KR20040024640A - Electromyogram sensor a line take off adhesion apparatus and method - Google Patents

Abstract

PURPOSE: An apparatus and a method for attaching and detaching an EMG(electromyogram) sensor array are provided to consult a user's convenience by attaching or detaching the EMG sensor to or from a particular part of a human body. CONSTITUTION: An apparatus for coupling and decoupling an EMG sensor includes an EMG sensor(10a,10b), a differential amplifier(20), a sensor stopper(30), a sensor position control unit(40), a sensor signal line(50), and a sensor body(60). The EMG sensor(10a,10b) is attached to a particular part of a human body in order to sense an EMG signal. The differential amplifier(20) is used for calculating an average signal value of EMG signals and amplifying the average signal value. The sensor stopper(30) is used for controlling a position and a direction of the EMG sensor by supporting an EMG sensor system. The sensor position control unit(40) fixes the EMG sensor system to sense correctly the EMG signals of the EMG sensor. The sensor signal line(50) is used for providing the amplified signal of the differential amplifier to a band type sensor fixing system. The sensor body(60) is used for supporting the EMG sensor.

Description

EMG Sensor Heat Desorption Apparatus and Method {ELECTROMYOGRAM SENSOR A LINE TAKE OFF ADHESION APPARATUS AND METHOD}

The present invention relates to an apparatus and method for attaching and removing an EMG sensor train, and in particular, in a Human Computer Interface (HCI) using an EMG signal, an apparatus for easily attaching and attaching an EMG sensor train to a specific part of a body. And to a method.

In general, for EMG-based HCI, the EMG sensor train should be easily detachable / attached to a specific part of the body.

The EMG sensor train may exclude the noise effect of the EMG signal measured only when it is in close contact with the skin. The method using a double-sided tape or a single-sided tape that has been used to contact the skin by using an EMG sensor train, or a hospital Has used a method of attachment using a compressor used for ECG inspection, but these methods have a disadvantage in that they are very cumbersome in detachment.

In particular, HCI is used only when it requires computer operation, not always worn on the body. Therefore, in order to apply the EMG signal to the HCI, the EMG sensor string should be easily attached and detached. In addition, each individual has a difference in the area where the EMG signal is well detected, there is a difficulty of EMG-based HCI.

As such, known techniques for EMG sensor thermal desorption / attachment devices include “Electrical apparatus for medical treatment using EMG envelope signal”, filed Feb. 25, 1999, 99301408.3, and Aug. 11, 2000, 2000-046703. The present invention discloses a method and system for measuring muscle fatigue using EMG intermediate frequency changes, and an "optimum muscle exercise alarm system and method thereof" filed January 30, 1998, 1998-002601.

As described above, the disclosed prior art will be described in detail, the "Electrical apparatus for medical treatment using EMG envelope signal" filed as 99301408.3 has a low burden of signal processing and has an electrode that the patient can easily recognize the treatment state One medical electrotherapy device.

That is, the medical electrotherapy device relates to a medical electrotherapy device that performs signal processing by using an envelope of an EMG signal, and operates by being coupled to an electrode used in contact with a part of a patient's body or inserted into a body cavity. An apparatus for medical electrotherapy comprising: an EMG signal processor including an envelope detector for detecting an envelope of an EMG signal transmitted from an electrode and outputting an EMG envelope signal; A display unit for displaying information on medical treatment based on the EMG envelope signal; An operation unit; A memory that stores information about a predetermined therapeutic target waveform GOAL-EMG; A stimulus signal generator for generating a stimulus signal and transmitting the stimulus signal to the electrode; And a main control unit for controlling these operations. In addition, by installing a universal connector in the middle of the cable for connecting the electrode, various types of electrodes can be connected to the main body of the device. Therefore, it is possible to reduce the manufacturing cost by miniaturizing the medical electrotherapy device, it is a technology that can increase the treatment efficiency by allowing the patient to easily recognize the treatment state when performing the biofeedback treatment for urinary incontinence treatment.

