Hemodialysis tube fixing protective sleeve

By designing a protective sleeve for fixing hemodialysis catheters, and utilizing structures such as arm sleeves, limiting inserts, and protective covers, the problem of unreliable fixation of hemodialysis catheters was solved, achieving stable connection and safety protection, and reducing treatment risks.

CN224331339UActive Publication Date: 2026-06-09SUZHOU TRADITIONAL CHINESE MEDICINE HOSPITAL

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU TRADITIONAL CHINESE MEDICINE HOSPITAL
Filing Date
2025-02-07
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

The hemodialysis catheter is not securely fixed by adhesive tape, which can easily lead to displacement, increasing treatment risks and secondary damage.

Method used

A hemodialysis catheter fixation and protection sleeve was designed, including an arm sleeve, a limiting insert, a limiting fin, and a protective cover. The sleeve fits the patient's arm with a flexible pad and is fixed with a restraint strap. The limiting insert and fin provide stable positioning, and the protective cover protects the hemodialysis catheter.

Benefits of technology

It effectively prevents hemodialysis catheter displacement, reduces treatment risks, protects the hemodialysis catheter from external pressure, and improves connection stability and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of medical auxiliary device technology, and in particular to a hemodialysis catheter fixation and protection sleeve. It includes an arm sleeve with a flexible pad at the bottom that conforms to the arm body. Multiple fixing brackets for the passage of restraint straps are fixed around the arm sleeve. Two limiting posts are inserted into the top of the arm sleeve, and limiting fins are fixed on both sides of the limiting posts, which are inserted into the arm sleeve. The bottom of the limiting fins has grooves for the hemodialysis catheter to pass through. A protective cover plate is slotted and snapped onto the top of the arm sleeve. The technical problem this utility model aims to solve is that hemodialysis catheters are usually fixed using adhesive tape, which is not secure enough and can easily lead to catheter displacement and secondary injury.
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Description

Technical Field

[0001] This utility model relates to the field of medical auxiliary device technology, and in particular to a hemodialysis tube fixing and protective sleeve. Background Technology

[0002] Hemodialysis is a treatment method that removes toxins, metabolic waste and excess water from the body using artificial equipment. It is often used for patients with kidney failure or blood poisoning, in cases where the body cannot excrete harmful substances on its own, to maintain their lives, remove metabolic waste and maintain electrolyte and acid-base balance. Usually, patients need to receive treatment 2 to 3 times a week, and each blood washing session takes 4 to 6 hours.

[0003] During hemodialysis, the hemodialysis catheter must first be connected to the patient's intravenous access and then to the hemodialysis machine to ensure that the blood can flow smoothly into the dialyzer for purification. However, in the traditional method, the hemodialysis catheter is simply fixed to the patient's side by adhesive tape, which can easily lead to catheter displacement, resulting in poor blood circulation, increasing the risk of treatment, and potentially causing secondary damage. Utility Model Content

[0004] The technical problem this invention aims to solve is that hemodialysis catheters are usually fixed using adhesive tape, which is not secure enough and can easily lead to catheter displacement and secondary injury.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a hemodialysis tube fixing protective sleeve, including an arm sleeve, the bottom of the arm sleeve is set as a flexible pad that fits against the arm body, a plurality of fixing brackets for the binding strap to pass through are fixedly arranged around the arm sleeve, two limiting posts are inserted into the top of the arm sleeve, limiting fins that are inserted into the arm sleeve are fixedly arranged on both sides of the limiting posts, and the bottom of the limiting fins is provided with a groove for the hemodialysis tube to pass through, and a protective cover plate is snapped into the top of the arm sleeve through a slot.

[0006] As a further improvement of this utility model, the top of the arm sleeve is provided with a slot for fastening the limiting plug, and the sides of the slot are provided with insertion holes for fastening the limiting wing plate.

[0007] As a further improvement of this utility model, guide blocks are fixedly connected to both sides of the limiting plug, and guide grooves are provided on the inner walls of both sides of the slot for the guide blocks to slide into.

[0008] As a further improvement of this utility model, the top of the arm sleeve is fixedly connected with a strip-shaped slot for securing the blood dialysis tube.

[0009] As a further improvement of this utility model, both ends of the protective cover are provided with through holes for the blood transfusion tube to pass through.

[0010] As a further improvement of this utility model, through-hole brackets are fixedly connected to both sides of the arm sleeve.

[0011] The beneficial effects of this invention are as follows: The top of the arm sleeve has a strip-shaped groove, which provides a stable and reliable limiting effect for the hemodialysis catheter, ensuring that the catheter will not shift due to external forces. The limiting post and limiting fins at the top of the arm sleeve further guarantee the limiting effect on the hemodialysis catheter, ensuring a secure connection. Simultaneously, a protective cover plate is fixedly attached to the top of the arm sleeve, protecting the hemodialysis catheter from external stress and pressure, thus preventing damage and effectively reducing the risk of treatment and avoiding secondary injury. Attached Figure Description

[0012] Figure 1 This is an overall schematic diagram of a hemodialysis catheter fixing and protective sleeve according to the present invention;

[0013] Figure 2 This is a partial sectional view of a hemodialysis catheter fixing and protective sleeve according to the present invention;

[0014] Figure 3 This is a bottom view of a hemodialysis catheter fixing and protective sleeve according to the present invention;

[0015] Figure 4 This is a component illustration of a hemodialysis catheter fixing and protective sleeve according to this utility model.

