CN108392791A - A kind of device for rehabilitation for the training of knee articulation degree - Google Patents

Abstract

The invention belongs to medical recovering aid equipment technical fields, and in particular to a kind of device for rehabilitation for the training of knee articulation degree can be used for the postoperative knee articulation degree rehabilitation training of knee prosthesis.Device for rehabilitation of the present invention; by device for rehabilitation, this body support frame so that continuous cambered surface arrangement is presented between each pulley; ensure in patient motion to knee joint extreme position; still at least two groups of pulleys are touched with ground; utilize the difference in height between pulley, it is ensured that the resistanceless motion of pulley, therefore; be not in patient when reaching maximum knee joint and stretching angle and/or knee flexion angles, patient because control it is bad or take exercise it is improper caused by joint injury；Moreover, because patient is not necessarily to Overexertion, it can also extend the rehabilitation training time of patient, further strengthen knee articulation degree practice effect.

Description

Rehabilitation device for training the range of motion of the knee joint

technical field

The invention belongs to the technical field of medical auxiliary rehabilitation equipment, and in particular relates to a rehabilitation device for knee joint activity training, which can be used for knee joint activity rehabilitation training after knee joint replacement.

Background technique

Total knee arthroplasty is the most important treatment for end-stage knee osteoarthritis, which can significantly relieve pain, improve knee joint function, and significantly improve the quality of life. However, the surgical trauma caused by total knee arthroplasty will lead to inflammatory reactions in the knee joint cavity and soft tissue around the wound, and then cause pain and swelling, which will affect the early functional exercise process of patients after surgery, and directly affect the long-term knee joint. function and quality of life of patients. This requires patients to perform active and effective knee joint functional exercises as soon as possible after surgery to avoid knee joint adhesion problems. Therefore, patients need to perform active functional exercises as soon as possible while overcoming pain, swelling and other discomforts after surgery to ensure the recovery of the knee joint after surgery.

At present, rehabilitation after knee replacement usually uses CPM to assist the passive movement of the knee joint to restore the range of motion of the knee joint. Although CPM can achieve a certain degree of knee flexion accuracy, it provides patients with rigid and passive rehabilitation exercises, which usually make patients feel severe pain, or cause secondary damage to the patient's knee joint; at the same time, the use of equipment The passive exercise usually cannot meet the muscle strength training requirements of the limbs of patients in the later stage of rehabilitation, and it is not easy to recover.

Many rehabilitation devices have been developed in the prior art to complete the knee joint range of motion training for patients after knee replacement surgery, but most rehabilitation equipment occupies a large area and can only perform rehabilitation training in designated areas. Joint range of motion rehabilitation training is not appropriate.

At present, clinically, the most common method for the rehabilitation training of the early knee joint range of motion of postoperative patients is to perform training while the patient is sitting. Usually the patient sits on the edge of the bed, with the legs in a natural drooping state. The patient uses the quadriceps to straighten the knee joint as much as possible to perform the exercise of knee joint extension, and uses the quadriceps to bend as much as possible. Knee joint for knee flexion exercise. However, on the one hand, patients are prone to pain and affect active force training; at the same time, due to the limitation of body position, the range of motion of the patient's knee joint can usually only reach about 70°, which makes it difficult to ensure the effective rehabilitation of patients after surgery.

Contents of the invention

Therefore, the technical problem to be solved by the present invention is to provide a rehabilitation device for knee joint range of motion training to solve the problem in the prior art that the intensity and effect of postoperative knee joint range of motion training for patients are not ideal.

In order to solve the above-mentioned technical problems, a rehabilitation device for knee joint activity training according to the present invention includes a rehabilitation device body bracket, the top of which is in contact with the patient's foot and passes through the set fixing assembly To achieve the fixation with the patient's foot, the bottom end of the rehabilitation device body bracket is provided with a sliding assembly, and each of the sliding assemblies is arranged continuously in an arc shape along the bottom end of the rehabilitation device body bracket, so as to ensure that the rehabilitation device is When moving to the limit position along the patient's leg, at least two groups of the sliding components are in contact with the ground, so that the rehabilitation device body can realize continuous non-resistance sliding of the patient's leg relative to the ground; A first fixing strap and a second fixing strap arranged transversely in the direction of the foot.

