Special fistula protection restraint device for hemodialysis of hemodialysis patient
By designing a multi-component fistula restraint device that works in synergy, the problem of the arm being difficult to bend slightly during hemodialysis was solved, achieving comfortable restraint and stable fixation for patients during dialysis and improving dialysis results.
Patent Information
- Application Number
- CN202422834389.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-20
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-11-20
AI Technical Summary
During hemodialysis, patients may move their arms around due to pain or fear, making it difficult for the restraints to hold them in place completely, which affects the dialysis effect. In addition, the restraints force the arms to lie flat and prevent them from bending slightly, causing discomfort.
A fistula restraint device was designed, comprising a movable plate, a support rod, a mounting bracket, a placement plate, an angle adjustment component, a fixing component, a constraint adjustment component, and a constraint component. Through the cooperation of these components, adjustable constraint and small-angle bending of the patient's arm can be achieved. It is bound with Velcro and stabilized by the angle adjustment component and the fixing component.
It achieves comfortable restraint of the patient's arm during dialysis, allowing for slight bending, avoiding discomfort caused by restraint straps, and improving the stability and comfort of dialysis.
Smart Images

Figure CN223614997U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fistula restraint technology, specifically to a fistula restraint device for hemodialysis patients. Background Technology
[0002] Hemodialysis is a common renal replacement therapy that uses a semipermeable membrane to draw the patient's blood out of the body and exchange substances with dialysate through a dialyzer. This removes metabolic waste and excess water from the blood and regulates electrolyte and acid-base balance. During dialysis, the patient may move their arm due to pain or fear when the needle is inserted, which can affect the dialysis process.
[0003] During dialysis, restraint straps are usually used to tie the patient's arm to the edge of the bed to prevent the arm from moving around. However, restraint straps cannot completely restrain and fix the patient's arm, and the patient can still move the arm slightly, which will still affect dialysis. Furthermore, when using restraint straps, one end is tied to the edge of the bed and the other end is tied to the patient's arm, which means that the patient's arm can only be placed flat on the bed and it is difficult to bend it slightly, which may make the patient's arm uncomfortable during dialysis. Utility Model Content
[0004] This invention proposes a fistula restraint device, which solves the problem in related technologies where patients' arms are difficult to bend slightly during dialysis restraint, which may cause discomfort.
[0005] The technical solution of this utility model is as follows:
[0006] A fistula restraint device for hemodialysis patients includes a movable plate and two support rods. Two support rods are respectively fixedly installed on the top ends of the two movable plates. The device also includes a mounting frame, a first placement plate, a second placement plate, an angle adjustment assembly, a fixing assembly, a branch frame, a restraint adjustment assembly, and a restraint assembly. Two mounting frames are provided, each fixedly installed on the top ends of the two support rods. The first placement plate is fixedly installed between the two mounting frames. The second placement plate is hinged to the side of the first placement plate. The angle adjustment assembly is located between the two mounting frames. The fixing assembly is located on one of the mounting frames. The branch frame is fixedly installed on both mounting frames. The restraint adjustment assembly is located on the second placement plate. The restraint assembly is located on both the first placement plate and the restraint adjustment assembly.
[0007] Furthermore, the angle adjustment assembly includes an adjustment shaft, a take-up roller, a fixing block, a lifting line, and a handwheel. There are two adjustment shafts, which are rotatably mounted on the inner sides of the two mounting brackets respectively. The take-up roller is fixedly mounted between the two adjustment shafts. The fixing block is fixedly mounted on the side of the second placement plate. One end of the lifting line is wound around the take-up roller, and the other end of the lifting line is fixedly mounted on the fixing block. The handwheel is fixedly mounted on the side of one of the adjustment shafts.
