JPH0243384Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention is a training device used for training to strengthen the muscle strength and expand the range of motion of a functionally impaired patient who is restricted in the movement of bending and extending the elbow joint.

Conventional technology A conventional device is a pulley plumb motion in which a handle is attached to the base end of a rope with a weight attached to the tip, and the middle portion of the rope is hung around a pulley fixed to an appropriate fixed frame. There is a vessel.

Problems that the invention aims to solve: With conventional devices, when the elbow joint moves back and forth between flexion and extension, a resistance force is applied in one direction, but a passive traction force is applied in the opposite direction. . Therefore, if you want to strengthen the muscle strength of both flexion and extension of the elbow joint by automatic exercise under a predetermined load, if you use a conventional device, you will have to train the flexion and extension of the elbow joint separately. must be done separately,
It has the disadvantage that it takes a lot of training time.
Furthermore, training for flexion and extension of the elbow joint requires rotating the patient's posture toward the device by 180 degrees, and if the patient is lying down and has difficulty standing up, it may take a lot of effort to change the posture. This has the disadvantage of requiring a lot of effort on the part of the caregiver.

In addition, when training flexion and extension of the elbow joint on a lying patient, there is a drawback that it takes a lot of effort to move the patient to a training room equipped with a pulley weight exerciser.

Means for solving the problems This invention solves the problems of conventional devices.
The purpose of the present invention is to provide an elbow joint training device that can efficiently train the flexion and extension of the elbow joint in a short period of time.

That is, in the present invention, a braking box 5 that supports a rotating shaft 8 horizontally protruding from a column 3 erected on a movable foot stand 2 is provided so as to be movable and fixed in the vertical direction.
A load resistor that applies resistance to the rotation of the shaft 8 is provided in the brake box 5, and a handle 10 is attached to the protruding end of the shaft 8.
Attach the arm gear 9 with the upper arm attached thereto, attach the table 12 on which the upper arm is placed below the shaft 8 to the brake box 5, and install the control section 41 that detects the rotation angle of the shaft 8 and applies a resistance load to the shaft 8. This is an elbow joint trainer.

The control unit 41 also includes a detection circuit 34 for detecting the rotation angle of the shaft 8, a right setting device 36 and a left setting device 37 for setting rotation limits in one rotation direction and the other rotation direction, and a detection circuit 34 and the value of the right setter 36, and then compare the value of the detection circuit 34 with the value of the left setter 37.
The device has a comparator 35 that compares the values from and sounds a buzzer 38 when the two values match.

Embodiment Two telescopic and fixed columns 3 are erected on a freely movable leg base 2 with casters 1 installed at the bottom, and a brake box 5 equipped with a powder brake 4 serving as a load resistor is mounted on the columns 3. is provided so as to be movable and fixed in the vertical direction. That is, there are pillars 3 on both sides of the brake box 5.
A fitting 6 is provided, into which a knob bolt 7 for pressing the support column 3 is screwed. The brake box 5 is provided with a shaft 8 whose one end projects horizontally from the front of the brake box 5, and the shaft 8 is connected to the powder brake 4 via a speed increaser 32.

An arm 9 extending perpendicularly to the shaft 8 is fixed to the end of the protruding shaft 8, and a handle 10 that can be moved and fixed along with the arm 9 is attached to one tip of the arm 9.
will be provided.

A weight 11 having a weight equal to the weight of one end of the shaft 8 is attached to the other portion of the arm 9 attached to the shaft 8.

A table 12, which is trapezoidal in front view, is supported by the brake box 5 and is provided below the protruding shaft 8. A fixing belt 14 is attached to the table 12 for wrapping and fixing the table 12 around the bed 13.

A control box 15 is mounted on the upper end of the column 3, which controls the energization of the powder brake 4, displays the amount of energization, measures and displays the rotation angle of the shaft 8, and houses other electric circuits. Ru.

An operation panel 16 equipped with a meter, digital display, knobs, push button switches, etc. is attached to one side of the control box 15, and a display panel 17 equipped with a meter, digital display, etc. is attached to the other side. attached.

The operation panel 16 is provided with a shaft 8 for rotating rightward rotation and leftward rotation as one exercise.
a right setting knob 18 that sets the target rotation angle of the shaft 8 in the right direction, a right display meter 19 that displays the set angle of the right target, and a left setting knob that sets the target rotation angle of the shaft 8 in the left direction. 20, a left display meter 21 that displays the set angle of the left target, and an axis 8.
An angle meter 22 that displays the rotation angle of the powder brake 4, a torque setting knob 23 that sets the resistance force of the powder brake 4, a torque setting meter 24 that displays this set torque, and the number of training times for left and right rotation of the shaft 8. a number setter 25 for setting the number of times to perform training, a remaining number display 26 for displaying the remaining number of times for the set training number, a start switch 27 for starting the operation of the remaining number of times display 26, and a stop switch 27 for starting the operation of the remaining number of times display 26. A switch 28 is appropriately arranged.

