Knee joint postoperative rehabilitation training device
By designing a knee postoperative rehabilitation trainer including the bottom plate, leg support frame, rotating drive structure, and angle ruler, the problem of high cost and difficulty in controlling the existing training method has been solved, and the more efficient and safe knee knees are more efficient and safe. Joint rehabilitation training.
Patent Information
- Application Number
- CN202420566357.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-22
- Publication Date
- 2025-01-24
- Estimated Expiration
- 2034-03-22
AI Technical Summary
The existing post-knee rehabilitation training methods have high costs and difficult to control the training intensity, resulting in poor training results and high risk of secondary injury.
A kind of rehabilitation trainer after knee joint, including the bottom plate, the leg support frame, the rotating driver structure and angle ruler. Patients can adjust the level of leg bending during the training according to their own conditions. Targeted and safe training of joints.
Through this trainer, patients can intuitively adjust the training angle, improve training effects, reduce the risk of secondary injuries, and the cost is relatively low.
Smart Images
Figure CN222383640U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a training device, in particular to a postoperative rehabilitation training device for knee joints. Background Art
[0002] At present, there are mainly two clinical rehabilitation training methods after knee replacement surgery: 1. Rehabilitation training for patients by specialized rehabilitation therapists; 2. Using a knee flexion device specifically for the knee joint to assist in passive movement of the knee joint.
[0003] However, both methods have certain defects:
[0004] 1. The cost of specialized rehabilitation therapists is high, which is a heavy financial burden for patients who need long-term training. In addition, rehabilitation therapists cannot intuitively feel the condition of the patient's knee joint and often rely on experience during training;
[0005] 2. A dedicated knee flexion device assists in passive knee movement. During the training process, the strength and angle cannot be controlled manually, so it is easy for the strength and angle of the exercise to be inappropriate. For patients in the early postoperative period, it is easy for the strength and angle to be too large, which can easily cause secondary injuries to the patients. Utility Model Content
[0006] In view of the deficiencies in the prior art, the technical problem to be solved by the utility model is to provide a knee joint postoperative rehabilitation trainer, which allows patients to intuitively perform training according to their own conditions, thereby improving the training effect and reducing the chance of secondary injury to the patients.
[0007] In order to achieve the above object, the utility model is implemented through the following technical solutions: a postoperative rehabilitation training device for knee joint, comprising:
[0008] A bottom plate, wherein a group of guide grooves are arranged opposite to each other in the left and right long side directions of the bottom plate;
[0009] There are two groups of leg support frames, the two groups of leg support frames are arranged opposite to each other on the two long sides of the bottom plate, the leg support frames include a calf support and a thigh support connected to each other, and the angle between the calf support and the thigh support can be changed, the end of the calf support can be slidably connected to the guide groove on the same side, and the calf support and the thigh support are both provided with fixing belts;
[0010] A rotation drive structure, wherein the two thigh supports are connected to the base plate through the rotation drive structure on the same side, and the rotation drive structure can drive the thigh supports to rotate within the plane of the guide groove; and
[0011] An angle ruler is arranged on the thigh support, and a plug hole is provided on the bottom plate, and the bottom end of the angle ruler can be slidably inserted into the plug hole.
[0012] Furthermore, the rotational driving structure includes a rotational power source, a first rotating shaft, a first gear, a second rotating shaft and a second gear. An installation cavity penetrating the top surface of the bottom plate is provided in the bottom plate. The rotational power source is arranged in the installation cavity. The first rotating shaft is connected to the rotational power source. The rotational power source can drive the first rotating shaft to rotate. The first gear is sleeved and fixed on the first rotating shaft. The second rotating shaft is fixedly connected to the thigh support and is rotatably arranged in the installation cavity. The second gear is sleeved and fixed on the second rotating shaft, and the second gear is meshed with the first gear.
[0013] Furthermore, the rotating power source includes a spiral spring piece and a pull rope, a threading hole connected to the installation cavity is opened in the base plate, and the other end of the threading hole extends to the outside of the base plate, the spiral spring piece is sleeved on the first rotating shaft, and the outer end of the spiral spring piece is clamped and fixed on the side wall of the installation cavity, the inner end of the spiral spring piece is fixed on the first rotating shaft, the pull rope is wound on the first rotating shaft, and the end of the pull rope passes through the threading hole.