Next, "Method and system for measuring muscle fatigue using EMG intermediate frequency change", filed as 2000-046703, relates to a method and system for measuring fatigue of muscle in motion, and to measure surface EMG, EMG Storing the signal, obtaining median frequency (MDF) data at a constant epoch through frequency spectrum analysis (PSA) from the stored signal, and performing PSA on the obtained MDF data Confirming the main signal frequency band, obtaining new MDF data by applying a digital filter to pass only the main signal frequency band of the MDF data, and reducing the new MDF data as the fatigue occurs. The method and system comprising the step of outputting the index for determining muscle fatigue calculated from the data It will be the fatigue of the muscles to be objectively measured and monitored. The method of the present invention is particularly effective in reducing the noise generated during dynamic contraction (dynamic contraction) exercise than the conventional method, so that users or patients can easily target all kinds of exercise in sports related institutions or physical therapy rooms. It is a technology that allows you to monitor the degree of fatigue of the muscle in real time while carrying it, maintaining the strength of exercise that is appropriate for the user, and checking the training status of the muscle.

Next, "Optimal muscle momentum alarm system and method thereof" filed in 1998-002601 relates to an optimal muscle momentum alarm system and method for allowing each individual to obtain the best exercise effect when exercising muscle strengthening.

That is, the EMG measuring unit, spectrum analyzer and alarm sound generating unit is provided, the EMG measuring unit detects EMG changes in the skin surface EMG of the muscles during the strengthening exercise, the spectrum analyzer measures the frequency of the EMG signal measured by the EMG measuring unit If the spectrum of the EMG signal moves to the frequency range below the threshold set based on the optimal muscle movement, the alarm signal is output and the alarm sound signal is output from the spectrum analyzer. When the alarm is generated to inform the stop of the exercise, the user stops the muscle strengthening exercise alarm sound generated from the alarm sound generator. As described above, the present invention allows each individual to judge objectively on the basis of scientific facts instead of subjectively determining the optimum amount of exercise suitable for them when performing the muscle strengthening exercise. It is a technique that can obtain a variety of exercise effects, if each individual changes the threshold of spectral shift according to their exercise goals.

As described above, when looking at the technology disclosed in the prior patent, in order to apply the EMG signal to the HCI, it is necessary to detach / attach to a specific part of the body. There is still a problem that there is a difficulty of EMG-based HCI due to the difference in the well-detected region.

Accordingly, the present invention has been made to solve the above-described problems, the object of which is to easily remove / attach the EMG sensor train to a specific body part for the HCI, and also to adjust the position of the EMG sensor system to the user The present invention provides an apparatus and a method for attaching and removing the EMG sensor heat.

In the present invention to achieve the above object is linked to the band-type sensor fixing system, the EMG sensor system for detaching the EMG sensor train is an EMG sensor for detecting the EMG signal in close contact with the skin surface of a specific part of the body; A differential amplifier that calculates an average EMG signal value using a difference between EMG signals provided from an EMG sensor, and amplifies the calculated EMG signal value; A sensor stopper for supporting the EMG sensor system so as not to fall downward when the EMG sensor system and the band-type sensor fixing system are coupled to each other, and controlling a position and a direction to move the EMG sensor finely; When combining the EMG sensor system and the band-type sensor fixing system, the sensor position adjusting unit for fixing the EMG sensor system to adjust to detect the accurate EMG signal in the EMG sensor; A sensor signal line sensed by the EMG sensor and connected to provide the EMG signal value amplified by the differential amplifier to the band-type sensor fixing system; It characterized in that it comprises a sensor unit body for supporting the EMG sensor does not move.

In addition, the band-type sensor fixing system which is linked to the EMG sensor system in the present invention for achieving the above-described object, and facilitates the detachable attachment of the EMG sensor system to the body part has two EMG sensor trains in the EMG sensor system. Fixing body for attaching and supporting the skin surface of the specific part of the body; A plurality of grooves are formed in the body of the fixing part, and the sensor fixing hole trains are configured to measure the EMG sensor values step by step while moving the straight line between the holes by inserting the sensor stopper in the EMG sensor system in a certain groove among the grooves. ; Band adapter for attaching the fixing body does not move; A signal connection terminal used to connect an EMG signal value obtained in an EMG sensor system to a computer; And a connection line connecting the band sensor fixing system to the computer.

