Anti-bending structure of dialysis tube

By designing a combination structure of a base, an arc-shaped plate, and a positioning sleeve on the dialysis tubing, the problem of easy bending of the dialysis tubing is prevented, thus achieving smooth blood flow and improving patient comfort.

CN223601836UActive Publication Date: 2025-11-28THE SECOND AFFILIATED HOSPITAL ARMY MEDICAL UNIV
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Patent Information

Application Number
CN202520220319.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-11
Publication Date
2025-11-28
Estimated Expiration
2035-02-11

AI Technical Summary

Technical Problem

Existing dialysis catheters are prone to bending during use, which can lead to poor blood flow and an increased risk of thrombosis, while also affecting patient comfort and safety.

Method used

A bend-resistant structure was designed, comprising a base, an arc-shaped plate, and a positioning component. The base has upper and lower mounting positions, and the arc-shaped plate bends downward and cooperates with the positioning sleeve to form a positioning channel, preventing the dialysis tube from being bent by external force and improving stability and comfort.

Benefits of technology

It effectively prevents dialysis tubing from bending due to external force, ensures smooth blood flow, reduces the risk of thrombosis, and improves patient comfort and ease of operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an anti-bending structure of a dialysis tube. The anti-bending structure of the dialysis tube comprises a base, an arc-shaped plate and a positioning assembly. The base is provided with a first mounting position and a second mounting position which are sequentially arranged in the vertical direction, and the second mounting position is suitable for abutting against a mounting surface in a mounting environment; the arc-shaped plate is arranged at the first mounting position in a downward bending manner; the positioning assembly comprises a first positioning sleeve and a second positioning sleeve, the first positioning sleeve and the second positioning sleeve are arranged on the arc-shaped plate in a spaced mode, and the first positioning sleeve and the second positioning sleeve are each provided with an inner cavity, so that a positioning channel allowing a dialysis tube to penetrate through is formed between the first positioning sleeve and the second positioning sleeve; wherein the surface of the arc-shaped plate is attached to the surface of the first positioning sleeve and the surface of the second positioning sleeve, and the positioning channel and the arc-shaped plate are concentrically arranged. The hemodialysis catheter solves the technical problems that according to a traditional structure, the hemodialysis catheter is prone to being bent, and comfort of a patient is reduced.
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Description

TECHNICAL FIELD

[0001] The utility model relates to medical auxiliary instrument technical field especially, relate to a kind of anti-bending structure of dialysis tube. BACKGROUND

[0002] Dialysis tube is prone to bending in actual application, which not only interferes with normal blood circulation, leading to a decline in dialysis effect, but also can cause potential risks to the health of patients. For example, the bent part can cause blood flow to slow down or stop, increasing the risk of thrombosis; or in extreme cases, even need to interrupt the dialysis process for emergency treatment. Currently, although there are some devices for fixing, they often cannot effectively prevent the dialysis tube from being bent due to patient movement or other external forces during use. At the same time, the actual needs and comfort of patients are not fully considered, leading to inconvenience or increased discomfort for patients. SUMMARY

[0003] In view of the deficiencies in the prior art, the utility model provides an anti-bending structure for dialysis tube to solve the technical problems of traditional structures that can easily cause the dialysis tube to be bent and reduce patient comfort.

[0004] The utility model provides an anti-bending structure for dialysis tube, comprising:

[0005] A base with a first mounting position and a second mounting position arranged in sequence along the up-down direction, and the second mounting position is adapted to abut with the mounting surface in the mounting environment;

[0006] An arc-shaped plate arranged in the first mounting position with a downward curvature;

[0007] A positioning assembly comprising a first positioning sleeve and a second positioning sleeve, the first positioning sleeve and the second positioning sleeve are arranged in the arc-shaped plate with a spacing, and both have an inner cavity to form a positioning channel between them for the dialysis tube to pass through;

[0008] Wherein, the surface of the arc-shaped plate is in contact with the surface of the first positioning sleeve and the surface of the second positioning sleeve, and the positioning channel is arranged with the arc-shaped plate as the same center.

[0009] Further, the first positioning sleeve and the second positioning sleeve are located at one end of the arc-shaped plate away from the base.

[0010] Further, the first positioning sleeve and / or the second positioning sleeve are provided with notches for communication with the positioning channel.

[0011] Further, the notches pass through the opposite end faces of the first positioning sleeve and / or the second positioning sleeve.

