JP3081786U - Manual lower limb joint bending device - Google Patents

Abstract

(57) [Summary] (with correction) [Problem] A person who has difficulty in walking alone following surgery on a lower limb joint (hip joint, knee joint, etc.) can easily and safely stretch the lower limb joint muscle without assistance. This will provide a training device that enables early walking. A bed (2) and a frame (3) are integrated so as not to move independently. A hand-operated lower limb joint bending device in which a waist is fixed to a bed with a waist band 4 and a crotch band 5 wound around a thigh is pulled by a rope 6 to safely bend hip and knee joints and stretch muscles. The rope is wound around the drum 7 by a handle 11 with a worm speed reducer 10. The handle is designed to rotate lightly with your finger. Further, by putting a foot on the foot support 12 and stepping on the foot, training of the tarsal joint and strengthening training of the foot supporting the weight can be performed.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 After operating the lower limb joints (hip, knee joints, etc.), it is necessary to fix the joints so that they do not move and recuperate until joint function is restored. During the curing period, the leg muscles are not moved, so if you try to walk after the curing period, the muscles are usually rigid and the joints do not move. For this reason, after the curing period, rehabilitation of stretching the leg muscles is necessary. The present invention relates to lower limb joint training, which is useful for a person who has undergone an operation such as a hip joint or a knee joint to stretch leg muscles, thereby realizing early walking. In addition, for long-term medical treatment other than this type of surgery, people who have a long bedridden life can benefit from using it for gait training, and therefore its utility value is high.

[0002]

[Prior art]

 In the conventional method of training the joints of the legs, a method of stretching the muscles by bending the knees of the trained person lying on his back with the help of an assistant is used. In this method, the number of times of stretching and the time are limited due to the need of an assistant, and rehabilitation according to the trainer's intention may not be possible. In the case of knee joint training, there is a method of stretching muscles with a power tool, but training with a power tool is effective for training after the joint muscles have softened. However, using power equipment from the beginning of training, when the joint muscles are stiff, can be dangerous. In particular, in the case of a hip that is difficult to train, it is extremely dangerous to use an electric device from the initial stage of training.

[0003] In the technical category of the present invention, there is Japanese Utility Model Laid-Open No. 6-3357, which focuses on training of the ankle, and the legs from the hip joint to the ankle are not bent and are united. Since it moves, there is a disadvantage that it is not possible to train the hip and knee joints. What is needed for walking training is to stretch the leg muscles so that the legs can bend around the hip and knee joints.The present invention solves the disadvantages of the prior art. Training suitable for actual walking can be performed.

[0004]

[Problems to be solved by the invention]

 In view of this situation, from the stage where the hip and knee joint muscles are rigid and unable to flex the joint, safely and freely while adjusting the strength of stretching by the trainer himself without using an assistant. It aims to provide a manual lower limb joint bending instrument that can be stretched in a short distance.

[0005]

[Means for Solving the Problems]

 The structure of the manual lower limb joint bending device devised to achieve the above-mentioned object will be described below. The device of the present invention is roughly divided into a frame and a bed, and they are integrated so that they do not move individually during training. A manual handle and a drum are fixed to the frame, and the rope fixed to the crotch band is wound around the drum. The turning strength of the handle is adjusted by adjusting the reduction ratio of the worm reducer that connects the drum and the handle so that it can be turned lightly with two fingers, allowing fine adjustment while feeling the tension of the muscles during stretching. It has a winding structure that can be used. For this reason, it has a structure that enables safe rehabilitation even in the initial stage of rehabilitation when the muscles are rigid. In addition, the frame is equipped with a foot support, and it is designed so that the crotch can be prevented by hanging on the foot and stepping on the foot, and at the same time, ankle joint training can be performed. The position of this foot support can be adjusted according to the height. A waist band is attached to the bed to keep the trainer's waist lying on his back.

[0006]

【Example】

 FIG. 1 is a perspective view showing the situation of a trainer performing rehabilitation of the hip joint and the knee joint of the right leg using the manual lower leg joint bending device according to the present invention. The structure is roughly divided into a bed 2 and a frame 3, and both are integrated so as not to move independently.

