A leg rehabilitation and care device

Abstract

This utility model relates to the field of rehabilitation nursing technology, specifically disclosing a leg rehabilitation nursing device, including: a first leg fixation component, a second leg fixation component, a knee joint hinge component, and a traction component; the first leg fixation component is movably connected to the second leg fixation component through the knee joint hinge component, the knee joint hinge component is adjustable in its flexion angle and includes an operable limiting mechanism for selectively locking or releasing the flexion angle; the traction component is connected to the second leg fixation component, and through traction force transmission, drives the first leg fixation component and the second leg fixation component to achieve reciprocating flexion and extension movements. The design of this device allows patients to operate it conveniently around the clock, greatly improving the patient's rehabilitation efficiency. Furthermore, the overall structure of the device is simple and reliable, reducing nursing costs.

Description

Technical Field

[0001] This utility model relates to the field of rehabilitation nursing technology, specifically to a leg rehabilitation nursing device. Background Technology

[0002] In the field of clinical rehabilitation nursing, the recovery of motor function in long-term bedridden patients and those who have undergone lower limb surgery is an important issue. Traditional manual passive stretching training has significant technical drawbacks: First, it relies on nurses to manually perform joint range of motion training, which leads to problems such as low operational efficiency, uneven application of force, and a high risk of secondary injury; second, patients are unable to stand independently for training in the early postoperative period due to insufficient muscle strength, and the lack of standardized equipment support during bedridden rehabilitation makes it difficult to quantify and control the intensity and frequency of training. Existing leg rehabilitation devices mostly use motor-driven or rigid frame structures, whose structural complexity and cumbersome operation result in low patient compliance, and their bulky size makes them difficult to adapt to the bedside environment.

[0003] Therefore, there is an urgent clinical need to develop a lower limb rehabilitation and nursing device that has mechanical transmission capabilities, strong body position adaptability, and allows patients to operate it independently, in order to improve rehabilitation efficiency and reduce nursing costs. Utility Model Content

[0004] To achieve the purpose of this utility model, this application provides a leg rehabilitation and care device, including: a first leg fixation component, a second leg fixation component, a knee joint hinge component, and a traction component; the first leg fixation component is movably connected to the second leg fixation component through the knee joint hinge component, the knee joint hinge component is adjustable in its flexion angle, and the knee joint hinge component also includes an operable limiting mechanism for selectively locking or releasing the flexion angle; the traction component is connected to the second leg fixation component, and drives the first leg fixation component and the second leg fixation component to achieve reciprocating flexion and extension movements through traction force transmission.

[0005] In some specific embodiments, the traction assembly includes a pull rope, a movable part, and a protruding rod;

[0006] There are two protruding rods, which are symmetrically installed on both sides of the second leg fixing assembly. The movable part is rotatably connected to the protruding rods and is fixedly connected to the pull rope.

[0007] In some specific embodiments, the knee joint hinge assembly further includes a first connector, a second connector, and a shaft, wherein one end of the first connector is fixedly mounted on one side of the first leg fixation assembly, and the other end is fixedly connected to one end of the shaft; one end of the second connector is rotatably sleeved on the outside of the shaft, and the other end is fixedly connected to the second leg fixation assembly.

[0008] In some specific embodiments, the limiting mechanism includes: a stud, a cover plate, a handle, insert rods, and a limiting frame; the shaft has a threaded channel matching the stud inside, the limiting frame is sleeved on the non-threaded section of the stud, one end of the non-threaded section of the stud is fixedly connected to the cover plate, and the other end is engaged with the thread inside the shaft to form a threaded adjustment mechanism, the surface of the cover plate is fixedly connected to the handle, and the cover plate is used to limit the limiting frame; a pair of insert rods are symmetrically fixed on both sides of the limiting frame, and the axial displacement of the stud is driven by rotating the handle, so that the insert rods are inserted or disengaged synchronously in both directions into or out of the corresponding limiting holes of the first connector and the second connector.

[0009] In some specific embodiments, the first leg fixing component includes: a first plate, a first strap, a first guard plate, and a first D-ring;

[0010] One end of the first strap is fixedly installed on one side surface of the first plate, the first guard plate is sleeved on the outside of the first strap, the first D-ring is fixedly installed on the other side of the first plate away from the first strap, and the free end of the first strap slides through the inner guide rail of the first D-ring.

[0011] In some specific embodiments, the second leg fixing component includes: a second plate, a second strap, a second guard plate, and a second D-ring;

[0012] One end of the second strap is fixedly installed on one side of the second plate, the second guard plate is sleeved on the outside of the second strap, the second D-ring is fixedly installed on the other side of the second plate away from the second strap, and the free end of the second strap slides through the inner guide rail of the second D-ring.

