JP2017148461A - Electric signal acquirable clothing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide electric signal acquirable clothing capable of stably acquiring a weak signal, with noise suppressed, without restricting a subject person.SOLUTION: The electric signal acquirable clothing includes, at least at a part of the clothing, a plurality of clothing-side electrodes for use in an electric signal acquisition meter that acquires an electric signal from a body surface of a subject person. The plurality of clothing-side electrodes are electrically insulated therebetween, a reverse face thereof can come into direct contact with the body surface, and the front face includes a flexible conductive part capable of coming into direct contact with one of multiple external electrodes connected to the electric signal acquisition meter. The number of clothing-side electrodes are equal to or more than the number of external electrodes.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an electrical signal acquisition clothing for acquiring a medical electrical signal of a subject.

  With the aging of society, the population of elderly people is increasing and the number of elderly people who need nursing care is also increasing. Arrhythmia such as atrial fibrillation is one of the causes of cerebrovascular diseases and heart diseases that are diseases of the circulatory system. The occurrence of arrhythmia is not regular and difficult to detect.

  If it can be discovered, it will lead to early detection of cerebrovascular disease, and by detecting it before it becomes a serious symptom, the burden of caregiving due to bedridden etc. can be reduced, reducing the burden of medical expenses both personally and socially Can contribute. Therefore, there is a demand for clothing for acquiring electrical signals that can continuously acquire electrical medical signals such as electrocardiograms in the unconscious state during sleep.

  For example, Patent Document 1 describes a clothing for acquiring an electric signal in which a part or all of a subject's clothing is formed of a cloth body having conductivity on both front and back surfaces.

JP-A-11-128187

  In the clothes for acquiring an electric signal described in Patent Document 1, only one electrode is configured over a wide area near the shoulder, and in order to acquire a weak signal while suppressing noise, for example, the electrode is placed at a position sandwiching the heart. However, there is no disclosure or suggestion about the clothes for acquiring an electric signal in which a plurality of electrodes are provided at such close positions.

  The present invention solves such a conventional problem, and does not restrain the subject, and is provided with a plurality of electrodes in close proximity to suppress noise and stably acquire a weak signal. An object is to provide clothing for signal acquisition.

  The clothing for acquiring electrical signals of the present invention comprises a plurality of clothing-side electrodes used in an electrical signal acquisition meter for obtaining an electrical signal from the body surface of the subject, at least a part of the clothing, and between the plurality of clothing-side electrodes. It is electrically insulated, and has a flexible conductive part that can be directly contacted with one of a plurality of external electrodes connected to an electrical signal acquisition meter with the back surface being in direct contact with the body surface. The number of side electrodes is greater than the number of external electrodes.

  According to the present invention, it is possible to provide a clothing for acquiring an electric signal that can stably acquire a weak signal without restraining the subject and suppressing noise.

The conceptual diagram for demonstrating the structure of the clothing for electrical signal acquisition which concerns on one embodiment of this invention The figure which shows the positional relationship example of the electrode of the clothes for electrical signal acquisition which concerns on one embodiment of this invention The figure which shows the relationship between the clothing for electrical signal acquisition which concerns on one embodiment of this invention, a subject, and an external electrode Sectional drawing which shows the other structure of the clothing side electrode of the clothing for electrical signal acquisition which concerns on one embodiment of this invention

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a conceptual diagram for explaining a configuration of an electrical signal acquisition clothing according to an embodiment of the present invention. FIG. 1a is a view showing a state in which a subject is lying upward on a floor equipped with external electrodes and wearing an electric signal acquisition clothing. FIG. 1 b is a diagram showing an arrangement of clothing side electrodes of the clothing for acquiring an electric signal. FIG. 1c is a diagram illustrating an arrangement of external electrodes on the floor side.

  FIG. 2 is a diagram showing an example of the positional relationship between the electrodes of the clothes for acquiring an electric signal according to the embodiment of the present invention. FIG. 3 is a diagram showing a relationship between the clothing for acquiring an electric signal, the subject, and the external electrode according to the embodiment of the present invention. FIG. 4 is a cross-sectional view showing another configuration of the clothing side electrode of the clothing for acquiring an electric signal according to the embodiment of the present invention.

  The electrical signal acquisition clothing 10 includes a plurality of clothing-side electrodes 12, 12 a to 12 k, 12 m, 12 n that are used in an electrical signal acquisition meter 30 that acquires electrical signals from the body surface 22 of the subject 20 sleeping on the floor 60. 12p-12v. Each clothing side electrode is rectangular. An example of the electrical signal to be acquired is an electrocardiogram.

  The plurality of clothing-side electrodes 12, 12a to 12k, 12m, 12n, and 12p to 12v are electrically insulated, the back surface 16 can be in direct contact with the body surface 22 of the subject 20, and the front surface 18 is an electrical signal. A flexible conductive portion 40 that can directly contact one of the plurality of external electrodes 14, 14 a to c connected to the acquisition meter 30 is provided.

  The number of clothing side electrodes 12, 12a to 12k, 12m, 12n, 12p to 12v is equal to or greater than the number of external electrodes 14a to 14c.

