Knee joint bidirectional rehabilitation traction device
By designing a two-way rehabilitation traction device for knee joints that simulates walking movements, using pneumatic telescopic rods and connecting rod systems to bidirectionally draw and separate the patient's legs, the problem that existing devices can only be trained locally is solved, effectively training the muscles and joints of the whole leg is achieved, and the rehabilitation effect is significantly improved.
Patent Information
- Application Number
- CN202421622110.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-10
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-07-10
AI Technical Summary
The existing knee rehabilitation training device can only perform local knee flexion training on the knee joint, resulting in a single force form and limited movement areas, so that the entire leg cannot be comprehensively trained.
A two-way rehabilitation traction device for knee joints is designed. By simulating walking movements, using pneumatic telescopic rods and connecting rod systems, the patient's legs are stretched and separated in both directions, increasing the mobility of the knee joints, and effectively training the whole leg muscles and joints through the combination of traction and knee flexion training.
This device can simulate walking movements to train the muscle groups around the knee joint, increase the mobility of the knee joint, and achieve effective stretching and activity training for the muscles and joints of the whole leg, achieving better rehabilitation results.
Smart Images
Figure CN222899418U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical devices, in particular to a two-way knee joint rehabilitation traction device. Background Art
[0002] For knee joint rehabilitation training devices, the usual structural method is to fix the thigh and the calf, and connect a reciprocating mechanism between the thigh and the calf, so that the knee joint is tractioned on both sides of the femur and the tibia, thereby realizing the functional recovery of the knee joint. However, when using the existing knee joint rehabilitation training device for knee joint rehabilitation training, only the local flexion exercise of the knee joint can be carried out, and the whole leg cannot be comprehensively trained. The leg muscles and joints of the patient cannot be effectively stretched and moved. Therefore, there are defects such as a single form of leg force and limited movement parts during rehabilitation training.
[0003] To obtain better rehabilitation effects, not only the local joints and muscles need to be trained, but also the muscle groups around the knee joint need to be trained. In addition, during knee joint function training, the joint needs to be placed in the functional position through traction to facilitate joint movement and relieve muscle spasm. Summary of the Utility Model
[0004] The purpose of the utility model is to propose a two-way knee joint rehabilitation traction device, which can effectively traction, stretch and move-train the whole-leg muscles and joints of the patient by simulating walking movements, so as to solve the defects that the existing knee joint rehabilitation training device can only carry out local flexion movement training on the knee joint, with a single form of leg force and limited movement parts.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] Design a two-way knee joint rehabilitation traction device, including a base, a driving component is arranged on the base, a curved rod is hinged on one side of the base, a first connecting rod is hinged at the top of the curved rod, a second connecting rod is arranged on the first connecting rod, a connecting component is arranged between the first connecting rod and the second connecting rod, a foot pedal is arranged at one end of the second connecting rod, a third connecting rod is hinged at one end of the first connecting rod, a rotating rod is hinged between the third connecting rod and the curved rod, the driving component is connected with the connecting block, and straps are arranged on the first connecting rod, the second connecting rod, the third connecting rod and the foot pedal.
[0007] Preferably, the connecting component includes a connecting block arranged at one end of the first connecting rod, a pin is placed on one side of the connecting block, and the pin penetrates through the connecting block and abuts against the second connecting rod.
[0008] Preferably, the driving assembly includes a first pneumatic telescopic rod and a second pneumatic telescopic rod which are sequentially hinged on the top of the base. There is a gap between the first pneumatic telescopic rod and the second pneumatic telescopic rod. One end of the first pneumatic telescopic rod is hinged on the second pneumatic telescopic rod, and one end of the second pneumatic telescopic rod is hinged on the connecting block.
[0009] Preferably, the curved rod is set as a solid rod.
[0010] Preferably, the first connecting rod, the second connecting rod and the third connecting rod are all set as hollow rods.
[0011] Preferably, placing plates are arranged at the bottoms of the straps at the first connecting rod, the second connecting rod and the third connecting rod.
[0012] The beneficial effects of the knee joint bidirectional rehabilitation traction device proposed by the present utility model are as follows:
[0013] 1. The device can make the first connecting rod, the second connecting rod and the third connecting rod be in the same horizontal plane or conform to the natural curvature of the patient's leg by controlling the lengths of the first pneumatic telescopic rod and the second pneumatic telescopic rod. Then, a small contraction of the first pneumatic telescopic rod is used to generate a traction effect, realizing bidirectional stretching and separation of the leg, increasing the joint space of the tibiofemoral joint, and further increasing the joint mobility of the knee joint. Before and after the flexion leg training, it is necessary to place the joint in the functional position through traction to facilitate joint movement and relieve muscle spasm.
