JP2012115566A - Rehabilitation device for bending and stretching lower limb - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rehabilitation device for bending and stretching lower limb allowing the disabled to bend and stretch a paralytic-side lower limb by a force of the healthy-side lower limb, highly expected to recover and restructure the brain, having high safety, suited for use in facilities and general households, and reducing the cost of the device.SOLUTION: The rehabilitation device for bending and stretching lower limb includes: a guide rail that is inclinedly disposed and extending straightly in the inclination direction; a slider for bending and stretching lower limb that is slidably provided on the guide rail and fixed with a placement board for placing both the legs of the disabled who lays on the back; an upper-side elastic member that connects the upper end of the slider to a stopper on the upper end of the guide rail; and a lower-side elastic member that connects the lower end of the slider to a stopper on the lower end of the guide rail.

Description

TECHNICAL FIELD The present invention relates to a lower limb flexion / rehabilitation device that enables a disabled person (trainer) of hemiplegia to perform lower limb training (rehabilitation) by himself without using power.
In order for humans to walk, it is only possible to bend and stretch the lower limbs, bend and stretch the legs, twist the legs inward and outward, bend the legs to the left and right, and flex and extend the toes. It is intended.

  For example, as a lower limb flexion / extension rehabilitation device for supporting the flexion / extension of the lower limbs (knee and hip joint flexion and extension) that has become hemiplegic due to a stroke, a device disclosed in “Medical Device” of Patent Document 1 has been known. Yes. This includes at least one holder for holding a human lower limb, a bending / extension support mechanism for instructing the holder to move freely in the bending and extension directions of the lower limb, and a bending / extension drive for moving the holder indicated by the bending / extension support mechanism. A mechanism and a bending / stretching control device for controlling the operation of the bending / extension driving mechanism are provided. A servo motor is employed as a driving source of the bending / extension driving mechanism. At the time of rehabilitation, the lower limb of the handicapped person is held using the holder indicated by the bending / extension support mechanism, and in this state, the bending / extension support mechanism is driven by the motor-driven bending / extension driving mechanism controlled by the bending / extension control device. Thereby, the flexion and extension rehabilitation of the lower limb of the paralyzed side of the disabled person is performed.

Japanese Patent Laid-Open No. 10-258102

However, the medical device of Patent Document 1 is provided with a bending / stretching drive mechanism using a servo motor as a power source in this way. For this reason, the patient's will not move the lower limb on the paralyzed side, including the balance between the movement range and force, and the expectation of brain recovery and reconstruction was low.
In addition, since the bending / extension driving mechanism uses a servo motor as a power source, there is a possibility that the bending / extending movement exceeds the movable range of the lower limbs on the paralyzed side, and there are cases where malfunctions and device irregularities are caused.
Furthermore, since the electric bending / stretching drive mechanism is employed in this way, a servo motor and a bending / stretching control device are required, which increases the price of the device.
In addition, today, the development of a leg flexion / rehabilitation device that can be used throughout the acute period from the second half of the onset of stroke to 1 month, the recovery period from 3 to 5 months after the onset, and the subsequent continuation period. However, there are few things that respond to it.

  The present invention allows a disabled person to perform bending and stretching exercises on the paralyzed lower limbs with the force of the lower limbs on the healthy side, and thereby has high expectations for brain recovery and reconstruction compared to the conventional electric type. Provided is a lower limb flexion / extension rehabilitation device that is suitable for use in facilities and general households and can reduce the cost of the device without forcing a bending / extension operation beyond the movable range of the lower limb on the paralyzed side, or a risk of malfunction or device messiness. The purpose is that.

  That is, the invention according to claim 1 is a lower limb flexion and extension rehabilitation device that supports rehabilitation of a lower limb of a hemiplegic handicapped person in which one lower limb is healthy and the other lower limb is paralyzed, and is inclined and is inclined. A guide rail that extends straight to the lower side, a slider for bending and stretching the lower limbs, which is slidably provided on the guide rail, and on which a mounting table on which both feet from the heel of the handicapped person to the ground are placed is fixed. An upper elastic member for connecting the upper end of the lower limb flexion slider and the upper end of the guide rail; and a lower elastic member for connecting the lower end of the lower limb flexion slider and the lower end of the guide rail. The lower limb flexion / stretching slider in which the both feet are placed on the mounting table in a knee-bending state is caused by the elastic force of the upper elastic member and the elastic force of the lower elastic member. A lower leg bending rehabilitation device stop was in the neutral position of the guide rail.

