JPH10179659A - Medical apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a medical apparatus for rehabilitation effectively applied especially for disorders of a leg part, by providing a driving means to reciprocally move a pair of foot rest boards at a first angle to the horizontal plane mutually in reverse in a direction at a second angle to the horizontal plane. SOLUTION: Foot rest boards 12 are equipped slidably in the axial direction on a support column 32 obliquely extended from a base 30 at a prescribed angle β. For instance, when a pulley motor 22 is connected to each of a pair of belts 14, both pulley motors 22 are rotated in mutually reverse directions at a prescribed speed for a prescribed time, and when a prescribed time elapsed, the rotation direction of each pulley motor is switched reverse and rotated at a prescribed speed for a prescribed time. By repeating it, winding and releasing of right and left belts 14 are alternately carried out resulting in right and left foot rest boards 12 alternately performing reciprocal motion along the support column 32. At this time, leg parts laid on the foot rest boards 15 are forcibly made to perform motion same as stepping.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a medical device for preventing a decrease in bodily functions and recovering a person who has a disease or a sequela of a trauma after the treatment stage.

[0002]

2. Description of the Related Art Conventionally, even after medical treatment of a disease or trauma has been completed, a so-called rehabilitation therapy or the like is required for a person whose physical function has not yet completely recovered. Often. For example, when a serious injury is injured to a leg due to an accident or the like, even if the injury itself is healed, the original motor function is lost because the muscle has not been used during a long treatment period. In such a case, a therapy for restoring the motor function by forcibly moving the unused muscle is often performed. In addition to restoring motor function, such therapy may be required to prevent and maintain motor function decline. Conventionally, the above-mentioned therapy has been performed by repeating the operation of forcibly moving a disabled body part by the hands of a physiotherapist or the like.

[0003]

SUMMARY OF THE INVENTION The present invention provides a method for forcibly moving a disabled body part in an optimal and efficient manner.
It is an object to provide a medical device for performing automatically. It is an object of the present invention to provide a medical device for rehabilitation that can be effectively applied particularly to a leg disorder.

[0004]

In order to achieve the above object, the present invention provides a medical device having the following configuration. A first aspect of the medical device according to the present invention includes a pair of footrests arranged at a first angle with respect to a horizontal plane, and the pair of footrests with a second angle with respect to a horizontal plane. Drive means for reciprocating in opposite directions to each other.

In a second aspect of the medical device according to the present invention, the driving means connects a pair of belts, one end of which is attached to each of the footrests, to the other end of each of the belts, and changes the rotation direction. Having a controllable pulley motor, by winding or releasing the belt by rotation of the pulley motor, the footrest plate can reciprocate in the direction forming the second angle, When the pulley motor rotates to release one of the pair of belts when the other of the pair of belts is wound, the pair of footrests reciprocate in opposite directions. .

In a third aspect of the medical device according to the present invention, the speed of the reciprocating motion of the footrest can be controlled by controlling the rotation speed of the pulley motor.

In a fourth aspect of the medical device according to the present invention, the magnitude of the stroke of the reciprocating motion can be controlled by controlling the rotation time of the pulley motor in one direction.

In a fifth aspect of the medical device according to the present invention, a pair of footrests disposed at a first angle with respect to a horizontal plane, and the pair of footrests are disposed in a second position with respect to the horizontal plane. Driving means for reciprocating each in a direction making an angle of.

[0009]

When using the medical device according to the present invention configured as described above, the user sits on a chair or the like, places the left and right feet on a pair of footrests of the medical device, and drives the motor. To start. Then, in the case of the second aspect, for example, the left and right belts are alternately wound and released by the pulley motor, and the left and right footrests reciprocate correspondingly in a predetermined direction, speed and stroke.
As a result, the foot placed on the footrest is moved alternately in a predetermined direction. That is, the joints of the ankles and knees are forcibly bent, and the muscles of the inflated shins and thighs are moved. Thereby, a desired therapy is performed.

[0010] Further, by controlling the driving speed of the motor, the speed of the movement can be adjusted, and it can be used according to the prescription.

Further, by controlling the time in one direction of the motor, the moving distance in one direction, that is, the stroke can be adjusted, which can also be used according to the prescription.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic side view showing the configuration of an embodiment of the medical device according to the present invention. In the medical device 10 of FIG. 1, each component is arranged and fixed on a base table 30 placed on a horizontal plane. A pair of footrests 12 on which the user's feet are placed are arranged on both sides of the support post 14 for placing the left and right feet. The foot plate 12 is installed at a predetermined angle α with respect to a horizontal plane. This predetermined angle α is preferably fixed to a natural angle of a general human body foot determined ergonomically in order to simplify the structure.

