Leg fixing equipment
By introducing height and angle adjustment components into the leg fixation device, the problem of existing devices being unable to adjust the tilt angle is solved, achieving precise fixation and comfortable adaptation of the patient's leg, and improving the user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG UNIV QILU HOSPITAL
- Filing Date
- 2025-07-30
- Publication Date
- 2026-04-17
AI Technical Summary
The existing leg fixation devices have non-adjustable clamp angles, causing discomfort to patients during fixation and failing to accommodate differences in leg length among different patients.
A leg fixation device was designed, comprising a leg height adjustment component and a support angle adjustment component. The height is adjusted by a threaded column and a lifting cylinder, and the angle is adjusted by an angle adjustment shaft and a limiting pin, ensuring that the height and angle of the fixation block are adapted to the patient's needs.
It improves patient comfort and device applicability, allowing for precise adjustment based on different patients' leg length and angle requirements, resulting in more stable fixation.
Smart Images

Figure CN224126223U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical and nursing auxiliary equipment technology, specifically a leg fixation device. Background Technology
[0002] The legs generally refer to the lower limbs from the ankle to the hip. The legs are one of the most important parts of the human body. With the knee as the midpoint, the legs can be divided into the thigh and calf, etc., and are composed of bones, muscles, and other tissues, serving to support the body for standing. Structure: The legs refer to the part from the ankle to the hip, divided into the thigh and calf. The area above the knee joint and extending to the hip is the thigh, which includes the hip bone, femur, patella, and patellar ligament. The calf, located below the knee joint and extending to the ankle, includes the tibia and fibula, and is composed of bones and muscles.
[0003] Patent application number 202322322381.2 discloses a leg care fixation device, including a long strip base plate. The lower surface of the base plate has a left clamping arm and a right clamping arm, both V-shaped, at both ends. The base plate contains a bidirectional screw for adjusting the distance between the left and right clamping arms and a drive motor for driving the bidirectional screw. The upper surface of the base plate has a control panel for controlling the drive motor and clamping components for securing the leg. Using this novel structure, the base plate is simply placed flat on the hospital bed. The control panel is manually operated to control the drive motor. The bidirectional screw simultaneously drives the left and right clamping arms to close, clamping and fixing the bed. The patient's leg is then secured using the clamping components. The device can be disassembled if the legs are open or closed. The operation is extremely simple, and the two V-shaped clamping arms have good clamping adaptability and stability to the bed, preventing loosening.
[0004] Existing leg immobilization devices have a problem with the inability to adjust the tilt angle of the clamping components. The clamping blocks are directly parallel to the base plate and are in a positive upward position. However, when the patient lies on the bed and the legs are extended upward for immobilization, the legs are tilted at an angle. This tilt angle will also vary from patient to patient due to differences in leg length. Since the legs are directly facing upward and cannot be adjusted, it will cause some discomfort to the user's legs during immobilization.
[0005] Therefore, a leg immobilization device is proposed to address the above problems. Utility Model Content
[0006] To overcome the shortcomings of existing technology, this solution addresses the issue that the tilt angle of the clamping components in existing leg fixation devices cannot be adjusted. The clamping block is directly parallel to the base plate and is in a positive upward position. However, when the patient lies on the bed and the legs are extended upward for fixation, the legs are tilted at an angle. This tilt angle varies from patient to patient due to differences in leg length. Since the legs are directly facing upward and cannot be adjusted, it can cause discomfort to the user's legs during fixation.
[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: The leg fixing device of this utility model includes a fixing device support plate. A leg height adjustment component is fixedly connected to the top of the fixing device support plate, and a leg support angle adjustment component is installed at the top of the leg height adjustment component. A fixing device fixing component is installed at the end of the fixing device support plate. The leg support angle adjustment component includes an arc-shaped leg fixing block. An adjustable fixing strap is installed at the top of the arc-shaped leg fixing block, and an angle adjustment rotating block is fixedly connected to the bottom of the arc-shaped leg fixing block. An angle adjustment rotating shaft is fixedly connected inside the angle adjustment rotating block, and a U-shaped support block is rotatably connected to the end of the angle adjustment rotating shaft. A limit hole is opened on the side of the U-shaped support block, and a limit pin is engaged inside the limit hole. A return spring is provided outside the limit pin.
[0008] Preferably, the limiting pin forms an elastic structure with the return spring and the U-shaped support block, and the limiting pin forms an engaging structure with the angle adjustment shaft through the limiting hole, and the limiting hole is evenly spaced on the side of the angle adjustment shaft.
