Arm fixing device for intrarenal dialysis patient

By designing an arm fixation device for renal dialysis patients, using pads and strap components to support the hemodialysis catheter, the problem of pain caused by needle tip lifting was solved, thus improving patient comfort and safety.

CN224039693UActive Publication Date: 2026-03-27THE 960TH HOSPITAL OF THE CHINESE PEOPLES LIBERATION ARMY JOINT LOGISTICS SUPPORT FORCE
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-23
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

During treatment, kidney dialysis patients experience pain when the needle tip in their arm sticks up and is pressed against the blood vessel wall. The current high-platform method relies on the skill of medical staff in applying the needle and is prone to causing discomfort.

Method used

Design an arm fixation device for intrarenal dialysis patients, including a pad, a strap assembly, and a positioning element. The device supports the hemodialysis catheter through an arc groove and is fixed with Velcro or magnetic pads, providing soft support and stable positioning, and reducing the contact between the needle tip and the blood vessel.

Benefits of technology

It effectively avoids pain caused by needle tip touching blood vessels, simplifies treatment preparation steps, reduces the risk of infection, and improves treatment efficiency and safety.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224039693U_ABST
    Figure CN224039693U_ABST
Patent Text Reader

Abstract

The utility model provides an arm fixing device for an intrarenal dialysis patient, and relates to the technical field of medical auxiliary instruments, the arm fixing device comprises a protection pad and at least two groups of bridle assemblies bound on an arm, each bridle assembly is composed of a first bridle and a second bridle which are fixed on the protection pad, and the first bridle and the second bridle are fixed on the protection pad. The first bridle and the second bridle are used for fixing the arm by mutually binding or jointly connecting the first bridle and the second bridle with a connecting piece; wherein at least one first bridle is connected with at least one group of cushion blocks, and each cushion block is provided with an arc-shaped groove for lifting a hemodialysis tube. The protection pad is adopted to provide soft support for the arm, so that discomfort or pain possibly caused by keeping the same posture for a long time is reduced; the two ends of the forearm are fixed through the two sets of bridle assemblies subsequently, after the needle penetrates into the skin, the hemodialysis tube is lifted through the cushion block, the needle tip and the indwelling tube are kept balanced, the effect of a high-lift platform method is achieved, and pain caused by the fact that the needle tip touches the blood vessel can be effectively avoided.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to the field of medical assistive device technology, and in particular to an arm fixation device for patients undergoing renal dialysis. Background Technology

[0002] Currently, some kidney dialysis patients experience a dull ache in their arm after a period of dialysis, due to the fixation method used in treatment. Subsequent observation and interventions such as adjusting the needle direction or elevating the arm position provide slight relief, but some discomfort persists. Discussions revealed that the 16G*25cm arteriovenous fistula puncture needle, with the needle wing as the center, causes the portion of the vessel beyond the wing to be compressed, naturally causing the portion before the wing to tilt upwards, much like a seesaw. The tilted side is the needle tip, which is pressed tightly against the vessel wall. After a period of dialysis, as most of the fluid is ultrafiltered and the skin loses elasticity, the patient experiences a dull ache at the needle tip.

[0003] With further research and exploration, it was decided to try using the elevated platform method to fix the hemodialysis catheter, prevent the catheter from being pressed down, keep the needle tip and the catheter in balance, and prevent the needle tip from being in close contact with the blood vessel wall, so the patient would not feel pain.

[0004] While the elevated platform method described above can resolve the issue of arm pain caused by the needle touching a blood vessel, this technique is highly dependent on the skill of the medical staff in applying the ligation. If the ligation height is incorrect, it can still cause discomfort to the patient. Utility Model Content

[0005] This invention aims to at least partially solve one of the technical problems in related technologies. To this end, the present invention proposes an arm fixation device for renal dialysis patients.

