KR102193524B1 - Electromyogram measuring device convenient for wearing and using - Google Patents

Abstract

In accordance with the present invention, the present invention is a device for measuring EMG that is convenient to wear and use in which two electrodes are independently in close contact with the living body according to a simple usage of wearing one band, so that EMG can be accurately measured and control of the measurement site is also conveniently configured. As related to, a metal electrode 110 to be in contact with a living body is mounted on one side, and an electrode fixture 120 having a clip 122 on the other side is fixed to both ends of the flexible connection member 130 one by one. The configured electrode pad 100; And the electrode pad 100 is mounted in a manner that has a strip shape surrounding the body part, but has a section divided into two branches in the middle, so that each clip 122 holds the strands 210 of the split section one by one. Configured band 200; Includes.
Research related to the present invention is the Ministry of Trade, Industry and Energy's global design specialized company development project (bio-signal composite monitoring wireless wearable band technology development and design capability enhancement, Bio-signal composite monitoring Wireless wearable band technology development and design capacity enhancement, task number: 10077813 ) Was supported.

Description

[Electromyogram measuring device convenient for wearing and using}

The present invention relates to a device for measuring EMG that is convenient to wear and use, in which two electrodes are independently in close contact with a living body according to a simple method of wearing one band, so that EMG can be accurately measured and control of a measurement site is also conveniently configured. .

The present invention is a patent-applied invention according to the results of research supported by the national R&D project, and the related national R&D project is as follows.

Project name: Global Design specialized company promotion

Project Title: Bio-signal composite monitoring Wireless wearable band technology development and design capacity enhancement

Task number: 10077813

Development period: 2017.04.01.~2019.12.31., 33 months

Ministry of Trade, Industry and Energy (Ministry of Trade, Industry and Energy)

Research Management Institute: Korea Evaluation Institute of Industrial Technology

Organizer: Roemsystem Corp.

Participating Institution: ID.US co., ltd.

In order to measure the EMG, at least two electrodes to detect the EMG signal must be in close contact with the skin of the living body, and the contact state must be stably maintained.If not, the contact impedance between the living body and the electrodes will fluctuate from time to time, so that the EMG It is difficult to accurately measure the signal.

Moreover, since EMG is obtained by detecting a muscle potential signal generated by a muscle during exercise, in order to obtain it accurately, it is necessary to stably maintain the electrode so as not to move even in a living body movement during exercise.

For this reason, in the prior art, a patch-type electrode having a wet electrode that fixes an individual electrode almost as if it is attached to a living body skin, or a band in which a dry electrode is firmly fixed to one side is worn on the living body.

However, wet electrodes are inconvenient to use, are not comfortable to wear, and have to be supplemented with additional tapes and attached to the skin, so they have been limitedly used by professional athletes.

In addition, in the case of using a band, the electrode position is fixed, so it must be individually manufactured and used according to the shape of the living body part to be measured EMG, and the electrode position cannot be changed. Was only used. In order to partially solve this limitation, a plurality of electrodes were installed along the circumferential direction of the band, but it was inconvenient to use, the fit was not good, and the manufacturing cost was high, making it difficult to contribute to the popularization of the EMG measurement device.

In addition, as the electrode is mounted on the inner surface of the band surrounding the living body, there is a limitation in increasing the adhesion strength with the living body skin. Particularly, in the case of vigorous exercise, it is difficult to measure the EMG, and the accuracy is deteriorated. .

Moreover, as multiple electrodes are fixedly installed in one band, the degree of contact between the electrodes is inevitably different due to the influence of the bending of the body part to be worn. For this reason, the contact impedance between the living body and the electrode is different for each electrode. In addition, the amount of change in contact impedance during exercise also differed, which became a factor in accurately measuring EMG.

KR 10-2014-0088390 A 2014.07.10. KR 10-1675577 B1 2016.11.07. KR 10-1529292 B1 2015.06.10. KR 10-0972208 B1 2010.07.19.

Therefore, the object of the present invention is to be easily worn according to the body part to be measured EMG, and it is convenient to use, and while using one band, a plurality of electrodes are individually in close contact with the living body, so that the EMG can be accurately measured. It is to provide an EMG measuring device that is easy to use and.

In order to achieve the above object, the present invention is an electromyogram measuring apparatus, in which a metal electrode 110 to be brought into contact with a living body is mounted on one side, and an electrode fixture provided with a clip 122 on the other side opposite to one side ( An electrode pad 100 configured by fixing one 120 to both ends of the flexible connection member 130; And the electrode pad 100 is mounted in a manner that has a strip shape surrounding the body part, but has a section divided into two branches in the middle, so that each clip 122 holds the strands 210 of the split section one by one. Consisting of, by pressing the other side of the electrode fixture 120 with strands 210, the metal electrode 110 on one side of the band 200 in close contact with the living body; Includes.

