Blood filtration pipeline fixing device

By designing a cross-groove structure for the fixing blocks and straps, the problems of environmental constraints and multi-pipeline fixing in the existing technology are solved, achieving stable fixing of multiple pipelines and enhancing the applicability and comfort of the device.

CN224085797UActive Publication Date: 2026-04-07FUWAI HOSPITAL CHINESE ACAD OF MEDICAL SCI & PEKING UNION MEDICAL COLLEGE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-25
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Existing blood filtration tubing fixation devices are limited by their operating environment, making it impossible to fix multiple tubing simultaneously. They are also prone to tubing kinking and poor flow, posing a risk of secondary injury.

Method used

A blood filtration tubing fixing device was designed, comprising a strap, a fixing strip, and a fixing block. The fixing block has a first groove and a second groove that are arranged in a cross pattern. The fixing strip passes through the fixing groove and can accommodate tubing of different sizes and orientations. The strap is used to fix the tubing to the patient's head, arm, or bed rail, thereby achieving stable fixation of multiple tubing.

Benefits of technology

It enables flexible fixing of multiple pipelines, adapting to different positions and sizes, ensuring pipeline stability and safety, reducing stress concentration, and improving applicability and comfort.

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Abstract

The utility model relates to a blood filtration pipeline fixing device, which belongs to the technical field of blood filtration application, and comprises a bandage, a fixing strip and a plurality of fixing blocks, the fixing blocks are fixedly arranged on the bandage, the top of each fixing block is provided with a first groove and a second groove, the first groove and the second groove are distributed in a crossed manner, the fixing blocks are provided with fixing grooves, and the fixing grooves are communicated with the first groove and the second groove. The fixing groove penetrates through the first groove, the fixing strip penetrates through the fixing groove, and one section of the fixing strip is arranged between the fixing block and the bandage. The fixing device can fix pipelines in two directions, and can adapt to pipelines of different sizes for wire arrangement.
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Description

Technical Field

[0001] This utility model belongs to the field of blood filtration application technology, specifically a blood filtration pipeline fixing device. Background Technology

[0002] Hemofiltration tubing is a system of pipes used in hemofiltration therapy to guide blood through extracorporeal circulation. It ensures that the blood is not contaminated or damaged during circulation. During treatment, a fixing device is needed to secure the tubing to ensure that the hemofiltration tubing is stable and does not shift during the treatment. Currently, clamps are generally used to fix the tubing, but this can easily cause the tubing to bend backward and obstruct the flow. The clamps are also large and easy to fall off, and if they slip, they can pull on the tubing and cause secondary injury to the patient.

[0003] Chinese utility model patent CN217472478U discloses a fixing clamping device for blood filtration tubing, including a mounting plate and two vertical plates fixed to the bottom sides of the mounting plate. A horizontal threaded rod is threaded into one of the vertical plates, and a pressing plate is fixed to the end of the horizontal threaded rod. The pressing plate is located between the two vertical plates. The mounting plate is connected to a placement tray via a support rod. A connecting block is provided on the top of the placement tray, and a rotatable rotating disk is fitted inside the connecting block. A fixing shaft is fixed to the center of the bottom end of the rotating disk, and the fixing shaft passes through the side wall of the connecting block and connects to the placement tray. A fixing screw is threaded into the connecting block, and the end of the fixing screw abuts against the rotating disk. However, the above-mentioned prior art requires a clamping and fixing area, which limits its applicability. Moreover, it can only fix one tubing at a time. In blood filtration treatment, multiple tubing needs to be fixed, which this device cannot achieve. Utility Model Content

[0004] The purpose of this invention is to provide a blood filtration tubing fixing device, which solves the problem of limited environment and inability to fix multiple tubing in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A blood filtration tubing fixing device includes a strap, a fixing strip, and a fixing block. The fixing block is fixedly mounted on the strap. The top of the fixing block has a first groove and a second groove, which are intersecting. The fixing block has a fixing groove that passes through the first groove. The fixing strip passes through the fixing groove, and one section of the fixing strip is disposed between the fixing block and the strap.

[0007] Optionally, the number of the first slot is 1, and the number of the second slot is 2-4.

[0008] Optionally, the first groove is an arc-shaped groove with an arcuate radius greater than π, and the second groove is an arc-shaped groove with an arcuate radius greater than π.