[0014] 2. The device can form a walking-like movement of the leg by controlling the simultaneous telescoping of the first pneumatic telescopic rod and the second pneumatic telescopic rod. It can not only train local joints and muscles, but also train the muscle groups around the knee joint. Training the whole leg by simulating walking movement is more beneficial for rehabilitation.
[0015] 3. The knee joint bidirectional rehabilitation traction device fixes the patient's thigh, calf and ankle respectively, and adjusts the length by using the connecting block, which is applicable to patients with different body types and is convenient to use.
[0016] 4. During the process of the patient's knee flexion movement, the foot will also exert a certain force, and the driving assembly will assist the patient to move together, thereby reducing the movement difficulty of the patient, making the patient's thigh, foot and calf all move. Through traction combined with simulating walking movement, the whole leg muscles and joints are trained to obtain better rehabilitation effects, thus facilitating the recovery of the patient's knee joint. Description of the Drawings
[0017] Figure 1 is a structural schematic diagram of the knee joint bidirectional rehabilitation traction device proposed by the present utility model Figure 1 .
[0018] Figure 2 Structural schematic of the knee joint bidirectional rehabilitation traction device proposed by the present utility model Figure 2 .
[0019] Figure 3 Structural schematic of a partial structural sectional view of the knee joint bidirectional rehabilitation traction device proposed by the present utility model.
[0020] In the figure: 1. Base; 2. First pneumatic telescopic rod; 3. Second pneumatic telescopic rod; 4. Curved rod; 5. First connecting rod; 6. Connecting block; 7. Second connecting rod; 8. Footrest; 9. Third connecting rod; 10. Rotating rod; 11. Pin; 12. Strapping; 13. Placing plate. Specific implementation manners
[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.
[0022] Embodiment 1: Refer to Figures 1 - 3 , the knee joint bidirectional rehabilitation traction device includes a base 1. There is a driving component arranged on the base 1. One side of the base 1 is hinged with a curved rod 4. The top of the curved rod 4 is hinged with a first connecting rod 5. The first connecting rod 5 is provided with a second connecting rod 7. A connecting component is arranged between the first connecting rod 5 and the second connecting rod 7. One end of the second connecting rod 7 is hinged with a footrest 8. One end of the first connecting rod 5 is hinged with a third connecting rod 9. A rotating rod 10 is hinged between the third connecting rod 9 and the curved rod 4. The driving component is connected to the connecting block 6. Strappings 12 are arranged on the first connecting rod 5, the second connecting rod 7, the third connecting rod 9, and the footrest 8. The connecting component includes a connecting block 6 arranged at one end of the first connecting rod 5. A pin 11 is placed on one side of the connecting block 6. The pin 11 penetrates through the connecting block 6 and abuts against the second connecting rod 7. The driving component includes a first pneumatic telescopic rod 2 and a second pneumatic telescopic rod 3 that are sequentially hinged on the top of the base 1. There is a gap between the first pneumatic telescopic rod 2 and the second pneumatic telescopic rod 3. One end of the first pneumatic telescopic rod 2 is hinged on the second pneumatic telescopic rod 3. One end of the second pneumatic telescopic rod 3 is hinged on the connecting block 6.
[0023] Combined with the attached Figures 1 - 3, the first pneumatic telescopic rod 2 and the second pneumatic telescopic rod 3 set together with the base 1 form a triangle. Thus, after the length of the extension rod of the first pneumatic telescopic rod 2 changes, the second pneumatic telescopic rod 3 will perform a circular motion around the base 1, so that the direction of the second pneumatic telescopic rod 3 can be changed. After the direction of the second pneumatic telescopic rod 3 changes, the extension rod of the second pneumatic telescopic rod 3 will drive the connecting block 6 to move, so that the connecting block 6 drives the first connecting rod 5, the second connecting rod 7, the third connecting rod 9, and the foot pedal 8 to move together. Moreover, the third connecting rod 9 will perform a circular motion around the curved rod 4 during the movement, so that most of the patient's leg is in a bent state and a small amount is in a flat state, and the number of repetitions of the patient's movement trajectory is lower. Thus, during the process of the patient's knee joint repeatedly flexing, the movement of the patient's knee joint is more like that of a normal person.