According to an embodiment of the present invention, the clip 122 is configured to be closed with an elastic restoring force when the strands 210 of the split section of the band 200 are inserted in an open direction.

According to an embodiment of the present invention, the band 200 is elastically orientated to compress and wear the wrapped body part.

According to an embodiment of the present invention, the band 200 is made of an elastic material in which one side is fixed to the other side by changing its position along the length direction, so that the length surrounding the living body part is adjusted.

According to an embodiment of the present invention, the band 200 is configured to be connected by a connecting member 220 at least at both ends of the two strands 210 that surround the living body at intervals.

According to an embodiment of the present invention, the metal electrode 110 is a dry or wet electrode having a fastening protrusion 111 on a surface opposite to a surface contacting a living body, and the electrode fixture 120 is a fastening protrusion ( 111) is provided with a fastening groove 121 to be inserted and fixed, so that the metal electrode 110 can be replaced and installed.

According to an exemplary embodiment of the present invention, the clips 122 provided one by one on the two electrode fixtures 120 may be opened in a direction opposite to the flexible connection member 130, respectively.

According to an embodiment of the present invention, the electrode pad 100 is a flexible connection member 130 to fix three or more electrode fixtures 120, and the band 200 is an electrode fixture 120 In a manner in which the number of strands divided by the number of or less than the number of the electrode fixture 120 is configured, and each electrode fixture 120 and the clip 122 hold at least one strand, The electrode pad 100 is mounted.

The present invention configured as described above is to fix the two electrodes 110 provided on the electrode pad 100 to the living body with one band 200 that substantially serves as two bands, and the two electrodes 110 The relative position of the body is also configured to be adjusted according to the skin curvature of the body part to be worn, and even if the skin curvature fluctuates during exercise, it adapts to the skin curvature and allows the individual electrodes 110 to be in close contact, so it is convenient to wear and use. While exercising, you can accurately measure your EMG.

1 is a perspective view of an EMG measuring apparatus according to a first embodiment of the present invention.
2 is a top perspective view and a bottom perspective view of the electrode pad 100 from which the metal electrode 110 is separated.
Figure 3 is a wearing state diagram of the EMG measuring device according to the first embodiment of the present invention.
4 is a perspective view of an EMG measuring device according to a second embodiment of the present invention.
Figure 5 is a wearing state diagram of the EMG measuring device according to the second embodiment of the present invention.
6 is a perspective view of an electrode pad 100 in the EMG measuring apparatus according to the third embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings so that those of ordinary skill in the art can easily implement them. If it is determined that a detailed description of a related known function or a known configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

1 is a perspective view of an EMG measuring apparatus according to a first embodiment of the present invention.

2 is a top perspective view (a) and a bottom perspective view (b) of the electrode pad 100 from which the metal electrode 110 is separated.

3 is a wearing state diagram of the EMG measuring device according to the first embodiment of the present invention.

In the electromyography measuring apparatus according to the first embodiment of the present invention, the electrode pad 100 provided with two metal electrodes 110 so as to be able to change their relative position is compressed toward the living body part by the band 200, each By individually compressing the metal electrode 110, it can be tightly fixed to the body worn part, and for this purpose, the electrode pad 100 and the band 200 configured as follows are included.

The electrode pad 100 is configured by fixing one electrode fixture 120 to each end of the flexible connection member 130. Accordingly, the position of the electrode fixtures 120 on both sides can be changed due to the bending of the flexible connecting member 130.

Each of the electrode fixtures 120 includes a metal electrode 110 to be brought into contact with a living body to be detachably provided on one side, and a clip 122 on the other side, which is a side opposite to one side. However, the two electrode fixtures 120 have a plate shape, but have a metal electrode 110 on one side in the same direction, so that the two metal electrodes 110 can be brought into contact with the living body at the same time, Pressing the other side on which the clip 122 is provided is pressed from the outside so that the metal electrode 110 can be brought into close contact with the living body.

The metal electrode 110 is an electrode for detecting an EMG signal at a portion in contact with a living body, and, like a typical electrode for detecting a bio-signal, has a fastening protrusion 111 on a surface opposite to a surface in contact with the living body. In addition, a fastening groove 121 to which the fastening protrusion 111 is fitted is formed on one side of the electrode fixture 120 on one side on which the metal electrode 110 is mounted. Here, the fastening protrusion 111 and the fastening groove 121 may be fitted by a button fastening, a screw fastening, or a magnetic fastening.