[0006] The technical solution to the technical problem solved by this utility model is as follows:

[0007] This utility model proposes an arm fixation device for renal dialysis patients, including a pad; at least two sets of strap assemblies tied to the arm, the strap assembly consisting of a first strap and a second strap fixed on the pad, the first strap and the second strap fixing the arm by interconnection; wherein, at least one first strap is connected to at least one set of pads, the pads having arc-shaped grooves for supporting the hemodialysis tube.

[0008] Preferably, it also includes a positioning element for positioning the hemodialysis catheter on the pad.

[0009] Preferably, the positioning member comprises two magic tape pieces arranged on both sides of the cushion block, and both of the magic tape pieces are fixed on the first belt; and the positioning member further comprises a magic tape band, and both ends of the magic tape band are respectively pasted on the two magic tape pieces to fix the hemodialysis tube in the arc-shaped groove.

[0010] Preferably, the positioning member comprises an upper pressing block, a semicircular groove is arranged at the bottom of the upper pressing block, and the semicircular groove and the arc-shaped groove jointly form a clamping space for positioning the hemodialysis tube; and the opposite side of the upper pressing block and the cushion block is respectively fixed with a magnetic attraction piece, and the upper pressing block and the cushion block are connected through the magnetic attraction pieces.

[0011] Preferably, the upper pressing block and the first belt or the second belt are jointly connected with a connecting rope.

[0012] Preferably, the protective pad is arranged with a plurality of groups of arc-shaped convex strips.

[0013] Preferably, the arc-shaped convex strips are made of sponge or silica gel material.

[0014] Preferably, the protective pad is an electric heating pad.

[0015] Preferably, the two sides of the cushion block are jointly connected with an elastic tightening belt, and the elastic tightening belt is wound on the first belt and / or the second belt.

[0016] Preferably, the bottom of the protective pad is fixed with a female magic tape, and the utility model further comprises a male magic tape fixed on a bed, a table or a seat in a medical room, and the female magic tape and the male magic tape can be pasted and connected with each other.

[0017] The above technical scheme has the following advantages or beneficial effects:

[0018] 1. In the utility model, the protective pad provides soft support for the arm, reduces the discomfort or pain caused by keeping the same posture for a long time; after the two ends of the lower arm are fixed through the two belt assembly components and the needle is pierced into the skin, the hemodialysis tube is lifted by the cushion block to keep the needle tip balanced with the indwelling tube, the effect of the high platform method is achieved, and the pain caused by the needle tip touching the blood vessel can be effectively avoided.

[0019] 2. In the utility model, the female magic tape is fixed below the protective pad, the male magic tape is fixed on the related medical auxiliary facilities, the male magic tape is public, and the female magic tape is private, which can be purchased by oneself, and can be taken home for cleaning and disinfection after use, so that the risk of infection is greatly reduced; and the design can fix the lower arm before treatment, and directly paste and fix the female magic tape on the male magic tape during treatment, so that the preparation steps of treatment are simplified. DRAWINGS

[0020] The accompanying drawings are used to provide further understanding of the present application, and constitute a part of the specification, and are used to explain the present application together with embodiments of the present application, and do not constitute a limitation on the present application.

[0021] Figure 1 is a schematic diagram of a three-dimensional structure of the embodiment one of the present application.

[0022] Figure 2 is a front view of the embodiment one of the present application.

[0023] Figure 3 is a left view of the embodiment one of the present application.

[0024] Figure 4 is a schematic diagram of a three-dimensional structure of the embodiment two of the present application.

[0025] Figure 5 is a schematic diagram of a three-dimensional structure of the embodiment three of the present application.

[0026] Figure 6 is a schematic diagram of a three-dimensional structure of the embodiment four of the present application.

[0027] Figure 7 is a front view of the embodiment four of the present application.