According to the first aspect of the present invention, the disabled person bends the knee in a supine state and places both feet on the placing table. In this state, the lower leg of the healthy side is extended along the inclined guide rail against the elastic force of the upper elastic member or the elastic force of the lower elastic member (the knee joint and the hip joint are extended). As a result, the lower limb on the paralyzed side is forcibly extended through the mounting table. Then, the paralyzed leg is bent along with the movement of the healthy leg.
In this way, the lower limb flexion slider with mounting base is slidably provided on the guide rail that extends straight in the tilt direction, so that the handicapped perform flexion and extension exercises on the paralyzed lower limb with the force of the lower limb on the healthy side Compared to the conventional electric type, there is a great expectation of brain recovery and reconstruction. Moreover, with this configuration, the rehabilitation assistant (physician, physical therapist, etc.) may be only one person who performs monitoring. Therefore, at the time of use in a medical facility or the like, it becomes possible to assist the rehabilitation of a plurality of disabled persons with one helper, which can contribute to resolving the shortage of today's doctors and physical therapists.

In addition, the mounting table during standby for rehabilitation is previously stopped at the neutral position of the guide rail (the base position where the lower limb can be bent and extended) by the elastic force of the upper elastic member and the elastic force of the lower elastic member. . Therefore, the disabled person can perform both bending and extension with a small initial power with respect to the paralyzed lower limb by the force of the lower limb of the healthy side with the neutral position as a base point.
In other words, after the brain movement command function has been damaged, the initial operation to perform the re-learning (recovery) of the damaged part of the brain or the reconfiguration (reconstruction) of the cranial nerve function in which the other part compensates for the damaged part The power is extremely small. For this reason, it is difficult to move a leg with a large weight immediately after the onset of stroke. However, since it is in the neutral position of the guide rail, the force of the lower limb flexion and extension slider is lowered by the weight of the lower limb and the force of the bent knee that is extended is offset. A person with a disability can recognize the movement of the lower limb flexion slider by his / her will. Moreover, this is likely to be the starting point for brain recovery and reconstruction.

  Furthermore, the handicapped person can visually check the state where the lower limb of the healthy side and the lower limb of the paralyzed side are simultaneously moving in the same direction by raising the head with the pillow. Therefore, the effect of lower limb rehabilitation can be enhanced by the theory of mirror therapy. “Mirror therapy” refers to the movement of the healthy side (non-paralytic side) of a patient who has become hemiplegic due to a stroke to the paralyzed side using a mirror. This is a training method that gives such an illusion. In addition, paralysis of limbs due to stroke and brain injury is generally said to contract in 3 to 6 months after onset. However, in recent years, due to dramatic advances in brain science and rehabilitation medicine, paralysis has been expected to recover even after more than 6 months have passed since a stroke.

Moreover, unlike conventional electric lower limb flexion / extension devices, the paralysis side lower limbs are not bent and stretched regardless of the will of the handicapped person according to a preset motion program, but are paralyzed by the healthy side lower limbs. Because the handicapped person flexes and stretches the lower limbs of the paralyzed side, the person with disabilities can flex and extend the paralyzed side of the paralyzed side while adjusting the force and range of motion on the paralyzed side. Absent. Thereby, the safety | security as a rehabilitation apparatus increases and it becomes a thing suitable not only for facilities but for general households. In addition, since the handicapped person flexes and stretches the lower limbs in a supine position, the handicapped person who falls during the rehabilitation of the leg stretching and stretching performed in a standing posture can be eliminated.
Furthermore, since an electric bending / stretching drive mechanism is not employed as in the prior art, a servo motor and a bending / stretching control device are unnecessary, and the cost of the device can be reduced.

The lower limb flexion / rehabilitation device referred to here is a device that supports rehabilitation of flexion / extension of the lower limb on the paralyzed side for a disabled person whose lower limb is hemiplegic. The lower limb flexion / rehabilitation device is used in a state where a person with hemiplegia has faced up.
“Lower limb is hemiplegic” means that the lower limb (leg) on the healthy side is the right lower limb and the lower limb on the paralyzed side is the left lower limb, but the lower limb on the healthy side is the left lower limb and the lower limb on the paralyzed side is the right lower limb. Any of these may be used. Examples of causes of “lower hemiplegia” include stroke and brain injury.