In addition, the metal electrode 110 that can be mounted on the electrode fixture 120 may be a dry electrode or a wet electrode for measuring a biological signal, and is detachable, so that any type of electrode can be replaced.

The clip 122 is fixed to one side of the other side of the electrode fixture 120 to the portion connected to the flexible connection member 130, thereby exerting a force to compress toward the other side of the electrode fixture 120 It may be composed of a plate spring, or may be made of a plate material that can be rotated around one side, for example, by a torsion spring to exert a force pressing toward the other side of the electrode fixture 120, and thus, the above The flexible connection member 130 may be opened in a direction opposite to that of the flexible connection member 130, and in the opened state, a pulling force is received by the elastic restoring force. In other words, the clips 122 provided one by one on the two electrode fixtures 120 are each facing each other and open their mouths toward opposite directions, so that the strands 210 of the band 200 to be described later are inserted, The strands 210 may be held by the elastic restoring force.

Meanwhile, the fastening protrusion 111 is composed of an electrically conductive material electrically connected to the metal electrode 110, and an electrically conductive material electrically connected to the fastening protrusion 111 to which the fastening groove 121 is also fitted. It is composed of, so that the fastening groove 121 is electrically connected to the metal electrode 110. Accordingly, an EMG signal to be detected by the metal electrode 110 may be obtained through the fastening groove 121.

And, although not shown in the drawing, through the fastening groove 121 of the electrode fixture 120 electrically connected to the metal electrode 110, the detection circuit to detect the EMG signal, the power or battery required for detection, and by detecting A signal processing means including a communication module for transmitting the obtained EMG to the outside may be built into the electrode fixture 120. Of course, by burying the flexible wire in the flexible connection member 130 or exposing the wire, it is possible to connect the two electrode fixtures 120 to the signal processing means with wires, and the volume of the electrode fixture 120 For reduction, the components of the signal processing means may be distributed and installed on both electrode fixtures 120.

As described above, as the signal processing means is incorporated in the electrode fixture 120, the electrode fixture 120 is shown in the drawings as having a certain volume and thickness, but if the signal processing means is used as the electrode fixture 120 ) If not installed, the electrode fixture 120 can be configured to be smaller and thinner. That is, a signal processing means may be embedded in a case mounted on one side of the band 200 and electrically connected to the fastening groove 121 using an electric wire.

These signal processing means can be connected to the fastening groove 121 by a conventional wire connection, whether installed in the electrode fixture 120 or a separate case fixed to the band 200 and embedded in the case. In addition, since the conventional EMG measuring device for human body wear is also mounted in various ways, it can be mounted with reference to this, so detailed descriptions are omitted.

The band 200 has a band shape to surround the living body part after mounting the electrode pad 100 so as to be placed therein, and has a section divided into two in the middle except for both ends, and the electrode pad ( 100) can be installed by changing its position within the range of the divided section.

Since the two strands 210 parallel to each other by the splitting exist in the split section, the electrode pad 100 can be mounted on the band 200 in a manner that each clip 122 holds the strand one by one.

However, the two strands 210 of the divided section are to wrap the living body parts side by side at intervals, and in addition, they are individually shrunk to be worn by compressing the wrapped body parts.

According to a specific embodiment, the band 200 is configured such that the ends of the two strands 210, which are arranged side by side at intervals, are connected to each other by the connector 220, so that the portion fixed to the connector 220 is All sections excepted were made into the divided sections. Of course, when each of the two strands 210 is opened, an elastic restoring force is accumulated and the force is applied in a shrinking direction. It is obvious that the two strands 210 having the power to shrivel in this way can be made of, for example, a ring made of a metal material or a plastic material, so a detailed description of the material characteristics will be omitted. On the other hand, it is good to cover the two strands 210 with a material that improves the fit on the human skin.

In addition, according to a specific embodiment, each strand 210 is formed in a plate shape having a long and predetermined width so as to surface contact and press the electrode fixture 120, so that the plate-shaped clip 122 is more stable. It can be gripped with.

Thus, by allowing the two clips 122 of the electrode pad 100 to grasp each strand 210, the electrode pad 100 can be mounted in the divided section of the band 200, The two electrode fixtures 120 provided on the electrode pad 100 may be individually compressed into two strands 210 toward the living body region. As a result, the band 200 can freely select the position of the electrode pad 100 even if it is not positioned while rotating along the circumference of the body part to be wrapped, and relative position variation is free due to the bending of the flexible connecting member 130. The metal electrode 110 provided in each electrode fixture 120 by the two electrode fixtures 120 may be individually in close contact with the living body.

