A device for rehabilitation training of knee sprain

Abstract

This invention relates to a device for rehabilitation training of knee sprains, comprising a support unit, a slide rail unit, a placement unit, a knee flexion exercise unit, and a hip elevation exercise unit. Its advantages are: by setting up the knee flexion exercise unit, the patient's knee joint is trained to flex; by setting up the hip elevation exercise unit, the patient's knee joint is trained to elevate the hip; by setting up the placement unit, the patient can be positioned in both a sitting and supine position; by setting up the slide rail unit, the placement unit can slide on the slide rail unit, facilitating the patient to switch between knee flexion and hip elevation rehabilitation training without causing secondary injury to the knee joint during the switching process.

Description

Technical Field

[0001] This invention relates to the field of rehabilitation training equipment technology, and in particular to a device for rehabilitation training of knee sprains. Background Technology

[0002] The knee joint, composed of the lower end of the femur, the upper end of the tibia, and the patella, is the largest and most complex joint in the human body, belonging to the trochlear joint category. The ligaments of the knee joint include the patellar ligament, fibular collateral ligament, tibial collateral ligament, oblique ligaments, and cruciate ligaments.

[0003] Knee sprains can be categorized into a range of injuries, including meniscus tears, ligament strains or ruptures, patellar dislocations, tendinitis, and fractures. These injuries share the common characteristics of causing joint pain and limited mobility. Prolonged immobilization can lead to complications such as muscle atrophy, joint adhesions, and osteoporosis, severely impacting an individual's physical and mental health and quality of life. Therefore, postoperative rehabilitation for knee injuries is crucial. Early postoperative rehabilitation training can promote blood circulation, strengthen meniscus nutrition to facilitate healing, and promote muscle strength recovery, preventing complications such as muscle atrophy and joint stiffness.

[0004] The main focus of postoperative rehabilitation training is to increase muscle strength, muscle tone, muscle endurance, and joint range of motion. Before training, shortwave diathermy and magnetic therapy can be given to improve local circulation and reduce swelling and pain. If there is swelling and numbness in the calf and foot, medium-frequency electrotherapy can be given. Apply ice to the area after each training session to relieve pain.

[0005] Common rehabilitation exercises include hip elevation and knee flexion exercises. In the initial stages of training, patients cannot spontaneously control their knee joints for orderly rehabilitation exercises, so these exercises require the assistance of training equipment. Hip elevation exercises require a supine position with the thighs and lower legs straight, effectively training the muscles around the knee joint. Knee flexion exercises require keeping the thighs stationary while bending the lower legs relative to the thighs. Because these two training methods differ, the equipment used is generally different. For patients, switching between different training devices is not only inconvenient, but also problematic. Due to the different center of gravity on different devices, patients focus on shifting their weight during transitions, easily neglecting the injured knee joint and potentially causing secondary injury due to improper movements.

[0006] Currently, the different training devices used for hip-raising exercises and knee-bending exercises make it inconvenient for patients to switch between them. Furthermore, the technical problem of neglecting the knee joint and causing secondary knee injuries has not yet been properly resolved. Summary of the Invention

[0007] To address the shortcomings of existing technologies, the purpose of this invention is to provide a device for rehabilitation training of knee sprains, solving the technical problem that patients face inconvenience when switching between different training instruments used for hip elevation exercises and knee flexion exercises, and that neglecting the knee joint can easily lead to secondary knee injuries.

[0008] The above-mentioned objective of this invention is achieved through the following technical solutions:

[0009] This invention provides a device for rehabilitation training of knee sprains. This device helps patients with knee sprains perform knee flexion exercises and hip elevation exercises during rehabilitation training, including:

[0010] Support unit, the support unit being disposed on the ground;

[0011] A slide rail unit is disposed inside the support unit, and the end of the slide rail unit is connected to the support unit;

[0012] A placement unit, the bottom end of which is slidably disposed inside the slide rail unit, is used for a patient to be in a sitting or supine position. When the patient is in a sitting position on the placement unit, the placement unit is detachably connected to the slide rail unit and / or the first side of the support unit. When the patient is in a supine position on the placement unit, the placement unit is detachably connected to the slide rail unit and / or the second side of the support unit.

[0013] A knee flexion exercise unit is disposed inside the support unit and supported by the support unit, and is used for rehabilitation training of the patient's knee joint by performing knee flexion exercises when the patient is in a seated position in the placement unit.

[0014] A hip-raising exercise unit is disposed inside and supported by the support unit, and is used for rehabilitation training of the patient's knee joint to raise the hip when the patient is in a supine position in the placement unit.

[0015] As some embodiments, the support unit includes:

[0016] A base plate, which is set on the ground, and the upper surface of the base plate is provided with the knee flexion exercise unit and the hip raise exercise unit connected together;

[0017] Two vertical plates are symmetrically arranged at both ends of the base plate and connected to the base plate respectively. The vertical plate located at the first end of the base plate is connected to the hip-lifting exercise unit.

[0018] A support hole is provided in the vertical plate located at the second end of the base plate, and the knee flexion exercise unit is rotatably supported thereon.

[0019] The first support base is fixed to the outside of the vertical plate and is used to support the knee flexion exercise unit;

[0020] Two first connecting slots are symmetrically arranged. The first connecting slots are opened on the corresponding vertical plates and are detachably connected to the placement unit.

