Auxiliary rehabilitation training device used after lower limb bone joint operation

Abstract

The invention relates to the technical field of bone joint rehabilitation training, in particular to a lower limb bone joint postoperative auxiliary rehabilitation training device which comprises a wheelchair, training guide rails are arranged on the left side and the right side of the front portion of the wheelchair respectively, a training disc is placed at the bottom of the front side of the wheelchair, and ankle training plates are symmetrically arranged on the two sides of the top of the training disc; a foot placing box is arranged on the ankle training plate, a training control mechanism is arranged on the rear side of the top of the training guide rail, and the lower end of the training control mechanism is matched with the lower side of the training guide rail. The problems that in the prior art, the requirement that a patient actively participates in rehabilitation in daily life after an operation is difficult to meet, personalized design is lacked, the training process is difficult to flexibly adjust according to individual differences of the patient, secondary injury is easily caused to the patient, the intelligent degree is low, the training condition of the patient cannot be fed back in time, and positive training of the patient cannot be promoted are solved.

Description

Technical Field

[0001] The invention relates to the technical field of bone and joint rehabilitation training, and in particular to an auxiliary rehabilitation training device for lower limb bone and joint surgery. Background Art

[0002] With the aging of the population and the change of people's lifestyle, the incidence of lower limb bone and joint diseases (such as knee replacement, hip replacement, etc.) is on the rise. Postoperative rehabilitation training is crucial for patients to restore joint function and improve their ability to take care of themselves. Traditional rehabilitation training mainly relies on manual assistance from rehabilitation therapists and some simple equipment, such as crutches, walkers, CPM (continuous passive motion machine), etc. However, this method has many limitations. The resources of rehabilitation therapists are relatively scarce, and it is difficult to meet the growing needs of patients; the postoperative rehabilitation training device has a relatively single function, is large and inconvenient to move, and cannot be exercised at home, which is difficult to meet the needs of patients to actively participate in rehabilitation in daily life after surgery; the intensity and effect of manual assisted training are difficult to accurately control, and patients may lack timely guidance and diversified training methods during the rehabilitation process, resulting in slow rehabilitation progress and even poor recovery of joint function.

[0003] A Chinese patent with publication number CN115957480B discloses a post-operative rehabilitation exercise device for bone and joint surgery, including a seat, a tilted mounting plate hinged on the front side of the seat, a storage groove at the lower end of the mounting plate, a rebound mechanism in the storage groove, a C-shaped frame installed at the front side of the mounting plate, a pulling mechanism matching the C-shaped frame, a roller installed, a slide connected to the storage groove on the side of the mounting plate, a first gear extending out of the slide, pedals installed at both ends of the rotating shaft, a first transmission chain installed between the first gear and the second gear, a compensation mechanism for the first transmission chain installed on the side of the mounting plate, a transmission rod rotatably installed on the upper end of the mounting plate, a transmission mechanism provided between the transmission rod and the rotating shaft, and Z-shaped handles installed at both ends of the transmission rod. The present invention can rotate a suitable exercise method according to the actual physical condition of the patient, and the design is ingenious, reasonable and practical.

[0004] The functions of postoperative rehabilitation training devices for bone and joint surgery such as the above-mentioned ones are relatively simple. Most rehabilitation training equipment only focuses on a certain rehabilitation training method, such as simple leg strength training equipment or simple foot massage equipment. They cannot meet the various needs of patients for comprehensive postoperative rehabilitation. They lack personalized design and are difficult to flexibly adjust and customize according to the individual differences of patients (such as age, physical condition, type of surgery, etc.) and rehabilitation process. During use, the rehabilitation effect may be affected or even secondary injuries may be caused due to excessive or insufficient training intensity. The degree of intelligence is low. Most of these devices are not equipped with intelligent monitoring and feedback systems, and cannot understand the patient's training situation in real time and provide timely guidance and encouragement, and cannot encourage patients to actively participate in rehabilitation training. Summary of the invention

[0005] The purpose of the present invention is to provide an auxiliary rehabilitation training device for lower limb bone and joint surgery, which solves the problems of the prior art postoperative rehabilitation training devices, such as relatively simple functions, large size and inconvenience in movement, inability to exercise at home, difficulty in meeting the needs of patients to actively participate in rehabilitation in daily life after surgery, lack of personalized design, difficulty in flexibly adjusting the training process according to individual differences of patients, easy to cause secondary injuries to patients, and low intelligence level, inability to timely feedback the training status of patients, and inability to promote patients to actively train.

[0006] In order to achieve the above object, the technical solution adopted by the present invention to solve the technical problem is: An auxiliary rehabilitation training device for lower limb bone and joint surgery is designed. The rehabilitation training device is combined with a wheelchair. It can be flexibly adjusted according to the patient's own training intensity during the patient's postoperative sitting in the wheelchair to avoid secondary injuries to the patient during the training process. It adopts both automatic and passive training methods to meet the patient's comprehensive postoperative rehabilitation needs and improve the fun of the rehabilitation training process. It also promotes patients to actively participate in rehabilitation training through timely feedback information. It is very safe and convenient. The specific plan is as follows: An auxiliary rehabilitation training device for lower limb bone and joint surgery, comprising a wheelchair, wherein the left and right sides of the front of the wheelchair are respectively provided with training rails, a training plate is placed at the bottom of the front side of the wheelchair, and the top of the training plate is symmetrically provided with ankle training plates that can be turned upside down; The ankle training board is provided with a foot placement box, and the rear side of the top of the training rail is provided with a training control mechanism, the lower end of the training control mechanism is matched with the lower side of the training rail and is connected with the foot placement box.