[0009] Optionally, the fixing block is a protrusion, with the thickness in the middle being greater than the thickness around the perimeter.

[0010] Optionally, a connecting groove is provided on the first end of the fixing strip, and the second end of the fixing strip passes through the connecting groove.

[0011] Optionally, the fixing block is attached to the strap.

[0012] Optionally, one section of the fixing strip is adhered between the strap and the fixing block.

[0013] Optionally, an elastic pad is provided in the first groove and an elastic pad is provided in the second groove.

[0014] Optionally, the elastic pad is bonded to the inner wall of the first groove, and the elastic pad is bonded to the inner wall of the second groove.

[0015] Optionally, the first groove has rounded corners at its edges, and the second groove has rounded corners at its edges.

[0016] The beneficial effects of this utility model are as follows:

[0017] It can fix pipes in two directions and can accommodate pipes of different sizes for wiring;

[0018] It can be fixed to the patient's head, arm, or bed rail, and is suitable for fixing blood filtration tubing in different locations;

[0019] It can fix multiple pipelines and is limited by grooves, making it simple and convenient to use. Attached Figure Description

[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0021] Figure 1 This is a schematic diagram of the structure of a blood filtration tubing fixing device according to Embodiment 1 of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of a fixing block for a blood filtration pipeline fixing device according to Embodiment 1 of this utility model;

[0023] Figure 3 This is a three-dimensional structural diagram of a blood filtration tubing fixing device according to Embodiment 1 of this utility model, wherein the tubing passes through the second groove;

[0024] Figure 4This is a three-dimensional structural diagram of a blood filtration tubing fixing device according to Embodiment 1 of this utility model, wherein the tubing passes through the first groove;

[0025] Figure 5 This is a schematic diagram of the structure of a blood filtration tubing fixing device according to Embodiment 3 of this utility model;

[0026] Figure 6 This is a schematic diagram of the structure of a blood filtration tubing fixing device of this utility model, which is used for fixing to the head;

[0027] Figure 7 This is a schematic diagram of the structure of a blood filtration tubing fixing device of this utility model, which is used to fix the tubing to a bed rail.

[0028] The components include: 1. Fixing block; 2. First groove; 3. Fixing strip; 4. Strap; 5. Second groove; 6. Fixing groove; 7. Pipeline; 8. Elastic pad; 9. Connecting groove; 10. Bed rail. Detailed Implementation

[0029] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0030] The following detailed description is exemplary and intended to provide further detailed explanation of the present invention. Unless otherwise specified, all technical terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention.

[0031] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element 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. 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 indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] The purpose of this invention is to provide a blood filtration tubing fixing device that can fix multiple tubing of different sizes in any position, making it flexible and convenient to use.

[0033] To achieve the above objectives, the present invention adopts the following technical solution:

[0034] Example 1

[0035] like Figures 1-4 As shown, a blood filtration tubing fixing device includes a strap 4, a fixing strip 3, and a fixing block 1. The fixing block 1 is fixedly mounted on the strap 4. The top of the fixing block 1 has one first groove 2 and two second grooves 5. The first groove 2 extends laterally, and the second grooves 5 extend longitudinally. The first groove 2 passes through the second grooves 5. The fixing block 1 has a fixing groove 6 that passes through both sides of the first groove 2. The fixing strip 3 passes through the fixing groove 6. One section of the fixing strip 3 is positioned between the fixing block 1 and the strap 4. The two ends of the fixing strip 3 are freely tied together to fix the tubing 7 in the first groove 2.

[0036] When using, the strap 4 can be fixed to the patient's head for fixation, wrapped around the bed rails for fixation, or wrapped around the patient's arms, thighs, and waist for fixation.

[0037] The above-described solution is a blood filtration tubing fixing device. Through the combination of straps 4, fixing strips 3, and fixing blocks 1, the blood filtration tubing is effectively fixed, ensuring the stability and safety of the tubing 7 during treatment. The design of the first groove 2 and the second groove 5 on the fixing block 1 provides a flexible fixing method for tubing 7 with different diameters and orientations, enhancing the applicability and versatility of the device. It solves the problems of limited usage environment and small number of fixed tubing 7 in the prior art, and achieves the technical effect of arranging multiple tubing 7 of different sizes.

