Anti-falling tracheal cannula based on severe patient

Abstract

The utility model belongs to the tracheal intubation field, concretely relates to a prevent shedding type tracheal intubation based on critical patient, solved the problem existing in the background art, including the catheter, the surface of catheter is provided with a detachable protection cylinder, the protection cylinder can be fixed in the arbitrary position of catheter, the outside of protection cylinder is provided with a detachable restraint, the utility model discloses a protection cylinder is formed by protection shell combination, and the elastic self -adaptation adjustment according to the diameter of catheter is realized in cooperation with adjusting plate, adjusting spring, first articulated link, second articulated link, the catheter is fixed through the bonding surface, can firmly fix the protection cylinder in the arbitrary position of catheter, the protection shell rear half adopts the half conical structure and sets up the elastic pad, and articulated plate is equipped with the protection pad, and the flexible adhesion patient mouth and face is dispersed, and the stress is reduced, and the friction and pressure sore risk are reduced.

Description

Technical Field

[0001] This utility model belongs to the field of endotracheal intubation, specifically relating to an anti-dislodgement endotracheal intubation tube for critically ill patients. Background Technology

[0002] In intensive care, endotracheal intubation is a core device for maintaining airway patency and implementing mechanical ventilation. Critically ill patients often present with altered consciousness, restlessness, severe coughing, and frequent changes in position. Conventional endotracheal tube fixation methods generally suffer from insufficient stability, easy dislodgement, poor comfort, and low fit. Traditional fixation methods often use adhesive tape, simple fixation frames, or ordinary headbands, resulting in dispersed restraint force that cannot effectively resist patient agitation and traction, easily leading to tube displacement or slippage, causing ventilation interruption and endangering the patient's life.

[0003] Existing fixation devices mainly use physical clamping, such as the anti-dislodgement endotracheal tube fixator disclosed in patent application CN201921227076.2. When in use, if the clamping force is too large, the tube will be crushed; if the clamping force is too small, the fixation force will be insufficient. Moreover, the tube cannot adapt to displacement after fixation, which can easily affect medical staff's oral cleaning operations on patients, and can easily cause pressure sores over time, increasing the difficulty of nursing care and the risk of nosocomial infection. Utility Model Content

[0004] The purpose of this utility model is to overcome the problems existing in the background technology, thereby realizing a non-dislodgement endotracheal intubation method for critically ill patients.

[0005] To achieve the above-mentioned utility model objectives, the technical solution of this utility model is: a tracheal intubation tube for critically ill patients to prevent dislodgement, including a catheter, a detachable protective sleeve on the surface of the catheter, the protective sleeve being able to be fixed at any position on the catheter, and a detachable restraint member on the outside of the protective sleeve; The protective cylinder includes two corresponding protective shells. The rear half of the protective shell is in the shape of a semi-conical structure, and the surface of the semi-conical structure is provided with an elastic pad. Adjustment plates are respectively installed on the inner side of the protective shell, and the two adjustment plates are respectively provided with adhesive surfaces on their corresponding sides.

[0006] Preferably, a first hinge rod and a second hinge rod are provided between the outer side of the adjusting plate and the protective shell, which are hinged to each other at the middle. One end of the first hinge rod and the second hinge rod are respectively hinged to the inner wall of the corresponding adjusting plate and the protective shell. The other end of the first hinge rod and the second hinge rod are respectively hinged to a mounting slider. The adjusting plate and the inner wall of the protective shell corresponding to the mounting slider are respectively provided with mounting grooves. The mounting slider is slidably connected to the mounting grooves. One end of the mounting slider is fixedly connected to an adjusting spring, and the other end of the adjusting spring is fixedly connected to the inner wall of the mounting groove.

[0007] Preferably, one end of each of the two adjustment plates is V-shaped, and the adhesive surface is disposed on the surface of the V-shaped structure.

[0008] Preferably, the surface of the elastic pad is uniformly provided with a plurality of annular protrusions.