[0014] Furthermore, it also includes a wire reel, which is arranged on the bottom plate, and the end of the pull rope extending from the threading hole is wound around the wire reel, and the wire reel can be used for winding and releasing the wire.
[0015] Furthermore, the cable reel includes a cable reel and a handle, the cable reel is rotatably arranged on the base plate via a bracket, the end of the pull rope is wound around the cable reel, and the handle is eccentrically arranged on the handle.
[0016] Furthermore, it also includes a foot pedal, which is arranged at the end of the calf support away from the thigh support.
[0017] Beneficial effects of the utility model:
[0018] When using the above-mentioned knee joint postoperative rehabilitation trainer, the user sits on the base plate, places both legs on two leg support frames respectively, and fixes them with fixing belts, and then manually starts the rotation drive structure to drive the thigh support to rotate for knee flexion training. During use, refer to the angle on the angle ruler. In the early period after surgery, the angle between the thigh support and the base plate should be relatively small. As time goes by, the angle can be gradually increased.
[0019] By using this trainer, the angle of knee joint bending can be intuitively reflected through the angle ruler, making it convenient for patients to adjust the degree of leg bending during training according to their own leg conditions, thereby improving the training effect and reducing the chance of secondary injury to patients. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the specific implementation of the utility model, the following will briefly introduce the drawings required for use in the specific implementation. In all the drawings, each element or part is not necessarily drawn according to the actual scale.
[0021] Figure 1 A schematic diagram of a knee joint post-operative rehabilitation training device provided by an embodiment of the utility model;
[0022] Figure 2 for Figure 1 The local schematic diagram of point B in the middle;
[0023] Figure 3 for Figure 1 A schematic diagram of a rotation drive source in a knee joint post-operative rehabilitation training device is shown;
[0024] Figure 4 for Figure 1 A schematic diagram of a spiral shrapnel in a knee joint post-operative rehabilitation training device is shown;
[0025] Figure 5 for Figure 1 The local schematic diagram of the A in the middle;
[0026] Reference numerals:
[0027] 100, bottom plate; 110, guide groove; 200, leg support frame; 210, calf support; 220, thigh support; 300, rotation drive structure; 310, rotation power source; 311, spiral spring; 312, pull rope; 320, first gear; 330, second gear; 340, reel; 341, winding drum; 342, handle; 400, angle ruler; 500, reminder pad. DETAILED DESCRIPTION
[0028] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.
[0029] See also Figures 1 to 5 The utility model provides a postoperative rehabilitation training device for knee joint, comprising a base plate 100, a leg support frame 200, a rotation driving structure 300 and an angle ruler 400.
[0030] Specifically, a group of guide grooves 110 are arranged opposite to each other in the left and right long sides of the bottom plate 100. There are two groups of leg support frames 200, and the two groups of leg support frames 200 are arranged opposite to each other on the two long sides of the bottom plate 100. The leg support frame 200 includes a calf support 210 and a thigh support 220 connected to each other, and the angle between the calf support 210 and the thigh support 220 can be changed. The end of the calf support 210 shown can be slidably connected to the guide groove 110 on the same side, and fixing belts are arranged on the calf support 210 and the thigh support 220.
[0031] The two thigh brackets 220 are connected to the bottom plate 100 through the rotation drive structure 300 on the same side, and the rotation drive structure 300 can drive the thigh bracket 220 to rotate in the plane of the guide groove 110. The angle ruler 400 is arranged on the thigh bracket 220, and the bottom plate 100 is provided with a socket, and the bottom end of the angle ruler 400 can be slidably inserted into the socket.
[0032] When in use, the user sits on the base plate 100, places both legs on the two leg support frames 200 respectively, and fixes them with fixing belts, and then manually starts the rotation drive structure 300 to drive the thigh support 220 to rotate for knee flexion training. During use, refer to the angle on the angle ruler 400. In the early period after surgery, the angle between the thigh support 220 and the base plate 100 should be relatively small, even if the degree of calf bending is correspondingly small. As time goes by, the angle can be gradually increased.
[0033] It should be noted that, in specific implementation, a soft pad can be laid on the upper surface of the leg support frame to prevent the calf support and the thigh support from pinching the patient's legs during knee flexion, while improving comfort.