The first fixing belt is arranged on the body bracket of the rehabilitation device corresponding to the position of the patient's toe, and the second fixing belt is arranged on the body bracket of the rehabilitation device corresponding to the highest position of the instep of the patient.

The side of the rehabilitator body bracket is also provided with an adjustment assembly, the adjustment assembly is connected with the second fixing belt, and is used to control the sliding of the second fixing belt along the length direction of the rehabilitator body bracket, To achieve adaptive immobilization of patients with different foot sizes.

The adjustment assembly includes a sliding groove arranged along the length direction of the rehabilitation device body bracket and at least two sets of fixing buttons arranged on the side close to the patient's foot parallel to the sliding groove. A sliding block connected to the second fixing belt is clamped, and the second fixing belt is limitedly slid along the sliding groove, and passes through a fixing hole provided at a corresponding position on the second fixing belt Fastened with the fixed button and fixed to the required position.

The adjustment assembly also includes fixing buckles arranged on the side of the sliding groove away from the patient's feet and respectively corresponding to the fixing buttons. The second fixing belt is used for limiting and fixing.

The sliding assembly is a pulley.

The pulley is connected with the frame of the rehabilitator body through a connecting rod.

The longitudinal section of the rehabilitation device body bracket along the moving direction of the patient's legs is boat-shaped or arc-shaped.

The transverse section of the rehabilitation device body bracket along the moving direction of the patient's legs is square, rectangular or arc-shaped with two pointed ends.

The first fixing belt and/or the second fixing belt are independently adjustable buckles, hook and loop or straps.

The rehabilitation device used for knee joint activity training in the present invention is optimized based on the structure of the "pulley shoes" in the prior art. After the patient puts on the rehabilitation device, he uses the quadriceps muscle to drive the rehabilitation. The device moves to drive the knee joint to perform straightening activities. During the exercise, the rehabilitation device is driven by the pulley, which can save a lot of physical exertion for the patient while ensuring the degree of motion as much as possible. With inertial assistance, patients can complete knee joint mobility exercises with as little effort as possible, avoiding the hidden danger of postoperative tissue adhesion, and can achieve a powerful combination of active and passive movements. Moreover, the rehabilitation device occupies a small area, and the patient can perform exercise exercises at the bedside without going to a specific place for rehabilitation training, which is convenient for the daily rehabilitation of the patient, and also helps to strengthen the frequency and effect of training.

The rehabilitator of the present invention is optimized based on the structure of the "pulley shoes" in the prior art. Through the support of the rehabilitator body, the pulleys are arranged in a continuous arc to ensure that when the patient moves to the limit position of the knee joint, There are still at least two sets of pulleys in contact with the ground, and the height difference between the pulleys is used to ensure the non-resistance movement of the pulleys. Therefore, when the patient reaches the maximum knee extension angle and/or knee bend angle, The patient has joint damage due to poor control or improper exercise; moreover, since the patient does not need to exert excessive force, it can also prolong the patient's rehabilitation exercise time and further enhance the effect of the knee joint range of motion exercise.

The first fixing belt and the second fixing belt provided by the rehabilitation device of the present invention further strengthen the connection and fixation between the patient's foot and the rehabilitation device. The patient can directly wear his own shoes for exercise, and only needs to put the first fixing belt and the second fixing belt are respectively fixed to the toes and the highest position of the instep to ensure the stability of the fixation; at the same time, in order to make the rehabilitation device of the present invention more suitable for patients with different foot sizes, the rehabilitation device of the present invention In the device, the first fixing belt is fixed on the support of the rehabilitation device body, and the position of the second fixing belt is adjusted by the adjustment component, so that the second fixing belt can be along the rehabilitation device body The lateral side of the bracket is limited in the longitudinal direction, so that the second fixing belt can be adaptively fixed at the highest position of the instep of patients with different foot sizes, which is convenient for stable fixing.

