Forearm restraint device for dialysis

Abstract

The utility model relates to the field of medical instruments, in particular to a front arm restraint device for dialysis, which comprises a base, bandages, two groups of U-shaped plates and a limit band, the bandages are arranged on two sides of the base, a sliding groove is arranged at the upper end of the base, a through groove is arranged at the side end of the base, the bottoms of the U-shaped plates slide in the sliding groove, and the limit band is arranged in the through groove. One side of the U-shaped plate is in threaded connection with a fastening bolt penetrating through the through groove, openings are formed in the two sides of the side end of the U-shaped plate, a first fixing block is arranged at the lower end of the opening in one side of the U-shaped plate, a second fixing block is arranged at the lower end of the opening in the other side of the U-shaped plate, the limiting belt comprises an elastic belt and a male hook-and-loop fastener which are integrally connected, one end of the elastic belt is fixed to the first fixing block, and the other end of the elastic belt is fixed to the second fixing block. A female hook-and-loop fastener is fixed to the second fixing block, and the female hook-and-loop fastener is connected with the male hook-and-loop fastener through a hook-and-loop fastener.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, specifically a forearm restraint device for dialysis. Background Technology

[0002] Hemodialysis is a vital treatment for end-stage renal disease patients, allowing them to maintain life. It involves drawing the patient's blood out of the body, passing it through a dialyzer to remove metabolic waste and excess fluid, and then returning it to the body to purify the blood and sustain life. Arteriovenous fistulas (AVFs) are the most commonly used vascular access for hemodialysis patients and are often referred to as their "lifeline." This is achieved through surgical anastomosis of a peripheral artery and a superficial vein, allowing arterial blood to flow into the vein. After approximately 4-8 weeks, the vein becomes arterialized, forming an arteriovenous fistula, which facilitates vascular puncture and provides the necessary blood flow for dialysis.

[0003] Currently, the most common restraint method in clinical practice is to directly restrain the wrist. Hemodialysis patients are a special group, and sudden situations are common during dialysis. Patients may experience dialysis complications such as nausea, vomiting, convulsions, and skin itching. Because the restraint force of direct wrist restraint is weak, it can lead to involuntary body movements, which can cause the fistula needle to shift or fall off, resulting in adverse nursing events such as fistula hematoma.

[0004] Therefore, in order to overcome the shortcomings of the existing technology, it is necessary to design a simple forearm restraint device for dialysis. Utility Model Content

[0005] This invention provides a forearm restraint device for dialysis to address the problems of the prior art.

[0006] The objective of this utility model can be achieved through the following technical solution: A forearm restraint device for dialysis includes: a base, a strap, two sets of U-shaped plates, and a limiting strap. The strap is disposed on both sides of the base. The upper end of the base is provided with a sliding groove, and the side end of the base is provided with a through groove. The bottom of the U-shaped plate slides in the sliding groove. One side of the U-shaped plate is threaded with a fastening bolt passing through the through groove. The side ends of the U-shaped plate are provided with openings on both sides. The lower end of one opening of the U-shaped plate is provided with a fixing block one, and the lower end of the opening on the other side of the U-shaped plate is provided with a fixing block two. The limiting strap includes an elastic band and a male hook-and-loop fastener integrally connected. One end of the elastic band is fixed to the fixing block one, and a female hook-and-loop fastener is fixed to the fixing block two. The female hook-and-loop fastener and the male hook-and-loop fastener are connected by hook and loop fastener.

[0007] In a further improvement, one side of the U-shaped plate is provided with a first insertion hole spaced apart, and the other side of the U-shaped plate is provided with a second insertion hole spaced apart. A first insertion rod matching the first insertion hole is fixed inside the first fixing block, and a second insertion rod matching the second insertion hole is fixed inside the second fixing block.

[0008] In a further improvement, the slide grooves are provided in three sets at intervals, and the bottom of the U-shaped plate is provided with a T-shaped slider that matches the slide grooves.

[0009] As a further improvement, rubber pads are provided on the upper surface of the base and inside the U-shaped plate.

[0010] As a further improvement, the straps are arranged in two sets symmetrically.

