Internal arteriovenous fistula postoperative exerciser

Abstract

The internal arteriovenous fistula postoperative exerciser comprises an arm support and an exercise ball, the arm support is a cube in the shape of a right trapezoid, an arm positioning groove is formed in the arm support in a sunken mode, and the arm positioning groove comprises an inclined part and a horizontal part; the exercise ball is provided with a mounting hole, the fixing shaft penetrates through the mounting hole of the exercise ball, and the two ends of the fixing shaft are connected with the arm support, so that the exercise ball is positioned in the horizontal part of the arm positioning groove; during use, the arm of a patient is located in the inclined part of the arm positioning groove, the palm of the patient is located in the horizontal part of the arm positioning groove, and the palm center of the palm of the patient faces upwards and just holds the exercise ball. According to the utility model, the exercise enthusiasm of a patient can be improved, the arm blood circulation effect is better, the patient can complete the exercise task according to quality and quantity, the exercise effect is ensured, the arm blood circulation is promoted, the purposes of expanding and thickening the vein wall are achieved, and the vascular access can meet the use requirement during hemodialysis as soon as possible.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology and relates to an exercise device for promoting the maturation of arteriovenous fistulas after surgery. Background Technology

[0002] Before undergoing hemodialysis surgery, hemodialysis patients usually need to have an arteriovenous fistula (AVF) created in advance. The new vascular access created after the surgery can provide sufficient blood for hemodialysis patients during treatment, ensuring the adequacy of dialysis.

[0003] Arteriovenous fistula (AVF) surgery is a minor surgical procedure that involves suturing an artery near the wrist in the patient's forearm to a nearby vein. The anastomosed vein carries arterial blood, increasing venous blood flow and creating an AVF to ensure sufficient blood flow for continuous hemodialysis. However, the blood flow, size, and thickness of the newly formed vascular access after AVF surgery are often insufficient for hemodialysis. Therefore, after AVF surgery, patients need to perform functional exercises, such as clenching their fists and wrist / elbow joint movements, to promote blood circulation in the arm, dilate and thicken the vein walls, and allow the vascular access to reach the required level for hemodialysis as quickly as possible. Utility Model Content

[0004] This invention provides a postoperative exercise device for arteriovenous fistula surgery. The device has a simple structure and is easy to use. It can improve the patient's enthusiasm for exercise and improve the blood circulation in the arm, ensuring that the patient can complete the exercise tasks in a high-quality and high-quantity manner, thus guaranteeing the exercise effect and effectively solving the problems existing in the prior art.

[0005] The technical solution adopted by this utility model to achieve the above-mentioned objective is as follows: a postoperative exercise device for arteriovenous fistula, comprising an arm support and an exercise ball disposed at the front end of the arm support, wherein the exercise ball is positioned on the upper side of the front end of the arm support by a fixed shaft; the arm support is a right-angled trapezoidal cube, and its upper surface is recessed downward to provide an arm positioning groove for placing the arm, the arm positioning groove including an inclined part extending upward and a horizontal part connected to the upper end of the inclined part, the inclined part and the horizontal part being connected by an arc transition; the exercise ball is provided with an exercise component for the patient's hand exercise, the exercise ball has a mounting hole penetrating its axis, the fixed shaft passes through the mounting hole of the exercise ball, and both ends of the fixed shaft are respectively connected to the upper side of the front end of the arm support, thereby positioning the exercise ball in the horizontal part of the arm positioning groove; in use, the patient's arm is located in the inclined part of the arm positioning groove, the patient's palm is located in the horizontal part of the arm positioning groove, and the patient's palm faces upward and just grasps the exercise component of the exercise ball.

[0006] A further technical solution of this utility model is as follows: the exercise component is a fist-clenching exercise component, which includes a fist-clenching exercise button, two springs, a momentary switch, a power supply, a speaker, and a control circuit board; the exercise ball has a mounting cavity for accommodating the fist-clenching exercise button, the springs, and the momentary switch; the fist-clenching exercise button has protruding sliders on both sides, and the inner sidewall of the mounting cavity has grooves corresponding to the sliders, with the upper end of the grooves being a blind end; the fist-clenching exercise button is positioned in the mounting cavity, and the sliders of the fist-clenching exercise button are respectively positioned in the corresponding grooves, so that the fist-clenching exercise button can move up and down in the mounting cavity. The movable fist-clenching exercise button has spring positioning bosses at both ends of its bottom. One end of the spring abuts against the corresponding spring positioning boss, and the other end of the spring abuts against the bottom of the mounting cavity. The jog switch is located at the bottom center of the mounting cavity. When the fist-clenching exercise button is pressed down to its limit, the bottom of the fist-clenching exercise button presses the jog switch. The exercise ball also has a housing for accommodating the power supply, speaker, and control circuit board. The power supply, speaker, and control circuit board are respectively housed in the housing, and the jog switch, power supply, and speaker are electrically connected to the control circuit board.

