KR101443861B1 - apparatus for early detection of paralysis using motion sensing - Google Patents

Abstract

The present invention relates to a method of detecting a motion of a subject, comprising: a sensing unit for sensing a motion characteristic value of at least one left end and at least one right end of the upper or lower extremity; And a motion abnormality determination unit for determining whether the difference value of the motion characteristic value of the right end portion exceeds a reference value. The motion detection apparatus may further include a movement detection unit for detecting movement of the distal end portion based on a relative motion difference of a distal end portion such as left and right wrists, The sensor of the sensor unit can be attached to the hands and feet, and the wrist and ankle can be attached to the wrist and ankle. It can be worn like a watch or a foot bracelet to enhance ease of use.

Description

[0001] The present invention relates to an apparatus for early detection of motion paralysis using motion detection,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an early detection device for a motion paralysis, and more particularly, to a motion detection early detection device for early detection of a patient who causes paralysis symptoms, such as a stroke patient.

Stroke is a disease caused by the breakdown or clogging of the blood vessels. It is well known that the more effective the treatment is after the stroke, the better the treatment effect. Therefore, in order to quickly distinguish between strokes, a quick diagnosis of suspected patients is of utmost importance.

Especially. In patients recovering after a mild stroke, there is a high likelihood of severe stroke again. If these patients are diagnosed with an early recurrent stroke, the patient is likely to have a good prognosis.

Generally, after a stroke occurs, hemiplegic symptoms occur in which one limb of the patient is paralyzed at the beginning. Occasionally, paralysis occurs in the form of monoparesis, where paralysis occurs in only one arm or leg, and paralysis occurs in both legs. However, there is no device for early detection of the occurrence of a stroke by detecting the characteristics of the patient at the early stage of the stroke. Therefore, it is urgently necessary to detect a disease such as a stroke, which causes serious and long-term disability and causes death to the patient due to late treatment.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide a motion sensing early sensing apparatus capable of early detection of stroke.

According to an aspect of the present invention, there is provided an apparatus for detecting a motion of a subject, comprising: a sensing unit for sensing a motion characteristic value of at least one left end and at least one right end of the upper or lower extremity; And a motion abnormality determination unit for determining whether a difference value between a motion characteristic value and a motion characteristic value of the right end portion exceeds a reference value. At this time, it is preferable that the sensing part is located at a distal portion of the body such as the wrist or the ankle.

Advantageously, the sensing unit may include a first communication unit for transmitting the motion characteristic value.

Preferably, the movement failure determination unit may further include a warning unit for warning of a movement disorder when it is determined that the difference between the movement characteristic value of the left distal end portion and the movement characteristic value of the right distal end portion exceeds a reference value .

Advantageously, the warning unit may include a second communication unit for transmitting a signal containing the motion fault information.

The mobile communication terminal may further include a display unit for displaying movement defect information transmitted from the second communication unit.

Advantageously, the characteristic value of movement of said distal end is: Speed, acceleration, and travel distance.

Preferably, the left distal end may be a distal end corresponding to the right distal end.

According to another aspect of the present invention, there is provided a motion estimation method comprising: sensing a motion value of at least one distal end of a superior or inferior limb; calculating a sum of characteristic values of motion of the distal end, And a motion abnormality determination unit for determining whether the difference value of the sum of the characteristic values of the motion of the distal end exceeds a reference value for the next unit time.

Preferably, the sensing unit includes a first communication unit for transmitting the motion characteristic value.

Preferably. If the motion failure determination unit determines that the sum of the characteristic values of the motion of the distal end detected by the sensing unit for a unit time and the difference value of the sum of the motion characteristics of the distal end during the next unit time exceeds the reference value , And a warning unit for warning of a movement disorder.

Advantageously, the warning unit may include a second communication unit for transmitting a signal containing the motion fault information.

The mobile communication terminal may further include a display unit for displaying movement defect information transmitted from the second communication unit.

Advantageously, the characteristic value of movement of said distal end is: Speed, acceleration, and travel distance.

According to another aspect of the present invention, there is provided a motion estimation method comprising: sensing a motion value of at least one distal end of a superior or inferior limb; calculating a sum of characteristic values of motion of the distal end, And determining whether the difference is less than the reference value.

