JP2558251Y2 - Goniometer with exercise range setting device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for measuring the range of movement of a person (hereinafter referred to as a patient) who is to undergo functional recovery training and for expanding the range of movement in the field of orthopedic surgery. Measurement of the rotation angle of the part and training for enlargement,
The present invention relates to a measurement and improvement of a rotation speed of a joint, and an improvement of a goniometer for measuring and improving a rotation acceleration of a joint.

[0002]

2. Description of the Related Art As a conventional technique, there is a technique disclosed in Japanese Utility Model Laid-Open No. 2-6211. This publication discloses a protractor with encoder including a pair of reference plates, an encoder, a counting unit, and a display unit.

[0003]

[Problems to be solved by the invention] In the prior art,
Although any angle can be measured with high accuracy according to the number of divisions of the encoder, there is no means for setting the movable range of the target motor function during recovery training of the joint of the patient, and Since there is no angle comparison function for determining whether the detected value has reached the set value, and further, there is no display means for feeding back the comparison result to the practitioner and / or the patient during training so that the comparison result can be easily understood. There is a problem that it is difficult to create data related to training program creation, feedback training cannot be performed, and effective function recovery training cannot be performed.

[0004]

The present invention solves the above-mentioned problems. A motion range setting device which clarifies a target value of function recovery training, can feed back the training status, and can perform effective function recovery training. It is intended to provide an attached goniometer. That is, the present invention is based on the angle of rotation of the joint.
Joints beyond a certain range of motion related to angular velocity and angular acceleration
A setting device (11) for setting a threshold value for detecting that the device has moved , a detector (5) for detecting the amount of rotational movement of the motion , a set value of the setting device (11) and the detector (5). ) Is obtained, and the setting range of the setting device (11) is
An arithmetic unit (1) that performs an operation such as whether or not the detected value has exceeded
4) and a goniometer with a motion range setting device comprising a calculation display section (47) for displaying the output of the calculation device (14).

The setting device (11) includes an angle setting device (15) for setting an angle and an angular speed setting device (16) for setting an angular speed, and the arithmetic unit (14) includes an angle setting device (15). An angle comparison function (13) for comparing the set value of the detector with a detection value of the detector (5), an angular velocity calculation function (18) for calculating a detection value of the detector (5) to calculate an angular velocity, and an angular velocity calculation function An angular velocity comparison function (19) for comparing the output value of (18) with the set value of the angular velocity setting device (16), and a frequency storage function (22) for storing the output value of the angle comparison function (13)
If, Bei example the angular count storage function of Ki憧(23) the output value of the angular velocity comparison function (19), wherein the number storage function (2
2) The number of times the patient's joint has rotated beyond the set range
The angular velocity count storage function (2)
3) The joint velocity of the patient exceeds the set angular velocity range.
Ru der used for storing the number of times that spent. Further, the operation display unit (47) includes a feedback display (34) for recognizing the auditory, visual, and tactile senses of the living body.

[0006]

The fixed arm 1 and the movable arm 3 constituting the goniometer section 40 of the present invention are attached to a patient's joint or the like with a belt 4 to detect the turning state of the joint or the like.
The practitioner can use the angle setting device 1 in the setting device 11 in the present invention.
In step 5, the range of the movement angle related to the angle, angular velocity, and angular acceleration at the time of rotation of the joint , that is, the joint has moved beyond a certain range.
Is set, and the detector 5 detects the motion angle of the patient , that is, the rotational movement amount of the joint . Calculation
The device 14 compares the set value of the setting device 11 with the detected value of the detector 5.
The detected value of the detector 5 exceeds the setting range of the
An operation is performed to determine whether or not it has been obtained. The angle comparison function 13 provided in the arithmetic unit 14 compares the set value of the angle setting device 15 with the detection value of the detector 5, and the comparison display 45 displays the output of the angle comparison function 13 in a state that can be easily recognized by the patient. I do. Furthermore,
An angular velocity calculation function 18 provided in the arithmetic unit 14 calculates an angular velocity based on the detection value of the detector 5 and an angular velocity comparison function 19
Setting the calculated value and the angular velocity setting unit 16 of the velocity calculation function 18
Compare with the fixed value . As a result of comparison, the calculated value exceeds the set value.
Number of signals output from the angular velocity comparison function 19
Is stored in the angular velocity number storage function 23. That is, angular velocity
The number-of-times storage function 23 stores the angular velocity set by the speed of the joint of the patient.
The number of times exceeding the degree range is stored.

