Wearable knee joint rehabilitation device
By designing a wearable knee rehabilitation device with adjusting card pins and spring tension, the problem that existing equipment cannot dynamically adjust its adversity is solved, and personalized training needs for patients with different levels of recovery are achieved, improving the effectiveness and portability of training.
Patent Information
- Application Number
- CN202420917473.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-29
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-04-29
AI Technical Summary
Existing knee rehabilitation training equipment cannot dynamically adjust the adversity according to the needs of patients, resulting in the inability to meet the personalized training needs of patients with different levels of recovery.
A wearable knee rehabilitation device is designed to achieve free adjustment of impedance through components such as thigh guard plates, calf guard plates, straps, shells, sliders, springs, pull belts and lock pins. The patient can adjust the position of the lock according to the needs, thereby changing the tension of the slider and spring and adjusting the impedance force.
It realizes free adjustment of the impedance force during leg and knee movement, adapts to the needs of patients with different levels of recovery, improves the personalization and effectiveness of training, and at the same time, the device is small and flexible, the structure is simple, and easy to carry.
Smart Images
Figure CN222605331U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical equipment, in particular to a wearable knee joint rehabilitation device. Background Art
[0002] In the diagnosis and treatment process of orthopedic patients, rehabilitation functional exercise has gradually become an important part of treating fractures. The so-called rehabilitation functional exercise refers to the fact that in addition to the doctor's treatment, the patient's own exercise, massage, muscle stretching, and joint movement to restore normal limb activities in bone and joint injuries are called rehabilitation functional exercise. It mainly targets the leg muscles and joints, and can prevent the patient from experiencing leg muscle atrophy and mobility problems after recovery. Since certain rehabilitation training is required after surgical treatment of fractures, rehabilitation functional exercise can also promote the recovery of the affected limb function.
[0003] Usually after knee surgery, most patients will experience atrophy of the quadriceps, so exercising the quadriceps is an important and necessary part of the rehabilitation stage after knee surgery. Leg muscle training mainly focuses on the quadriceps and biceps femoris, and resistance training is the main training method to overcome resistance and activate the muscles. The operator presses the patient's thigh with one hand and asks the patient to lift his calf upward, using the strength of his hand to resist the patient's leg. Nowadays, special equipment for knee joint and leg muscle training for fracture patients is usually modified based on common fitness equipment. Usually, columnar steel equipment is placed above the patient's calf. The patient lifts his calf upward and uses the gravity of the equipment to resist the force.
[0004] The above-mentioned rehabilitation training equipment is not only bulky, but also can only rely on fixed gravity to resist the strength of the legs. For patients with different recovery levels, the required resistance force is also different. Therefore, the current training equipment cannot adaptively adjust the resistance force according to the needs of patients. Utility Model Content
[0005] The utility model provides a wearable knee joint rehabilitation device, which is small and flexible, has a simple structure, can freely adjust the impedance force of the leg knee during movement, and the adjustment method is more portable.
[0006] The utility model provides a wearable knee joint rehabilitation device, comprising: a thigh guard, a calf guard, a plurality of straps, a shell, a slider, a spring, and a drawstring. The thigh guard is in the shape of a semicircular shell, the calf guard is in the shape of a semicircular shell, and the end is hinged to the end of the thigh guard through a hinge shaft. A plurality of straps are respectively arranged on the thigh guard and the calf guard to fix the patient's thigh to the thigh guard and the calf to the calf guard. The shell is fixedly connected to the arc-shaped outer wall of the thigh guard. The shell is arranged in a rectangular shape and the length extension direction is parallel to the axis of the thigh guard. A through groove is provided at the bottom of the shell, and a plurality of waist-shaped holes are provided on both sides of the shell in the horizontal direction. The waist-shaped holes are inclined, with one side close to the hinge shaft and the other side away from the hinge shaft. The sides of each waist-shaped hole away from the hinge shaft are connected through a horizontal groove. The slider is slidably connected to the shell, and a spring is fixedly connected to the side of the slider away from the calf guard. The other end of the spring is fixedly connected with a horizontal bayonet, and the bayonet is used to be clamped into the waist-shaped hole. One end of the drawstring passes through the through groove and is connected to the slider, and the other end is connected to the calf guard.
[0007] Preferably, the drawstring is elastic, connected to a side of the calf guard away from the hinge shaft, and when the thigh guard and the calf guard are perpendicular to each other, the acute angle between the drawstring and the horizontal plane is 30°-45°.
[0008] Preferably, both ends of the drawstring are detachably connected to the slider and the calf guard respectively.
[0009] Preferably, the calf guard is fixedly connected to a first hook, the slider is fixedly connected to a second hook, the drawstring is a closed-loop belt, both ends of the drawstring are respectively connected to the first hook, and the other end is connected to the second hook.
[0010] Preferably, both ends of the bayonet are fixedly connected with handle columns.
[0011] Preferably, the thigh guard and the calf guard are both made of PP plastic.