[0007] Preferably, the training rail comprises an L-shaped frame structure consisting of a cross bar and an arc-shaped bar, wherein the cross bar is horizontally connected to the front side of the wheelchair, the upper end of the arc-shaped bar is connected to the free end of the cross bar, and the lower end of the arc-shaped bar abuts against the top of the training plate; A guide groove is arranged inside the arc rod along the arc direction thereof, a limit tooth groove is arranged outside the guide groove, a limit rack is arranged inside the limit tooth groove, and the limit rack matches the training control mechanism.

[0008] Preferably, the training control mechanism comprises a driving rod, a limiting rod and a rotating block, and the rotating block is rotatably connected to the connection between the cross bar and the wheelchair; The upper end of the driving rod is connected to the lower side of the rotating block, the upper side of the rotating block is connected to a handlebar, the lower end of the driving rod is provided with an inwardly extending guide slide rod, and the guide slide rod is slidably connected in the guide slide groove; The limiting rod is connected to the outside of the rotating block, and the limiting rod is arranged along the direction of the driving rod and is located at the rear side of the limiting rod.

[0009] Preferably, the upper end of the limit rod is provided with a handle extending outward, the lower end of the limit rod is sleeved with a stop rod extending inward, the stop rod is provided with a proximity sensor, and the proximity sensor is connected to a voice prompt device; A telescopic rod is slidably connected in the limit rod, a limit block extending inwardly and located below the blocking rod is provided at the lower end of the telescopic rod, the limit block is sleeved at the lower end of the limit rod, and a telescopic spring sleeved at the lower end of the telescopic rod is provided between the limit block and the limit rod; The limit block is located in the limit tooth groove, a limit tooth block is arranged at the bottom of the limit block, the limit tooth block is meshed with the limit rack, and a pull rod extending outward is arranged at the upper end of the telescopic rod, and the pull rod is located below the handle.

[0010] Preferably, a turning groove extending left and right is provided on the top of the training plate, the rear end of the ankle training plate is rotatably connected to the rear side of the turning groove, and abutment grooves are respectively provided on the left and right sides of the rear end of the training plate, and the lower side of the training guide rail abuts against the abutment grooves; A winding mechanism is arranged at the bottom of the front side of the flip groove, the winding mechanism is connected to the front side of the bottom of the ankle training board, and a return spring is arranged between the front side of the bottom of the ankle training board and the flip groove.

[0011] Preferably, a slot is provided at the rear side of the top of the ankle training board, a foot placement box is inserted into the slot, and a foot clamping mechanism wrapped around the outside of the foot placement box is provided at the rear side of the top of the ankle training board; The left and right sides of the ankle training board are respectively provided with toothed sliding grooves, and the first rack is slidably connected in the toothed sliding grooves; A positioning spring is connected to the rear end of the first rack, and the front end of the first rack is connected to the winding mechanism. A rotating rod is provided on the rear end side of the ankle training board, and the rotating rod is rotatably connected to both sides of the rear end of the flip groove.

[0012] Preferably, a winding groove is provided at the front side of the bottom of the turnover groove, the winding mechanism is arranged in the winding groove, and the winding mechanism comprises an intermittent motor, a rotating shaft, a winding roller, a first rope, a second rope and a winding spring; The rotating shaft is connected to the output end of the intermittent motor, the number of the winding rollers is three, the three winding rollers are equidistantly arranged on the rotating shaft, and the coil spring is wound inside the winding rollers; One end of the first rope is wound around the winding roller in the middle, and the other end of the first rope is fixedly connected to the front side of the bottom of the ankle training board. There are two second ropes, and one end of the two second ropes are respectively wound around the winding rollers on both sides of the rotating shaft, and the other ends of the two second ropes are fixedly connected to the front end of the first rack.

[0013] Preferably, a fixing belt is provided in the middle of the foot placement box, a plug board is provided at the rear end of the foot placement box, the plug board is plugged into the slot, a plurality of groups of massage rollers are provided inside the foot placement box, and gear grooves are provided at the bottom of the left and right sides of the foot placement box respectively; A plurality of gears are arranged in the gear groove, the plurality of gears are meshed with the first rack, and the plurality of gears are connected with a plurality of groups of massage rollers via a connecting shaft.

[0014] Preferably, the foot clamping mechanism comprises a U-shaped splint, a transmission tooth, a second rack and a third rack, and the number of the U-shaped splints is two, and they are correspondingly wrapped around the two sides of the rear end of the foot placement box; The transmission gear is rotatably connected to the rear side of the top of the ankle training board, the number of the second racks is two, the two second racks are respectively connected to the free ends of the lower side of the U-shaped splint, and the two second racks are meshed and connected to the front and rear sides of the transmission gear; The third rack is fixedly connected to the bottom of the foot placement box, and the third rack is meshed with the transmission teeth.

[0015] The beneficial effects of the present invention are: 1. The training guide rail of the present invention can provide a movement path for the foot placement box. Its shape and length design should be consistent with the physiological range of human knee joint movement, so that the legs can be lifted and lowered within a reasonable angle range. The guide rail is arc-shaped to better simulate the natural flexion and extension trajectory of the knee joint, and the inner measurement of the guide rail is marked with scales, so that patients can observe the lifting and extension angles more intuitively.