The display panel 17 has the above-mentioned right display meter 19.
A left display meter 21, an angle meter 22, a torque setting meter 24, and a remaining number display 26 are arranged in accordance with the operation panel 16.

Next, a block diagram of the control unit 41 will be explained. A current is applied to the powder brake 4 that applies resistance to the shaft 8 located at the rotational fulcrum of the armrest 9 from a constant current circuit 29 adjusted by the torque setting knob 23. Ru.
A current proportional to the current applied to the powder brake 4 is applied from the constant current circuit 29 to the torque setting meter 24.

A potentiometer 31 is connected to the shaft end 30 of the powder brake 4.
The output of 1 is the detection circuit 3 that detects the rotation angle of the shaft 8.
Connected to 4.

One of the outputs of the detection circuit 34 is input to the angle meter 22 that displays the rotation angle of the shaft 8, and the other output is input as one input of a comparator 35 that compares a plurality of input potentials with each other. One of the outputs of the right setting device 36, which is adjusted by the right setting knob 18 which sets the rightward rotation end of the shaft 8, is input to the right display meter 19, and the other output is input to the comparator 35.

One of the outputs of the left setting device 37, which is adjusted by the left setting knob 20 that sets the leftward rotation end of the shaft 8, is input to the left display meter 21, and the other output is input to the comparator 35.

One of the outputs of the comparator 35 is connected to a buzzer 38 that sounds when the rotation of the shaft 8 reaches the rightward rotation end or the leftward rotation end, and the other output counts the number of days remaining for training. is given to the down counter 39.

The output signals of the start switch 27 and the stop switch 28 are applied to a number setter 25 for setting the number of times of training, and the output of the number of times setter 25 is inputted to a down counter 39.

One of the outputs of the down counter 39 is applied to the remaining number of times display 26, and the other output is applied to the end buzzer 40 which audibly indicates the end of training.

As another example of applying current to the powder brake 4, it is also possible to apply the current in synchronization with the rotation of the shaft 8 in only one direction, either to the right or to the left. That is, this is done by cutting off the input current to the powder brake 4 in synchronization with the direction of rotation of the shaft 8 using a signal from the comparator 35 that detects the right or left rotation end of the shaft 8. In other embodiments, resistance-loading training of only flexion or only extension of the elbow joint is possible.

In addition, 33 in FIG. 3 is a power switch.

Effect: The patient places his upper arm on the table 12 of the device of the present invention.
Train by aligning the elbow joint with the axis of the shaft 8, attaching the forearm to the armor 9, grasping the handle 10 with the palm, and reciprocating the arm 9 in a fan-like manner repeatedly to the left and right around the shaft 8. Do this.

When this device is used by a patient lying on the bed 13, the device, which is movable by attaching casters 1 to the lower part, is positioned on the side of the bed 13, and the table 12 is lowered from above and placed on the bed 13. The table 12 is fixed to the bed 13 using the fixing belt 14, and the knob bolt 7 is tightened.

The patient places his upper arm on a table 12, grips a handle 10 fixed at an appropriate position on the arm 9, and moves the arm 9 back and forth in a fan shape.

As the armrest 9 moves, the shaft 8 rotates. The rotational force of the shaft 8 is transmitted to the powder brake 4 via the speed increaser 32.
As a result, the powder brake 4 applies a frictional force to the shaft 8 to prevent rotation. The frictional force is controlled by the current applied to the powder brake 4, and the amount of current is adjusted by the torque setting knob 23, and the amount of current is converted into torque and displayed on the torque setting meter 24, which corresponds to the rotation of the shaft 8. The training angle is between 0 and 150 degrees. Within this angular range, the left setting knob 20 and the right setting knob 18 are adjusted to match the difference between the angle of the leftward rotation end and the rightward rotation end of the shaft 8 to suit the training purpose. The leftward rotation end angle is displayed on the left display meter 21, and the rightward rotation end angle is displayed on the right display meter 19.

During training to move the arm gear 9, the rotation angle of the shaft 8 is displayed on the angle meter 22 based on the output from the potentiometer 31.

During training, if the shaft 8 is rotated to reach the set rightward rotation end, the buzzer 38 will sound, and if the shaft 8 is reversely rotated to reach the set leftward rotation end, the buzzer 38 will sound. Buzzer 38 sounds. Buzzer 3 to patient
Eight tones are heard to notify that the user has reached the individually set range of motion of the elbow joint. When the axis 8 reaches both the rotation end of right rotation and the rotation end of left rotation, the number of training times is counted as 1 and the number shown on the remaining number of times display 26 is decreased by 1.

After the training as described above has been performed a set number of times, the end buzzer 40 sounds to notify the patient that one training session has ended.

Next, a block diagram showing the electrical configuration shown in FIG. 4 will be explained.

A current to the powder brake 4 rotating together with the shaft 8 is supplied from a constant current circuit 29 whose current amount is controlled by a torque setting knob 23. The load torque applied to the shaft 8 of the powder brake 4 is displayed on a torque setting meter 24.

The rotational force of the shaft 8 is increased in speed by the speed increaser 32 and then transmitted to the powder brake 4, and the rotation angle of the shaft 8 is detected by the potentiometer 31 attached to the shaft end 30 of the powder brake 4. Convert it to an appropriate potential.