[0021] As some embodiments, the slide rail unit includes:

[0022] A slide rail element is disposed inside the support unit, the end of the slide rail element is connected to the support unit, and the mounting unit is slidably disposed inside the slide rail element;

[0023] At least two second connecting slots are provided, which are symmetrically provided on the slide rail element and are detachably connected to the mounting unit.

[0024] As some embodiments, the slide rail element includes:

[0025] The plate body has its two ends connected to the support unit;

[0026] A convex groove is formed along the length of the plate body, and the mounting unit is slidably disposed thereon.

[0027] As some embodiments, the placement unit includes:

[0028] A sliding element, the bottom end of which is slidably disposed inside the slide rail unit, and the top end of which is used to support the patient's buttocks;

[0029] Two thigh support plates are symmetrically arranged on the sliding element and connected to the sliding element respectively, for supporting the patient's thighs;

[0030] A backrest element is disposed on the side of the sliding element away from the thigh rest plate and is rotatably connected to the sliding element;

[0031] A fastening element is disposed between the backrest element and the sliding element, and is detachably connected to the backrest element and the sliding element respectively, for fixing the backrest element and the sliding element after the backrest element rotates relative to the sliding element;

[0032] Two first connecting elements are symmetrically arranged on both sides of the backrest element and are detachably connected to the support unit;

[0033] Two second connecting elements are symmetrically arranged on both sides of the backrest element and perpendicular to the first connecting element. The second connecting elements are detachably connected to the slide rail unit.

[0034] As some embodiments, the sliding element includes:

[0035] An I-beam, the bottom end of which is slidably disposed inside the slide rail unit, and the top end of which is used to support the patient's buttocks;

[0036] Two support rings are symmetrically fixed to the top of the side of the I-beam and are rotatably connected to both ends of the backrest element.

[0037] A plurality of first fastening holes are distributed on the support ring and are detachably connected to the backrest element and the fastening element, respectively.

[0038] As some embodiments, the backrest element includes:

[0039] A backrest, wherein the backrest is disposed on the side of the sliding element away from the thigh rest plate;

[0040] A first rotating rod is fixed to one end of the backrest near the sliding element and is rotatably connected to the sliding element.

[0041] A plurality of second fastening holes are distributed at the end of the first rotating rod and are detachably connected to the sliding element and the fastening element, respectively.

[0042] As some embodiments, the fastening element includes a plurality of first bolts, which are detachably connected to the backrest element and the sliding element, respectively.

[0043] As some embodiments, the first connecting element includes:

[0044] A first connecting plate is disposed on one side of the backrest element;

[0045] The second bolt passes through the first connecting plate and is detachably connected to the support unit.

[0046] As some embodiments, the second connecting element includes:

[0047] The second connecting plate is disposed on one side of the backrest element and is perpendicular to the first connecting element;

[0048] The third bolt passes through the second connecting plate and is detachably connected to the slide rail unit.

[0049] As some embodiments, the placement unit further includes:

[0050] Two first lacing elements are provided, each first lacing element is disposed on a corresponding thigh placement plate, the end of the first lacing element is connected to the thigh placement plate, and the first lacing element can bind or unbind the patient's thigh.

[0051] As some embodiments, the knee flexion exercise unit includes:

[0052] The second rotating rod is rotatably disposed at the second end of the support unit;

[0053] A first power element is disposed on the outer side of the second end of the support unit and connected to the second rotating rod, for driving the second rotating rod to rotate.

[0054] A right calf placement plate is fixed to the end of the second rotating rod away from the first power element and is used to place the patient's right calf and right foot.

[0055] The third rotating rod is disposed inside the support unit;

[0056] The second power element is disposed inside the support unit and connected to the third rotating rod, and is used to drive the third rotating rod to rotate.

[0057] A left calf placement plate is fixed to the end of the third rotating rod away from the second power element and is used to place the patient's left calf and left foot.

[0058] The second support is disposed inside the support unit, and the top of the second support is used to support the second power element;

[0059] The first electric push rod is disposed inside the support unit. The top end of the first electric push rod is connected to the bottom end of the second support base, and is used to drive the second support base and the second power element to move vertically up and down.

[0060] As some embodiments, the knee flexion exercise unit further includes:

[0061] A lifting sleeve is disposed inside the support unit, and the bottom end of the lifting sleeve is connected to the support unit;

[0062] A lifting plate is slidably disposed inside the lifting sleeve in a vertical direction, and the top of the lifting plate is rotatably supported by the third rotating rod;

[0063] A plurality of first limiting holes are provided on the lifting sleeve in a linear arrangement along the vertical direction;

[0064] The second limiting hole is located at the bottom end of the lifting plate;

[0065] The fourth bolt is respectively inserted into the second limiting hole and the first limiting hole;

[0066] The first nut is threadedly connected to the fourth bolt and abuts against the lifting sleeve.