[0008] Furthermore, the fixing assembly includes a fixing rod, a fixing ring, a fixing frame, and a limiting rod. There are two fixing rods, which are respectively fixedly installed on both sides of one of the mounting frames. The fixing ring is fixedly installed between the two fixing rods. The fixing ring has several fixing holes, and one of the adjusting shafts is rotatably installed on the fixing ring. The fixing frame is fixedly installed on the adjusting shaft, and the side of the adjusting shaft has a fixing hole. The limiting rod is detachably installed in the fixing hole.
[0009] Furthermore, the constraint adjustment assembly includes a support frame, a reciprocating screw, a screw nut, and a throttle. Two support frames are provided, and the two support frames are respectively fixedly installed at both ends of the placement plate. The reciprocating screw is rotatably installed on one of the support frames, the screw nut is threadedly connected to the reciprocating screw, and the throttle is fixedly installed on the side of the reciprocating screw.
[0010] Furthermore, the constraint adjustment assembly also includes a slide bar and a slider, the slide bar being fixedly mounted on another of the support frames, and the slider being slidably mounted on the slide bar.
[0011] Furthermore, the constraint assembly includes a first constraint frame, a first hook and loop fastener, a second constraint frame, and a second hook and loop fastener. The first constraint frame is fixedly installed on the side of the first placement plate, one end of the hook and loop fastener is fixedly installed on the other end of the first placement plate, the second constraint frame is fixedly installed on the side of the slider, and one end of the second hook and loop fastener is fixedly installed on the other end of the lead screw nut.
[0012] Furthermore, the branch frame is fixedly mounted at an angle on the two mounting brackets, and a cable groove is provided at the top of the branch frame, with the lifting line contacting the cable groove.
[0013] Furthermore, a connecting bracket is fixedly installed on the side of the slider and the side of the lead screw nut.
[0014] Furthermore, the inner bottom end of the support frame is provided with a sliding groove, and the bottom end of the lead screw nut is slidably installed in the sliding groove via a sliding rod.
[0015] Furthermore, both the first and second hook and loop fasteners are made of elastic material.
[0016] The working principle and beneficial effects of this utility model are as follows:
[0017] 1. In this utility model, when restraining the arm of a dialysis patient, the restraint adjustment component can be adjusted according to the length of the patient's arm, and the restraint component can be used to bind and restrain the patient's arm. After completion, the angle adjustment component can be used to drive the placement plate to rotate and lift, thereby causing the patient's forearm to bend at a small angle, thus making the patient more comfortable during dialysis.
[0018] 2. In this utility model, after the second placement plate is adjusted, the adjustment shaft can be limited by the fixing component, so that the second placement plate is stationary, thereby preventing the second placement plate from moving after the adjustment is completed.
[0019] In summary, this restraint device, through the cooperation of the mounting frame, placement plate one, placement plate two, angle adjustment component, fixing component, branch frame, restraint adjustment component, and restraint component, can bend the arm of a dialysis patient when restraining it, thus keeping the patient in a more comfortable position. Attached Figure Description
[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0022] Figure 2 This is a schematic diagram of the structure of the mounting bracket and angle adjustment assembly of this utility model.
[0023] Figure 3 This is a schematic diagram showing the structure of the mounting bracket, handwheel, adjusting shaft, and fixing components of this utility model.
[0024] Figure 4 This is a structural diagram showing the combination of placement plate one, placement plate two, connecting frame, constraint assembly and constraint adjustment assembly of this utility model.
[0025] In the diagram: 1. Moving plate; 2. Support rod; 3. Mounting frame; 4. Placement plate one; 5. Placement plate two; 6. Branch frame; 7. Connecting frame; 101. Adjusting shaft; 102. Take-up roller; 103. Fixing block; 104. Lifting line; 105. Handwheel; 201. Fixing rod; 202. Fixing ring; 203. Fixing frame; 204. Limiting rod; 301. Support frame; 302. Reciprocating screw; 303. Screw nut; 304. Turning handle; 305. Sliding rod; 306. Sliding block; 401. Constraint frame one; 402. Velcro one; 403. Constraint frame two; 404. Velcro two. Detailed Implementation
[0026] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.
