KR20190007598A - Wearable device for Hand tremble improvement training through electrostimulation and System using the same - Google Patents

Abstract

Disclosed are a wearable device for hand tremor improvement training through electrostimulation and a hand tremor improvement training system using the same. The wearable device of the present invention includes: a hand tremor sensing unit which senses hand tremor of a user; a hand tremor analyzing unit which analyzes frequency and extent of hand tremor sensed through the hand tremor sensing unit, and determines intensity of the electrostimulation depending on the analysis results of hand tremor; and an electrostimulation transmitting unit which transmits the intensity of the electrostimulation determined by the hand tremor analyzing unit to the user. Therefore, the wearable device of the present invention can reduce inappropriate trembling of muscles while enabling the user to repeatedly perform a specific action by transmitting a low frequency electrostimulation to the arm or hand of the user. Further, the wearable device can effectively reduce inappropriate trembling of the muscles by transmitting an appropriate intensity of the low frequency electrostimulation to the user depending on the frequency and extent of hand tremor. In addition, the wearable device can verify if the electrostimulation is to be transmitted by attaching an electrical stimulator transmitting the low frequency electrostimulation to an appropriate position of the user.

Description

Technical Field [0001] The present invention relates to a wearable device for improving hand tremor through electrical stimulation and a hand tremor improvement training system using the same,

And more particularly, to a wearable device for training to improve hand tremor through electrical stimulation and a hand tremor improvement training system using the same.

Quivering is one of the most common abnormal dyskinesias, which are vibratory movements in which individual muscles contract or alternate at regular or regular intervals in some or all parts of the body. The tremor usually manifests itself continuously over time, and sometimes manifests itself as fluctuating patterns of symptoms that are more severe, often accompanied by increased emotional state, anxiety, and physical fatigue.

Since this tremor is a vibrational motion, there is a characteristic frequency. The intention tremor usually appears in cerebellar diseases and has a low frequency, and the tremor (hoarding) or standing (tremor) tremor has a high frequency. In the case of stable tremor where tremor becomes severe in the stable state where the tension of the hand or arm is removed, the diseases belonging to the Parkinsonian syndrome can be suspected.

In addition, such tremor is not a disease that leads to death but it is accompanied with depression because it makes life difficult, and if it occurs at a sensitive time such as puberty, it may hinder personality formation. In the past, However, there are problems in that the effect of dependence on drug therapy is not sufficient, and side effects of therapeutic drugs may occur depending on individuals.

Meanwhile, recently, a treatment method of applying an appropriate electrical stimulus to muscles with abnormal symptoms such as paralysis has been developed, and a method for replacing drug therapy or surgical operation based on this has been studied.

Therefore, there is a need to find ways to treat or ameliorate the symptoms of tremor without resorting to drug therapy by applying such an electric stimulation method.

Japanese Patent Laid-Open No. 2005-112516 (entitled " electric stimulation device and virtual reality bodily sensation device " Japanese Patent Application Laid-Open No. 2015-187553 (entitled "

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a magnetic resonance imaging apparatus and a magnetic resonance imaging apparatus capable of reducing low frequency electrical stimulation to a user's arm or hand, And a hand tremor improvement training system using the wearable device.

Another object of the present invention is to provide a wearable device for hand tremor improvement training through electrical stimulation that can effectively reduce inadequate tremors of muscles by transmitting low frequency electric stimulation of appropriate intensity according to the frequency of hand tremor and degree of hand tremor, And to provide an improved hand tremor training system.

It is another object of the present invention to provide a wearable device for hand tremor improvement training through an electric stimulus that can be verified whether an electric stimulator for delivering a low frequency electric stimulus is attached at a suitable position and to transmit an electric stimulus, .

According to an aspect of the present invention, there is provided a wearable device for training for improving hand tremor through electrical stimulation, comprising: a hand trembling sensing unit for sensing hand tremor of a user; A hand tremor analyzer for analyzing hand tremor frequency and hand tremor sensed through the hand tremor sensing unit and determining the strength of the electric stimulation based on the analysis result of the hand tremor; And an electric stimulation transmitting unit for transmitting an electric stimulus of the intensity determined by the hand tremble analyzing unit to the user.

