A limb fixation device for peritoneal dialysis
By designing an adjustable limb fixation device, the problem of fixed position of existing devices is solved, and the flexibility and stability are improved, adapting to the waist circumference needs of patients with different body types and providing a comfortable fixation effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINESE PEOPLES LIBERATION ARMY GENERAL HOSPITAL HAINAN HOSPITAL
- Filing Date
- 2025-05-27
- Publication Date
- 2026-05-29
AI Technical Summary
Existing limb fixation devices for peritoneal dialysis have a fixed position during use, resulting in poor flexibility and difficulty in adapting to the waist circumference of patients with different body types, thus affecting fixation stability.
A limb fixation device comprising a main structure and a fixing structure was designed. Through components such as T-shaped clips, support frames, fixing plates, adjusting screws, and bidirectional lead screws, the position and height of the device can be flexibly adjusted to adapt to the waist circumference of patients with different body types.
This improves the flexibility and stability of the device, adapts to the needs of patients in different positions and body types, and reduces patient discomfort.
Smart Images

Figure CN224292114U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of peritoneal dialysis technology in nephrology; more specifically, it relates to a limb fixation device for peritoneal dialysis. Background Technology
[0002] Peritoneal dialysis is a treatment for kidney failure. It uses the peritoneum as a semipermeable membrane to remove waste and excess water from the body by infusing dialysate. During this process, the patient needs to maintain a specific position. Usually, a catheter is inserted into the abdomen for fluid exchange. At this time, limb stability is very important because any movement may lead to catheter displacement or infection, affecting the treatment effect.
[0003] Currently, existing limb fixation devices for peritoneal dialysis have limited flexibility in use because some devices are typically fixed in position and require the patient to move to adapt to the device's location. Furthermore, some existing devices are not easily adjustable to accommodate different body types and waist circumferences when fixing the patient's abdomen, potentially resulting in poor stability. Therefore, there is an urgent need for a limb fixation device for peritoneal dialysis to address these issues. Utility Model Content
[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a limb fixation device for peritoneal dialysis to solve the problems existing in the background art.
[0005] This utility model provides the following technical solution: a limb fixation device for peritoneal dialysis, comprising:
[0006] The main structure includes a bed, T-shaped clamps, a support frame, and a fixing plate, and both the T-shaped clamps and the support frame are provided in two sets;
[0007] The fixing structure includes an adjusting screw, a bidirectional lead screw, and a connecting seat, with two sets of connecting seats, and the adjusting screw is threadedly connected to the interior of the middle position of the fixing plate.
[0008] Preferably, the two sets of T-shaped locking strips are fixedly connected to the surfaces on both sides of the bed body, and the two ends of the two sets of T-shaped locking strips are fixedly connected to limit baffles. The position of the two sets of locking blocks can be restricted by the setting of the two sets of limit baffles, thereby preventing the two sets of locking blocks from detaching from the outer surface of the two sets of T-shaped locking strips when moving.
[0009] Preferably, both sets of T-shaped locking strips have locking blocks engaged on their outer surfaces, and both sets of locking blocks are internally threaded with bidirectional lead screws. One end of each locking screw abuts against one side of the surface of the two sets of T-shaped locking strips. The T-shaped shape of the two sets of T-shaped locking strips improves the stability of the locking blocks during use, allowing them to move linearly only on their outer surfaces. The locking screws can rotate inside the locking blocks, and when one end of each locking screw abuts against one side of the surface of the two sets of T-shaped locking strips, they can fix the position of the locking blocks.
[0010] Preferably, the two sets of support frames are respectively fixedly connected to the upper surfaces of the two sets of locking blocks, and the fixing plate is fixedly connected to the upper ends of the two sets of support frames. When the two sets of locking blocks move, they can drive the two sets of support frames and the fixing plate to move synchronously, and can also drive the entire fixed structure to move synchronously.