[0016] 2. The present invention is provided with an ankle training board that cooperates with a return spring to simulate an ankle pump action, which helps to promote periodic tension and relaxation of the calf muscles, thereby promoting blood return in the lower limb veins and preventing postoperative lower limb venous thrombosis. A foot placement box is provided on the ankle training board, and when the foot placement box moves along the training guide rail, it can be smoothly placed in the ankle training board to cooperate with it.

[0017] 3. The present invention provides a plurality of massage rollers matched with the ankle training board in the foot placement box, so that when the rope is tightened and relaxed, the first racks on both sides are pulled forward and backward, thereby driving the plurality of massage rollers in the foot placement box to roll and massage, which can promote blood circulation and relax the foot muscles.

[0018] 4. The present invention utilizes a training control mechanism to enable the patient to actively raise the legs to a certain angle along the training guide rail according to his or her own recovery status, which helps to gradually enhance the leg muscle strength, promote the recovery of knee joint function, improve the autonomy and flexibility of joint movement, and make rehabilitation training more in line with the individual differences and recovery process of patients. A proximity sensor connected to a voice prompt device is arranged on it, which can provide real-time feedback and emit encouraging voice to encourage patients to actively carry out rehabilitation training. At the same time, the clamping mechanism 9 is used to ensure that the patient's feet will not fall off the foot placement box during training, which is very safe and reliable.

[0019] 5. In the winding mechanism of the present invention, the intermittent motor rotates to drive the rotating shaft to rotate and tighten the rope, and then the reset spring loosens the rope, so that the ankle training plate can swing up and down along the rotating rod behind it, driving the synchronously connected foot placement box to move up and down, thereby realizing passive rehabilitation training; and when the motor is not started, the rope is in a relaxed state, which can be used for the foot to exercise independently, and when the foot is pressed downward, the ropes on both sides can be pulled by the winding spring (spring) to drive the massage roller to rotate for massage. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of an auxiliary rehabilitation training device for lower limb bone and joint surgery according to the present invention; Figure 2 This is a schematic diagram of a state in which a training plate and a wheelchair are separated in an auxiliary rehabilitation training device for lower limb bone and joint surgery according to the present invention; Figure 3This is a schematic diagram of a raised state of a foot placement box in an auxiliary rehabilitation training device for lower limb bone and joint surgery according to the present invention; Figure 4 It is a schematic diagram of the installation of an ankle training board in an auxiliary rehabilitation training device for lower limb bone and joint surgery according to the present invention; Figure 5 A diagram showing the connection relationship between a winding mechanism and an ankle training plate in an auxiliary rehabilitation training device for lower limb bone and joint surgery according to the present invention; Figure 6 A diagram showing the matching relationship between a foot placement box and an ankle training board in an auxiliary rehabilitation training device for lower limb bone and joint surgery according to the present invention; Figure 7 for Figure 6 A local enlarged schematic diagram of the middle A; Figure 8 It is a structural schematic diagram of an ankle training board in an auxiliary rehabilitation training device for lower limb bone and joint surgery according to the present invention; Fig. 9 This is a schematic diagram of the bottom structure of a foot placement box in an auxiliary rehabilitation training device for lower limb bone and joint surgery according to the present invention; Fig.10 for Fig. 9 A partial enlarged schematic diagram of point B in the middle; Fig.11 A diagram showing the connection relationship between a training guide rail and a training control mechanism in an auxiliary rehabilitation training device for lower limb bone and joint surgery according to the present invention; Fig.12 for Fig.11 A partial enlarged schematic diagram of point C in the middle; Fig.13 It is a structural schematic diagram of a training control mechanism in an auxiliary rehabilitation training device for lower limb bone and joint surgery according to the present invention; Fig.14 for Fig.13 A partial enlarged schematic diagram of point D in the middle; Fig.15 The present invention is a schematic diagram of the internal structure of a limit rod in an auxiliary rehabilitation training device for lower limb bone and joint surgery.

[0021] In the figure: 1-wheelchair; 2-training guide rail; 21-cross bar; 22-arc bar; 23-limiting tooth groove; 24-guide slide groove; 25-limiting rack; 3-training control mechanism; 31-driving rod; 311-handlebar; 312-guide slide rod; 32-limiting rod; 321-handle; 33-rotating block; 34-telescopic rod; 341-pull rod; 342-telescopic spring; 343-limiting block; 344-limiting tooth block; 35-blocking rod; 351-proximity sensor; 4-training plate; 41-turning groove; 42-abutting groove; 43-winding groove; 5-foot Placement box; 51-fixing belt; 52-gear groove; 53-massage roller; 531-gear; 532-connecting shaft; 54-plug plate; 6-ankle training plate; 61-slot; 62-tooth slide; 63-first rack; 64-rotating rod; 65-positioning spring; 7-winding mechanism; 71-intermittent motor; 72-rotating shaft; 73-winding roller; 74-first rope; 75-second rope; 76-winding spring; 8-reset spring; 9-foot clamping mechanism; 91-U-shaped splint; 92-transmission tooth; 93-second rack; 94-third rack. DETAILED DESCRIPTION

[0022] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

[0023] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present invention. However, it is apparent to one of ordinary skill in the art that these specific details are not necessarily employed to practice the present invention. In other embodiments, in order to avoid obscuring the present invention, well-known structures, circuits, materials, or methods are not specifically described.

