Adjustable ECMO cannula fixator

Abstract

The utility model relates to the technical field of medical pipeline fixing, in particular to an adjustable ECMO intubation fixator which comprises a base, a circular fixing cover is fixedly connected to the middle end of the top of the base, movable grooves are formed in the left side and the right side of the circular fixing cover, and movable blocks matched with the movable grooves are arranged on the inner sides of the movable grooves. Under the assistance of the adjusting disc, the circular fixing cover, the elastic clamping plate, the right-angle trapezoidal groove and the positioning clamping groove, the fixing device has the advantage of facilitating position and angle adjustment, and the problem that an existing adjustable ECMO cannula fixing device cannot be used for fixing the ECMO cannula after the fixing device is pasted on the skin of a patient is solved. The problems that the position angle of the fixator is adjusted according to the condition of a patient or the trend of an ECMO pipeline, the fixator is taken down from the skin of the patient again and pasted again, the patient is easily stimulated, the pasting strength of an adhesive layer used for pasting can be greatly reduced, and normal use of the fixator is affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical pipeline fixation, in particular to an adjustable ECMO cannula fixer. Background Art

[0002] ECMO (Extracorporeal Membrane Oxygenation), commonly known as an artificial lung, is a medical emergency technology device used to treat critical illnesses. It is mainly used to treat critically ill patients with cardiopulmonary failure, providing patients with continuous extracorporeal respiration and circulation functions to maintain their lives and buy precious time for rescue. In clinical nursing work, most patients treated with ECMO are critically ill patients. Most patients have many drainage tubes inserted into their bodies, and most patients are in a forced position and are prone to restlessness. Moreover, during the treatment process, unplanned extubation is very likely to occur due to operations such as turning over. ECMO treatment is extremely critical. If the tube is dislodged or shifted, it is easy to cause massive bleeding in the patient, reducing the treatment effect and even the patient's survival rate.

[0003] Currently, patent document CN219579682U discloses an adjustable ECMO cannula holder. The holder comprises a base with an adhesive layer at the bottom and an adjustable buckle structure mounted above the base for securing the cannula. Large openings are provided on either side of the base, each for inserting a flat headband that wraps around the patient's body for securement during use. This utility model is easy to use, and the adjustable buckle structure can be adjusted to the desired tightness based on the catheter model, enhancing the securement of the ECMO line.

[0004] However, the above-mentioned existing adjustable ECMO cannula holder can fix the ECMO tube with the cooperation of the first clamping arm, the second clamping arm and the fixing arm, but it is unable to adjust the position angle of the holder according to the patient's condition or the direction of the ECMO tube after the holder is pasted on the patient's skin. Removing the holder from the patient's skin and pasting it again will easily irritate the patient, and the adhesive strength of the adhesive layer used for bonding will be greatly reduced, thereby affecting the normal use of the holder. For this reason, we propose an adjustable ECMO cannula holder. Utility Model Content

[0005] The purpose of the utility model is to provide an adjustable ECMO cannula holder, which has the advantage of convenient position and angle adjustment, and solves the problem that the existing adjustable ECMO cannula holder can fix the ECMO tube with the cooperation of the first clamping arm, the second clamping arm and the fixing arm, but cannot adjust the position angle of the holder according to the patient's condition or the direction of the ECMO tube after the holder is pasted on the patient's skin. Removing the holder from the patient's skin and pasting it again will easily irritate the patient, and the adhesive strength of the adhesive layer used for bonding will be greatly reduced, thereby affecting the normal use of the holder.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an adjustable ECMO cannula holder, comprising a base, a circular fixed cover fixedly connected to the middle end of the top of the base, movable grooves are provided on the left and right sides of the circular fixed cover, a movable block adapted thereto is provided on the inner side of the movable groove, a push block is fixedly connected to the side of the movable block away from the circular fixed cover, right-angled trapezoidal grooves are provided on the left and right ends of the circular fixed cover, a through hole is provided at the middle end of the top of the circular fixed cover, a limit pin rod is movably connected to the inner side of the through hole, an adjusting disk is fixedly connected to the top of the limit pin rod, a plurality of positioning slots distributed at equal angles are provided on the bottom of the adjusting disk, an elastic card plate is fixedly connected to the top of the movable block away from the push block, and a positioning frame is fixedly connected to the top of the adjusting disk.

[0007] Preferably, an adhesive layer is provided at the bottom of the base, a release paper layer is bonded to the bottom of the adhesive layer, connecting grooves are provided at both left and right ends of the base, and connecting belts are provided on the inner sides of the connecting grooves.

[0008] Preferably, the longitudinal section of the positioning slot is a right triangle, and the positioning slot and the right-angled trapezoidal slot correspond to each other vertically.

[0009] Preferably, the elastic clamping plate fits in with the inclined surface of the right-angled trapezoidal groove, and the upper end of the elastic clamping plate is clamped to the inner side of the positioning clamping groove.