[0009] Preferably, one of the protective shells has a connecting end with a docking hole on each side, and the other protective shell has a connecting rod on each side that can dock with the docking hole. The two protective shells are tightly combined by docking the docking hole and the connecting rod. The outer side of each protective shell has an arc-shaped groove coaxially formed. A first fixing band and a second fixing band that can be bonded to each other are fixedly connected in the arc-shaped grooves on the surfaces of the two protective shells.

[0010] Preferably, the restraint component includes a mounting frame, a movable frame slidably connected to the inner side of the mounting frame, hinge plates hinged to both ends of the mounting frame, and a first restraint strap and a second restraint strap fixedly connected to the outer end of the hinge plates; the protective cylinder is detachably connected to the movable frame, the front and back sides of the first restraint strap are respectively fixedly connected with Velcro that can be connected to each other, and the other end of the second restraint strap is fixedly connected with a connecting buckle that can accommodate the first restraint strap to pass through.

[0011] Preferably, the surface of the movable frame has a through hole capable of accommodating the protective cylinder, and limit blocks are respectively provided on the corresponding two sides of the movable frame. The limit blocks engage with the arc-shaped groove to prevent the protective cylinder from disengaging from the through hole. Movable rods are fixedly connected to the two sides of the outer end of the limit blocks, and handles are fixedly connected to the outer ends of the movable rods. Spring baffles are fixedly connected to the surface of the movable rods, and spring grooves with open ends are respectively provided on the inner side of the movable frame corresponding to the movable rods. The spring baffles slide in the spring grooves, and a return spring is provided inside the spring grooves, with the return spring located outside the spring baffles.

[0012] Preferably, the surface of the hinge plate is provided with mounting holes, and protective pads are fixedly connected to the inner side of the mounting holes respectively.

[0013] Compared with the prior art, the anti-dislodgement endotracheal intubation device of this invention for critically ill patients has at least the following beneficial effects: 1. This utility model forms a protective cylinder by assembling a protective shell. With the help of an adjusting plate, adjusting spring, first hinge rod, and second hinge rod, it can achieve elastic adaptive adjustment according to the diameter of the catheter. By fixing the catheter with an adhesive surface, the protective cylinder can be firmly fixed in any position of the catheter, effectively resisting pulling and shaking, significantly reducing the risk of catheter dislodgement and displacement, and ensuring ventilation safety.

[0014] 2. The rear half of the protective shell adopts a semi-conical structure and is equipped with an elastic pad. The hinge plate is equipped with a protective pad, which flexibly fits the patient's mouth and face, disperses pressure stress, reduces friction and the risk of pressure sores, and the raised surface improves breathability, significantly improving long-term wearing comfort and safety.

[0015] 3. The overall structure provides external support and buffer protection, which can prevent the catheter from being deformed by external force, ensure the ventilation chamber is unobstructed, and adapt to different diameter endotracheal tubes and different insertion depths, greatly improving the device's compatibility and clinical applicability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the installation structure of the protective cylinder and the conduit of this utility model; Figure 3 This is a first schematic diagram of the adjustment plate installation structure of this utility model; Figure 4 This is a second schematic diagram of the adjustment plate mounting structure of this utility model; Figure 5 This is a third schematic diagram of the adjustment plate mounting structure of this utility model; Figure 6 This is the fourth schematic diagram of the adjustment plate mounting structure of this utility model; Figure 7 This is a schematic diagram of the installation structure of the limiting block of this utility model; Figure 8 This is the utility model Figure 7 A magnified schematic diagram of part J.

[0017] In the diagram: 1-Conduit; 2-Mounting frame; 3-Hinge plate; 4-Protective pad; 5-First restraint strap; 6-Connecting buckle; 7-Protective shell; 8-Elastic pad; 9-First fixing strap; 10-Second fixing strap; 11-Adjusting plate; 12-Mating hole; 13-Mating rod; 14-First hinge rod; 15-Second hinge rod; 16-Mounting slider; 17-Adjusting spring; 18-Adhesive surface; 19-Moving frame; 20-Limiting block; 21-Arc groove; 22-Handle; 23-Moving rod; 24-Spring baffle; 25-Reset spring; 26-Second restraint strap. Detailed Implementation

[0018] The following description, in conjunction with the accompanying drawings and specific embodiments, provides a more detailed account of an anti-dislodgement endotracheal tube for critically ill patients based on this invention.

