Internal arteriovenous fistula exerciser

Abstract

The utility model relates to the technical field of internal fistula exercisers, in particular to an internal arteriovenous fistula exerciser which comprises an elbow seat, an air bag is arranged on the upper surface of the elbow seat, a grabbing mechanism convenient for a patient to grab and exercise internal fistula is arranged at the front end of the elbow seat, a telescopic groove is formed in the front end of the elbow seat, a telescopic sleeve is inserted into the telescopic groove in a sliding mode, and the telescopic sleeve is connected with the elbow seat. And the connecting frame is inserted into the front end of the telescopic sleeve in a sliding manner. According to the internal arteriovenous fistula exerciser, a one-way air inlet valve is further arranged on an air bag, so that an inflatable cuff is conveniently controlled to expand to extrude arms to promote vasodilation, arteriovenous blood deposition of upper limbs is achieved, and therefore the filling degree of internal fistula blood vessels is increased, and a telescopic sleeve connected to the front end of an elbow seat and a connecting frame are connected with an exerciser body through a rotating rod; meanwhile, the four-finger fixing belt and the thumb fixing belt are arranged on the upper side and the lower side of the exerciser main body, so that patients with different arm lengths can conveniently hold the exerciser main body for exercise.

Description

Technical Field

[0001] This utility model relates to the field of arteriovenous fistula training devices, specifically an arteriovenous fistula training device. Background Technology

[0002] An arteriovenous fistula (AVF) exerciser is a tool used to help patients with AVFs undergo postoperative rehabilitation exercises. After AVF surgery, a period of exercise is needed to promote the expansion and maturation of the fistula vessels. By using an AVF exerciser, blood flow to the arm on the fistula side can be increased, blood circulation can be improved, and the fistula vessels can adapt to the needs of dialysis treatment more quickly.

[0003] The aforementioned device lacks arm-assisted fixation and finger-assisted exercise and limitation structures during use. This means that existing arteriovenous fistula exercisers require a tourniquet to be applied below the elbow and the exerciser to be repeatedly gripped. However, patients with limited mobility find it difficult to apply the tourniquet or cuff themselves when using the exerciser. Furthermore, the exerciser is prone to slipping off the hand when gripping it, and the exercise effect is only achieved when gripped. Based on the shortcomings of existing technology, this utility model designs an arteriovenous fistula exerciser. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides an arteriovenous fistula exercise device that has the advantages of arm-assisted fixation and finger-assisted exercise and limitation.

[0005] This utility model provides the following technical solution: an arteriovenous fistula exerciser, including an elbow seat, an air bladder on the upper surface of the elbow seat, and a gripping mechanism at the front end of the elbow seat to facilitate the patient's gripping and exercise of the fistula.

[0006] The gripping mechanism includes a telescopic groove, a telescopic sleeve, a connecting frame, a fixed frame, a rotating rod, an exerciser body, four-finger fixing straps, and a thumb fixing strap. The telescopic groove is located at the front end of the elbow seat. The telescopic sleeve is slidably inserted into the inside of the telescopic groove. The connecting frame is slidably inserted into the front end of the telescopic sleeve. The fixed frame is fixedly connected between two connecting frames. The rotating rod is fixedly connected to the inner side of the outer ends of the two connecting frames. The exerciser body is fixedly connected between two rotating rods. The four-finger fixing straps are fixedly connected to the exerciser body. The thumb fixing straps are fixedly connected to the exerciser body.

[0007] As a preferred embodiment of this utility model, a support arm is fixedly connected to the upper surface of the elbow seat, an arm rest is fixedly connected to the support arm, an adjustment frame is provided on the upper surface of the elbow seat, and an elbow rest is provided on the adjustment frame.

[0008] As a preferred embodiment of this utility model, a one-way air intake valve is provided on one side of the airbag, a one-way air exhaust valve is provided on the upper surface of the one-way air intake valve, an air intake pipe is inserted and fixedly connected to the one-way air exhaust valve, a deflation valve is fixedly installed on the air intake pipe, and an inflation cuff is fixedly connected to the outer end of the air intake pipe.

