CN219848029U - Knee bending rehabilitation training device - Google Patents

Abstract

The utility model belongs to the technical field of rehabilitation medical equipment and discloses a knee joint bending rehabilitation training device, which includes a fixed plate. A seat is provided on the upper surface of the fixed plate. Two sets of bending trainers and two sets of levers are also provided on the upper surface of the fixed plate. As for the support mechanism, two sets of bending trainers are located in front of the seat, two sets of lever support mechanisms are respectively located on both sides of the seat, and at least one up and down movable support mechanism is provided between the lower surface of the seat and the upper surface of the fixed plate. The utility model is used to perform knee-flexion movements on patients, has a simple and reasonable structure, can meet the patient's knee-flexion movements during rehabilitation training, and at the same time meets the patient's muscle strength training requirements for the lower limbs.

Description

Knee bending rehabilitation training device

Technical field

The utility model belongs to the technical field of rehabilitation medical equipment, relates to rehabilitation training for patients' knee joints, and specifically relates to a knee joint bending rehabilitation training device.

Background technique

The knee joint is the most complex joint in the human body. Various injuries often occur in daily life and sports: such as knee ligament, cartilage damage and fractures. In many cases, surgical treatment is required. Severe knee joint degeneration requires Replacement surgery is performed; in order to restore joint function after surgery, a long period of rehabilitation exercise is required. If the patient does not exercise well, it may lead to a decrease in the patient's ability to take care of himself: for example, he is limited in going up and down stairs, cannot put on his own shoes, cannot sit on a commode chair, low stool, squat, etc. The above problems are also the main thorny issues that need to be faced during knee joint rehabilitation.

Usually there are two main methods to restore knee joint function: one is surgical method, which can only deal with part of the adhesion and contracture tissue. Even if the knee joint function can be restored, if restorative exercises cannot be done in time after the operation, It is very likely that adhesion will occur again, causing secondary stiffness; the second method is to use corresponding rehabilitation equipment to perform rehabilitation training on the knee joint, and apply external force to passively move the knee joint. Through long-term rehabilitation training, the shortened soft tissue can be Growth occurs due to physiological changes.

For example, Chinese utility model patent CN 214968555 U discloses a rehabilitation training device that can adjust the knee joint flexion angle, including a seat plate, the bottom of the seat plate is fixedly connected to a first electric telescopic rod, and the bottom of the first electric telescopic rod is fixedly connected to The support block has a backrest fixedly connected to the right side of the top of the seat plate, and a rotating plate movably connected to the left side of the seat plate. During training, the patient sits on the seat board and puts his legs on the turntable. The turntable is controlled to rotate to drive the patient's feet to rotate and perform rehabilitation training on the patient's knee joint. However, this device provides patients with rigid and passive rehabilitation training. During rehabilitation training, patients bend their knees frequently and for a long time, which can easily cause discomfort to the patient. In severe cases, it can even cause swelling of the patient's knee joint, causing secondary damage to the patient's knee joint. Second injury; at the same time, it cannot meet the muscle strength training requirements of the patient's lower limbs. The patient's muscle strength training is insufficient, and the patient may regress after being discharged from the hospital, and the rehabilitation training effect is not good.

Utility model content

The purpose of this utility model is to provide a knee joint bending rehabilitation training device, so as to enable patients to independently perform knee joint rehabilitation training, meet the muscle strength training requirements of the patient's lower limbs, and thereby ensure the effect of rehabilitation training.

In order to achieve the above purpose, the technical solutions adopted by this utility model are as follows:

A knee joint bending rehabilitation training device, including a fixed plate, a seat is provided on the upper surface of the fixed plate, two sets of bending trainers and two sets of lever support mechanisms are also provided on the upper surface of the fixed plate, and the two sets of bending trainers are Both are located in front of the seat, and the two sets of lever support mechanisms are located on both sides of the seat respectively;

There is at least one up and down movable support mechanism between the lower surface of the seat and the upper surface of the fixed plate. The up and down movable support mechanism includes a movable inner tube, a hollow column slidably sleeved on the movable inner pipe, and a threaded connection on the outer surface of the hollow column. The limit plate and the spring located above the limit plate and wound around the outer surface of the hollow column; one end of the movable inner tube is fixedly connected to the lower surface of the seat, and the other end of the movable inner tube is provided with a first limit protrusion along the circumferential direction. , one end of the hollow column is fixedly connected to the upper surface of the fixed plate, and the other end of the hollow column is provided with a second limiting protrusion along the circumferential direction;

