CN104970908A - Stretching assisting orthosis of knee joints - Google Patents

Abstract

The invention discloses a knee joint extension orthosis, which comprises a thigh orthosis, a lower leg orthosis, an elastic band in a stretched state and two knee joints, one end of the knee joints is symmetrically fixed On both sides of the lower leg orthosis, the other end is symmetrically linked to both sides of the thigh orthosis, one end of the elastic band is connected to the front surface of the thigh orthosis, and the other end is connected to the lower leg orthosis front surface. The present invention utilizes the elastic belt to stretch the orthopedic part of the thigh and the orthopedic part of the calf, which can achieve two effects. One is to help the quadriceps to assist the active movement when walking, and to play a stretching effect on the patient's knee flexion. The knee joint is straightened to achieve the effect of knee extension. Second, when not walking, it can be used as a resistance exercise to train the hamstring and gastrocnemius muscles, enhance the muscle strength of the lower limbs, and achieve the effect of stabilizing the knee joint.

Description

knee extension orthosis

technical field

The invention relates to the field of medical devices, in particular to a knee joint extension-assisted orthosis.

Background technique

At present, many patients are unable to stand with their lower limbs due to nerve damage, quadriceps weakness, or mild knee flexion contracture, or cannot keep their knees straight when standing, which seriously affects their normal life, study and work. , and sometimes discriminated against.

However, many patients, especially adolescents, can use auxiliary orthotic devices for joint correction, which will effectively improve this situation and return to normal life, study and work.

Contents of the invention

The present invention aims to solve at least one of the problems existing in the prior art.

The technical problem to be solved by the present invention is to solve the problem that patients cannot stand with their lower limbs due to nerve damage, quadriceps muscle weakness, or mild knee flexion contracture, or the knee joint cannot maintain a straight position when standing.

In order to solve the above technical problems, the present invention provides a knee joint extension orthosis, which includes a thigh orthosis, a lower leg orthosis, an elastic band in a stretched state, and two knee joints. One end of the connector is symmetrically fixed on both sides of the lower leg orthosis, and the other end is symmetrically and flexibly connected to both sides of the thigh orthosis. One end of the elastic band is connected to the front surface of the thigh orthosis, and the other end is connected to the Front surface of the calf orthosis.

Further, it also includes a foot orthotic and two ankle connecting pieces, one end of the ankle connecting piece is symmetrically fixed on both sides of the lower leg orthotic, and the other end is symmetrically linked to both sides of the foot orthotic.

Further, the rear surface of the thigh orthosis is provided with an opening.

Further, the thigh orthosis is provided with a first hook and loop fastener for tightening the inner space of the thigh orthosis.

Further, the rear surface of the lower leg orthosis is provided with an opening.

Further, the lower leg orthosis is provided with a second hook and loop fastener for tightening the inner space of the lower leg orthosis.

Further, the knee joint is connected with the orthopedic part of the thigh through one screw rod, and is fixedly connected with the orthopedic part of the lower leg through at least two screw rods.

Further, the ankle connecting piece is linked with the foot orthotic through one screw rod, and is fixedly connected with the lower leg orthotic through at least two screw rods.

Further, protrusions are provided at the joints of the thigh orthosis and the knee joint and the joints of the lower leg orthosis and the knee joint, and the knee joint is placed in the protrusions.

Further, protrusions are provided at the joints between the calf orthosis and the ankle connecting piece, as well as the foot orthosis and the ankle connecting piece, and the ankle connecting piece is placed in the protrusion.

The beneficial effect of the present invention is to provide a knee joint extension orthotic. The present invention utilizes elastic bands to stretch the thigh orthosis and the calf orthosis, which can achieve two effects. The head muscle assists active movement, which stretches the patient's knee flexion and straightens the knee joint to achieve knee extension. Second, when not walking, it can be used as resistance exercise for training hamstring and gastrocnemius muscles and strengthening lower limb muscles. force to stabilize the knee joint.

Description of drawings

FIG. 1 is a schematic structural view of a knee joint extension orthosis according to an embodiment of the present invention.

Detailed ways

The present invention will be described in detail below in conjunction with specific embodiments. It should be noted that the technical features or combinations of technical features described in the following embodiments should not be regarded as isolated, and they can be combined with each other to achieve better technical effects.

Example

This embodiment provides a knee joint extension assisting orthosis, as shown in Fig. An ankle link 6 and two knee links 5.

One end of the knee connector 5 is arranged symmetrically on both sides of the lower leg orthotic 2, and is fixedly connected to the lower leg orthotic 2 through at least two screw rods 7, and the other end of the knee connector 5 is symmetrically arranged on On both sides of the thigh orthotic 1, the knee connector 5 is linked with the thigh orthosis 1 through a screw rod 7, and the flexible connection is realized through the link, so that when the patient wears this embodiment for knee correction , It can also realize the bending of the knee, which is convenient for the daily life of the patient.

Protrusions 81 are provided at the joints of the thigh orthosis 1 and the knee connector 5 and at the junction of the calf orthoped 2 and the knee connector 5, and the knee connector 5 is placed on the protrusion 81 middle. By placing the knee joint 5 on the protrusion 81, the friction of the knee joint 5 on the patient's thighs, calves and knees can be avoided, and the use comfort is improved.