The guide rail is a straight member having one end portion disposed above and the other end portion disposed below, and the size and shape are arbitrary. The number of guide rails used may be one or two or more.
The inclined guide rail may be one in which the upper surface of a thick block material is cut obliquely, or may be provided with a support on the lower surface of one end portion of the bar. In order to adjust the inclination angle of the guide rail, for example, one long connecting hole or a plurality of connecting holes are formed in the overlapping portion of the two divided struts, and one bolt is inserted into these. A height adjustment mechanism having a structure for fastening both divided struts may be provided.
The inclination angle of the upper surface of the guide rail (sliding surface of the lower limb bending slider) is 10 ° to 25 °. If it is less than 10 °, the lower limbs will be fully extended by the weight of the lower limbs. If the angle exceeds 25 °, the lower limb falls to the upper body side by the weight of the lower limb.

As the lower limb flexion / extension slider, an LM guide that performs linear motion can be employed.
The shape and size of the mounting table are arbitrary as long as both feet from the heels of both the handicapped person to the grounding part can be mounted.
The dimensions and weights of the lower limb flexion / stretching sliders shown below are values used by a human (person with a disability) who is 170 cm tall and 70 kg in weight. The height of the lower limb bending slider including the mounting table is, for example, 120 to 220 mm. That is, in the case of an adult male having a height of 170 cm, the height from the floor to the heel when the knee is bent and pulled is preferably 120 to 220 mm. Therefore, the height of the slider is determined so as to be this height. If it is less than 120 mm, the soles face downward, and it is difficult to push the lower limb flexion / extension slider with the lower limbs on the healthy side. Moreover, if it exceeds 220 mm, the soles face forward, so it is difficult to pull the lower limb flexion / extension slider with the lower limbs on the healthy side.
As the upper elastic member and the lower elastic member, for example, a coil spring, a rubber band, or the like can be employed.

The upper elastic member and the lower elastic member may be used one by one or two or more.
As a method of arranging the lower limb flexion slider at the neutral position of the guide rail, for example, an upper elastic member and a lower elastic member having the same elastic force are used, and the lower limb flexion slider is applied to both ends of the guide rail with the same force. A pulling method can be employed. Further, it is possible to employ a method in which an upper elastic member and a lower elastic member having the same elastic force are used and the lower limb flexion / stretching slider is pulled upward and downward with the same force.
It should be noted that the mounting table should be provided with a member that fixes the mounted ankle (such as a fastening belt with a planar fastener or a buckle) so that the lower limbs, especially the lower limbs on the paralyzed side, are placed on the mounting table Can be prevented from coming off.

  In the invention according to claim 2, the guide rail is fixed to the upper surface of the inclined plate, and a placing plate on which the disabled person's buttocks and upper body are placed on the lower end of the inclined plate. The lower limb flexion / rehabilitation device according to claim 1, wherein the lower limb flexion / rehabilitation device is attached so as to be foldable about a fold axis oriented in a length direction in a width direction of the inclined plate.

  According to the second aspect of the present invention, the handicapped person places the buttocks and the upper body on the placing board and bends and stretches in this state. As a result, the lower limb flexion / rehabilitation device with a mounting plate can be stored compactly, and the limbs of the trousers and the back of the outer garment can be stored without damaging or damaging the back of the trousers, regardless of the state of the floor to bend and stretch. Can bend and stretch. In addition, since the mounting plate is connected to the inclined plate, the inclined plate slides on the floor surface with the lower limb flexing / extending operation without the inclination plate being fixed (positioned) to the floor or wall, etc. There is nothing.

As an inclination method of the inclined plate, for example, a support column can be provided on the lower surface of the upper end portion. In order to adjust the inclination angle of the inclined plate, for example, one long hole for connection or a plurality of connection holes are formed in the overlapping portion of the two divided struts, and one bolt is inserted into these. A height adjusting mechanism having a structure for fastening the two divided struts may be provided.
The shape and size of the placing plate are arbitrary as long as at least the buttocks and upper body of the handicapped person can be placed.
The mounting plate may be folded back to the upper surface side or the lower surface side of the inclined plate.

