Knee joint rehabilitation exercise auxiliary equipment for orthopedics department

By designing a knee rehabilitation exercise equipment with a cylinder-driven telescopic rod and a motor-driven transmission gear system, the problems of insufficient adjustment functions and safety of existing equipment are solved, and flexible adjustment of training intensity and patient safety are achieved.

CN120114293AInactive Publication Date: 2025-06-10MEI HOSPITAL UNIV OF CHINESE ACAD OF SCI
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Patent Information

Application Number
CN202510460993.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-14
Publication Date
2025-06-10
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing knee rehabilitation exercise equipment lacks precise adjustment function and cannot adjust the training intensity and exercise angle according to the patient's specific recovery situation, resulting in poor training results and lack of sufficient support and safety protection in the equipment design, which increases the difficulty of rehabilitation.

Method used

An auxiliary equipment for orthopedic knee rehabilitation exercise for orthopedics is designed, using a cylinder-driven telescopic rod and a motor-driven transmission gear system. By adjusting the clamping distance between the resistance plate and the rotor, flexible adjustment of training intensity is achieved, and the stability and safety of the equipment are improved through optimized design.

Benefits of technology

It realizes flexible adjustment of training intensity and resistance according to the patient's different rehabilitation stages, improves the efficiency and effectiveness of rehabilitation training, and ensures the safety and comfort of the patient during use.

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Abstract

The invention relates to the technical field of joint rehabilitation exercise, which comprises a bottom plate, the top of the bottom plate is fixedly connected with a connecting frame, the top of the connecting frame is fixedly connected with a backrest, the top of the connecting frame is fixedly connected with a seat plate, one side of the bottom plate is fixedly connected with a fixing block, and one side of the fixing block is fixedly connected with an air cylinder. A telescopic rod is fixedly connected to the other side of the air cylinder, a rotating rod is rotatably connected to one side of the fixing block, a sliding groove is formed in the bottom plate, a sliding block is slidably connected to the interior of the sliding groove, a transverse plate is slidably connected to the interior of the bottom plate, a vertical plate is fixedly connected to the top of the transverse plate, and a rotating wheel is rotatably connected to the interior of the vertical plate; in the using process of the device, a worker starts an air cylinder to drive a telescopic rod to stretch out and draw back, at the moment, a transverse plate can be driven to slide through the telescopic rod, and therefore the effect of adjusting the using distance of the device is achieved.
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Description

Technical Field

[0001] The present invention relates to the technical field of joint rehabilitation exercises, and particularly to a knee joint rehabilitation exercise assistance device for orthopedics. Background Art

[0002] The knee joint is one of the important moving joints of the human body, bearing the weight of the body and the function of multi-directional movement. However, due to reasons such as trauma, disease, aging, or surgery, the function of the knee joint is often damaged and requires a series of rehabilitation trainings to restore its normal movement function. During the rehabilitation process, the exercise of the knee joint is crucial. Reasonable rehabilitation training can help patients restore joint flexibility, enhance muscle strength, promote joint stability, and reduce the possibility of re-injury in the future.

[0003] Currently, although the common knee joint rehabilitation exercise devices on the market can provide certain auxiliary functions, there are many deficiencies. For example, existing devices generally lack precise adjustment functions and cannot adjust the training intensity and exercise angle according to the specific recovery situation of patients, resulting in some patients suffering secondary injuries due to excessive training intensity in the early stage of rehabilitation, or delaying the rehabilitation process due to insufficient training intensity in the later stage of rehabilitation. Different patients have quite different training requirements at each stage of rehabilitation, and traditional devices often cannot effectively meet such demand differences. In addition, some devices lack sufficient support and safety protection in design, and patients are prone to unnecessary risks due to device instability or inconvenient operation during use, increasing the difficulty of rehabilitation.