[0012] Further, the notch is provided with a first block, and the first block only partially closes the notch.

[0013] Further, the first block is provided with a first through hole for exposing part of the positioning channel.

[0014] Further, the first positioning sleeve and / or the second positioning sleeve are provided with a second through hole in communication with the positioning channel.

[0015] Further, the arc-shaped plate is provided with a second block between the first positioning sleeve and the second positioning sleeve for avoiding the positioning channel and restricting the dialysis tube.

[0016] Further, the second mounting position is provided with a mounting port, one end of the mounting port is screwed with a push rod, so that the push rod moves to the other end of the mounting port under external force.

[0017] Compared with the prior art, the base adopts the first mounting position and the second mounting position arranged upward and downward, wherein the second mounting position can be closely combined with the mounting surface (such as the edge of the hospital bed), to ensure the stability of the whole structure, effectively prevent the structure from being displaced or inclined due to external force, thereby protecting the dialysis tube from unnecessary pressure and potential bending risk. The arc-shaped plate is arranged to be bent downward and is installed at the first mounting position, which can effectively protect the dialysis tube from external pressure and avoid bending, not only enhancing the physical protection of the dialysis tube, but also making the dialysis tube more smooth in use, reducing the risk of poor blood flow or other complications caused by bending. In addition, the first positioning sleeve and the second positioning sleeve are installed at the arc-shaped plate and jointly form a positioning channel for the dialysis tube to pass through, ensuring that the dialysis tube can pass through smoothly without any obstruction, not only ensuring good flow of the dialysis tube, but also facilitating the operation and management of medical staff, while improving the comfort of patients and reducing the inconvenience and discomfort of patients caused by improper fixation of the dialysis tube. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 FIG. 1 is a structural schematic view of the anti-bending structure in an embodiment of the present utility model;

[0019] DETAILED DESCRIPTION

[0020] 1, base; 2, arc-shaped plate; 3, first positioning sleeve; 4, second positioning sleeve; 5, positioning channel; 6, notch; 7, first block; 8, first through hole; 9, second through hole; 10, second block; 11, mounting port; 12, push rod.

[0021] The purposes, functional features and advantages of the utility model will be further explained in combination with embodiments and with reference to the drawings. DETAILED DESCRIPTION

[0022] In order to make the purposes, technical schemes and beneficial effects of the utility model clearer and more apparent, the technical scheme of the utility model will be further explained below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model.

[0023] In the embodiments of the utility model, as shown in the drawings, the anti-bending structure of the dialysis tube comprises a base 1, an arc plate 2 and a positioning assembly. Figure 1 The base 1 has a first mounting position and a second mounting position arranged in sequence along the up-down direction, and the second mounting position is adapted to abut against a mounting surface in a mounting environment; the arc plate 2 is arranged at the first mounting position in a downward bending manner; the positioning assembly comprises a first positioning sleeve 3 and a second positioning sleeve 4, the first positioning sleeve 3 and the second positioning sleeve 4 are arranged at the arc plate 2 in a spaced manner, and both have an inner cavity to form a positioning channel 5 therebetween for the dialysis tube to pass through; wherein the surface of the arc plate 2 is attached to the surface of the first positioning sleeve 3 and the surface of the second positioning sleeve 4 respectively, and the positioning channel 5 is arranged with the arc plate 2 at the same center.

[0024] Specifically, in the embodiments of the utility model, the base 1 has an upper end and a lower end, the first mounting position is arranged at the upper end of the base 1 for fixing the arc plate 2, and the second mounting position is arranged at the lower end of the base 1 for fixing the base 1 at the mounting surface (such as the edge of a hospital bed) in the mounting environment. In this way, on the one hand, it can support and fix the arc plate 2, and on the other hand, it can firmly fix the structure in the mounting environment, improve the overall stability, effectively prevent the structure from being displaced or inclined due to external force, and thus protect the dialysis tube from unnecessary pressure and potential bending risk.

[0025] In the embodiments of the utility model, the arc plate 2 is arranged in a downward bending manner, that is, the concave part of the arc plate 2 is connected to the first mounting position to form a preliminary path for restraining the dialysis tube, so that the easy-bending part of the dialysis tube is arranged along the shape of the arc plate 2, and the smooth transition layout avoids the situation of being bent.