[0067] As some embodiments, the hip-lifting exercise unit includes:

[0068] A third support base is disposed inside the support unit, and the bottom end of the third support base is connected to the support unit;

[0069] A placement platform, the bottom end of which is connected to the top end of the third support base, and the side of the placement platform away from the knee flexion exercise unit is connected to the support unit;

[0070] The second electric push rod is disposed inside the support unit, the bottom end of the second electric push rod is connected to the support unit, and the second electric push rod is perpendicular to the placement platform;

[0071] A limiting component, which is fixed to the top end of the second electric push rod;

[0072] A rotating plate, which is perpendicular to the second electric push rod and rotatably connected to the limiting member;

[0073] The fifth bolt is respectively inserted into the limiting member and the rotating plate;

[0074] The second nut is threadedly connected to the fifth bolt and abuts against the limiting member.

[0075] As some embodiments, the limiting member includes:

[0076] A column, the bottom end of which is fixed to the top end of the second electric push rod and is rotatably connected to the rotating plate;

[0077] Two limiting plates are symmetrically arranged at the top and bottom of the column to limit the rotation plate.

[0078] As some embodiments, the hip-lifting exercise unit further includes:

[0079] Two second lacing elements are symmetrically arranged on the rotating plate, with the ends of the second lacing elements connected to the rotating plate, and the second lacing elements can bind or unbind the patient's ankle.

[0080] The beneficial technical effects of this invention are as follows:

[0081] This invention discloses a device for rehabilitation training of knee sprains. It includes a knee flexion exercise unit for knee flexion exercises, a hip elevation exercise unit for hip elevation exercises, a placement unit that allows the patient to sit or lie supine, and a sliding rail unit that allows the placement unit to slide, facilitating easy switching between knee flexion and hip elevation exercises without causing secondary injury to the knee joint during the switching process. Attached Figure Description

[0082] Figure 1 This is a schematic diagram of the structure of the device for knee sprain rehabilitation training in an embodiment of the present invention during knee flexion exercises.

[0083] Figure 2 This is a schematic diagram of the device for knee sprain rehabilitation training in an embodiment of the present invention during hip elevation exercises.

[0084] Figure 3 This is a schematic diagram of the support unit in an embodiment of the present invention;

[0085] Figure 4 This is a schematic diagram of the slide rail unit in an embodiment of the present invention;

[0086] Figure 5 This is a schematic diagram of the placement unit in an embodiment of the present invention;

[0087] Figure 6 This is a schematic diagram of the structure of the sliding element in an embodiment of the present invention;

[0088] Figure 7 This is a schematic diagram of the backrest element in an embodiment of the present invention;

[0089] Figure 8 This is a schematic diagram of the knee flexion exercise unit in an embodiment of the present invention;

[0090] Figure 9 This is a schematic diagram of the hip-raising exercise unit in an embodiment of the present invention;

[0091] Figure 10 This is a schematic diagram of the limiting member in an embodiment of the present invention.

[0092] Figure label:

[0093] 1. Support unit; 11. Base plate; 12. Vertical plate; 13. Support hole; 14. First support base; 15. First connecting groove;

[0094] 2. Slide rail unit; 21. Slide rail element; 211. Plate; 212. Convex groove; 22. Second connecting groove;

[0095] 3. Placement unit; 31. Sliding element; 311. I-beam; 312. Support ring; 313. First fastening hole; 32. Thigh placement plate; 33. Backrest element; 331. Backrest; 332. First rotating rod; 333. Second fastening hole; 34. Fastening element; 341. First bolt; 35. First connecting element; 351. First connecting plate; 352. Second bolt; 36. Second connecting element; 361. Second connecting plate; 362. Third bolt; 37. First strap element;

[0096] 4. Knee flexion exercise unit; 41. Second rotating rod; 42. First power element; 43. Right calf placement plate; 44. Third rotating rod; 45. Second power element; 46. Left calf placement plate; 47. Second support base; 48. First electric push rod; 491. Lifting sleeve; 492. Lifting plate;

[0097] 5. Hip-raising exercise unit; 51. Third support seat; 52. Placement platform; 53. Second electric push rod; 54. Limiting component; 541. Column; 542. Limiting plate; 55. Rotating plate; 56. Fifth bolt; 57. Second nut; 58. Second strap element. Detailed Implementation

[0098] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application. Example

[0099] like Figure 1-2As shown, the present invention discloses a device for rehabilitation training of knee sprains. The device is used to help patients with knee sprains perform knee flexion exercises and hip elevation exercises for rehabilitation training. It includes a support unit 1, a slide rail unit 2, a placement unit 3, a knee flexion exercise unit 4, and a hip elevation exercise unit 5. The system comprises: a support unit 1 located on the ground; a slide rail unit 2 located inside the support unit 1, with its end connected to the support unit 1; a placement unit 3 slidably located at its bottom inside the slide rail unit 2, for use by the patient in a sitting or supine position; when the patient is in a sitting position on the placement unit 3, the placement unit 3 is detachably connected to the slide rail unit 2 and / or the first side of the support unit 1; when the patient is in a supine position on the placement unit 3, the placement unit 3 is detachably connected to the slide rail unit 2 and / or the second side of the support unit 1; a knee flexion exercise unit 4 located inside the support unit 1 and supported by the support unit 1, for rehabilitation training of the patient's knee joint by performing knee flexion exercises when the patient is in a sitting position on the placement unit 3; and a hip raise exercise unit 5 located inside the support unit 1 and supported by the support unit 1, for rehabilitation training of the patient's knee joint by performing hip raise exercises when the patient is in a supine position on the placement unit 3.