Preferably, the movement failure determination unit may further include a warning unit for warning a movement failure when the sum of the characteristic values of the movement of the distal end detected by the sensing unit for a unit time is less than a reference value.

Advantageously, the warning unit may include a second communication unit for transmitting a signal containing the motion fault information.

The mobile communication terminal may further include a display unit for displaying movement defect information transmitted from the second communication unit.

Advantageously, the characteristic value of movement of said distal end is: Speed, acceleration, and travel distance.

According to the early detection device for motion paralysis according to the present invention, there is provided a motion failure judgment unit for judging whether or not a motion abnormality of the patient is based on a relative motion difference of a distal end portion such as left and right wrists or ankles for a predetermined time, Thereby providing an advantageous effect of early detection of the occurrence of paralysis caused by the paralysis.

According to the present invention, there is provided an early detection device for a motion paralysis, comprising a warning part for warning of a movement disorder of a patient and a second communication part and a display part for delivering information on the movement disorder of the patient to the doctor in real time, Thereby providing an advantageous effect of enabling the patient to be treated promptly.

FIG. 1 is a block diagram illustrating a configuration of a preferred embodiment of the exercise paralysis early monitoring apparatus according to the present invention.
2 is a view showing an example of a sensor worn on a wrist,
FIG. 3 is a view showing the movement of the left wrist,
Fig. 4 is a diagram showing the movement of the right wrist. Fig.

Hereinafter, a preferred embodiment of a motion sensing early warning device according to the present invention will be described.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. It should be understood, however, that the invention is not limited to the disclosed embodiments, but is capable of many different forms and should not be construed as limited to the embodiments set forth herein; It is intended that the disclosure of the present invention be limited only by the terms of the appended claims. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

1 is a block diagram illustrating a configuration of a first embodiment of a motion disorder monitoring apparatus according to the present invention.

1, the apparatus for early detection of a motion paralysis according to the present invention includes a sensing unit 100, a movement disorder determination unit 200 for sensing a movement disorder of a patient based on a difference in extension and flexion of a left end and a right end, ).

First, the sensing unit 100 will be described.

The sensing unit 100 senses a characteristic value of movement of the distal end of the upper limb or the lower extremity. Here, the term "upper limb" means both arms of the human body, and "lower limb" means both limbs of the human body. The term " distal end " means the end portion of the limb where the extension and flexion are performed, such as the wrist or ankle of the human body.

Here, the movement of the distal end means extension and bending, movement and rotation of the distal end.

At this time, the extension refers to the stretching operation of the distal end as described above, and the flexion refers to the folding operation of the distal end.

The sensing unit 100 includes a plurality of sensors, and each sensor is attached to the extremities of the upper or lower limbs. The sensors of the sensing unit 100 can sense the movement of the distal end and measure the characteristic value of the movement of the distal end.

Here, the motion characteristic value means the velocity, acceleration, and movement distance according to the motion of the distal end portion. The acceleration represents the change of the moving speed per unit time, and the moving distance can be obtained by using the speed and time.

The sensing unit 100 senses the movement of the distal end, extracts the characteristic value as an electrical signal, and transmits it to the movement failure determination unit 200 through the first communication unit 410 described later.

In one embodiment. As a sensor attached to the distal end, an accelerometer is used. Here, the acceleration sensor collectively refers to the sensors that measure the movement of the distal end by utilizing the movement of the body. Such an acceleration sensor is attached to the distal end of the limb.

These sensors can be worn in the form of a watch or an ankle, and are preferably located distal to the body, such as the wrist or ankle.

The acceleration sensor S receives analog information on the degree of movement of the wrist rotating around the elbow as a rotation center. Analog information about the movement of the received wrist is sent to the A / D converter, which converts it to a digital signal.

The movement failure determination unit 200, which will be described later, can determine how much the user bends or unfurls the elbow based on the sensing results of the acceleration sensor S converted into a digital signal and transmitted.

At this time, the technology sensor can be configured to measure the movement of the wrist in the two-axis or three-axis directions.

Although the sensor of the sensing unit 100 is described as an acceleration sensor as described above, the present invention is not limited thereto, and a tilt sensor, a gyroscope, or the like may be used.

Next, three embodiments of the motion disorder judgment unit 200 will be described.