[0026] In the embodiment of the utility model, first positioning sleeve 3 and second positioning sleeve 4 are arranged at arc-shaped plate 2 in intervals, and the two positioning sleeves all have inner cavities, so that the inner cavity of first positioning sleeve 3, the gap formed between the two positioning sleeves and the inner cavity of second positioning sleeve 4 jointly form positioning channel 5 for the dialysis tube to pass through, which not only can constrain the dialysis tube in positioning channel 5 and facilitate positioning, but also can wrap the dialysis tube under the joint action of the two positioning sleeves, so that the dialysis tube can be further prevented from being bent, is no longer disturbed by external force and the comfort of the patient is improved. In addition, the surfaces of the two positioning sleeves are attached to the surface of arc-shaped plate 2, which can make positioning channel 5 arranged with arc-shaped plate 2 at the same center to prevent the dialysis tube from being bent and optimize the structure shape to make the structure more compact and avoid too many sharp parts.

[0027] The whole structure is fixed in the installation environment by base 1 in the embodiment, the stability of the whole structure is improved, meanwhile, the positioning channel 5 formed between first positioning sleeve 3, second positioning sleeve 4 and arc-shaped plate 2 can be passed through by the dialysis tube, which facilitates positioning of the dialysis tube and can isolate the dialysis tube in positioning channel 5 to avoid the dialysis tube from being bent under the influence of external force in the installation environment; in addition, the mutual cooperation of the two positioning sleeves can smoothly pass through the dialysis tube, which facilitates small-range movement of the patient and improves the comfort in the treatment process. Of course, the anti-bending structure can be provided as one and installed at the place prone to bending (such as the edge of the bed, the end of the instrument, etc.); or provided as multiple to form multiple positioning channels 5 to jointly position the dialysis tube.

[0028] As shown in the figure, Figure 1 In an embodiment, first positioning sleeve 3 and second positioning sleeve 4 are located at one end of arc-shaped plate 2 away from base 1. Specifically, in order to avoid base 1 interfering with positioning channel 5, the embodiment defines arc-shaped plate 2 to have an inner end surface and an outer end surface, base 1 is arranged at the inner end surface of arc-shaped plate 2, and the two positioning sleeves are arranged at the outer end surface, that is, base 1 and the two positioning sleeves are separated by arc-shaped plate 2 and do not affect each other, which prevents base 1 from interrupting positioning channel 5 or the dialysis tube from being knotted and having multiple bends.

[0029] As shown in the figure, Figure 1 In an embodiment, first positioning sleeve 3 and / or second positioning sleeve 4 are provided with a notch 6 for communicating with positioning channel 5. Specifically, in order to be able to check the condition of the dialysis tube in the positioning sleeve, the embodiment is provided with a notch 6 on the surface of the positioning sleeve, which can communicate with positioning channel 5, that is, the dialysis tube in positioning channel 5 can be leaked out through the above-mentioned notch 6 for easy checking. Figure 1 As shown in the figure, in the embodiment, notches 6 are arranged on the surfaces of the two positioning sleeves, which can not only achieve the above-mentioned effect, but also reduce the weight of the structure and avoid pressing the dialysis tube.

[0030] Furthermore, such as Figure 1 As shown, in one embodiment, the notch 6 penetrates the opposite end faces of the first positioning sleeve 3 and / or the second positioning sleeve 4. Specifically, in order to improve the visibility of this structure, this embodiment makes the two ends of the notch 6 penetrate the opposite ends of the positioning sleeve, so that the positioning sleeve has a C-shaped structure, which can not only wrap and position the dialysis tube, but also increase the visibility range of the dialysis tube and avoid obstruction.

[0031] Furthermore, such as Figure 1 As shown, in one embodiment, the notch 6 is provided with a first stop 7, and the first stop 7 only partially closes the notch 6. Specifically, to prevent the dialysis tube from slipping out of the notch 6, this embodiment provides a first stop 7 at the notch 6 to partially close the notch 6, thereby confining the dialysis tube within the positioning channel 5. Furthermore, the high end of the first stop 7 should not exceed half the height of the notch 6 to prevent the dialysis tube from smoothly entering and exiting the inner cavity of the corresponding positioning sleeve. Preferably, the first stop 7 is provided with a first through hole 8 to expose part of the positioning channel 5, thus exposing the dialysis tube located within the positioning channel 5 for easy viewing.