[0034] By using this trainer, the angle of knee joint bending can be intuitively reflected through the angle ruler 400, so that patients can adjust the degree of leg bending during training according to their own leg conditions, thereby improving the training effect and reducing the chance of secondary injury to patients.
[0035] In this embodiment, the rotary drive structure 300 includes a rotary power source 310, a first rotating shaft, a first gear 320, a second rotating shaft and a second gear 330. A mounting cavity is provided in the bottom plate 100 and runs through the top surface of the bottom plate 100. The rotary power source 310 is disposed in the mounting cavity. The first rotating shaft is connected to the rotary power source 310. The rotary power source 310 can drive the first rotating shaft to rotate. The first gear 320 is sleeved and fixed on the first rotating shaft. The second rotating shaft is fixedly connected to the thigh support 220 and is rotatably disposed in the mounting cavity. The second gear 330 is sleeved and fixed on the second rotating shaft, and the second gear 330 is meshed with the first gear 320.
[0036] When in use, it is only necessary to start the rotation power source 310, and the first gear 320 and the second gear 330 can drive the second shaft to rotate, thereby driving the thigh support 220 to rotate. In specific implementation, the transmission ratio of the first gear 320 and the second gear 330 can be made less than 1, which can play an acceleration role. Of course, in other embodiments, the thigh support 220 can also be rotated manually.
[0037] Specifically, the rotary power source 310 includes a spiral spring piece 311 and a pull rope 312. A threading hole connected to the installation cavity is provided in the bottom plate 100, and the other end of the threading hole extends to the outside of the bottom plate 100. The spiral spring piece 311 is sleeved on the first rotating shaft, and the outer end of the spiral spring piece 311 is fixed to the side wall of the installation cavity, and the inner end of the spiral spring piece 311 is fixed to the first rotating shaft. The pull rope 312 is wound on the first rotating shaft, and the end of the pull rope 312 passes through the threading hole.
[0038] In the initial state, the spiral spring piece 311 is in a relaxed natural state. At this time, the angle between the calf support 210 and the thigh support 220 is the largest, and the calf support 210 and the thigh support 220 tend to be in a straight line. When the knee needs to be bent, the pull rope 312 is pulled backward to drive the first shaft to rotate. The first rotation drives the first gear 320 to rotate, and the thigh support 220 can be driven to rotate upward through the second gear 330 and the second shaft, thereby driving the calf support 210 to move up and backward at the same time; when the pull rope 312 is released, under the pressure of the spiral spring piece 311 and the self-weight of the leg, the calf support 210 moves forward and rotates downward at the same time, and the thigh support 220 also rotates downward.
[0039] In this way, the patient can independently and conveniently operate the raising and lowering of the leg support frame 200 by pulling the rope 312 .
[0040] As a preferred embodiment, the training device further includes a wire reel 340, which is disposed on the bottom plate 100. The end of the pull rope 312 extending from the threading hole is wound around the wire reel 340, and the wire reel 340 can be used for winding and releasing the wire. The wire reel 340 further facilitates the operation of the pull rope 312.
[0041] Specifically, the cable reel 340 includes a cable reel 341 and a handle 342. The cable reel 341 is rotatably disposed on the bottom plate 100 via a bracket. The end of the pull rope 312 is wound around the cable reel 341, and the handle 342 is eccentrically disposed on the handle 342. When in use, the cable reel 341 can be rotated by the handle 342.
[0042] In addition, a footrest may be provided at the end of the calf support 210 away from the thigh support 220 to facilitate foot placement.
[0043] As another preferred embodiment, the trainer may further include a position prompt pad, wherein there are multiple prompt pads, and the multiple prompt pads are arranged at intervals along the extension direction of the guide groove. The prompt pads are flexible pads, such as foam pads, silicone pads, air cushions, etc. When the foot moves with the leg support frame, the foot can sequentially abut against each flexible pad.
[0044] In specific implementation, the angles between the calf support and the bottom plate can be set in sequence at intervals of 0°, 15°, 30°, and 60°. When the patient is bending, the prompt pad can contact the foot in sequence at the 15°, 30°, and 60° positions, and the trainer can intuitively estimate the angle of leg bending at this time, and when the trainer is training in the supine position, he can do it smoothly.
[0045] In the early postoperative period, training can be performed to bend between 0-15°. As time goes by, training can be performed to bend between 0-30°. Finally, training can be performed to bend between 0-60°.