In addition, in the present invention for achieving the above object, the method of the EMG sensor thermal detachment method in the state coupled between the EMG sensor system and the band-type sensor fixing system is the bottom surface of the EMG sensor in the EMG sensor system skin surface of a specific part of the body Inserting the sensor stopper in the EMG sensor system into a desired groove in the row of sensor fixing holes in the band-type sensor fixing system after being in close contact with the device; Winding the body around the body so that the sensor stopper is not separated by using the fixing unit body and the band adapter in the band-type sensor fixing system; Connecting a sensor signal line in the EMG sensor system to a signal connection terminal in the band-type sensor fixing system; Two EMG sensor trains in the EMG sensor system are in close contact with the skin surface of a specific body part to detect EMG signals and provide them to the differential amplifiers in the EMG sensor system; Calculating an average EMG signal value using a difference between EMG signals provided from two EMG sensor strings, amplifying the calculated EMG signal value, and providing it to the signal connection terminal; When providing the EMG signal values collected at the signal connection terminal to the computer, observing the EMG signal detected while moving the sensor stopper fitted in the sensor fixing hole row in the direction of the desired position while watching the computer; The EMG signal may include recording a hole number and an angle written in a specific flaw in a sensor fixation hole row that generates a high level EMG signal as the greatest level is generated in the muscle generating the body movement; If the position of the EMG sensor system and the band-type sensor fixing system changes, it characterized in that it comprises the step of setting the position of the EMG sensor string based on its recorded hole number and angle and repeating the process.

1 is a diagram illustrating an EMG sensor system for obtaining an EMG signal according to the present invention;

FIG. 2 is a view illustrating a band-type sensor fixing system that helps to easily attach or detach the EMG sensor system shown in FIG. 1 to a body part.

3 is a view showing an EMG sensor thermal detachment method according to the present invention.

<Description of the symbols for the main parts of the drawings>

10: EMG sensor 20: Differential amplifier

30: sensor stopper 40: sensor position adjustment unit

50: sensor signal line 60: sensor unit body

100: fixing part body 200: sensor fixing hole row

300: band adapter 400: signal connection terminal

500: connecting line

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1A to 1D are diagrams showing an EMG sensor system for acquiring an EMG signal according to the present invention. More specifically, FIG. 1A is a side view, FIG. 1B is a right side view of an EMG sensor system, and FIG. 1C is FIG. 1D is a top view of the EMG sensor system, and shows an EMG sensor 10, a differential amplifier 20, a sensor stopper 30, and a sensor position adjusting unit 40. ), A sensor signal line 50, and a sensor unit body 60.

The EMG sensor 10 is divided into two EMG sensor trains 10a and 10b, and the two EMG sensor trains 10a and 10b are adhered to the skin surface of a specific part of the body to detect an EMG signal and thus the differential amplifier 20 To provide.

The differential amplifier 20 calculates an average EMG signal value using a difference between EMG signals provided from two EMG sensor strings 10a and 10b, amplifies the calculated EMG signal value, and then amplifies the EMG signal through the sensor signal line 50. The signal connection terminal 400 in the band-type sensor fixing system shown in FIG. 2 is provided.

When the sensor stopper 30 is coupled between the EMG sensor system shown in FIG. 1 and the band-type sensor fixing system shown in FIG. 2, the sensor stopper 30 serves to support the EMG sensor system of FIG. 1 so as not to fall downward. The position and the direction are controlled to move the fine 10.

The sensor position adjusting unit 40 has a sawtooth shape, and when the band-type sensor fixing system shown in FIG. 2 is attached to the EMG sensor system of FIG. 1, the EMG sensor system of FIG. 1 is fixed to correct the EMG sensor 10. Adjust to detect EMG signals.

The sensor signal line 50 is sensed by the EMG sensor 10 and provided to the signal connection terminal 400 in the band-type sensor fixing system shown in FIG. 2 to provide the EMG signal value amplified by the differential amplifier 20. It serves as a connection terminal.

The sensor unit body 60 serves to support the EMG sensor 10 not to move.