[0004] Most of the existing knee joint rehabilitation devices adopt mechanical designs and have relatively single functions, unable to flexibly meet the needs of different rehabilitation stages. For example, patients need lighter resistance training in the early stage of rehabilitation to avoid excessive load, while in the middle and later stages of rehabilitation, they need higher resistance training to enhance the strength and stability of the knee joint. The adjustment methods of existing devices are often relatively complex, and patients and caregivers may feel inconvenient during actual operation, affecting the smooth progress of rehabilitation training. In addition, due to the complex structure and rehabilitation requirements of the knee joint, some devices do not fully consider ergonomics and user comfort during design, resulting in patients feeling uncomfortable during long-term training, further affecting the rehabilitation effect.

[0005] Therefore, there is an urgent need for a new type of knee joint rehabilitation exercise assistance device. This device can not only flexibly adjust the training intensity and resistance according to the different rehabilitation stages of patients, but also provide more stable and safe support to ensure the safety of patients during use. At the same time, the device should have the characteristics of being simple and easy to operate, enabling patients or caregivers to easily adjust the device to meet the rehabilitation needs of different patients. In addition, in order to improve the rehabilitation experience of patients, the device should provide a comfortable ergonomic design as much as possible to reduce the discomfort of patients during use and further improve the rehabilitation effect.

[0006] Therefore, in order to improve the efficiency of knee joint rehabilitation exercises and more accurately adjust the rehabilitation exercise intensity, we designed an orthopedic knee joint rehabilitation exercise assistance device. Summary of the Invention

[0007] The present invention provides the following technical solutions, aiming to solve the problems of positioning during the measurement of children's growth and development and inconvenient standing posture correction during use.

[0008] An orthopedic knee joint rehabilitation exercise assistance device includes a bottom plate. A connecting frame is fixedly connected to the top of the bottom plate. A backrest is fixedly connected to the top of the connecting frame. A seat plate is fixedly connected to the top of the connecting frame. A fixed block is fixedly connected to one side of the bottom plate. A cylinder is fixedly connected to one side of the fixed block. A telescopic rod is fixedly connected to the other side of the cylinder. A rotating rod is rotatably connected to one side of the fixed block. A chute is arranged inside the bottom plate. A slider is slidably connected inside the chute. A horizontal plate is slidably connected inside the bottom plate. A vertical plate is fixedly connected to the top of the horizontal plate. A rotating wheel is rotatably connected inside the vertical plate.

[0009] As a preferred technical solution of the present invention, a support plate is fixedly connected to the bottom of the bottom plate, and a base is fixedly connected to the bottom of the support plate.

[0010] As a preferred technical solution of the present invention, a handle is fixedly connected to the top of the connecting frame, and an armrest is fixedly connected to the top of the handle.

[0011] As a preferred technical solution of the present invention, a soft pad is fixedly connected to the top of the seat plate, and a fitting pad is fixedly connected to the top of the soft pad.

[0012] As a preferred technical solution of the present invention, a fixing plate is fixedly connected to one side of the vertical plate. An operating table is fixedly connected to one end of the fixing plate. A display screen is fixedly connected to one end of the operating table. Operating buttons are fixedly connected to one end of the operating table.

[0013] As a preferred technical solution of the present invention, connecting rods are fixedly connected to both sides of the vertical plate. The other ends of the connecting rods are slidably connected to telescopic plates, and a grip is fixedly connected between the telescopic plates.

[0014] As a preferred technical solution of the present invention, a motor is fixedly connected inside the vertical plate, a hollow plate is fixedly connected to the bottom of the motor, a transmission gear is rotatably connected inside the motor, two rotating teeth are meshed and connected to both sides of the transmission gear, an adjusting plate is rotatably connected to the bottom of the rotating teeth, a clamping plate is rotatably connected inside the adjusting plate, a connecting shaft is rotatably connected to the bottom of the clamping plate, and a resistance plate is rotatably connected to the bottom of the connecting shaft.

