Internal arteriovenous fistula exercise device

Abstract

The utility model belongs to the technical field of medical instruments, and particularly relates to an internal arteriovenous fistula exercise device. According to the technology, a cuff and a glove are arranged on the upper arm in a sleeving mode, a first air bag is arranged on the inner side wall of the cuff, an extrusion mechanism for pressing the hand is arranged on the glove, and an inflation mechanism for inflating the first air bag is arranged on the first air bag. According to the internal fistula exerciser, the cuff is sleeved on the upper arm, the glove is sleeved on the finger, the arm is extruded after the first air bag is inflated, and the finger is extruded through the glove, so that pressure is generated at the upper end and the lower end of the arm, internal fistula exercise is completed in a mode of replacing manual pressure, and a traditional internal fistula exercise mode is simplified; through extrusion of the first air bag and the gloves, the patient who cannot exercise by himself or herself can perform internal fistula exercise, the exercise compliance of the patient is improved, and the exercise effect is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, and in particular relates to an arteriovenous fistula training device. Background Technology

[0002] Hemodialysis is the primary treatment for uremia patients, and good vascular access is crucial for ensuring the smooth progress of dialysis treatment. Arteriovenous fistulas (AVFs) are the preferred access for long-term hemodialysis. The maturation of an AVF is a complex process, and fistula training is one of the key steps to promote its maturation. AVFs are hailed as the "lifeline" for dialysis patients because they are directly related to dialysis efficiency. A high-quality AVF can withstand multiple punctures, reducing patient pain and the occurrence of complications. Training can promote fistula maturation, reduce the incidence of complications, and prolong its lifespan.

[0003] Traditional arteriovenous fistula exercise methods include: First, pinching the rubber band with the operated hand: pinch slowly, counting 1, 2, 3, 4 seconds, then slowly releasing, counting 1, 2, 3, 4 seconds, for 10-15 minutes each time, 3-4 times a day; Second, gently pressing the upper arm with your hand or tourniquet until the vein is moderately dilated and filled, then releasing, which can be combined with fist clenching exercises, repeating this process for 10-15 minutes each time, 3-4 times a day; For those with weak hands, family members can assist with arm exercises.

[0004] Current arteriovenous fistula (AVF) exercise methods are often too difficult for elderly or frail patients to complete independently. They also lack the ability to automatically adjust hand grip pressure and quantitative assessment, which can easily lead to insufficient or excessive exercise. Furthermore, patients with insufficient strength or hand diseases require assistance from family members, making the process inconvenient and impacting the work and lives of family members. Moreover, patients currently need to exercise on their own, which some find troublesome, leading them to disregard exercise, be unwilling to persist in exercising, and have a poor awareness of the importance of exercise. Utility Model Content

[0005] The purpose of this invention is to provide an arteriovenous fistula exercise device that simplifies the fistula exercise method, enabling patients who are unable to exercise on their own to perform fistula exercises and improving patient compliance.

[0006] The arteriovenous fistula training device includes a cuff and a glove that are worn on the upper arm. A first air bladder is provided on the inner side of the cuff. A squeezing mechanism is provided on the glove to compress the hand. An inflation mechanism is provided on the first air bladder to inflate it.

[0007] Furthermore, the inflation mechanism includes a main unit, which includes an air pump. The first airbag is connected to the air pump of the main unit via a first hose, and a valve is installed on the first hose.

[0008] Furthermore, the cuff has a strip-like structure, and the two ends of the cuff are connected by Velcro.

[0009] Furthermore, the compression mechanism includes a second airbag, which is fixed to the outside of the glove, forming a sealed cavity between the second airbag and the glove. The cavity is connected to the inflation pump of the main unit through a second hose, and a valve is installed on the second hose.

[0010] Furthermore, the shape of the second airbag is consistent with the shape of the glove.

[0011] Furthermore, the glove has a lower hardness than the second airbag.

[0012] Furthermore, the compression mechanism includes a second hose, the glove has an interlayer, the glove is connected to the air pump of the main unit through the second hose, the second hose is equipped with a valve, and the glove is in a fist shape when inflated, and a binding component for the finger strap is provided on the curved side of the glove.

[0013] Furthermore, the binding components are provided in 14 sets, each located on the finger area of ​​the glove. Each binding component includes two first straps, one end of which is connected to the finger area of ​​the glove, and the other end of which is connected by Velcro.

[0014] Furthermore, the binding component includes finger sleeves for finger insertion, which are connected to the finger portion of the glove.