[0011] Compared with the prior art, the advantages of this utility model for a forearm restraint device for dialysis are as follows:

[0012] The openings on both sides of the U-shaped plate are respectively equipped with fixing block one and fixing block two. One end of the elastic band of the limiting strap is fixed to fixing block one, and the male hook and loop fastener at the other end is hooked and looped to the female hook and loop fastener on fixing block two. The limiting strap further restricts the range of motion of the patient's arm. The U-shaped plate, together with the pre-tightening limiting strap, can restrain the wrist and elbow of the patient's forearm from both sides at the same time, reducing the range of motion and preventing adverse events such as displacement or dislodgement of the fistula needle due to excessive arm movement.

[0013] The sliding groove at the top of the base and the through groove at the side, together with the sliding of the bottom of the U-shaped plate and the threaded connection of the fastening bolts, allow the U-shaped plate to be flexibly adjusted and fixed on the base. The patient's forearm is placed inside the two sets of U-shaped plates. The movable U-shaped plate can also fully expose the puncture site of the forearm, making it convenient for nurses to perform punctures or remove dialysis needles, and making it easy to observe whether the needle has come out or whether there is bleeding at the puncture site. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of the present invention.

[0015] Figure 2 This is a structural schematic diagram from another perspective of the present invention.

[0016] Figure 3 for Figure 1 Enlarged structural diagram

[0017] Figure 4 for Figure 2 Structural diagram of the enlarged view on the left

[0018] Figure 5 for Figure 2 Structural diagram of the enlarged view on the right

[0019] In the diagram, 1-base, 11-slide groove, 12-through groove, 2-strap, 3-U-shaped plate, 31-fastening bolt, 32-opening, 33-T-shaped slider, 4-limiting band, 41-elastic band, 42-male hook and loop fastener, 43-female hook and loop fastener, 51-fixing block one, 511-insertion rod one, 52-fixing block two, 521-insertion rod two, 61-insertion hole one, 62-insertion hole two, 7-rubber pad. Detailed Implementation

[0020] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0021] 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] The following describes the embodiments and appendices. Figures 1-5 The technical solution of this utility model will be further described below.

[0023] Example 1

[0024] A forearm restraint device for dialysis includes: a base 1, a strap 2, two sets of U-shaped plates 3, and a limiting strap 4. The strap 2 is disposed on both sides of the base 1. The upper end of the base 1 is provided with a sliding groove 11, and the side end of the base 1 is provided with a through groove 12. The bottom of the U-shaped plate 3 slides in the sliding groove 11. One side of the U-shaped plate 3 is threaded with a fastening bolt 31 passing through the through groove 12. The two sides of the side end of the U-shaped plate 3 are provided with openings 32. The lower end of one opening of the U-shaped plate 3 is provided with a fixing block 51, and the lower end of the other opening of the U-shaped plate 3 is provided with a fixing block 52. The limiting strap 4 includes an elastic band 41 and a male hook-and-loop fastener 42 integrally connected. One end of the elastic band 41 is fixed to the fixing block 51, and a female hook-and-loop fastener 43 is fixed to the fixing block 52. The female hook-and-loop fastener 43 and the male hook-and-loop fastener 42 are connected by hook and loop fastener.

[0025] The working principle of this utility model is as follows: the straps are set on both sides of the base to fix the base and play a basic role in fixing it.

[0026] The U-shaped plate has two openings on its sides, one for fixing and one for fixing. One end of the elastic band of the limiting strap is fixed to the first fixing, and the other end of the male hook and loop fastener is hooked to the female hook and loop fastener on the second fixing. The limiting strap further restricts the range of motion of the patient's arm. The U-shaped plate, together with the pre-tightening limiting strap, can restrain the wrist and elbow of the patient's forearm from both sides at the same time, reducing the range of motion and preventing adverse events such as displacement or dislodgement of the fistula needle due to excessive arm movement.