First Embodiment

The motion disorder determination unit 200 receives the motion characteristic values of the end portions extracted by the sensing unit 100 and determines whether the difference value of the motion characteristic values of the corresponding left and right end portions exceeds the reference value .

That is, based on the difference between the left limb and the right limb of the human body, the patient wearing the sensing unit 100 determines whether the hemiplegic symptom, which is the initial symptom of the stroke, starts.

For example, the movement disorder determination unit 200 determines whether the difference between the angular velocity of the left wrist and the right wrist of the patient due to extension and flexion is out of the normal range.

Here, the reference value means a threshold value of a motion difference that can appear even in the absence of paralysis. That is, the difference of each motion within the reference value means a normal motion, and the difference of each motion that is out of the reference value means that a stroke occurs in the corresponding patient.

That is, the difference in the movement of the distal end within the reference value means a normal movement in which the hemiplegic symptom does not occur, and the difference in movement of the distal end out of the reference value means that the stroke occurred in the corresponding patient.

The reference value can be set according to the motion characteristics of the human body such as walking motion, beating motion, sitting motion, and the like.

Hereinafter, the determination of the motion disorder of the patient will be described in detail with reference to FIGS. 3 and 4. FIG.

3 is a view showing the movement of the left wrist, and Fig. 3 is a drawing showing movement of the right wrist.

As an example of the distal end portion, as shown in Figs. 3 and 4, the left wrist and the right wrist are taken as an example. It can be understood from the contents of the present invention that the motion of the patient can be judged by detecting the movement of the distal end in addition to the wrist.

When the left elbow flexes in response to a specific motion of the human body, a speed and an acceleration, which can be represented by the arrows in Fig. 3, are generated. By measuring the velocity and the acceleration that can be indicated by the arrows in Fig. 3 at predetermined time intervals for a certain period of time, the sum of the movements of the left wrist corresponding to a specific motion of the human body can be measured.

As shown in Fig. 4, when the right elbow is flexed in response to a specific operation of the human body, a speed and an acceleration, which can be represented by arrows in Fig. 4, are generated.

By measuring the velocity and the acceleration that can be represented by the arrows in Fig. 4 at predetermined time intervals for a predetermined period of time, the total sum of the movements of the right wrist corresponding to a specific motion of the human body can be measured.

Corresponding to a predetermined human body movement characteristic, for a predetermined time. If the difference between the sum of the movements of the left wrist and the sum of the movements of the right wrist exceeds the reference value, the movement failure judgment unit 200 judges that the movement is disordered and transmits the movement disorder information to the warning unit 300 .

This is because the patient who has a stroke is paralyzed on one side of the upper and lower limbs, and the fact that the unilateral decrease of the unilateral extremity is used is used for the early detection of stroke.

Second Embodiment

The motion disorder determination unit 200 receives the motion characteristic values of the end portions extracted by the sensing unit 100 and calculates a sum of the motion characteristic values of the end portions during the unit time and a sum of the motion characteristics of the end portions And determines whether the difference value of the total sum of the characteristic values of the input data exceeds the reference value.

A detailed explanation is as follows.

When the first paralysis occurs, the limb moves normally. However, intensive surveillance is needed in these patients because stroke is likely to recur.

Because of. A method for collecting reference data for a characteristic value of motion per predetermined unit time in a steady state for each individual patient and comparing the measured data with the reference data over time to detect paralysis due to stroke occurrence in an early and sensitive manner Respectively.

Since the extension and bending characteristics change instantaneously, the movement failure judgment unit 200 compares the extension and bending characteristic values for a unit time (for example, 30 minutes) with the sum of the movements for the previous unit time, The occurrence of paralysis is judged.

Here, the reference value means a threshold value of a motion difference per unit time that can be displayed even in the absence of paralysis. That is, the difference of each motion within the reference value means a normal motion, and the difference of each motion that is out of the reference value means that a stroke occurs in the corresponding patient.

The reference value can be set according to the motion characteristics of the human body such as walking motion, beating motion, sitting motion, and the like.

Third Embodiment

The movement failure judgment unit 200 receives the movement characteristic values of the distal ends extracted by the sensing unit 100 and determines whether the sum of the characteristic values of the movement of the distal ends sensed by the sensing unit for a unit time is less than a reference value It plays a role of judgment.