  According to the first aspect of the present invention, the lower limb bending slider with the mounting table is slidably provided on the guide rail that extends straight in the tilt direction. The lower limbs on the paralyzed side can bend and stretch, and the expectation of brain recovery and reconstruction is higher than that of the conventional electric type. Moreover, with this configuration, the rehabilitation assistant may be only one person who performs monitoring. Therefore, at the time of use in a medical facility or the like, it becomes possible to assist the rehabilitation of a plurality of disabled persons with one helper, which can contribute to resolving the shortage of today's doctors and physical therapists. In addition, since the mounting table during standby is stopped at the neutral position of the guide rail by the elastic force of the upper elastic member and the elastic force of the lower elastic member, With this power, both the flexion and extension can be performed with a small initial power on the lower limb of the paralyzed side.

In addition, unlike conventional motorized lower limb flexion and extension devices, according to a preset operation program, the disabled person does not flex and extend the paralyzed lower limb regardless of the will of the disabled, Use force to bend and stretch the lower leg of the paralyzed side. Therefore, a disabled person can flexibly extend and lower the lower limb of the paralyzed side while adjusting the movement of the lower limb of the paralyzed side, and there is no malfunction and device upset. Thereby, the safety | security as a rehabilitation apparatus increases and it becomes a thing suitable not only for facilities but for general households.
Furthermore, since an electric bending / stretching drive mechanism is not employed as in the prior art, a servo motor, a bending / stretching control device or the like is unnecessary, and the cost of the device can be reduced.

  According to the second aspect of the present invention, the guide rail is fixed to the upper surface of the inclined plate, and the mounting plate is foldable at the lower end portion of the inclined plate, so that the handicapped person has the buttocks and upper body on the mounting plate. Can be placed and bent. Thereby, irrespective of the state of the floor surface where the rehabilitation of the lower limbs is performed, the lower limbs of the paralyzed side can be bent and stretched without soiling or scratching the buttocks of the trousers and the back of the jacket. Further, since the mounting plate is connected to the inclined plate, the inclined plate does not slide on the floor surface in accordance with the operation of bending and stretching the lower limb even if the inclined plate is not fixed to the floor or the wall.

It is a perspective view which shows the use condition of the leg extremity rehabilitation apparatus which concerns on Example 1 of this invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an enlarged plan view of a lower limb flexion / stretching slider constituting a part of a lower limb flexion / rehabilitation apparatus according to Embodiment 1 of the present invention; It is a principal part enlarged front view which shows the attachment state of the lower limb bending / stretching slider which comprises a part of lower limb bending / rehabilitation apparatus which concerns on Example 1 of this invention. It is a schematic side view which shows the use condition of the leg extension / rehabilitation apparatus which concerns on Example 1 of this invention.

  Examples of the present invention will be specifically described below. For the convenience of description of the drawings, the lower limb flexion / rehabilitation device is referred to as the rear direction and the upward direction of the inclined plate as the forward direction, based on the usage state shown in FIG. Further, the left-right direction of the lower limb flexion / rehabilitation device is referred to as the left-right direction when the device is viewed from the user in use. In addition, although the healthy leg is the left leg and the paralyzed leg is the right leg, this may be reversed.

1 to 4, reference numeral 10 denotes a lower limb flexion / rehabilitation device according to Embodiment 1 of the present invention, which supports rehabilitation of a lower limb of a hemiplegic handicapped person in which one lower limb is healthy and the other lower limb is paralyzed.
The lower limb flexion / rehabilitation device 10 is foldable to a rectangular inclined plate 11 in a plan view in which one end in the length direction is arranged upward and the other end in the length direction is arranged downward, and a lower end portion of the inclined plate 11. And a mounting plate 12 on which the buttocks and upper body of a disabled person on the back are mounted, and is fixed to the upper surface of the inclined plate 11, and extends straight in the inclination direction (length direction) of the inclined plate 11. A pair of guide rails 13 parallel to each other, one lower limb flexion / stretching slider 14 slidably provided on both guide rails 13, and both of the disabled persons who are fixed on the upper surface of the lower limb flexion / stretching slider 14 and face up An upper coil spring that connects the mounting table 15 on which both feet from the heel to the grounding portion are mounted, and the upper stopper 18 provided on the upper end of the lower limb flexion slider 14 and the upper end of the guide rail 13 ( The side elastic member) 16, and a lower coil spring (lower elastic members) 17 for connecting the lower stopper 19 provided at the lower end of the lower portion and the guide rail 13 of the lower leg bending slider 14.

