Training device for promoting knee joint flexion and extension separation movement of hemiplegic patient

Abstract

The utility model belongs to the technical field of rehabilitation medical instruments, particularly relates to a training device for promoting knee joint flexion and extension separation movement of a hemiplegic patient, and aims to solve the problems that in the prior art, when the patient carries out leg flexion and extension training after wearing roller skates, the working intensity of a therapist cannot be effectively reduced, and when the roller skates are adopted for training, the labor intensity of the therapist cannot be effectively reduced. In order to solve the problem that the training quality of the legs of the patient is difficult to control in the prior art, the utility model provides the following scheme that the leg training device comprises a bottom frame, anti-skidding ground feet are arranged at the four corners of the bottom of the bottom frame, and the leg training device further comprises a supporting mechanism which is arranged in the bottom frame. At the moment, when a patient carries out leg flexion and extension training, linear motion can be kept, and necessary auxiliary reference can be provided when the patient is trained, so that in the actual use process, the working intensity of a therapist can be reduced, and it can be guaranteed that the training quality does not deviate.

Description

Technical Field

[0001] The utility model relates to the technical field of rehabilitation medical devices, in particular to a trainer for promoting the flexion and extension separation movement of the knee joint of hemiplegic patients. Background Technique

[0002] According to medical theory and practical experience, patients with lower limb injuries caused by sequelae of stroke hemiplegia or accidental accidents need to perform leg flexion and extension training for a long time, which helps the recovery of limb function. However, due to the functional impairment of the patients, when performing leg flexion and extension training, generally, due to the direct contact between the shoe surface and the ground, the existing friction is relatively large. However, since the leg that the patient needs to practice itself has a functional impairment, there is a certain inconvenience when performing flexion and extension training;

[0003] Therefore, during the patient's training, the therapist tries to wear roller skates on the legs of the patient who needs to practice, so as to reduce the resistance between the shoe surface and the ground when the patient flexes and extends the legs. However, when using roller skates for flexion and extension training, there are still the following deficiencies:

[0004] 1. After the roller skates are worn, during the patient's training process, due to the poor self-control ability of the patient's legs, it is difficult to ensure that the movement is always in a straight line direction. During the actual training process, the therapist still needs to hold the patient's legs by hand to ensure that the patient performs flexion and extension training in the correct form. However, this method can actually reduce the work intensity of the therapist is limited, and it will still cause a heavy work intensity to the therapist;

[0005] 2. When using roller skates for assisted training, it is difficult to ensure that the degree of leg extension of the patient is consistent during the flexion and extension training of the patient, so that it is difficult to control the training effect when the patient is training;

[0006] Therefore, regarding the above two technical problems, the present technical solution proposes a trainer for promoting the flexion and extension separation movement of the knee joint of hemiplegic patients to solve the above-mentioned problems. Content of the Utility Model

[0007] The purpose of the utility model is to solve the deficiencies in the prior art that when the patient performs leg flexion and extension training after wearing roller skates, the work intensity of the therapist cannot be effectively reduced, and when using roller skates for training, it is difficult to control the training quality of the patient's legs, and a trainer for promoting the flexion and extension separation movement of the knee joint of hemiplegic patients is proposed.

[0008] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0009] A trainer for promoting the appearance of flexion and extension separation movement of the knee joint in hemiplegic patients, including a chassis, and anti-slip feet are installed at the four corners of the bottom of the chassis. The trainer further includes:

[0010] A support mechanism, which is installed inside the chassis. A pedal is installed on the support mechanism. The pedal is used to position and support the patient's foot, and the support mechanism is used to support the pedal for lateral sliding, so as to ensure that the patient's foot can move linearly during the flexion and extension leg training;

[0011] A binding mechanism, which is installed on the pedal. The binding mechanism is used to fix and bind the patient's foot, so that when the patient performs flexion and extension leg training, the pedal can move stably with the patient's foot and stably support the patient's leg;

[0012] A limiting mechanism, which is installed on the inner wall of the bottom of the chassis and on the support mechanism. The support mechanism is used to limit the moving range of the pedal, so as to ensure that the degree of leg extension remains consistent when the patient performs flexion and extension training.

[0013] In a possible design, the support mechanism includes two slide bars symmetrically and fixedly installed inside the chassis. The same slide plate is slidably sleeved on the two slide bars, and the pedal is fixedly installed on the top of the slide plate.