[0027] like Figures 1-4 As shown, this embodiment proposes a fistula restraint device specifically for hemodialysis patients, including a movable plate 1 and two support rods 2. Two support rods 2 are provided for each movable plate 1, and the two support rods 2 are respectively fixedly installed on the top of the two movable plates 1. It also includes a mounting frame 3, a placement plate 4, a placement plate 5, an angle adjustment assembly, a fixing assembly, a support frame 6, a restraint adjustment assembly, and a restraint assembly. Two mounting frames 3 are provided, and the two mounting frames 3 are respectively fixedly installed on the top of the two support rods 2. The placement plate 4 is fixedly installed between the two mounting frames 3. The placement plate 5 is hinged to the side of the placement plate 4. The angle adjustment assembly is provided on both mounting frames. Between 3, the fixing component is set on one of the mounting brackets 3, the branch frame 6 is fixedly installed on both mounting brackets 3, the constraint adjustment component is set on the second mounting plate 5, and the constraint component is set on the first mounting plate 4 and the constraint adjustment component. Specifically, the patient's arm can be placed on the first mounting plate 4 and the second mounting plate 5, and the constraint adjustment component can be adjusted to a suitable position. Then, the constraint component can be used to restrain the patient's arm. After restraint, the angle of the second mounting plate 5 can be adjusted by the angle adjustment component, so that the patient's arm is bent and adjusted to a comfortable state. Finally, the angle adjustment component is fixed by the fixing component.
[0028] In this embodiment, reference Figure 2The angle adjustment assembly includes an adjustment shaft 101, a take-up roller 102, a fixing block 103, a lifting line 104, and a handwheel 105. Two adjustment shafts 101 are provided, each rotatably mounted inside one of two mounting brackets 3. The take-up roller 102 is fixedly mounted between the two adjustment shafts 101. The fixing block 103 is fixedly mounted on the side of the placement plate 5. One end of the lifting line 104 is wound around the take-up roller 102, and the other end is fixedly mounted on the fixing block 103. The handwheel 105 is fixedly mounted on one of the adjustment shafts. Specifically, on the side of 101, the handwheel 105 can be rotated, which drives the adjusting shaft 101 to rotate. The adjusting shaft 101 drives the take-up roller 102 to rotate between the mounting frames 3, thereby winding up the lifting wire 104. The branch frame 6 is obliquely fixedly installed on the two mounting frames 3, and a wire groove is opened at the top of the branch frame 6. The lifting wire 104 contacts the wire groove. Under the support of the branch frame 6, the lifting wire 104 lifts the fixing block 103 and the placement plate 4. One end of the placement plate 4 is folded, thereby causing the patient's forearm to bend.
[0029] In this embodiment, reference Figure 3 The fixing assembly includes a fixing rod 201, a fixing ring 202, a fixing frame 203, and a limiting rod 204. There are two fixing rods 201, which are respectively fixedly installed on both sides of one of the mounting frames 3. The fixing ring 202 is fixedly installed between the two fixing rods 201. The fixing ring 202 has several fixing holes, and one of the adjusting shafts 101 is rotatably installed on the fixing ring 202. The fixing frame 203 is fixedly installed on the adjusting shaft 101, and the side of the adjusting shaft 101 has a fixing hole. The limiting rod 204 is detachably installed in the fixing hole. Specifically, after the placement plate 2 5 is adjusted, the fixing rod 201 can be inserted into the fixing holes of the fixing frame 203 and the fixing ring 202 to limit the adjusting shaft 101, so that the placement plate 2 5 is stationary, thereby supporting the patient's arm.
[0030] In this embodiment, reference Figure 4 The constraint adjustment assembly includes a support frame 301, a reciprocating screw 302, a screw nut 303, and a throttle 304. There are two support frames 301, which are fixedly installed at both ends of the placement plate 5. The reciprocating screw 302 is rotatably installed on one of the support frames 301. The screw nut 303 is threadedly connected to the reciprocating screw 302. The throttle 304 is fixedly installed on the side of the reciprocating screw 302.