[0015] As a preferred technical solution of the present invention, a resistance plate is rotatably connected to the bottom of the connecting shaft, and the resistance plate is made of rubber.

[0016] As a preferred technical solution of the present invention, a friction adjustment mechanism is provided on the resistance plate. The friction adjustment mechanism includes a plurality of friction strips arranged around the surface of the resistance plate. The friction strips are made of detachable materials so as to adjust the resistance effect according to different stages of the patient's rehabilitation.

[0017] Beneficial effects

[0018] Compared with the prior art, the present invention provides an orthopedic knee joint rehabilitation exercise assistance device, which has the following beneficial effects:

[0019] A fixed block is fixedly connected to one side of the bottom plate. When the device is in use, the operator starts the cylinder to drive the telescopic rod to expand and contract. At this time, the cross plate can be driven by the telescopic rod to slide, so as to achieve the effect of adjusting the use distance of the device. In addition, when the cross plate slides inside the bottom plate, the slider slides inside the chute, improving the smooth effect of the device during use. In addition, the rotating rod can be folded according to the use distance of the cross plate, improving the stability effect of the device during use.

[0020] When the device is in use, the operator starts the motor to drive the transmission gear to rotate, drives two rotating teeth to rotate through the transmission gear. At this time, the two adjusting plates and the resistance plate can be driven by the rotating teeth to clamp the rotating wheel, and by adjusting the clamping distance between the resistance plate and the rotating wheel, the stepping force of the device can be adjusted, which is convenient for dealing with the rehabilitation states of different patients. Description of the drawings

[0021] Figure 1 It is a structural schematic diagram of an orthopedic knee joint rehabilitation exercise assistance device of the present invention;

[0022] Figure 2 It is a structural schematic diagram of the fixed block of an orthopedic knee joint rehabilitation exercise assistance device of the present invention;

[0023] Figure 3 It is a structural schematic diagram of the cross plate of an orthopedic knee joint rehabilitation exercise assistance device of the present invention;

[0024] Figure 4Schematic diagram of the resistance plate structure of an auxiliary device for knee joint rehabilitation exercise in orthopedics according to the present invention.

[0025] In the figure:

[0026] 1. Bottom plate; 101. Support plate; 102. Base; 103. Connecting frame; 104. Handle; 105. Armrest; 106. Backrest; 107. Seat plate; 108. Soft pad; 109. Fitting pad; 110. Vertical plate; 111. Operating table; 112. Display screen; 113. Operating button; 114. Fixed plate; 115. Connecting rod; 116. Telescopic plate; 117. Grip; 118. Rotating wheel; 2. Horizontal plate; 201. Fixed block; 202. Cylinder; 203. Telescopic rod; 204. Rotating rod; 205. Chute; 206. Slide block; 3. Motor; 301. Hollow plate; 302. Rotating tooth; 303. Transmission gear; 304. Adjusting plate; 305. Clamping plate; 306. Connecting shaft; 307. Resistance plate. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] Embodiment 1: Refer to Figures 1-4 , an auxiliary device for knee joint rehabilitation exercise in orthopedics, including a bottom plate 1. A connecting frame 103 is fixedly connected to the top of the bottom plate 1. A backrest 106 is fixedly connected to the top of the connecting frame 103. A seat plate 107 is fixedly connected to the top of the connecting frame 103. A fixed block 201 is fixedly connected to one side of the bottom plate 1. A cylinder 202 is fixedly connected to one side of the fixed block 201. A telescopic rod 203 is fixedly connected to the other side of the cylinder 202. A rotating rod 204 is rotatably connected to one side of the fixed block 201. A chute 205 is arranged inside the bottom plate 1. A slide block 206 is slidably connected inside the chute 205. A horizontal plate 2 is slidably connected inside the bottom plate 1. A vertical plate 110 is fixedly connected to the top of the horizontal plate 2. A rotating wheel 118 is rotatably connected inside the vertical plate 110. During the use of the device, the operator starts the cylinder 202 to drive the telescopic rod 203 to expand and contract. At this time, the horizontal plate 2 can be driven to slide by the telescopic rod 203, so as to achieve the effect of adjusting the use distance of the device. In addition, when the horizontal plate 2 slides inside the bottom plate 1, the slide block 206 slides inside the chute 205, improving the smooth effect of the device during use. In addition, the rotating rod 204 can be folded according to the use distance of the horizontal plate 2, improving the stable effect of the device during use.