[0012] Compared with the prior art, the beneficial effect of the utility model lies in: the thigh guard is placed at the bottom of the patient's thigh, and the calf guard is placed at the patient's calf muscle group, and both are fixed to the patient's leg by straps. According to the patient's demand for leg knee flexion and rotation impedance, the pin can be clamped in a pair of waist-shaped holes at different positions. When the patient's calf is raised upward, the drawstring will pull the slider to slide along the shell toward the hinge axis. At this time, the spring will give the slider a gradually increasing pulling force, which can be used as the impedance force for the patient's leg rehabilitation training. When a smaller impedance force is required, the pin can be moved close to the waist-shaped hole at the hinge axis. If a strong impedance force is required, the waist-shaped hole is slid toward the horizontal groove direction, and then the pin is clamped in the waist-shaped hole away from the hinge axis. At this time, the patient lifts his calf, the greater the pulling force of the spring, and thus the greater the reset force, thereby increasing the impedance. The device is not only small and flexible, simple in structure, but also can realize the free adjustment of the impedance force during leg knee movement, and the adjustment method is more portable. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 A partial structural schematic diagram of a wearable knee joint rehabilitation device provided by an embodiment of the utility model;
[0014] Figure 2 A partial structural schematic diagram of a wearable knee joint rehabilitation device provided by an embodiment of the utility model;
[0015] Figure 3 A side view schematic diagram of a wearable knee joint rehabilitation device provided by an embodiment of the utility model;
[0016] Figure 4 for Figure 1 A partial enlarged view of part A;
[0017] Figure 5 for Figure 2 A partial enlarged view of part B.
[0018] Description of reference numerals:
[0019] 1. Thigh guard; 2. Calf guard; 21. First hook; 3. Hinge; 4. Strap; 5. Shell; 51. Through slot; 52. Waist-shaped hole; 53. Horizontal slot; 6. Slider; 61. Second hook; 7. Spring; 8. Pin; 81. Handle column; 9. Drawstring. DETAILED DESCRIPTION
[0020] A specific implementation of the present utility model is described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present utility model is not limited by the specific implementation mode.
[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the technical solution of the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0022] refer to Figure 1 , Figure 3 and Figure 5 The utility model provides a wearable knee joint rehabilitation device, comprising: a thigh guard 1, a calf guard 2, a plurality of straps 4, a shell 5, a slider 6, a spring 7, and a drawstring 9. The thigh guard 1 is in a semicircular shell shape, the calf guard 2 is in a semicircular shell shape, and the end is hinged to the end of the thigh guard 1 through a hinge shaft 3. A plurality of straps 4 are respectively arranged on the thigh guard 1 and the calf guard 2 to fix the patient's thigh to the thigh guard 1 and the calf to the calf guard 2. The shell 5 is fixedly connected to the arc-shaped outer wall of the thigh guard 1. The shell 5 is arranged in a rectangular shape and the length extension direction is parallel to the axis of the thigh guard 1. The shell A through groove 51 is provided below 5, and a plurality of waist-shaped holes 52 are provided on both sides of the shell 5 in the horizontal direction. The waist-shaped holes 52 are inclined, with one side close to the hinge shaft 3 and the other side away from the hinge shaft 3. The sides of each waist-shaped hole 52 away from the hinge shaft 3 are connected through a horizontal groove 53. The slider 6 is slidably connected to the shell 5, and the spring 7 is fixedly connected to the side of the slider 6 away from the calf guard 2. The other end of the spring 7 is fixedly connected with a horizontal bayonet 8, and the bayonet 8 is used to be stuck in the waist-shaped hole 52. One end of the drawstring 9 passes through the through groove 51 and is connected to the slider 6, and the other end is connected to the calf guard 2.
[0023] In the above embodiment, the thigh guard 1 is placed on the bottom of the patient's thigh, and the calf guard 2 is placed on the patient's calf muscle group, and both are fixed to the patient's leg through a strap 4. Specifically, the strap 4 can be a cloth belt wrapped, a rope bundle, or a bevel groove tooth assembly similar to roller skates. After being fixed to the patient's leg, the pin 8 can be clamped into a pair of waist-shaped holes 52 at different positions according to the patient's demand for leg knee flexion resistance. When the patient's calf is lifted upward, the drawstring 9 will pull the slider 6 to slide along the shell 5 in the direction of the hinge shaft 3. At this time, the spring 7 will give the slider 6 a gradual The gradually increasing pulling force can be used as the impedance force for the patient's leg rehabilitation training. When a smaller impedance force is needed, the pin 8 can be moved close to the waist-shaped hole 52 at the hinge shaft 3. If a strong impedance force is needed, the waist-shaped hole 52 can be slid toward the horizontal groove 53, and then the pin 8 can be stuck in the waist-shaped hole 52 away from the hinge shaft 3. At this time, the patient lifts his calf, the pulling force of the spring 7 is greater, and thus the reset force is also greater, thereby increasing the impedance force. The device is not only small and flexible, simple in structure, but also can realize the free adjustment of the impedance force during leg knee movement, and the adjustment method is more portable.