[0009] Preferably, the angle adjusting block forms a rotating structure with the U-shaped support block through the angle adjusting shaft, and two U-shaped support blocks are symmetrically arranged about the vertical center axis of the fixed equipment support plate.
[0010] Preferably, the leg height adjustment component includes a threaded column, a limiting groove is formed on the side of the threaded column, a limiting slider is slidably connected inside the limiting groove, and a lifting cylinder is fixedly connected to the side of the limiting slider. An anti-detachment ring is integrally connected to the bottom end of the lifting cylinder, and a height adjustment nut is engaged at the bottom of the anti-detachment ring.
[0011] Preferably, the lifting cylinder forms a rotating structure through an anti-detachment ring and a height adjusting nut, and the lifting cylinder forms a lifting structure through a height adjusting nut and a threaded column, with the height adjusting nut and the threaded column being threadedly connected. The lifting cylinder forms a sliding structure through a limiting slider, a limiting groove, and the threaded column, and two limiting grooves are symmetrically arranged about the vertical central axis of the threaded column.
[0012] Preferably, the fixing device fixing component includes an L-shaped back block, a T-shaped slider is slidably connected to the inner wall of the L-shaped back block, and a fixing clamp is integrally connected to the side of the T-shaped slider. A rotating disc is engaged with the bottom of the fixing clamp, and a fastening bolt is fixedly connected to the bottom of the rotating disc.
[0013] Preferably, the fastening bolt forms a rotating structure with the fixed clamping block through a rotating disc, and the fixed clamping block forms a sliding structure with the L-shaped back block through a T-shaped slider, and the fastening bolt and the L-shaped back block are connected by threads.
[0014] The advantages of this utility model are:
[0015] 1. This utility model is equipped with a leg support angle adjustment component. By setting an angle adjustment pivot, the angle of the arc-shaped leg fixing block can be rotated and adjusted, so that it can be tilted according to the patient's needs, thereby improving the user's comfort. After adjusting to a suitable angle, it can be fixed by using the limiting hole and the limiting pin. The structure is simple and the operation is convenient.
[0016] 2. This utility model is equipped with a leg height adjustment component. By simply rotating the height adjustment nut, the lifting cylinder can raise or lower the leg support angle adjustment component at its top, thereby facilitating the adjustment of the arc-shaped leg fixing block to a suitable height for fixing the patient's leg. This improves the applicability of the device. Furthermore, the device is equipped with a limit groove and a limit slider to prevent the lifting cylinder from rotating along with the height adjustment nut, thus ensuring that the angle of the arc-shaped leg fixing block is always correct. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a three-dimensional structural diagram of the entire utility model from the front view;
[0019] Figure 2 This is a three-dimensional structural diagram of the fixing component of the fixing device of this utility model;
[0020] Figure 3 This is a three-dimensional structural diagram of the angle adjustment shaft part of this utility model;
[0021] Figure 4This is an exploded structural diagram of the leg support angle adjustment component of this utility model.
[0022] Figure 5 This is an exploded structural diagram of the rotating disc portion of this utility model;
[0023] Figure 6 This is an exploded structural diagram of the leg height adjustment component of this utility model.
[0024] In the diagram: 1. Fixed equipment support cross plate; 2. Leg height adjustment assembly; 3. Leg support angle adjustment assembly; 4. Fixed equipment fixing assembly; 201. Threaded column; 202. Limiting slide groove; 203. Limiting slider; 204. Lifting cylinder; 205. Anti-detachment ring; 206. Height adjustment nut; 301. Arc-shaped leg fixing block; 302. Adjustable fixing strap; 303. Angle adjustment rotating block; 304. Angle adjustment rotating shaft; 305. U-shaped support block; 306. Limiting hole; 307. Limiting pin; 308. Return spring; 401. L-shaped back block; 402. T-shaped slider; 403. Fixing clamp; 404. Rotating disc; 405. Fastening bolt. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0026] Example 1
[0027] like Figure 1 As shown, a leg fixation device includes a fixation device support plate 1, a leg height adjustment component 2 is fixedly connected to the top of the fixation device support plate 1, a leg support angle adjustment component 3 is installed at the top of the leg height adjustment component 2, and a fixation device fixing component 4 is installed at the end of the fixation device support plate 1.