The adjustment assembly of the rehabilitator of the present invention includes a sliding groove arranged on the side of the body bracket of the rehabilitator, and at least two sets of fixing buttons arranged on the side close to the patient's foot parallel to the sliding groove, the sliding A sliding block connected to the second fixing band is clamped in the groove, and the second fixing band can limitly slide along the sliding groove, and is set at a corresponding position on the second fixing band. The fixing hole at the position is buckled with the fixing button and fixed to the desired position, and the fixing button is set on the side of the sliding groove away from the patient's foot and corresponding to the fixing button respectively to realize the adjustment of the position. The second fixing belt is fixed in a limited position, which further ensures the adjustability and stability of the second fixing belt.

Description of drawings

In order to make the content of the present invention more easily understood, the present invention will be further described in detail below according to the specific embodiments of the present invention and in conjunction with the accompanying drawings, wherein,

Fig. 1 is the structural representation of rehabilitation device described in the present invention;

The reference signs in the figure are represented as: 1-rehabilitation device body bracket, 2-pulley, 3-first fixing belt, 4-second fixing belt, 5-fixing buckle, 6-connecting rod, 7-sliding groove, 8 -fixed button, 9-fixed hole, 10-sliding block.

Detailed ways

As shown in Figure 1, the rehabilitation device used for knee joint activity training according to the present invention includes a rehabilitation device body bracket 1, the top of which is in contact with the patient's foot, and is fixed by setting The assembly realizes the fixation with the patient's foot; the bottom end of the rehabilitation device body support 1 is provided with a sliding assembly, and each of the sliding assemblies is arranged continuously, and each of the sliding assemblies is along the bottom end of the rehabilitation device body support 1 Arranged continuously in an arc shape, it is ensured that when the rehabilitation device moves to the limit position along the patient's leg, at least two groups of the sliding components are in contact with the ground, so that the rehabilitation device body 1 realizes the patient's leg relative to the ground. Continuous sliding without resistance.

As shown in Figure 1, in the rehabilitation device used for knee joint activity training according to the present invention, the fixing assembly includes a first fixing belt 3 and a second fixing belt 4 arranged transversely along the direction of the patient's foot, For lateral immobilization of the patient's foot. In the rehabilitator of the present invention, the patient can directly wear his own shoes, directly step on the top position of the rehabilitator body 1, and connect and fix the first fixing belt 3 and the second fixing belt 4 to The patient's feet (connected shoes) are fixed with the rehabilitation device body support 1 .

The structure shown in Figure 1, the sliding assembly of the rehabilitation device body support 1 in the present invention is preferably set as a pulley 2, and the pulleys 2 are arranged in groups of two, along the side of the rehabilitation device body support 1 Symmetrical setup on both sides. The pulley 2 can be directly fixed to the bottom side of the rehabilitation device body bracket 1 through a connecting piece, or can be connected to the bottom surface of the rehabilitation device body bracket 1 through a connecting rod 6 .

In the rehabilitation device used for knee joint activity training according to the present invention, each of the pulleys 2 is arranged in an arc along the bottom end of the rehabilitation device body bracket 1, so that the rehabilitation device moves to the limit along the patient's leg. position (when reaching the maximum knee joint straightening angle and/or knee joint bending angle), at least two groups of the pulleys 2 are in contact with the ground, and there is a smooth transition between the pulleys 2, so as to avoid the reciprocating movement of the legs, causing the patient to Poor control or improper exercise can cause joint damage.

As an alternative, the longitudinal section of the rehabilitation device body support 1 of the present invention along the movement direction of the patient's legs is boat-shaped or arc-shaped, and the pulley 2 can be directly arranged along the bottom end surface of the rehabilitation device body support 1 to form an arc. The motion curve of the surface structure.

Further, the transverse section of the rehabilitation device body bracket 1 along the movement direction of the patient's legs can be a shape suitable for the patient's foot, preferably a square, a rectangle or an arc with two pointed ends, so as to be suitable for foot fixation. The smallest volume shape is appropriate.

As a preferred manner, the first fixing belt 3 is correspondingly arranged on the rehabilitation device body bracket 1 corresponding to the position of the patient's toe, and the second fixing belt 4 is arranged on the rehabilitation device body bracket 1 corresponding to the position of the patient's toe. At the position of the instep of the patient, the optimal setting is at the highest position of the instep of the patient, that is, near the ankle, for more stable fixation.