[0007] A further technical solution of this utility model is as follows: the exercise component is a finger exercise component, which includes four finger exercise buttons, four springs, four momentary switches, a power supply, a speaker, and a control circuit board; the exercise ball has four cylindrical mounting cavities for accommodating the fist exercise buttons, springs, and momentary switches, the four cylindrical mounting cavities being arranged in a straight line and corresponding to the position of the fingers; the finger exercise buttons are cylindrical, and the sides of the finger exercise buttons have protruding sliders, the inner walls of the cylindrical mounting cavities have grooves corresponding to the sliders, the upper ends of the grooves being blind ends, the finger exercise buttons are respectively positioned in the corresponding cylindrical mounting cavities, and the sliding of the finger exercise buttons... The block and the slide groove cooperate to allow the finger exercise button to move up and down in the corresponding cylindrical mounting cavity. The springs are respectively positioned in the corresponding cylindrical mounting cavities, with one end of the spring abutting the lower end of the corresponding finger exercise button and the other end abutting the bottom of the cylindrical mounting cavity. The jog switches are respectively set at the bottom of the corresponding cylindrical mounting cavities. When the finger exercise button is pressed down to its limit stroke, the bottom of the finger exercise button presses the corresponding jog switch. The exercise ball also has a housing for accommodating the power supply, speaker, and control circuit board. The power supply, speaker, and control circuit board are respectively set in the housing, and the four jog switches, the power supply, and the speaker are electrically connected to the control circuit board.

[0008] A further technical solution of this utility model is that the horizontal included angle α of the inclined part is 25°~35°.

[0009] A further technical solution of this utility model is that the surface of the arm positioning groove is covered with a heating layer.

[0010] This utility model provides a postoperative exercise device for arteriovenous fistula surgery, which, due to the above-mentioned structure, has the following beneficial effects:

[0011] 1. When patients use this invention for postoperative exercises, the speaker will play an encouraging and praising prompt tone after each grasping exercise, which can greatly improve the patient's enthusiasm for exercise; at the same time, the control circuit board of this invention also has a counting function. After completing the corresponding number of exercises, the speaker will play a prompt tone to ensure that the patient can complete the exercise task with quality and quantity, guarantee the exercise effect, promote blood circulation in the arm, achieve the purpose of dilating and thickening the vein wall, and enable the vascular access to meet the requirements for use during hemodialysis as soon as possible;

[0012] 2. This utility model allows for alternating gripping exercises of each finger. The muscles involved in each finger gripping exercise are different, which can cause the muscles in various parts of the arm to contract and compress as many small veins as possible, allowing more blood in the small veins to flow back into the large veins, resulting in better blood circulation in the arm.

[0013] The following description, in conjunction with the accompanying drawings and embodiments, further illustrates the present invention's postoperative exercise device for arteriovenous fistula. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a postoperative exercise device for arteriovenous fistula according to this utility model;

[0015] Figure 2 This is a side sectional view of the arm support;

[0016] Figure 3 This is a schematic diagram of the exercise ball in Example 1;

[0017] Figure 4 This is a schematic diagram of the exploded structure of the exercise ball in Example 1;

[0018] Figure 5 This is a schematic diagram of the fist-clenching exercise button in Embodiment 1;

[0019] Figure 6 This is a schematic diagram of the exercise ball in Example 2;

[0020] Figure 7 This is a schematic diagram of the exploded structure of the exercise ball in Example 2. Detailed Implementation Example 1:

[0021] like Figure 1 , Figure 2As shown, this utility model discloses a postoperative exercise device for arteriovenous fistula, including an arm support 1 and an exercise ball 2 disposed at the front end of the arm support 1. The exercise ball 2 is positioned on the upper side of the front end of the arm support 1 by a fixing shaft 3. The arm support 1 is a right-angled trapezoidal cube, and its upper surface is recessed downward to provide an arm positioning groove 11 for placing the arm. The surface of the arm positioning groove 11 is covered with a heating layer, which can be heated by electric heating or by injecting hot water.

