Knee joint active training instrument

Abstract

The utility model discloses a knee joint active training instrument, which comprises a scooter and a fixed foot pad arranged on the scooter, the scooter comprises a scooter body, the bottom of the scooter body is provided with a control module and two groups of directional pulley blocks, and the control module comprises a control unit, a speed measuring unit and an automatic braking unit; the foot of a patient is fixed through the fixing foot pad, and the scooter is used for assisting the foot to move back and forth, so that the patient can autonomously carry out knee bending and stretching training, and knee joint recovery is facilitated; by arranging the control module and the brake assembly, when the speed measuring unit detects that the speed is too high, the automatic brake unit brakes the vehicle body through the brake assembly, and the risk that the vehicle body is too high in moving speed and prone to falling down is reduced. In addition, a thigh supporting frame is further arranged, the thigh supporting frame can keep the thigh posture stable for part of patients with poor thigh supporting force, and effective development of knee bending and stretching training is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of medical rehabilitation equipment, and more specifically, particularly to an active knee joint training device. Background Art

[0002] Hemiplegia, also known as hemiplegia, refers to movement disorders of the upper and lower limbs, facial muscles and lower tongue muscles on the same side. It is a common symptom of acute cerebrovascular disease. Although patients with mild hemiplegia can still move, they often walk with their upper limbs flexed and lower limbs straight. The paralyzed lower limbs make a half circle with each step. This special walking posture is called hemiplegic gait. Knee joint control disorder is one of the main factors causing abnormal gait. The knee joint has poor load-bearing response and reduced support stability, which slows down the walking speed and limits the patient's walking function. Therefore, there is an urgent need for a device that can perform rehabilitation training on the knee joint, so that patients can achieve the effect of preventing and treating complications, reducing sequelae and promoting functional recovery through exercise therapy. Utility Model Content

[0003] The utility model provides a knee joint active training device to solve the problems raised in the above background technology. To achieve the above purpose, the utility model provides the following technical solutions: an active knee joint training device, including a pulley and a fixed foot pad installed on the pulley;

[0004] The pulley vehicle comprises a vehicle body, a control module and two directional pulley groups are arranged at the bottom of the vehicle body; the two directional pulley groups are arranged at the front end and the rear end of the bottom of the vehicle body respectively, and a brake assembly is arranged on one of the directional pulley groups; the control module comprises a control unit, a speed measuring unit and an automatic brake unit, the speed measuring unit and the automatic brake unit are respectively connected to the control unit, and the brake assembly is connected to the automatic brake unit;

[0005] The speed measuring unit is used to detect the speed information of the vehicle body and generate a speed signal to send to the control unit; the control unit is used to receive the speed signal, and when the speed of the vehicle body exceeds the action value, the control unit sends a brake signal to the automatic brake unit; the automatic brake unit receives the interception signal and acts to drive the brake assembly to move;

[0006] The fixed foot pad is provided with a fixing belt, and the patient's foot is fixed by the fixing belt.

[0007] Preferably, the fixed foot pad includes a supporting foot pad, and the supporting foot pad includes a foot pad plate and a side guard, and the foot pad plate is provided with a raised portion and a recessed portion that cooperate with the arch of a human foot; the side guard is arranged around the periphery of the foot pad to position the patient's foot; the fixing belt includes two groups of fixing Velcro, and the two ends of the fixing Velcro are respectively connected to the two sides of the side guard.

[0008] Preferably, the fixed foot pad includes a foot pad bracket, the foot pad bracket is fixedly mounted on the vehicle body, and a foot cover is provided on the foot pad bracket; the foot cover is made of cloth, and its shape fits the shape of the sole of the human foot, and is used to fit and support the human foot; the fixing belt is an elastic belt with a plastic buckle, and there are multiple fixing belts, which are respectively installed on the foot cover.

[0009] Preferably, a display screen is provided at a corner of the front end of the vehicle body, and the display screen is connected to the control unit and is used to display the vehicle body speed information detected by the speed measuring unit.

[0010] Preferably, the speed measuring unit is a speed sensor.

[0011] Preferably, the automatic brake unit comprises a cylinder and a connecting rod mechanism, the cylinder body of the cylinder is connected to the vehicle body, the piston rod thereof is connected to the connecting rod mechanism, and the connecting rod mechanism is connected to the brake assembly.

[0012] Preferably, an alarm device connected to the control unit is further included, and the alarm device is one or more of a voice alarm, a buzzer alarm, or a flash alarm.

[0013] Preferably, a thigh support frame is also included.

[0014] Preferably, the thigh support frame includes a support body, a soft pad is provided on the top of the support body, and the middle part of the soft pad is an arc-shaped concave structure; and a plurality of groups of Velcro fixing straps are provided on the soft pad.