The footrest plate 12 is slidably mounted on a support column 32 installed to extend obliquely upward at a predetermined angle β from the base table 30 in the axial direction of the support column 32.
In order to simplify the structure, the angle β of the column 32 is preferably fixed to a general angle ergonomically determined similarly to the above-mentioned angle α. The direction of the reciprocating motion (the arrow in the figure) of the footrest plate 12 is determined by the angle β. In the example of FIG. 1, a belt 14 is attached to the footrest plate 12 by a fixture 16, and the footrest plate 12 moves upward by being pulled by the belt 14. d is
It indicates the maximum movement distance of the footrest plate 12, that is, the magnitude of the stroke.

FIG. 2 is a view showing a cross section taken along the line AA of the column 32 in FIG. The column 32 is configured symmetrically with respect to the center. On both sides of the column 32, rail portions 32a are provided, which are concave portions for receiving and sliding the support portions 12a of the footrest plate 12. The footrest plate support part 12a has a rail wheel 13 that abuts against the inner wall of the support rail part 32a and rolls as the footrest plate 12 slides. As a result, a smooth reciprocating motion of the footrest plate 12 is ensured. Footrest support 1
A belt attachment 16 is disposed on the upper surface of 2a. Therefore, the belt 14 is located in the space of the rail portion 32a.

Referring again to FIG. 1, the footrest support 12
A coil spring is mounted between the lower surface of the support a and the base of the support rail 32a. This coil spring contributes to the smooth and stable movement of the footrest plate 12. Belt 14
Is mounted on a pulley 18 provided at the apex of the column 32a, and the other end of the belt 14 is connected to the pulley motor 22 via the pulley 18. In the illustrated example, the other end of the belt 14 is extended by the wire 20 and connected to the pulley motor 22, but the belt 14 may be directly connected to the motor 22. The power supply 60 of the pulley motor 22 is supplied from outside. Further, the pulley motor 22 is connected to the control unit 40 via the wiring 50. The control unit 40 includes an operation panel in which an electronic circuit for controlling the driving of the pulley motor 22 is built in and a switch 42 for performing each operation is arranged. The electronic circuit in the control unit 40 controls the on / off of the pulley motor 22, the rotation direction, the rotation speed, the rotation time in one direction (that is, the time of one stroke), and the like. Further, the time for driving the pulley motor 22 may be set by a timer. It is preferable to provide a safety switch on the operation panel that can stop the motor with one touch.

Driving of pulley motor 22 and foot plate 12
Will be described. For example, when the pulley motors 22 are connected to the pair of belts 14, that is, when the pair of pulley motors 22 are provided, the pulley motors 22 are rotated in the opposite directions at a predetermined speed for a predetermined time. After a predetermined time has elapsed, the rotation direction of each pulley motor is switched by a relay (not shown), and the pulley motor is rotated again at a predetermined speed for a predetermined time. By repeating this, the winding and release of the left and right belts 14 are performed alternately, so that the left and right footrests 12 alternately reciprocate along the columns 32. At this time, the legs placed on the left and right foot plates 12 are forcibly made to perform the same operation as the stepping.

By adjusting the rotation speed of the pulley motor 22, the movement speed of the footrest plate 12 can be changed. Further, by adjusting the rotation time of the pulley motor 22 in one direction, the size of the stroke of the footrest plate 12 can be changed.

The drive control of the pulley motor 22 may be performed by using a simple relay, or may be further performed by using a program for executing a series of sequences. By performing such a program control, it is possible to exercise not only a constant exercise but also a complex combination of exercises, and it is possible to perform an optimal prescription according to the user's symptoms.

The user sits on a chair 70 as shown in FIG. 1 and uses each foot with each foot resting on each foot plate 12. Such a chair 70 may be separately prepared, or may be integrated with the base 30 of the medical device 10. In the latter case, the front and rear positions and height of the chair may be further adjustable.

The medical device according to the present invention shown in FIGS. 1 and 2 is an example, and the arrangement of each component is not limited to this example. FIG. 3 is a configuration diagram showing the basic principle of the present invention. In the medical device according to the present invention, basically, a pair of footrests 12 are installed at a first angle α with respect to a horizontal plane H (the base table 30 in the embodiment), and these footrests 12 are placed on a horizontal plane. And a driving means for reciprocating (indicated by a solid arrow in the figure) in a direction forming a second angle β with respect to H. In the above example, the angles α and β are fixed in order to simplify the structure. However, the angles α and β may be adjusted according to the user's body type and symptoms. For example, as shown by a dashed arrow in FIG. 3, the footrest plate 12 is rotatable around the axis 12b, and the column 32 is rotatable around the axis 32b within a predetermined angle range.
In addition, it is needless to say that not only the footrest plate 12 and the support column 32 are rotatable but also a fixing means for fixing at that position after the adjustment is required.