[0024] Further, refer to Figure 3 The drawstring 9 is elastic and connected to the side of the calf guard 2 away from the hinge shaft 3. When the thigh guard 1 and the calf guard 2 are perpendicular to each other, the acute angle between the drawstring 9 and the horizontal plane is 30°-45°.
[0025] In the above embodiments, the drawstring 9 is elastic and can increase the range of leg lifting on the basis of the spring 7 and the slider 6 compared to non-deformable and non-stretchable materials, so that the patient's legs can increase the range of motion and increase multiple strengths.
[0026] Further, refer to Figure 3 The two ends of the drawstring 9 are detachably connected to the slider 6 and the calf guard plate 2 respectively.
[0027] In the above embodiments, considering that the "L"-shaped structure takes up a lot of space when the patient does not use it and needs to store it, the drawstring 9 can be removed and the shape of the calf guard 2 and the thigh guard 1 can be adjusted to save space and facilitate storage.
[0028] Further, refer to Figure 2 and Figure 3 The calf guard 2 is fixedly connected to a first hook 21, the slider 6 is fixedly connected to a second hook 61, and the drawstring 9 is a closed-loop belt, with both ends of the drawstring 9 respectively connected to the first hook 21, and the other end connected to the second hook 61.
[0029] In the above embodiments, the opening direction of the first hook 21 is opposite to the opening direction of the second hook 61, and the drawstring 9 is a closed-loop belt similar to a rubber band, which can be hung on the first hook 21 and the second hook 61 at the same time to complete the connection between the calf guard 2 and the thigh guard 1.
[0030] Further, refer to Figure 1 , Figure 4 and Figure 5 Both ends of the bayonet 8 are fixedly connected with handle columns 81.
[0031] In the above embodiments, the handle columns 81 are provided to facilitate the patient to adjust the latch 8 , and the adjustment can be made by pinching the two handle columns 81 with the index finger and thumb respectively.
[0032] Further, refer to Figure 1 The thigh guard 1 and the calf guard 2 are both made of PP plastic.
[0033] In the above embodiments, by limiting the material of the thigh guard 1 and the calf guard 2 to plastic material, the weight can be reduced, which is convenient for patients to train and wear, and at the same time can reduce costs, which has the value of promoting production.
[0034] The above disclosures are only several specific embodiments of the present invention. However, the embodiments of the present invention are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present invention.
Claims
1. A wearable knee joint rehabilitation device, characterized in that: include: The thigh guard (1) is in the shape of a semicircular shell; The calf guard (2) is in the shape of a semicircular shell, and the end thereof is hingedly connected to the end of the thigh guard (1) via a hinge shaft (3); A plurality of straps (4) are respectively arranged on the thigh guard (1) and the calf guard (2) to fix the patient's thigh to the thigh guard (1) and the calf to the calf guard (2); A shell (5) is fixedly connected to the arc-shaped outer wall of the thigh guard (1). The shell (5) is rectangular and its length extension direction is parallel to the axis of the thigh guard (1). A through groove (51) is provided at the bottom of the shell (5). A plurality of waist-shaped holes (52) are provided on both sides of the shell (5) in the horizontal direction. The waist-shaped holes (52) are inclined, with one side close to the hinge shaft (3) and the other side away from the hinge shaft (3). The sides of each waist-shaped hole (52) away from the hinge shaft (3) are connected through a horizontal groove (53); A slider (6) slidably connected inside the housing (5); A spring (7) is fixedly connected to a side of the slider (6) away from the calf guard (2), and the other end of the spring (7) is fixedly connected to a horizontal bayonet (8), and the bayonet (8) is used to be locked into the waist-shaped hole (52); A drawstring (9) has one end passing through the through slot (51) and connected to the slider (6), and the other end connected to the calf guard plate (2).
2. A wearable knee joint rehabilitation device as claimed in claim 1, characterized in that: The drawstring (9) is elastic and connected to a side of the calf guard (2) away from the hinge shaft (3). When the thigh guard (1) and the calf guard (2) are perpendicular to each other, the acute angle between the drawstring (9) and the horizontal plane is 30°-45°.
3. A wearable knee joint rehabilitation device as claimed in claim 2, characterized in that: The two ends of the drawstring (9) are respectively detachably connected to the slider (6) and the calf guard plate (2).
4. A wearable knee joint rehabilitation device as claimed in claim 3, characterized in that: The calf guard (2) is fixedly connected to a first hook (21), the slider (6) is fixedly connected to a second hook (61), the drawstring (9) is a closed-loop belt, the two ends of the drawstring (9) are respectively connected to the first hook (21), and the other end is connected to the second hook (61).
5. A wearable knee joint rehabilitation device as claimed in claim 2, characterized in that: Both ends of the bayonet (8) are fixedly connected with a handle column (81).
6. A wearable knee joint rehabilitation device as claimed in claim 1, characterized in that: The thigh guard (1) and the calf guard (2) are both made of PP plastic.