[0015] Preferably, the bracket body is an adjustable bracket with adjustable height.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model provides an active knee joint training device, which fixes the patient's feet by fixing the foot pads, and then uses a pulley to assist the feet to move back and forth, so that the patient can independently perform knee flexion and extension training back and forth multiple times, which is helpful for the recovery of the knee joint; by setting a control module and a brake assembly, when the speed measuring unit detects that the speed is too fast, the automatic brake unit stops the vehicle body through the brake assembly, which greatly reduces the risk of the vehicle body moving too fast and easily falling due to loss of control or unstable posture. In addition, the utility model is also provided with a thigh support frame. For some patients with poor thigh support, the thigh support frame can keep the thigh posture stable, which is helpful for the effective implementation of knee flexion and extension training. The utility model has a reasonable design and a simple structure, can provide active knee joint training for hemiplegic patients, and helps to promote the recovery of leg function. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural diagram of the active knee joint training device according to an embodiment of the utility model;

[0018] Figure 2 A top view of the active knee joint training device according to an embodiment of the utility model;

[0019] Figure 3 It is a side view of the active knee joint training device according to an embodiment of the utility model;

[0020] Figure 4 It is a structural diagram of another embodiment of the active knee joint training device of the utility model;

[0021] Figure 5 A side view of another embodiment of the active knee joint training device of the utility model;

[0022] exist Figures 1 to 5 In the figure, the corresponding relationship between the names of the components and the numbers of the drawings is as follows:

[0023] 1--pulley vehicle, 11--vehicle body, 12--directional pulley block, 13--control module, 14--display screen, 2--fixed foot pad, 21--fixing belt, 22--foot pad, 23--side stop, 3--thigh support frame, 31--bracket body, 32--soft pad, 321--arc-shaped concave structure, 33--Velcro fixing belt. DETAILED DESCRIPTION

[0024] The following is a further detailed description of the implementation of the present utility model in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0025] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] Please refer to Figures 1 to 5 The utility model provides a knee joint active training device, comprising a pulley vehicle 1 and a fixed foot pad 2 installed on the pulley vehicle 1; the pulley vehicle 1 comprises a vehicle body 11, and a control module 13 and two sets of directional pulley groups 12 are arranged at the bottom of the vehicle body; the two sets of directional pulley groups 12 are respectively arranged at the front end and the rear end of the bottom of the vehicle body, and a brake assembly is arranged on one set of directional pulley groups 12; the control module 13 comprises a control unit, a speed measuring unit and an automatic braking unit, the speed measuring unit and the automatic braking unit are respectively connected to the control unit, and the brake assembly is connected to the automatic braking unit; the speed measuring unit is used to detect the speed information of the vehicle body 11, and generate a speed signal to send to the control unit; the control unit is used to receive the speed signal, and when the speed of the vehicle body 11 exceeds the action value, the control unit sends a brake signal to the automatic braking unit; the automatic braking unit receives the interception signal and acts to drive the brake assembly to move; a fixing belt 21 is provided on the fixed foot pad 2, and the patient's foot is fixed by the fixing belt 21.

[0028] In the embodiments of the present invention, please refer to Figures 1 to 3 A fixed foot pad 2 is installed on the pulley 1, and the fixed foot pad 2 is used to fix the patient's foot so that the patient's foot and the pulley 1 maintain a relatively stable posture. When the patient uses the training device for rehabilitation training, he or she practices in a sitting position. After the patient sits down, the foot is placed on the fixed foot pad 2. When the patient's foot exerts force, the pulley 1 can be pushed to slide back and forth on the ground. In order to realize the movement of the pulley 1 in a certain direction, the pulley block used in this embodiment is a directional pulley block 12. Compared with the common universal wheel, the sliding direction of the directional pulley block 12 is fixed, which can avoid the deformation of the training movement and improve the training quality.

[0029] When the patient is training, the patient may not have enough control over the foot or other parts of the body may shake, causing instability under the feet. The patient may be driven forward by the pulley 1, resulting in thigh strain or even falling. In order to avoid such situations as much as possible, the present embodiment sets an automatic braking function on the pulley 1. In order to achieve this function, the present embodiment cooperates through a control unit, a speed measuring unit, an automatic braking unit and a brake assembly. The speed measuring unit is used to detect the sliding speed of the pulley 1. Once it is detected that the speed of the pulley 1 changes significantly and the pulley 1 suddenly accelerates, it indicates that there may be a greater risk. At this time, the speed measuring unit sends a signal to the control unit. After receiving the speed signal, the control unit sends a braking signal to the automatic braking unit. The automatic braking unit starts and drives the brake assembly to brake quickly, so that the pulley 1 can stop quickly to help the patient stabilize the center of gravity and reduce the occurrence of slips and falls.

