Dialysis tube fixing device for intrarenal dialysis

By designing a dialysis catheter fixing device that includes components such as straps, buckles, and arc-shaped clamps, the problems of skin damage and inconvenience in adjustment caused by fixing dialysis catheters are solved, and the effect of flexibly adjusting the position of dialysis catheters and reusing them multiple times is achieved.

CN223641157UActive Publication Date: 2025-12-09SHENYANG FIRST PEOPLES HOSPITAL (SHENYANG BRAIN DISEASE RESEARCH INSTITUTE)
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Patent Information

Application Number
CN202520256684.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-18
Publication Date
2025-12-09
Estimated Expiration
2035-02-18

AI Technical Summary

Technical Problem

The existing dialysis catheters used in renal dialysis are prone to causing skin damage to patients when fixed, and it is inconvenient to adjust the fixation position. Medical tape cannot be reused multiple times.

Method used

Design a dialysis tubing fixation device that includes components such as straps, buckles, arc-shaped clamps, and adjusting screws. The device is fixed to the patient's arm by straps, and the spacing of the arc-shaped clamps is adjusted by adjusting screws and knobs to enhance the fixation effect, avoid skin damage, and achieve flexible adjustment and multiple uses.

Benefits of technology

This invention provides a flexible dialysis tube fixing device that allows for flexible adjustment of the dialysis tube's position, facilitating tube fixation, preventing skin damage to the patient, and enabling multiple reuses.

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Abstract

The utility model relates to the technical field of intrarenal dialysis, in particular to a dialysis tube fixing device for intrarenal dialysis, which comprises a bandage, a buckle, a device plate, an adjusting screw rod, an adjusting knob, a movable block, an adjusting component, a guide rail, a connecting block, a connecting rod and an arc-shaped clamping block, the buckle is arranged at one end of the bandage, and the device plate is arranged on the outer side of the bandage. An adjusting screw is arranged on one side of the device plate, an adjusting knob is arranged on the outer side of the adjusting screw, a movable block is arranged on one side of the adjusting knob, a first adjusting assembly is arranged on one side of the adjusting knob, a guide rail is arranged on the inner side of the device plate, a connecting block is arranged on the outer side of the guide rail, and a connecting rod is arranged on the outer side of the connecting block. Second adjusting assemblies are arranged at the two ends of the connecting rod. An arc-shaped clamping block is arranged at one end of the connecting block. The fixing position of the dialysis tube is flexibly adjusted in a bandage type fixing mode, tube body fixing operation is conveniently carried out, unnecessary damage to the skin surface of a patient is avoided, and the device can be recycled for multiple times, so that the practical value of the device is effectively enhanced.
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Description

Technical Field

[0001] This utility model relates to the field of renal dialysis technology, and in particular to a dialysis tubing fixing device for renal dialysis. Background Technology

[0002] Dialysis catheters for renal dialysis are important medical devices in hemodialysis or peritoneal dialysis. They play a key role in renal replacement therapy, enabling the extraction and reinfusion of the patient's blood, or the injection and extraction of dialysate into the patient's peritoneal cavity to achieve substance exchange and carry out dialysis treatment.

[0003] Most dialysis catheters used in renal dialysis nowadays are quite long. To ensure the stable conduct of dialysis treatment, they often need to be fixed to the patient's arm or forearm with medical tape. Prolonged use may cause damage to the patient's skin surface, and most medical tapes cannot be reused multiple times, making it inconvenient to adjust the position of the dialysis catheter.

[0004] Therefore, in view of the fact that the fixation of existing dialysis catheters for intrarenal dialysis may cause damage to the patient's skin surface and that it is inconvenient to adjust the fixation position, a dialysis catheter fixation device for intrarenal dialysis can be designed. By using a strap fixation method, the fixation position of the dialysis catheter can be flexibly adjusted, the catheter fixation operation can be carried out conveniently, unnecessary damage to the patient's skin surface can be avoided, and it can be reused multiple times, thereby effectively enhancing the practical value of the device. Utility Model Content

[0005] To overcome the problems that most dialysis catheters used in renal dialysis rely on tape to fix the catheter body, which may cause skin damage to patients after prolonged use, and that medical tape is mostly not reusable, making it inconvenient to adjust the fixation position of the dialysis catheter.