Hereinafter, these components will be specifically described.
The inclined plate 11 is a flat plate. One upper stopper 18 that extends in the width direction and is attached to the upper ends of both guide rails 13 is fixed to the center portion in the width direction of the front end portion of the inclined plate 11. In addition, one lower stopper 19 that extends in the width direction and is attached to the lower ends of both guide rails 13 is fixed to the center portion in the width direction among the rear end portions of the inclined plate 11. Between the upper stopper 18 and the lower stopper 19, the pair of guide rails 13 are attached in parallel with an insertion space for the upper coil spring 16 and the lower coil spring 17. Both guide rails 13 have an outward inverted L-shaped cross section perpendicular to the length direction. On the outer surfaces of both guide rails 13 (the surface opposite to the surface (inner surface) opposite to the other guide rail 13), a flange 13a for preventing the guide caster 20 from coming off is provided over the entire length of the guide rail 13. Are integrally formed (FIG. 3). Further, a latching hook 21 to which one end of the upper coil spring 16 is connected protrudes from the upper surface of the intermediate portion of the upper stopper 18. On the upper surface of the intermediate portion of the lower stopper 19, another latching hook 21 to which one end portion of the lower coil spring 17 is connected is projected. The upper coil spring 16 and the lower coil spring 17 are of the same specification with the same elastic force.

Of the lower surface of the inclined plate 11, a pair of plate-like columns 22 having a height adjusting function is supported and protruded from the front end portion by a bracket 22a (FIG. 4). Both struts 22 have one bolt hole 23a formed in the upper support plate 23 aligned with one of the three bolt holes 24a formed in the lower support plate 24 at a predetermined pitch, and the bolts 25 are inserted therethrough. It has the structure made.
The mounting plate 12 has a disabled person's buttocks mounted on the upper surface of the front portion (connecting portion with the inclined plate 11) and has an obstacle on the upper surface of the rear portion (the portion opposite to the connecting portion with the inclined plate 11). It is a rectangular flat plate on which a person's upper body is placed (FIGS. 1 and 4). A connecting seat 26 projects upward from the front end of the mounting plate 12. A hinge (folding shaft) 27 is provided between the upper end portion of the coupling seat 26 and the front end portion of the inclined plate 11 with the length direction in the width direction of the inclined plate 11. Thereby, the mounting plate 12 is configured to be foldable between the upper surface of the inclined plate 11 and the floor surface.

  The lower limb bending slider 14 has a base plate 28 formed of a rectangular flat plate that is long in the width direction (FIGS. 2 and 3). Four traveling casters 29 are disposed at each corner of the lower surface of the base plate 28. A pair of guide caster mounting seats 30 extending in the front-rear direction in a parallel state are disposed at the left and right ends of the lower surface of the base plate 28. A pair of guide casters 20 whose roller rotation axes are vertical and roll along the outer surfaces of both guide rails 13 are disposed on the inner surfaces of both end portions in the length direction of both guide caster mounting seats 30. . The weight of the lower limb bending slider 14 including the mounting table 15 is 850 g.

In addition, a small-diameter retaining ring 31 is disposed at the center of both edge surfaces in the front-rear direction of the base plate 28. Both ends of the upper coil spring 16 and the lower coil spring 17 are latched between the both latch rings 31 and the corresponding latch hooks 21 with the springs extended. As a result, the lower limb flexion / stretching slider 14 maintains a state of sliding in the front-rear direction even with a slight external force, and is elastically supported at a neutral position (intermediate position) in the length direction of both guide rails 13.
A mounting table 15 is fixed to the center of the upper surface of the base plate 28. The mounting table 15 includes a box-shaped base body 32 having a rectangular top plate 36a in plan view, and a rectangular footrest plate 33 that is erected on the front surface of the base body 32 and that is long in the width direction. ing. The height difference H from the upper surface of the top plate 36a to the upper surface of the footrest plate 33 is 5 to 8 cm (here, 6.5 cm) (FIG. 3). Moreover, the belt 37 which fixed the right and left center side to the upper surface side of the footrest board 33 of the mounting base 15, and affixed the surface fastener to both ends is attached to both ends and the center part of the length direction among the footrest boards 33. Provided. Moreover, you may arrange | position the guide board piece 34 which positions the mounted right and left leg (two-dot chain line of FIG. 2).