In the present invention, the first fixing strap 3 and the second fixing strap 4 can be selected from conventional components that can be connected and fixed in the prior art, such as conventional adjustment buckles (similar to watch straps or belts of watches) connection method), Velcro or directly adopt a strap structure; the first fixing belt 3 and the second fixing belt 4 can be made of non-elastic material or a material with certain elasticity.

As a preferred structure, in order to make the rehabilitator of the present invention suitable for patients of different sizes, the rehabilitator of the present invention is also provided with an adjustment assembly on the side of the support 1 of the rehabilitation apparatus body. The second fixing belt 4 is connected to control the sliding of the second fixing belt 4 along the length direction of the rehabilitation device body bracket 1, so as to realize the adaptive fixing of patients with different foot sizes, that is, by adjusting The adjustment assembly enables the second fixing belt 4 to always be fixed at the highest position of the patient's instep, so as to ensure the stability of the fixation.

As those skilled in the art know, in order to realize the limited sliding of the second fixing belt 4 relative to the rehabilitation device body bracket 1 in the present invention, the structure of the adjustment assembly can have various forms, such as adopting the existing In order to adjust the size of shoes in the technology, the structure of adjustment components such as adjustment rods and engaging saw teeth can also be used, such as dividing the rehabilitation device body bracket 1 into front and rear parts, and passing the adjustment between the two parts. The way of connecting and adjusting the rod and so on.

In the structure shown in Figure 1, in order to ensure the stability and continuous sliding performance of the rehabilitation device body bracket 1, the rehabilitation device body bracket of the rehabilitation device of the present invention adopts an integrated structure, and preferably the The adjustment assembly includes a sliding groove 7 arranged along the length direction of the rehabilitation device body bracket 1 and at least two sets of fixing buttons 8 arranged on the side close to the patient's foot parallel to the sliding groove 7, the sliding groove A sliding block 10 connected to the second fixing belt 4 is clamped inside the 7, and the second fixing belt 4 is limitedly slid along the sliding groove 7, and is arranged on the second fixing belt 4 The fixing hole 9 at the corresponding position on the top is engaged with the fixing button 8 and fixed to the required position. Wherein, the sliding groove 7 is set according to the foot size of a general patient, so that the second fixing belt 4 can slide steplessly between the usual size 34-45, and the fixing button 8 is set according to the applicable size. Set at least about 10 groups, and the approximate size can be marked at the position of the fixed button 8, which is convenient for quick adjustment.

At the same time, the adjusting assembly of the present invention also includes fixing buckles 5 arranged on the side of the sliding groove 7 away from the patient's feet and respectively corresponding to the fixing buttons 8. When the second fixing belt 4 is adjusted to When it is suitable for the position of the patient's foot size, the fixing hole 9 is buckled into the fixing button 8 at the corresponding position, and the fixing button 5 is buckled with the fixing button 8 to realize the adjustment of the position. The second fixing belt 4 is limited and fixed to realize the fixing of the second fixing belt 4 .

As a preferred structure, the rehabilitation device of the present invention can also be provided with straps at the position of the rehabilitation device body bracket 1 corresponding to the patient's ankle for fixing the patient's ankle.

The specific use process of the rehabilitation device for knee joint range of motion training according to the present invention is as follows:

After knee replacement, according to the patient's tolerance, when the patient can sit on the bed, the medical staff will help the patient to sit on the chair; the medical staff will place the patient's foot (wearable shoe) on the side The top surface of the rehabilitation device body bracket 1 is in contact with the rehabilitation device body bracket 1, and then the first fixing strap 3 is bound and fixed at the position of the patient's toe, so that one finger can be stretched in; then according to According to the size of the patient's foot (or shoe), adjust the sliding block 8 to slide along the sliding groove 7, and after reaching a suitable position, fasten the fixing hole 9 with the fixing button 8, and The fixing buckle 5 at the corresponding position is buckled with the fixing button 8, so as to limit and fix the second fixing belt 4 after the adjusted position, and complete the installation and fixing of the rehabilitation device.

The medical staff instructs the patient to use the rehabilitator of the present invention, and the patient's quadriceps exerts force to straighten the knee joint as much as possible to exercise the knee joint straightening function, and then the quadriceps exerts force to bend the knee joint as much as possible to perform knee joint bending Functional exercise, under the inertial assistance of the pulley of the rehabilitation device, the patient can complete the exercise of the range of motion of the knee joint with as little effort as possible, avoiding the hidden danger of postoperative tissue adhesion, and because the patient does not need to exert excessive force , It can also prolong the rehabilitation exercise time of the patient, and further strengthen the effect of the knee joint range of motion exercise.