[0010] Preferably, the positioning frame is a frame-shaped structure with an opening at the left end of the top and two arc-shaped corners at the lower end, and the positioning frame is made of polyethylene.

[0011] Preferably, a positioning groove is provided at the middle end of the bottom inner side of the positioning frame, a threaded rod is threadedly connected to the top of the positioning frame, and a rotating block is fixedly connected to the top of the threaded rod.

[0012] Preferably, the lower end of the threaded rod is movably connected to an arc-shaped positioning pressure plate, and the arc-shaped positioning pressure plate is located above the positioning groove.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] The upper end of the elastic card plate will enter the upper and lower corresponding positioning slots, thereby fixing the position of the positioning frame through the adjusting disk.

[0015] 2. The utility model is provided with a positioning frame. After the cannula to be fixed is inserted through the opening at the top left end thereof, the lower end of the cannula falls into the positioning groove. Then, the threaded rod is driven to rotate by the rotating block, thereby causing the arc-shaped positioning pressure plate to move downward in the positioning frame. Thus, with the assistance of the positioning groove, cannulas of different specifications can be quickly fixed and easily disassembled, which is beneficial for use by medical personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the utility model from the first perspective;

[0017] Figure 2 This is a schematic cross-sectional view of the utility model from a second viewing angle;

[0018] Figure 3 This is a schematic diagram of the circular fixed cover structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the matching structure of the adjustment disk and the elastic clamping plate of the utility model.

[0020] In the figure: 1. Base; 2. Adhesive layer; 3. Release paper layer; 4. Connecting belt; 5. Connecting slot; 6. Positioning frame; 7. Positioning groove; 8. Arc-shaped positioning pressure plate; 9. Rotating block; 10. Threaded rod; 11. Limit pin rod; 12. Circular fixing cover; 13. Elastic clamping plate; 14. Adjusting disk; 15. Right-angle trapezoidal slot; 16. Push block; 17. Movable block; 18. Through hole; 19. Movable slot; 20. Positioning slot. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] In the description of this utility model, unless otherwise specified, "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction, and therefore should not be construed as limiting this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0024] It should be noted that the base 1, adhesive layer 2, release paper layer 3, connecting belt 4, connecting groove 5, positioning frame 6, positioning groove 7, arc-shaped positioning pressure plate 8, rotating block 9, threaded rod 10, limit pin rod 11, circular fixed cover 12, elastic clip 13, adjustment disk 14, right-angle trapezoidal groove 15, push block 16, movable block 17, through hole 18, movable groove 19 and positioning slot 20 components of this application are all universal standard parts or components known to technical personnel in this field. Their structure and principles can be known to technical personnel through technical manuals or through conventional experimental methods, and the connection with the power supply circuit adopts the conventional connection method in the prior art, which will not be described in detail here.

[0025] Example 1

[0026] See also Figure 1-Figure 4As shown, the utility model provides a technical solution: an adjustable ECMO cannula holder, comprising a base 1, an adhesive layer 2 is provided at the bottom of the base 1, a release paper layer 3 is bonded to the bottom of the adhesive layer 2, connecting grooves 5 are provided at both ends of the left and right sides of the base 1, a connecting belt 4 is provided on the inner side of the connecting groove 5, a circular fixed cover 12 is fixedly connected to the middle end of the top of the base 1, movable grooves 19 are provided on the left and right sides of the circular fixed cover 12, a movable block 17 adapted thereto is provided on the inner side of the movable groove 19, a push block 16 is fixedly connected to the side of the movable block 17 away from the circular fixed cover 12, a right-angled trapezoidal groove 15 is provided at both ends of the left and right sides of the circular fixed cover 12, a through hole 18 is provided at the middle end of the top of the circular fixed cover 12, The inner side of 18 is movably connected with a limit pin 11, and the top of the limit pin 11 is fixedly connected with an adjusting disk 14. The bottom of the adjusting disk 14 is provided with a plurality of positioning slots 20 distributed at equal angles. The longitudinal section of the positioning slot 20 is a right triangle, and the positioning slot 20 corresponds to the right-angled trapezoidal slot 15 up and down. The top of the movable block 17 away from the push block 16 is fixedly connected with an elastic card plate 13 which is tilted. The elastic card plate 13 fits the inclined surface of the right-angled trapezoidal slot 15, and the upper end of the elastic card plate 13 is clamped to the inner side of the positioning slot 20. The top of the adjusting disk 14 is fixedly connected with a positioning frame 6. The positioning frame 6 is a frame-shaped structure with an opening at the top left end and two arc-shaped corners at the lower end, and the material of the positioning frame 6 is polyethylene.

