KR102270557B1 - Patch attached to human body for amplifying bioelectric signals - Google Patents

Abstract

The present invention relates to a body-attachable biosignal amplification patch, and more particularly, to a body-attachable patch that enables more accurate biosignal measurement by amplifying a biosignal reflected by a user or a measurement target.

Description

Body-attached biosignal amplification patch {PATCH ATTACHED TO HUMAN BODY FOR AMPLIFYING BIOELECTRIC SIGNALS}

The present invention relates to a body-attachable biosignal amplification patch, and more particularly, to a body-attachable patch that enables more accurate biosignal measurement by amplifying a biosignal reflected by a user or a measurement target.

Recently, as the quality of life improves and the aging process rapidly progresses, the desire for disease-free longevity is growing, and interest in health is increasing day by day. There are various ways to maintain and improve health, such as exercise and diet, but it is most important to manage sleep, which occupies about 25% of the day. For this reason, research to improve the quality of sleep has been actively conducted in recent years.

In order to improve the quality of sleep, it is necessary to analyze the sleep state first. It is possible to maintain a healthy body by analyzing the sleep state of the user or measurement target and managing it systematically by documenting it. In order to analyze the sleep state, it will be basic to measure various bio-information such as respiration rate, heart rate, movement (toss and turns) and sleep time during sleep.

However, mobilizing medical equipment to measure biometric information such as respiration rate or heart rate is not only cumbersome, but is accompanied by inconvenience such as having to be attached to the body to measure biometric information.

In this case, the inconvenience and inconvenience caused by measuring biometric information in order to improve the quality of sleep may result in rather impairing the quality of sleep.

Accordingly, recently, a non-contact biosignal measuring device has been proposed to measure a respiration rate without disturbing sleep of a user or a measurement target.

The conventional method is generally based on the principle of irradiating a microwave to a user and separating the respiration signal from the reflected signal.

At this time, since the respiration signal is generally similar to the Sin or Cos waveform, it is conventionally separated into the Sin or Cos waveform constituting the respiration signal using the Fourier transform method, which is a frequency analysis technique. In some cases, the respiration of the user or the measurement target When the waveform of the signal is not similar to the Sin or Cos waveform, there is a problem in that it is difficult to determine the exact periodicity.

In addition, in the case of the conventional method, when a user or a measurement target is located at a distant location and a breathing signal is weakly received, a case where a signal at a noise location is mistaken for a breathing signal frequently occurred. In addition, when a dynamic object (clutter) indicating movement exists in the vicinity of a user or a measurement target, a signal reflected from the dynamic object may be mistaken for a breathing signal.

The present invention provides a body-mounted biosignal amplification patch for accurately measuring the respiration signal of a user or measurement object even under a noise environment in which a user or a measurement object is located in a remote location or a dynamic object indicating movement exists in the vicinity of the user or measurement object. aims to provide

In order to solve the above problem,

According to one aspect of the present invention, it is possible to provide a body-attachable biosignal amplification patch including a protective member, an adhesive member, and a radio signal reflection member.

The radio signal may provide a body-mountable biosignal amplification patch that is IR-UWB (impulse radio ultra wideband).

The radio signal reflection member may provide a body-mountable biosignal amplification patch made of at least one selected from aluminum, silver, and platinum.

The protective member may provide a body-attachable biosignal amplification patch which is at least one selected from a woven fabric, a nonwoven fabric, and a felt.

The adhesive member may provide a body-attachable biosignal amplification patch which is at least one selected from acrylic, silicone, vinyl ester, vinyl ether, and urethane pressure-sensitive adhesives.

It is possible to provide a body-attachable biosignal amplification patch further comprising a release member under the adhesive member.

The release member may provide a body-attachable biosignal amplification patch that is at least one selected from polyethylene terephthalate (PET), polyethylene naphthalate (PEN), and polycarbonate (PC).

The radio signal reflection member may provide a body-mountable biosignal amplification patch provided between the adhesive member and the release member.

It is possible to provide a body-mountable biosignal amplification patch in which a plurality of radio wave signal reflecting members are spaced apart from each other at a predetermined interval and arranged in parallel in a line under the adhesive member.

According to the present invention, the bio-propagation signal indicating the periodicity of the user or the measurement object is captured even under a noise environment in which the user or the measurement object is located at a distance or there is a dynamic object indicating movement around the user or the measurement object, and from this It is possible to accurately measure the respiratory rate.

In addition, according to the present invention, it is possible for the user or the measurement object to continuously monitor the health status of the user or measurement object regardless of time and place to take appropriate measures when an emergency situation occurs.

In addition, according to the present invention, it is possible to receive more accurate biosignal data without discomfort or foreign body sensation in the movement of the user or the measurement target.

In addition, according to the present invention, it is possible to simultaneously acquire bio-propagation signals of two or more users or measurement objects.