The comparator 35 compares the potential from the left setting device 37 and the potential from the detection circuit 34, and when the potential of the detection circuit 34 becomes lower than the potential of the left setting device 37, the buzzer 38 sounds and the armrest 9 rotates to the left. Displays that the target angle has been reached. Further, the comparator 35 compares the potential from the right setting device 36 and the potential from the detection circuit 34, and when the potential of the detection circuit 34 exceeds the potential of the right setting device 36, the buzzer 38 sounds and the arm 9 indicates that the target angle of clockwise rotation has been reached. The number of training sessions per session is set in advance using the number setting device 25, and when the start switch 27 is pressed to start training, the set number of training sessions is input to the down counter 39, and at the same time, the down counter 39 is activated. becomes. To cancel one training session midway and reset the down counter 39, press the cancel switch 28.

When the potential from the detection circuit 34 falls below the potential of the left setter 37 and continues to rise above the potential of the right setter 36, one training occurs and one signal is sent from the comparator 35 to the down counter. 39
is input, the count advances and the number displayed on the remaining number display 26 decreases by one.

When the number of trainings progresses and the down counter 39 counts 0, the end buzzer 40 sounds to indicate the end of one training period. The remaining number of training sessions based on the counting operation of the down counter 39 is constantly displayed on the remaining number of training sessions display 26.

Since the control box 15 has the operation panel 16 on one side and the display panel 17 on the other side, the patient during training can see the display members of the operation panel 16 or the display panel 17 at any time.

Effect: When training to rotate the arm to the left and right while holding the handle and applying a resistance force in the direction of movement, the arm will be at the arbitrarily set end of rotation to the right and to the end of rotation to the left. Since the configuration is such that a buzzer sounds on both sides when it reaches the position, it is possible to perform muscle strength strengthening training through isotonic contraction, and at the same time, it is possible to perform recovery training to expand the range of motion of the elbow joint.

In addition, since the table is installed on the bed and fixed to the bed with a belt, it is possible to train the elbow joints while lying down, even for patients who are bedridden or have difficulty getting up. You can train to strengthen the elbow joint and expand the range of motion of the elbow joint.

In addition, a left display meter and a right display meter are provided to display the set angle of the rightward rotation end of the shaft and the set angle of the leftward rotation end, respectively, and also the number of reciprocations of the shaft rotation and the number of morning sickness training sessions. Equipped with a number setting device to set the number of training sessions, a remaining number of training display device to display the number of remaining training sessions, and a torque setting meter to display the resistance load against rotation of the shaft, elbow joint recovery training can be performed quantitatively. The recovery status can be clearly seen, the patient can use it as encouragement for training, and the therapist can use it to guide training, and it can also be recorded as material.

In addition, since the powder brake is used to apply a resistance load to the rotation of the shaft, the amount of resistance can be easily varied steplessly using the torque setting knob. Furthermore, since the axis is loaded with rotation in both left and right directions, the equipment can be used to train flexion and extension of the elbow joint in the same training posture.
It is very convenient to use as there is no need to rotate the device 180 degrees or for the patient to turn around 180 degrees.

[Brief explanation of the drawing]

The attached drawings show an embodiment of the present invention, in which Fig. 1 is a front view, Fig. 2 is a side view, Fig. 3 is a view showing the operation panel, Fig. 4 is a block diagram of the control section, and Fig. 5 is a block diagram of the control section. The figure is a plan view of the inside of the brake box, and FIG. 6 is a diagram showing the display panel. 2... Leg stand, 3... Support, 4... Powder brake, 5... Brake box, 8... Shaft, 9... Arms, 1
0...handle, 12...table, 41...control unit.

Claims (1)

[Claims for Utility Model Registration] (1) A braking box 5 that supports a rotating shaft 8 horizontally protruding from a support 3 erected on a movable leg 2 is provided so as to be movable and fixed in the vertical direction. , a load resistor that applies resistance to the rotation of the shaft 8 is provided in the brake box 5, an arm fitting 9 with a handle 10 attached to the protruding end of the shaft 8, and an upper arm at a position below the shaft 8. A table 12 on which the brake is placed is attached to the brake box 5, and has a control unit 41 that detects the rotation angle of the shaft 8 and applies a resistance load to the shaft 8. The load resistance is generated by the powder brake 4, and the control unit The elbow joint trainer 41 is provided with a torque setting knob 23 for setting the value of the load resistance of the powder brake 4. (2) The control unit 41 includes a detection circuit 34 that detects the rotation angle of the shaft 8, a right setting device 36 and a left setting device 37 that set the rotation limits in one rotation direction and the other rotation direction, and a detection circuit 34 that detects the rotation angle of the shaft 8. It has a comparator 35 which compares the value of the circuit 34 and the value of the right setter 36, further compares the value of the detection circuit 34 and the value from the left setter 37, and sounds a buzzer 38 when the respective values match. An elbow joint training device according to claim (1) of the registered utility model, characterized by: