straps.

[0011] Preferably, the fixation frame has an arc-shaped apex groove on its outer side, and through grooves are symmetrically installed on both the top and bottom of the fixation frame. The arc-shaped apex groove protects the patient and prevents the fixation frame from injuring the patient's neck, while the through grooves limit the movement of the fixation rod.

[0012] Preferably, a grip plate is installed on the side of the movable rod away from the extension plate. Medical personnel grasp the grip plate and pull it outwards, causing the movable rod to move.

[0013] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention achieves stable fixation of the tracheal fixator body through a fixing mechanism. The fixing mechanism includes a plastic plate, a movable rod, and a fixing rod. When it is necessary to use the device to fix the tracheal fixator body, medical personnel pull the grip plate outward. The grip plate drives the movable rod to move horizontally. After the movable rod is moved to a suitable position by the pulling force, the extension plate is placed between the two movable rods. The pulling force on the grip plate is released. At this time, the movable rod is reset into the interior of the limiting groove by the elastic force of the return spring. The fixing rod is fixed by the cooperation of the two movable rods, avoiding the phenomenon of the tracheal fixator body falling off during use due to the difficulty in fixing the tracheal fixator body.

[0014] 2. This invention enables the tracheal fixation device to dynamically follow and adjust itself during the patient's head rotation via a rotating mechanism. The rotating mechanism includes a telescopic rod, a circular groove, and a ball. When the patient's head rotates, the weak spring is compressed during the rotation, and the ball moves inside the circular groove. The combination of the telescopic rod and the ball fixes the tracheal fixation device while simultaneously enabling dynamic adjustment of the device during the patient's head rotation. This reduces the risk of cannula slippage or compression of local tissues, thus avoiding impact on the patient's comfort and safety.

[0015] 3. This invention allows for height adjustment of the tracheal fixation device body through the combined use of the extension plate and the movable plate. When the device is to be used on a patient, the tracheal fixation device body needs to be adjusted according to the patient's required tracheal height. When fixing the tracheal fixation device body, the length of the fixing rod is adjusted by the extension plate. After the fixing rod is adjusted, the position of the connecting plate is adjusted accordingly by the lifting plate, thus avoiding inconvenience in subsequent operations due to the difficulty in adjusting the height of the tracheal fixation device body. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the first three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the second three-dimensional structure of the present invention; Figure 3 This is a schematic diagram of the first internal structure of the present invention; Figure 4 This is a schematic diagram of the second internal structure of the present invention; Figure 5This is an enlarged structural diagram of part A of the present invention; Figure 6 This is an enlarged structural diagram of part B of the present invention.

[0018] The attached diagram lists the components represented by each number as follows: 1. Fixing frame; 21. Soft rubber bandage; 22. Velcro; 23. Arched top groove; 24. Through groove; 31. Support rod; 32. Limiting plate; 33. Circular groove; 34. Strip groove; 4. Tracheal fixation device body; 51. Plastic plate; 52. Movable rod; 53. Circular baffle; 54. Return spring; 55. Grip plate; 56. Fixing rod; 57. Extension plate; 58. Limiting groove; 59. Ball; 61. Groove; 62. Lifting plate; 63. Movable plate; 64. Telescopic rod; 65. Weak spring; 66. Connecting plate. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figure 1-6 The present invention provides a technical solution: A multi-degree-of-freedom tracheostomy cannula fixator includes a fixing frame 1, a tracheostomy cannula body 4, a fixing mechanism, and a rotating mechanism. The fixing mechanism includes a plastic plate 51. Plastic plates 51 are symmetrically installed on the top and bottom of the tracheostomy cannula body 4. A movable rod 52 is movably arranged inside the plastic plate 51. A circular baffle 53 is installed on the outside of the movable rod 52. A return spring 54 is installed between the circular baffle 53 and the plastic plate 51. The fixing rod 56 is fixed by the cooperation of the two movable rods 52, so as to avoid the tracheostomy cannula body 4 from falling off during use due to the difficulty in fixing the tracheostomy cannula body 4.