[0022] In this invention, the arm positioning groove 11 includes an upwardly extending inclined portion 111 and a horizontal portion 112 connected to the upper end of the inclined portion 111. The horizontal angle α of the inclined portion 111 is between 25° and 35°, and the inclined portion 111 and the horizontal portion 112 are connected by an arc transition. It is worth mentioning that the horizontal angle α of the inclined portion 111 is preferably 30°. When the patient's arm is placed on a 30° inclined surface, the arm is kept in a 30° upward tilt, which can effectively promote blood return and avoid edema.

[0023] The exercise ball 2 is also provided with an exercise component for the patient's hand exercise. The exercise ball 2 has a mounting hole 21 that runs through its axial direction on its central axis. The fixing shaft 3 passes through the mounting hole 21 of the exercise ball 2, and both ends of the fixing shaft 3 are connected to the upper side of the front end of the arm support 1, thereby positioning the exercise ball 2 in the horizontal part 112 of the arm positioning groove 11.

[0024] like Figures 3 to 5As shown, the exercise component in this embodiment is a fist-clenching exercise component 4. The fist-clenching exercise component 4 includes a fist-clenching exercise button 41, two springs 42, a momentary switch 43, a power supply 44, a speaker 46, and a control circuit board 45. The exercise ball 2 has a mounting cavity 22 for accommodating the fist-clenching exercise button 41, the springs 42, and the momentary switch 43. The fist-clenching exercise button 41 has protruding sliders 411 on both sides. The inner wall of the mounting cavity 22 has a groove 221 corresponding to the sliders 411. The upper end of the groove 221 is a blind end. The fist-clenching exercise button 41 is positioned in the mounting cavity 22, and the sliders 411 of the fist-clenching exercise button 41 are respectively positioned in the corresponding grooves 221, so that the fist-clenching exercise button 41 can move up and down in the mounting cavity 22. The bottom of the fist-clenching exercise button 41 is provided with spring positioning bosses 412 at both ends. One end of the spring 42 abuts against the corresponding spring positioning boss 412, and the other end of the spring 42 abuts against the bottom of the mounting cavity 22. The jog switch 43 is located at the bottom of the mounting cavity 22 near the middle. When the fist-clenching exercise button 41 is pressed down to its limit stroke, the bottom of the fist-clenching exercise button 41 presses the jog switch 43. The exercise ball 2 is also provided with a receiving chamber 23 for accommodating the power supply 44, the speaker 46, and the control circuit board 45. The power supply 44, the speaker 46, and the control circuit board 45 are respectively disposed in the receiving chamber 23, and the jog switch 43, the power supply 44, and the speaker 46 are electrically connected to the control circuit board 45.

[0025] During use, the patient's arm is positioned in the inclined portion 111 of the arm positioning groove 11, and the patient's palm is positioned in the horizontal portion 112 of the arm positioning groove 11. The patient's palm faces upward, and the patient's four fingers are clenched into a fist, precisely gripping the fist-clenching exercise button 41 of the exercise ball 2 exercise component. The patient's four fingers clench into a fist and press the fist-clenching exercise button 41, overcoming the elastic force of the spring 42, causing the fist-clenching exercise button 41 to be pressed down to its limit. At this time, the fist-clenching exercise button 41 presses the jog switch 43. After receiving the signal from the jog switch 43, the control circuit board 45 controls the speaker 46 to play a prompt tone. This prompt tone can be encouraging words such as "You're great!" or "Keep it up!" to increase the patient's enthusiasm for exercise. In addition, the control circuit board 45 also has a counting function. After completing the corresponding number of fist clenchings, the control circuit board 45 controls the speaker 46 to play a prompt tone to ensure that the patient can complete the exercise task with quality and quantity, guarantee the exercise effect, promote blood circulation in the arm, achieve the purpose of dilating and thickening the vein wall, and enable the vascular access to meet the requirements for use during hemodialysis as soon as possible. Example 2:

[0026] like Figure 1 , Figure 2As shown, this utility model discloses a postoperative exercise device for arteriovenous fistula, including an arm support 1 and an exercise ball 2 disposed at the front end of the arm support 1. The exercise ball 2 is positioned on the upper side of the front end of the arm support 1 by a fixing shaft 3. The arm support 1 is a right-angled trapezoidal cube, and its upper surface is recessed downward to provide an arm positioning groove 11 for placing the arm. The surface of the arm positioning groove 11 is covered with a heating layer, which can be heated by electric heating or by injecting hot water.