[0013] In some specific embodiments, the traction assembly further includes a fixing rod and a handle;

[0014] One end of the pull rope is fixed to the movable part, and the other end is connected to the handle via a fixed rod. The handle and the fixed rod adopt a detachable connection structure. The far end of the fixed rod is provided with an external thread, and the near end of the handle is provided with a matching threaded blind hole. The two are axially fixed by thread engagement.

[0015] In some specific embodiments, the handle grip portion is provided with anti-slip texture.

[0016] This device uses a first leg fixation component and a second leg fixation component to fit and fix the thigh and lower leg respectively. The two are movably connected by a knee joint hinge component. Its built-in limiting mechanism can selectively lock or release the flexion angle; when locked, the leg is in an extended position. When unlocked, the patient can actively pull the traction component to drive the knee joint for flexion and extension exercises. The adjustable hinge mechanism significantly improves rehabilitation safety. The design of this device allows for convenient operation by the patient around the clock, greatly improving rehabilitation efficiency. Furthermore, the overall structure of the device is streamlined and reliable, further reducing nursing costs. Attached Figure Description

[0017] Figure 1 A schematic diagram of a leg rehabilitation and care device provided in one embodiment of the present invention;

[0018] Figure 2 A partial schematic diagram of a leg rehabilitation and care device provided in one embodiment of the present invention;

[0019] Figure 3 A traction component of a leg rehabilitation and nursing device is provided as an embodiment of this utility model.

[0020] The components are as follows: 1. First plate; 2. First strap; 3. First guard plate; 4. First D-ring; 5. First connector; 6. Shaft; 7. Second connector; 8. Second plate; 9. Second strap; 10. Second guard plate; 11. Second D-ring; 12. Cover plate; 13. Rotating handle; 14. Insert rod; 15. Protruding rod; 16. Movable part; 17. Pull rope; 18. Fixed rod; 19. Handle; 20. Limiting frame. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar symbols denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0023] One embodiment of this utility model provides a leg rehabilitation and care device, such as... Figure 1 , Figure 2 and Figure 3As shown, this device includes a first leg fixation component, a second leg fixation component, a knee joint hinge component, and a traction component. The first leg fixation component is movably connected to the second leg fixation component via the knee joint hinge component. The knee joint hinge component is adjustable in flexion angle and is positioned at the corresponding position on the patient's knee joint. The knee joint hinge component includes a limiting mechanism that selectively locks or releases the flexion angle to fix the leg in a straight position (suitable for the early postoperative rehabilitation stage, effectively avoiding wound traction caused by knee flexion). The traction component is connected to the second leg fixation component and drives the first and second leg fixation components to complete reciprocating flexion and extension movements through traction force transmission. The patient can achieve autonomous knee joint training by actively pulling the traction component. This device significantly improves training safety through an adjustable hinge mechanism, greatly improves rehabilitation efficiency through an all-weather convenient operation design, and has a streamlined and reliable overall structure, effectively reducing nursing costs.

[0024] In one specific embodiment of this utility model, the first leg fixation assembly includes: a first plate 1, a first strap 2, a first guard plate 3, and a first D-ring 4; one end of the first strap 2 is fixedly installed on one side surface of the first plate 1, the first guard plate 3 is sleeved on the outside of the first strap 2, and the first D-ring 4 is fixedly installed on the other side of the first plate 1 away from the first strap 2. The free end of the first strap 2 slides through the inner guide rail of the first D-ring 4. Generally, the first leg fixation assembly is used to bind the thigh. In use, the first plate 1 is placed against the upper part of the patient's thigh, ensuring that its long axis is aligned with the direction of the thigh bone. The first guard plate 3 covers the posterior thigh muscle group, forming a flexible pressure buffer layer. The free end of the first strap 2 passes through the inner guide rail of the first D-ring 4, forming a closed-loop restraint structure.

[0025] The second leg fixation assembly includes: a second plate 8, a second strap 9, a second guard plate 10, and a second D-ring 11. One end of the second strap 9 is fixedly installed on one side of the second plate 8. The second guard plate 10 is fitted over the outside of the second strap 9. The second D-ring 11 is fixedly installed on the other side of the second plate 8 away from the second strap 9. The free end of the second strap 9 slides through the inner guide rail of the second D-ring 11. Generally, the second leg fixation assembly is used to bind the lower leg. In use, the second plate 8 is placed against the upper part of the patient's lower leg, ensuring that its long axis is aligned with the direction of the lower leg bones. The second guard plate 10 covers the posterior calf muscle group, forming a flexible pressure buffer layer. The free end of the second strap 9 passes through the inner guide rail of the second D-ring 11, forming a closed-loop restraint structure.