4 is a perspective view of an EMG measuring apparatus according to a second embodiment of the present invention.

5 is a diagram illustrating a wearing state of an EMG measuring device according to a second embodiment of the present invention.

According to the second embodiment, the band 200 is provided with one locking part 230 on one of the end connectors 220 on both sides and the other locking part 231 on the other, so that one locking part 230 ) And the other side locking part 231 may be coupled.

For example, one side locking part 230 is composed of A-type velcro, and the other side locking part 231 is composed of B-type velcro formed long along the length direction, so that one side locking part 230 can be coupled. The part of the other locking part 231 is changed in position along the length direction to be combined, so that it is worn according to the thickness of the body part to be worn.

Here, the band 200 is made of an elastic material, so that the length in the circumferential direction surrounding the living body part is adjusted by coupling between one locking part 230 and the other locking part 231. It is good to have it pressed toward the area.

The EMG measuring apparatus according to the second embodiment of the present invention configured as described above can maintain a state in which the electrode pad 100 is stably brought into close contact with the body worn portion even in a vigorous exercise situation.

6 is a perspective view of an electrode pad 100 in the EMG measuring apparatus according to the third embodiment of the present invention.

Referring to FIG. 6, it is shown that the electrode pad 100 may include three or more electrode fixtures 120.

That is, the plurality of electrode fixtures 120 are configured to be connected to one flexible connection member 130, respectively, so that they are individually movable.

When measuring the EMG, three or more electrodes can be used, and three or more electrodes can be used for measuring biological signals other than the EMG. Accordingly, in order to mount three or more electrodes, the electrode pad 100 having three or more electrode fixtures 120 may be configured to be mounted on the band 200.

Here, the band 200 has at least as many divided sections as the number of electrode fixtures 120, so that each clip 122 grasps the strands 210 of the split section one by one. The electrode is configured to be mounted or has a section divided into strands less than the number of electrode fixtures 120, so that at least one strand is gripped by two or more electrode pads 100 and clips 122. It can be configured to mount the pad 100. Even in this case, by the bending of the flexible connecting member 130, each electrode fixture 120 can be evenly brought into close contact with the living body skin.

Although shown and described in specific embodiments to illustrate the technical idea of the present invention, the present invention is not limited to the same configuration and operation as the specific embodiment as described above, and various modifications are within the scope of the present invention. Can be carried out in Therefore, such modifications should be regarded as belonging to the scope of the present invention, and the scope of the present invention should be determined by the claims to be described later.

100: electrode pad
110: metal electrode 111: fastening projection
120: electrode fixture 121: fastening groove 122: clip
130: flexible connecting member
200: band
210: strand
220: end connector
230: one side locking portion 231: the other side locking portion

Claims (8)

An electrode pad configured by mounting a metal electrode 110 to be in contact with a living body on one side, and fixing an electrode fixture 120 having a clip 122 on the other side to both ends of the flexible connection member 130 one by one ( 100); And
It is configured to mount the electrode pad 100 in a manner that has a strip shape surrounding the body part, but has a section divided into two branches in the middle, so that each clip 122 holds the strands 210 of the split section one by one. Band 200;
Including
EMG measuring device. The method of claim 1,
The clip 122 is
When the strands 210 of the split section of the band 200 are inserted in the open direction,
EMG measuring device. The method of claim 1,
The band 200 is
It is made to be elastically cut and worn by compressing the wrapped body part.
EMG measuring device. The method of claim 1,
The band 200 is
Consisting of an elastic material that allows one side to be fixed to the other side by changing its position along the length direction to adjust the length surrounding the living body
EMG measuring device. The method of claim 1,
The band 200 is
Two strands 210 that wrap the living body part side by side at intervals are connected by a connector 220 at least at both ends.
EMG measuring device. The method of claim 1,
The metal electrode 110 is
It is a dry or wet electrode having a fastening protrusion 111 on a surface opposite to the surface in contact with the living body,
The electrode fixture 120 is
A fastening groove 121 to be fixed by inserting the fastening protrusion 111 is provided, so that the metal electrode 110 can be replaced and installed.
EMG measuring device. The method of claim 1,
Clip 122 provided one by one on the two electrode fixtures 120
Each of the flexible connection members 130 that can be opened toward the opposite direction
EMG measuring device. The method of claim 1,
The electrode pad 100 is
Three or more electrode fixtures 120 are fixed to one flexible connection member 130,
The band 200 is
It is configured to have as many strands as the number of electrode fixtures 120 or fewer strands than the number of electrode fixtures 120, and each electrode fixture 120, clip 122 has at least one strand In a manner of gripping, the electrode pad 100 is mounted
EMG measuring device.

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