[0014] In a possible design, a tension spring is sleeved on the slide bar on one side of the slide plate. The two ends of the tension spring are respectively fixedly connected to one inner wall of the chassis and one side of the slide plate.

[0015] In a possible design, the binding mechanism includes a strap fixedly installed on one side of the pedal. A fixed frame is fixedly installed on the other side of the pedal. The strap passes through the fixed frame. A pressing plate is slidably connected inside the fixed frame. One side of the pressing plate is rotatably connected to a screw rod. A nut is fixedly installed on one side of the fixed frame. The screw rod passes through the nut and is threadedly connected to the nut.

[0016] In a possible design, the limiting mechanism includes a limiting baffle plate, which is slidably sleeved on the two slide bars. The limiting baffle plate is located on the side of the slide plate away from the tension spring. A positioning strip is fixedly installed on the inner wall of the bottom of the chassis. A plurality of slots are equidistantly opened at the top of the positioning strip. A positioning component is installed on one side of the limiting baffle plate, and the positioning component is respectively movably clamped with the plurality of slots.

[0017] In a possible design, the positioning component includes a support plate fixedly installed on the top of one side of the limiting baffle plate. A plug rod is slidably penetrated through the support plate. The plug rod is respectively movably clamped with the plurality of slots. A compression spring is sleeved on the plug rod below the support plate. The top and bottom ends of the compression spring are respectively fixedly connected to the bottom of the support plate and the plug rod.

[0018] In a possible design, two rubber strips are symmetrically and fixedly installed on the other side of the limit baffle.

[0019] In this application, first, place the foot of the patient that needs flexion and extension training on the pedal. Then, use the strap to tie the patient's foot and pass the strap through the fixing frame. After that, rotate the screw. Under the action of the screw thread transmission with the nut, the pressure plate can be driven to approach the pedal. At this time, in cooperation with the side of the pedal, the strap can be clamped, so as to stably tie the patient's foot and enable the pedal to move flexibly with the patient's foot. Then, according to the length of the patient's leg extension during daily training, move the limit baffle to the specified position. After the position of the limit baffle is adjusted, release the plug rod. The compressed spring in the stressed state can push the plug rod downward so that the plug rod can be inserted into the corresponding slot, thereby limiting the position of the limit baffle and preventing it from moving after being impacted by the sliding plate. Then, when the patient performs leg flexion and extension exercises, the sliding cooperation between the sliding rod and the sliding plate can reduce the resistance when the patient's leg flexes and extends, and can ensure that the foot moves in a straight line. After the sliding plate moves with the patient's foot and contacts the two rubber strips on the limit baffle, the patient can perform knee flexion movement. And when the patient performs leg extension exercises, push the sliding plate to move. At this time, the tension spring is in a tensioned state and can provide a certain resistance load when the patient performs leg extension exercises. And when the patient performs leg knee flexion and contraction, the tension spring in the stressed state can use its elastic potential energy to provide a pulling force to the sliding plate to assist the patient in performing leg contraction movement. Therefore, when this technical solution is actually used, it can greatly reduce the working intensity of the therapist and ensure that the training quality of the patient will not be reduced.

[0020] Beneficial effects:

[0021] In the present utility model, for the training device that promotes the occurrence of knee joint flexion and extension separation movement in hemiplegic patients, through the support mechanism, a sliding mechanism composed of two sliding rods and a sliding plate can keep the pedal moving in a straight line after the pedal is installed on the sliding plate. In this way, when the patient performs leg flexion and extension training, the patient's foot can move in a straight line, without the need for the therapist to press the leg for assistance, which can effectively reduce the working intensity of the therapist;

[0022] In the present utility model, for the training device that promotes the occurrence of knee joint flexion and extension separation movement in hemiplegic patients, through the binding mechanism, after tying the patient's foot with the strap, rotate the screw. Under the action of the screw thread transmission with the nut, the pressure plate can be driven to approach the pedal. At this time, in cooperation with the side of the pedal, the strap can be clamped, so as to stably tie the patient's foot and enable the pedal to move flexibly with the patient's foot;

[0023] In the present utility model, for the trainer that promotes the occurrence of flexion and extension separation movement of the knee joint of hemiplegic patients, through the limiting mechanism, after the limiting baffle is preset at a position, it can be positioned and inserted into the slot by the positioning component. Then, when the patient performs leg flexion and extension exercises, the limiting baffle can be used as a reference, that is: after the skateboard contacts the limiting baffle, the patient can perform the knee flexion movement. In this way, when the patient performs leg flexion and extension training, a stable reference can be provided to ensure that the training quality of the patient can reach consistency.