[0100] like Figure 3 As shown, the support unit 1 includes a base plate 11, two vertical plates 12, a support hole 13, a first support base 14, and two first connecting slots 15. The base plate 11 is placed on the ground, and its upper surface is provided with a knee flexion exercise unit 4 and a hip raise exercise unit 5 connected together. The two vertical plates 12 are symmetrically arranged at both ends of the base plate 11 and connected to it respectively. The vertical plate 12 located at the first end of the base plate 11 is connected to the hip raise exercise unit 5. The support hole 13 is opened in the vertical plate 12 located at the second end of the base plate 11 and rotatably supports the knee flexion exercise unit 4. The first support base 14 is fixed to the outside of the vertical plate 12 to support the knee flexion exercise unit 4. The two first connecting slots 15 are symmetrically arranged, with the first connecting slots 15 opened in the corresponding vertical plates 12 and detachably connected to the placement unit 3.

[0101] As some of the embodiments, the base plate 11 has a cuboid structure; the vertical plate 12 has a cuboid structure or the lower half has a cuboid structure and the upper half has a semi-cylindrical structure 541; the support hole 13 is a through hole of cylindrical 541; the first support seat 14 is a motor support seat; and the first connecting groove 15 is a threaded groove.

[0102] like Figure 4 As shown, the slide rail unit 2 includes a slide rail element 21 and at least two second connecting grooves 22. The slide rail element 21 is disposed inside the support unit 1, and the end of the slide rail element 21 is connected to the support unit 1. The mounting unit 3 is slidably disposed inside the slide rail element 21. The second connecting grooves 22 are symmetrically opened on the slide rail element 21 and are detachably connected to the mounting unit 3.

[0103] Specifically, the slide rail element 21 is disposed between the two vertical plates 12, and the end of the slide rail element 21 is connected to the two vertical plates 12. The mounting unit 3 is slidably disposed inside the slide rail element 21. The second connecting groove 22 is symmetrically opened on the slide rail element 21 and is detachably connected to the mounting unit 3.

[0104] As one embodiment, there are two second connecting slots 22, which are symmetrically opened on the slide rail element 21.

[0105] As some embodiments, there are four second connecting slots 22, with two slots forming a group, and the two groups of second connecting slots 22 are symmetrically opened on the slide rail element 21.

[0106] As one of the embodiments, the second connecting groove 22 is a threaded groove.

[0107] Furthermore, the slide rail element 21 includes a plate 211 and a convex groove 212. The two ends of the plate 211 are respectively connected to the support unit 1; the convex groove 212 is opened in the plate 211 along the length direction of the plate 211 and is slidably provided with the mounting unit 3.

[0108] like Figure 5 As shown, the placement unit 3 includes a sliding element 31, two thigh placement plates 32, a backrest element 33, a fastening element 34, two first connecting elements 35, and two second connecting elements 36. The sliding element 31 is slidably disposed at its bottom end inside the slide rail unit 2, and its top end is used to support the patient's buttocks. Two thigh support plates 32 are symmetrically disposed on the sliding element 31 and connected to the sliding element 31 respectively, for supporting the patient's thighs. The backrest element 33 is disposed on the side of the sliding element 31 away from the thigh support plates 32 and is rotatably connected to the sliding element 31. The fastening element 34 is disposed between the backrest element 33 and the sliding element 31 and is detachably connected to both the backrest element 33 and the sliding element 31 respectively, for fixing the backrest element 33 and the sliding element 31 after the backrest element 33 rotates relative to the sliding element 31. Two first connecting elements 35 are symmetrically disposed on both sides of the backrest element 33 and are detachably connected to the support unit 1. Two second connecting elements 36 are symmetrically disposed on both sides of the backrest element 33 and are perpendicular to the first connecting elements 35, and are detachably connected to the slide rail unit 2.

[0109] As some of the embodiments, such as Figure 6As shown, the sliding element 31 includes an I-beam 311, two support rings 312, and several first fastening holes 313. The bottom end of the I-beam 311 is slidably disposed in the convex groove 212, and the top end of the I-beam 311 is used to support the patient's buttocks. The two support rings 312 are symmetrically fixed to the top ends of the sides of the I-beam 311 and are rotatably connected to both ends of the backrest element 33. Several first fastening holes 313 are distributed on the support rings 312 and are detachably connected to the backrest element 33 and the fastening element 34, respectively.

[0110] Among them, four first fastening holes 313 are arranged in a ring array corresponding to each support ring 312, and the first fastening holes 313 are threaded holes.

[0111] Specifically, the bottom end of the sliding element 31 is slidably disposed inside the slide rail element 21; the first connecting element 35 is detachably connected to the first connecting groove 15; and the second connecting element 36 is detachably connected to the second connecting groove 22.

[0112] As one of the embodiments, the thigh placement plate 32 has a cuboid structure.

[0113] like Figure 7 As shown, the backrest element 33 includes a backrest 331, a first rotating rod 332, and a plurality of second fastening holes 333. The backrest 331 is located on the side of the sliding element 31 away from the thigh rest plate 32; the first rotating rod 332 is fixed to the end of the backrest 331 near the sliding element 31 and is rotatably connected to the sliding element 31; the plurality of second fastening holes 333 are distributed at the ends of the first rotating rod 332 and are detachably connected to the sliding element 31 and the fastening element 34, respectively.