[0021] The rotating mechanism includes connecting plates 66. Connecting plates 66 are installed on both sides of the tracheal fixation device body 4. A telescopic rod 64 is installed at the end of each connecting plate 66 away from the tracheal fixation device body 4. A movable plate 63 is installed on the outside of the telescopic rod 64. A weak spring 65 is installed between the movable plate 63 and the connecting plate 66. Through the coordinated use of the telescopic rod 64 and the ball 59, the tracheal fixation device body 4 is fixed while simultaneously allowing for dynamic adjustment of the tracheal fixation device body 4 during patient head rotation. This reduces the risk of cannula slippage or compression of local tissues, avoiding impact on patient comfort and safety. Support rods 31 are symmetrically installed at the top and bottom of the fixation frame 1. A limiting plate 32 is installed at the top of the support rods 31, and a circular groove 33 and a strip groove 34 are also provided inside the limiting plate 32. When the patient's head rotates, the ball 59 moves within the circular groove 33, allowing the tracheal fixation device body 4 to dynamically adjust as the patient's head rotates. The ball 59 is installed inside the circular groove 33, and a fixing rod 56 is installed at the bottom of the ball 59. Several extension plates 57 are installed outside the fixing rod 56. Both the fixing rod 56 and the extension plates 57 have limiting grooves 58 that cooperate with the movable rod 52. The length of the fixing rod 56 is extended by the extension plates 57 (the fixing rod 56 and the extension plates 57 are nested). The fixation frame 1 has symmetrically symmetrical grooves 61 inside, and a lifting plate 62 is movably installed inside the groove 61. The outside of the lifting plate 62 is connected to a movable plate 63. When adjusting the tracheal fixation device body 4, the lifting plate 62 moves inside the groove 61, and the lifting plate 62 drives the movable plate 63 to adjust during the movement. Soft rubber bandages 21 are installed on both sides of the fixation frame 1, and Velcro 22 is installed on the outer side of each soft rubber bandage 21. After the tracheal fixation device body 4 is fixed, the fixation frame 1 is fixed to the patient's neck by the cooperation of two soft rubber bandages 21 and two Velcro 22. An arc-shaped groove 23 is provided on the outer side of the fixation frame 1, and through grooves 24 are symmetrically installed on the top and bottom of the fixation frame 1. The arc-shaped groove 23 protects the patient and prevents the fixation frame 1 from injuring the patient's neck. The through grooves 24 limit the movement of the fixation rod 56. A grip plate 55 is installed on the side of the movable rod 52 away from the extension plate 57. When medical staff hold the grip plate 55 and pull it outward, the grip plate 55 moves the movable rod 52.

[0022] When the device needs to be used on a patient, medical staff need to adjust the height of the tracheal fixation device body 4 according to the patient's tracheal position, and extend the length of the fixation rod 56 through the extension plate 57 (the fixation rod 56 and the extension plate 57 are nested). After extending the length of the fixation rod 56 at one end, the fixation rod 56 at the other end needs to be adjusted. After adjusting the lengths of the two fixed rods 56, the fixed rods 56 need to be connected to the movable rods 52. At this time, the medical staff holds the grip plate 55 and pulls it outward. The grip plate 55 drives the movable rod 52 to move. After the movable rod 52 is moved to the appropriate position, the adjusted fixed rod 56 is placed between the two movable rods 52. At this time, the pulling force on the grip plate 55 is released. The movable rod 52 is reset into the interior of the limiting groove 58 by the elastic force of the return spring 54. The fixed rod 56 is fixed by the cooperation of the two movable rods 52 and the limiting groove 58, thereby fixing the tracheal fixator body 4 and avoiding the phenomenon of the tracheal fixator body 4 falling off during use due to the difficulty in fixing the tracheal fixator body 4. After adjusting the length of the fixing rod 56, the position of the tracheal fixation body 4 needs to be adjusted to accommodate the height of the fixing rod 56. When adjusting the tracheal fixation body 4, the lifting plate 62 moves inside the groove 61. During the movement of the lifting plate 62, the moving plate 63 is adjusted. During the adjustment of the moving plate 63, the telescopic rod 64 is adjusted. During the adjustment, the telescopic rod 64 adjusts the tracheal fixation body 4 by cooperating with the connecting plate 66, so as to prevent the tracheal fixation body 4 from being unable to connect to the fixing rod 56 after the length has been adjusted.