When the patient finishes using it, the medical staff can take off the rehabilitation device from the patient's foot. When a patient finishes using it, the medical staff can disinfect the body of the exerciser according to the cloth items for the next use.

Apparently, the above-mentioned embodiments are only examples for clear description, rather than limiting the implementation. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. And the obvious changes or changes derived therefrom are still within the scope of protection of the present invention.

Claims (10)

1. a kind of device for rehabilitation for the training of knee articulation degree, which is characterized in that described including device for rehabilitation this body support frame (1) The top of this body support frame of device for rehabilitation (1) is in contact with patients feet and is realized by the fixation kit of setting to be consolidated with patients feet Fixed, the bottom end of this body support frame of device for rehabilitation (1) is provided with slide assemblies, and each slide assemblies are along the device for rehabilitation ontology branch The bottom end of frame (1) is in cabochon continuous arrangement, it is ensured that the device for rehabilitation along patient legs when moving to extreme position, at least Slide assemblies described in two groups are touched with ground so that the device for rehabilitation ontology (1) realizes that patient legs are continuous with respect to ground Non-resistance slides；The fixation kit includes that first be laterally arranged along the patients feet direction fixes band (3) and second Fixed band (4).

2. the device for rehabilitation according to claim 1 for the training of knee articulation degree, which is characterized in that described first fixes Band (3), which is set on this body support frame of device for rehabilitation (1), to be corresponded at patient's toes position, and described second, which fixes band (4), is arranged In on this body support frame of device for rehabilitation (1) correspond to patient's instep highest position.

3. the device for rehabilitation according to claim 2 for the training of knee articulation degree, which is characterized in that the device for rehabilitation sheet The side of body support frame (1) is additionally provided with adjusting part, and the adjusting part fixes band (4) with described second and is connected, for controlling The described second sliding for fixing length direction of the band (4) along this body support frame of device for rehabilitation (1) is made, to realize different foot sizes The adaptability of patient is fixed.

4. the device for rehabilitation according to claim 3 for the training of knee articulation degree, which is characterized in that the adjusting part Include along this body support frame of device for rehabilitation (1) length direction be arranged sliding recess (7) and be disposed in proximity to patients feet The side at least two groups fixing button (8) parallel with the sliding recess (7) is connected in the sliding recess (7) and described the Two fix the sliding shoe (10) that band (4) is connected, and described second fixes band (4) carries out limit sliding along the sliding recess (7), And it is interlockingly connected fixation by being set to mounting hole (9) and the fixing button (8) that described second fixes corresponding position on band (4) To required position.

5. the device for rehabilitation according to claim 4 for the training of knee articulation degree, which is characterized in that the adjusting part Further include being set to the sliding recess (7) far from patients feet side and setting corresponding with the fixing button (8) respectively Fixing buckle (5), the fixing buckle (5) realize that exchanging section postpones described second fixes after being interlockingly connected with the fixing button (8) Band (4) fixes.

6. being used for the device for rehabilitation of knee articulation degree training according to claim 1-5 any one of them, which is characterized in that described Slide assemblies are pulley (2).

7. the device for rehabilitation according to claim 6 for the training of knee articulation degree, which is characterized in that the pulley (2) It is connected with this body support frame of device for rehabilitation (1) by connecting rod (6).

8. the device for rehabilitation according to claim 7 for the training of knee articulation degree, which is characterized in that the device for rehabilitation sheet Body support frame (1) is ship type or arc along the longitudinal cross-section of patient legs' direction of motion.

9. the device for rehabilitation according to claim 8 for the training of knee articulation degree, which is characterized in that the device for rehabilitation sheet Body support frame (1) is rectangular, rectangle or arc pointed at both ends along the lateral cross section of patient legs' direction of motion.

10. the device for rehabilitation according to claim 9 for the training of knee articulation degree, which is characterized in that described first is solid Fixed band (3) and/or the second fixation band (4) are independent of each other for adjusting buckle, thread gluing or bandage.