[0114] The first rotating rod 332 is rotatably connected to the two support rings 312.

[0115] The number of second fastening holes 333 is the same as the number of first fastening holes 313, and they are set in a one-to-one correspondence with the first fastening holes 313. The second fastening holes 333 are through holes.

[0116] Furthermore, the fastening element 34 includes a plurality of first bolts 341, which are detachably connected to the backrest element 33 and the sliding element 31 respectively.

[0117] Specifically, the number of first bolts 341 is the same as the number of second fastening holes 333, and the first bolts 341 pass through the first fastening hole 313 and are threadedly connected to the second fastening hole 333.

[0118] The backrest 331 can rotate relative to the I-beam 311 by rotating the first rotating rod 332 on the support ring 312. The backrest 331 and the I-beam 311 are relatively fixed by threading the first bolt 341 through the first fastening hole 313 and the second fastening hole 333. When the backrest 331 and the I-beam 311 are perpendicular to each other, the patient is in a sitting position. When the backrest 331 and the I-beam 311 are at 180°, the patient is in a supine position.

[0119] Furthermore, the first connecting element 35 includes a first connecting plate 351 and a second bolt 352. The first connecting plate 351 is disposed on one side of the backrest element 33; the second bolt 352 passes through the first connecting plate 351 and is detachably connected to the support unit 1.

[0120] Specifically, the first connecting plate 351 is fixedly connected to the backrest 331; the second bolt 352 is threadedly connected to the first connecting groove 15.

[0121] Furthermore, the second connecting element 36 includes a second connecting plate 361 and a third bolt 362. The second connecting plate 361 is disposed on one side of the backrest element 33 and is perpendicular to the first connecting element 35; the third bolt 362 passes through the second connecting plate 361 and is detachably connected to the slide rail unit 2.

[0122] Specifically, the second connecting plate 361 is fixedly connected to the backrest 331, and the third bolt 362 is threadedly connected to the second connecting groove 22.

[0123] Furthermore, the placement unit 3 also includes two first lacing elements 37, which are disposed on the corresponding thigh placement plate 32. The ends of the first lacing elements 37 are connected to the thigh placement plate 32, and the first lacing elements 37 can bind or unbind the patient's thigh.

[0124] The first lacing element 37 includes a first lacing and a first Velcro strap. The two ends of the first lacing are connected to the thigh placement plate 32. The first Velcro strap is disposed on the first lacing and the opening and closing of the first lacing are achieved through the first Velcro strap, thereby binding or unbinding the patient's thigh.

[0125] like Figure 8As shown, the knee flexion exercise unit 4 includes a second rotating rod 41, a first power element 42, a right lower leg placement plate 43, a third rotating rod 44, a second power element 45, a left lower leg placement plate 46, a second support base 47, and a first electric push rod 48. The second rotating rod 41 is rotatably mounted at the second end of the support unit 1; the first power element 42 is located on the outside of the second end of the support unit 1 and connected to the second rotating rod 41, used to drive the second rotating rod 41 to rotate; the right calf placement plate 43 is fixed to the end of the second rotating rod 41 away from the first power element 42, used to place the patient's right calf and right foot; the third rotating rod 44 is located inside the support unit 1; the second power element 45 is located inside the support unit 1 and connected to the third rotating rod 44, used to drive the third rotating rod 44 to rotate; the left calf placement plate 46 is fixed to the end of the third rotating rod 44 away from the second power element 45, used to place the patient's left calf and left foot; the second support seat 47 is located inside the support unit 1, and the top of the second support seat 47 is used to support the second power element 45; the first electric push rod 48 is located inside the support unit 1, and the top of the first electric push rod 48 is connected to the bottom of the second support seat 47, used to drive the second support seat 47 and the second power element 45 to move vertically.

[0126] The first power element 42 and the second power element 45 have the same structure, the second rotating rod 41 and the third rotating rod 44 have the same structure, and the right lower leg placement plate 43 and the left lower leg placement plate 46 have the same structure.

[0127] As some embodiments, the first power element 42 / second power element 45 includes a stepper motor, a reducer, and a coupling. The output end of the stepper motor is connected to the reducer, and the output end of the stepper motor is connected to the second rotating rod 41 / third rotating rod 44 through the coupling.

[0128] As some of the embodiments, the right calf placement plate 43 and the left calf placement plate 46 have a 7-shaped structure.

[0129] When the patient is seated on top of the sliding element 31, the patient's lower leg and foot are on the right lower leg placement plate 43 and / or the left lower leg placement plate 46. The first power element 42 drives the second rotating rod 41 and the right lower leg placement plate 43 to rotate at a certain angle, and the second power element 45 drives the third rotating rod 44 and the left lower leg placement plate 46 to rotate at a certain angle, so as to perform knee flexion exercises.

[0130] The first electric push rod 48 drives the second power element 45 and the third rotating rod 44 to rise. When the patient is sitting and performing knee flexion exercises on their left knee joint, the first electric push rod 48 is raised to a suitable height. When the patient needs to switch from knee flexion exercises to hip elevation exercises, the first electric push rod 48 drives the second power element 45 and the third rotating rod 44 to descend. During the sliding process of the sliding element 31 within the slide rail element 21, it will not obstruct the movement of the patient's lower leg and foot.