[0024] Throughout the specification, references to "one embodiment," "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "one embodiment," "an embodiment," "an example," or "an example" appearing in various places throughout the specification do not necessarily all refer to the same embodiment or example. In addition, particular features, structures, or characteristics may be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. In addition, it will be appreciated by those of ordinary skill in the art that the figures provided herein are for illustrative purposes and that the figures are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] In the description of the present invention, the directions or positional relationships indicated by terms such as “front”, “rear”, “left”, “right”, “up”, “down”, “vertical”, “horizontal”, “high”, “low”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the scope of protection of the present invention.

[0026] like Figure 1-15 As shown, the present invention provides an auxiliary rehabilitation training device for lower limb bone and joint surgery, including a wheelchair 1, wherein training guide rails 2 are respectively arranged on the left and right sides of the front of the wheelchair 1, and a training plate 4 is placed on the bottom of the front side of the wheelchair 1. The wheelchair 1 and the training plate 4 are of split design. When a patient needs to perform rehabilitation training, the patient can be pushed to the rear side of the training plate 4 through the wheelchair 1, so that the front side of the wheelchair 1 is connected to the rear side of the training plate 4, so as to facilitate the patient to perform rehabilitation training. The top of the training plate 4 is symmetrically provided with ankle training plates 6 that can be turned up and down, and the ankle training plates 6 are provided with A foot placement box 5 is provided. During the rehabilitation training, the patient can place both feet in the foot placement box 5 and realize passive or active training through the drive of the ankle training board 6 or the patient's own activities. A training control mechanism 3 is provided on the top rear side of the training guide rail 2. The lower end of the training control mechanism 3 cooperates with the lower side of the training guide rail 2 and is connected to the foot placement box 5. The training control mechanism 3 can be used to adjust the angle of the foot placement box 5 for training, thereby realizing the adjustment of the training intensity. At the same time, the training control mechanism 3 can be used to drive the patient's lower limbs to perform passive rehabilitation training.

[0027] In the above scheme, the training guide rail 2 includes an L-shaped frame structure composed of a cross bar 21 and an arc-shaped bar 22, the cross bar 21 is horizontally connected to the front side of the wheelchair 1, the upper end of the arc-shaped bar 22 is connected to the free end of the cross bar 21, and the lower end of the arc-shaped bar 22 is against the top of the training disk 4; a guide groove 24 is arranged in the arc-shaped bar 22 along its curvature direction, a limiting tooth groove 23 is arranged on the outer side of the guide groove 24, a limiting rack 25 is arranged in the limiting tooth groove 23, and the limiting rack 25 matches the training control mechanism 3.

[0028] As an optimization technical solution of the present invention, a cross bar 21 is installed at the upper end of the front side of the wheelchair 1, and a curved rod 22 is connected to the free end of the cross bar 21 and bent backward, so that the training control mechanism 3 can drive the foot placement box 5 to provide a movement path for the patient during the lower limb bone and joint rehabilitation training through the curved rod 22. The shape and length design of the curved rod 22 should be consistent with the physiological range of human knee joint movement, so that the legs can be lifted and lowered within a reasonable angle range. The track is curved to better simulate the natural flexion and extension trajectory of the knee joint. The inner side of the track is marked with scales, so that the patient can observe the lifting and extension angles more intuitively.

[0029] In the above scheme, the training control mechanism 3 includes a driving rod 31, a limiting rod 32 and a rotating block 33, and the rotating block 33 is rotatably connected to the connection between the cross bar 21 and the wheelchair 1; the upper end of the driving rod 31 is connected to the lower side of the rotating block 33, and the upper side of the rotating block 33 is connected to the handlebar rod 311, and the lower end of the driving rod 31 is provided with a guide slide rod 312 extending inwardly, and the guide slide rod 312 is slidably connected in the guide slide groove 24; the limiting rod 32 is connected to the outside of the rotating block 33, and the limiting rod 32 is arranged along the direction of the driving rod 31 and is located at the rear side of the limiting rod 32.

[0030] As an optimized technical solution of the present invention, in the process of passively implementing the patient's lower limb bone and joint rehabilitation training, the patient can manually push and pull the handle bar 311 back and forth, thereby driving the rotating block 33 to rotate, and when the rotating block 33 rotates, it drives the driving rod 31 to rotate counterclockwise upward. Since the foot placement box 5 is connected to the free end of the guide slide bar 312 at the lower end of the driving rod 31, the matching relationship between the guide slide bar 312 and the guide slide groove 24 can be utilized to drive the foot placement box 5 to swing up and down along the motion trajectory of the arc rod 22 for rehabilitation training, thereby realizing comprehensive rehabilitation training for the patient.

[0031] In the above scheme, a handle 321 extending outward is provided at the upper end of the limit rod 32, and a baffle rod 35 extending inward is sleeved at the lower end of the limit rod 32. A proximity sensor 351 is provided on the baffle rod 35, and the proximity sensor 351 is connected to a voice prompt device; a telescopic rod 34 is slidably connected inside the limit rod 32, and a limit block 343 extending inward and located below the baffle rod 35 is provided at the lower end of the telescopic rod 34. The limit block 343 is sleeved on the lower end of the limit rod 32, and a telescopic spring 342 sleeved on the lower end of the telescopic rod 34 is provided between the limit block 343 and the limit rod 32; the limit block 343 is located in the limit tooth groove 23, and a limit tooth block 344 is provided at the bottom of the limit block 343, and the limit tooth block 344 is meshed with the limit rack 25. A pull rod 341 extending outward is provided at the upper end of the telescopic rod 34, and the pull rod 341 is located below the handle 321.