[0024] After binding the foot of the patient to be trained on the pedal in the present utility model, at this time, when the patient performs leg flexion and extension training, a linear motion can be maintained, and necessary auxiliary reference can be provided during the patient's training. Therefore, in the actual use process, the working intensity of the therapist can be reduced, and the training quality can be ensured not to deviate. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a three-dimensional schematic diagram of the first perspective structure of a trainer for promoting the occurrence of flexion and extension separation movement of the knee joint of hemiplegic patients proposed by the present utility model;

[0026] Figure 2 is a three-dimensional schematic diagram of the second perspective structure of a trainer for promoting the occurrence of flexion and extension separation movement of the knee joint of hemiplegic patients proposed by the present utility model;

[0027] Figure 3 is a three-dimensional schematic diagram of the side perspective structure of a trainer for promoting the occurrence of flexion and extension separation movement of the knee joint of hemiplegic patients proposed by the present utility model.

[0028] In the figure: 1, chassis; 2, slide bar; 3, skateboard; 4, pedal; 5, strap; 6, fixed frame; 7, pressing plate; 8, nut; 9, screw rod; 10, limiting baffle; 11, support plate; 12, tension spring; 13, positioning strip; 14, slot; 15, rubber strip; 16, plug rod; 17, compression spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0030] Embodiment 1

[0031] Refer to Figures 1-3 , a trainer, including a chassis 1, anti-slip floor feet are installed at the four corner positions of the bottom of the chassis 1 to ensure the stability of the trainer during use. The trainer further includes a support mechanism, a binding mechanism, and a limiting mechanism.

[0032] The supporting mechanism is composed of two sliding rods 2 symmetrically and fixedly installed in the chassis 1. A same sliding plate 3 is slidably sleeved on the two sliding rods 2. The pedal 4 is fixedly installed on the top of the sliding plate 3. Through the sliding mechanism composed of the two sliding rods 2 and the sliding plate 3, the sliding plate 3 drives the pedal 4 to move linearly, so as to keep the patient's feet moving linearly when performing leg flexion and extension training.

[0033] A tension spring 12 is sleeved on the sliding rod 2 on one side of the sliding plate 3. The two ends of the tension spring 12 are respectively fixedly connected with the inner wall of one side of the chassis 1 and one side of the sliding plate 3. When the patient performs leg extension exercise, the tension spring 12 is stretched to provide a certain resistance load for the patient; when the patient performs leg flexion and contraction, the tension spring 12 utilizes its elastic potential energy to assist the patient in performing leg contraction movement.

[0034] The binding mechanism includes a binding strap 5 fixedly installed on one side of the pedal 4. A fixed frame 6 is fixedly installed on the other side of the pedal 4. The binding strap 5 passes through the fixed frame 6. A pressing plate 7 is slidably connected in the fixed frame 6. One side of the pressing plate 7 is rotatably connected with a screw rod 9. A nut 8 is fixedly installed on one side of the fixed frame 6. The screw rod 9 passes through the nut 8 and is threadedly connected with the nut 8. After the patient's feet are tied tightly with the binding strap 5, the screw rod 9 is rotated. Under the action of the screw thread transmission of the nut 8, the pressing plate 7 approaches the pedal 4 and cooperates with the side surface of the pedal 4 to clamp the binding strap 5, so as to realize stable binding of the patient's feet.

[0035] This application can be used in the technical field of rehabilitation medical devices, and can also be used in other fields applicable to this application.

[0036] Embodiment 2

[0037] Reference Figure 3, improved on the basis of Embodiment 1: A trainer for promoting the appearance of flexion and extension separation movement of the knee joint of hemiplegic patients, which is applied to the technical field of rehabilitation medical devices. The limiting mechanism includes a limiting baffle 10, which is slidably sleeved on two sliding rods 2 and is located on the side of the sliding plate 3 away from the tension spring 12. A positioning strip 13 is fixedly installed on the bottom inner wall of the chassis 1. A plurality of slots 14 are equidistantly opened at the top of the positioning strip 13. A positioning component is installed on one side of the limiting baffle 10. The positioning component includes a support plate 11 fixedly installed at the top of one side of the limiting baffle 10. A plug rod 16 is slidably connected through the support plate 11. The plug rod 16 is respectively movably clamped with a plurality of slots 14. A compression spring 17 is sleeved on the plug rod 16 and is located below the support plate 11. The top and bottom ends of the compression spring 17 are respectively fixedly connected with the bottom of the support plate 11 and the plug rod 16. After the limiting baffle 10 is preset at a position, the plug rod 16 is released, and the compression spring 17 pushes the plug rod 16 into the corresponding slot 14 to realize the position limitation of the limiting baffle 10. In addition, two rubber strips 15 are symmetrically and fixedly installed on the other side of the limiting baffle 10 to provide protection when the sliding plate 3 impacts.