The hand tremor analyzing unit may cause the electrical stimulation to be transmitted each time the hand tremor is detected, and the intensity of the electrical stimulation may be determined depending on the degree of the hand tremor.

Also, the hand trembling analyzer may compare the pre-stored hand trembling frequency information and the hand trembling intensity information with the hand trembling frequency and the hand trembling degree detected through the hand trembling detecting unit, The electrical stimulation may be transmitted only when the hand tremor frequency of the shaking frequency information is greater than or equal to the hand tremor frequency of the pre-stored hand tremor intensity information.

In addition, the electrical stimulation transmission unit may include: an electrical stimulator for transmitting an electrical stimulation to the user; And a position sensor coupled to the electric stimulator and configured to sense a real time current position of the electric stimulator.

In addition, the electric stimulator may be configured such that the electric stimulation transmitting portion is provided in a glove type so that an electric stimulus is transmitted to the user's hand when the user's hand is worn.

In another example, the electrical stimulation transmission unit may be provided in an arm band type so as to be attached to the user's arm.

According to another aspect of the present invention, there is provided a hand shake improvement training system using electrical stimulation, comprising: a head mount display for outputting information about a virtual target; And detecting the movement of the user when the user moves his or her hand toward the output virtual target and detecting the hand shake of the user during the movement of the user, And transmits the electrical stimulation to the user according to the analysis result.

At this time, the wearable device determines whether a real-time position measured in a process of moving toward the virtual target reaches a predetermined area or a motion pattern corresponds to a predetermined pattern, Or if it is determined that the predetermined pattern corresponds to the predetermined pattern, the electric stimulus may be transmitted to the user's arm or hand.

As a result, it is possible to transmit a low-frequency electric stimulus to the user's arm or hand to reduce inappropriate tremor of the muscles during repeated operation of the specific operation, and furthermore, By delivering low-frequency electrical stimulation, it is possible to effectively reduce inadequate tremors of the muscles. And an electrical stimulator that carries a low frequency electrical stimulus may be attached at a suitable location to verify that it is about to deliver an electrical stimulus.

FIG. 1 is a view for explaining a configuration of a hand tremor improvement training system through electric stimulation according to an embodiment of the present invention.
FIG. 2 is a view showing a glove type wearable device for hand tremor improvement training through electrical stimulation according to an embodiment of the present invention. Referring to FIG.
FIG. 3 is a view showing a wearable device for hand tremor improvement training through electric stimulation according to an embodiment of the present invention.
FIG. 4 is a waveform chart showing the frequency of hand tremor and the degree of hand tremor sensed by the wearable device for hand tremor improvement training through electrical stimulation according to an embodiment of the present invention.
FIG. 5 is a diagram for explaining a procedure of performing hand tremor improvement training using the hand tremor improvement training system through electrical stimulation according to an embodiment of the present invention.

Hereinafter, the present invention will be described in detail with reference to the drawings. The embodiments described below are provided as examples for allowing a person skilled in the art to sufficiently convey the ideas of the present invention. The present invention is not limited to the embodiments described below and may be embodied in other forms.

FIG. 1 is a view for explaining a configuration of a hand tremor improvement training system through an electric stimulation according to an embodiment of the present invention. FIG. 2 is a view showing a wearable FIG. 3 is a view showing a wearable device for hand tremor improvement training through electric stimulation according to an embodiment of the present invention, FIG. 4 is a graph illustrating the frequency of hand trembling and the degree of hand trembling detected by a wearable device for training to improve hand tremor through electrical stimulation according to an embodiment of the present invention. FIG.

Hereinafter, a hand tremor improvement training system (hereinafter referred to as a hand tremor improvement training system) through the electric stimulation according to the present embodiment will be described with reference to FIG. 1 to FIG.