[0019] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. 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.

[0020] This embodiment discloses a type of endotracheal intubation designed to prevent dislodgement in critically ill patients, such as... Figures 1-8 As shown, the device includes a catheter 1, the surface of which is provided with a detachable protective sleeve. The protective sleeve can be fixed at any position of the catheter 1 and its installation position can be flexibly adjusted according to the patient's insertion depth and facial contours to adapt to critically ill patients of different body types and different insertion needs. A detachable restraint is provided on the outside of the protective sleeve. The restraint is worn around the patient's head and stably restricts the protective sleeve to the position of the patient's mouth, forming a rigid limit from the outside to prevent the protective sleeve from shifting or falling off due to the patient's agitation, coughing, or changes in body position, thereby indirectly preventing the catheter 1 from being pulled out.

[0021] The protective tube includes two corresponding protective shells 7, which together form a complete cylindrical structure that wraps around the outside of the catheter 1, serving to isolate, support, and position the catheter. The rear half of the protective shell 7 has a semi-conical structure that conforms to the contours of the patient's mouth and lips, dispersing oral pressure and preventing local pressure sores. It also forms an outward support surface to reduce direct impact of external objects on the catheter. An elastic pad 8 is provided on the surface of the semi-conical structure. The elastic pad 8 is made of soft medical elastic material to improve wearing comfort and prevent the hard protective shell 7 from directly rubbing against and compressing the patient's oral skin.

[0022] Adjustment plates 11 are respectively installed on the inner side of the protective shell 7. The adjustment plates 11 can be elastically stretched and adjusted in angle inside the protective shell 7 to adapt to endotracheal tubes of different diameters and positions, ensuring tight clamping without damaging the catheter 1. Adhesive surfaces 18 are respectively provided on the corresponding sides of the two adjustment plates 11. The adhesive surfaces 18 are made of medical low-sensitivity adhesive, which is gently bonded to the outer wall of the catheter 1, further improving the bonding stability between the protective shell and the catheter 1 and preventing relative slippage.

[0023] A first hinge rod 14 and a second hinge rod 15 are provided between the outer side of the adjusting plate 11 and the protective shell 7, and are hinged to each other in the middle. The first hinge rod 14 and the second hinge rod 15 form a cross-hinged scissor telescopic structure, which can be expanded and retracted synchronously, so as to drive the adjusting plate 11 to move smoothly closer to or away from the guide tube 1 and ensure uniform clamping force. One end of the first hinge rod 14 and the second hinge rod 15 are respectively hinged to the inner wall of the corresponding adjusting plate 11 and the protective shell 7, and the other end is respectively hinged to the mounting slider 16. The inner wall of the adjusting plate 11 and the protective shell 7 corresponding to the mounting slider 16 are respectively provided with mounting grooves. The mounting slider 16 can slide linearly along the mounting groove, providing guidance for the movement of the first hinge rod 14 and the second hinge rod 15 and avoiding jamming or deviation.

[0024] One end of the mounting slider 16 is fixedly connected to an adjusting spring 17, and the other end of the adjusting spring 17 is fixedly connected to the inner wall of the mounting groove. The adjusting spring 17 always provides an inward elastic thrust, driving the mounting slider 16 to slide inward, causing the hinge rod to retract, so that the adjusting plate 11 automatically clamps the guide tube 1. No manual continuous pressure is required, the installation is convenient and the clamping force is stable, and it can adapt to different guide tube diameters within a certain range.

[0025] The two adjusting plates 11 have a V-shaped structure at one end. The V-shaped structure can automatically center the catheter 1, ensuring that the catheter is in the center of the protective tube and the force is symmetrical, avoiding unilateral compression that could cause the catheter to deform or obstruct ventilation. The adhesive surface 18 is set on the surface of the V-shaped structure, increasing the contact area with the catheter 1 and improving the adhesion stability. At the same time, the V-shaped structure does not block the ventilation cavity of the catheter and does not affect the normal ventilation function.