That is, it is possible to detect whether the characteristic value of the movement of the patient for a certain period of time does not reach the reference and whether or not the paralysis has occurred. Since a person feels uncomfortable if they do not move the joint for a certain period of time in a normal state, when there is no paralysis, a person unconsciously moves the body to some extent.

If there is no movement of limbs for a certain period of time (eg, 30 minutes, 1 hour, etc.), the patient may be judged as having paralysis.

Here, the reference value means a minimum value of the sum of characteristic values of motion of each end portion naturally occurring during a unit time based on a normal biomechanical movement.

That is, when the sum of the characteristic values of the motion is represented by the reference value per unit time or more, it means a normal motion in which the paralysis symptom does not occur in the patient. If the sum of the motion values is less than the reference value per unit time, Is generated.

Next, the warning unit 300, the second communication unit 420, and the display unit 500 will be described.

The warning unit 300 alerts the physician or the nurse of the movement disorder of the patient when the movement disorder determination unit 200 determines that the movement disorder is occurring. The warning unit 300 may include a data processing module for processing the data to transmit the data including the movement disorder information to the doctor and the nurse.

The second communication unit 420 includes a wired or wireless transmission / reception module and transmits / receives movement disorder information of the patient to a physician or a nurse at a remote location. The display unit 500 outputs motion disorder information of the patient transmitted from the second communication unit 420 to a screen so that a doctor or a nurse can visually check the motion state of the patient. A configuration for performing various additional functions in addition to the warning unit 300, the second communication unit 420, and the display unit 500 may be included in the early exercise detection apparatus according to the present invention.

A preferred embodiment of the motion-parasitic early sensing device according to the present invention has been described above.

It is to be understood that the above-described embodiments are illustrative in all aspects and should not be construed as limiting, the scope of the invention being indicated by the appended claims rather than the foregoing description, It is intended that all changes and modifications derived from the equivalent concept be included within the scope of the present invention.

100: sensing part
200:
300: Warning section
410: first communication section
420: second communication section
500:

Claims (18)

A sensing portion normally worn on at least one left distal end and at least one right distal end of a user's upper limb or lower limb to sense movement of at least one left distal end and at least one right distal end of the upper limb or lower limb;
A movement failure determination unit for determining whether a difference between a sum of a characteristic value of a motion of the left end detected by the sensing unit for a predetermined time and a sum of a motion characteristic value of the right end exceeds a reference value;
If it is determined by the motion failure determination unit that the sum of the sum of the motion characteristics of the left end and the sum of the motion characteristics of the right end exceeds the reference value, A warning part for warning; And
And a communication unit for transmitting a signal containing the movement disorder information to a doctor, a nurse or a specialist who can confirm the expert,
Wherein the warning unit is characterized in that a characteristic value of movement of the distal end is one of a velocity, an acceleration, and a moving distance of the left and right distal ends.
The method according to claim 1,
Wherein the sensing unit transmits information on movement of the left end and the right end via the communication unit.
delete delete delete delete 3. The method according to any one of claims 1 to 2,
Wherein the left distal end is a distal end corresponding to the right distal end.
A sensing portion normally worn on at least one left distal end and at least one right distal end of a user's upper limb or lower limb to sense movement of at least one left distal end and at least one right distal end of the upper limb or lower limb;
A movement failure determination unit for determining whether the sum of the characteristic values of the motion of the distal end detected by the sensing unit during the unit time and the difference value of the sum of the characteristic values of the motion of the distal end during the next unit time exceeds a reference value;
If the motion failure determination unit determines that the sum of the characteristic values of the motion of the distal end detected by the sensing unit for a unit time and the difference value of the sum of the motion characteristics of the distal end during the next unit time exceeds the reference value A warning unit for warning in real time for early detection of movement disorders; And
And a communication unit for transmitting a signal containing the movement disorder information to a doctor, nurse or a specialist who can confirm the distant doctor.
9. The method of claim 8,
Wherein the sensing unit transmits information on movement of at least one left end and at least one right end of the upper or lower limb sensed by the sensing unit through the communication unit.
delete delete delete 9. The method of claim 8,
The characteristic value of the movement of the distal end is. Speed, acceleration, and movement distance of the subject.


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