[0038] As a preferred example of the above embodiment, the first groove 2 is an arc-shaped groove with an arcuate radius greater than π, and the second groove 5 is an arc-shaped groove with an arcuate radius greater than π. The width of the opening of both the first groove 2 and the second groove 5 is smaller than their internal width. This allows pipes 7 of different sizes between the opening width and the diameter of the arc-shaped groove to be placed in the groove, adapting to different sizes. Furthermore, it better conforms to the curved shape of the pipe 7 when it passes through, reducing stress concentration in the pipe 7 during the fixing process and extending the service life of the pipe 7.

[0039] As a preferred example of the above embodiment, the bottom of the fixing block 1 has a clearance groove, and the fixing strip 3 passes through the clearance groove and can be slidably placed between the fixing block 1 and the strap 4.

[0040] As a preferred example of the above embodiment, the fixing block 1 is a protrusion, and the thickness of the middle part is greater than the thickness of the surrounding parts, which enhances the strength and stability of the fixing block 1.

[0041] As a preferred example of the above embodiment, the first end of the fixing strip 3 is provided with a connecting groove, and the second end of the fixing strip 3 passes through the connecting groove, so that the fixing strip 3 can form a ring structure to bind and fix the pipe 7 in the first groove 2, or to wrap around the second groove 5 laterally to fix the pipe 7 in the second groove 5.

[0042] As a preferred example of the above embodiment, one section of the fixing block 1 is pasted onto the strap 4. The fixing block 1 is pasted onto the strap 4, which makes the installation simple and quick, and ensures a tight connection between the fixing block 1 and the strap 4, avoiding loosening or falling off during use.

[0043] As a preferred example of the above embodiment, the fixing strip 3 is fixed between the strap 4 and the fixing block 1. Specifically, the strap 4 is a Velcro structure with a Velcro sub-attachment on one side and a Velcro master-attachment on the other side. The strap 4 can be glued and tied to itself in any position. The bottom of the fixing block 1 is fixedly connected with a Velcro sub-attachment, which is pasted on the Velcro master-attachment on one side of the strap 4. Multiple fixing blocks 1 can be pasted on the strap 4 to accommodate the wiring of multiple pipes 7. Before the fixing block 1 is pasted on the strap 4, the fixing strip 3 is placed at the position to be pasted, and then the fixing block 1 is pasted on the strap 4 to press and fix the fixing strip 3, thereby enhancing the stability of the fixing strip 3 and preventing it from shifting or falling off during use.

[0044] As a preferred example of the above embodiment, the elastic pad is bonded to the inner wall of the first groove 2, and the elastic pad is bonded to the inner wall of the second groove 5.

[0045] As a preferred example of the above embodiment, the first groove 2 has rounded corners at its edges, and the second groove 5 has rounded corners at its edges. This reduces stress concentration in the pipe 7 during the fixing process, prevents the pipe 7 from being damaged due to sharp corners, and also improves the comfort and aesthetics of the device, thereby enhancing the user experience.

[0046] When using, such as Figure 6 As shown, the device is fixed to the patient's head to fix the tube 7. Specifically, the strap 4 is first tied to the patient's head for fixation. As needed, the corresponding number of fixing blocks 1 are pasted and fixed on the strap 4. The tube 7 is passed through the first groove 2 and fixed by binding the tube 7 with the fixing strip, so that the tube 7 passes through the patient's head.

[0047] like Figure 7 As shown, the device can also be fixed to the bed rail 10 to fix the pipe 7. Specifically, the strap 4 is first fixed to the guardrail of the bed rail 10, the fixing block 1 is fixed to the strap 4, and the pipe 7 passes through the second groove 5 to achieve the fixing and turning of the pipe 7.

[0048] The Velcro itself can also be attached to the patient's head for fixation.

[0049] In addition, this device can also be used to fix and steer infusion tubing.

[0050] Example 2

[0051] Example 2: As a preferred example, a blood filtration tubing fixing device includes a strap 4, a fixing strip 3, and a fixing block 1. The fixing block 1 is fixedly mounted on the strap 4. The top of the fixing block 1 has one first groove 2 and four second grooves 5. The first groove 2 extends laterally, and the second grooves 5 extend longitudinally. The first groove 2 passes through the second grooves 5. The fixing block 1 has a fixing groove 6 that passes through both sides of the first groove 2. The fixing strip 3 passes through the fixing groove 6, and one section of the fixing strip 3 is disposed between the fixing block 1 and the strap 4.