[0009] As a preferred embodiment of this utility model, the thumb fixing strap is positioned on the opposite side of the four-finger fixing strap.

[0010] As a preferred embodiment of this utility model, the inflatable cuff is fixedly connected to the inside of the arm support, and a return spring is provided inside the airbag.

[0011] In a preferred embodiment of this invention, the elbow support is positioned in front of the armrest and is movably positioned above the elbow seat.

[0012] As a preferred embodiment of this utility model, the air inlet pipe passes through the armrest and is fixedly connected to the inflatable cuff.

[0013] In a preferred embodiment of this invention, the connecting frame is slidably inserted into the telescopic groove, and the main body of the exerciser is disposed between the two connecting frames. Compared with the prior art, this invention has the following advantages:

[0014] 1. This arteriovenous fistula exercise device involves placing the upper arm inside the arm support and the elbow on the elbow support by passing the hand through the arm support. The expansion of the inflatable cuff compresses the arm. Then, the exercise device body is pulled outward, causing it to extend and retract via a rotating rod, connecting frame, and telescopic sleeve, sliding within the telescopic groove until the position of the exercise device body is aligned with the palm of the arm to be exercised. The exerciser then grasps the exercise device body with the exercise hand, inserting the four fingers (excluding the thumb) into the four-finger fixation straps and fixing the thumb into the thumb fixation straps. At this point, the exerciser can grasp the exercise device body to perform the exercise according to the desired exercise content. When the fingers are spread, the elastic four-finger fixation straps and thumb fixation straps can also extend outward a certain distance to assist the patient in the exercise. This device facilitates fistula exercise for patients.

[0015] 2. This arteriovenous fistula exercise device involves placing the upper arm in the armrest and resting the elbow on the elbow rest, tightening the air release valve, and pressing down on the air bladder. The air inside the air bladder is released through the one-way air release valve and enters the interior of the inflatable cuff through the air inlet tube. After the air inside the air bladder is completely emptied, the internal spring pushes the air bladder to expand, and the one-way air inlet valve draws external air into the air bladder until the air bladder returns to its original position. The inflatable cuff is then inflated again until the inflatable cuff has fully compressed the arm. This device allows patients to control the compression exercise of their arm to promote vasodilation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the main structure of the arteriovenous fistula training device of this utility model;

[0018] Figure 3 This is a schematic diagram of the connection structure between the bearing seat and the airbag of this utility model;

[0019] Figure 4 This is a schematic diagram of the connection structure between the bearing seat and the gripping mechanism of this utility model;

[0020] Figure 5 This is a schematic diagram of the main structure of the exercise device of this utility model.

[0021] In the diagram: 1. Elbow seat; 101. Support arm; 102. Arm rest; 103. Adjustment frame; 104. Elbow rest; 2. Airbag; 201. One-way air inlet valve; 202. One-way air outlet valve; 203. Air inlet pipe; 204. Air release valve; 205. Inflatable cuff; 3. Grip mechanism; 301. Telescopic groove; 302. Telescopic sleeve; 303. Connecting frame; 304. Fixing frame; 305. Rotating rod; 306. Exerciser body; 307. Four-finger fixing strap; 308. Thumb fixing strap. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5 An arteriovenous fistula exerciser includes an elbow seat 1, an air bladder 2 on the upper surface of the elbow seat 1, a gripping mechanism 3 at the front end of the elbow seat 1 for easy gripping and exercising of the fistula by the patient, a support arm 101 fixedly connected to the upper surface of the elbow seat 1, an arm support 102 fixedly connected to the support arm 101, an adjustment frame 103 on the upper surface of the elbow seat 1, an elbow support 104 on the adjustment frame 103, the elbow support 104 being located in front of the arm support 102 and movably positioned above the elbow seat 1.