[0031] In this embodiment, reference Figure 4The restraint adjustment assembly also includes a slide bar 305 and a slider 306. The slide bar 305 is fixedly mounted on another support frame 301, and the slider 306 is slidably mounted on the slide bar 305. Specifically, according to the different lengths of the patient's arm, the handle 304 is turned to make the reciprocating screw 302 rotate within the support frame 301. Because the inner bottom end of the support frame 301 is provided with a sliding groove, and the bottom end of the screw nut 303 is slidably mounted in the sliding groove through the slide bar, the screw nut 303 moves on the reciprocating screw 302. A connecting frame 7 is fixedly mounted on the side of the slider 306 and the side of the screw nut 303. Under the action of the connecting frame 7, the slider 306 moves on the slide bar 305, thereby driving the restraint frame 2 403 and the Velcro 2 404 to move back and forth, so as to make corresponding adjustments for the patient's arm of different lengths.
[0032] In this embodiment, reference Figure 4 The restraint assembly includes restraint frame 1 401, Velcro 1 402, restraint frame 2 403, and Velcro 2 404. Restraint frame 1 401 is fixedly installed on the side of placement plate 1 4, one end of the Velcro is fixedly installed on the other end of placement plate 1 4, restraint frame 2 403 is fixedly installed on the side of slider 306, and one end of Velcro 2 404 is fixedly installed on the other end of lead screw nut 303. Specifically, the patient's upper arm is placed on placement plate 1 4, and then the patient's forearm is placed on placement plate 2 5. Velcro 1 402 and Velcro 2 404 are then brought into contact with the patient's upper arm and forearm respectively, and then pass through restraint frame 1 401 and restraint frame 2 403 respectively before returning to a tight fit. Both Velcro 1 402 and Velcro 2 404 are made of elastic material and can be stretched according to the thickness of different patients' arms.
[0033] In this embodiment, when restraining a dialysis patient, the device is first moved to the patient's side. The patient's upper arm is placed on placement plate 1 (4), and the patient's forearm is placed on placement plate 2 (5). Then, depending on the length of the patient's arm, the handle 304 is rotated, causing the reciprocating screw 302 to rotate within the support frame 301. The screw nut 303 moves on the reciprocating screw 302, and under the action of the connecting frame 7, the slider 306 moves on the sliding rod 305, thereby driving the restraint frame 2 (403) and the Velcro 2 (404) to move back and forth, adjusting the restraint on the patient. After adjustment, the Velcro 1 (402) and Velcro 2 (404) are respectively placed in contact with the patient's upper arm and forearm, and then passed through the restraint frame 1 (403) and 2 (5). 1. After fastening the restraint frame 2 403, it is necessary to note that the surface of the Velcro has round and barbs to facilitate fastening. After fastening, the handwheel 105 can be rotated, which drives the adjusting shaft 101 to rotate. The adjusting shaft 101 drives the take-up roller 102 to rotate between the mounting frames 3, thereby winding up the lifting wire 104. With the support of the branch frame 6, the lifting wire 104 lifts one end of the fixing block 103 and the placement plate 4, thereby folding one end of the placement plate 4, causing the patient's forearm to bend and be adjusted to a comfortable position. Then, the limiting rod 204 is inserted into the fixing hole of the fixing ring 202 and the fixing frame 203 to limit it, and then dialysis is performed on the patient.
[0034] It should be added that the adjusting shaft 101 is located at the center of the fixed ring 202, and several fixing holes on the fixed ring 202 are distributed around the center on the fixed ring 202.
