Hemodialysis tubing clamp
By designing a hemodialysis tubing fixing clamp, and utilizing the combination of elastic clamping blocks and buffer pads, the problem of insufficient flexibility and adaptability of existing devices is solved, thereby achieving tubing stability and extending service life, and reducing risks during the dialysis process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI KAIYI HOSPITAL CO LTD
- Filing Date
- 2025-03-04
- Publication Date
- 2026-07-21
AI Technical Summary
Existing hemodialysis tubing fixation devices lack flexibility and adaptability, and lack effective buffering mechanisms, resulting in tubing that is prone to loosening and slipping, has a short service life, and increases the risk of dialysis interruption.
A hemodialysis tubing fixation clip was designed, which uses a clamping block with grooves on the inner surface of the upper and lower fixing buckles connected by a spring. It is equipped with a buffer pad and Velcro, providing elastic fixation and diverse fixation methods to adapt to patients of different body types and activity levels.
It improves the stability and lifespan of the tubing, reduces the risk of interruption during dialysis, and enhances the safety and comfort of the dialysis process.
Smart Images

Figure CN224523780U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, specifically to a hemodialysis tubing fixing clip. Background Technology
[0002] During hemodialysis, the secure fixation of the tubing is crucial. It ensures the stability and safety of blood circulation as it passes through the extracorporeal purification equipment. If the tubing becomes loose or slips out, it can lead to serious consequences such as treatment interruption, infection, or bleeding. Therefore, a reliable fixation device not only guarantees the continuity of the dialysis process but also improves patient comfort and treatment safety. This is especially important for patients undergoing long-term dialysis.
[0003] While some existing fixation devices can meet basic needs to a certain extent, they still face many challenges in practical application. Traditional fixation methods cannot provide sufficient flexibility and adaptability, especially when dealing with patients of different body types and activity levels, often resulting in poor fixation. Furthermore, due to the lack of effective cushioning mechanisms, the tubing is easily damaged by compression, friction, or pulling, which not only shortens the tubing's lifespan but also increases the risk of dialysis interruption. Utility Model Content
[0004] The purpose of this invention is to provide a hemodialysis tubing fixing clip to solve the problems of insufficient flexibility and adaptability of existing fixing devices and the lack of an effective buffering mechanism.
[0005] To achieve the above objectives, a hemodialysis tubing fixing clip is provided, including an A-type clip. The A-type clip includes an upper clip body and a lower clip body. A buckle is fixedly connected to the upper clip body, and the buckle includes an upper fixing buckle and a lower fixing buckle, wherein:
[0006] The inner surfaces of the upper and lower fixing buckles are both provided with grooves, and clamping blocks are provided inside the grooves;
[0007] The clamping block is elastically connected to the upper and lower fixing buckles by springs;
[0008] The clamping block is provided with buffer pads at both the front and rear along the central axis. The buffer pads are located in the groove and are fixedly connected to the upper and lower fixing buckles.
[0009] As a further improvement to this technical solution, limit blocks are also provided on both sides of the clamping block, and anti-slip pads are fixedly connected to the surface of the clamping block.
[0010] As a further improvement to this technical solution, the upper fixing buckle and the lower fixing buckle are rotatably connected by a rotating shaft.
[0011] As a further improvement to this technical solution, the buckle is also provided with a locking mechanism located on one side of the buckle and opposite to the rotating shaft.
[0012] As a further improvement to this technical solution, the upper clamp is a polyhedral structure with arc-shaped features.
[0013] As a further improvement to this technical solution, the lower clamp has a straight structure, and a Velcro fastener is fixedly connected to the bottom of the lower clamp.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] 1. In this hemodialysis tubing fixing clamp, grooves are opened on the inner surfaces of the upper and lower fixing buckles. The clamping blocks in the grooves are elastically connected by springs. When fixing the hemodialysis tubing, the elastic force provided by the springs allows the clamping blocks to fit tightly against the tubing. Even if the patient moves during dialysis, the tubing is not easy to loosen or slip off, and the fixing effect is stable.