[0029] Embodiment 2: On the basis of Embodiment 1, refer toFigure 1 and Figure 2 , a support plate 101 is fixedly connected to the bottom of the bottom plate 1, and a base 102 is fixedly connected to the bottom of the support plate 101. The device can keep stable through the support plate 101 and the base 102, improving the stability effect of the device during use. The top of the connecting frame 103 is fixedly connected with a handle 104, and the top of the handle 104 is fixedly connected with a handrail 105. When the device is in use, the device can keep stable through the handle 104 and the handrail 105 when the patient uses it, improving the safety effect of the device during use.

[0030] Embodiment 3: On the basis of Embodiment 1, a soft pad 108 is fixedly connected to the top of the seat board 107, and a fitting pad 109 is fixedly connected to the top of the soft pad 108. When the device is in use, the user sits on the surfaces of the soft pad 108 and the fitting pad 109, improving the comfort effect of the device during use.

[0031] Embodiment 4: Refer to Figure 2 , a fixing plate 114 is fixedly connected to one side of the vertical plate 110, an operating table 111 is fixedly connected to one end of the fixing plate 114, a display screen 112 is fixedly connected to one end of the operating table 111, and an operation button 113 is fixedly connected to one end of the operating table 111. When the device is in use, the device can adjust the internal use distance and clamping resistance of the device through the display screen 112 and the operation button 113, improving the convenience effect of the device during use.

[0032] Embodiment 5: Refer to Figures 1-4 , on the basis of Embodiment 1, connecting rods 115 are fixedly connected to both sides of the vertical plate 110, the other ends of the connecting rods 115 are slidably connected with telescopic plates 116, and a grip 117 is fixedly connected between the telescopic plates 116. When the device is in use, the user can keep the body balanced by holding the grip 117 during the rehabilitation training of stepping, improving the safety effect of the device during use.

[0033] Inside the vertical plate 110, there is a motor 3 fixedly connected. At the bottom of the motor 3, there is a hollow plate 301 fixedly connected. Inside the motor 3, there is a transmission gear 303 rotatably connected. On both sides of the transmission gear 303, there are rotating teeth 302 meshingly connected. At the bottom of the rotating teeth 302, there is an adjusting plate 304 rotatably connected. Inside the adjusting plate 304, there is a clamping plate 305 rotatably connected. At the bottom of the clamping plate 305, there is a connecting shaft 306 rotatably connected. At the bottom of the connecting shaft 306, there is a resistance plate 307 rotatably connected. The staff starts the motor 3 to drive the transmission gear 303 to rotate, drives the two groups of rotating teeth 302 to rotate through the transmission gear 303. At this time, the two groups of adjusting plates 304 and the resistance plate 307 can be driven by the rotating teeth 302 to clamp the runner 118. By adjusting the clamping distance between the resistance plate 307 and the runner 118, the pedaling force of the device can be adjusted. At the bottom of the connecting shaft 306, there is a resistance plate 307 rotatably connected. The material of the resistance plate 307 is rubber. The surfaces of the runner 118 are fitted by the two groups of resistance plates 307, so that the device enhances friction, increases resistance, and improves the stability effect of the device during use.