[0032] As an optimized technical solution of the present invention, when the patient manually pushes and pulls the handlebar 311 for rehabilitation training, in order to adjust the angle suitable for the patient's training, the patient can pull the pull rod 341 by hand, thereby driving the telescopic rod 34 to slide upward on the limit rod 32, thereby causing the limit tooth block 344 to disengage from the limit rack 25, and then the driving rod can be rotated to a suitable angle, and the pull rod 341 is released. Under the action of the restoring elastic force of the telescopic spring 342, the limit tooth block 344 is again engaged with the limit rack 25 at this position, and then the rotation of the driving rod 31 can be blocked by the blocking rod 35, so that the rotation range of the driving rod 31 is limited, and finally the rising angle of the foot placement box 5 is adjusted. At the same time, a proximity sensor 351 connected to the voice prompt device is arranged on the blocking rod 35. It uses the principles of electromagnetic induction or infrared induction. When the driving rod and other components are close to a certain distance, it can detect the approach of an object and then trigger the voice prompt device to emit a sound. This sound can be a simple reminder tone or an encouraging voice, such as "Come on, you're doing a good job."

[0033] In the above scheme, a flip groove 41 extending left and right is opened on the top of the training disk 4, the rear end of the ankle training plate 6 is rotatably connected to the rear side of the flip groove 41, and abutment grooves 42 are respectively provided on the left and right sides of the rear end of the training disk 4, and the lower side of the training guide rail 2 abuts against the abutment groove 42; a winding mechanism 7 is provided at the bottom of the front side of the flip groove 41, the winding mechanism 7 is connected to the front side of the bottom of the ankle training plate 6, and a return spring 8 is provided between the front side of the bottom of the ankle training plate 6 and the flip groove 41.

[0034] As an optimization technical solution of the present invention, the rear side of the ankle training board 6 is rotatably connected to the rear side of the flip groove 41, and the reset spring 8 is connected to the front side of the ankle training board 6 and the flip groove 41, so that autonomous training can be achieved by stepping on the ankle training board 6; a winding mechanism 7 is arranged in the front bottom of the flip groove 41 below the ankle training board 6, and the winding mechanism 7 can drive the ankle training board 6 to swing up and down in the flip groove 41, so as to achieve passive training of the patient through the ankle training board 6. The abutment groove 42 is to achieve the precise docking of the training guide rail 2 and the training disk 4 on the wheelchair 1, and plays the role of limiting and plugging to ensure the perfect docking of the foot placement box 5 and the ankle training board 6.

[0035] In the above scheme, a slot 61 is provided on the top rear side of the ankle training board 6, and a foot placement box 5 is inserted into the slot 61; a foot clamping mechanism 9 wrapped around the outside of the foot placement box 5 is provided on the top rear side of the ankle training board 6; toothed grooves 62 are provided on the left and right sides of the ankle training board 6, and a first rack 63 is slidably connected in the toothed grooves 62; a positioning spring 65 is connected to the rear end of the first rack 63, and the front end of the first rack 63 is connected to the winding mechanism 7; a rotating rod 64 is provided on the rear end side of the ankle training board 6, and the rotating rod 64 is rotatably connected to the two sides of the rear end of the flip groove 41.

[0036] As an optimized technical solution of the present invention, the slot 61 can utilize its plug-in relationship with the plug plate 54 to achieve the docking of the ankle training board 6 and the foot placement box 5 during the rising and falling process of the foot placement box 5, and drive the foot clamping mechanism 9 to achieve clamping or loosening during the docking process, and under the drive of the winding mechanism 7, the first racks 63 on both sides of the top of the ankle training board can move back and forth in the tooth slide groove 62, thereby driving the massage roller 53 in the foot placement box 5 to massage the soles of the patient's feet to promote blood circulation in the soles of the patient's feet.

[0037] In the above scheme, a winding groove 43 is provided on the front side of the bottom of the flip groove 41, and the winding mechanism 7 is arranged in the winding groove 43. The winding mechanism 7 includes an intermittent motor 71, a rotating shaft 72, a winding roller 73, a first rope 74, a second rope 75 and a coiling spring 76; the rotating shaft 72 is connected to the output end of the intermittent motor 71, the number of the winding rollers 73 is three, and the three winding rollers 73 are equidistantly arranged on the rotating shaft 72, and the coiling spring 76 is wound in the winding rollers 73; one end of the first rope 74 is wound on the middle winding roller 73, and the other end of the first rope 74 is fixedly connected to the front side of the bottom of the ankle training board 6, the number of the second ropes 75 is two, and one end of the two second ropes 75 are respectively wound on the winding rollers 73 on both sides of the rotating shaft 72, and the other end of the two second ropes 75 is fixedly connected to the front end of the first rack 63.

[0038] As an optimization technical solution of the present invention, during the passive training process, the three winding rollers 73 on the rotating shaft 72 can be driven by the intermittent motor 71 to rotate synchronously, thereby realizing the winding work of the first rope 74 and the second rope 75. The front side of the ankle training plate 6 is flipped downward under the pulling of the first rope 74, and the first rack 63 is pulled forward by the second rope 75, and then the massage roller 53 is driven by the first rack 63 to massage the sole of the patient's foot. When the front side of the ankle training plate 6 rotates to the bottom of the flipping groove 41, the intermittent motor 71 loses power, and then the ankle training plate 6 is flipped upward under the restoring elastic force of the reset spring 8, and then the first rope 74 and the second rope 75 wound on the winding roller 73 are released, and the first rack 63 moves backward under the elastic force of the positioning spring 65, and then the massage roller 53 is driven to rotate in the opposite direction to realize the massage function for the sole of the patient's foot.