[0052] Example 3

[0053] Example 3 As a preferred example, as shown in 5, an elastic pad 8 is provided in the first groove 2 and the second groove 5, which can provide a better buffering effect and reduce the vibration and impact of the pipeline 7 during the fixing process; the elastic pad 8 can also increase the friction between the pipeline 7 and the fixing block 1, and prevent the pipeline 7 from sliding or falling off during the fixing process.

[0054] As a preferred example of the above embodiment, an adjustable tension band is also included. The tension device is disposed on one section of the bandage 4 and is connected by suturing to adjust the tightness of the bandage 4, thereby adapting to patients of different sizes or different fixation needs.

[0055] By adding an adjustable tension band, the tightness of the strap 4 can be adjusted to ensure that the fixation device can securely fix the blood filtration tubing without causing discomfort or pressure to the patient, thus improving the comfort and adaptability of use.

[0056] As a preferred example of the above embodiments, the strap 4 is made of medical-grade elastic material, which has good breathability and skin affinity, ensuring that it will not cause skin allergies or discomfort even after wearing for a long time.

[0057] The choice of medical-grade elastic material ensures the comfort and safety of the strap 4, making it suitable for long-term wear, reducing discomfort caused by the fixation device, and improving the overall treatment experience.

[0058] As a preferred example of the above embodiment, a transparent observation window is also included, which is set above the first groove 2 or the second groove 5 of the fixing block 1, allowing medical staff to directly observe the status of the pipeline 7 without affecting the fixing, such as whether there are problems such as leakage or twisting.

[0059] The transparent observation window design provides medical staff with a convenient monitoring method, allowing them to check the status of the tubing without frequently unfastening the fixation device, thus improving work efficiency and safety.

[0060] As a preferred example of the above embodiments, the fixing block 1 is made of medical materials such as medical plastic, stainless steel, and medical silicone.

[0061] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0062] As is known from common technical knowledge, this utility model can be implemented through other embodiments that do not depart from its spirit or essential characteristics. Therefore, the disclosed embodiments described above are merely illustrative in all respects and are not the only ones. All modifications within the scope of this utility model or its equivalents are included in this utility model.

Claims

1. A blood filtration tubing fixing device, characterized in that, Includes a strap (4), a fixing strip (3), and a fixing block (1). Several fixing blocks (1) are fixedly mounted on the strap (4). The top of the fixing block (1) has a first groove (2) and a second groove (5). The first groove (2) and the second groove (5) are distributed intersectingly. The fixing block (1) has a fixing groove (6) that passes through the first groove (2). The fixing strip (3) passes through the fixing groove (6). One section of the fixing strip (3) is disposed between the fixing block (1) and the strap (4).

2. The blood filtration tubing fixing device as described in claim 1, characterized in that, The number of the first slot (2) is 1, and the number of the second slot (5) is 2-4.

3. The blood filtration tubing fixing device as described in claim 1, characterized in that, The first groove (2) is an arc-shaped groove, and the second groove (5) is an arc-shaped groove.

4. The blood filtration tubing fixing device as described in claim 1, characterized in that, The fixing block (1) is a protrusion, and the thickness of the middle part is greater than the thickness of the surrounding parts.

5. The blood filtration tubing fixing device as described in claim 1, characterized in that, A connecting groove (9) is provided on the first end of the fixing strip (3), and the second end of the fixing strip (3) passes through the connecting groove (9).

6. The blood filtration tubing fixing device as described in claim 1, characterized in that, The fixing block (1) is attached to the strap (4).

7. The blood filtration tubing fixing device as described in claim 1, characterized in that, One section of the fixing strip (3) is fixed between the strap (4) and the fixing block (1).

8. The blood filtration tubing fixing device as described in claim 1, characterized in that, An elastic pad (8) is provided in the first groove (2), and an elastic pad (8) is provided in the second groove (5).

9. A blood filtration tubing fixing device as described in claim 8, characterized in that, The elastic pad (8) is bonded to the inner wall of the first groove (2), and the elastic pad (8) is bonded to the inner wall of the second groove (5).

10. A blood filtration tubing fixing device as described in claim 1, characterized in that, The first groove (2) has rounded corners at its edges, and the second groove (5) has rounded corners at its edges.

Citation Information

Patent Citations

  • Fixing and clamping device for blood filtration pipeline

    CN217472478U