[0028] Explanation of reference signs:

[0029] 1, hemodialysis tube; 2, protective pad; 21, arc-shaped protruding strip; 3, belt assembly; 31, first belt; 32, second belt; 33, connecting piece; 4, pad block; 41, arc-shaped groove; 51a, magic tape piece; 52a, magic tape; 51b, upper pressing block; 52b, semicircular groove; 53b, connecting rope; 6, elastic tightening belt; 7, female magic tape; 8, male magic tape. DETAILED DESCRIPTION

[0030] In order to make the purpose, features and advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the embodiments described below are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0031] It should be noted that, in the description of the present application, the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0032] Furthermore, it should be noted that, in the description of this invention, 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 invention according to the specific circumstances.

[0033] Example 1

[0034] like Figures 1 to 3 As shown, this embodiment proposes an arm fixation device for renal dialysis patients, including a pad 2; at least two sets of strap assemblies 3 for binding the arm, each strap assembly 3 consisting of a first strap 31 and a second strap 32 fixed to the pad 2. The first strap 31 and the second strap 32 are connected to each other to fix the arm, for example, by binding them together or by connecting them together with a connector 33; wherein at least one first strap 31 is connected to at least one set of pads 4, and the pads 4 have arc-shaped grooves 41 for supporting the hemodialysis tube 1. During dialysis treatment, some patients reported that after a period of dialysis treatment, the needle in their arm would feel slightly painful. Through subsequent observation, methods such as adjusting the direction of the needle or raising the hand position were used to treat the symptoms. The symptoms were slightly relieved, but some discomfort still remained. Through discussion, it was found that with a 16G*25cm arteriovenous fistula puncture needle as the center, the part of the tube after the needle wing was compressed, and the part before the needle wing naturally tilted up, just like the seesaw principle. When one side is lowered, the other side naturally rises. The raised side is the needle tip, which is pressed tightly against the blood vessel wall. After the patient has undergone dialysis for a period of time, most of the fluid has been ultrafiltered, and the skin loses elasticity, causing the patient to feel a dull ache at the needle tip. Later, we tried using the elevated platform method to prevent the tubing from being pressed down, keeping the needle tip balanced with the tubing. Since the needle tip was not pressed tightly against the blood vessel wall, the patient no longer felt the pain.

[0035] While the aforementioned elevated platform method can resolve the issue of arm pain caused by the needle touching a blood vessel, this technique is highly dependent on the skill of the medical staff in applying the ligation. If the ligation height is incorrect, it can still cause patient discomfort. Therefore, this device was investigated. The arm is placed on the pad 2, providing soft support and reducing discomfort or pain that may result from maintaining the same posture for extended periods. Then, two sets of strap components 3 secure both ends of the forearm. After the needle is inserted into the skin, the pad 4 supports the hemodialysis catheter 1, maintaining balance between the needle tip and the catheter to prevent the needle from touching a blood vessel and causing pain.

[0036] Further, a positioning member is further included for positioning the hemodialysis tube 1 on the cushion block 4. The positioning member in this embodiment is a common adhesive bandage applied above the cushion block 4 to position the hemodialysis tube 1 and prevent it from sliding off the cushion block 4.

[0037] Further, the connecting member 33 can adopt a sub-mother buckle or a letter magic tape or a waistband buckle member, etc. structure, and the first strap 31 and the second strap 32 are connected through the connecting member 33, and after the two straps are tightened, the fixation of the arm can be realized.

[0038] Further, a plurality of groups of arc-shaped raised strips 21 are arranged on the protective pad 2, and the arc-shaped raised strips 21 are made of sponge or silica gel material. Through this design, necessary support and comfort are ensured, and good ventilation performance is also provided. The arc-shaped raised strips 21 can uniformly disperse pressure and reduce discomfort caused by local compression. It can also effectively promote blood circulation of the arm and provide an ideal support environment for dialysis treatment.