[0039] During the active training process, the patient can step down on the ankle training board 6 with both feet, so that the reset spring 8 is compressed, and the first rope 74 and the second rope 75 are wound onto the winding roller 73 under the elastic force of the winding spring 76 in the winding roller 73. Similarly, the first gear 63 is driven forward by the second rope 75, thereby driving the massage roller 63 to realize the massage function. After the patient's foot releases the ankle training board 6, under the elastic force of the reset spring 8, the winding roller 73 is pulled by the first rope 74 to release the first rope 74 and the second rope 75, and then the first rack is pulled backward by the positioning spring 65 to drive the massage roller 53 to realize the massage function.

[0040] Only by repeating this process can the patient's lower limbs be passively or actively rehabilitated, which can improve the comprehensiveness and systematicness of the rehabilitation training, make the overall rehabilitation process of the lower limbs more coordinated, help patients recover normal lower limb function and mobility faster, help improve ankle joint range of motion and muscle strength, and meet the patient's needs for autonomous foot force training. It can adapt to changes in different rehabilitation stages and individual patient conditions, and provide a variety of training methods for ankle rehabilitation.

[0041] In the above scheme, a fixing belt 51 is provided in the middle of the foot placement box 5, a plug plate 54 is provided at the rear end of the foot placement box 5, the plug plate 54 is inserted into the slot 61, a plurality of groups of massage rollers 53 are provided inside the foot placement box 5, and gear grooves 52 are provided at the bottom of the left and right sides of the foot placement box 5 respectively; a plurality of gears 531 are provided in the gear grooves 52, the plurality of gears 531 are meshed with the first rack 63, and the plurality of gears 531 are connected to the plurality of groups of massage rollers 53 through the connecting shaft 532.

[0042] As an optimization technical solution of the present invention, during the patient's rehabilitation training, the gear 531 is driven to rotate forward and reversely by the forward and backward movement of the first rack 63, and then the massage roller 53 in the foot placement box 5 is driven to rotate forward and reversely through the connecting shaft 532, so as to achieve massage of the patient's soles, promote blood circulation in the soles, relieve foot fatigue and muscle tension, and further improve the comfort and effectiveness of rehabilitation training.

[0043] In the above scheme, the foot clamping mechanism 9 includes a U-shaped splint 91, a transmission tooth 92, a second rack 93 and a third rack 94. There are two U-shaped splints 91, which are correspondingly wrapped around the two sides of the rear end of the foot placement box 5; the transmission tooth 92 is rotatably connected to the rear side of the top of the ankle training board 6, and there are two second racks 93. The two second racks 93 are respectively connected to the free ends of the lower side of the U-shaped splint 91, and the two second racks 93 are meshed and connected to the front and rear sides of the transmission tooth 92; the third rack 94 is fixedly connected to the bottom of the foot placement box 5, and the third rack 94 is meshed with the transmission tooth 92.

[0044] As an optimized technical solution of the present invention, the lower end of the U-shaped splint 91 is slidably connected to the two sides of the rear end of the ankle training board 6, and is used to wrap around the two sides of the rear end of the foot placement box 5 to clamp the patient's feet. When the patient uses both hands to drive the foot placement box 5 along the training guide rail 2 for rehabilitation training through the training control mechanism 3, when the foot placement box 5 falls to the top of the ankle training board 6, so that the foot placement box 5 is to be installed on the top of the ankle training board 6, the third rack 94 at the bottom of the foot placement box 5 will mesh with the transmission gear 92, and then drive the transmission gear 92 forward. After that, the second racks 93 on both sides mesh with each other and move in opposite directions, thereby driving the U-shaped splints 91 on both sides of the foot placement box 5 to move away from each other, so that the U-shaped splints 91 lose their clamping effect on the patient's feet, so that the patient's feet can be taken out after the training is completed. When the foot placement box 5 is in the process of separating from the ankle training board 6, the third rack 94 will drive the transmission gear 92 to rotate in the opposite direction, thereby driving the second rack 93 to move in opposite directions, so that the U-shaped splints 91 on both sides of the foot placement box 5 are close to each other to achieve the clamping effect on the patient's feet, so as to prevent the patient's feet from separating during the training process.

[0045] Specific implementation cases: When using the rehabilitation training device, the patient can sit on the wheelchair 1, place both feet in the foot placement box 5, and fix them with the fixing belt 51, and then push the wheelchair 1, so that the lower side of the training guide rail 2 is against the abutment groove 42, so that the foot placement box 5 is combined with the ankle training board 6.

[0046] Then, by holding the training control mechanism 3, the patient's hand is used to pull the pull rod 341, thereby driving the telescopic rod 34 to slide upward on the limit rod 32, so that the limit tooth block 344 is disengaged from the limit rack 25, and then the driving rod can be rotated to a suitable angle, and the pull rod 341 is released. Under the action of the restoring elastic force of the telescopic spring 342, the limit tooth block 344 is meshed with the limit rack 25 at this position again, and then the rotation of the driving rod 31 can be blocked by the blocking rod 35, so that the rotation range of the driving rod 31 is limited, and finally the rising angle of the foot placement box 5 can be adjusted.