The hand tremor training system transmits low-frequency electrical stimulation to the user's arm or hand to reduce inadvertent tremor of the muscles while allowing the user to repeatedly perform a specific operation, and also to reduce the frequency of hand tremor and the degree of hand tremor Thereby delivering a low-frequency electric stimulus of appropriate intensity to effectively reduce undesirable muscle tremors.

To this end, the hand tremor improvement training system may be composed of a wearable device 100 (hereinafter referred to as a wearable device) for hand tremor improvement training and a head mount display 200.

The wearable apparatus 100 is provided for performing hand tremor improvement training through electrical stimulation.

Specifically, the wearable apparatus 100 is provided to be worn on a user's hand or arm as shown in FIGS. 2 to 3, and when performing a movement corresponding to the information output from the head mount display 200, The hand shaking can be detected, the hand shaking frequency and hand tremor can be analyzed, and the electric stimulation for reducing the hand tremor can be delivered to the user.

The wearable device 100 may include a hand shake detection unit 110, a hand tremor analysis unit 120, an electric stimulation transmission unit 130, a first communication unit 140, and a storage unit 150 .

The hand trembling detecting unit 110 is provided for detecting the hand tremor of the user. Specifically, the hand trembling detecting unit 110 includes a motion sensor 111 therein. When a hand trembling symptom occurs, the hand trembling detecting unit 110 detects hand trembling frequency and hand trembling information, and transmits the hand trembling information to the hand trembling analyzer 120 .

The hand trembling analyzer 120 can analyze the hand trembling frequency and hand trembling degree detected through the hand trembling detecting unit 110. [ Specifically, the hand trembling analysis unit 120 may cause the electrical stimulation to be transmitted every time the hand tremor is detected, but the intensity of the electrical stimulation may be determined depending on the degree of hand tremor.

Then, the hand trembling analysis unit 120 may compare hand trembling frequency information and hand trembling intensity information pre-stored in the storage unit 150 with the hand trembling frequency and hand trembling degree detected through the hand trembling detecting unit 110 have.

At this time, the hand trembling analysis unit 120 determines that the detected hand trembling frequency is greater than the hand trembling frequency of the previously stored hand trembling frequency information, and only when the detected hand trembling degree is greater than or equal to the hand trembling degree of the pre- Stimulation can be transmitted.

Referring to FIG. 4, for example, when the hand tremor (?,?,?) Is generated with an intensity of more than the previously stored hand tremor intensity information irrespective of the occurrence frequency of the hand tremor, The hand tremor intensity (α, β (t)) is more than the pre-stored hand tremor intensity information only when the occurrence frequency of the hand tremor over a certain intensity appears within the predetermined time (T1) , < RTI ID = 0.0 > y) < / RTI >

For example, the hand trembling analysis unit 120 may be set such that electrical stimulation is delivered only when hand tremor occurs over three or more pre-stored hand tremor intensity information within a predetermined time period of Tl.

Accordingly, the hand trembling analysis unit 120 can transmit the electric stimulus only when the hand tremor occurs at a certain occurrence frequency or more, so that the vibration or vibration generated when the wearable apparatus 100 worn on the hand or worn on the arm moves It is possible to minimize errors in which the tremor is erroneously determined as a hand tremble.

The electric stimulation transmitting unit 130 may transmit the electric stimulation of the intensity determined by the hand tremle analyzing unit 120 to the user.

At this time, it is preferable to use electrical stimulation using low-frequency pulses having a rated current of 40 mA to 50 mA and a frequency range of 20 Hz to 80 Hz.

To this end, the electric stimulation transmitter 130 is connected to an electric stimulator 131 (not shown) to verify whether the electric stimulator 131 and the electric stimulator 131, which transmit the electric stimulus to the user, And a position sensor 133 arranged to detect a real time current position of the electric stimulator 131. [

In addition, the wearable device 100 including the electric stimulation transmission unit 130 may be provided in a glove type as shown in FIG. 2, or may be provided in an arm band type as shown in FIG. Specifically, when the wearable device 100 is provided in a glove type and is worn on the user's hand, an electric stimulus may be transmitted to the user's hand. At this time, Can be used to verify whether the electric stimulator 131 is to transmit an electric stimulus in a state where it is attached at a suitable position.