[0026] The surface of the elastic pad 8 is evenly provided with multiple annular protrusions. The protrusions further increase the friction between the elastic pad 8 and the patient's skin around the mouth, improving the anti-slip effect. At the same time, the protrusions form tiny breathable gaps, improving the breathability of the local skin and reducing skin damage caused by stuffiness and moisture. It is especially suitable for critically ill patients who wear it for a long time.

[0027] One of the protective shells 7 has docking holes 12 on both sides of the connecting end inside, and the other protective shell 7 has docking rods 13 on both sides of the connecting end inside, which can dock with the docking holes 12. The docking rods 13 and the docking holes 12 are interference fit, and automatically lock together when they are aligned, so as to realize the quick and tight combination of the two protective shells 7, which is convenient for disassembly and assembly, and easy for disinfection, replacement and adjustment of position. The outer side of each of the protective shells 7 has an arc-shaped groove 21 coaxially. The arc-shaped grooves 21 on the surface of the two protective shells 7 are respectively fixedly connected to a first fixing band 9 and a second fixing band 10 that can be bonded to each other. The first fixing band 9 and the second fixing band 10 are bonded to each other to further strengthen the alignment of the two protective shells 7, prevent accidental opening during use, and ensure the overall structural stability of the protective cylinder.

[0028] The restraint component includes a mounting frame 2, a movable frame 19 slidably connected to the inner side of the mounting frame 2, a hinge plate 3 hinged to both ends of the mounting frame 2, and a first restraint strap 5 and a second restraint strap 26 fixedly connected to the outer end of the hinge plate 3. The movable frame 19 can slide within a small range within the mounting frame 2, allowing the protective cylinder to slide within a small range, facilitating medical staff to clean the patient's oral cavity and effectively preventing excessive traction of the restraint component. The hinge plate 3 can rotate at a small angle to conform to the patient's temporal and facial contours, improving the fit and comfort of wearing the device.

[0029] The protective tube and the movable frame 19 are detachably connected, allowing for quick assembly and disassembly of the protective tube according to treatment needs without affecting intubation operations and nursing care; the first restraint strap 5 has Velcro fasteners fixedly connected to both sides, allowing for free adjustment of the wrapping length to suit patients with different head circumferences; the other end of the second restraint strap 26 is fixedly connected to a connecting buckle 6 that can accommodate the first restraint strap 5 to pass through, and the first restraint strap 5 is reversed and glued after passing through the connecting buckle 6, making it firmly fixed and not easy to loosen, and quick and efficient to put on and take off.

[0030] The surface of the movable frame 19 is provided with a through hole that can accommodate the protective cylinder. The protective cylinder passes through the through hole to be assembled with the movable frame 19. Limiting blocks 20 are respectively provided on the corresponding two sides of the movable frame 19. The limiting blocks 20 engage with the arc groove 21 to form a ring-shaped locking structure, which effectively prevents the protective cylinder from detaching from the through hole along the axial direction, ensuring that the protective cylinder and the restraint are stably connected and will not separate due to the patient's movement.

[0031] Movable rods 23 are fixedly connected to both sides of the outer end of the limiting block 20. Handles 22 are fixedly connected to the outer ends of the movable rods 23. Medical staff can squeeze the handles 22 to move the movable rods 23 and the limiting block 20 outward, thereby releasing the engagement between the limiting block 20 and the arc groove 21 and quickly disassembling the protective cylinder. The operation is simple and convenient.

[0032] Spring baffles 24 are fixedly connected to the surface of the movable rod 23. Spring grooves with openings at both ends are respectively opened on the inner side of the movable frame 19 corresponding to the movable rod 23. The spring baffles 24 are slidably fitted in the spring grooves. A return spring 25 is provided inside the spring grooves. The return spring 25 is located outside the spring baffles 24. The return spring 25 always pushes the spring baffles 24 and the movable rod 23 to move inward, so that the limiting block 20 automatically engages with the arc-shaped groove 21, realizing self-locking. No additional fixing is required, and it is safe and reliable to use.