[0030] Furthermore, a resistance device with adjustable damping may be provided in the pulley 1, and the resistance of the pulley 1 when moving forward or backward may be controlled by the cooperation between the resistance device and the pulley block, so as to adapt to the training requirements of patients at different rehabilitation stages.

[0031] Preferably, the fixed foot pad 2 includes a supporting foot pad, and the supporting foot pad includes a foot pad plate 22 and a side guard 23. The foot pad plate 22 is provided with a raised portion and a recessed portion that match the human arch; the side guard 23 is arranged around the periphery of the foot pad 22 to position the patient's foot; the fixing belt 21 includes two sets of fixed Velcro, and the two ends of the fixed Velcro are respectively connected to the two sides of the side guard 23. In this embodiment, the foot pad 22 is provided with raised portions and recessed portions with different heights to adapt to the shape of the human arch and improve comfort. The side guard 23 can help the foot to be quickly positioned and placed on the foot pad 22, and then the foot is fixed by fixing the Velcro.

[0032] Preferably, the fixed foot pad 2 includes a foot pad bracket, the foot pad bracket is fixedly mounted on the vehicle body 11, and a foot cover is arranged on the foot pad bracket; the foot cover is made of cloth, and its shape fits the body shape of the sole of the human foot, and is used to fit and support the human foot; the fixing belt 21 is an elastic belt with a plastic buckle, and there are multiple fixing belts 21, and the multiple fixing belts 21 are respectively installed on the foot cover. In order to further improve the foot fixation effect and improve the comfort, the present embodiment adopts a foot cover to support the patient's foot. Specifically, the foot cover is an L-shaped structure adapted to the sole of the human foot, and can wrap the foot well. The patient's foot is placed on the foot cover, and then fixed by an elastic belt with a plastic buckle. The overall wrapping is strong, the force is concentrated, and it is convenient for the patient to use. Due to the special shape of the foot cover, in order to fix the foot cover, this embodiment uses a foot pad bracket to install the foot cover. The foot pad bracket can be composed of multiple vertical support rods, which support the foot cover and keep the foot cover at a certain inclination angle so that the patient's foot can be easily put into the foot cover.

[0033] Preferably, a display screen 14 is provided at the corner of the front end of the vehicle body 11, and the display screen 14 is connected to the control unit and is used to display the speed information of the vehicle body 11 detected by the speed measuring unit. In this embodiment, by providing the display screen 14, the current running speed of the vehicle body 11 can be displayed to remind the patient of the speed of movement, and the patient can reasonably increase or decrease the speed according to his or her own conditions. In this embodiment, the display screen 14 is provided at the corner of the front end of the vehicle body 11, which is more in line with the patient's habit of looking down at the feet during rehabilitation treatment, so that the patient can intuitively understand the speed information.

[0034] Preferably, the speed measuring unit is a speed sensor.

[0035] Preferably, the automatic brake unit includes a cylinder and a connecting rod mechanism, the cylinder body of the cylinder is connected to the vehicle body 11, the piston rod thereof is connected to the connecting rod mechanism, and the connecting rod mechanism is connected to the brake assembly. Through the above structural design, when the control unit sends a brake signal, the cylinder starts and drives the connecting rod mechanism, the connecting rod mechanism acts on the brake assembly after a series of transmissions, and the brake assembly acts on the corresponding directional pulley block 12, so that the pulley block stops rotating, and then the entire pulley vehicle 1 stops.

[0036] Preferably, an alarm device connected to the control unit is also included, and the alarm device is one or more of a voice alarm, a buzzer alarm, or a flash alarm. By setting the alarm device, when the speed of the pulley 1 is too fast or too slow, the patient can be reminded by voice, flash signal or buzzer.

[0037] Preferably, a thigh support frame 3 is also included. Figure 4 and Figure 5 , since it is generally difficult for hemiplegic patients to recover good leg motor function in a short period of time, their control over the thigh may be relatively weak, so the thigh may shake during rehabilitation training, resulting in deformed movements, and even danger. To this end, the present embodiment is provided with a thigh support frame 3, which supports the leg and fixes the thigh at the same time, thereby reducing the shaking of the thigh during rehabilitation training and improving the training quality and rehabilitation effect.

[0038] Preferably, the thigh support frame 3 includes a support body 31, a soft pad 32 is provided on the top of the support body 31, and the middle part of the soft pad 32 is an arc-shaped concave structure 321; the soft pad 32 is provided with multiple groups of Velcro fixing belts 3321. In this embodiment, a soft pad 32 that matches the shape of the thigh is provided on the support body 31, and the arc-shaped concave structure 321 on the soft pad 32 is convenient for supporting the thigh and reducing the shaking of the thigh to the sides. At the same time, in order to further fix the thigh, this embodiment is also provided with multiple groups of Velcro fixing belts 3321, which are used to bind the thigh by the Velcro fixing belts 3321, which is easy to disassemble and has a good fixing effect.