The number storage function 22 provided in the arithmetic unit 14
Stores the number of signals output from the angle comparison function 13 when the detected value exceeds the set value as a result of the angle comparison function 13 comparing the set value of the angle setting device 15 with the detection value of the detector 5. . That is, the count storage function 22 sets the patient's joint.
The number of rotations beyond the specified range is stored. In the feedback display 34, which is an embodiment of the comparison display 45, the angle comparison function 13 compares the setting value of the angle setting device 15 with the detection value of the detector 5 as described above, and the detected value is A signal is output and the signal is obtained either when the value exceeds the set value or when the detected value does not exceed the set value. Then, the display 34 displays the signal in a visible state, an audible state, and a tactile recognizable state. The feedback display 34 feeds back the display on the display 34 to the patient. Using the device of the present invention, effective training for functional restoration of joints and the like is implemented.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. In the goniometer section 40 of the present invention, a base end of a movable arm 3 is pivotally mounted on a shaft 2 at a base end of a fixed arm 1. . In use, after the shaft portion 2 is aligned with the center of the joint of the patient, the arms 1 and 3 are attached to the patient by an appropriate attachment member such as the belt 4. The shaft portion 2 is provided with a detector 5 for detecting an angle generated between the arms 1 and 3. The detector 5 includes a disk 7 that rotates together with the movable arm 3 that moves in accordance with the rotation of the joint and has a large number of slits 6 formed at the edges, and a light emitting diode 8 that projects light from the surface of the disk 7. A light receiving diode 9 for receiving the light of the light emitting diode 8 on the back surface of the disc 7; and an amplifier 10 for amplifying the output of the light receiving diode 9. Two pairs of light-emitting diodes 8 and light-receiving diodes 9 are provided so as to sandwich the disk 7 in the middle. One pair detects an angle, and the other pair detects a rotation direction. is there.

The electric configuration of the present invention will be described. The goniometer section 40 is provided with the light emitting diode 8 and the light receiving diode 9 of the detector 5, and the storage section 42 has
The amplifier 10 of the detector 5 and the range of the movement function such as the movement angle of the joint and the like , that is, the joint has moved beyond a certain range.
A setting device 11 for setting a threshold value for detecting
A detection display unit 46 for displaying the output of the detector 5;
The angle comparison function 13 for comparing the set value of 1 with the detection value of the detector 5 and an arithmetic unit 14 having a plurality of functions described later.
And an operation display section 47 for displaying the operation result of the operation device 14
And are provided. The storage section 42 is supported by a stand 41. In another embodiment relating to the support of the storage section 42, although not shown, there is also a configuration in which the storage section 42 is miniaturized and attached to the patient's body using an appropriate band.

The setting device 11 includes an angle setting device 15 for setting a limit value of a joint rotation angle, an angular speed setting device 16 for setting a limit value of a joint rotation angular speed, and a joint rotation angle acceleration. And an angular acceleration setting device 17 for setting a limit value.
The detection display unit 46 includes an angle display 12 that numerically displays the value detected by the detector 5 as an angle value, and a peak value display 37 that holds and displays the maximum value of the angle value, that is, the peak value.
Consists of

The arithmetic unit 14 has eight functions. In addition to the angle comparison function 13, the arithmetic unit 14 has the following seven functions. That is, the eight functions are the angle comparison function 13
An angular velocity calculating function 18 for obtaining a detection value of the detector 5 and calculating an angular velocity; an angular velocity comparing function 19 for comparing an output of the angular velocity calculating function 18 with an output of the angular velocity setting device 16; Acceleration calculation function 20 for calculating the angular acceleration by obtaining the angular acceleration, and an angular acceleration comparison function 2 for comparing the output of the angular acceleration calculation function 20 with the output of the angular acceleration setter 17
1 and the output of the angle comparison function 13
The number storage function 22 for storing the number of times that the detected value exceeds the set value as a result of comparing the set value of the detector 5 and the detected value of the detector 5, the set value of the angular velocity setter 16 and the angular velocity value of the angular velocity calculation function 18 As a result of the comparison, the angular velocity number storage function 23 for storing the number of times the angular velocity value exceeds the set value, and the angular acceleration setter 1
The angular acceleration number storage function 24 stores the number of times that the angular acceleration value exceeds the set value as a result of comparing the set value of No. 7 with the angular acceleration value of the angular acceleration calculation function 20.

The eight functions will be sequentially described. First, the angle comparison function 13 compares the detected value of the detector 5 with the set value of the angle setting device 15, and the detected value is the set value. The specific signal is stored the number of times when the detected value exceeds the set value or when the detected value does not exceed the set value.
2 and to the calculation display section 47. Second, the number-of-times storage function 22 stores the number of times of the signal output from the angle comparison function 13, and a number-of-times indicator 25 for displaying the stored number of times is connected to the number-of-times storage function 22.