[0033] The surface of the hinge plate 3 is provided with mounting holes, and protective pads 4 are fixedly connected to the inner side of the mounting holes respectively. The protective pads 4 are made of soft and breathable medical material and are applied to the patient's face and around the ears to disperse the tension of the restraint strap, avoid local pressure that could lead to poor blood circulation, and at the same time improve wearing comfort and reduce the discomfort of wearing for a long time for critically ill patients.

[0034] This invention significantly improves the stability and safety of endotracheal intubation in critically ill patients through the coordinated operation of the catheter 1, protective sleeve, and restraint components. The protective shell 7, through the mating rod 13 and mating hole 12, forms a complete protective structure. Combined with the first fixing strap 9 and the second fixing strap 10, it stably wraps around and positions the catheter 1. The adjusting spring 17 drives the mounting slider 16, the first hinge rod 14, and the second hinge rod 15, which in turn drive the adjusting plate 11 to elastically clamp the catheter 1. The adhesive surface 18 enhances the fit, ensuring the protective sleeve is firmly installed at any position on the catheter 1 without slipping or shifting. The limiting block 20, under the action of the return spring 25, engages with the arc-shaped groove 21, causing the protective sleeve to self-lock to the moving frame 19. The mounting frame 2, hinge plate 3, and the first restraint strap 5 and connecting buckle 6 are fixed to the patient's head. The protective pad 4 and elastic pad 8 buffer pressure and improve wearing comfort. The overall structure effectively mitigates the risk of tube dislodgement caused by patient agitation, changes in body position, and coughing, limiting catheter displacement and dislodgement. It also protects the perioral skin and reduces the probability of pressure injury, providing continuous, stable, and safe airway support for critically ill patients undergoing mechanical ventilation. This significantly improves clinical reliability and patient tolerability. In use, the protective sleeve consists of two protective shells 7 that are aligned with the docking hole 12 via the docking rod 13 and wrapped around the outside of the conduit 1. It is further secured by the first fixing strap 9 and the second fixing strap 10, thus completing the initial fixation of the protective sleeve and the conduit 1.

[0035] Insert the protective cylinder into the through hole of the movable frame 19. The reset spring 25 pushes the spring baffle 24, the movable rod 23 and the limiting block 20 to be inserted into the arc-shaped groove 21 of the protective shell 7, so as to realize the self-locking connection between the protective cylinder and the restraint.

[0036] Place the mounting frame 2 in front of the patient's mouth, the hinge plate 3 adapts to fit the face, the first restraint strap 5 passes through the connecting buckle 6 and is fixed to the patient's head in the opposite direction, and the protective pad 4 disperses pressure and improves comfort.

[0037] When the patient becomes agitated, coughs, or changes position, the protective shell 7 and elastic pad 8 support the periphery of the mouth and buffer external forces; the restraints limit the overall position to prevent the protective tube from shifting, and the adjusting plate tightly clamps the tube, preventing the endotracheal tube from being pulled, displaced, or detached from the source, thus ensuring ventilation safety.

[0038] It should be noted that, in actual implementation, the structure depicted in the accompanying drawings is not a fixed or unchanging embodiment. The components of the embodiments of this invention described and shown in these drawings can typically be arranged and designed in various different configurations. Furthermore, the accompanying drawings and abstract drawings are merely illustrative and do not represent the specific structure or actual quantity in a concrete implementation.

[0039] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains. The use of terms such as "a" or "an" in this specification and claims does not necessarily indicate a limitation on quantity. Terms such as "comprising" or "including" mean that the element or component preceding the word encompasses the element or component listed following the word and its equivalents, without excluding other elements or components. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0040] The exemplary embodiments of the present invention have been described in detail above with reference to preferred embodiments. However, those skilled in the art will understand that various modifications and alterations can be made to the above specific embodiments without departing from the concept of the present invention, and various combinations can be made to the various technical features and structures proposed by the present invention without exceeding the protection scope of the present invention.