For example, the hand shake analysis unit 120 may determine that the glove type wearable device 100 is not properly worn and that the electric stimulator 131 is not attached to a valid position, The user can be guided to operate the electric stimulator 131 in a state where the wearable device 100 is properly worn at a suitable position.

In addition, the technical features that the hand trembling analysis unit 120 verifies the position of the electric stimulator 131 through the position sensor 133, blocks the operation of the electric stimulator 131, or generates a warning sound, The present invention can also be applied to a case where the mobile terminal 100 is implemented as an arm band type rather than a glove type.

At this time, the electric stimulation transmitting unit 130 is provided not only with the position sensor 133, but also with a gyro sensor (not shown), an acceleration sensor (not shown), and the like so that the moving direction, speed, can do.

The first communication unit 140 is provided for the wearable device 100 to perform communication with the head mount display 200. Specifically, the first communication unit 140 can perform communication with the head mounted display 200 using a short-range wireless communication method such as Bluetooth, beacon or WiFi.

For example, when the wearer moves the wearable apparatus 100 toward a virtual target based on information about a virtual target output through the head mount display 200, the first communication unit 140 may move the wearable apparatus 100 100 to the head mount display 200 to update the information about the virtual target output from the head mount display 200,

In addition, the hand trembling analysis unit 120 determines whether a real-time position measured in a process of moving toward a virtual target reaches a predetermined region or a motion pattern corresponds to a preset pattern, Or if it is determined to correspond to a predetermined pattern, electric stimulation may be transmitted to a user's arm or hand.

Through this, the user can reduce the inevitable tremor of the muscles such as the hand tremble while repeatedly performing the specific operation in the process of experiencing the virtual reality contents, so that the tremor improvement exercise can be performed pleasantly.

The storage unit 150 is provided to store programs and data necessary for driving the wearable device 100. [

Specifically, the storage unit 150 stores hand shake frequency information and hand shake intensity information, and the hand shake analysis unit 120 calculates hand shake frequency information and hand shake intensity information and the hand shake frequency detection unit 110 ) To compare the detected hand trembling frequency and the hand trembling degree.

The head mount display 200 is provided to be worn on the user's head so as to visually output information about a virtual target. To this end, the head mount display 200 includes a control unit 210, an output unit 220, a second communication unit 230 And a position sensing unit 240.

The control unit 210 is provided to control various items for driving the head mounted display 200. [ Specifically, the control unit 210 may generate virtual information including information on a virtual target to be output to the user through the output unit 220.

In addition, the control unit 210 determines virtual information including information on a virtual target output through the output unit 220 based on the real-time position of the head-mounted display 200 measured through the position sensing unit 240 Can be updated and output.

In addition, the control unit 210 updates the virtual information including the information about the virtual target output through the output unit 220 based on the position of the wearable device 100 received through the second communication unit 230 Can be output.

The output unit 220 is provided for outputting virtual information including information on a virtual target to the user and can be divided into the right and left output units 220 so as to be located near both eyes of the user.

The second communication unit 230 is provided for the head mounted display 200 to communicate with the wearable device 100. Specifically, the second communication unit 230 can communicate with the first communication unit 140 of the wearable device using a short-range wireless communication method such as Bluetooth, beacon or WiFi.

The position sensing unit 240 measures the real-time position of the head-mounted display 200. When the head-mounted display 200 is moved, if the position is changed according to the movement of the head-mounted display 200, . For this purpose, the position sensing unit 240 may include sensors such as a gyro sensor and an acceleration sensor.

Thus, the hand tremor improvement training system can transmit a low-frequency electric stimulus to the user's arm or hand, thereby reducing the inappropriate tremor of the muscles during the repetitive execution of a specific operation, and further, It is possible to effectively reduce the inevitable tremor of the muscles by transmitting a low-frequency electric stimulus of appropriate intensity according to the degree of tremor.

FIG. 5 is a view illustrating a procedure for performing hand tremor improvement training using the hand tremor improvement training system according to an embodiment of the present invention.