[0039] Preferably, the support body 31 is a height-adjustable adjustable support. In this embodiment, the support body 31 is a height-adjustable adjustable support, and the height of the adjustable support can be adjusted according to the body characteristics of different patients such as height and leg length, which can adapt to more patients and help improve the comfort of use and the stability of training.

[0040] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model provides an active knee joint training device, which fixes the patient's feet by fixing the foot pads, and then uses a pulley to assist the feet to move back and forth, so that the patient can independently perform knee flexion and extension training back and forth multiple times, which is helpful for the recovery of the knee joint; by setting a control module and a brake assembly, when the speed measuring unit detects that the speed is too fast, the automatic brake unit stops the vehicle body through the brake assembly, which greatly reduces the risk of the vehicle body moving too fast and easily falling due to loss of control or unstable posture. In addition, the utility model is also provided with a thigh support frame. For some patients with poor thigh support, the thigh support frame can keep the thigh posture stable, which is helpful for the effective implementation of knee flexion and extension training. The utility model has a reasonable design and a simple structure, can provide active knee joint training for hemiplegic patients, and helps to promote the recovery of leg function.

[0041] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A knee joint active training device, characterized in that: It comprises a pulley (1) and a fixed foot pad (2) installed on the pulley; The pulley vehicle comprises a vehicle body (11), the bottom of which is provided with a control module (13) and two sets of directional pulley blocks (12); the two sets of directional pulley blocks are respectively arranged at the front end and the rear end of the bottom of the vehicle body, and one set of directional pulley blocks is provided with a brake assembly; the control module comprises a control unit, a speed measuring unit and an automatic brake unit, the speed measuring unit and the automatic brake unit are respectively connected to the control unit, and the brake assembly is connected to the automatic brake unit; The speed measuring unit is used to detect the speed information of the vehicle body and generate a speed signal to send to the control unit; the control unit is used to receive the speed signal, and when the speed of the vehicle body exceeds the action value, the control unit sends a brake signal to the automatic brake unit; the automatic brake unit receives the interception signal and acts to drive the brake assembly to move; The fixed foot pad is provided with a fixing belt (21), and the patient's foot is fixed by the fixing belt.

2. The active knee joint training device according to claim 1, characterized in that: The fixed foot pad comprises a supporting foot pad, the supporting foot pad comprises a foot pad plate (22) and a side guard (23), the foot pad plate is provided with a raised portion and a recessed portion matching with the arch of a human foot; the side guard is arranged around the periphery of the foot pad and is used to position the patient's foot; the fixing belt comprises two groups of fixing Velcro strips, the two ends of the fixing Velcro strips are respectively connected to the two sides of the side guard.

3. The active knee joint training device according to claim 1, characterized in that: The fixed foot pad includes a foot pad bracket, which is fixedly installed on the vehicle body, and a foot cover is arranged on the foot pad bracket; the foot cover is made of cloth, and its shape fits the body shape of the sole of the human foot, and is used to fit and support the human foot; the fixing belt is an elastic belt with a plastic buckle, and there are multiple fixing belts, which are respectively installed on the foot cover.

4. The active knee joint training device according to claim 1, characterized in that: A display screen (14) is provided at the front corner of the vehicle body, and the display screen is connected to the control unit and is used to display vehicle body speed information detected by the speed measuring unit.

5. The active knee joint training device according to claim 1, characterized in that: The speed measuring unit is a speed sensor.

6. The active knee joint training device according to claim 5, characterized in that: The automatic brake unit comprises a cylinder and a connecting rod mechanism, the cylinder body of the cylinder is connected to the vehicle body, the piston rod of the cylinder is connected to the connecting rod mechanism, and the connecting rod mechanism is connected to the brake assembly.

7. The active knee joint training device according to claim 1, characterized in that: It also includes an alarm device connected to the control unit, and the alarm device is one or more of a voice alarm, a buzzer alarm, or a flash alarm.

8. The active knee joint training device according to any one of claims 1 to 7, characterized in that: Also included is a thigh support frame (3).

9. The knee joint active training device according to claim 8, characterized in that: The thigh support frame comprises a support body (31), a soft pad (32) is provided on the top of the support body, the middle of the soft pad is an arc-shaped concave structure (321), and a plurality of groups of Velcro fixing straps (33) are provided on the soft pad.

10. The active knee joint training device according to claim 9, characterized in that: The support body is an adjustable support with adjustable height.

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