  On the top surface of the top plate 36a, a half is thickened thereafter, and a heel placing portion 35 on which the heels of both feet are placed is provided. The distance L from the footrest plate 33 to the heel mounting portion 35 is 7 to 10 cm (7 cm as used here with bare feet). A pair of recesses 36 are formed at both ends in the width direction of the heel mounting portion 35 to hook and position the left and right heels. The opening areas of both concave portions 36 gradually increase toward the front. Thereby, regardless of the size of the foot, the lower limb flexion / rehabilitation device 10 can be used from adults to children. In addition, if smooth R chamfering is performed on the joint wall (upper corner) of the upper surface of the heel mounting portion 35 among the formation walls of both concave portions 36, both feet are placed on the mounting table 15 when both feet are mounted. The rubbing between the heel and the mounting table 15 can be reduced.

Next, with reference to FIG. 1 to FIG. 4, the bending / extension rehabilitation of the lower limb of the hemiplegia performed using the lower limb flexion / rehabilitation apparatus 10 according to the first embodiment will be described.
As shown in FIGS. 1 and 4, first, the height of the pair of support columns 22 is adjusted so that the inclination angle of the inclined plate 11 is 20 °, and the mounting plate 12 is opened via the hinge 27, and this is set on the floor. Lay on the surface. At this time, the lower limb flexion / stretching slider 14 stops at the neutral position (intermediate position) in the length direction of the pair of guide rails 13 by the elastic force of the upper coil spring 16 and the elastic force of the lower coil spring 17.
Thereafter, the disabled person sits down on the front part of the mounting plate 12 while receiving assistance from the assistant, bends his knees and puts both feet on the mounting table 15 after being in a supine position. At this time, the heels of both feet are fitted into the recesses 36 of the heel mounting portion 35 and fixed by the belt 37 with a planar fastener, so that the heels of both feet, particularly the lower limb (right lower limb) on the paralyzed side, are placed on the mounting table during rehabilitation. Do not deviate from 15.

  Next, when performing flexion and extension of the lower limbs (flexion and extension of the knee joint and hip joint) with the neutral position as a reference, for example, the footrest plate 33 is moved forward (obliquely upward) on the back of the healthy leg (left leg). ), The lower coil spring 17 is further extended and the upper coil spring 16 is contracted, so that the lower extremity bending / extension slider 14 is extended along the guide rails 13 along the guide rail 13 or in the middle thereof. Slide to the position where can be moved. Along with this, the lower leg (right leg) of the paralyzed side is forcibly extended. Thereafter, the lower limb (knee) of the healthy side is bent, and the heel placing portion 35 is pulled backward (diagonally downward) with the heel of the healthy side to the position where the lower limb of the disabled person is bent or moved in the middle. As a result, the degree of extension of the upper coil spring 16 is increased, and the lower coil spring 17 is contracted, so that the lower limb bending slider 14 slides downward along the both guide rails 13. Thereby, the lower limb of the paralyzed side is bent by the force of the lower limb of the healthy side until it approaches the crotch. Next, the bent lower limb of the healthy side is stretched again, the footrest plate 33 is pushed forward behind the lower limb of the healthy side, and the lower limb flexion slider 14 is slid upward along the pair of guide rails 13. By repeating such an exercise, the knee joint of the paralyzed lower limb can be bent and extended with the force of the lower limb of the healthy side.

As described above, the lower limb flexion slider 14 with the mounting table 15 is slidably provided on the guide rail 13 that extends straight in the tilt direction, so that the handicapped person can flex and extend to the paralyzed leg by the force of the lower leg of the healthy side. It is possible to exercise, and the expectation of brain recovery and reconstruction is higher than that of the conventional electric type. Moreover, with this configuration, the rehabilitation assistant may be only one person who performs monitoring. Therefore, at the time of use in a medical facility or the like, it becomes possible to assist the rehabilitation of a plurality of disabled persons with one helper, which can contribute to resolving the shortage of today's doctors and physical therapists.
Further, the mounting table 15 before rehabilitation is elastically supported in advance at the neutral position of the guide rail 13 by the elastic force of the upper coil spring 16 and the elastic force of the lower coil spring 17. Therefore, when both feet are placed on the mounting table 15, the weight of the lower limb flexion / stretching slider 14 is not applied to the lower leg of the healthy side, and the handicapped person is paralyzed by the force of the lower leg of the healthy side, based on the neutral position. Any one or both of flexion and extension with respect to the lower limb can be performed with a small initial power.