One end of the elastic band 3 is connected to the front surface 11 of the thigh orthosis 1, and the other end is connected to the front surface 21 of the lower leg orthosis 2, and the patient's knee is flexed by the elastic band 3 in a stretched state. Played a role in stretch correction.

One end of the ankle connector 6 is symmetrically fixed on both sides of the calf orthopedic part 2, and is fixedly connected with the calf orthopedic part 2 through at least two screw rods 7, and the other end of the ankle connector 6 is symmetrically linked to the Both sides of the foot orthotic 4 are linked with the foot orthosis 4 through a screw rod 7 .

Protrusions 82 are provided at the joints of the lower leg orthosis 2 and the ankle connection 6 and between the foot orthosis 4 and the ankle connection 6 , and the ankle connection 6 is placed in the protrusions 82 . By placing the ankle connecting piece 6 on the protrusion 82, the friction of the ankle connecting piece 6 on the patient's ankle, calf and foot can be avoided, and the use comfort is improved.

In this embodiment, the rear surface 12 of the thigh orthosis 1 and the rear surface 22 of the calf orthosis 2 are both provided with openings, and the adjustment of the thigh orthosis 1 and the calf can be realized through the openings. The accommodating space inside orthopedic part 2, the 2nd, improve the ventilation situation when wearing.

In this embodiment, the thigh orthosis 1 is provided with a first hook and loop fastener 91 for tightening the inner space of the thigh orthosis 1, and the calf orthosis 2 is provided with a first fastening belt 91 for tightening the lower leg. The second Velcro 92 in the inner space of the orthopedic part 2, through the first Velcro 91 and the second Velcro 92, the effect of the opening on the accommodating space of the thigh orthopedic part 1 and the calf orthopedic part 2 is enhanced. Adjustment makes this embodiment more convenient to wear, compact and not easy to fall off.

In this embodiment, the orthopedic part 1 for the thigh, the orthopedic part 2 for the lower leg and the orthopedic part 4 for the foot can be provided with perspiration holes to increase the ventilation of the patient's legs and provide the comfort of use in this embodiment.

The invention provides a knee joint extension orthotic. The invention uses an elastic band 3 to stretch the thigh orthosis 1 and the lower leg orthosis 2, which can achieve two effects. One is to help the quadriceps when walking. Muscle-assisted active exercise can stretch the patient's knee flexion, straighten the knee joint to achieve knee extension, and second, when not walking, it can be used as resistance exercise to train hamstring and gastrocnemius muscles and enhance lower limb muscle strength , to achieve the effect of stabilizing the knee joint.

In the description of the present invention, the terms "movable connection", "fixed", "link" and "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integrated A connection; either direct or indirect through an intermediary. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

Although some embodiments of the present invention have been given herein, those skilled in the art should understand that the embodiments herein can be changed without departing from the spirit of the present invention. The above-mentioned embodiments are only exemplary, and the embodiments herein should not be used as limitations on the scope of rights of the present invention.

Claims (10)

1. A knee joint extension orthotic, characterized in that it comprises a thigh orthotic, a calf orthosis, an elastic band in a stretched state and two knee connectors, one end of the knee connector It is symmetrically fixed on both sides of the lower leg orthosis, and the other end is symmetrically connected to both sides of the thigh orthosis. One end of the elastic band is connected to the front surface of the thigh orthosis, and the other end is connected to the calf Front surface of the orthotic. 2. The knee joint extension orthotic according to claim 1, further comprising a foot orthosis and two ankle connecting pieces, one end of the ankle connecting piece is symmetrically fixed on the lower leg orthotic. On both sides, the other end links symmetrically to both sides of the foot orthotic. 3. The knee joint extension orthosis according to claim 2, characterized in that, the rear surface of the thigh orthosis is provided with an opening. 4 . The knee joint extension orthotic according to claim 3 , wherein the thigh orthosis is provided with a first Velcro belt for tightening the inner space of the thigh orthosis. 5 . 5. The knee joint extension orthosis according to claim 4, characterized in that an opening is provided on the rear surface of the lower leg orthosis. 6 . The knee joint extension orthosis according to claim 5 , characterized in that, the lower leg orthosis is provided with a second Velcro belt for tightening the inner space of the lower leg orthosis. 7 . 7. The knee joint extension-assisted orthosis according to claim 6, characterized in that, the knee joint is linked with the orthopedic part of the thigh through a screw rod, and connected with the orthopedic part of the lower leg through at least two screw rods. Fixed connection. 8. The knee joint extension orthosis according to claim 7, characterized in that, the ankle connecting piece is linked with the foot orthotic through a screw rod, and is fixed with the calf orthotic through at least two screw rods connect. 9. The knee joint extension-assisted orthosis according to claim 8, characterized in that, the connection between the thigh orthosis and the knee connector and the connection between the lower leg orthosis and the knee connector are provided with a protrusion, and the knee joint is placed in the protrusion. 10. The knee joint extension-assisting orthosis according to claim 9, characterized in that the junction of the calf orthosis and the ankle connector and the foot orthosis and the ankle connector are all provided with protrusions, the Ankle link rests in raised bumps.