Each set of the bending trainers includes an electric telescopic rod for calf fitting and an electric telescopic rod for thighs. The extended end of the electric telescopic rod for calf fitting is hinged with the fixed end of the electric telescopic rod for thigh fitting. The electric telescopic rod for calf fitting is hinged. The fixed end of the rod is hinged with the upper surface of the fixed plate, and the extended end of the thigh fitting electric telescopic rod is hinged with the seat.

As a limitation, each group of the lever support mechanism includes a first vertical pole, a second vertical pole and a horizontal bar. One end of the first vertical pole and the second vertical pole is fixedly connected to the upper surface of the fixed plate, and the other end is connected through the horizontal bar. Rod connection.

As a further limitation, the crossbar is covered with an anti-slip layer.

As a second limitation, the fixed plate also includes a foot support plate for placing the soles of the feet, and the foot support plate is provided with an anti-slip layer.

As a further limitation, the foot support plate is also provided with a limiting block.

As a third limitation, angle measuring instruments are fixed at the hinge positions of the lower leg and the electric telescopic rod and the upper leg and the electric telescopic rod.

Since the utility model adopts the above technical solution, compared with the existing technology, the technical progress achieved is:

(1) By setting up a seat, a bending trainer and a lever support mechanism, this utility model can meet the muscle strength training requirements of the patient's lower limbs and prevent the patient from insufficient muscle strength training, which may lead to regression after discharge, and the rehabilitation training effect is not good. best situation;

(2) This utility model enables patients to adaptively adjust the training intensity according to their own conditions during the training process, and the patient's safety can be ensured through the seat;

(3) This utility model is equipped with electric telescopic rods for lower legs and electric telescopic rods for thighs, which can be adjusted according to the length of the patient's legs to facilitate the patient's rehabilitation training;

(4) In this utility model, the angle measuring instrument installed at the hinge position of the electric telescopic rod where the calf fits and the electric telescopic rod where the thigh fits can facilitate the patient to know whether the knee bending action during the training process reaches the standard.

To sum up, the utility model has a simple and reasonable structure, which can satisfy the patient's knee bending movement during rehabilitation training, and at the same time meet the patient's muscle strength training requirements for the lower limbs.

Description of the drawings

Figure 1 shows a schematic structural diagram of an embodiment of the present utility model;

Figure 2 shows a schematic structural diagram of the movable inner tube, hollow column and limiting plate according to the embodiment of the present invention;

Figure 3 is a schematic structural diagram of the limiting plate according to the embodiment of the present invention.

In the picture: 1. Fixed plate; 2. Seat; 3. Movable inner tube; 4. Hollow column; 5. Limiting plate; 6. Spring; 7. First limiting protrusion; 8. Second limiting protrusion 9. The calf fits the electric telescopic pole; 10. The thigh fits the electric telescopic pole; 11. The first vertical pole; 12. The second vertical pole; 13. Cross bar; 14. Foot support plate; 15. Limiting block .

Detailed ways

In order to better explain the present utility model and facilitate understanding, the present utility model will be described in detail through specific implementation modes in conjunction with the accompanying drawings.

Embodiment A knee joint bending rehabilitation training device

As shown in Figure 1, this embodiment is a knee joint bending rehabilitation training device, which includes a fixed plate 1. A seat 2 is provided on the upper surface of the fixed plate 1. Two sets of bending training devices and two sets of bending training devices are also provided on the upper surface of the fixed plate 1. A set of lever support mechanisms, two sets of bending trainers are located in front of the seat 2 (the front refers to the direction of the single arrow in Figure 1), and two sets of lever support mechanisms are located on both sides of the seat 2 (both sides refer to the direction of the single arrow in Figure 1) direction of the double arrow). During rehabilitation training, the seat 2 is used to protect the patient, support the patient, and protect the patient at the same time.