[0046] Specific methods of using this postoperative knee rehabilitation training device:
[0047] When in use, the user sits on the base plate 100, places the two legs on the two leg support frames 200 and fixes them respectively, and places the feet on the foot pedal at the same time, and then rotates the winding disk 341 with reference to the angle on the angle ruler 400 to drive the leg support frame 200 to lift up, and stops after the knee joint is bent to the required angle, and then releases the handle 342. Under the pressure of the spiral spring piece 311 and the deadweight of the leg, the leg support frame 200 drops to the lowest point, and then repeats the above actions. It should be noted that during use, in the early stage after surgery, the angle between the thigh support 220 and the base plate 100 should be relatively small, and the angle can be gradually increased over time.
[0048] With this training device, the angle of knee joint bending can be intuitively reflected through the angle ruler 400, so that the patient can adjust the degree of leg bending during training according to his own leg condition, thereby improving the training effect and reducing the chance of secondary injury to the patient. At the same time, the training device uses the winding disk 341 to pull the pull rope 312 to provide the force for lifting the leg support frame, which can further facilitate the operation of the entire training device.
[0049] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.
Claims
1. A postoperative rehabilitation training device for knee joint, characterized in that: include: A bottom plate, wherein a group of guide grooves are arranged opposite to each other in the left and right long side directions of the bottom plate; There are two groups of leg support frames, the two groups of leg support frames are arranged opposite to each other on the two long sides of the bottom plate, the leg support frames include a calf support and a thigh support connected to each other, and the angle between the calf support and the thigh support can be changed, the end of the calf support can be slidably connected to the guide groove on the same side, and the calf support and the thigh support are both provided with fixing belts; A rotation drive structure, wherein the two thigh supports are connected to the bottom plate through the rotation drive structure on the same side, and the rotation drive structure can drive the thigh supports to rotate within the plane of the guide groove; and An angle ruler is arranged on the thigh support, and a plug hole is provided on the bottom plate, and the bottom end of the angle ruler can be slidably inserted into the plug hole.
2. The postoperative knee joint rehabilitation training device according to claim 1, characterized in that: The rotary drive structure includes a rotary power source, a first rotating shaft, a first gear, a second rotating shaft and a second gear. An installation cavity is provided in the base plate and passes through the top surface of the base plate. The rotary power source is arranged in the installation cavity. The first rotating shaft is connected to the rotary power source. The rotary power source can drive the first rotating shaft to rotate. The first gear is sleeved and fixed on the first rotating shaft. The second rotating shaft is fixedly connected to the thigh support and is rotatably arranged in the installation cavity. The second gear is sleeved and fixed on the second rotating shaft, and the second gear is meshed with the first gear.
3. The postoperative rehabilitation training device for knee joint according to claim 2, characterized in that: The rotating power source includes a spiral spring piece and a pull rope. A threading hole connected to the installation cavity is opened in the base plate, and the other end of the threading hole extends to the outside of the base plate. The spiral spring piece is sleeved on the first rotating shaft, and the outer end of the spiral spring piece is clamped and fixed on the side wall of the installation cavity, and the inner end of the spiral spring piece is fixed on the first rotating shaft. The pull rope is wound on the first rotating shaft, and the end of the pull rope passes through the threading hole.
4. The postoperative rehabilitation training device for knee joint according to claim 3, characterized in that: It also includes a wire reel, which is arranged on the bottom plate. The end of the pull rope extending from the threading hole is wound around the wire reel, and the wire reel can be used for winding and releasing the wire.
5. The postoperative rehabilitation training device for knee joint according to claim 4, characterized in that: The cable reel comprises a cable reel and a handle. The cable reel is rotatably arranged on the bottom plate through a bracket. The end of the pull rope is wound around the cable reel. The handle is eccentrically arranged on the handle.
6. The postoperative rehabilitation training device for knee joint according to claim 1, characterized in that: It also includes a foot pedal, which is arranged at the end of the calf support away from the thigh support.
7. The postoperative rehabilitation training device for knee joint according to claim 1, characterized in that: It also includes a position prompt pad, which has multiple prompt pads and is arranged at intervals along the extension direction of the guide groove. The prompt pad is a flexible pad. When the foot moves with the leg support frame, the foot can sequentially abut against each of the flexible pads.