[0047] Then, the patient can grasp the handle bar 311 with both hands and push and pull it back and forth repeatedly, and then the guide slide bar 312 at the lower end of the driving rod 31 can drive the foot placement box 5 to move counterclockwise upward or clockwise downward along the training guide rail 2 to drive the patient's lower limb bone joints to perform passive rehabilitation training; or the patient can use his own lower limb force to drive the foot placement box 5 to move along the training guide rail 2 to achieve autonomous rehabilitation training. During the rehabilitation training process, when the foot placement box 5 is rising and separating from the ankle training board 6, and when the foot placement box 5 is falling and docking with the ankle training board 6, the first gear 63 and the gear 531 are meshed, and the connecting shaft 532 drives the multiple massage rollers 53 in the foot placement box 5 to rotate to achieve massage of the patient's sole, thereby promoting the patient's blood circulation and accelerating the rehabilitation efficiency.

[0048] At the same time, when the patient pushes and pulls the driving rod 31 with both hands or uses his own force to perform lower limb bone and joint training, when the foot placement box 5 is separated from the ankle training board 6, the third rack 94 can drive the transmission tooth 92 to rotate, and then drive the second rack 93 to move toward each other, so that the U-shaped splint 91 moves inward to achieve the clamping effect on the patient's foot and prevent the patient's foot from detaching during training; when the foot placement box 5 is docked with the ankle training board 6, the third rack 94 can drive the transmission tooth 92 to rotate in the opposite direction, and then drive the second rack 93 to move away from each other, so that the U-shaped splint 91 moves outward and loses the clamping effect on the patient's foot, so that the patient's foot can take out the foot placement box, which is very safe and intelligent.

[0049] Finally, the device also has an autonomous or passive ankle training function. When the foot placement box 5 is placed on the ankle training board 6 and the two are in a docking state, the intermittent motor 71 can drive the three winding rollers 73 on the rotating shaft 72 to rotate synchronously, thereby realizing the winding work of the first rope 74 and the second rope 75. Under the pulling of the first rope 74, the front side of the ankle training board 6 is turned downward, and at the same time, the first rack 63 is pulled forward by the second rope 75, and then the massage roller 53 is driven by the first rack 63 to The soles of the patient's feet are massaged. When the front side of the ankle training plate 6 rotates to the bottom of the flip groove 41, the intermittent motor 71 loses power, and the ankle training plate 6 is flipped upward under the restoring elastic force of the reset spring 8, so that the first rope 74 and the second rope 75 wound on the winding roller 73 are released, and the first rack 63 moves backward under the elastic force of the positioning spring 65, and then drives the massage roller 53 to rotate in the opposite direction to realize the massage function for the soles of the patient's feet, thereby repeatedly realizing passive training of the patient's ankles.

[0050] During the active ankle training process, the patient can step down on the ankle training board 6 with both feet, so that the reset spring 8 is compressed, and the first rope 74 and the second rope 75 are wound onto the winding roller 73 under the elastic force of the winding spring 76 in the winding roller 73. Similarly, the first gear 63 is driven forward by the second rope 75, thereby driving the massage roller 63 to realize the massage function. After the patient's foot releases the ankle training board 6, under the elastic force of the reset spring 8, the winding roller 73 is pulled by the first rope 74 to release the first rope 74 and the second rope 75, and then the first rack is pulled backward by the positioning spring 65 to drive the massage roller 53 to realize the massage function. This process is repeated to promote the patient's blood circulation, enhance the rehabilitation effect, and achieve the purpose of autonomous training.

[0051] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An auxiliary rehabilitation training device for lower limb bone and joint surgery, comprising a wheelchair (1), characterized in that: The left and right sides of the front of the wheelchair (1) are respectively provided with training rails (2); a training plate (4) is placed at the bottom of the front side of the wheelchair (1); and ankle training plates (6) that can be turned upside down are symmetrically arranged on both sides of the top of the training plate (4); A foot placement box (5) is provided on the ankle training board (6), and a training control mechanism (3) is provided on the rear side of the top of the training guide rail (2); the lower end of the training control mechanism (3) cooperates with the lower side of the training guide rail (2) and is connected to the foot placement box (5).

2. The auxiliary rehabilitation training device for lower limb bone and joint surgery according to claim 1, characterized in that: The training guide rail (2) comprises an L-shaped frame structure consisting of a cross bar (21) and an arc-shaped bar (22), wherein the cross bar (21) is horizontally connected to the front side of the wheelchair (1), the upper end of the arc-shaped bar (22) is connected to the free end of the cross bar (21), and the lower end of the arc-shaped bar (22) abuts against the top of the training plate (4); A guide groove (24) is arranged inside the arc-shaped rod (22) along its arc direction, a limit tooth groove (23) is arranged outside the guide groove (24), a limit rack (25) is arranged inside the limit tooth groove (23), and the limit rack (25) matches the training control mechanism (3).

3. The auxiliary rehabilitation training device for lower limb bone and joint surgery according to claim 2, characterized in that: The training control mechanism (3) comprises a driving rod (31), a limiting rod (32) and a rotating block (33); the rotating block (33) is rotatably connected to the connection between the cross bar (21) and the wheelchair (1); The upper end of the driving rod (31) is connected to the lower side of the rotating block (33), the upper side of the rotating block (33) is connected to a handlebar (311), and the lower end of the driving rod (31) is provided with a guide slide rod (312) extending inwardly, and the guide slide rod (312) is slidably connected in the guide slide groove (24); The limiting rod (32) is connected to the outside of the rotating block (33); the limiting rod (32) is arranged along the direction of the driving rod (31) and is located at the rear side of the limiting rod (32).