[0039] At the same time, the arc-shaped raised strips 21 cooperate with the protective pad 2 itself, so that the protective pad 2 can be easily rolled up, greatly improving the convenience of storage and carrying. The elastic material of the arc-shaped raised strips 21 allows the protective pad 2 to be tightly rolled up when not in use, occupying a small space and being convenient for patients to carry or store at home.

[0040] In other embodiments, the protective pad 2 is an electric heating pad. The electric heating pad can adopt a dry heating with resistance wire or use a heated hot water bag to generate heat. By increasing the temperature of the protective pad 2, a warm and comfortable support is provided for the patient's arm. After heating, it helps to relax the muscles of the arm and relieve stiffness and discomfort that may be caused by maintaining the same posture for a long time. In addition, appropriate heat can also promote blood circulation and help improve the effectiveness of dialysis treatment and the comfort of patients.

[0041] Further, the two sides of the cushion block 4 are connected with an elastic tightening band 6, and the elastic tightening band 6 is wound on the first strap 31 and / or the second strap 32. This design not only plays a positioning role for the cushion block 4 and ensures the stability of the cushion block 4 during treatment, but also can be adjusted as needed according to the position of the hemodialysis tube 1. By adjusting the elastic tightening band 6, the optimal angle between the cushion block 4 and the hemodialysis tube 1 can be ensured, thereby optimizing the treatment effect. After adjustment, the tightening force of the elastic tightening band 6 can stably position the cushion block 4 to prevent displacement during treatment, ensuring the safety and effectiveness of the treatment.

[0042] Embodiment Two

[0043] As Figure 4As shown, in this embodiment, the positioning component includes Velcro strips 51a disposed on both sides of the pad 4, both Velcro strips 51a being fixed to the first strap 31; it also includes a Velcro cable tie 52a, the two ends of which can be respectively attached to the two Velcro strips 51a to fix the hemodialysis tube 1 in the arc-shaped groove 41.

[0044] In this design, the combination of Velcro 51a and Velcro 52a provides a quick and convenient way to fix the hemodialysis catheter 1, and also allows for flexible adjustment according to the size of the indwelling catheter, reducing local pressure on the hemodialysis catheter 1, thereby avoiding compression of the hemodialysis catheter 1, enhancing its stability and patient comfort.

[0045] Example 3

[0046] like Figure 5 As shown, in this embodiment, the positioning component includes an upper pressure block 51b, and a semi-circular groove 52b is provided at the bottom of the upper pressure block 51b. The semi-circular groove 52b and the arc groove 41 together form a clamping space for positioning the hemodialysis tube 1. Magnetic suction pieces are fixed on the side of the upper pressure block 51b that is opposite to the pad block 4, and the upper pressure block 51b and the pad block 4 are connected by the magnetic suction pieces.

[0047] The magnetic connection between the upper pressure block 51b and the pad 4 ensures precise fixation and stable support of the hemodialysis catheter 1 during treatment, preventing it from moving or sliding and affecting the treatment effect or causing patient discomfort. The use of magnetic pads simplifies the installation and removal process of the upper pressure block 51b, allowing medical staff to easily fix and adjust the indwelling catheter, while also facilitating cleaning and maintenance.

[0048] Furthermore, the upper pressure block 51b is connected to the first strap 31 or the second strap 32 by a connecting rope 53b. The connecting rope 53b serves as a physical connection, ensuring that the upper pressure block 51b is always connected to the strap and will not be lost even when the upper pressure block 51b is removed.

[0049] Example 4

[0050] like Figures 6 to 7 As shown, in this embodiment, the bottom of the pad 2 is fixed with a female Velcro 7, and also includes a male Velcro 8 fixed to the bed, table or chair in the medical room. The female Velcro 7 and the male Velcro 8 can be glued to each other.