1 shows the extraction result of a general biosignal.
2 shows the extraction result of the biosignal according to an embodiment of the present invention.
3 schematically shows a body-attachable biosignal amplification patch according to an embodiment of the present invention.
4 schematically shows a body-mountable biosignal amplification patch according to another embodiment of the present invention.
5 schematically shows a body-attachable biosignal amplification patch according to another embodiment of the present invention.
6 schematically shows a body-mountable biosignal amplification patch according to another embodiment of the present invention.
7 schematically shows a body-mountable biosignal amplification patch according to another embodiment of the present invention.

Advantages and features of the present invention, and a method of achieving them will become clear with reference to the following examples. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various different forms, Only the present embodiments are provided so that the disclosure of the present invention is complete, and to fully inform those of ordinary skill in the art to which the present invention belongs, the scope of the invention, the present invention is defined by the scope of the claims will only be Like reference numerals refer to like elements throughout.

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

The present invention relates to a body-mountable biosignal amplification patch comprising a protective member, an adhesive member, and a radio signal reflection member, and a measurement target intended to measure a biological signal by a user or a measurement system (hereinafter referred to as a user and a measurement target). It is a device that is attached to the measurement target) and amplifies biological signals such as the breathing pattern, heart rate pattern, or respiration rate of the measurement target.

In particular, the present invention makes it possible to accurately capture a bio-propagation signal indicating the periodicity of a measurement object, even under a noise environment in which a measurement object is located at a distance or a dynamic object exhibiting motion exists in the vicinity of the measurement object, and a plurality of measurement objects It is possible to distinguish and read biosignals extracted from

The body-mountable biosignal amplification patch of the present invention can amplify a radio signal of a real-time measurement system built based on, for example, IR-UWB (impulse radio ultra wideband) communication technology.

IR-UWB communication technology detects the reflected radio signal from the measurement target with higher accuracy compared to narrowband signals by using a very narrow impulse ranging from several ns to several hundreds of ps, and effectively extracts the biological radio signal from it. There are advantages to doing.

1 is a graph of the extraction result of a general biosignal, for example, a respiration signal is measured according to a real-time wireless respiration measurement system.

This is to determine the optimal respiration position from the radio signal reflected by the measurement target, effectively extract the respiration signal induced by respiration from the radio signal reflected from the position, and measure the respiration pattern and/or respiration rate therefrom characterized in that

However, since the intensity of the radio signal reflected from the measurement target is not strong, it is difficult to noise-process the signal reflected and received from the static object originally existing in the detection area.

In addition, FIG. 1 shows a graph by measuring A and B, which are different measurement objects, respectively, and it can be seen that the respiration signals of A and B are almost similar. In particular, when different measurement objects are spaced apart at a similar distance to the signal measurement system, it is difficult to distinguish the measurement objects, so the signal is disturbed and measurement is impossible, or the signal of one measurement object is preset as a dynamic object of the background signal and separate It is cumbersome to measure with

Accordingly, the above problem can be solved by attaching the patch according to the present invention to the measurement target from which the biosignal is to be extracted.

FIG. 2 is a graph showing the extraction result of biosignals according to an embodiment of the present invention, and in the measurement objects A and B of FIG. 1 , the patch according to the present invention is attached to the measurement object A and measured at the same time.

As shown in Figure 2, the respiration signal of the measurement object A was amplified compared to the signal A of Figure 1, and it is clearly distinguished from the respiration signal of the measurement object B, so that even when measured at the same time, the signal can be extracted separately without signal interference with each other.

Therefore, by attaching the patch according to the present invention to a measurement object, a bio-propagation signal indicating the periodicity of the measurement object even under a noise environment in which a non-measurement object is located at a distance or a dynamic object indicating movement exists in the vicinity of a user or a measurement object can be captured, and it is possible to simultaneously acquire bio-propagation signals of two or more measurement objects.

The radio signal reflection member included in the body-mountable biosignal amplification patch according to an aspect of the present invention is a means for directly amplifying the biopropagation signal. Metals having a relatively high reflectance are advantageous and at least selected from aluminum, silver and platinum. It may be one, and most preferably, it may be aluminum.

The radio signal reflection member may be attached to the surface of the measurement object in a contact or non-contact state, and may be adjusted in shape and size to optimize signal strength according to the measurement object.

Specifically, the thickness of the radio signal reflection member may be 0.5 μm to 10 μm. If the thickness is less than 0.5 ㎛, there is a risk of damage by the movement of the measurement target during attachment due to poor durability of the member, and if the thickness exceeds 10 ㎛, there is a problem in that the manufacturing cost is sharply increased compared to the amplification efficiency.

In addition, the protective member may be at least one selected from a woven fabric, a nonwoven fabric, and a felt. The protective member may be located at the outermost part when the patch is attached to the measurement target. At this time, it prevents damage to the radio signal reflection member, and because it is a breathable material, even if it comes into contact with the skin of the measurement target, skin necrosis when used for a long time is prevented. there is no risk of occurrence

The adhesive member may include at least one selected from acryl-based, silicone-based, vinyl ester-based, vinyl ether-based, and urethane-based pressure-sensitive adhesives, and has convenient attachment and detachment adhesiveness that can be reused without damaging the surface of the measurement target when removed Absence is not limited.