[0011] Preferably, the lower end bearing of the adjusting screw is connected to a connecting plate, and the upper surfaces of both ends of the connecting plate are fixedly connected to limit rods. The two sets of limit rods are respectively inserted into the interior of both ends of the fixed plate. The adjusting screw can rotate inside the middle position of the fixed plate, and the adjusting screw can drive the connecting plate to move when rotating. The two sets of limit rods can restrict the movement trajectory of the connecting plate, so that the connecting plate can only move in a longitudinal straight line, and can prevent the connecting plate from deviating or rotating during movement.
[0012] Preferably, both ends of the lower surface of the connecting plate are fixedly connected to a fixing seat, and the internal bearings of the two sets of fixing seats are connected to a bidirectional lead screw. One end of the bidirectional lead screw is fixedly connected to a handwheel. The handwheel allows the user to rotate the bidirectional lead screw more effortlessly. The two sets of bidirectional lead screws can limit the rotation of the bidirectional lead screw, thus preventing displacement of the bidirectional lead screw during rotation.
[0013] Preferably, both ends of the bidirectional lead screw are threaded with connecting seats, and the upper surfaces of both sets of connecting seats are attached to the lower surface of the connecting plate. The lower ends of both sets of connecting seats are fixedly connected with fixing plates, and the lower surfaces of both sets of fixing plates are fixedly connected with buffer pads. The two ends of the bidirectional lead screw are provided with threads in opposite directions. Therefore, when the bidirectional lead screw rotates, it can drive the two sets of connecting seats to move closer or further apart, thereby adjusting the distance between the two sets of fixing plates.
[0014] The technical effects and advantages of this utility model are as follows: By rotating the two sets of locking screws, one end of the two sets of locking screws can be disengaged from the surface of one side of the two sets of T-shaped clips. At this time, the fixing plate can be pulled to move the fixing structure as a whole synchronously. This design allows the device to adjust the position of the fixing structure according to the patient's body position during use without the need for the patient to move it, thereby effectively improving the flexibility of the device during use.
[0015] This invention allows the connecting plate to move up or down by rotating the adjusting screw, thus adjusting the height of the two sets of fixing plates. Rotating the handwheel and the bidirectional lead screw moves the two sets of fixing plates closer or further apart, adjusting the distance between them. This design allows the two sets of fixing plates to be adjusted according to the patient's body size when fixing the limbs, thereby improving the applicability of the device and effectively enhancing the stability of the two sets of fixing plates when fixing the patient. Moreover, its overall structure is simple and reasonable, highly practical, and easy to promote and apply. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0017] Figure 2 This is a three-dimensional structural diagram of the main structure of this utility model.
[0018] Figure 3 This is a partial exploded view of the three-dimensional structure of the main body of this utility model.
[0019] Figure 4 This is a schematic diagram of the fixed structure of this utility model in use.
[0020] Figure 5 This is an exploded three-dimensional diagram of the fixed structure of this utility model.