[0006] The technical solution of this utility model is as follows: a dialysis catheter fixing device for intrarenal dialysis, comprising a strap, a buckle, an arc-shaped clamping block, a device plate, an adjusting screw, an adjusting knob, a movable block, a first adjusting component, a guide rail, a connecting block, a connecting rod, a second adjusting component, and an arc-shaped anti-slip layer. A buckle is provided at one end of the strap, a device plate is provided on the outer side of the strap, an adjusting screw is provided on one side of the device plate, an adjusting knob is provided on the outer side of the adjusting screw, a movable block is provided on one side of the adjusting knob, a first adjusting component is provided on one side of the adjusting knob, a guide rail is provided on the inner side of the device plate, a connecting block is provided on the outer side of the guide rail, a connecting rod is provided on the outer side of the connecting block, second adjusting components are provided at both ends of the connecting rod, an arc-shaped clamping block is provided at one end of the connecting block, and an arc-shaped anti-slip layer is provided on the inner side of the arc-shaped clamping block.

[0007] Preferably, by setting the position of the strap fixing device plate, the strap is wrapped around the patient's arm, and the other end of the strap is secured with a buckle, thus fixing the strap to the patient's arm. The dialysis tubing is placed between two sets of arc-shaped clamps. The device plate is used to fix the position of the adjusting screw. The adjusting knob is rotated along the adjusting screw, and the position of the movable block is adjusted by rotating the adjusting knob. The movable block moves the position of the connecting rod, and the moving connecting rod moves the connecting block to slide along the guide rail, thereby flexibly adjusting the distance between the two sets of connecting blocks. The connecting block is used to connect and fix the arc-shaped clamps, so that the arc-shaped clamps can flexibly clamp and fix the dialysis tubing. The arc-shaped anti-slip layer increases the friction between the outer side of the dialysis tubing and the arc-shaped clamps, ensuring stable fixation of the dialysis tubing. This achieves flexible adjustment of the dialysis tubing fixation position, facilitates tubing fixation operations, avoids unnecessary damage to the patient's skin, and allows for multiple reuses, enhancing the practical value of the device.

[0008] Preferably, the device plate is provided with multiple sets, with the adjusting knob and adjusting screw being threadedly connected to each other, the movable block and adjusting screw being slidably connected to each other, and the connecting block and guide rail being slidably connected to each other.

[0009] Preferably, the first adjustment component includes a stop and a T-shaped slider, with a stop provided at one end of the adjustment screw and a T-shaped slider provided on one side of the adjustment knob.

[0010] Preferably, the first adjustment component also includes a T-shaped slide groove, with a T-shaped slide groove provided on one side of the movable block, and the T-shaped slider and the T-shaped slide groove being interlocked and rotatably connected.

[0011] Preferably, the second adjustment component includes a first slide groove, a movable groove, and a first connecting shaft. The first slide groove is provided on one side of the device plate, the movable groove is provided on the inner side of the device plate, and the first connecting shaft is provided at both ends of the movable block.

[0012] Preferably, the second adjustment component also includes a mounting plate, a second connecting shaft, and a second slide groove. The mounting plate is provided on one side of the connecting block, and two sets of mounting plates are symmetrically arranged. The second connecting shaft is provided on one side of the mounting plate, and the second slide groove is provided on the top of the device plate.

[0013] Preferably, the first slide groove and the movable groove are interconnected. Two sets of the first slide groove are symmetrically arranged. The guide rail is set inside the movable groove. The connecting rod moves along the first slide groove. Two sets of the first connecting shaft are symmetrically arranged. One end of the connecting rod is rotatably connected to the first connecting shaft. The second connecting shaft is set between the two sets of mounting plates. The other end of the connecting rod is rotatably connected to the second connecting shaft. Two sets of the second slide groove are symmetrically arranged. The second slide groove and the movable groove are interconnected. The connecting block slides along the second slide groove.