[0051] The existing arm fixing device for intradialysis mostly is the public one provided by the hospital. Because of the use of many people, there is the risk of cross infection, especially the spread of skin diseases. In order to solve this problem, the public magic tape 8 is designed to be fixed on the bed, table or chair and other related treatment auxiliary medical facilities in the medical room. The female magic tape 7, the pad 2 and the belt assembly 3 are private. The patient can purchase and use the device by himself, which is convenient for cleaning and disinfection at home, thereby greatly reducing the risk of infection and improving the safety of the treatment process.

[0052] In addition, the design can be fixed before treatment. The female magic tape 7 is directly pasted and fixed on the public magic tape 8 during treatment, which simplifies the preparation steps of treatment. The patient or medical staff does not need to spend a lot of time to install and adjust the fixing device. It only needs to simply paste the female magic tape 7 and the public magic tape 8 together, and the installation of the device can be quickly completed. After the medical staff holds the needle to pierce the skin in the subsequent treatment, the blood dialysis tube 1 is placed in the pad 4, which not only saves time, but also improves the efficiency and safety of the treatment.

[0053] Although the specific embodiments of the application are described above with reference to the drawings, it is not a limitation on the protection scope of the application. Various modifications or changes made by those skilled in the art on the basis of the technical solutions of the application without creative labor are still within the protection scope of the application.

Claims

1. An arm fixation device for an intrarenal dialysis patient, characterized in that The utility model relates to a kind of medical treatment devices, including: A protective pad (2); At least two groups of bandage components (3) tied on arm, the bandage component (3) is made of first bandage (31) and second bandage (32) fixed on protective pad (2), and the first bandage (31) is fixed with second bandage (32) by the way of interconnection; Wherein, at least one first bandage (31) is connected with not less than a group of cushion block (4), and the cushion block (4) is provided with arc slot (41) for lifting hemodialysis tube (1).

2. An arm restraint device for an in-dialysis patient as defined in claim 1, characterized in that: Further comprising positioning member for positioning hemodialysis tube (1) on cushion block (4).

3. An arm restraint device for an in-dialysis patient as defined in claim 2, characterized in that: The positioning member includes magic tape piece (51a) arranged on both sides of cushion block (4), and both magic tape pieces (51a) are fixed on first bandage (31);Further comprising magic ribbon (52a), and both ends of the magic ribbon (52a) can be pasted on two magic tape pieces (51a) respectively, to fix hemodialysis tube (1) in arc slot (41).

4. An arm restraint device for an in-dialysis patient as defined in claim 2, characterized in that: The positioning member includes upper pressing block (51b), and the bottom of the upper pressing block (51b) is provided with semicircular slot (52b), and the semicircular slot (52b) and arc slot (41) jointly form clamping space for positioning hemodialysis tube (1), and the opposite side of the upper pressing block (51b) and cushion block (4) is fixed with magnetic attraction piece, and the upper pressing block (51b) is connected with cushion block (4) by magnetic attraction piece.

5. An arm restraint device for an in-dialysis patient as defined in claim 4, characterized in that: The upper pressing block (51b) and first bandage (31) or second bandage (32) are jointly connected with connecting rope (53b).

6. An arm restraint device for an in-dialysis patient as defined in claim 1, wherein: The protective pad (2) is arranged with a plurality of arc convex strips (21).

7. An arm restraint device for an in-dialysis patient as defined in claim 6, characterized in that: The arc convex strip (21) is made of sponge or silica gel material.

8. An arm restraint device for an in-dialysis patient as defined in claim 1, wherein: The protective pad (2) is an electric heating pad.

9. An arm restraint device for an in-dialysis patient as defined in claim 1, wherein: The two sides of the cushion block (4) are jointly connected with an elastic tightening belt (6), and the elastic tightening belt (6) is wound on the first bandage (31) and / or the second bandage (32).

10. The arm restraint device for an in-dialysis patient as defined in claim 1, wherein: The bottom of the protective pad (2) is fixed with female magic tape (7), and further comprising male magic tape (8) fixed on the bed body, table or seat in medical room, and the female magic tape (7) and the male magic tape (8) can be pasted and connected with each other.