In particular, the adhesive member may further include a softening agent. By including the softener, the adhesive force may be controlled, and skin irritation may be reduced.

The softening agent may be included in an amount of 30 to 50% by weight based on the total weight of the adhesive member, and by satisfying the above ratio, skin pain is reduced during removal and residual adhesive can be adjusted to be less even after long-time use.

In addition, the adhesive member may include other additives as needed. The other additives are not particularly limited as long as they are conventional additives that can be mixed with the pressure-sensitive adhesive. For example, in the case of adhering to the skin, a UV absorber, a solubilizer, a transdermal absorption accelerator, a filler, a colorant, a plasticizer, and the like may be mentioned.

The thickness of the adhesive member may be 1 to 50 μm. If the thickness of the adhesive member is less than 1 ㎛, the adhesiveness may be insufficient on the surface of the measurement target, for example, skin, worn clothes, etc., and if it exceeds 50 ㎛, discomfort increases during application or surface damage or pain when removed may cause

The patch of the present invention may further include a release member under the adhesive member included in the patch, wherein the release member serves to protect the adhesive surface of the adhesive member before attachment to the measurement target.

The release member may be at least one selected from polyethylene terephthalate (PET), polyethylene naphthalate (PEN), and polycarbonate (PC), and most preferably, polyethylene terephthalate.

The body-attachable biosignal amplification patch of the present invention may be in the form of stacking in various structures, and examples of the stacked structure are shown in FIGS. 3 to 7 .

Referring to FIG. 3 , the body-attachable biosignal amplification patch 10 according to an embodiment has the radio signal reflection member 1 as described above, the adhesive member 2 thereon, the top, and the outer surface after bonding. It may include a protective member (3) in the position.

Referring to FIG. 4 , the radio signal reflection member 1 may be provided between the adhesive member 2 and the protection member 3 . In the case of this type of patch 10, since the metal may not directly contact the skin when attached to the skin, it is useful for a user with a metal allergy.

In addition, a plurality of radio wave signal reflecting members may be spaced apart from each other at a predetermined interval under the adhesive member and arranged in parallel in a line.

5 and 6 , the radio signal reflection member 1 may be disposed to be spaced apart from each other in parallel based on a predetermined slit interval, and may be embedded in the adhesive member 2 or may be disposed under the adhesive member 2 .

As described above, by arranging the radio wave signal reflection members spaced apart from each other in parallel at regular intervals, the degree of signal amplification can be controlled, and an equal or greater amplification effect can be achieved even with a small amount of metal, thereby reducing manufacturing cost and economical.

In addition, referring to FIG. 7 , the body-attachable biosignal amplification patch 10 includes a protective member 3 at the uppermost portion, a radio signal reflecting member 1 under the protective member 3 , and a radio signal reflecting member 1 under the radio signal reflecting member 1 . to the adhesive member 2 and the adhesive member 2 may include a release member 4 under the adhesive member 2 .

By using these various types of patches when extracting biosignals, skin damage is minimized when directly contacting the skin of the measurement target without interfering with the activity of the measurement object, and only the intensity is amplified without affecting the quality of the radio signal. More accurate biosignals can be extracted and analyzed.

Although the above has been described with reference to the preferred embodiments of the present invention, those skilled in the art can variously modify and change the present invention without departing from the spirit and scope of the present invention as set forth in the following claims. You will understand that you can.

10: Body-attached biosignal amplification patch
1: Radio signal reflection member
2: Adhesive member
3: no protection
4: No release member

Claims (9)

lack of protection;
an adhesive member disposed under the protection member; and
and a radio signal reflecting member disposed under the adhesive member;
Body-mounted biosignal amplification patch.
According to claim 1,
The radio signal is IR-UWB (impulse radio ultra wideband),
Body-mounted biosignal amplification patch.
According to claim 1,
The radio signal reflection member is at least one selected from aluminum, silver and platinum,
Body-mounted biosignal amplification patch.
According to claim 1,
The protective member is at least one selected from woven fabric, nonwoven fabric and felt,
Body-mounted biosignal amplification patch.
According to claim 1,
The adhesive member includes at least one selected from acrylic, silicone, vinyl ester, vinyl ether, and urethane pressure-sensitive adhesives,
Body-mounted biosignal amplification patch.
According to claim 1,
When the radio signal reflection member is disposed under the protection member, further comprising a release member under the adhesive member,
Body-mounted biosignal amplification patch.
7. The method of claim 6,
The release member is at least one selected from polyethylene terephthalate (PET), polyethylene naphthalate (PEN) and polycarbonate (PC),
Body-mounted biosignal amplification patch.
lack of protection;
an adhesive member disposed under the protection member; and
and a radio signal reflection member provided between the protection member and the adhesive member.
Body-mounted biosignal amplification patch.
9. The method of claim 8,
A plurality of radio wave signal reflecting members are spaced apart at regular intervals under the adhesive member and arranged in parallel in a line,
Body-mounted biosignal amplification patch.

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