Arm fixing device for internal arteriovenous fistula operation of patient subjected to renal dialysis

Abstract

The utility model relates to the technical field of medical auxiliary equipment, and provides an arm fixing device for an internal arteriovenous fistula operation of an intrarenal dialysis patient, which comprises a sheath I and a workbench, the inner surface of the sheath I is movably sleeved with a sheath II, the outer surface of the sheath II is fixedly connected with a slide block I, and the slide block II is fixedly connected with a slide block II. A first sliding groove is formed in the side, close to the first sliding block, of the first protective sleeve, a notch is formed in the outer surface of the second protective sleeve, a second sliding block is movably embedded in the inner surface of the notch, and a spring and a working rod are fixedly connected to the outer surface of the second sliding block. The problems that an arm fixing device cannot fix all arms, a patient may feel uncomfortable after an operation, and the arms are prone to displacement or sprain are solved, meanwhile, the situation that the arms cannot rotate, stress and stretching of an operation area and surrounding tissue in the operation process are increased is avoided, and the injury risk of operation on the patient is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of medical auxiliary equipment, in particular to an arm fixing device for arteriovenous fistula surgery of intrarenal dialysis patients. Background Art

[0002] The arm immobilization device provides stability, protection, and comfort for intrarenal dialysis patients after arteriovenous fistula surgery, helping to ensure proper function and continued patency of the fistula.

[0003] In the prior art, for example, Chinese patent publication number: CN220442744U, "An arm fixing device for arteriovenous fistula surgery for patients undergoing intrarenal dialysis", comprises a fixing pad, an adjustable pipe clamp is slidably connected to the fixing pad, a fixing groove is provided on one side of the fixing pad, a fixing plate is provided on the upper side of the fixing groove, the fixing plate is rotatably connected to the fixing pad, a fixing belt is installed between the fixing plate and the fixing pad, and an adjusting pad is rotatably connected to the front side of the fixing pad, which effectively solves the problem that there is no device for fixing the arm during the arteriovenous fistula surgery, and the patient's arm is easy to move during the operation, which affects the operation of medical staff and wastes treatment time.

[0004] Although the above scheme has the advantages as mentioned above, the disadvantage of the above scheme is that due to the different levels of physical development of patients, the lengths of their arms are also different, resulting in the arm fixation device being unable to fix the entire arm when used, causing the patient to feel uncomfortable after the operation, and the arm is easily displaced or sprained, which may delay the process of wound healing and fistula formation. In addition, the above scheme cannot rotate the arm, which increases the stress and stretching of the surgical area and surrounding tissues during the operation, and increases the risk of injury to the patient during the surgical operation. Utility Model Content

[0005] The purpose of the utility model is to solve the problem in the prior art that due to the different levels of physical development of patients, the lengths of patients' arms are also different, resulting in the arm fixation device being unable to fix the entire arm when using it, causing the patient to feel uncomfortable after the operation, and the arm is easily displaced or sprained, which may delay the process of wound healing and fistula formation, and the above-mentioned scheme cannot rotate the arm, which increases the stress and stretching of the surgical area and surrounding tissues during the operation, and increases the risk of injury to the patient during the surgical operation.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an arm fixation device for arteriovenous fistula surgery on patients undergoing intrarenal dialysis, comprising: a sheath 1, and also comprising: a workbench, the inner surface of the sheath 1 is movably sheathed with a sheath 2, the outer surface of the sheath 2 is fixedly connected with a slider 1, the side of the sheath 1 close to the slider 1 is provided with a slide groove 1, the outer surface of the sheath 2 is provided with a notch, the inner surface of the notch is movably embedded with a slider 2, the outer surface of the notch is fixedly connected with a spring and a working rod, the side of the sheath 1 close to the working rod is provided with a slide groove 2, the side of the working rod away from the slider 2 is fixedly connected with a tooth plate 1, and the side of the tooth plate 1 away from the working rod is fixedly connected with a pull rod 1, so as to avoid the arm fixing device being unable to fix all arms due to the different lengths of the patients' arms, which may cause the patients to feel uncomfortable after the operation.

[0007] As a preferred embodiment, the outer surface of the sheath one is provided with two slide grooves three and a plurality of tooth grooves, and the inner surfaces of the two slide grooves three are movably embedded with sliders three, thereby preventing the arm from being unable to rotate and increasing the stress and stretching of the surgical area and surrounding tissues during the operation.

[0008] As a preferred embodiment, the sleeve 1 is fixedly connected to one side close to the slide groove 2 with two tooth plates 2, and the working rod is movably embedded in the inner surface of the slide groove 2. The slide groove 2 11 can limit the movement trajectory of the working rod 8 to avoid derailment of the working rod 8.