There is an up and down movable support mechanism between the lower surface of the seat 2 and the upper surface of the fixed plate 1. The up and down movable support mechanism includes a movable inner tube 3, a hollow column 4 slidably sleeved on the movable inner tube 3, and a hollow column 4 outside the hollow column 4. The limit plate 5 connected by surface threads and the spring 6 located above the limit plate 5 and wound around the outer surface of the hollow column 4; one end of the movable inner tube 3 is fixedly connected to the lower surface of the seat 2, and the other end of the movable inner tube 3 is connected along the A first limiting protrusion 7 is provided in the circumferential direction. One end of the hollow column 4 is fixedly connected to the upper surface of the fixed plate 1. The other end of the hollow column 4 is provided with a second limiting protrusion 8 along the circumferential direction, as shown in Figure 2. Among them, by setting the first limit protrusion 7 and the second limit protrusion 8, the movable inner tube 3 can be prevented from breaking away from the hollow column 4. The outer surface of the hollow column 4 is provided with external threads, and the limit plate 5 is provided with internal threads. ,As shown in Figure 3.

Each set of bending training devices includes a calf-fitting electric telescopic rod 9 and a thigh-fitting electric telescopic rod 10. The extension end of the calf-fitting electric telescopic rod 9 is hinged with the fixed end of the thigh-fitting electric telescopic rod 10. The calf-fitting electric telescopic rod 10 is hinged. The fixed end of the electric telescopic rod 9 is hinged with the upper surface of the fixed plate 1, and the thigh is hinged with the extended end of the electric telescopic rod 10 and the seat 2. An angle measuring instrument is fixed at the hinge position of the calf fitting electric telescopic rod 9 and the thigh fitting electric telescopic rod 10. Among them, the extended end of the thigh-fitting electric telescopic rod 10 is hinged with the front side of the seat plate of the seat 2 . The calf-fitting electric telescopic rod 9 is used to fit the calf, and the thigh-fitting electric telescopic rod 10 is used to fit the thigh. The fixed end of the calf-fitting electric telescopic rod 9 is hinged to the fixed plate 1 so that the patient can sit conveniently. Preferably on seat 2. The fixed end of the calf fitting the electric telescopic rod 9 and the fixed end of the thigh fitting the electric telescopic rod 10 refer to the other end that is different from the extended end. The models of the calf-fitting electric telescopic rod 9 and the thigh-fitting electric telescopic rod 10 are both YMD-602, and are controlled by a controller. The angle measuring instrument is not shown in the drawings of this embodiment. The angle measuring instrument is an existing structure, such as a syntek electronic digital display angle ruler.

Each set of lever support mechanisms includes a vertical first pole 11, a vertical second pole 12 and a horizontal pole 13. One end of the first pole 11 and the second pole 12 is fixed to the upper surface of the fixed plate 1 The other ends are connected through the cross bar 13, and the cross bar 13 is provided with an anti-slip layer.

In this implementation, the fixed plate 1 also includes a foot support plate 14 for placing the soles of the feet. The foot support plate 14 is provided with an anti-slip layer. Furthermore, the foot support plate 14 can also be provided with a limiter for restricting the forward sliding of the soles of the feet. Block 15, when the patient stands on the foot support plate 14 for training, the sole of the foot is against the limit block 15, and the effect of fixing the foot is better; the foot support plate 14 is arranged on the two lower legs to fit the fixation of the electric telescopic rod 9 The end is in front of the hinged position of the upper surface of the fixed plate 1.

Multiple up and down movable support mechanisms can be provided as needed to further support the seat 2 .

The usage process of this embodiment is:

When the patient needs to do rehabilitation training, he first stands on the foot support plate 14 and against the limit block 15, with the soles of his feet in front of the fixed ends of the two lower legs fitting the electric telescopic rod 9, and adjusts the lower legs to fit the electric telescopic rod 9 length, ensure that the patient's knee joint is exactly at the hinge position of the calf fitting electric telescopic rod 9 and the thigh fitting electric telescopic rod 10, and adjust the length of the thigh fitting electric telescopic rod 10 so that the patient sits on the seat 2 .