[0014] The beneficial effects of this utility model are:

[0015] When securing the dialysis catheter, wrap the strap around the patient's arm and use the buckle to secure the other end of the strap, thus fixing the strap to the patient's arm. Place the dialysis catheter body between the two sets of arc-shaped clamps on the device plate. Rotate the adjustment knob along the adjustment screw to adjust the position of the movable block. Moving the movable block moves the connecting rod, which in turn moves the connecting block along the guide rail, thereby flexibly adjusting the distance between the two sets of connecting blocks. Use the connecting block to connect and fix the arc-shaped clamps, allowing the arc-shaped clamps to flexibly clamp and fix the dialysis catheter body. The arc-shaped anti-slip layer contacts the outside of the dialysis catheter body to increase friction, solving the problem that most intrarenal dialysis catheters may cause skin damage to the patient during fixation and that adjusting the fixation position is inconvenient, thus enhancing the practical value of the device. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of the dialysis tubing fixing device for intrarenal dialysis according to this utility model.

[0017] Figure 2 The diagram shown is a three-dimensional structural schematic of the device plate of the dialysis tube fixing device for renal dialysis according to this utility model.

[0018] Figure 3 The diagram shown is a three-dimensional structural schematic of the adjustment knob of the dialysis tubing fixing device for renal dialysis according to this utility model.

[0019] Figure 4 The diagram shown is a partial three-dimensional structural schematic of the adjustment component of the dialysis catheter fixing device for renal dialysis according to this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1. Strap; 2. Buckle; 3. Device plate; 301. First slide groove; 302. Movable groove; 303. Second slide groove; 4. Adjusting screw; 401. Stop block; 5. Adjusting knob; 501. T-shaped slider; 6. Movable block; 601. T-shaped slide groove; 602. First connecting shaft; 7. Guide rail; 8. Connecting block; 801. Mounting plate; 802. Second connecting shaft; 9. Connecting rod; 10. Arc-shaped clamping block; 11. Arc-shaped anti-slip layer. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please see Figures 1-4This utility model provides an embodiment of a dialysis catheter fixing device for intrarenal dialysis, comprising a strap 1, a buckle 2, an arc-shaped clamp 10, a device plate 3, an adjusting screw 4, an adjusting knob 5, a movable block 6, a first adjusting component, a guide rail 7, a connecting block 8, a connecting rod 9, a second adjusting component, and an arc-shaped anti-slip layer 11. A buckle 2 is provided at one end of the strap 1, and a device plate 3 is provided on the outer side of the strap 1. Multiple sets of device plates 3 are provided, and an adjusting screw 4 is provided on one side of the device plate 3. An adjusting knob 5 is provided on the outer side of the adjusting screw 4. The knob 5 and the adjusting screw 4 are threaded together. A movable block 6 is provided on one side of the adjusting knob 5, and the movable block 6 is slidably connected to the adjusting screw 4. A first adjusting component is provided on one side of the adjusting knob 5. A guide rail 7 is provided on the inner side of the device plate 3, and a connecting block 8 is provided on the outer side of the guide rail 7. The connecting block 8 is slidably connected to the guide rail 7. A connecting rod 9 is provided on the outer side of the connecting block 8, and a second adjusting component is provided at both ends of the connecting rod 9. An arc-shaped clamping block 10 is provided at one end of the connecting block 8, and an arc-shaped anti-slip layer 11 is provided on the inner side of the arc-shaped clamping block 10.

[0023] Please see Figures 2-4 In this embodiment, the first adjustment component includes a stop block 401, a T-shaped slider 501, and a T-shaped groove 601. The stop block 401 is provided at one end of the adjustment screw 4, the T-shaped slider 501 is provided on one side of the adjustment knob 5, and the T-shaped groove 601 is provided on one side of the movable block 6. The T-shaped slider 501 and the T-shaped groove 601 are interlocked and rotatably connected. The range of motion of the adjustment knob 5 is limited by the stop block 401. Rotating the adjustment knob 5 drives the T-shaped slider 501 to rotate in the T-shaped groove 601, thereby realizing that rotating the adjustment knob 5 drives the movable block 6 to move synchronously.