[0026] In one embodiment of this invention, the traction assembly includes a pull rope 17, a movable member 16, and symmetrically arranged protruding rods 15. Two sets of protruding rods 15 are respectively installed on both sides of the second plate 8, forming a symmetrical mechanical layout to ensure balanced force distribution on the leg. The movable member 16 is rotatably connected to the protruding rods 15, and each movable member 16 is fixed to the end of an independent pull rope 17. The patient can drive knee flexion and extension movements by simultaneously pulling the pull ropes 17 on both sides with both hands. By adjusting the length of the pull ropes 17, the range of motion of the joint can be precisely controlled to adapt to the training needs of different rehabilitation stages, thereby improving the accuracy of rehabilitation.

[0027] In a preferred embodiment, the traction assembly is further equipped with a fixed rod 18 and a handle 19. One end of the pull rope 17 is fixed to the movable part 16, and the other end is connected to the detachable handle 19 via the fixed rod 18. The distal end of the fixed rod 18 is provided with an external thread structure, and the proximal end of the handle 19 is provided with a matching threaded blind hole, achieving axial fixation through thread engagement. The two pull ropes 17 are symmetrically connected to both ends of the fixed rod 18, forming a force couple transmission mechanism to ensure synchronous force application. The grip part of the handle 19 is machined with anti-slip texture (texture depth 0.8-1.2mm) to enhance operational safety. At the same time, the fixed rod 18 provides a winding length adjustment function for the pull rope 17, allowing the patient to flexibly adjust the traction stroke according to the rehabilitation progress.

[0028] In one specific embodiment of this utility model, there are two sets of knee joint hinge assemblies, respectively disposed on both sides of the first plate 1 and the second plate 8, and the two ends of the knee joint hinge assemblies are respectively connected to the side ends of the first plate 1 and the second plate 8. In use, the two sets of knee joint hinges are located on both sides of the knee joint. The knee joint hinge assembly includes a first connector 5, a second connector 7, and a shaft 6, wherein one end of the first connector 5 is fixedly installed on one side of the first plate 1, and its other end is fixedly connected to one end of the shaft 6; one end of the second connector 7 is rotatably sleeved on the outside of the shaft 6, and its other end is fixedly connected to the second plate 8.

[0029] In one specific embodiment of this utility model, the limiting mechanism includes: a stud, a cover plate 12, a rotating handle 13, insert rods 14, and a limiting frame 20. The shaft 6 has a threaded channel matching the stud. The limiting frame 20 is sleeved on the non-threaded section of the stud. Specifically, the limiting frame 20 has a hole with a diameter larger than the stud diameter. One non-threaded end of the stud passes through the hole and is fixedly connected to the cover plate 12, while the other end engages with the threaded section inside the shaft 6 to form a threaded adjustment mechanism. The surface of the cover plate 12 is fixedly connected to the rotating handle 13, and the cover plate 12 can limit the limiting frame 20, preventing it from falling off. A pair of insert rods 14 are symmetrically fixed to both sides of the limiting frame 20. By rotating the rotating handle 13, the stud is driven to move axially, causing the cover plate 12 to press against or move away from the limiting frame 20, thereby allowing the insert rods 14 to simultaneously insert into or disengage from the corresponding limiting holes of the first connecting member 5 and the second connecting member 7 in both directions. When the insertion rod 14 is inserted into the limiting holes of the first connector 5 and the second connector 7, the knee joint hinge mechanism is completely rigidly fixed. At this time, the first plate 1 and the second plate 8 are aligned in a straight line (i.e., the leg is straight). This state is suitable for the early postoperative rehabilitation stage to avoid wound traction caused by knee flexion, while ensuring efficient transmission of traction force along the limb axis.

[0030] By rotating the handle 13 to retract the stud, the top of the cover plate 12 is moved away from the limit bracket 20, thereby disengaging the insertion rod 14 from the connector hole, allowing the knee joint hinge to move freely (0°-120° flexion-extension range). In this mode, the patient can achieve active control of progressive flexion-extension training by pulling the handle 19, simulating the joint movement trajectory during the walking cycle.

[0031] Usage steps:

[0032] In the early stages of patient recovery, the thigh is secured using the first leg fixation component, and the lower leg is secured using the second leg fixation component. The insertion rod 14 is manually inserted into the limiting hole, and then the rotating handle 13 drives the stud to move axially, causing the top of the cover plate 12 to press against the limiting frame 20, thereby completely and rigidly fixing the knee joint hinge mechanism. At this time, the first and second leg fixation components are taut, effectively preventing wound traction caused by knee flexion.