  In other words, after the brain movement command function has been damaged, the initial operation to perform the re-learning (recovery) of the damaged part of the brain or the reconfiguration (reconstruction) of the cranial nerve function in which the other part compensates for the damaged part The power is extremely small. For this reason, it is difficult to move a leg with a large weight immediately after the onset of stroke. However, in this neutral position, the force with which the lower limb flexion / stretching slider 14 tries to lower and the force with which the bent knee is extended are offset by the weight of the lower limbs, so even a slight operating force can be an obstacle. The person can move the lower limb flexion / stretching slider 14 by his / her own intention and recognize it. Moreover, this is likely to be the starting point for brain recovery and reconstruction. In addition, the handicapped person can visually confirm that the lower limbs of the healthy side and the lower limbs of the paralyzed side are simultaneously moving in the same direction by raising the head with the pillow. Therefore, the effect of lower limb rehabilitation can be enhanced by the theory of mirror therapy.

Moreover, unlike conventional electric lower limb flexion / extension devices, the paralysis side lower limbs are not bent and stretched regardless of the will of the handicapped person according to a preset motion program, but are paralyzed by the healthy side lower limbs. In order to bend and stretch the lower limb, the person with disabilities can flex and extend the lower limb without difficulty, while adjusting the force and range of motion acting on the paralyzed lower limb. Nor. Thereby, the safety | security as a rehabilitation apparatus increases and it becomes a thing suitable not only for facilities but for general households. In addition, since the disabled person exercises flexion and extension of the lower limbs in the supine state, the fall of the disabled person, which was a problem during rehabilitation of the lower limb flexion and extension performed in a standing posture, is eliminated.
Furthermore, since an electric bending / stretching drive mechanism is not employed as in the prior art, a servo motor and a bending / stretching control device are unnecessary, and the cost of the device can be reduced.

  Furthermore, the handicapped person can bend and stretch on the mounting plate in a supine state. Thereby, regardless of the state of the floor surface where the rehabilitation is performed, the lower limbs of the paralyzed side can be bent and stretched without soiling or damaging the trouser's buttocks and the back of the jacket. Moreover, since the mounting plate 12 is connected to the inclined plate 11, it is possible to prevent the inclined plate 11 from sliding on the floor surface with the lower limb bending operation so that the bending / extending motion cannot be smoothly performed.

  The present invention is useful as an apparatus that supports rehabilitation of a lower limb that has become hemiplegic due to stroke, brain injury, or the like.

10 Lower limb flexion / rehabilitation device,
11 Inclined plate,
12 mounting plate,
13 guide rails,
14 Lower limb flexion slider
15 mounting table,
16 Upper coil spring (upper elastic member),
17 Lower coil spring (lower elastic member).

Claims (2)

In a lower limb flexion / rehabilitation device that supports rehabilitation of the lower limb of a person with hemiplegia who is healthy in one leg and paralyzed in the other leg,
A guide rail that is inclined and extends straight in the inclination direction;
A lower limb flexion / sliding slider to which a mounting table on which both feet from the heel of the handicapped person to the grounding portion are placed is fixed, and is slidably provided on the guide rail;
An upper elastic member connecting the upper end of the lower limb flexion and extension slider and the upper end of the guide rail;
A lower elastic member connecting the lower end of the lower limb flexion and extension slider and the lower end of the guide rail, and the lower limb flexion and extension slider on which the both feet are placed on the mounting table in a knee-bending state, A lower limb flexion / rehabilitation device that is stopped at a neutral position of the guide rail by the elastic force of the upper elastic member and the elastic force of the lower elastic member. The guide rail is fixed to the upper surface of the inclined plate,
On the lower end of the inclined plate, a mounting plate on which the disabled person's buttocks and upper body are placed so as to be foldable around a folding axis oriented in the length direction in the width direction of the inclined plate. The lower limb flexion / rehabilitation device according to claim 1.

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