[0023] After the tracheal fixation device body 4 is fixed, the fixation frame 1 is fixed to the patient's neck by the cooperation of two soft rubber bandages 21 and two Velcro straps 22. At this time, the trachea is connected through the tracheal fixation device body 4. When the patient's head turns, the weak spring 65 is compressed during the rotation. At this time, the ball 59 moves inside the circular groove 33. The tracheal fixation device body 4 is fixed by the cooperation of the telescopic rod 64 and the ball 59, and the tracheal fixation device body 4 can be dynamically adjusted during the rotation of the patient's head. This reduces the risk of cannula slippage or compression of local tissues and avoids affecting the patient's comfort and safety. In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0024] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A multi-degree-of-freedom blast cutter cannula holder, characterized in that: Includes a fixing frame (1), a tracheal fixation device body (4), a fixing mechanism, and a rotating mechanism; The fixing mechanism includes a plastic plate (51). The top and bottom of the tracheal fixation body (4) are symmetrically equipped with plastic plates (51). A movable rod (52) is movably arranged inside the plastic plate (51). A circular baffle (53) is installed outside the movable rod (52). A return spring (54) is installed between the circular baffle (53) and the plastic plate (51). The rotating mechanism includes a connecting plate (66). The connecting plates (66) are installed on both sides of the tracheal fixation body (4). A telescopic rod (64) is installed on the end of the connecting plate (66) away from the tracheal fixation body (4). A movable plate (63) is installed on the outside of the telescopic rod (64). A weak spring (65) is installed between the movable plate (63) and the connecting plate (66).

2. The multi-degree-of-freedom gas cutting sleeve fixator according to claim 1, characterized in that: The top and bottom of the fixed frame (1) are symmetrically equipped with support rods (31). The top of the support rod (31) is equipped with a limiting plate (32). The limiting plate (32) has a circular groove (33) inside and a strip groove (34) inside.

3. The multi-degree-of-freedom gas cutting sleeve fixator according to claim 1, characterized in that: A sphere (59) is installed inside the circular groove (33). A fixing rod (56) is installed at the bottom of the sphere (59). Several extension plates (57) are installed on the outside of the fixing rod (56). The fixing rod (56) and the extension plates (57) are both provided with limiting grooves (58) that cooperate with the movable rod (52).

4. The multi-degree-of-freedom gas cutting sleeve fixator according to claim 1, characterized in that: The fixed frame (1) has symmetrically provided grooves (61) inside, and a lifting plate (62) is movably arranged inside the groove (61). The outside of the lifting plate (62) is connected to the movable plate (63).

5. A multi-degree-of-freedom gas cutting sleeve fixator according to claim 1, characterized in that: Both sides of the fixing frame (1) are equipped with soft rubber bandages (21), and the outer side of each soft rubber bandage (21) is equipped with Velcro (22).

6. The multi-degree-of-freedom gas cutting sleeve fixator according to claim 1, characterized in that: An arc-shaped groove (23) is provided on the outer side of the fixing frame (1), and through grooves (24) are symmetrically installed on the top and bottom of the fixing frame (1).

7. The multi-degree-of-freedom gas cutting sleeve fixator according to claim 1, characterized in that: A grip plate (55) is installed on the side of the movable rod (52) away from the extension plate (57).