FIG. 2 is a view illustrating a band-type sensor fixing system that facilitates attachment and detachment of the EMG sensor system shown in FIG. 1 to a body part, and includes a fixing unit body 100, a sensor fixing hole row 200, and the like. , A band adapter 300, a signal connection terminal 400, and a connection line 500.

The fixing part body 100 is to attach and support the two EMG sensor strings 10a and 10b to the skin surface of a specific part of the body. The fixing part body 100 is made of an elastic member (for example, rubber) to bend freely and to the body. It is made to adhere well.

The sensor fixing hole rows 200 are grooved at equal angle intervals in the fixing body 100, and inserted into specific grooves in the sensor fixing hole rows 200 using the sensor stopper 30 of FIG. 1. It is configured to measure while adjusting the EMG sensor value step by step while moving along the straight passage.

The band adapter 300 is a tape for band bonding in the form of a velcro tape (velcro tape), and serves to attach the fixing part body 100 so as not to move through the band adapter 300.

The signal connection terminal 400 is a terminal used to connect the EMG signal value obtained in the EMG sensor system of FIG. 1 to an external device such as a computer (for example, an oscilloscope, an HCI device), and the connection line 500 of FIG. 2. It is a line connecting the band sensor fixing system and the computer.

Based on the flowchart of FIG. 3, the EMG sensor thermal detachment method according to the present invention will be described in more detail.

First, the bottom surface of the EMG sensor 10 in the EMG sensor system of FIG. 1 closely adheres to the skin surface of a specific body part, and then the desired groove of the sensor fixing hole row 200 in the band-type sensor fixing system of FIG. The sensor stopper 30 of 1 is inserted (step 301).

At this time, the position where the sensor stopper 30 of FIG. 1 is inserted is selected and inserted to select an appropriate position in consideration of this because the position of a specific muscle is slightly different for each individual.

Thereafter, using the fixing unit body 100 and the band adapter 300 in the band-type sensor fixing system of FIG. 2, the sensor stopper 30 of FIG. 1 is wound around the body so as not to be detached (step 302), and the sensor The signal line 50 is connected to the signal connection terminal 400 (step 303).

Then, the two EMG sensor trains 10a and 10b in the EMG sensor system of FIG. 1 are in close contact with the skin surface of the specific body and detect the EMG signal and provide it to the differential amplifier 20 (step 304).

The differential amplifier 20 calculates an average EMG signal value using a difference between EMG signals provided from two EMG sensor strings 10a and 10b, amplifies the calculated EMG signal value, and then amplifies the EMG signal through the sensor signal line 50. The signal connection terminal 400 in the band-type sensor fixing system shown in FIG. 2 is provided (step 305).

Thereafter, the EMG signal values collected in the signal connection terminal 400 in the band-type sensor fixing system of FIG. 2 are provided to a computer (eg, an oscilloscope and an HCI device) connected through the connection line 500 (step 306).

While watching the computer, the operator continuously observes the EMG signal detected while moving the sensor stopper 30 inserted in the sensor fixing hole row 200 in the direction of the desired position (step 307).

That is, as the EMG signal having a high level is generated in the muscle generating the body movement, the hole number and angle written in a specific flaw among the sensor fixing hole rows 200 which generate the EMG signal having a high level are recorded (step 308). ).

Then, it is determined whether the position of the EMG sensor system and the band-type sensor fixing system is changed by another user (step 309).

In the determination step 309, if the position does not change because other users do not use, after using the computer, the band-shaped sensor fixing system of FIG. 2 and the EMG sensor system of FIG. (Step 310).

On the other hand, in the determination step 309, when the position is changed by another user, the position of the EMG sensor strings 10a and 10b is set based on the hole number and angle already recorded and the above-described steps (step 301 to step 308 are repeated (step 311).

As described above, the present invention easily removes / attaches the EMG sensor train to a specific part of the body for the HCI, and also adjusts the position of the EMG sensor system to the user, thereby bringing the individual sensor attachment site to the same position as previously used. It can be easily set and fixed to provide simplicity and accuracy to the user's use, and there is an effect of freely adjusting the fine position and direction of the sensor even when the sensor is attached.