[0131] Furthermore, the knee flexion exercise unit 4 also includes a lifting sleeve 491, a lifting plate 492, several first limiting holes, second limiting holes, a fourth bolt, and a first nut. The lifting sleeve 491 is disposed inside the support unit 1, with its bottom end connected to the support unit 1. The lifting plate 492 is slidably disposed inside the lifting sleeve 491 in a vertical direction, and its top is rotatably supported by a third rotating rod 44. Several first limiting holes are linearly arranged in the vertical direction on the lifting sleeve 491. Second limiting holes are located at the bottom end of the lifting plate 492. The fourth bolt passes through the second limiting holes and the first limiting holes respectively. The first nut is threadedly connected to the fourth bolt and abuts against the lifting sleeve 491.

[0132] The lifting sleeve 491 is located between the two vertical plates 12, and the bottom end of the lifting sleeve 491 is connected to the base plate 11.

[0133] The lifting stroke of the lifting plate 492 is the same as that of the first electric push rod 48. After the first electric push rod 48 rises to the desired height, the lifting plate 492 and the lifting sleeve 491 are fixed relative to each other by the threaded connection of the first nut and the fourth bolt.

[0134] A third rotating rod 44 is rotatably supported on the top of the lifting plate 492. The lifting plate 492 is raised and lowered inside the lifting sleeve 491. It is connected to the first nut by a fourth bolt passing through the first limit hole and the second limit hole, so as to ensure that the third rotating rod 44 can be stably supported while following the first electric push rod 48 to rise and fall.

[0135] like Figure 9As shown, the hip-raising exercise unit 5 includes a third support base 51, a placement platform 52, a second electric push rod 53, a limiting member 54, a rotating plate 55, a fifth bolt 56, and a second nut 57. The third support base 51 is located inside the support unit 1, with its bottom end connected to the support unit 1. The bottom end of the placement platform 52 is connected to the top end of the third support base 51, and the side of the placement platform 52 away from the knee-bending exercise unit 4 is connected to the support unit 1. The second electric push rod 53 is located inside the support unit 1, with its bottom end connected to the support unit 1, and is perpendicular to the placement platform 52. The limiting member 54 is fixed to the top end of the second electric push rod 53. The rotating plate 55 is perpendicular to the second electric push rod 53 and rotatably connected to the limiting member 54. The fifth bolt 56 passes through the limiting member 54 and the rotating plate 55 respectively. The second nut 57 is threadedly connected to the fifth bolt 56 and abuts against the limiting member 54.

[0136] Specifically, the third support 51 is disposed between the two vertical plates 12, and the bottom end of the third support 51 is connected to the base plate 11; the side of the placement platform 52 away from the knee flexion exercise unit 4 is connected to the vertical plate 12; the second electric push rod 53 is disposed between the two vertical plates 12, and the bottom end of the second electric push rod 53 is connected to the base plate 11.

[0137] When performing hip-raising exercises, raise the second electric push rod 53 and rotate the rotating plate 55 above the placement platform 52. The patient's ankle is positioned at the top of the rotating plate 55. After the patient's thigh and calf are straightened, the second electric push rod 53 continues to rise, and the patient's knee joint performs hip-raising exercises.

[0138] like Figure 10 As shown, the limiting member 54 includes a column 541 and two limiting plates 542. The bottom end of the column 541 is fixed to the top end of the second electric push rod 53 and is rotatably connected to the rotating plate 55; the two limiting plates 542 are symmetrically arranged at the top and bottom ends of the column 541 to limit the rotation plate 55.

[0139] Among them, the two limiting plates 542 are provided with through holes for the fifth bolt 56 to pass through.

[0140] Furthermore, the hip-lifting exercise unit 5 also includes two second lacing elements 58, which are symmetrically arranged on the rotating plate 55. The ends of the second lacing elements 58 are connected to the rotating plate 55, and the second lacing elements 58 can bind or unbind the patient's ankles.

[0141] The structure of the second lacing element 58 is the same as that of the first lacing element 37. The second lacing element 58 includes a second lacing and a second Velcro strap. The two ends of the second lacing are connected to the rotating plate 55. The second Velcro strap is set on the second lacing and the second lacing is opened and closed through the second Velcro strap, thereby binding or unbinding the patient's ankle.

[0142] The usage process of this embodiment is as follows:

[0143] When the patient is seated on top of the sliding element 31, the patient's lower leg and foot are positioned on the right lower leg placement plate 43 and / or the left lower leg placement plate 46. The first power element 42 drives the second rotating rod 41 and the right lower leg placement plate 43 to rotate at a certain angle, and the second power element 45 drives the third rotating rod 44 and the left lower leg placement plate 46 to rotate at a certain angle to perform knee flexion exercises. The first electric push rod 48 drives the second power element 45 and the third rotating rod 44 to rise. When the patient is seated and performing knee flexion exercises on their left knee joint, the first electric push rod 48 is raised to a suitable height. The first rotating rod 332 rotates on the support ring 312 to achieve rotation of the backrest 331 relative to the I-beam 311. The backrest 331 and the I-beam 311 are relatively fixed in position by the first bolt 341 passing through the first fastening hole 313 and the second fastening hole 333 for threaded connection. When the backrest 331 and the I-beam 311 are perpendicular to each other, the patient is in a seated position.