Hereinafter, the procedure of performing the hand tremor improvement training using the hand tremor improvement training system in the present embodiment will be described with reference to FIG.

In order to perform the hand-shake improvement training, the hand-shake improvement training system is configured such that the head-mounted display 200 and the wearable apparatus 100 are wirelessly connected to each other through a pairing process, So that virtual information including information on the target is output (S510).

When the wearable device 100 is moved, the position sensor 133, the gyro sensor, the acceleration sensor, and the like provided in the electric stimulation transmitting unit 130 are moved To detect the movement of the wearable device 100 (S520).

At this time, when the virtual information moves toward a specific target, reaches a specific area, or is a content such as a game that calculates a movement that moves toward a specific target, the wearable device 100 displays a virtual target Lt; / RTI >

If the user's hand tremor is detected (S530-Yes), the wearable apparatus 100 senses the motion and detects whether or not the hand tremor has occurred (S530) The degree of tremor can be measured and analyzed (S540).

Then, the wearable device 100 determines the intensity of the electric stimulus to be transmitted to the user based on the analysis result of the shaking frequency and the degree of hand tremor, and transmits the electric stimulus to the user at the determined intensity at step S550.

However, after the intensity of the electric stimulation is determined, before the electric stimulation is transmitted, the wearable device 100 uses the position sensor 133 to perform a verification procedure to determine whether the electric stimulator 131 is in a proper position Can be performed.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limiting the scope of the invention as defined by the appended claims. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

100: wearable device
110: hand trembling detection unit 111: motion sensor
120: hand tremor analysis unit 130: electric stimulus transmission unit
131: electric stimulator 133: position sensor
140: first communication unit 150:
200: Head-mounted display
210: control unit 220: output unit
230: second communication unit 240: position sensing unit

Claims (8)

A hand trembling detecting unit for detecting hand tremor of the user;
A hand tremor analyzer for analyzing hand tremor frequency and hand tremor sensed through the hand tremor sensing unit and determining the strength of the electric stimulation based on the analysis result of the hand tremor; And
And an electric stimulation transmitting unit for transmitting an electric stimulus of an intensity determined by the hand tremle analyzing unit to the user. The method according to claim 1,
Wherein the hand-
Wherein the electric stimulation is transmitted each time the hand tremor is detected so that the strength of the electric stimulus is determined differently according to the degree of hand tremor. 3. The method of claim 2,
Wherein the hand-
Comparing the pre-stored hand-shake frequency information and hand-shake intensity information with the hand-shake frequency detected by the hand-shake detecting unit and the degree of hand trembling, and if the sensed brush-shake frequency is greater than the hand- And the electric stimulation is transmitted only when the sensed degree of hand tremor is equal to or greater than the degree of hand tremor of the pre-stored hand tremor intensity information. The method according to claim 1,
The electric stimulation transmitting portion includes:
An electrical stimulator for delivering electrical stimulation to the user; And
And a position sensor coupled to the electric stimulator and configured to sense a real-time current position of the electric stimulator. 5. The method of claim 4,
The electric stimulator includes:
Wherein the electric stimulation transmitting portion is provided in a glove type so that an electric stimulus is transmitted to a part of the user's hand when the user wears the electric stimulation transmitting portion. 5. The method of claim 4,
The electric stimulation transmitting portion includes:
Wherein the wearer is provided with an arm band type so as to be attached to the arm of the user. A head mount display for outputting information about a virtual target; And
When the user moves his or her hands toward the virtual target, the motion is sensed. If the user senses hand tremor in the process of moving, the detected hand tremor frequency and hand tremor are analyzed And a wearable device for delivering electrical stimulation to the user according to the analysis result. 8. The method of claim 7,
The wearable device comprises:
Determining whether a real-time position measured in a process of moving toward the virtual target reaches a preset area or whether a motion pattern corresponds to a predetermined pattern, and if it is determined that the predetermined area is reached, Wherein the electric stimulation is transmitted to the user's arm or hand when the electric stimulation is determined to correspond to the user's hand or hand.

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