The other components shown in FIGS. 1 and 2 include, for example, a pulley motor 22 and a control unit 40.
Can be provided at other positions. In the above example, a pair of pulley motors is provided, but only one pulley motor is provided, and each belt is wound around the pulley in the opposite direction, thereby winding one of the pair of belts and simultaneously releasing the other. May be configured. Furthermore, the mounting support means and the moving means of the footrest plate 12 are not limited to the examples shown in FIGS.

Further, any mechanism can be employed as long as the mechanism can smoothly reciprocate the footrest plate 12 in a predetermined direction. FIG. 4 is a diagram illustrating an example of a mechanism for reciprocating the footrest plate 12 in a predetermined direction. (A)
Is an example using a crank mechanism.
Is rotated, the support rod 114 connected to the tip of the connecting rod 116 reciprocates, and accordingly, the foot plate 12
Reciprocates. (B) is an example using the conical cam 216. By rotating the conical cam 216, the support rod 214 reciprocates, and as a result, the footrest plate 12 reciprocates. (C) is an example using the heart cam 316,
By rotating the heart cam 316, the support rod 314 is rotated.
Reciprocate, and as a result, the foot plate 12 reciprocates.
In this case, the foot plate 12 moves at a constant speed. (D) is an example in which the swash plate cam 416 is used. By rotating the swash plate cam 416, the support rod 414 reciprocates, and as a result, the foot plate 412 reciprocates. The rotational movement shown in each example of FIG. 4 can be realized by providing a general motor.
When implementing the present medical instrument using these mechanisms, it is desirable to cover the movable part of the mechanism for moving the footrest plate 12 with a housing or the like for safety.

In the preferred embodiment of the present invention described above, the pair of footrests 12 reciprocate in opposite directions. This is in accordance with natural leg movements during human walking, and is considered to be the most frequently used mode. However, aspects of the medical device according to the present invention include:
It is not limited only to such a reverse reciprocating motion. By enabling the respective driving means of the left and right footrests 12 to be independently controllable, the left and right footrests 12 can be individually moved. For example, both footrests 12 can be aligned in the same height and moved in the same direction, or if necessary, only one footrest 12 can be moved. By doing so, it is possible to realize an exercise that is optimal for the user.

[0024]

According to the medical device of the present invention, an optimal prescription for rehabilitation can be automatically executed without using a specialized physiotherapist.

The medical device according to the present invention has a simple and compact structure, can be manufactured at a low cost, and is easy to install and use not only at medical institutions but also at home. Therefore, the present invention greatly contributes to rehabilitation medicine.

[Brief description of the drawings]

FIG. 1 is a schematic side view showing an example of an embodiment of a medical device according to the present invention.

FIG. 2 is a diagram showing a cross section taken along the line AA of the column shown in FIG.

FIG. 3 is a configuration diagram showing a basic principle of the present invention.

FIGS. 4A to 4D are diagrams illustrating examples of mechanisms for reciprocating a footrest in a predetermined direction.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Medical instrument 12, 112, 212, 312, 412 Footrest board 12a Footrest board support part 12b Footrest board rotation axis 13 Rail car 14 Elevating belt 15 Rail axle 16 Belt attachment 18 Pulley 19 Belt connection 20 Winding Wire 22 Pulley motor 24 Coil spring 30 Base base 32 Post 32a Post rail 32b Post rotating shaft 40 Control unit 42 Control switch 50 Wiring 60 Power cord 70 Chair 116 Connecting rod 118 Crank rod 114, 214, 314, 414 Elevating rod 216 Conical Cam 316 Heart cam 416 Swash plate cam

[Procedure amendment]

[Submission date] March 13, 1997

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Name of invention

[Correction method] Change

[Correction contents]

[Title of the Invention] Medical equipment

Claims (5)

[Claims] 1. A pair of footrests arranged at a first angle with respect to a horizontal plane, and the pair of footrests are oppositely oriented in a direction at a second angle with respect to a horizontal plane. A medical device comprising: driving means for reciprocating movement. 2. The driving means has a pair of belts, one end of which is attached to each of the footrests, and a pulley motor that connects the other end of each of the belts and that can control the direction of rotation, By winding or releasing the belt by rotation of the pulley motor, the footrest plate is reciprocated in the direction forming the second angle, and the pulley motor is one of the pair of belts. 2. The medical device according to claim 1, wherein the pair of foot rests are reciprocated in a direction opposite to each other by rotating to release the other belt when winding is performed. 3. The medical device according to claim 2, wherein the reciprocating speed of the footrest plate can be controlled by controlling the rotation speed of the pulley motor. 4. The medical device according to claim 2, wherein a magnitude of a stroke of the reciprocating motion can be controlled by controlling a rotation time of the pulley motor in one direction. 5. A pair of footrests arranged at a first angle with respect to a horizontal plane, and the pair of footrests reciprocate in a direction at a second angle with respect to a horizontal plane. A medical device comprising: a driving unit.