[0024] Combined with the attached Figures 1 - 3 , the second connecting rod 7 is slidably penetrated through the connecting block 6. Combined with the extrusion of the second connecting rod 7 by the pin 11, the length of the second connecting rod 7 can be adjusted, so that the device is more suitable for people of various heights.
[0025] After fixing the patient's thigh, calf, ankle and foot to the third connecting rod 9, the first connecting rod 5, the second connecting rod 7, and the foot pedal 8 respectively through the straps 12, two rehabilitation training methods of traction and knee flexion can be selected.
[0026] Traction training: Control the telescopic lengths of the first pneumatic telescopic rod 2 and the second pneumatic telescopic rod 3, so that the first connecting rod 5, the second connecting rod 7, and the third connecting rod 9 are in the same horizontal plane or conform to the natural curvature of the patient's leg. At this time, slowly contract the first pneumatic telescopic rod 2 while keeping the length of the second pneumatic telescopic rod 3 unchanged, and the entire leg can be tractioned.
[0027] Knee flexion training: The first pneumatic telescopic rod 2 and the second pneumatic telescopic rod 3 work simultaneously, so that the patient's thigh, calf, and ankle form a continuous walking-like movement, and the muscles and joints of the patient's thigh, calf, and ankle are evenly stretched and bent, which is convenient for the rehabilitation of the patient's knee joint and leg muscles. During the process of the patient's knee bending, a certain force will also be exerted on the patient's foot, thus reducing the difficulty of the patient's movement.
[0028] Embodiment 2: Optimized on the basis of Embodiment 1, referring to Figures 1 - 3 , the curved rod 4 is set as a solid rod, the first connecting rod 5, the second connecting rod 7, and the third connecting rod 9 are all set as hollow rods, and placing plates 13 are arranged at the bottoms of the straps 12 at the first connecting rod 5, the second connecting rod 7, and the third connecting rod 9.
[0029] The curved rod 4 is set as a solid rod to make the curved rod 4 stronger in strength, so that the curved rod 4 is not easily bent. The first connecting rod 5, the second connecting rod 7, and the third connecting rod 9 are all set as hollow rods, so as to reduce the overall weight of the device and facilitate the transportation of the device.
[0030] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.
Claims
1. A knee joint bidirectional rehabilitation traction device, comprising a base (1), characterized in that: The base (1) is provided with a driving assembly, a curved rod (4) is hinged on one side of the base (1), a first connecting rod (5) is hinged on the top of the curved rod (4), a second connecting rod (7) is provided on the first connecting rod (5), a connecting assembly is provided between the first connecting rod (5) and the second connecting rod (7), a foot pedal (8) is provided at one end of the second connecting rod (7), a third connecting rod (9) is hinged on one end of the first connecting rod (5), a rotating rod (10) is hinged between the third connecting rod (9) and the curved rod (4), the driving assembly is connected to a connecting block (6), and straps (12) are provided on the first connecting rod (5), the second connecting rod (7), the third connecting rod (9) and the foot pedal (8).
2. The knee joint bidirectional rehabilitation traction device according to claim 1, characterized in that: The connection assembly comprises a connection block (6) arranged at one end of the first connection rod (5), a latch (11) being placed on one side of the connection block (6), the latch (11) passing through the connection block (6) and abutting against the second connection rod (7).
3. The knee joint bidirectional rehabilitation traction device according to claim 2, characterized in that: The driving assembly comprises a first pneumatic telescopic rod (2) and a second pneumatic telescopic rod (3) which are hinged in sequence on the top of the base (1); there is a gap between the first pneumatic telescopic rod (2) and the second pneumatic telescopic rod (3); one end of the first pneumatic telescopic rod (2) is hinged on the second pneumatic telescopic rod (3); and one end of the second pneumatic telescopic rod (3) is hinged on the connecting block (6).
4. The knee joint bidirectional rehabilitation traction device according to claim 1, characterized in that: The curved rod (4) is configured as a solid rod.
5. The knee joint bidirectional rehabilitation traction device according to claim 1, characterized in that: The first connecting rod (5), the second connecting rod (7) and the third connecting rod (9) are all configured as hollow rods.
6. The knee joint bidirectional rehabilitation traction device according to claim 1, characterized in that: A placement plate (13) is provided at the bottom of the binding belt (12) at the first connecting rod (5), the second connecting rod (7) and the third connecting rod (9).