[0016] As shown in the figure: 1. Arm sleeve; 2. Fixing frame; 3. Limiting insert; 4. Limiting wing plate; 5. Protective cover plate; 6. Slot; 7. Insertion hole; 8. Guide block; 9. Strip slot; 10. Perforation; 11. Through hole frame. Detailed Implementation

[0017] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly mentioned in this specification are defined relative to their structure and are relative concepts. Therefore, they may vary depending on their location and usage; thus, these or other directional terms should not be interpreted as restrictive terms.

[0018] The singular forms “a,” “the,” and “the” used in this specification are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes one or more of the associated listed items, any or all possible combinations thereof.

[0019] To make the technical problems to be solved, the technical solutions, and the beneficial effects of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0020] This utility model provides a hemodialysis catheter fixation and protection sleeve, including an arm sleeve 1;

[0021] As attached Figure 1 , 2 As shown, the bottom of the arm sleeve 1 is designed with a flexible pad that fits snugly against the arm body, providing a comfortable fit for the patient. Four fixing brackets 2 are fixed around the arm sleeve 1 for the passage of restraint straps. These brackets 2 can be wrapped with restraint straps to ensure a reliable connection between the arm sleeve 1 and the patient. A protective cover plate 5 is slotted and snapped onto the top of the arm sleeve 1. The protective cover plate 5 is rectangular and has a locking block at its bottom that engages with the slot. Both ends of the protective cover plate 5 have through-holes 10 for the hemodialysis tubing to pass through, protecting the hemodialysis tubing from external pressure. A strip-shaped locking groove 9 is fixedly connected to the top of the arm sleeve 1 for securing the hemodialysis tubing, providing a limiting effect. Through-hole brackets 11 are fixedly connected to both sides of the arm sleeve 1, allowing for suspension and saving space during transport. Two limiting posts 3 are inserted into the top of the arm sleeve 1 to reinforce the limiting effect on the hemodialysis tubing.

[0022] As attached Figure 2 , 3 As shown in Figure 4, limiting fins 4 are fixedly installed on both sides of the limiting post 3 to be inserted into the arm sleeve 1. The bottom of the limiting fin 4 has a groove for the hemodialysis tube to pass through; the limiting fin 4 limits the hemodialysis tube through the bottom groove, thus limiting its position. The top of the arm sleeve 1 has a slot 6 for the limiting post 3 to be fastened, and the sides of the slot 6 have insertion holes 7 for the limiting fins 4 to be fastened. The insertion holes 7 are located at the top of the arm sleeve 1; and the slot 6 and insertion holes 7 ensure a tight connection between the limiting post 3, the limiting fins 4 and the arm sleeve 1. Guide blocks 8 are fixedly connected to both sides of the limiting post 3, and guide grooves are opened on the inner walls of both sides of the slot 6 for the guide blocks 8 to slide into; the guide blocks 8 and guide grooves provide guidance for the assembly and insertion of the limiting post 3.

[0023] Working Principle: In practical implementation, the flexible pad at the bottom of the arm sleeve 1 is first fitted to the patient's arm, and the restraint strap is wrapped around the fixing frame 2 to securely connect the arm sleeve 1 to the patient's arm. Then, the hemodialysis tube is sequentially inserted into the strip-shaped slot 9, initially limiting its position. The limiting post 3 is inserted into the slot 6 through the guide blocks 8 on both sides and the guide groove. Simultaneously, the limiting fins 4 on both sides of the limiting post 3 are securely engaged with the insertion holes 7, limiting the hemodialysis tube to the groove at the bottom of the limiting fins 4. The locking block at the bottom of the protective cover 5 is engaged with the slot at the top of the arm sleeve 1, and the hemodialysis tube passes through the perforations 10 on both sides of the protective cover 5. Finally, the two ends of the hemodialysis tube are connected to the hemodialysis equipment and the patient respectively for hemodialysis treatment.

[0024] 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 the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A protective sleeve for fixing hemodialysis catheters, characterized in that: The arm sleeve (1) is provided with a flexible pad at the bottom that fits the arm body. Multiple fixing brackets (2) for the binding strap to pass through are fixed around the arm sleeve (1). Two limiting posts (3) are inserted into the top of the arm sleeve (1). Limiting wing plates (4) that are inserted into the arm sleeve (1) are fixed on both sides of the limiting posts (3). The bottom of the limiting wing plates (4) is provided with a groove for the blood dialysis tube to pass through. A protective cover plate (5) is attached to the top of the arm sleeve (1) by a slot.

2. The hemodialysis catheter fixation and protective sleeve according to claim 1, characterized in that: The top of the arm sleeve (1) is provided with a slot (6) for fastening the limiting post (3), and the sides of the slot (6) are provided with insertion holes (7) for fastening the limiting wing plate (4).

3. The hemodialysis catheter fixation and protective sleeve according to claim 2, characterized in that: The limiting insert (3) is fixedly connected to guide blocks (8) on both sides, and the inner walls of both sides of the slot (6) are provided with guide grooves for the guide blocks (8) to slide into.

4. The hemodialysis catheter fixation and protective sleeve according to claim 1, characterized in that: The top of the arm sleeve (1) is fixedly connected to a strip groove (9) for attaching the blood supply cannula.

5. The hemodialysis catheter fixation and protective sleeve according to claim 1, characterized in that: Both ends of the protective cover (5) are perforated (10) for the blood transfusion tube to pass through.

6. The hemodialysis catheter fixation and protective sleeve according to claim 1, characterized in that: The arm sleeve (1) is fixedly connected to the two sides with through-hole brackets (11).