[0027] In this invention, the arm positioning groove 11 includes an upwardly extending inclined portion 111 and a horizontal portion 112 connected to the upper end of the inclined portion 111. The horizontal angle α of the inclined portion 111 is between 25° and 35°, and the inclined portion 111 and the horizontal portion 112 are connected by an arc transition. It is worth mentioning that the horizontal angle α of the inclined portion 111 is preferably 30°. When the patient's arm is placed on a 30° inclined surface, the arm is kept in a 30° upward tilt, which can effectively promote blood return and avoid edema.

[0028] The exercise ball 2 is also provided with an exercise component for the patient's hand exercise. The exercise ball 2 has a mounting hole 21 that runs through its axial direction on its central axis. The fixing shaft 3 passes through the mounting hole 21 of the exercise ball 2, and both ends of the fixing shaft 3 are connected to the upper side of the front end of the arm support 1, thereby positioning the exercise ball 2 in the horizontal part 112 of the arm positioning groove 11.

[0029] like Figure 6 , Figure 7As shown, the exercise component in this embodiment is a finger exercise component 5, which includes four finger exercise buttons 51, four springs 52, four momentary switches 53, a power supply 54, a speaker 56, and a control circuit board 55. The exercise ball 2 has four cylindrical mounting cavities 22 for accommodating the finger exercise buttons 51, springs 52, and momentary switches 53. The four cylindrical mounting cavities 22 are arranged in a straight line and correspond to the positions of the fingers. The finger exercise buttons 51 are cylindrical, and the sides of the finger exercise buttons 51 have protruding sliders 511. The inner walls of the cylindrical mounting cavities 22 have grooves 221 corresponding to the sliders 511. The upper end of the grooves 221 is a blind end. The finger exercise buttons 51 are respectively positioned in the corresponding cylindrical mounting cavities 22, and the sliders 511 and grooves 221 of the finger exercise buttons 51 are aligned. The 21 components work together to allow the finger exercise button 51 to move up and down within the corresponding cylindrical mounting cavity 22. The springs 52 are positioned within the corresponding cylindrical mounting cavities 22, with one end of the spring 52 resting against the lower end of the corresponding finger exercise button 51 and the other end resting against the bottom of the cylindrical mounting cavity 22. The momentary switches 53 are respectively located at the bottom of the corresponding cylindrical mounting cavities 22. When the finger exercise button 51 is pressed down to its maximum travel, the bottom of the finger exercise button 51 presses the corresponding momentary switch 53. The exercise ball 2 also has a receiving compartment 3 for accommodating the power supply 54, speaker 56, and control circuit board 55. The power supply 54, speaker 56, and control circuit board 55 are respectively located within the receiving compartment 23, and the four momentary switches 53, power supply 54, and speaker 56 are electrically connected to the control circuit board 55.

[0030] In use, the patient's arm is positioned in the inclined portion 111 of the arm positioning groove 11, and the patient's palm is positioned in the horizontal portion 112 of the arm positioning groove 11. The patient's palm faces upward and is precisely gripping the exercise ball 2. Simultaneously, the patient's four fingers correspond to the four finger exercise buttons 51. The patient's fingers press the corresponding finger exercise buttons 51, overcoming the elastic force of the spring 52, causing the finger exercise buttons 51 to be pressed down to their maximum travel. At this point, the finger exercise buttons 51 press the corresponding momentary switch 53. After receiving the signal from the momentary switch 53 pressed by the current finger, the control circuit board 55 controls the speaker 56 to play a prompt tone. This prompt tone can be encouraging and praising words such as "You're great!" or "Keep it up!" This method enhances the patient's motivation to exercise by repeatedly performing grasping exercises on each finger individually. This individual finger grasping exercise causes the muscles in various parts of the arm to contract and compress as many small veins as possible, allowing blood to flow back into the larger veins, thus improving blood circulation in the arm. In addition, the control circuit board 55 has a counting function, counting the number of grasps for each finger. After each finger completes its corresponding number of grasps, the control circuit board 55 controls the speaker 56 to play a prompt tone, ensuring that the patient completes the exercise task with quality and quantity, guaranteeing the exercise effect, promoting blood circulation in the arm, and achieving the goal of dilating and thickening the vein walls, so that the vascular access can quickly meet the requirements for hemodialysis.