[0034] Working principle: An orthopedic knee joint rehabilitation exercise assistance device, including a bottom plate 1. The bottom plate 1 serves as the basic support part of the entire device, with stable connection and can provide a solid installation foundation for other components. At the top of the bottom plate 1, there is a support plate 101 fixedly connected. The support plate 101 plays a role in supporting components such as the upper connecting frame 103, and its connection is firm and reliable. At the bottom of the support plate 101, there is a base 102 fixedly connected. The base 102 can increase the stability of the device and prevent it from shaking during use. At the top of the bottom plate 1, there is a connecting frame 103 fixedly connected. The connecting frame 103 serves as the main connecting structure of the device, with good connection performance and can effectively connect each component together. At the top of the connecting frame 103, there is a handle 104 fixedly connected. The handle 104 provides a place for the user to grip during rehabilitation exercises, increasing safety. At the top of the handle 104, there is an armrest 105 fixedly connected. The armrest 105 can make the user more comfortable and stable during the exercise process. At the top of the connecting frame 103, there is a backrest 106 fixedly connected. The backrest 106 provides back support for the user and improves the comfort of use. At the top of the connecting frame 103, there is a seat plate 107 fixedly connected. The seat plate 107 is the place where the user sits, and its surface is flat. At the top of the seat plate 107, there is a soft pad 108 fixedly connected. The soft pad 108 can increase the comfort of the user and relieve the fatigue of sitting for a long time. At the top of the seat plate 107, there is a fitting pad 109 fixedly connected. The fitting pad 109 can better fit the user's body and improve the comfort of use.

[0035] On one side of the bottom plate 1, a horizontal plate 2 is fixedly connected, and the horizontal plate 2 provides an installation position for components such as a cylinder 202. On one side of the horizontal plate 2, a fixed block 201 is fixedly connected, and the fixed block 201 plays a role in connecting and fixing the cylinder 202. On one side of the fixed block 201, a cylinder 202 is fixedly connected. As a power-providing component, the cylinder 202 has stable and reliable performance. On one side of the cylinder 202, a telescopic rod 203 is fixedly connected, and the telescopic rod 203 can perform telescopic movement under the action of the cylinder 202. On one side of the horizontal plate 2, a rotating rod 204 is rotatably connected, and the rotating rod 204 can rotate according to the usage situation of the device, improving the flexibility of the device. Inside the bottom plate 1, a sliding groove 205 is provided, and the sliding groove 205 provides a track for the sliding of a slider 206. Inside the sliding groove 205, a slider 206 is slidably connected, and the slider 206 can slide smoothly within the sliding groove 205. Inside the bottom plate 1, a vertical plate 110 is slidably connected. As an important part of the device, the vertical plate 110 has stable connection. At the top of the vertical plate 110, a rotating wheel 118 is fixedly connected, and the rotating wheel 118 is a key component for the user to perform rehabilitation exercises.

[0036] Inside the vertical plate 110, a motor 3 is fixedly connected. The motor 3 provides a power source for the device and has stable performance. Inside the motor 3, a transmission gear 303 is rotatably connected, and the transmission gear 303 can transmit the power of the motor 3 to a rotating gear 302. On both sides of the transmission gear 303, rotating gears 302 are meshed and connected, and the rotating gears 302 can rotate under the drive of the transmission gear 303. At the bottom of the rotating gear 302, an adjusting plate 304 is rotatably connected, and the adjusting plate 304 can adjust the position of a clamping plate 305. Inside the adjusting plate 304, a clamping plate 305 is rotatably connected, and the clamping plate 305 can clamp the rotating wheel 118. At the bottom of the clamping plate 305, a connecting shaft 306 is rotatably connected, and the connecting shaft 306 plays a role in connecting and transmitting power. At the bottom of the connecting shaft 306, a resistance plate 307 is rotatably connected, and the resistance plate 307 can increase the resistance of the rotating wheel 118 to rotate, adjusting the intensity of the rehabilitation exercise. On one side of the vertical plate 110, a fixing plate 114 is fixedly connected, and the fixing plate 114 provides an installation position for components such as an operating table 111. At one end of the fixing plate 114, an operating table 111 is fixedly connected, and the operating table 111 is the place where the user operates. At one end of the operating table 111, a display screen 112 is fixedly connected, and the display screen 112 can display relevant information about the rehabilitation exercise. At one end of the operating table 111, an operation button 113 is fixedly connected, and the operation button 113 facilitates the user's operation.