[0024] Please see Figure 4-5The gripping mechanism 3 includes a telescopic groove 301, a telescopic sleeve 302, a connecting frame 303, a fixing frame 304, a rotating rod 305, an exerciser body 306, a four-finger fixing strap 307, and a thumb fixing strap 308. The telescopic groove 301 is located at the front end of the elbow seat 1. The telescopic sleeve 302 is slidably inserted into the inside of the telescopic groove 301. The connecting frame 303 is slidably inserted into the front end of the telescopic sleeve 302. The fixing frame 304 is fixedly connected between the two connecting frames 303. Rod 305 is fixedly connected to the inner side of the outer end of the two connecting frames 303. Exerciser body 306 is fixedly connected between the two rotating rods 305. Four-finger fixing strap 307 is fixedly connected to exerciser body 306. Thumb fixing strap 308 is fixedly connected to exerciser body 306. Thumb fixing strap 308 is located on the opposite side of four-finger fixing strap 307. Connecting frame 303 is slidably inserted into the inside of telescopic groove 301. Exerciser body 306 is located between the two connecting frames 303.

[0025] By setting up the telescopic groove 301, telescopic sleeve 302, and connecting frame 303, the position of the exerciser body 306 can be adjusted according to the arm length of different patients. By setting up the rotating rod 305 and the exerciser body 306, the position of the exerciser body 306 can be fixed so that the patient will not easily drop the exerciser body 306 from their hand while exercising. By setting up the four-finger fixing strap 307 and the thumb fixing strap 308, the exerciser body 306 can be fixed in the palm of the patient's hand, and the four-finger fixing strap 307 and the thumb fixing strap 308 can be used to assist the patient in exercising when opening their hand.

[0026] Please see Figure 3 One side of the airbag 2 is provided with a one-way air intake valve 201. The upper surface of the one-way air intake valve 201 is provided with a one-way exhaust valve 202. An air intake pipe 203 is inserted and fixedly connected to the one-way exhaust valve 202. An air release valve 204 is fixedly installed on the air intake pipe 203. An inflatable cuff 205 is fixedly connected to the outer end of the air intake pipe 203. The inflatable cuff 205 is fixedly connected to the inside of the arm support 102. A return spring is provided inside the airbag 2. The air intake pipe 203 passes through the arm support 102 and is fixedly connected to the inflatable cuff 205.

[0027] By setting up an airbag 2, a one-way air inlet valve 201, and an air inlet pipe 203, external air is drawn into the airbag 2 and the air in the airbag 2 is delivered to the inflatable cuff 205 to inflate and compress the arm. By setting up a one-way exhaust valve 202, the air inflated into the inflatable cuff 205 is prevented from flowing back into the airbag 2. By setting up a deflation valve 204, the air in the inflatable cuff 205 is discharged.

[0028] Working principle: When an arteriovenous fistula exerciser is used, in the initial state, the arm support 102 is first fixed to the elbow seat 1 via the support arm 101. The elbow support 104, located at the front end of the arm support 102, is connected to the elbow seat 1 via the adjustment frame 103 to provide support for the patient's arm and elbow. The inflatable cuff 205, located inside the arm support 102, is connected to the air inlet pipe 203. The other end of the air inlet pipe 203 is connected to the air bag 2 via the one-way exhaust valve 202. The air bag 2 is also equipped with a one-way valve. An air inlet valve 201 is used to control the expansion of the inflatable cuff 205 to compress the arm and promote vasodilation, causing blood to pool in the arteries and veins of the upper limb, thereby increasing the filling of the arteriovenous fistula. The telescopic sleeve 302 and connecting frame 303 connected to the front end of the elbow seat 1 are connected to the exerciser body 306 via a rotating rod 305. At the same time, four-finger fixing straps 307 and thumb fixing straps 308 are provided on the upper and lower sides of the exerciser body 306 to facilitate patients with different arm lengths to grasp the exerciser body 306 for exercise.

[0029] When a patient needs to perform arteriovenous fistula exercises, first, pass the hand through the arm support 102, placing the upper arm inside the arm support 102 and the elbow on the elbow support 104. Use the expansion of the inflatable cuff 205 to compress the arm. Then, pull the exerciser body 306 outward, causing the exerciser body 306 to extend and retract through the rotating rod 305, pulling the connecting frame 303 and the telescopic sleeve 302, and sliding within the telescopic groove 301 until the position of the exerciser body 306 is the same as the position of the palm of the arm to be exercised. Then, grasp the exerciser body 306 with the exercise hand, insert the four fingers (excluding the thumb) into the four-finger fixation strap 307 for fixation, and insert the thumb into the thumb fixation strap 308 for fixation. At this point, the patient can grasp the exerciser body 306 to perform the exercises according to the content of the exercise. When the fingers are spread, the elastic four-finger fixation strap 307 and thumb fixation strap 308 can also extend outward a certain distance to assist the patient in exercising. This device facilitates arteriovenous fistula exercises for patients.