[0035] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A fistula restraint device for hemodialysis patients, comprising a movable plate (1) and a support rod (2), wherein two of each movable plate (1) and support rod (2) are provided, and the two support rods (2) are respectively fixedly installed on the top ends of the two movable plates (1), characterized in that, Also includes: Mounting bracket (3), two mounting brackets (3) are provided, and the two mounting brackets (3) are respectively fixedly installed on the top of the two support rods (2); Placement plate one (4) is fixedly installed between the two mounting brackets (3); Placement plate two (5), which is hinged to the side of placement plate one (4); An angle adjustment assembly is disposed between the two mounting brackets (3); A fixing component is disposed on one of the mounting brackets (3); Branch frame (6), said branch frame (6) is fixedly installed on the two said mounting brackets (3); A constraint adjustment component is disposed on the second placement plate (5); A constraint component is disposed on the placement plate (4) and the constraint adjustment component.
2. The fistula restraint device for hemodialysis patients according to claim 1, characterized in that, The angle adjustment component includes: Adjustment shaft (101), two adjustment shafts (101) are provided, and the two adjustment shafts (101) are respectively rotatably installed on the inner side of the two mounting brackets (3); A take-up roller (102) is fixedly installed between the two adjusting shafts (101); A fixing block (103) is fixedly installed on the side of the second placement plate (5); A lifting line (104) is provided, one end of which is wound around the take-up roller (102), and the other end of which is fixedly mounted on the fixing block (103). A handwheel (105) is fixedly mounted on the side of one of the adjusting shafts (101).
3. The fistula restraint device for hemodialysis patients according to claim 2, characterized in that, The fixing component includes: Two fixing rods (201) are provided, and the two fixing rods (201) are respectively fixedly installed on both sides of one of the mounting brackets (3); A fixing ring (202) is fixedly installed between two fixing rods (201). The fixing ring (202) has several fixing holes, and one of the adjusting shafts (101) is rotatably installed on the fixing ring (202). A fixing bracket (203) is fixedly installed on the adjusting shaft (101), and a fixing hole is provided on the side of the adjusting shaft (101); A limiting rod (204) is detachably installed in the fixing hole.
4. The fistula restraint device for hemodialysis patients according to claim 3, characterized in that, The constraint adjustment component includes: Support frame (301), two support frames (301) are provided, and the two support frames (301) are respectively fixedly installed at both ends of the placement plate two (5); A reciprocating lead screw (302) is rotatably mounted on one of the support frames (301); A lead screw nut (303) is threaded onto the reciprocating lead screw (302); A throttle (304) is fixedly mounted on the side of the reciprocating screw (302).
5. A fistula restraint device for hemodialysis patients according to claim 4, characterized in that, The constraint adjustment component further includes: A slide bar (305) is fixedly mounted on another support frame (301); A slider (306) is slidably mounted on the slide bar (305).
6. A fistula restraint device for hemodialysis patients according to claim 5, characterized in that, The constraint component includes: Constraint frame one (401) is fixedly installed on the side of the placement plate one (4); Hook and loop fastener 1 (402), one end of which is fixedly installed on the other end of the placement plate 1 (4); Constraint frame two (403) is fixedly installed on the side of the slider (306); Velcro 2 (404), one end of which is fixedly installed on the other end of the lead screw nut (303).
7. A fistula restraint device for hemodialysis patients according to claim 6, characterized in that, The branch frame (6) is fixedly mounted at an angle on the two mounting brackets (3), and a wire groove is provided at the top of the branch frame (6), and the lifting line (104) contacts the wire groove.
8. A fistula restraint device for hemodialysis patients according to claim 7, characterized in that, A connecting bracket (7) is fixedly installed on the side of the slider (306) and the side of the lead screw nut (303).
9. A fistula restraint device for hemodialysis patients according to claim 8, characterized in that, The inner bottom end of the support frame (301) is provided with a sliding groove, and the bottom end of the lead screw nut (303) is slidably installed in the sliding groove through a sliding rod.
10. A fistula restraint device for hemodialysis patients according to claim 9, characterized in that, Both the first hook and loop fastener (402) and the second hook and loop fastener (404) are made of elastic material.