[0037] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0038] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An orthopedic knee joint rehabilitation training auxiliary device, comprising a base plate (1), characterized in that: The top of the bottom plate (1) is fixedly connected to a connecting frame (103), the top of the connecting frame (103) is fixedly connected to a backrest (106), the top of the connecting frame (103) is fixedly connected to a seat plate (107), one side of the bottom plate (1) is fixedly connected to a fixed block (201), one side of the fixed block (201) is fixedly connected to a cylinder (202), the other side of the cylinder (202) is fixedly connected to a telescopic rod (203), one side of the fixed block (201) is rotatably connected to a rotating rod (204), a sliding groove (205) is provided inside the bottom plate (1), a sliding block (206) is slidably connected inside the sliding groove (205), a horizontal plate (2) is slidably connected inside the bottom plate (1), the top of the horizontal plate (2) is fixedly connected to a vertical plate (110), and a rotating wheel (118) is rotatably connected inside the vertical plate (110).

2. The orthopedic knee joint rehabilitation training auxiliary device according to claim 1, characterized in that: The bottom of the base plate (1) is fixedly connected to a support plate (101), and the bottom of the support plate (101) is fixedly connected to a base (102).

3. The orthopedic knee joint rehabilitation training auxiliary device according to claim 1, characterized in that: A handle (104) is fixedly connected to the top of the connecting frame (103), and a handrail (105) is fixedly connected to the top of the handle (104).

4. The orthopedic knee joint rehabilitation training auxiliary device according to claim 1, characterized in that: The top of the seat plate (107) is fixedly connected with a soft cushion (108), and the top of the soft cushion (108) is fixedly connected with a fitting cushion (109).

5. The orthopedic knee joint rehabilitation training auxiliary device according to claim 1, characterized in that: A fixed plate (114) is fixedly connected to one side of the vertical plate (110), an end of the fixed plate (114) is fixedly connected to an operating table (111), an end of the operating table (111) is fixedly connected to a display screen (112), and an end of the operating table (111) is fixedly connected to an operating button (113).

6. The orthopedic knee joint rehabilitation training auxiliary device according to claim 1, characterized in that: Connecting rods (115) are fixedly connected to both sides of the vertical plate (110), and the other end of the connecting rod (115) is slidably connected to a telescopic plate (116), and a handle (117) is fixedly connected between the telescopic plates (116).

7. The orthopedic knee joint rehabilitation training auxiliary device according to claim 6, characterized in that: A motor (3) is fixedly connected inside the vertical plate (110), and a hollow plate (301) is fixedly connected at the bottom of the motor (3). A transmission gear (303) is rotatably connected inside the motor (3), and rotating teeth (302) are meshedly connected on both sides of the transmission gear (303).

8. The orthopedic knee joint rehabilitation training auxiliary device according to claim 7, characterized in that: The bottom of the rotating tooth (302) is rotatably connected to an adjustment plate (304), the inside of the adjustment plate (304) is rotatably connected to a clamping plate (305), the bottom of the clamping plate (305) is rotatably connected to a connecting shaft (306), and the bottom of the connecting shaft (306) is rotatably connected to a resistance plate (307).

9. The orthopedic knee joint rehabilitation training auxiliary device according to claim 7, characterized in that: The bottom of the connecting shaft (306) is rotatably connected to a resistance plate (307), and the material of the resistance plate (307) is rubber.

10. The orthopedic knee joint rehabilitation training auxiliary device according to claim 7, characterized in that: The resistance plate (307) is provided with a friction adjustment mechanism, which comprises a plurality of friction strips arranged around the surface of the resistance plate, and the friction strips are made of a detachable material.