[0021] The attached diagram is labeled as follows: 1. Main structure; 11. Bed frame; 12. T-shaped locking bar; 13. Limiting baffle; 14. Locking block; 15. Locking screw; 16. Support frame; 17. Fixing plate; 2. Fixing structure; 21. Adjusting screw; 22. Connecting plate; 23. Limiting rod; 24. Fixing seat; 25. Two-way lead screw; 26. Handwheel; 27. Connecting seat; 28. Fixing clamp; 29. Buffer pad. Detailed Implementation
[0022] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The limb fixation device for peritoneal dialysis involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0023] Example 1
[0024] like Figures 1 to 3 As shown, this utility model provides a limb fixation device for peritoneal dialysis, including: a main structure 1, which includes a bed 11, T-shaped locking strips 12, support frames 16, and a fixing plate 17. Two sets of T-shaped locking strips 12 and support frames 16 are provided. The two sets of T-shaped locking strips 12 are respectively fixedly connected to the surfaces of both sides of the bed 11, and both ends of the two sets of T-shaped locking strips 12 are fixedly connected to limit baffles 13. Locking blocks 14 are engaged on the outer surfaces of the two sets of T-shaped locking strips 12, and the interiors of the two sets of locking blocks 14 are threaded with bidirectional screws 25. One end of each of the two sets of locking screws 15 abuts against one side of the surface of the two sets of T-shaped locking strips 12. Two sets of support frames 16 are respectively fixedly connected to the upper surfaces of the two sets of locking blocks 14, and the fixing plate 17 is fixedly connected to the upper ends of the two sets of support frames 16. The two sets of limit baffles 13 restrict the position of the two sets of locking blocks 14, thereby preventing the locking blocks from being engaged. When moving, the two sets of T-shaped locking strips 12 detach from their outer surfaces. The T-shape of the two sets of T-shaped locking strips 12 improves the stability of the two sets of locking blocks 14 during use, allowing the two sets of locking blocks 14 to only move linearly on the outer surfaces of the two sets of T-shaped locking strips 12, thereby improving the stability of the device during use. The two sets of locking screws 15 can rotate inside the two sets of locking blocks 14 respectively. When one end of the two sets of locking screws 15 abuts against the surface of one side of the two sets of T-shaped locking strips 12, it can fix the position of the two sets of locking blocks 14. Rotating the two sets of locking screws 15 can cause one end of the two sets of locking screws 15 to detach from the surface of one side of the two sets of T-shaped locking strips 12. At this time, the fixing plate 17 can be pulled to move the fixing structure 2 as a whole synchronously. This design allows the device to adjust the position of the fixing structure 2 according to the patient's body position during use without the need for the patient to move it, thereby effectively improving the flexibility of the device during use.
[0025] Example 2
[0026] like Figures 1 to 5As shown, this embodiment also proposes: a fixing structure 2, which includes an adjusting screw 21, a bidirectional lead screw 25, and a connecting seat 27. Two sets of connecting seats 27 are provided. The adjusting screw 21 is threadedly connected to the interior of the middle position of the fixing plate 17. The lower end of the adjusting screw 21 is bearing-connected to a connecting plate 22. Limiting rods 23 are fixedly connected to the upper surfaces of both ends of the connecting plate 22, and the two sets of limiting rods 23 are respectively inserted into the interior of both ends of the fixing plate 17. Fixing seats 24 are fixedly connected to both ends of the lower surface of the connecting plate 22, and the two sets of fixing seats 24... An internal bearing connects to a double-acting lead screw 25, and a handwheel 26 is fixedly connected to one end of the double-acting lead screw 25. Connecting seats 27 are threaded onto the outer surfaces of both ends of the double-acting lead screw 25. The upper surfaces of both sets of connecting seats 27 are in contact with the lower surface of the connecting plate 22, and a fixing clamp 28 is fixedly connected to the lower end of both sets of connecting seats 27. A buffer pad 29 is fixedly connected to the lower surface of both sets of fixing clamps 28. The adjusting screw 21 can rotate within the middle position of the fixing plate 17, and when the adjusting screw 21 rotates, it can move the connecting plate 22. Furthermore, the movement trajectory of the connecting plate 22 can be restricted by the two sets of limiting rods 23, ensuring that the connecting plate 22 can only move longitudinally in a straight line, and preventing the connecting plate 22 from shifting or rotating during movement. Rotating the adjusting screw 21 allows for adjustment of the height of the two sets of fixed clamping plates 28. The handwheel 26 allows the user to rotate the bidirectional lead screw 25 with less effort, and the two sets of bidirectional lead screws 25 can limit their rotation, preventing them from shifting during rotation. In the case of displacement, the two ends of the bidirectional lead screw 25 are provided with threads in opposite directions. Therefore, when the bidirectional lead screw 25 rotates, it can drive the two sets of connecting seats 27 to move closer or further apart, thereby adjusting the distance between the two sets of fixing plates 28. This design allows the two sets of fixing plates 28 to be adjusted according to the patient's body size when fixing the patient's limbs. In addition, the material of the two sets of cushioning pads 29 is flexible sponge. Because the flexible sponge is soft, it can provide comfortable support when it fits the patient's body, thereby minimizing the discomfort for the patient during use.