[0015] Furthermore, the glove has two second straps on the palm side, one end of which is connected to the glove, and the other end of which is connected by Velcro.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] This invention involves placing a cuff on the upper arm and a glove on the fingers. The arm is then compressed by inflating a first airbag, and the fingers are also compressed by the glove. This creates pressure at both ends of the arm, replacing manual pressure to perform arteriovenous fistula (AVF) exercises. This simplifies traditional AVF exercises and allows patients who cannot exercise on their own to perform AVF exercises through the compression of the first airbag and the glove, improving patient compliance and ensuring the effectiveness of the exercises. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is another structural schematic diagram of the present invention;

[0020] Figure 3 for Figure 2A schematic diagram of the right-side structure of a mid-length glove;

[0021] The components in the diagram are named as follows: 1. Main unit; 2. First hose; 3. Cuff; 4. First airbag; 5. Velcro; 6. Glove; 7. Second airbag; 8. Second hose; 9. First strap; 10. Second strap. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0023] This embodiment describes an arteriovenous fistula training device, such as... Figure 1 As shown, it includes a cuff 3 that is fitted onto the upper arm and a glove 6, and the inner wall of the cuff 3 is provided with a first airbag 4.

[0024] The cuff 3 is a strip structure, with both ends connected by Velcro 5. The first airbag 4 is a strip structure, which facilitates the placement of the cuff 3 and the first airbag 4 on the upper arm. When the cuff 3 and the first airbag 4 are on the upper arm, the Velcro 5 is positioned on the back of the arm (triceps muscle), allowing the first airbag 4 to better compress the biceps muscle after inflation. Moreover, the Velcro 5 can be adjusted according to the size of the arm, so that the cuff 3 and the first airbag 4 fit snugly against the patient's upper arm when not inflated.

[0025] The inflation mechanism includes a main unit 1, which includes an air pump, a control circuit, a display screen, and a power supply. The display screen can display parameters such as exercise time. The first airbag 4 is connected to the air pump of the main unit 1 via a first flexible hose 2. A valve is installed on the first flexible hose 2. The air pump is an air pump with a deflation function. The control circuit controls the inflation and deflation time of the air pump, as well as the valves of the first flexible hose 2 and the second flexible hose 8. The control circuit controls the cycle of the air pump and the valves. For example, if the air pump inflates the first airbag 4 in 3 seconds and the second airbag 7 in 2 seconds, then the control circuit controls the air pump to start in 3 seconds, and after 2 seconds... Close the valve on the second hose 8. After 3 seconds, close the valves on the air pump and the first hose 2. After another 3 seconds, open the valves on the first hose 2 and the second hose 8 to deflate the air using the air pump. Then repeat the above steps for inflating the first airbag 4 and the second airbag 7. If the air pump does not have a deflation function, a branch can be connected to the first hose 2. One end of the branch is connected to the first hose 2, and the other end is not connected to anything else. A valve is installed on the branch to deflate the first airbag 4. The second hose 8 is also equipped with a branch and a valve, which allows for automated control of the inflation of the first airbag 4 and the second airbag 7.

[0026] Of course, in some embodiments, the first hose 2 and the second hose 8 can be connected to different air pumps. The different air pumps inflate the first airbag 4 and the second airbag 7 separately. The time it takes for the air pump to start once is the time it takes to fill the first airbag 4 and the second airbag 7. The inflation degree of the first airbag 4 and the second airbag 7 can be controlled by the start time of the air pump, thereby controlling the squeezing force.

[0027] like Figure 1 As shown, a second airbag 7 is fixedly fitted onto the outer side of the glove 6, forming a sealed cavity between the second airbag 7 and the glove 6. This cavity is connected to the air pump of the main unit 1 via a second flexible hose 8. A valve is installed on the second flexible hose 8. By inflating the cavity between the glove 6 and the second airbag 7, the second airbag 7 expands and compresses the glove 6, thus compressing the hand. This entire section constitutes a compression mechanism that compresses the hand inside the glove 6.

[0028] The shape of the second airbag 7 is the same as that of the glove 6. The second airbag 7 is also a glove structure, which is equivalent to putting a glove on the outside of the glove 6. In this way, after the glove 6 and the second airbag 7 are inflated, the second airbag 7 can better compress the glove 6.

[0029] The glove 6 has a lower hardness than the second airbag 7. The second airbag 7 is preferably made of leather, while the glove 6 is made of nylon or polyester fiber. When air is inflated between the glove 6 and the second airbag 7, the glove 6 will expand first, thus allowing the glove 6 to better compress the hand.

[0030] like Figure 2 and Figure 3 As shown, the glove 6 has a sandwich layer and can be composed of two gloves, forming a cavity between the two gloves. The glove 6 is connected to the air pump of the main unit 1 through the second hose 8. A valve is installed on the second hose 8. When the glove 6 is inflated, the cavity is shaped like a clenched fist, which is similar to the shape of existing boxing gloves.