[0007] The trainer 1 takes a posture lying on his back on the bed 2 and fixes it to the bed 2 with a waist band 4 so that the waist does not rise. Thereafter, the crotch band 5 is wound around the right thigh. One end of a hoisting rope 6 for lifting the crotch toward the abdomen is fixed to the crotch band 5. The crotch band 5 is made of a soft material including a cushioning material so that a concentrated force is not applied to the crotch when pulled by the hoisting rope 6. The other end of the hoisting rope 6 is fixed to the drum 7. The crotch band 5 and the drum 7 are connected by a hoisting rope 6 via a pulley A8 and a pulley B9 fixed to the frame 2. The drum 7 is turned by a handle 11 via a worm speed reducer 10 to wind up the winding rope 6. The trainer 1 turns the handle 11 with the right hand to bend the right thigh toward the abdomen, and then stretches the hip and knee joint muscles while maintaining a certain angle.

In order to turn the handle 11 with two fingers, the speed reduction ratio of the worm speed reducer 10 is designed to be 60: 1 so that it can be turned lightly with two fingers, and a reverse rotation prevention mechanism is provided. Therefore, there is a feature that the crotch can be bent slowly and the bent state can be maintained even when the hand is released from the handle 11. If the reduction ratio is less than 60: 1, a large force is required for the rotation of the handle 11, and the crotch is sharply bent, resulting in severe stretching, which induces great pain. By devising the rotational deceleration of the drum 7 and the handle 11 in this way, it is possible to exercise without pain and without feeling tired of the hand rotating the handle 11.

The trainer 1 can sense the bending angle (limit angle) at which muscle pain occurs while turning the handle 11, so when the limit angle is reached, release the hand from the handle 11 and perform muscle stretching. By repeating this training, the limit angle is gradually increased.

[0010] A foot support 12 is fixed to the frame 3, and the trainer 1 can take a posture in which the right foot is hung on the foot and depressed, so that the training of the tarsal joint can be performed and the force can be applied to the foot. . Training to put emphasis on the feet is necessary for strengthening the feet that support weight during walking, and by using it together with the subject's hip and knee joint training, it is possible to train according to actual walking. The position of the foot support 12 is designed to be changed depending on the height and the strength of the stepping force.

In the above embodiment, the training of the hip joint and the knee joint of the right leg is performed. In the case of the left leg, the bed 2 is fixed to the opposite side of the frame 3 and the pulleys A8, B9, By attaching a hoisting device such as a drum and a drum 7 to the opposite side, the hip joint, knee joint and tarsal joint of the left leg can be trained in the same manner as the right leg.

[0012]

[Effect of the invention]

 After rehabilitation using the device according to the present invention, the patient who left the hospital after one month of curing after operating the hip or knee joint was able to walk at an early stage. It will be described according to. Immediately after discharge, the hip and knee joints could not be bent because of stiffness in the muscles of the hip and knee joints, making it impossible to walk, and began rehabilitation to bend the hip and knee joints. At the beginning of rehabilitation, the maximum angle (limit angle) that could be bent without causing pain was almost zero, and walking with crutches could be managed. As a result of rehabilitation for about 10 minutes every day, the limit angle was improved to about 20 degrees one week later, and walking using a cane was possible. Three months later, the limit angle was improved to about 45 degrees, and walking was possible without a cane. However, she continued to rehabilitate, as she had some walking anxiety, and after six months, the limit angle had improved to 90 degrees and she recovered to the point where she could walk without any difficulty.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a plan view of the present invention.

FIG. 3 is a side view of the present invention.

[Description of Signs] 1: Trainer 2: Bed 3: Frame 4: Waist band 6: Crotch band 6: Hoisting rope 7: Drum 8: Pulley A 9: Pulley B 10: Worm reducer 11: Handle 12: Foot support

Claims (1)

[Utility model registration claims] A trainer 1 fixes his / her waist with a waist band 4 in a posture lying on the bed 2 in a supine position, then wraps the thigh of the leg to be trained with a crotch band 5 and turns the handle 11 by hand. The hoisting rope 6 fixed to the crotch band
Is wound around the drum 7 via the pulley A8 and the pulley B9, the crotch is bent toward the abdomen, and the hip joint and the knee joint are simultaneously trained.