[0009] As a preferred embodiment, the slider 1 is movably embedded in the inner surface of the slide groove 1, and the side of the spring away from the slider 2 is fixedly connected to the inner wall of the slot, and the slide groove 1 4 can limit the slider 1 3 to avoid derailment of the slider 1 3.

[0010] As a preferred embodiment, the outer surfaces of the two sliding blocks 3 are fixedly connected with fixing plates, and the two fixing plates are fixedly connected to the outer surface of the workbench, and the workbench 23 can support the fixing plates 16.

[0011] As a preferred embodiment, the outer surfaces of the two fixed plates are provided with limiting grooves, and the inner surfaces of the two limiting grooves are movably embedded with two limiting blocks. The limiting grooves 17 can limit the limiting blocks 18 to avoid derailment of the limiting blocks 18.

[0012] As a preferred embodiment, two limiting rods are fixedly connected to the outer surfaces of the opposite sides of the two limiting blocks, and the outer surfaces of the two limiting rods are fixedly connected to pull rod 22, which can provide power for the movement of the limiting rod 21.

[0013] As a preferred embodiment, the outer surfaces of the two opposite sides of the two fixing plates are fixedly connected with fixing rods, and the outer surfaces of the fixing rods are movably sleeved with gears, and the fixing rods 19 can position the gears 20.

[0014] Compared with the prior art, the advantages and positive effects of the utility model are:

[0015] 1. When using the utility model, the patient's arm is first inserted into the sheath 1 and the sheath 2, and then the pull rod 10 is manually pulled to drive the tooth plate 9 to leave the two tooth plates 2 12. At this time, the two tooth plates 2 12 are not engaged with the tooth plate 9, and as the tooth plate 9 is pulled, the tooth plate 9 drives the slider 2 6 in the slot 5 to move through the working rod 8. The movement of the slider 2 6 will squeeze the spring 7, so that the spring 7 obtains elastic potential energy, and then the sheath 2 is manually pulled to make the slider 3 on the sheath 2 2 move in the sheath 1 The inner surface of the slide groove 4 on the upper part moves, and the working rod 8 moves on the inner surface of the slide groove 2 11, and finally the sheath 2 completely wraps the patient's arm, and then the pull rod 10 is released, and the spring 7 releases the elastic potential energy, so that the slider 2 6 drives the tooth plate 9 to move through the working rod 8, so that the tooth plate 9 is engaged with the tooth plate 2 12, thereby realizing the extension of the fixing device, avoiding the problem that the arm fixing device cannot fix the entire arm due to the different lengths of the patient's arms, causing the patient to feel uncomfortable after the operation and the arm is easily displaced or sprained.

[0016] 2. In the utility model, when the arm needs to be rotated, the pull rod 22 is manually pulled to make the pull rod 22 drive the two limit rods 21 to move. At this time, the two limit rods 21 are no longer stuck on the surface of the gear 20, and the two limit rods 21 drive the two limit blocks 18 to move on the inner surface of the limit grooves 17 on the two fixing plates 16. Because the gear 20 is engaged with the multiple tooth grooves 14 on the sheath 1, when the sheath 1 and the sheath 2 are manually rotated, the presentation surface of the arm is changed, and the gear 20 is driven to do the fixing rod 1. 9 is the center of the arc rotation, and the two sliders 3 15 also move on the inner surfaces of the two slide grooves 3 13. When the angle of the arm is appropriate, the pull rod 22 is manually pushed to make the two limit rods 21 limit the gear 20 again, thereby avoiding the continued rotation of the arm. The workbench 23 can fix the two fixed plates 16, providing a good working environment for the two fixed plates 16, avoiding the inability of the arm to rotate, increasing the stress and stretching of the surgical area and surrounding tissues during the operation, and reducing the risk of injury to the patient during the surgical operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main structure of an arm fixation device for arteriovenous fistula surgery for intrarenal dialysis patients provided by the utility model;

[0018] Figure 2This is a schematic diagram of the exploded structure of an arm fixation device for arteriovenous fistula surgery for intrarenal dialysis patients provided by the utility model;

[0019] Figure 3 A schematic diagram of the position structure of a slideway of an arm fixing device for arteriovenous fistula surgery for a renal dialysis patient provided by the utility model;

[0020] Figure 4 A schematic diagram of a slider-position structure of an arm fixing device for arteriovenous fistula surgery for a renal dialysis patient provided by the utility model;

[0021] Figure 5 The utility model provides an arm fixing device for arteriovenous fistula surgery of a renal dialysis patient. Figure 4 Schematic diagram of the enlarged structure at point A in the middle.