Claims

1. A fall-preventing tracheal cannula for a critical patient, comprising a catheter (1), characterized in that, The surface of the conduit (1) is provided with a detachable protective sleeve, which can be fixed at any position of the conduit (1), and a detachable restraint is provided on the outside of the protective sleeve; The protective cylinder includes two corresponding protective shells (7). The rear half of the protective shell (7) is a semi-conical structure, and the surface of the semi-conical structure is provided with an elastic pad (8). Adjustment plates (11) are respectively installed on the inner side of the protective shell (7), and the two adjustment plates (11) are respectively provided with an adhesive surface (18) on their corresponding sides.

2. The fall-preventing tracheal cannula based on a critical patient according to claim 1, characterized in that: A first hinge rod (14) and a second hinge rod (15) are provided between the outer side of the adjusting plate (11) and the protective shell (7) and are hinged to each other in the middle. One end of the first hinge rod (14) and the second hinge rod (15) are respectively hinged to the inner wall of the corresponding adjusting plate (11) and the protective shell (7). The other end of the first hinge rod (14) and the second hinge rod (15) are respectively hinged to the mounting slider (16). The inner wall of the adjusting plate (11) and the protective shell (7) corresponding to the mounting slider (16) are respectively provided with mounting grooves. The mounting slider (16) is slidably connected to the mounting groove. One end of the mounting slider (16) is fixedly connected to the adjusting spring (17), and the other end of the adjusting spring (17) is fixedly connected to the inner wall of the mounting groove.

3. The fall-preventing tracheal cannula based on a critical patient according to claim 1, characterized in that: The two adjustment plates (11) have a V-shaped structure at one end, and the adhesive surface (18) is provided on the surface of the V-shaped structure.

4. The fall-preventing tracheal cannula based on a critical patient according to claim 1, characterized by: The surface of the elastic pad (8) is uniformly provided with multiple annular protrusions.

5. The fall-preventing tracheal cannula based on a critical patient according to claim 1, characterized in that: A connecting end of one of the protective shells (7) is provided with a docking hole (12) on both sides, and a connecting rod (13) that can dock with the docking hole (12) is provided on both sides of the connecting end of the other protective shell (7). The two protective shells (7) are tightly combined by docking the docking hole (12) and the connecting rod (13). An arc groove (21) is provided on the outer side of the protective shell (7) on the same axis. A first fixing band (9) and a second fixing band (10) that can be bonded to each other are fixedly connected in the arc groove (21) on the surface of the two protective shells (7).

6. The fall-preventing tracheal cannula based on a critical patient according to claim 5, characterized in that: The restraint component includes a mounting frame (2), a movable frame (19) slidably connected to the inner side of the mounting frame (2), a hinge plate (3) hinged to both ends of the mounting frame (2), and a first restraint strap (5) and a second restraint strap (26) fixedly connected to the outer end of the hinge plate (3); the protective tube is detachably connected to the movable frame (19), the front and back sides of the first restraint strap (5) are respectively fixedly connected with Velcro that can be connected to each other, and the other end of the second restraint strap (26) is fixedly connected with a connecting buckle (6) that can accommodate the first restraint strap (5) to pass through.

7. The fall-preventing tracheal cannula based on a critical patient according to claim 6, characterized in that: The surface of the mobile frame (19) is provided with a through hole capable of accommodating the protective cylinder, and the two opposite sides of the mobile frame (19) are respectively provided with a limiting block (20) engaged with the arc-shaped groove (21) for blocking the protective cylinder from disengaging from the through hole; the two opposite sides of the outer end of the limiting block (20) are respectively fixedly connected with a movable rod (23), and the outer end of the movable rod (23) is respectively fixedly connected with a handle (22); the surface of the movable rod (23) is respectively fixedly connected with a spring baffle (24), and the inner side of the mobile frame (19) corresponding to the movable rod (23) is respectively provided with a spring groove with two open ends, the spring baffle (24) is slidingly fitted in the spring groove, and the inside of the spring groove is provided with a return spring (25), and the return spring (25) is located on the outer side of the spring baffle (24).

8. The fall-preventing tracheal cannula based on a critical patient according to claim 6, characterized by: The surface of the hinged plate (3) is provided with a mounting hole, and the inner side of the mounting hole is respectively fixedly connected with a protective pad (4).

Images