[0024] The second adjustment assembly includes a first slide groove 301, a movable groove 302, a first connecting shaft 602, a mounting plate 801, a second connecting shaft 802, and a second slide groove 303. The first slide groove 301 is provided on one side of the device plate 3, and two sets of the first slide groove 301 are symmetrically arranged. The connecting rod 9 moves along the first slide groove 301. The movable groove 302 is provided on the inner side of the device plate 3, and the guide rail 7 is located inside the movable groove 302. The first slide groove 301 and the movable groove 302 are interconnected. The movable block 6 has first connecting shafts 602 at both ends, and two sets of the first connecting shafts 602 are symmetrically arranged. One end of the connecting rod 9 is rotatably connected to the first connecting shaft 602. The connecting block 8 has a mounting plate 801 on one side, and two sets of the mounting plates 801 are symmetrically arranged. The second connecting shaft 802 is provided on one side of the mounting plate 801. The second connecting shaft 802 is disposed between the two sets of mounting plates 801. The other end of the connecting rod 9 is rotatably connected to the second connecting shaft 802. The top of the device plate 3 is provided with a second sliding groove 303. Two sets of the second sliding groove 303 are symmetrically provided. The second sliding groove 303 and the movable groove 302 are interconnected. The connecting block 8 slides along the second sliding groove 303. The position of the guide rail 7 is fixed by the movable groove 302. The first sliding groove 301 ensures that the connecting rod 9 passes through the device plate 3. The movable block 6 moves to drive one end of the connecting rod 9 to rotate around the first connecting shaft 602. The position of the second connecting shaft 802 is fixed by the mounting plate 801, so that the other end of the connecting rod 9 rotates around the second connecting shaft 802. Thus, the connecting rod 9 drives the position of the connecting block 8 to move, so that the connecting block 8 slides along the second sliding groove 303, thereby flexibly adjusting the distance between the two sets of arc-shaped clamping blocks 10.

[0025] Before fixing the dialysis tube, wrap the strap 1 around the patient's arm at a suitable position, and use the buckle 2 to lock and fix the other end of the strap 1 so that the strap 1 is fixed to the patient's arm. Place the dialysis tube body between the two sets of arc-shaped clamps 10 on the device plate 3.

[0026] When fixing the dialysis tube, rotate the adjusting knob 5 along the adjusting screw 4 to make the T-shaped slider 501 rotate along the T-shaped groove 601, which will drive the movable block 6 to move along the adjusting screw 4. Rotate the adjusting knob 5 to the side of the stop block 401.

[0027] The movable block 6 is moved, which drives one end of the connecting rod 9 to rotate around the first connecting shaft 602, so that the connecting rod 9 moves along the first sliding groove 301. At the same time, the other end of the connecting rod 9 rotates around the second connecting shaft 802 between the mounting plates 801. The connecting rod 9 pulls the connecting block 8, so that the connecting block 8 slides along the guide rail 7 in the movable groove 302.

[0028] At the same time, the connecting block 8 slides along the second sliding groove 303, merging the two sets of arc-shaped clamping blocks 10, so that the arc-shaped anti-slip layer 11 contacts the outer wall of the dialysis tube, and fixes the dialysis tube between the arc-shaped clamping blocks 10.

[0029] Through the above steps, by setting the position of the fixing device plate 3 of the strap 1, the strap 1 is wrapped around the patient's arm. The other end of the strap 1 is secured with the buckle 2, thus fixing the strap 1 to the patient's arm. The dialysis tubing is placed between the two sets of arc-shaped clamps 10. The device plate 3 is used to fix the position of the adjusting screw 4. The adjusting knob 5 is rotated along the adjusting screw 4. Rotating the adjusting knob 5 adjusts the position of the movable block 6. Moving the movable block 6 moves the position of the connecting rod 9. Moving the connecting rod 9 moves the connecting block 8 along the guide rail 7, thereby flexibly adjusting the distance between the two sets of connecting blocks 8. The connecting block 8 is used to connect and fix the arc-shaped clamps 10, so that the arc-shaped clamps 10 can flexibly clamp and fix the dialysis tubing. The arc-shaped anti-slip layer 11 increases the friction between the outside of the dialysis tubing and the arc-shaped clamps 10, ensuring stable fixation of the dialysis tubing. This allows for flexible adjustment of the dialysis tubing fixation position, facilitating tubing fixation operations, avoiding unnecessary damage to the patient's skin, and allowing for multiple reuses.