[0027] The sliding groove at the top of the base and the through groove at the side, together with the sliding of the bottom of the U-shaped plate and the threaded connection of the fastening bolts, allow the U-shaped plate to be flexibly adjusted and fixed on the base. The patient's forearm is placed inside the two sets of U-shaped plates. The movable U-shaped plate can also fully expose the puncture site of the forearm, making it convenient for nurses to perform punctures or remove dialysis needles, and making it easy to observe whether the needle has come out or whether there is bleeding at the puncture site.

[0028] As a further preferred embodiment, the U-shaped plate 3 has a first insertion hole 61 spaced apart on one side and a second insertion hole 62 spaced apart on the other side. A first insertion rod 511 matching the first insertion hole 61 is fixed inside the first fixing block 51, and a second insertion rod 521 matching the second insertion hole 62 is fixed inside the second fixing block 52. This allows the restraining strap to be flexibly adjusted on the U-shaped plate according to the specific condition of the patient's arm and the comfort requirements during dialysis. For example, for patients with thicker arms, the restraining strap can be adjusted upwards to bring its restraint position closer to the middle of the arm; for patients with thinner arms, it can be adjusted downwards to make the restraint fit the arm more snugly. Simultaneously, when the patient experiences slight swelling in their arm during dialysis, the position of the restraining strap can be adjusted promptly to ensure appropriate restraint and comfort, further improving the applicability and practicality of the restraint device.

[0029] As a further preferred embodiment, the slide grooves 11 are provided in three sets at intervals, and the bottom of the U-shaped plate 3 is provided with T-shaped sliders 33 that match the slide grooves 11. The design of the three sets of slide grooves provides more sliding support points for the U-shaped plate, making it more stable when adjusting its position and preventing shaking or jamming. The shape design of the T-shaped sliders effectively restricts the movement direction of the U-shaped plate, ensuring that it always slides smoothly along the track of the slide groove, enhancing the overall reliability and durability of the restraint device. During dialysis, even if the patient's arm swings slightly or is subjected to external force, the U-shaped plate is not prone to displacement, thus ensuring the stability and continuity of the restraint on the patient's arm and providing stronger protection for the safe conduct of dialysis treatment.

[0030] As a further preferred embodiment, rubber pads 7 are provided on the upper surface of the base 1 and inside the U-shaped plate 3. The rubber pads significantly improve the comfort of patients using the restraint device and reduce discomfort in the arms caused by prolonged restraint, such as pressure sores. During dialysis, the patient's arms are better protected, avoiding skin damage caused by hard friction or pressure.

[0031] As a further preferred embodiment, the straps 2 are symmetrically arranged in two sets.

[0032] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A forearm restraint device for dialysis, characterized in that, include: The system comprises a base, straps, two sets of U-shaped plates, and a limiting strap. The straps are located on both sides of the base. The upper end of the base has a sliding groove, and the side end of the base has a through groove. The bottom of the U-shaped plate slides within the sliding groove. One side of the U-shaped plate is threaded with a fastening bolt passing through the through groove. The sides of the U-shaped plate have openings. A fixing block one is located at the lower end of one opening of the U-shaped plate, and a fixing block two is located at the lower end of the opening on the other side of the U-shaped plate. The limiting strap includes an integrally connected elastic band and a male hook-and-loop fastener. One end of the elastic band is fixed to the fixing block one, and a female hook-and-loop fastener is fixed to the fixing block two. The female hook-and-loop fastener and the male hook-and-loop fastener are connected by hook and loop fasteners.

2. The forearm restraint device for dialysis according to claim 1, characterized in that, The U-shaped plate has a first insertion hole spaced apart on one side and a second insertion hole spaced apart on the other side. The first fixing block has a first insertion rod that matches the first insertion hole fixed inside, and the second fixing block has a second insertion rod that matches the second insertion hole fixed inside.

3. The forearm restraint device for dialysis according to claim 1, characterized in that, The slide grooves are provided in three sets at intervals, and the bottom of the U-shaped plate is provided with a T-shaped slider that matches the slide grooves.

4. The forearm restraint device for dialysis according to claim 1, characterized in that, Rubber pads are provided on the upper surface of the base and inside the U-shaped plate.

5. A forearm restraint device for dialysis according to claim 1, characterized in that, The straps are arranged in two sets symmetrically.

Images