[0033] In the later stages of patient rehabilitation, leg flexion and extension exercises are required. Rotating the handle 13 drives the stud to move axially, causing the cover plate 12 away from the limiting frame 20. This allows the insert rod 14 to be manually disengaged from the corresponding limiting holes of the first connector 5 and the second connector 7, thus unlocking the knee joint hinge mechanism. Finally, pulling the handle 20 lifts the second plate 8, causing the patient's leg to bend upwards. This cyclical upward bending of the leg stretches the leg, improving the patient's leg rehabilitation progress. Furthermore, the exercise can be performed in bed, increasing convenience and allowing rehabilitation training to be conducted at any time.

[0034] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

[0035] In the description of this specification, the references to terms such as "an embodiment," "some embodiments," "example," "specific example," "a specific embodiment," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A leg rehabilitation care device characterized by, include: The system comprises a first leg fixation component, a second leg fixation component, a knee joint hinge component, and a traction component. The first leg fixation component is movably connected to the second leg fixation component via the knee joint hinge component. The knee joint hinge component is adjustable in its flexion angle and includes an operable limiting mechanism for selectively locking or releasing the flexion angle. The traction component is connected to the second leg fixation component and drives the first and second leg fixation components to perform reciprocating flexion and extension movements through traction force transmission.

2. The leg rehabilitation nursing device according to claim 1, characterized in that: The traction assembly includes a pull rope (17), a movable part (16), and a protruding rod (15); there are two protruding rods (15), which are symmetrically installed on both sides of the second leg fixing assembly. The movable part (16) is rotatably connected to the protruding rod (15), and the movable part (16) is fixedly connected to the pull rope (17).

3. The leg rehabilitation device according to claim 1, characterized in that: The knee joint hinge assembly further includes a first connector (5), a second connector (7), and a shaft (6), wherein one end of the first connector (5) is fixedly installed on one side of the first leg fixation assembly, and the other end is fixedly connected to one end of the shaft (6); one end of the second connector (7) is rotatably sleeved on the outside of the shaft (6), and the other end is fixedly connected to the second leg fixation assembly.

4. The leg rehabilitation device according to claim 3, characterized in that: The limiting mechanism includes: a stud, a cover plate (12), a handle (13), a rod (14), and a limiting frame (20); the shaft (6) has a threaded channel that matches the stud inside, the limiting frame (20) is sleeved on the non-threaded section of the stud, one end of the non-threaded section of the stud is fixedly connected to the cover plate (12), and the other end is threaded with the thread inside the shaft (6) to form a threaded adjustment mechanism, the surface of the cover plate (12) is fixedly connected to the handle (13), and the cover plate (12) is used to limit the limiting frame (20); a pair of rods (14) are symmetrically fixed on both sides of the limiting frame (20), and the stud is driven to move axially by rotating the handle (13), so that the rods (14) are inserted into or disengaged from the corresponding limiting holes of the first connecting member (5) and the second connecting member (7) in both directions synchronously.

5. The leg rehabilitation device of claim 1, wherein: The first leg fixing assembly includes a first plate (1), a first strap (2), a first guard plate (3), and a first buckle (4); one end of the first strap (2) is fixedly installed on one side surface of the first plate (1), the first guard plate (3) is sleeved on the outside of the first strap (2), the first buckle (4) is fixedly installed on the other side of the first plate (1) away from the first strap (2), and the free end of the first strap (2) slides through the inner guide rail of the first buckle (4).

6. The leg rehabilitation device of claim 1, wherein: The second leg fixing assembly includes a second plate (8), a second strap (9), a second guard plate (10), and a second D-ring (11); One end of the second strap (9) is fixedly installed on one side of the second plate (8), the second guard plate (10) is sleeved on the outside of the second strap (9), the second buckle (11) is fixedly installed on the other side of the second plate (8) away from the second strap (9), and the free end of the second strap (9) slides through the inner guide rail of the second buckle (11).

7. The leg rehabilitation device of claim 2, wherein: The traction assembly also includes a fixing rod (18) and a handle (19); One end of the pull rope (17) is fixed to the movable part (16), and the other end is connected to the handle (19) via the fixed rod (18). The handle (19) and the fixed rod (18) adopt a detachable connection structure. The fixed rod (18) has an external thread at its far end, and the handle (19) has a matching threaded blind hole at its near end. The two are axially fixed by threaded engagement.

8. The leg rehabilitation device according to claim 7, characterized in that: The handle (19) has anti-slip texture on the grip portion.

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