[0028] like Figure 3 and Figure 4As shown, a leg fixation device includes a leg support angle adjustment assembly 3 comprising an arc-shaped leg fixing block 301. An adjustable fixing strap 302 is mounted on the top of the arc-shaped leg fixing block 301, and an angle adjustment rotating block 303 is fixedly connected to the bottom of the arc-shaped leg fixing block 301. An angle adjustment rotating shaft 304 is fixedly connected inside the angle adjustment rotating block 303, and a U-shaped support block 305 is rotatably connected to the end of the angle adjustment rotating shaft 304. A limiting hole 306 is provided on the side of the U-shaped support block 305, and a limiting pin 307 is engaged inside the limiting hole 306. A return spring 308 is provided outside the limiting pin 307. The limiting pin 307 and the U-shaped support block 305 form an elastic structure through the return spring 308, and the limiting pin... Pin 307 forms a locking structure with angle adjustment shaft 304 through limiting hole 306, and the limiting hole 306 is evenly spaced about the side of angle adjustment shaft 304. Angle adjustment block 303 forms a rotating structure with U-shaped support block 305 through angle adjustment shaft 304, and two U-shaped support blocks 305 are symmetrically arranged about the vertical center axis of the fixed equipment support plate 1. With the setting of angle adjustment shaft 304, the angle of arc-shaped leg fixing block 301 can be rotated and adjusted, so that it can be tilted according to the patient's needs, which can improve the user's comfort. After adjusting to a suitable angle, the limiting hole 306 and limiting pin 307 can be used to limit and fix it. The structure is simple and the operation is convenient.
[0029] like Figure 6As shown, a leg fixing device includes a leg height adjustment assembly 2 comprising a threaded post 201. A limiting groove 202 is formed on the side of the threaded post 201, and a limiting slider 203 is slidably connected inside the limiting groove 202. A lifting cylinder 204 is fixedly connected to the side of the limiting slider 203. An anti-detachment ring 205 is integrally connected to the bottom end of the lifting cylinder 204, and a height adjustment nut 206 is engaged with the bottom of the anti-detachment ring 205. The lifting cylinder 204 forms a rotating structure through the anti-detachment ring 205 and the height adjustment nut 206, and the lifting cylinder 204 forms a lifting structure with the threaded post 201 through the height adjustment nut 206. The height adjustment nut 206 and the threaded post 201 are threadedly connected. The cylinder 204 forms a sliding structure with the threaded column 201 through the limiting slider 203, the limiting groove 202, and the threaded column 201. The limiting groove 202 is symmetrically arranged with two grooves about the vertical center axis of the threaded column 201. By simply rotating the height adjusting nut 206, the lifting cylinder 204 can raise or lower the leg support angle adjusting component 3 at its top, thereby facilitating the adjustment of the arc-shaped leg fixing block 301 to a suitable height to fix the patient's leg and improve the applicability of the device. Furthermore, the limiting groove 202 and the limiting slider 203 cooperate with each other to prevent the lifting cylinder 204 from rotating together with the height adjusting nut 206, thereby ensuring that the angle of the arc-shaped leg fixing block 301 is always correct.
[0030] like Figure 2 and Figure 5 As shown, a leg fixation device includes a fixing component 4 comprising an L-shaped back block 401. A T-shaped slider 402 is slidably connected to the inner wall of the L-shaped back block 401, and a fixing clamp 403 is integrally connected to the side of the T-shaped slider 402. A rotating disc 404 is engaged with the bottom of the fixing clamp 403, and a fastening bolt 405 is fixedly connected to the bottom of the rotating disc 404. The fastening bolt 405 forms a rotating structure with the fixing clamp 403 through the rotating disc 404, and the fixing clamp 403 forms a sliding structure with the L-shaped back block 401 through the T-shaped slider 402. The fastening bolt 405 and the L-shaped back block 401 are connected by threads.
[0031] Working principle: First, slide this device into the bed from one end. When it slides down to the patient's leg, turn the fastening bolt 405. Since the fastening bolt 405 and the L-shaped back block 401 are threaded, when the fastening bolt 405 is turned, the end will rotate the rotating disc 404 inside the fixing block 403 and move upward against the fixing block 403. It cooperates with the end of the fixing device support plate 1 to clamp and fix the leg fixing device on the bed. Then, lift the patient's leg upward and lock it on the arc-shaped leg fixing block 301. The arc-shaped leg fixing block 301 is made of plastic and is covered with a protective soft pad.
[0032] When the height needs to be adjusted, simply rotate the height adjusting nut 206. The height adjusting nut 206 and the threaded post 201 are connected by threads. When the height adjusting nut 206 is rotated, the position of the height adjusting nut 206 will rise or fall outside the threaded post 201 under the action of the threads. Then, the lifting cylinder 204 will raise or lower the leg support angle adjustment component 3 at its top to the appropriate position.
[0033] Next, pull the limiting pin 307 outward so that the end of the limiting pin 307 disengages from the limiting hole 306. At this time, the arc-shaped leg fixing block 301 can be rotated and adjusted by the angle adjusting block 303 and the angle adjusting shaft 304. When the appropriate angle is adjusted, the limiting pin 307 is released. One end of the return spring 308 is fixedly connected to the U-shaped support block 305, and the other end is fixedly connected to the limiting pin 307. After the limiting pin 307 is released, under the action of the return spring 308, the released limiting pin 307 moves inward so that its end is inserted into the corresponding limiting hole 306 again to limit and fix it, preventing it from rotating further. After the height and angle are adjusted appropriately, the adjustable fixing strap 302 is wrapped around the leg from above and tightened and fixed to the buckle at its end to limit and fix the patient's leg.
[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A leg immobilization device, characterized by: The device includes a fixed equipment support plate (1), the top of which is fixedly connected to a leg height adjustment component (2), and the top of the leg height adjustment component (2) is equipped with a leg support angle adjustment component (3), and the end of the fixed equipment support plate (1) is equipped with a fixed equipment fixing component (4). The leg support angle adjustment assembly (3) includes an arc-shaped leg fixing block (301), an adjustable fixing strap (302) is installed on the top of the arc-shaped leg fixing block (301), and an angle adjustment rotating block (303) is fixedly connected to the bottom of the arc-shaped leg fixing block (301). An angle adjustment rotating shaft (304) is fixedly connected inside the angle adjustment rotating block (303), and a U-shaped support block (305) is rotatably connected to the end of the angle adjustment rotating shaft (304). A limit hole (306) is opened on the side of the U-shaped support block (305), and a limit pin (307) is engaged inside the limit hole (306). A return spring (308) is provided outside the limit pin (307).
2. A leg immobilization device according to claim 1, wherein: The limiting pin (307) forms an elastic structure with the U-shaped support block (305) through the return spring (308), and the limiting pin (307) forms a locking structure with the angle adjustment shaft (304) through the limiting hole (306), and the limiting hole (306) is set at equal intervals with respect to the side of the angle adjustment shaft (304).
3. A leg immobilization device according to claim 1, wherein: The angle adjustment block (303) forms a rotating structure with the U-shaped support block (305) through the angle adjustment shaft (304), and there are two U-shaped support blocks (305) symmetrically arranged about the vertical centerline of the fixed equipment support plate (1).
4. A leg immobilization device according to claim 1, wherein: The leg height adjustment assembly (2) includes a threaded post (201), a limiting groove (202) is provided on the side of the threaded post (201), and a limiting slider (203) is slidably connected inside the limiting groove (202). A lifting cylinder (204) is fixedly connected to the side of the limiting slider (203). An anti-detachment ring (205) is integrally connected to the bottom end of the lifting cylinder (204), and a height adjustment nut (206) is engaged at the bottom of the anti-detachment ring (205).
5. A leg immobilization device according to claim 4, wherein: The lifting cylinder (204) forms a rotating structure through the anti-detachment ring (205) and the height adjusting nut (206), and the lifting cylinder (204) forms a lifting structure through the height adjusting nut (206) and the threaded column (201), and the height adjusting nut (206) and the threaded column (201) are connected by threads. The lifting cylinder (204) forms a sliding structure through the limiting slider (203), the limiting groove (202) and the threaded column (201), and two limiting grooves (202) are symmetrically arranged about the vertical central axis of the threaded column (201).
6. A leg immobilization device as defined in claim 1, wherein: The fixing device fixing assembly (4) includes an L-shaped back block (401), a T-shaped slider (402) is slidably connected to the inner wall of the L-shaped back block (401), and a fixing clamp (403) is integrally connected to the side of the T-shaped slider (402). A rotating disc (404) is engaged with the bottom of the fixing clamp (403), and a fastening bolt (405) is fixedly connected to the bottom of the rotating disc (404).
7. A leg immobilization device according to claim 6, wherein: The fastening bolt (405) forms a rotating structure with the fixed clamping block (403) through the rotating disc (404), and the fixed clamping block (403) forms a sliding structure with the L-shaped back block (401) through the T-shaped slider (402), and the fastening bolt (405) and the L-shaped back block (401) are threaded together.
Citation Information
Patent Citations
A fixation device for leg care
CN220938382U