[0031] The above embodiments are merely preferred embodiments of this utility model. The structure of this utility model is not limited to the forms listed in the above embodiments. Any modifications, equivalent substitutions, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A postoperative exercise device for arteriovenous fistula surgery, comprising an arm support and an exercise ball disposed at the front end of the arm support, the exercise ball being positioned on the upper side of the front end of the arm support via a fixed axis; characterized in that: The arm support is a right-angled trapezoidal cube with a downward-recessed upper surface providing an arm positioning groove for placing the arm. The arm positioning groove includes an upwardly extending inclined portion and a horizontal portion connected to the upper end of the inclined portion, with the inclined portion and the horizontal portion connected by an arc transition. The exercise ball is provided with an exercise component for the patient's hand exercise. The exercise ball has a mounting hole that passes through its axis, and a fixing shaft passes through the mounting hole of the exercise ball. Both ends of the fixing shaft are connected to the upper side of the front end of the arm support, thereby positioning the exercise ball in the horizontal portion of the arm positioning groove. In use, the patient's arm is located in the inclined portion of the arm positioning groove, the patient's palm is located in the horizontal portion of the arm positioning groove, and the patient's palm faces upward and just grasps the exercise component of the exercise ball.

2. The postoperative exercise device for arteriovenous fistula according to claim 1, characterized in that: The exercise component is a fist-clenching exercise component, which includes a fist-clenching exercise button, two springs, a momentary switch, a power supply, a speaker, and a control circuit board. The exercise ball has a mounting cavity for accommodating the fist-clenching exercise button, springs, and momentary switch. The fist-clenching exercise button has raised sliders on both sides. The inner wall of the mounting cavity has corresponding grooves for the sliders, with the upper end of the grooves being blind. The fist-clenching exercise button is positioned in the mounting cavity, and its sliders are positioned in the corresponding grooves, allowing the fist-clenching exercise button to move up and down within the mounting cavity. Spring positioning bosses are located at both ends of the bottom of the fist-clenching exercise button, with one end of the spring abutting against the corresponding spring positioning boss and the other end abutting against the bottom of the mounting cavity. The momentary switch is located at the bottom center of the mounting cavity. When the fist-clenching exercise button is pressed down to its limit, the bottom of the button presses the momentary switch. The exercise ball also has a receiving compartment for accommodating the power supply, speaker, and control circuit board. The power supply, speaker, and control circuit board are respectively housed in the receiving compartment, and the momentary switch, power supply, and speaker are electrically connected to the control circuit board.

3. The postoperative exercise device for arteriovenous fistula according to claim 1, characterized in that: The exercise component is a finger exercise component, which includes four finger exercise buttons, four springs, four momentary switches, a power supply, a speaker, and a control circuit board. The exercise ball has four cylindrical mounting cavities for accommodating the fist-clenching exercise buttons, springs, and momentary switches. These four cylindrical mounting cavities are arranged in a straight line and correspond to the positions of the fingers. Each finger exercise button is cylindrical, with a protruding slider on its side. The inner wall of each cylindrical mounting cavity has a groove corresponding to the slider, with a blind end at the top. Each finger exercise button is positioned within its corresponding cylindrical mounting cavity, and the slider of the finger exercise button engages with the groove to... The finger exercise buttons can move up and down in the corresponding cylindrical mounting cavities. The springs are respectively positioned in the corresponding cylindrical mounting cavities, with one end of the spring abutting the lower end of the corresponding finger exercise button and the other end abutting the bottom of the cylindrical mounting cavity. The jog switches are respectively set at the bottom of the corresponding cylindrical mounting cavities. When the finger exercise button is pressed down to its limit stroke, the bottom of the finger exercise button presses the corresponding jog switch. The exercise ball also has a housing for accommodating the power supply, speaker, and control circuit board. The power supply, speaker, and control circuit board are respectively set in the housing, and the four jog switches, the power supply, and the speaker are electrically connected to the control circuit board.

4. The postoperative exercise device for arteriovenous fistula according to claim 1, characterized in that: The horizontal included angle α of the inclined part is 25°~35°.

5. The postoperative exercise device for arteriovenous fistula according to claim 1, characterized in that: The surface of the arm positioning groove is covered with a heating layer.

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