Third, the angular velocity calculation function 18 will be described in detail. The function 18 obtains the output of the detector 5 and stores the original position angle before the joint is rotated.
And a subtraction function 29 for subtracting the output of the detector 5 after pivoting the joint from the output of the angle memory function 28, and a differentiation function 30 for differentiating the output of the subtraction function 29 and calculating the speed.

Fourth, the angular acceleration calculation function 20 will be described in detail. The function 20 obtains the output of the differentiation function 30 and stores the angular velocity at the time of the previous joint rotation.
1, an angular velocity subtraction function 32 for subtracting the output of the differentiation function 30 relating to the current rotation from a value relating to the previous rotation stored in the angular velocity memory function 31, and an angular velocity subtraction function 32
Velocity differentiation function 33 for differentiating the output of the camera and calculating the angular acceleration
Consists of

Fifth, the angular velocity comparing function 19 compares the angular velocity value of the angular differentiating function 30 with the set value of the angular velocity setting device 16, and when the angular velocity value exceeds the set value or when the angular velocity value is The specific signal is output when one of the selected values is not exceeded when the set value is not exceeded. Sixth, the angular velocity count storage function 23 stores the number of times of the signal output from the angular velocity comparison function 19, and the angular velocity count display function 26 for displaying the stored angular velocity count is connected to the angular velocity count storage function 23. You. The signal output from the angular velocity comparison function 19 is, in addition to the angular velocity count storage function 23,
It reaches seven.

Seventh, the angular acceleration comparison function 21 compares the angular acceleration value of the angular velocity differentiating function 33 with the set value of the angular acceleration setter 17, and when the angular acceleration value exceeds the set value, or When the angular acceleration value does not exceed the set value, a specific signal is output when one of the two is selected. Eighth, the number-of-times-of-acceleration storage function 24 stores the number of times of the signal output from the angular-acceleration comparison function 21, and the number-of-times-of-acceleration number storage function 24 displays the stored number of times of angular acceleration. 27 is connected. The signal output from the angular acceleration comparison function 21 reaches the calculation display unit 47 in addition to the angular acceleration number storage function 24.

Next, the calculation display section 47 is provided with the number display 2
5, an angular velocity display 43 for displaying the rotational angular velocity of the joint by obtaining the output of the differentiation function 30, an angular velocity peak value display 38 for displaying the peak value of the rotational angular velocity of the joint, and the angular velocity number display 26. An angular acceleration display 44 for displaying the output of the angular velocity differentiation function 33 to display the rotational angular acceleration of the joint; an angular acceleration peak value display 39 for displaying the peak value of the rotational angular acceleration of the joint; It has an acceleration number display 27 and a comparison display 45 for displaying the output of the angle comparison function 13.

The embodiment of the comparison indicator 45 is the feedback indicator 3
The indicator 34 is a lamp 3 for displaying in a visible state.
5 and a buzzer 36 for displaying in an audible state. The output of the angle comparison function 13, the output of the angular velocity comparison function 19, and the three outputs of the angular acceleration comparison function 21 are connected to the feedback display 34. And displays the output of one or more functions in a visible state and an audible state so that the patient can easily understand the output. Further, when the vibrating body 48, the heating body 49, and the like are used for the feedback display 34, the display can be performed so that the patient can recognize the touch. .

In the case of using the embodiment, the practitioner appropriately sets the setting device 11 corresponding to the patient before the training. That is, the practitioner knows the degree of the obstacle of the patient, and first sets the limit value of the joint rotation angle, the limit value of the joint rotation angular velocity, and the limit value of the joint rotation angular acceleration. Then train the patient. The patient performs training using these three limit values set in the apparatus at the time of training as an achievement target or a safety limit for preventing deterioration.

In one example of the above-mentioned selection in each of the comparison functions, the feedback display 34 is activated when the detection value dynamically detected from the detector 5 exceeds the target value set in the setting unit 11 during training. . A lamp 35 and a buzzer 36 composed of an LED or the like of the feedback indicator 34 are turned on and sounded. In the case of using the vibrating body 48 or the heating body 49, vibration or heating is performed. In another example of the aforementioned selection, contrary to the above operation, when the detected value exceeds the target value, the feedback indicator 3
When the detected value does not exceed the target value, the feedback indicator 34 is activated.

Further, according to the present invention, a target of the angular rotation of the joint is set by an angular acceleration setting device 17 and an angular acceleration calculation function 18 is set.
The rotation angular acceleration of the joint can be calculated by the following formula, and the target concerning the rotation angular acceleration can be compared with the actually measured value. It is useful for understanding the situation and promoting function recovery training. The patient can be expected to be able to perform functional recovery training with the goal of achieving recovery to the standard value of the healthy state and to achieve the goal. In addition, the practitioner creates a program adapted to the patient. And can effectively perform functional recovery training. FIG.
The middle 50 is a conducting wire connecting the goniometer section 40 and the storage section 42. Further, if the output signal is taken out from the arithmetic unit 14 of the present invention and an appropriate analyzer is connected, a detailed angle,
It becomes possible to analyze angular velocity, angular acceleration, and the like.