[0030] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A dialysis catheter fixing device for intrarenal dialysis, comprising a strap (1), a buckle (2), and an arc-shaped clamp (10), characterized in that: It also includes a device plate (3), an adjusting screw (4), an adjusting knob (5), a movable block (6), a first adjusting assembly, a guide rail (7), a connecting block (8), a connecting rod (9), a second adjusting assembly, and an arc-shaped anti-slip layer (11). One end of the strap (1) is provided with a buckle (2), the outer side of the strap (1) is provided with a device plate (3), one side of the device plate (3) is provided with an adjusting screw (4), and the outer side of the adjusting screw (4) is provided with an adjusting knob (5) for adjusting... A movable block (6) is provided on one side of the knob (5), a first adjustment component is provided on one side of the adjustment knob (5), a guide rail (7) is provided on the inner side of the device plate (3), a connecting block (8) is provided on the outer side of the guide rail (7), a connecting rod (9) is provided on the outer side of the connecting block (8), a second adjustment component is provided at both ends of the connecting rod (9), an arc-shaped clamping block (10) is provided at one end of the connecting block (8), and an arc-shaped anti-slip layer (11) is provided on the inner side of the arc-shaped clamping block (10).

2. The dialysis catheter fixing device for intrarenal dialysis according to claim 1, characterized in that: The device plate (3) is equipped with multiple sets of adjustment knobs (5) and adjustment screws (4) that are threaded together, movable blocks (6) and adjustment screws (4) that are slidably connected together, and connecting blocks (8) and guide rails (7) that are slidably connected together.

3. The dialysis catheter fixing device for intrarenal dialysis according to claim 1, characterized in that: The first adjustment component includes a stop (401) and a T-shaped slider (501). The stop (401) is provided at one end of the adjustment screw (4), and the T-shaped slider (501) is provided on one side of the adjustment knob (5).

4. The dialysis catheter fixing device for intrarenal dialysis according to claim 3, characterized in that: The first adjustment component also includes a T-shaped slide groove (601). A T-shaped slide groove (601) is provided on one side of the movable block (6). The T-shaped slider (501) and the T-shaped slide groove (601) are interlocked and rotatably connected.

5. The dialysis catheter fixing device for intrarenal dialysis according to claim 3, characterized in that: The second adjustment component includes a first slide groove (301), a movable groove (302) and a first connecting shaft (602). The first slide groove (301) is provided on one side of the device plate (3), the movable groove (302) is provided on the inner side of the device plate (3), and the first connecting shaft (602) is provided at both ends of the movable block (6).

6. The dialysis catheter fixing device for intrarenal dialysis according to claim 5, characterized in that: The second adjustment component also includes a mounting plate (801), a second connecting shaft (802), and a second slide groove (303). The mounting plate (801) is provided on one side of the connecting block (8), and two sets of mounting plates (801) are symmetrically arranged. The second connecting shaft (802) is provided on one side of the mounting plate (801), and the second slide groove (303) is provided on the top of the device plate (3).

7. The dialysis catheter fixing device for intrarenal dialysis according to claim 6, characterized in that: The first slide groove (301) and the movable groove (302) are interconnected. The first slide groove (301) has two sets of symmetrical openings. The guide rail (7) is set inside the movable groove (302). The connecting rod (9) moves along the first slide groove (301). The first connecting shaft (602) has two sets of symmetrical openings. One end of the connecting rod (9) is rotatably connected to the first connecting shaft (602). The second connecting shaft (802) is set between the two sets of mounting plates (801). The other end of the connecting rod (9) is rotatably connected to the second connecting shaft (802). The second slide groove (303) has two sets of symmetrical openings. The second slide groove (303) and the movable groove (302) are interconnected. The connecting block (8) slides along the second slide groove (303).