[0016] 2. In this hemodialysis tubing clamp, the buffer pads positioned along the central axis of the clamping block play a crucial role in buffering and protecting the tubing during fixation. Patients inevitably move their limbs during dialysis, which can cause the tubing to be squeezed, rubbed, or pulled. The buffer pads effectively alleviate the impact of these external forces on the tubing, preventing damage and aging due to long-term friction or external forces, extending the tubing's lifespan, and reducing the risk of dialysis interruptions due to tubing damage, thus ensuring the smooth progress of dialysis treatment.
[0017] 3. The hemodialysis tubing fixing clip expands the fixing methods by setting Velcro on the back of the A-type clip. It can be clipped to the bed rail or the patient's blanket, or it can be tied to the patient's arm or wrist using Velcro. This effectively fixes the hemodialysis tubing, reduces the risk of accidental needle dislodgement due to tubing shaking or pulling during dialysis, and improves the safety and stability of the dialysis process. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the buckle of this utility model;
[0020] Figure 3 This is a top view of the buckle structure of this utility model after it has been unfolded.
[0021] The meanings of the labels in the diagram are as follows:
[0022] 1. Buckle; 11. Upper fixing buckle; 12. Lower fixing buckle; 13. Rotating shaft; 14. Clamping block; 15. Spring; 16. Buffer pad; 17. Locking mechanism; 2. Velcro; 3. A-clip; 31. Upper clamping body; 32. Lower clamping body. Detailed Implementation
[0023] 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.
[0024] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0026] Please see Figures 1-3 As shown, the purpose of this embodiment is to provide a hemodialysis tubing fixing clip, including a type A clip 3, which is composed of an upper clip body 31 and a lower clip body 32.
[0027] like Figure 1 and Figure 2As shown, a buckle 1 is fixedly installed on the top of the upper clamp 31. The buckle 1 consists of an upper fixing buckle 11 and a lower fixing buckle 12 that cooperate with each other, and the two are opened and closed by a rotating shaft 13. In the closed state of the buckle 1, clamping blocks 14 are symmetrically arranged in the grooves on the inner surfaces of the upper fixing buckle 11 and the lower fixing buckle 12. The clamping blocks 14 are elastically connected to the inner wall of the groove by springs 15. The elastic force of the springs 15 allows the clamping blocks 14 to adapt to pipes of different diameters, and the anti-slip pads covering the surface increase friction to prevent the pipes from sliding. The anti-slip pads are made of medical-grade silicone material with a fine granular texture on the surface, which provides a high coefficient of friction to ensure the stability of the pipes, and also has the softness to avoid scratching the outer wall of the pipes.
[0028] like Figure 3 As shown, the clamping block 14 is also provided with buffer pads 16 at both ends. The buffer pads 16 are fixed to the inner wall of the groove and are made of highly elastic polyurethane foam material with a honeycomb structure inside. When the pipeline is pulled or squeezed by external force, it can absorb the impact energy through deformation and avoid the pipeline from being damaged due to long-term friction or instantaneous force. The polyurethane material is not only resistant to repeated compression, but also meets the biocompatibility standard. It will not release harmful substances when in contact with the human body or medical environment for a long time.
[0029] like Figure 2 As shown, protruding limiting blocks are also provided on both sides of the clamping block 14 to constrain the movement range of the clamping block 14 and ensure that the elastic force of the spring 15 always acts within the effective range. When the pipeline is fixed, the elastic force of the spring 15 and the buffering effect of the buffer pad 16 work together to achieve both stable clamping and dispersion of external impact.
[0030] like Figure 1 As shown, a locking mechanism 17 is provided on one side of the buckle 1, opposite to the pivot 13. When the buckle 1 is closed, the locking mechanism 17 can securely lock the upper fixing buckle 11 and the lower fixing buckle 12. To unlock, press the two buttons on the lower side.
[0031] In addition, the upper clip 31 adopts an ergonomic curved polyhedron shape, and its curved contour fits the natural gripping posture of medical staff, making the clamping action more effortless and precise. The lower clip 32 adopts a simple straight structure, providing a flat and stable installation base for the Velcro 2.