[0022] Legend:

[0023] 1. Sheath 1; 2. Sheath 2; 3. Slider 1; 4. Slide 1; 5. Notch; 6. Slider 2; 7. Spring; 8. Working rod; 9. Tooth plate 1; 10. Pull rod 1; 11. Slide 2; 12. Tooth plate 2; 13. Slide 3; 14. Tooth groove; 15. Slider 3; 16. Fixed plate; 17. Limiting groove; 18. Limiting block; 19. Fixed rod; 20. Gear; 21. Limiting rod; 22. Pull rod 2; 23. Workbench. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-5The utility model provides a technical solution: an arm fixing device for arteriovenous fistula surgery of an intrarenal dialysis patient, comprising: a sheath 1, and also comprising: a workbench 23, a sheath 2 is movably sheathed on the inner surface of the sheath 1, a slider 3 is fixedly connected to the outer surface of the sheath 2, a slide groove 4 is provided on the side of the sheath 1 close to the slider 3, a notch 5 is provided on the outer surface of the sheath 2, a slider 6 is movably embedded on the inner surface of the notch 5, a spring 7 and a working rod 8 are fixedly connected to the outer surface of the slider 6, a slide groove 2 11 is provided on the side of the sheath 1 close to the working rod 8, a tooth plate 9 is fixedly connected to the side of the working rod 8 away from the slider 2 6, and a pull rod 10 is fixedly connected to the side of the tooth plate 9 away from the working rod 8, so as to avoid the problem that the arm fixing device cannot fix all arms due to the different lengths of the patients' arms, which may cause the patients to feel uncomfortable after the operation and the arms are easily displaced or sprained.

[0026] like Figure 1-5 As shown, the outer surface of the sheath 1 is provided with two slide grooves 3 13 and a plurality of tooth grooves 14, and the inner surfaces of the two slide grooves 3 13 are movably embedded with sliders 3 15, which prevents the arm from being unable to rotate, increases the stress and stretching of the surgical area and surrounding tissues during the operation, and reduces the risk of injury to the patient during the surgical operation.

[0027] like Figure 1-5 As shown, two tooth plates 2 12 are fixedly connected to one side of the sheath 1 close to the slide groove 2 11, and the working rod 8 is movably embedded in the inner surface of the slide groove 2 11. The slide groove 2 11 can limit the movement trajectory of the working rod 8 to avoid derailment of the working rod 8 and affect the use of the equipment.

[0028] like Figure 1-5 As shown, the slider 3 is movably embedded in the inner surface of the slide groove 4, and the spring 7 is fixedly connected to the inner wall of the slot 5 on the side away from the slider 2 6. The slide groove 4 can limit the slider 3 to avoid derailment of the slider 3 and affect the use of the equipment.

[0029] like Figure 1-5 As shown, the outer surfaces of the two sliding blocks 15 are fixedly connected with fixing plates 16 , and the two fixing plates 16 are fixedly connected to the outer surface of the workbench 23 . The workbench 23 can support the fixing plates 16 and provide a good working environment for the fixing plates 16 .

[0030] like Figure 1-5 As shown, the outer surfaces of the two fixing plates 16 are provided with limiting grooves 17, and the inner surfaces of the two limiting grooves 17 are movably embedded with two limiting blocks 18. The limiting grooves 17 can limit the limiting blocks 18 to avoid derailment of the limiting blocks 18 and affect the use of the equipment.

[0031] like Figure 1-5As shown, two limiting rods 21 are fixedly connected to the outer surfaces of the opposite sides of the two limiting blocks 18, and the outer surfaces of the two limiting rods 21 are fixedly connected to the second pull rod 22, which can provide power for the movement of the limiting rod 21 to move the limiting rod 21.

[0032] like Figure 1-5 As shown, the outer surfaces of the opposite sides of the two fixing plates 16 are fixedly connected with fixing rods 19 , and the outer surfaces of the fixing rods 19 are movably sleeved with gears 20 . The fixing rods 19 can position the gears 20 and provide a good working environment for the gears 20 .