[0144] When the patient needs to switch from knee flexion exercises to hip elevation exercises, the first electric push rod 48 drives the second power element 45 and the third rotating rod 44 to descend. During the sliding of the sliding element 31 inside the slide rail element 21, it will not hinder the movement of the patient's lower leg and foot. The first rotating rod 332 can rotate the backrest 331 relative to the I-beam 311 by rotating on the support ring 312. The backrest 331 and the I-beam 311 are relatively fixed by threading the first bolt 341 through the first fastening hole 313 and the second fastening hole 333. When the backrest 331 and the I-beam 311 are at 180°, the patient adopts a supine position and performs hip elevation exercises. The second electric push rod 53 is raised and the rotating plate 55 is rotated above the placement platform 52. The patient's ankle is located at the top of the rotating plate 55. After the patient's thigh and lower leg are straightened, the second electric push rod 53 continues to rise, and the patient's knee joint performs hip elevation exercises.

[0145] The advantages of this embodiment are that by setting up a knee flexion exercise unit, the patient's knee joint can be rehabilitated by knee flexion exercises; by setting up a hip elevation exercise unit, the patient's knee joint can be rehabilitated by hip elevation exercises; by setting up a placement unit, the patient can be placed on it in both sitting and supine positions; by setting up a sliding rail unit, and the placement unit can slide on the sliding rail unit, the patient can easily switch between knee flexion exercise rehabilitation training and hip elevation exercise rehabilitation training without causing secondary damage to the knee joint during the switching process.

[0146] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Furthermore, the above embodiments can be combined with each other for use. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A device for rehabilitation training of knee sprains, the device being used to assist patients with knee sprains in performing knee flexion exercises and hip elevation exercises, characterized in that, include: Support unit (1), the support unit (1) is disposed on the ground; A slide rail unit (2) is disposed inside the support unit (1), and the end of the slide rail unit (2) is connected to the support unit (1); The placement unit (3) is slidably disposed inside the slide rail unit (2) at its bottom end. The placement unit (3) is used for the patient to sit or lie on it. When the patient is in a sitting position on the placement unit (3), the placement unit (3) is detachably connected to the first side of the slide rail unit (2) and / or the support unit (1). When the patient is in a lying position on the placement unit (3), the placement unit (3) is detachably connected to the second side of the slide rail unit (2) and / or the support unit (1). Knee flexion exercise unit (4), the knee flexion exercise unit (4) is disposed inside the support unit (1) and supported by the support unit (1), and is used for rehabilitation training of the patient's knee joint by performing knee flexion exercises when the patient is in a seated position in the placement unit (3); Hip-raising exercise unit (5), which is located inside the support unit (1) and supported by the support unit (1), is used for rehabilitation training of the patient's knee joint to raise the hip when the patient is in a supine position in the placement unit (3).

2. The device according to claim 1, characterized in that, The support unit (1) includes: A base plate (11) is set on the ground, and the upper surface of the base plate (11) is provided with the knee flexion exercise unit (4) and the hip lift exercise unit (5) connected together; Two vertical plates (12) are symmetrically arranged at both ends of the base plate (11) and connected to the base plate (11) respectively. The vertical plate (12) located at the first end of the base plate (11) is connected to the hip-raising exercise unit (5). Support hole (13), the support hole (13) is opened in the vertical plate (12) located at the second end of the base plate (11), and the knee bending exercise unit (4) is rotatably supported; The first support seat (14) is fixed to the outside of the vertical plate (12) and is used to support the knee flexion exercise unit (4); Two first connecting slots (15) are symmetrically arranged. The first connecting slots (15) are opened on the corresponding vertical plate (12) and are detachably connected to the placement unit (3).

3. The device according to claim 1, characterized in that, The slide rail unit (2) includes: A slide rail element (21) is disposed inside the support unit (1), the end of the slide rail element (21) is connected to the support unit (1), and the placement unit (3) is slidably disposed inside the slide rail element (21); At least two second connecting slots (22) are provided, which are symmetrically provided on the slide rail element (21) and are detachably connected to the mounting unit (3).

4. The device according to claim 3, characterized in that, The slide rail element (21) includes: Plate (211), the two ends of which are respectively connected to the support unit (1); A convex groove (212) is formed along the length of the plate (211) and the mounting unit (3) is slidably disposed thereon.

5. The device according to claim 1, characterized in that, The placement unit (3) includes: A sliding element (31) is provided at its bottom end inside the slide rail unit (2), and at its top end is used to support the patient's buttocks. Two thigh support plates (32) are symmetrically arranged on the sliding element (31) and connected to the sliding element (31) respectively, for supporting the patient's thighs; A backrest element (33) is disposed on the side of the sliding element (31) away from the thigh rest plate (32) and is rotatably connected to the sliding element (31); Fastening element (34) is disposed between the backrest element (33) and the sliding element (31), and is detachably connected to the backrest element (33) and the sliding element (31) respectively, for fixing the backrest element (33) and the sliding element (31) after the backrest element (33) rotates relative to the sliding element (31); Two first connecting elements (35) are symmetrically arranged on both sides of the backrest element (33) and are detachably connected to the support unit (1); Two second connecting elements (36) are symmetrically arranged on both sides of the backrest element (33) and perpendicular to the first connecting element (35). The second connecting elements (36) are detachably connected to the slide rail unit (2).