  The maximum diameter L1 of the clothing side electrode 12 is smaller than the minimum distance L2 of the non-conductive portion between the adjacent external electrode 14a and the external electrode 14b so that the external electrodes are not short-circuited by the clothing side electrode. ing. All the clothing side electrodes have the same configuration.

  In addition, it goes without saying that the maximum diameter of the maximum diameter L1 is a diameter in the case of a circle, but in the case of a quadrangle, the maximum linear dimension that can be taken in the shape, such as a diagonal line.

  The distance L3 of the non-conductive portion between the adjacent clothing side electrode 12d and the clothing side electrode 12e is smaller than the minimum side width L4 of the external electrode 14c, and within the clothing side electrode arrangement area 13 where the clothing side electrodes are arranged. If so, one of the clothes side electrodes is always in contact with the external electrode. All the clothing side electrodes have the same configuration.

  The flexible conductive portion 40 constitutes a cloth by sewing conductive fibers so as to penetrate the front and back of the garment 10 made of a cloth made of non-conductive fibers like embroidery.

  The external electrodes 14a and 14b are provided at the left and right positions sandwiching the heart of the subject 20 when the subject 20 places his head on the pillow 26 placed on the floor 60. The external electrode 14c It is provided in the direction of the foot of the subject 20 as viewed from 14a.

  The electrical signals acquired by the external electrodes 14a to 14c are input to the electrical signal acquisition meter 30 through the cables 31 to 33, respectively.

  When the electrical signal acquired by the external electrode 14a is RA, the electrical signal acquired by the external electrode 14b is LA, and the electrical signal acquired by the external electrode 14c is G, (LA−G) − (LA−RA) = RA−G It is possible to obtain an electrocardiogram with reduced noise.

  In FIG. 1, the external electrode 14 has a structure that penetrates from the front surface to the back surface of the floor 60, and in FIG. 3, the external electrode 14 has a structure that is provided on the floor 60. As long as the external electrode 14 can be in direct contact with the clothing side electrode 12 and the external electrode 14 and the electric signal acquisition meter 30 can be connected by a cable, either structure may be used.

  As described above, according to the present embodiment, it is possible to provide a clothing for acquiring an electric signal that can stably acquire a weak signal while suppressing noise without restraining the subject.

  The above description is an illustration of a preferred embodiment of the present invention, and the scope of the present invention is not limited to this.

  For example, the flexible conductive portion does not need to be a sewn cloth made of conductive fibers, and is woven or knitted fabric made of conductive fibers, non-woven fabric, conductive film, or printed with conductive ink. Or spraying, or a combination thereof.

  Furthermore, the clothing side electrode may not be composed of only the flexible conductive part, and may be a combination of a flexible conductive part and a metal part, for example. Furthermore, the surface of the clothing side electrode does not have to be a rectangle, and may be a free shape such as another polygon, a circle, or a combination thereof.

  Further, as shown in FIG. 4, for example, a square hole may be formed in the electrical signal acquisition clothing 10, and the clothing side electrode 12 may be provided with a periphery fixed by a sewing fixing portion 42. The shape of the hole to be opened is not limited to a square, and may be any shape such as a polygon, a circle, or a combination thereof.

Industrial applicability

  The clothes for acquiring an electric signal according to the present invention are suitable as clothes for acquiring an electric signal that can stably acquire a weak signal while suppressing noise without restraining the subject.

DESCRIPTION OF SYMBOLS 10 Clothing 12 for electric signal acquisition, 12a-12k, 12m, 12n, 12p-12v Clothing side electrode 13 Clothing side electrode arrangement area 14, 14a-c External electrode 16 Back surface 18 Surface 20 Subject 22 Body surface 26 Pillow 30 Electricity Signal acquisition meter 31, 32, 33 Cable 40 Flexible conductive part 42 Sewing fixing part 60 Floor

Claims (6)

  A plurality of clothing-side electrodes used in an electrical signal acquisition meter that obtains electrical signals from the body surface of the subject are provided at least in part of the clothing, and the plurality of clothing-side electrodes are electrically insulated from each other, and the back surface Can be directly contacted with the body surface, and has a flexible conductive part whose surface can be directly contacted with one of a plurality of external electrodes connected to the electric signal acquisition meter, and the number of clothing side electrodes is A clothing for acquiring an electric signal, characterized in that the number is equal to or more than the number of external electrodes.   The clothing for acquiring an electric signal according to claim 1, wherein the maximum diameter of the clothing side electrode is smaller than the minimum distance of the non-conductive portion between the adjacent external electrodes.   The clothing for acquiring an electric signal according to claim 1 or 2, wherein the distance between the non-conductive portions between the clothing side electrodes adjacent to each other is smaller than the minimum side width or the minimum diameter of the external electrode.   2. The flexible conductive portion is a woven fabric, a knitted fabric, a sewing fabric, a nonwoven fabric, a conductive film or a conductive ink, or a spray made of conductive fibers. The clothing for acquiring an electric signal according to any one of items 1 to 3.   5. The clothing for acquiring an electric signal according to claim 1, wherein a surface of the clothing side electrode is circular or polygonal.   The clothing for acquiring an electric signal according to any one of claims 1 to 5, wherein the clothing side electrode is fixed around a hole provided in the non-conductive clothing.

Images