[0032] like Figure 1 As shown, in one embodiment, the first positioning sleeve 3 and / or the second positioning sleeve 4 are provided with a second through hole 9, which is connected to the positioning channel 5. Specifically, in order to further reduce the weight of the positioning sleeve, this embodiment provides a second through hole 9 on the surface of the positioning sleeve, which can be used as a weight-reduction hole. On the other hand, the second channel is also connected to the positioning channel 5 for viewing the dialysis tube inside the positioning channel 5; of course, if the notch 6 and the second through hole 9 are located in different directions of the positioning sleeve, this structure can be fixed in any direction so that the dialysis tube can be viewed through the corresponding hole.

[0033] like Figure 1 As shown, in one embodiment, the arc-shaped plate 2 is provided with a second stop 10, which is located between the first positioning sleeve 3 and the second positioning sleeve 4. This stop is used to avoid the positioning channel 5 and to constrain the dialysis tube. Specifically, since there is a gap between the first positioning sleeve 3 and the second positioning sleeve 4, to prevent the dialysis tube from bending or slipping at this gap, this embodiment provides a second stop 10 between the two positioning sleeves. This second stop 10 is fixed to the edge of the arc-shaped plate 2. On the one hand, it does not separate the positioning channel 5, allowing the dialysis tube to pass through; on the other hand, it constrains the dialysis tube to prevent displacement. Of course, since the positioning sleeve has a C-shaped structure, to better cooperate with the positioning sleeve, the second stop 10 and the open end of the positioning sleeve are staggered, thus using a zigzag limiting method to position the dialysis tube within the positioning channel 5.

[0034] like Figure 1 As shown, in one embodiment, the second mounting position is provided with a mounting opening 11, and a push rod 12 is threaded onto one end of the mounting opening 11 so that the push rod 12 can move towards the other end of the mounting opening 11 under the action of external force. Specifically, in order to fix this structure to the corresponding mounting surface, this embodiment provides a downward-facing mounting opening 11 at the second mounting position of the base 1. The push rod 12 can be threaded laterally into the mounting opening 11. Reversing the push rod 12 can change the distance between it and the inner wall of the mounting opening 11, placing the mounting surface inside the mounting opening 11. Rotating the push rod 12 can fix the base 1 to the mounting surface, improving structural stability. Furthermore, the rotary push rod 12 can prevent accidental contact and is easy to operate.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. Anti-kinking structure of a dialysis tube, characterized in that, The application relates to a base, an arc-shaped plate and a positioning assembly. The base has a first mounting position and a second mounting position arranged in sequence along the up-down direction, and the second mounting position is adapted to abut against a mounting surface in a mounting environment. The arc-shaped plate is arranged in the first mounting position in a downward bending mode. The positioning assembly comprises a first positioning sleeve and a second positioning sleeve, and the first positioning sleeve and the second positioning sleeve are arranged in the arc-shaped plate in a spaced mode and both have inner cavities to form a positioning channel between the first positioning sleeve and the second positioning sleeve. The surface of the arc-shaped plate is attached to the surface of the first positioning sleeve and the surface of the second positioning sleeve, and the positioning channel is arranged in the same center as the arc-shaped plate.

2. The anti-kinking structure of a dialysis tube according to claim 1, wherein The first positioning sleeve and the second positioning sleeve are arranged at the end of the arc-shaped plate away from the base.

3. The anti-kinking structure of a dialysis tube according to claim 1, wherein The first positioning sleeve and / or the second positioning sleeve are provided with a notch for communicating with the positioning channel.

4. The anti-kinking structure of a dialysis tube according to claim 3, wherein The notch penetrates through the opposite end surfaces of the first positioning sleeve and / or the second positioning sleeve.

5. The anti-kinking structure of a dialysis tube according to claim 3, wherein The notch is provided with a first stopper, and the first stopper only partially closes the notch.

6. The anti-kinking structure of a dialysis tube according to claim 5, wherein The first stopper is provided with a first through hole for exposing part of the positioning channel.

7. The kink-resistant structure of a dialysis tube according to any one of claims 1 to 6, wherein The first positioning sleeve and / or the second positioning sleeve are provided with a second through hole, and the second through hole communicates with the positioning channel.

8. The anti-kinking structure of a dialysis tube according to claim 1, wherein The arc-shaped plate is provided with a second stopper between the first positioning sleeve and the second positioning sleeve for avoiding the positioning channel and restricting a dialysis tube.

9. The anti-kinking structure of a dialysis tube according to claim 1, wherein The second mounting position is provided with a mounting port, and one end of the mounting port is screw-connected with a push rod to move the push rod to the other end of the mounting port under the action of external force.