[0038] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and all should be covered by the protection scope of the present invention.

Claims

1. A training device for promoting the flexion and extension separation of the knee joint in hemiplegic patients, comprising a base frame (1), wherein anti-slip feet are installed at the four corners of the bottom of the base frame (1), characterized in that: The trainer also includes: A support mechanism, the support mechanism is installed in the base frame (1), a pedal (4) is installed on the support mechanism, the pedal (4) is used to position and support the patient's foot, and the support mechanism is used to support the pedal (4) in a transverse sliding manner to ensure that the patient's foot can move in a straight line when performing leg flexion and extension training; A binding mechanism, the binding mechanism is mounted on the pedal (4), and is used to fix and bind the patient's feet, so that when the patient performs leg flexion and extension training, the pedal (4) can move stably with the patient's feet to provide stable support for the patient's legs; A limiting mechanism is mounted on the bottom inner wall of the base frame (1), and the limiting mechanism is mounted on the supporting mechanism. The supporting mechanism is used to limit the movement range of the pedal (4) so ​​as to ensure that the degree of leg extension remains consistent when the patient performs flexion and extension training.

2. A training device for promoting flexion and extension separation of the knee joint in hemiplegic patients according to claim 1, characterized in that: The support mechanism comprises two slide bars (2) symmetrically fixedly mounted in a base frame (1), a same slide plate (3) being slidably sleeved on the two slide bars (2), and a pedal (4) being fixedly mounted on the top of the slide plate (3).

3. A training device for promoting flexion and extension separation of the knee joint in hemiplegic patients according to claim 2, characterized in that: The slide bar (2) is sleeved with a tension spring (12) located on one side of the slide plate (3), and the two ends of the tension spring (12) are respectively fixedly connected to an inner wall of one side of the base frame (1) and one side of the slide plate (3).

4. A training device for promoting flexion and extension separation of the knee joint in hemiplegic patients according to claim 1, characterized in that: The binding mechanism comprises a binding strap (5) fixedly mounted on one side of the pedal (4); a fixing frame (6) fixedly mounted on the other side of the pedal (4); the binding strap (5) passes through the fixing frame (6); a pressure plate (7) is slidably connected inside the fixing frame (6); a screw rod (9) is rotatably connected to one side of the pressure plate (7); a nut (8) is fixedly mounted on one side of the fixing frame (6); the screw rod (9) passes through the nut (8) and is threadedly connected to the nut (8).

5. The training device for promoting the flexion and extension separation of the knee joint in hemiplegic patients according to claim 1, characterized in that: The limiting mechanism comprises a limiting baffle (10), the limiting baffle (10) is slidably sleeved on the two sliding rods (2), the limiting baffle (10) is located on the side of the slide plate (3) away from the tension spring (12), a positioning strip (13) is fixedly installed on the bottom inner wall of the bottom frame (1), a plurality of slots (14) are evenly spaced on the top of the positioning strip (13), a positioning assembly is installed on one side of the limiting baffle (10), and the positioning assembly is movably engaged with the plurality of slots (14) respectively.

6. A training device for promoting the flexion and extension separation of the knee joint in hemiplegic patients according to claim 5, characterized in that: The positioning assembly comprises a support plate (11) fixedly mounted on the top of one side of the limit baffle (10); a plug rod (16) is slidably connected to the support plate (11); the plug rod (16) is movably engaged with a plurality of slots (14) respectively; a compression spring (17) is sleeved on the plug rod (16) and is located below the support plate (11); the top end and the bottom end of the compression spring (17) are fixedly connected to the bottom of the support plate (11) and the plug rod (16) respectively.

7. A training device for promoting the flexion and extension separation of the knee joint in hemiplegic patients according to claim 5 or 6, characterized in that: Two rubber strips (15) are symmetrically fixedly mounted on the other side of the limit baffle (10).

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