[0033] Working principle: This device is an arm fixing device for arteriovenous fistula surgery of patients undergoing intrarenal dialysis. When in use, first insert the patient's arm into sheath 1 and sheath 2 2, then manually pull the pull rod 10 to make the pull rod 10 drive the tooth plate 1 9 to leave the two tooth plates 2 12. At this time, the two tooth plates 2 12 are not engaged with the tooth plate 1 9, and as the tooth plate 1 9 is pulled, the tooth plate 1 9 drives the slider 2 6 in the slot 5 to move through the working rod 8. The movement of the slider 2 6 will squeeze the spring 7, so that the spring 7 obtains elastic potential energy, and then the sheath is manually pulled. The second 2 makes the slider 3 on the sheath 2 move on the inner surface of the slide groove 4 on the sheath 1, and the working rod 8 moves on the inner surface of the slide groove 11, and finally the sheath 2 completely wraps the patient's arm, and then the pull rod 10 is released, the spring 7 releases the elastic potential energy, and the slider 26 drives the tooth plate 9 to move through the working rod 8, so that the tooth plate 9 is engaged with the tooth plate 2 12, so as to achieve the extension of the fixing device, and avoid the different arm lengths of the patients, which makes the arm fixing device unable to fix all the arms, causing the patient to feel pain after the operation. In order to avoid discomfort, the arm is easily displaced or sprained, when the arm needs to be rotated, the pull rod 22 is manually pulled to make the pull rod 22 drive the two limit rods 21 to move. At this time, the two limit rods 21 are no longer stuck on the surface of the gear 20, and the two limit rods 21 drive the two limit blocks 18 to move on the inner surface of the limit grooves 17 on the two fixing plates 16. Because the gear 20 is engaged with the multiple tooth grooves 14 on the sheath 1, when the sheath 1 and the sheath 2 are manually rotated, the presentation surface of the arm is changed, and the gear 20 is driven to move. The circular arc rotation with the fixed rod 19 as the center also causes the two sliders three 15 to move on the inner surfaces of the two slide grooves three 13. When the angle of the arm is appropriate, the pull rod 22 is manually pushed to make the two limit rods 21 limit the gear 20 again, thereby preventing the arm from continuing to rotate. The workbench 23 can fix the two fixed plates 16, providing a good working environment for the two fixed plates 16, avoiding the arm from being unable to rotate, increasing the stress and stretching of the surgical area and surrounding tissues during the operation, and reducing the risk of injury to the patient during the surgical operation.

[0034] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. An arm fixation device for arteriovenous fistula surgery in patients undergoing intrarenal dialysis, characterized in that: include: The sleeve one (1) also includes: a workbench (23), the inner surface of the sleeve one (1) is movably provided with a sleeve two (2), the outer surface of the sleeve two (2) is fixedly connected with a slider one (3), the side of the sleeve one (1) close to the slider one (3) is provided with a slide groove one (4), the outer surface of the sleeve two (2) is provided with a notch (5), the inner surface of the notch (5) is movably embedded with a slider two (6), the outer surface of the slider two (6) is fixedly connected with a spring (7) and a working rod (8), the side of the sleeve one (1) close to the working rod (8) is provided with a slide groove two (11), the side of the working rod (8) away from the slider two (6) is fixedly connected with a tooth plate one (9), and the side of the tooth plate one (9) away from the working rod (8) is fixedly connected with a pull rod one (10).

2. The arm fixing device for arteriovenous fistula surgery for intrarenal dialysis patients according to claim 1, characterized in that: The outer surface of the sheath 1 (1) is provided with two slide grooves 3 (13) and a plurality of tooth grooves (14), and the inner surfaces of the two slide grooves 3 (13) are both movably embedded with sliders 3 (15).

3. The arm fixing device for arteriovenous fistula surgery for intrarenal dialysis patients according to claim 1, characterized in that: Two tooth plates (12) are fixedly connected to one side of the sheath (1) close to the slide groove (11), and the working rod (8) is movably embedded in the inner surface of the slide groove (11).

4. The arm fixing device for arteriovenous fistula surgery for intrarenal dialysis patients according to claim 1, characterized in that: The slider one (3) is movably embedded in the inner surface of the slide groove one (4), and the side of the spring (7) away from the slider two (6) is fixedly connected to the inner wall of the slot (5).

5. The arm fixing device for arteriovenous fistula surgery for intrarenal dialysis patients according to claim 2, characterized in that: The outer surfaces of the two sliding blocks (15) are both fixedly connected to a fixing plate (16), and the two fixing plates (16) are fixedly connected to the outer surface of the workbench (23).

6. The arm fixing device for arteriovenous fistula surgery for intrarenal dialysis patients according to claim 5, characterized in that: The outer surfaces of the two fixing plates (16) are each provided with a limiting groove (17), and the inner surfaces of the two limiting grooves (17) are each movably embedded with two limiting blocks (18).

7. The arm fixing device for arteriovenous fistula surgery for intrarenal dialysis patients according to claim 6, characterized in that: Two limiting rods (21) are fixedly connected to the outer surfaces of the opposite sides of the two limiting blocks (18), and a second pull rod (22) is fixedly connected to the outer surfaces of the two limiting rods (21).

8. The arm fixing device for arteriovenous fistula surgery for intrarenal dialysis patients according to claim 7, characterized in that: The outer surfaces of the opposite sides of the two fixing plates (16) are fixedly connected with fixing rods (19), and the outer surfaces of the fixing rods (19) are movably sleeved with gears (20).

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