After the above preparations are completed, the patient keeps the soles of his feet still, holds the crossbars 13 on both sides of the seat 2 with both hands, and applies force to get up. At this time, the spring 6 also exerts an upward force on the seat 2, further making it easier for the patient to get up. , then the patient continues to hold the crossbar 13 with both hands, bends both legs, and lowers the body. After sitting on the seat 2, the seat 2 continues to move downward through the compression spring 6, further bending the legs, and the process can be repeated The knee bending movement not only realizes the rehabilitation training of the knee joint, but also meets the muscle strength training requirements of the patient's lower limbs, preventing the patient from insufficient muscle strength training, which may lead to regression after discharge, and poor rehabilitation training results.

During the training process, the position of the limit plate 5 on the outer surface of the hollow column 4 can be adjusted. According to the elastic force of the spring 6 and the patient's weight, the lowest position of the patient when sitting on the seat 2 is determined to control the angle of the knee. The generally set knee flexion angle is 120°.

Therefore, the structure of this embodiment can satisfy the patient's knee bending movement during rehabilitation training, and at the same time meet the patient's muscle strength training requirements for the lower limbs. Compared with the most commonly used passive exercise instrument for knee joint flexion and extension in clinical practice: the joint mobilization meter, that is, the CPM machine, the cost of this embodiment is lower. The CPM machine used in hospitals is generally more expensive, about 4,000-5,000 yuan. In addition, compared with patients who can only perform knee flexion and extension exercises with the help of themselves or their family members after discharge, if the intensity of the flexion and extension exercises is too small, the exercise will not be effective, and if the intensity is too large, the patient's knee joint will swell and the patient will The pain is unbearable, but this embodiment is actively controlled by the patient through its own gravity, which saves effort and can achieve the effect. At the same time, the exercise angle can be observed at any time, which also ensures the patient's safety and is safer than the patient's own squatting exercise.

It should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, for those skilled in the art, it The technical solutions described in the above embodiments can still be modified, or some of the technical features can be equivalently replaced. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (6)

1. A knee joint bending rehabilitation training device, including a fixed plate, a seat is provided on the upper surface of the fixed plate, and it is characterized in that two sets of bending training devices and two sets of lever support mechanisms are provided on the upper surface of the fixed plate. The bending trainers in one group are located in front of the seat, and the lever support mechanisms in the two groups are located on both sides of the seat respectively; There is at least one up and down movable support mechanism between the lower surface of the seat and the upper surface of the fixed plate. The up and down movable support mechanism includes a movable inner tube, a hollow column slidably sleeved on the movable inner pipe, and a threaded connection on the outer surface of the hollow column. The limit plate and the spring located above the limit plate and wound around the outer surface of the hollow column; one end of the movable inner tube is fixedly connected to the lower surface of the seat, and the other end of the movable inner tube is provided with a first limit protrusion along the circumferential direction. , one end of the hollow column is fixedly connected to the upper surface of the fixed plate, and the other end of the hollow column is provided with a second limiting protrusion along the circumferential direction; Each set of the bending trainers includes an electric telescopic rod for calf fitting and an electric telescopic rod for thighs. The extended end of the electric telescopic rod for calf fitting is hinged with the fixed end of the electric telescopic rod for thigh fitting. The electric telescopic rod for calf fitting is hinged. The fixed end of the rod is hinged with the upper surface of the fixed plate, and the extended end of the thigh fitting electric telescopic rod is hinged with the seat. 2. The knee joint bending rehabilitation training device according to claim 1, characterized in that each group of the lever support mechanisms includes a first upright pole, a second upright pole and a cross bar, and the first upright pole and the second upright pole One end of the rod is fixedly connected to the upper surface of the fixed plate, and the other end is connected through a horizontal rod. 3. The knee joint bending rehabilitation training device according to claim 2, characterized in that the crossbar is covered with an anti-slip layer. 4. The knee joint bending rehabilitation training device according to claim 1, characterized in that the fixed plate further includes a foot support plate for placing the sole of the foot, and the foot support plate is provided with an anti-slip layer. 5. The knee joint bending rehabilitation training device according to claim 4, characterized in that a limiting block is further provided on the foot support board. 6. The knee joint bending rehabilitation training device according to claim 1, characterized in that an angle measuring instrument is fixed at the hinged position of the electric telescopic rod where the lower leg is attached and the electric telescopic rod where the thigh is attached.