[0030] When patients need to control the squeezing exercise of their arms to promote vasodilation, first place the upper arm in the arm support 102 and the elbow on the elbow support 104, then tighten the vent valve 204 and press down on the air bladder 2. The air in the air bladder 2 is discharged from the one-way vent valve 202 and enters the interior of the inflatable cuff 205 through the air inlet pipe 203. After the air in the air bladder 2 is completely emptied, the internal spring pushes the air bladder 2 to expand and uses the one-way air inlet valve 201 to draw external air into the air bladder 2 until the air bladder 2 is reset and the inflatable cuff 205 is inflated again until the inflatable cuff 205 has completed the squeezing of the arm. This device allows patients to control the squeezing exercise of their arms to promote vasodilation.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An arteriovenous fistula training device, comprising an elbow seat (1), characterized in that: An airbag (2) is provided on the upper surface of the elbow seat (1), and a gripping mechanism (3) is provided at the front end of the elbow seat (1) to facilitate the patient's gripping and exercise of the arteriovenous fistula. The gripping mechanism (3) includes a telescopic groove (301), a telescopic sleeve (302), a connecting frame (303), a fixing frame (304), a rotating rod (305), an exerciser body (306), a four-finger fixing strap (307), and a thumb fixing strap (308). The telescopic groove (301) is located at the front end of the elbow seat (1). The telescopic sleeve (302) is slidably inserted into the inside of the telescopic groove (301). The connecting frame (303) is slidably inserted into the elbow seat (1). The fixed frame (304) is fixedly connected between the two connecting frames (303) and attached to the front end of the telescopic sleeve (302). The rotating rod (305) is fixedly connected to the inner side of the outer end of the two connecting frames (303). The exerciser body (306) is fixedly connected between the two rotating rods (305). The four-finger fixing strap (307) is fixedly connected to the exerciser body (306). The thumb fixing strap (308) is fixedly connected to the exerciser body (306).

2. The arteriovenous fistula training device according to claim 1, characterized in that: The upper surface of the elbow seat (1) is fixedly connected to a support arm (101), and an arm rest (102) is fixedly connected to the support arm (101). An adjustment frame (103) is provided on the upper surface of the elbow seat (1), and an elbow rest (104) is provided on the adjustment frame (103).

3. The arteriovenous fistula training device according to claim 1, characterized in that: One side of the airbag (2) is provided with a one-way air intake valve (201), and a one-way air exhaust valve (202) is provided on the upper surface of the one-way air intake valve (201). An air intake pipe (203) is inserted and fixedly connected to the one-way air exhaust valve (202). A deflation valve (204) is fixedly installed on the air intake pipe (203). An inflatable cuff (205) is fixedly connected to the outer end of the air intake pipe (203).

4. The arteriovenous fistula training device according to claim 1, characterized in that: The thumb fixing strap (308) is located on the opposite side of the four-finger fixing strap (307).

5. The arteriovenous fistula training device according to claim 3, characterized in that: The inflatable cuff (205) is fixedly connected to the inside of the arm support (102), and a return spring is provided inside the airbag (2).

6. The arteriovenous fistula training device according to claim 2, characterized in that: The elbow support (104) is located in front of the arm support (102) and is movably positioned above the elbow seat (1).

7. The arteriovenous fistula training device according to claim 3, characterized in that: The air inlet pipe (203) passes through the armrest (102) and is fixedly connected to the inflatable cuff (205).

8. The arteriovenous fistula training device according to claim 1, characterized in that: The connecting frame (303) is slidably inserted into the inside of the telescopic groove (301), and the exerciser body (306) is arranged between the two connecting frames (303).

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