4. The auxiliary rehabilitation training device for lower limb bone and joint surgery according to claim 3, characterized in that: The upper end of the limit rod (32) is provided with a handle (321) extending outwards, the lower end of the limit rod (32) is sleeved with a stop rod (35) extending inwards, the stop rod (35) is provided with a proximity sensor (351), and the proximity sensor (351) is connected to a voice prompt device; A telescopic rod (34) is slidably connected inside the limit rod (32); a limit block (343) extending inwardly and located below the blocking rod (35) is provided at the lower end of the telescopic rod (34); the limit block (343) is sleeved on the lower end of the limit rod (32); a telescopic spring (342) sleeved on the lower end of the telescopic rod (34) is provided between the limit block (343) and the limit rod (32); The limit block (343) is located in the limit tooth groove (23), a limit tooth block (344) is arranged at the bottom of the limit block (343), the limit tooth block (344) is meshed with the limit rack (25), and a pull rod (341) extending outward is arranged at the upper end of the telescopic rod (34), and the pull rod (341) is located below the handle (321).

5. The auxiliary rehabilitation training device for lower limb bone and joint surgery according to claim 1, characterized in that: The top of the training plate (4) is provided with a turning groove (41) extending left and right, the rear end of the ankle training plate (6) is rotatably connected to the rear side of the turning groove (41), and the left and right sides of the rear end of the training plate (4) are respectively provided with abutment grooves (42), and the lower side of the training guide rail (2) abuts against the abutment grooves (42); A winding mechanism (7) is provided at the bottom of the front side of the turnover groove (41); the winding mechanism (7) is connected to the front side of the bottom of the ankle training plate (6); and a return spring (8) is provided between the front side of the bottom of the ankle training plate (6) and the turnover groove (41).

6. The auxiliary rehabilitation training device for lower limb bone and joint surgery according to claim 5, characterized in that: A slot (61) is provided at the rear side of the top of the ankle training board (6), a foot placement box (5) is inserted into the slot (61), and a foot clamping mechanism (9) wrapped around the outside of the foot placement box (5) is provided at the rear side of the top of the ankle training board (6); The ankle training board (6) is provided with toothed sliding grooves (62) on the left and right sides respectively, and a first rack (63) is slidably connected in the toothed sliding grooves (62); A positioning spring (65) is connected to the rear end of the first rack (63), and a front end of the first rack (63) is connected to the winding mechanism (7). A rotating rod (64) is provided on the rear end side of the ankle training plate (6), and the rotating rod (64) is rotatably connected to both sides of the rear end of the flip groove (41).

7. The auxiliary rehabilitation training device for lower limb bone and joint surgery according to claim 6, characterized in that: A winding groove (43) is arranged at the front side of the bottom of the turning groove (41), and the winding mechanism (7) is arranged in the winding groove (43). The winding mechanism (7) comprises an intermittent motor (71), a rotating shaft (72), a winding roller (73), a first rope (74), a second rope (75) and a winding spring (76); The rotating shaft (72) is connected to the output end of the intermittent motor (71), the number of the winding rollers (73) is three, the three winding rollers (73) are arranged on the rotating shaft (72) at equal intervals, and the coil spring (76) is wound inside the winding rollers (73); One end of the first rope (74) is wound around the winding roller (73) in the middle, and the other end of the first rope (74) is fixedly connected to the front side of the bottom of the ankle training board (6). There are two second ropes (75), one end of the two second ropes (75) is respectively wound around the winding rollers (73) on both sides of the rotating shaft (72), and the other end of the two second ropes (75) is fixedly connected to the front end of the first rack (63).

8. The auxiliary rehabilitation training device for lower limb bone and joint surgery according to claim 6, characterized in that: A fixing belt (51) is arranged in the middle of the foot placement box (5), a plug plate (54) is arranged at the rear end of the foot placement box (5), the plug plate (54) is plugged into the slot (61), a plurality of groups of massage rollers (53) are arranged inside the foot placement box (5), and gear grooves (52) are respectively arranged at the bottom of the left and right sides of the foot placement box (5); A plurality of gears (531) are arranged in the gear groove (52); the plurality of gears (531) mesh with the first rack (63); and the plurality of gears (531) are connected to a plurality of groups of massage rollers (53) via a connecting shaft (532).

9. The auxiliary rehabilitation training device for lower limb bone and joint surgery according to claim 6, characterized in that: The foot clamping mechanism (9) comprises a U-shaped clamping plate (91), a transmission tooth (92), a second rack (93) and a third rack (94); the number of the U-shaped clamping plates (91) is two, and they are correspondingly wrapped around two sides of the rear end of the foot placement box (5); The transmission tooth (92) is rotatably connected to the rear side of the top of the ankle training board (6); the number of the second racks (93) is two, the two second racks (93) are respectively connected to the free ends of the lower side of the U-shaped splint (91) in an opposite manner, and the two second racks (93) are meshedly connected to the front and rear sides of the transmission tooth (92); The third rack (94) is fixedly connected to the bottom of the foot placement box (5), and the third rack (94) is meshed with the transmission gear (92).

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