Claims (10)

In the EMG sensor system interlocked with the band-type sensor fixing system, which removes the EMG sensor train, An EMG sensor which is in close contact with the skin surface of a specific part of the body and detects an EMG signal; A differential amplifier that calculates an average EMG signal value using a difference between EMG signals provided from the EMG sensor, and amplifies the calculated EMG signal value; A sensor stopper which supports the EMG sensor system so as not to fall downward when the EMG sensor system and the band-type sensor fixing system are coupled to each other, and controls a position and a direction to move the EMG sensor finely; A sensor position adjusting unit configured to adjust the EMG sensor system to detect an accurate EMG signal by fixing the EMG sensor system when the EMG sensor system and the band type sensor fixing system are combined; A sensor signal line sensed by the EMG sensor and connected to provide the EMG signal value amplified by the differential amplifier to the band-type sensor fixing system; EMG sensor heat detachable device characterized in that it comprises a sensor unit body for supporting the EMG sensor does not move. The method of claim 1, The EMG sensor has two EMG sensor strings while detecting the two EMG signals, characterized in that the EMG sensor string detachable device. The method of claim 1, The sensor position adjusting unit is configured in the form of a sawtooth EMG sensor heat detachable device, characterized in that for fixing the position of the EMG sensor system. In the band-type sensor fixing system that is linked to the EMG sensor system, to facilitate the detachment of the EMG sensor system to the body part, A fixing body for attaching and supporting two EMG sensor trains in the EMG sensor system to the skin surface of a specific part of the body; A plurality of grooves are formed in the fixing part body, and the sensor is configured to measure the EMG sensor values step by step while moving along a straight passage between the holes by inserting a sensor stopper in the EMG sensor system in a specific one of the grooves. Fixing hole row; Band adapter for attaching the fixing unit body does not move; A signal connection terminal used to connect an EMG signal value obtained in the EMG sensor system to a computer; EMG sensor heat detachable device characterized in that it comprises a connection line for connecting the band-type sensor fixing system and the computer. The method of claim 4, wherein The fixing unit body is made of a material of the elastic member, EMG sensor heat detachable device characterized in that the bending is made freely and in close contact with the body. The method of claim 4, wherein The sensor fixing hole array is an EMG sensor array detachable device, characterized in that the grooves are dug at equal intervals. The method of claim 4, wherein The band bonder is an EMG sensor thermal detachment apparatus, characterized in that the tape for band bonding in the form of a velcro tape (velcro tape). In the EMG sensor thermal detachment method in the state coupled between the EMG sensor system and the band-type sensor fixing system, Contacting the bottom surface of the EMG sensor in the EMG sensor system with the skin surface of a specific part of the body, and then inserting the sensor stopper in the EMG sensor system into a desired groove in a row of sensor fixing holes in the band-type sensor fixing system; Winding the body around the body so that the sensor stopper is not separated by using a fixing unit body and a band adapter in the band-type sensor fixing system; Connecting a sensor signal line in the EMG sensor system to a signal connection terminal in the band-type sensor fixing system; Two EMG sensor trains in the EMG sensor system are in close contact with the skin surface of a specific body part to detect an EMG signal and provide the EMG signal to a differential amplifier in the EMG sensor system; Calculating an average EMG signal value using a difference between EMG signals provided from the two EMG sensor strings, and amplifying the calculated EMG signal values and providing them to a signal connection terminal; Observing the EMG signal detected while moving the sensor stopper fitted in the sensor fixing hole row in the direction of a desired position, while watching the EMG signal value collected in the signal connection terminal to the computer; Recording, by the EMG signal, a hole number and an angle written in a specific flaw in the sensor fixation hole row that generates the EMG signal having the greater level as the greatest level is generated in the muscle generating the body movement; When the position of the EMG sensor system and the band-type sensor fixing system is changed, setting the position of the EMG sensor string based on the recorded hole number and angle, and repeating the process. EMG sensor heat detachment method The method of claim 8, The position where the sensor stopper is inserted is selected by selecting an appropriate position because the position of a particular muscle is different for each individual. The method of claim 8, If the position of the EMG sensor system and the band-type sensor fixing system does not change, after the use of the computer, the EMG sensor characterized in that the band-type sensor fixing system and the EMG sensor system is separated from a specific part of the body How to attach and remove sensor heat.