[0022]

According to the first aspect of the present invention, a setting device (11) for setting a range of motion, a detector (5) for detecting motion, and a set value and detection of the setting device (11). The operation device (14) which obtains the detection value of the device (5) and performs the operation, and the operation display (47) which displays the output of the operation device (14). It is possible to create an appropriate training program such as appropriately determining the range of motion related to the movement of joints and the like according to the degree of disability, and the patient can perform training aiming at reaching the range of motion according to this program. Can be trained to effectively expand the range of motion of joints. In addition, when the goniometer unit 40 is mounted on a patient's joint, a dynamic angle during operation of the joint can be monitored. Since the dynamic angle data is fed back to the patient in real time, there is an advantage that an effect such as improvement in willingness to train can be expected.

According to the second aspect of the present invention, since the arithmetic unit 14 is provided with the angular velocity calculating function 18 and the angular velocity comparing function 19, when the patient rotates the joint, the angular velocity relating to the rotation is measured. The value can be compared with a target value set in advance by the practitioner. The practitioner has the benefit of being able to evaluate the rotational angular velocity of the joint, and can provide the patient with the set value as a target. Can perform recovery training on joint angular velocity.

Further, as a result of comparing the set value of the setter 11 with the detected value of the detector 5, the number of times that the detected value exceeds the set value is provided with a number storage function 22. By knowing the number of times the detected value has exceeded the set value and knowing the displayed value, it is easy to grasp the patient's recovery state, and effective function recovery training is possible.

According to the third aspect of the present invention, the output of the angle comparison function 13, the angular velocity comparison function 19, or the angular acceleration angle comparison function 20 is obtained, and the detection value of the detector 5 is set to the setting unit 11.
Since the feedback display 34 which is activated when the set value of the detected value does not exceed the set value or the detected value does not exceed the set value is connected to the arithmetic unit 14, the patient can perceive the display of the feedback display 34. It is possible to clearly know in real time whether or not the set value as the training target has been reached, which has the effect of improving the motivation for training, and furthermore, a safety limit for avoiding deterioration of the affected area such as a joint in the patient. There is an effect that the training can be done safely by reminding them that

[Brief description of the drawings]

FIG. 1 is a block diagram showing an electrical configuration of the present invention.

FIG. 2 is an external view showing a use state of the present invention.

FIG. 3 is a perspective view of the detector according to the present invention.

[Explanation of symbols]

 5 Detector 11 Motion range setting device 12 Angle display 13 Angle comparison function 14 Computing device 15 Angle setting device 16 Angular speed setting device 17 Angular acceleration setting device 18 Angular speed calculation function 19 Angular speed comparison function 22 Number storage function 23 Angular speed count storage function 34 Feedback display 45 Comparison display 47 Calculation display

Claims (3)

(57) [Scope of request for utility model registration] 1. An angle, angular velocity, and angular acceleration at the time of rotation of a joint.
Beyond a certain range of movement of the detecting that the joint is moved
Setting device (11) for setting the threshold value for
Detector (5) for detecting the amount of rotational movement of
The setting value of 1) and the detection value of the detector (5) are obtained, and the setting device
Whether the detection value of the detector 5 exceeds the setting range of (11)
An arithmetic unit (14) for performing operations such as
A goniometer with a motion range setting device, comprising a calculation display section (47) for displaying the output of 4). 2. A setting device (11) comprising: an angle setting device (15) for setting an angle; and an angular speed setting device (1) for setting an angular speed.
6), and the arithmetic unit (14) includes an angle setting device (15)
An angle comparison function (13) for comparing the set value of the detector with a detection value of the detector (5), an angular velocity calculation function (18) for calculating a detection value of the detector (5) to calculate an angular velocity, and an angular velocity calculation function An angular velocity comparison function (19) for comparing the output value of (18) with the set value of the angular velocity setting device (16);
Count storage function for storing an output value of 3) and (22), e Bei the angular count storage function for storing an output value (23) of the angular comparison function (19), wherein the number storage function (22),
Remembers the number of times the patient's joint has rotated beyond the set range
The angular velocity count storage function (23)
The number of times the patient's joint velocity exceeds the set angular velocity range
Movement range setting unit with a goniometer according to claim 1, wherein the der Rukoto which stores the number. " 3. The movement range setting device according to claim 1, wherein the operation display unit (47) includes a feedback display (34) for recognizing the auditory, visual, and tactile senses of the living body. Goniometer.