[0027] This technical solution: After removing the release paper layer 3 at the bottom of the adhesive layer 2, with the help of the base 1, the fixator can be attached to the patient's skin surface through the adhesive layer 2. If the position angle of the fixator needs to be adjusted during use after attachment, the push block 16 drives the movable block 17 to slide on the inner side of the movable groove 19 and move toward the limit pin 11. Then, with the help of the inclined surface of the right-angled trapezoidal groove 15, the moving movable block 17 can squeeze the elastic card plate 13. At the same time, the upper end of the elastic card plate 13 will withdraw from the corresponding positioning card groove 20 and retract into the right-angled trapezoidal groove 15. At this time, the push block 16 will fit with the outer wall of the circular fixed cover 12 to play a role. The ability to limit, then, the medical staff can, with the cooperation of the through hole 18 and the limiting pin 11, drive the adjusting disk 14 to rotate through the positioning frame 6. After the position angle adjustment of the positioning frame 6 is completed, the push block 16 is relaxed, and the squeezed elastic card plate 13 can restore the tension and drive the movable block 17 and the push block 16 to reset. At the same time, the upper end of the elastic card plate 13 will enter the corresponding upper and lower positioning slots 20, so that the position of the positioning frame 6 can be fixed through the adjusting disk 14. It is simple to operate, easy to use, and has low manufacturing cost. Then, with the assistance of the connecting through slot 5, the connecting belt 4 is fixed around the patient's body to ensure the firmness of the fixator when in use.

[0028] Example 2

[0029] On the basis of embodiment 1, the present invention is as follows Figure 1-Figure 2 As shown, a positioning groove 7 is provided at the middle end of the inner bottom of the positioning frame 6, a threaded rod 10 is threadedly connected to the top of the positioning frame 6, a rotating block 9 is fixedly connected to the top of the threaded rod 10, and an arc-shaped positioning pressure plate 8 is movably connected to the lower end of the threaded rod 10, and the arc-shaped positioning pressure plate 8 is located above the positioning groove 7.

[0030] This technical solution: through the setting of the positioning frame 6, after the cannula to be fixed is inserted through the opening at the top left end thereof, the lower end of the cannula falls into the positioning groove 7. Then, the rotating block 9 drives the threaded rod 10 to rotate, thereby causing the arc-shaped positioning pressure plate 8 to move downward in the positioning frame 6. Thus, with the assistance of the positioning groove 7, cannulas of different specifications can be quickly fixed and easily disassembled, which is beneficial for use by medical personnel.

[0031] It is important to note that the construction and arrangement of the present application shown in a number of different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, directional changes, etc.) without departing substantially from the novel teachings and advantages of the subject matter described in this application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete elements may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also an equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0032] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the scope of protection of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. An adjustable ECMO cannula holder, comprising a base (1), characterized in that: The middle end of the top of the base (1) is fixedly connected to a circular fixed cover (12), and movable grooves (19) are provided on both the left and right sides of the circular fixed cover (12). A movable block (17) adapted thereto is provided on the inner side of the movable groove (19), and a push block (16) is fixedly connected to the side of the movable block (17) away from the circular fixed cover (12). The left and right ends of the circular fixed cover (12) are both provided with right-angled trapezoidal grooves (15). The top of the circular fixed cover (12) is provided with a movable groove (19). A through hole (18) is provided at the middle end, a limit pin (11) is movably connected to the inner side of the through hole (18), an adjusting disk (14) is fixedly connected to the top of the limit pin (11), a plurality of positioning slots (20) distributed at equal angles are provided at the bottom of the adjusting disk (14), an elastic card plate (13) is fixedly connected to the top of the end of the movable block (17) away from the push block (16), and a positioning frame (6) is fixedly connected to the top of the adjusting disk (14).

2. The adjustable ECMO cannula holder according to claim 1, characterized in that: An adhesive layer (2) is provided at the bottom of the base (1), a release paper layer (3) is bonded to the bottom of the adhesive layer (2), connecting grooves (5) are provided at both left and right ends of the base (1), and connecting belts (4) are provided on the inner sides of the connecting grooves (5).

3. The adjustable ECMO cannula holder according to claim 1, characterized in that: The longitudinal section of the positioning slot (20) is a right-angled triangle, and the positioning slot (20) and the right-angled trapezoidal slot (15) correspond to each other vertically.

4. The adjustable ECMO cannula holder according to claim 1, characterized in that: The elastic clamping plate (13) is fitted with the inclined surface of the right-angled trapezoidal groove (15), and the upper end of the elastic clamping plate (13) is clamped on the inner side of the positioning clamping groove (20).

5. The adjustable ECMO cannula holder according to claim 1, characterized in that: The positioning frame (6) is a frame-shaped structure with an opening at the left end of the top and two arc-shaped corners at the bottom, and the positioning frame (6) is made of polyethylene.

6. The adjustable ECMO cannula holder according to claim 1, characterized in that: A positioning groove (7) is provided at the middle end of the inner bottom of the positioning frame (6), a threaded rod (10) is threadedly connected to the top of the positioning frame (6), and a rotating block (9) is fixedly connected to the top of the threaded rod (10).

7. The adjustable ECMO cannula holder according to claim 6, characterized in that: The lower end of the threaded rod (10) is movably connected to an arc-shaped positioning pressing plate (8), and the arc-shaped positioning pressing plate (8) is located above the positioning groove (7).

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