[0027] Working principle: When using the equipment, first let the patient lie flat on the upper surface of the bed 11. Then, pull the fixing plate 17 to move the fixing structure 2 as a whole. After adjusting the fixing structure 2 to a suitable position, rotate the two sets of locking screws 15 respectively. Then, one end of the two sets of locking screws 15 abuts against the surface of one side of the two sets of T-shaped clips 12 respectively. At this time, the position of the fixing plate 17 and the fixing structure 2 as a whole can be fixed.
[0028] Next, rotating the adjusting screw 21 causes the connecting plate 22 and the two sets of fixed clamps 28 to descend. After adjusting the height of the two sets of fixed clamps 28 to a suitable position, rotating the handwheel 26 causes the bidirectional screw 25 to rotate. Then, when the bidirectional screw 25 rotates, it causes the two sets of fixed clamps 28 to move closer to each other. At this time, the two sets of fixed clamps 28 can fix the two sides of the patient's abdomen. The above is the entire working principle of this utility model.
[0029] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.
[0030] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.
[0031] In conclusion, the above are merely preferred embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, 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 limb fixation device for peritoneal dialysis, characterized in that, include: The main structure (1) includes a bed (11), a T-shaped clip (12), a support frame (16) and a fixing plate (17), and both the T-shaped clip (12) and the support frame (16) are provided with two sets; The fixing structure (2) includes an adjusting screw (21), a two-way lead screw (25) and a connecting seat (27), and the connecting seat (27) is provided in two sets, and the adjusting screw (21) is threadedly connected to the interior of the middle position of the fixing plate (17).
2. The limb fixation device for peritoneal dialysis according to claim 1, characterized in that: The two sets of T-shaped clips (12) are fixedly connected to the surfaces on both sides of the bed body (11), and the two ends of the two sets of T-shaped clips (12) are fixedly connected to limit baffles (13).
3. The limb fixation device for peritoneal dialysis according to claim 1, characterized in that: Both sets of T-shaped clips (12) have locking blocks (14) on their outer surfaces, and both sets of locking blocks (14) are threaded with bidirectional screws (25). One end of each of the two sets of locking screws (15) abuts against the surface of one side of the two sets of T-shaped clips (12).
4. A limb fixation device for peritoneal dialysis according to claim 3, characterized in that: The two sets of support frames (16) are respectively fixedly connected to the upper surfaces of the two sets of locking blocks (14), and the fixing plate (17) is fixedly connected to the upper end of the two sets of support frames (16).
5. A limb fixation device for peritoneal dialysis according to claim 1, characterized in that: The lower end bearing of the adjusting screw (21) is connected to a connecting plate (22), and the upper surfaces of both ends of the connecting plate (22) are fixedly connected to limit rods (23), and the two sets of limit rods (23) are respectively inserted into the interior of both ends of the fixed plate (17).
6. A limb fixation device for peritoneal dialysis according to claim 5, characterized in that: Both ends of the lower surface of the connecting plate (22) are fixedly connected to the fixing seats (24), and the internal bearings of the two sets of fixing seats (24) are connected to the double-acting screw (25), and one end of the double-acting screw (25) is fixedly connected to the handwheel (26).
7. A limb fixation device for peritoneal dialysis according to claim 6, characterized in that: The outer surfaces of both ends of the bidirectional lead screw (25) are threaded with connecting seats (27), and the upper surfaces of the two sets of connecting seats (27) are attached to the lower surface of the connecting plate (22). The lower ends of the two sets of connecting seats (27) are fixedly connected with fixing plates (28), and the lower surfaces of the two sets of fixing plates (28) are fixedly connected with buffer pads (29).