[0031] Each finger section of the glove 6 is equipped with two straps 9. One end of each strap 9 is connected to the finger section of the glove 6, and the other end is connected via Velcro. In use, the patient's back of hand is placed against the curved side of the glove 6, and the fingers are then secured to the glove 6 using the straps 9. The glove 6 is then inflated, causing it to clench into a fist. When the glove 6 deflates, it no longer supports the fingers, leaving the hand in a deflated state. Inflating the glove 6 again causes it to compress the hand, thus in conjunction with the first airbag 4 to perform arteriovenous fistula exercises. This section describes the overall binding assembly between the glove 6 and the finger straps.

[0032] The binding component has 14 groups, corresponding to 14 finger joints. Except for the thumb, which has only two joints, all other fingers have three joints. This allows the patient's fingers to be bound one by one to the finger joints on the glove 6.

[0033] The finger section of the glove 6 is connected to finger sleeves made of rubber. When a finger is inserted into the finger sleeve, it connects to the glove 6. Similarly, when the glove 6 expands, it causes the hand to clench into a fist. This section constitutes another structure of the binding assembly that connects the glove 6 to the finger straps.

[0034] The glove 6 has two second straps 10 on its palm side. One end of each second strap 10 is connected to the glove 6. One second strap 10 is located at the web between the thumb and index finger, and the other second strap 10 is located on the edge of the palm opposite the web. The other ends of the two second straps 10 are connected by Velcro. The second straps 10 connect the patient's palm to the palm side of the glove 6, increasing the connection between the patient's hand and the glove 6. This section, together with the four adjacent sections above, constitutes another structure of the compression mechanism that applies pressure to the hand inside the glove 6.

[0035] The working principle and technical effects of this embodiment:

[0036] In use, the cuff 3 is placed on the upper arm, and then the glove 6 is placed on the patient's hand. The main unit 1 then inflates the first airbag 4 and the second airbag 7, causing them to expand. The expansion of the first airbag 4 compresses the upper arm, while the expansion of the second airbag 7 compresses the fingers. This creates pressure at both ends of the arm. Utilizing the principle of blood flow restriction, the pressure of the first airbag 4 within the cuff 3 blocks venous return, causing arterial blood flow turbulence. This promotes vascular dilation and increases the diameter of the blood vessels, resulting in appropriate dilation and filling of the arteriovenous fistula, achieving the desired effect. The method of applying pressure to the patient achieves a training effect. After the first airbag 4 and the second airbag 7 are inflated for a period of time, they are deflated through the first hose 2 and the second hose 8, and then inflated again. By inflating and deflating the second airbag 7, it is equivalent to clenching and loosening a fist. The first airbag 4 and the second airbag 7 can be used to exercise without the assistance of others. This allows patients who cannot exercise on their own to exercise their arteriovenous fistula, such as the elderly, the weak, or those with hand diseases. The operation is simple and does not require the patient to exercise on their own, thus improving the patient's exercise compliance and the exercise effect.

Claims

1. An arteriovenous fistula training device, comprising a cuff (3) and a glove (6) worn on the upper arm, characterized in that: The inner side of the cuff (3) is provided with a first airbag (4), the glove (6) is provided with a squeezing mechanism that compresses the hand, and the first airbag (4) is provided with an inflation mechanism that inflates it. The extrusion mechanism includes a second hose (8) and a double layer is provided on the glove (6); The glove (6) is connected to the air pump of the main unit (1) through the second hose (8). A valve is installed on the second hose (8), and the glove (6) is in a fist shape when inflated. A binding component for the finger strap is provided on the curved side of the glove (6).

2. The arteriovenous fistula training device according to claim 1, characterized in that: The inflation mechanism includes a main unit (1), which includes an inflation pump. The first airbag (4) is connected to the inflation pump of the main unit (1) through a first hose (2), and a valve is installed on the first hose (2).

3. The arteriovenous fistula training device according to claim 2, characterized in that: The cuff (3) is a strip structure, and the two ends of the cuff (3) are connected by Velcro (5).

4. The arteriovenous fistula training device according to claim 1, characterized in that: The binding components are provided in 14 sets, which are located on the finger parts of the glove (6). The binding components include two first straps (9), one end of each first strap (9) is connected to the finger parts of the glove (6), and the other end of each first strap (9) is connected by Velcro.

5. The arteriovenous fistula training device according to claim 1, characterized in that: The binding component includes a finger sleeve for finger insertion, which is connected to the finger portion of the glove (6).

6. The arteriovenous fistula training device according to claim 4 or 5, characterized in that: The glove (6) has two second straps (10) on the palm side. One end of the two second straps (10) is connected to the glove (6), and the other end of the two second straps (10) is connected by Velcro.

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