6. The device according to claim 5, characterized in that, The sliding element (31) includes: An I-beam (311) is provided at its bottom end inside the slide rail unit (2), and at its top end is used to support the patient's buttocks. Two support rings (312) are symmetrically fixed to the top of the side of the I-beam (311) and rotatably connected to both ends of the backrest element (33). A plurality of first fastening holes (313) are distributed on the support ring (312) and are detachably connected to the backrest element (33) and the fastening element (34), respectively; and / or The backrest element (33) includes: Backrest (331), the backrest (331) is disposed on the side of the sliding element (31) away from the thigh rest plate (32); The first rotating rod (332) is fixed to one end of the backrest (331) near the sliding element (31) and is rotatably connected to the sliding element (31); A plurality of second fastening holes (333) are distributed at the end of the first rotating rod (332) and are detachably connected to the sliding element (31) and the fastening element (34), respectively; and / or The fastening element (34) includes a plurality of first bolts (341), which are detachably connected to the backrest element (33) and the sliding element (31), respectively; and / or The first connecting element (35) includes: A first connecting plate (351) is disposed on one side of the backrest element (33); A second bolt (352) passes through the first connecting plate (351) and is detachably connected to the support unit (1); and / or The second connecting element (36) includes: The second connecting plate (361) is disposed on one side of the backrest element (33) and is perpendicular to the first connecting element (35); A third bolt (362) passes through the second connecting plate (361) and is detachably connected to the slide rail unit (2); and / or The placement unit (3) also includes: Two first lacing elements (37) are provided on the corresponding thigh placement plate (32). The ends of the first lacing elements (37) are connected to the thigh placement plate (32), and the first lacing elements (37) can bind or unbind the patient's thigh.

7. The device according to claim 1, characterized in that, The knee flexion exercise unit (4) includes: The second rotating rod (41) is rotatably disposed at the second end of the support unit (1); The first power element (42) is disposed on the outer side of the second end of the support unit (1) and connected to the second rotating rod (41) for driving the second rotating rod (41) to rotate. A right calf placement plate (43) is fixed to the end of the second rotating rod (41) away from the first power element (42) and is used to place the patient's right calf and right foot. The third rotating rod (44) is disposed inside the support unit (1); The second power element (45) is disposed inside the support unit (1) and connected to the third rotating rod (44) for driving the third rotating rod (44) to rotate. A left calf placement plate (46) is fixed to the end of the third rotating rod (44) away from the second power element (45) and is used to place the patient's left calf and left foot. The second support base (47) is disposed inside the support unit (1), and the top of the second support base (47) is used to support the second power element (45); The first electric push rod (48) is disposed inside the support unit (1). The top end of the first electric push rod (48) is connected to the bottom end of the second support seat (47) and is used to drive the second support seat (47) and the second power element (45) to move vertically.

8. The device according to claim 7, characterized in that, The knee flexion exercise unit (4) also includes: A lifting sleeve (491) is disposed inside the support unit (1), and the bottom end of the lifting sleeve (491) is connected to the support unit (1). The lifting plate (492) is slidably disposed inside the lifting sleeve (491) in the vertical direction, and the top of the lifting plate (492) is rotatably supported by the third rotating rod (44). A plurality of first limiting holes are provided on the lifting sleeve (491) in a linear arrangement along the vertical direction; The second limiting hole is located at the bottom end of the lifting plate (492); The fourth bolt is respectively inserted into the second limiting hole and the first limiting hole; The first nut is threadedly connected to the fourth bolt and abuts against the lifting sleeve (491).

9. The device according to claim 1, characterized in that, The hip-lifting exercise unit (5) includes: The third support (51) is disposed inside the support unit (1), and the bottom end of the third support (51) is connected to the support unit (1). The bottom end of the placement platform (52) is connected to the top end of the third support base (51), and the side of the placement platform (52) away from the knee bending exercise unit (4) is connected to the support unit (1). The second electric push rod (53) is disposed inside the support unit (1), the bottom end of the second electric push rod (53) is connected to the support unit (1), and the second electric push rod (53) is perpendicular to the placement platform (52). A limiting member (54) is fixed to the top end of the second electric push rod (53); A rotating plate (55) is arranged perpendicularly to the second electric push rod (53) and is rotatably connected to the limiting member (54); The fifth bolt (56) is respectively inserted into the limiting member (54) and the rotating plate (55); The second nut (57) is threadedly connected to the fifth bolt (56) and abuts against the limiting member (54).

10. The device according to claim 9, characterized in that, The limiting member (54) includes: The bottom end of the column (541) is fixed to the top end of the second electric push rod (53) and is rotatably connected to the rotating plate (55); Two limiting plates (542) are symmetrically arranged at the top and bottom ends of the column (541) to limit the rotation plate (55); and / or The hip-lifting exercise unit (5) also includes: Two second lacing elements (58) are symmetrically arranged on the rotating plate (55). The ends of the second lacing elements (58) are connected to the rotating plate (55), and the second lacing elements (58) can bind or unbind the patient's ankle.

Images