[0032] The hook side of the Velcro 2 is made of nylon, while the loop side is made of microfiber fabric. The combination of these two materials allows it to withstand significant tensile force and is easy to repeatedly attach and detach, providing diverse fixation methods. For example, the clip can be wrapped around the patient's arm or wrist, or directly clipped to bed rails, bedding, etc., adapting to different scenarios and reducing the risk of tubing movement. At the same time, the flexible fixation of the Velcro 2 enhances the overall adaptability of the device, making it particularly suitable for patients with frequent movements, effectively preventing tubing dislodgement due to changes in body position.
[0033] Working principle: First, place the hemodialysis tubing between the upper clamp 31 and the lower clamp 32 of the type A clamp 3. By manual operation, rotate the upper fixing buckle 11 and the lower fixing buckle 12 in the buckle 1 around the rotating shaft 13 to open, and then place the tubing between the two clamping blocks 14.
[0034] Rotating the upper fixing buckle 11 engages with the latch 1, locking it via the locking mechanism 17. At this point, the spring 15 provides the necessary elasticity, allowing the clamping block 14 to fit tightly against the pipeline. This not only ensures the pipeline is securely clamped but also accommodates pipelines of different diameters, increasing the flexibility and applicability of the device. Furthermore, the anti-slip pads on the surface of the clamping block 14 further enhance friction, preventing the pipeline from slipping or loosening during use.
[0035] The clamping block 14 is equipped with buffer pads 16 at the front and rear. When the patient moves his / her limbs during dialysis, the highly elastic buffer pads 16 can effectively absorb and buffer the impact of external forces on the tubing, protect the tubing from the effects of squeezing, friction or pulling, thereby extending the service life of the tubing and reducing the risk of treatment interruption due to tubing damage.
[0036] The back of the fixation clip also features Velcro 2, providing a variety of fixation options. Healthcare professionals can flexibly attach the clip to the bed railing, the patient's clothing, or other suitable objects, or even wrap it directly around the patient's arm or wrist, to increase the stability of the fixation and reduce the risk of needle dislodgement due to tubing movement or accidental pulling during dialysis, ensuring the safety and stability of the dialysis process.
[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A hemodialysis tubing fixing clamp, comprising an A-type clamp (3), wherein the A-type clamp (3) comprises an upper clamp body (31) and a lower clamp body (32), wherein a buckle (1) is fixedly connected above the upper clamp body (31), and the buckle (1) comprises an upper fixing buckle (11) and a lower fixing buckle (12), characterized in that: The inner surfaces of the upper fixing buckle (11) and the lower fixing buckle (12) are provided with grooves, and clamping blocks (14) are provided inside the grooves; The clamping block (14) is elastically connected to the upper fixing buckle (11) and the lower fixing buckle (12) by a spring (15); The clamping block (14) is provided with buffer pads (16) in both the front and rear directions along the central axis. The buffer pads (16) are located in the groove and are fixedly connected to the upper fixing buckle (11) and the lower fixing buckle (12).
2. The hemodialysis tubing fixing clamp according to claim 1, characterized in that: Limiting blocks are also provided on both sides of the clamping block (14), and anti-slip pads are fixedly connected to the surface of the clamping block (14).
3. The hemodialysis tubing fixing clamp according to claim 1, characterized in that: The upper fixing buckle (11) and the lower fixing buckle (12) are rotatably connected by a rotating shaft (13).
4. The hemodialysis tubing fixing clamp according to claim 3, characterized in that: The buckle (1) is also provided with a locking mechanism (17) located on one side of the buckle (1) and opposite to the rotating shaft (13).
5. The hemodialysis tubing fixing clamp according to claim 1, characterized in that: The upper clamp (31) is a polyhedral structure with arc-shaped features.
6. The hemodialysis tubing fixing clamp according to claim 1, characterized in that: The lower clip (32) has a straight surface structure, and a Velcro (2) is fixedly connected to the lower part of the lower clip (32).