JP2008212489A - Electrode for biological information measurement - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To perform sticking to a subject by a simple procedure without using a tab. <P>SOLUTION: An electrode main body comprising a base material 110, an electrode part 120, a gel layer 130 and a nonwoven fabric 140 is supplied for measuring the biological information of the subject. A sticking part stipulated by the lower surface of the gel layer 130 and the lower surface of the nonwoven fabric 140 is provided to the electrode main body and sticks the electrode main body to the body of the subject. A separator 150 is provided with a covering area 151 for covering the sticking part, a non-covered area 152 externally extended from the covering area, and a cut part 153 cut from the peripheral edge part of the non-covered area 152 to the covering area 151. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a biological information measuring electrode that is worn on a subject and measures biological information such as an electrocardiogram.

  As one of the electrocardiogram examinations for examining an electrocardiogram abnormality such as arrhythmia or ischemic heart disease, there is a Holter electrocardiogram examination (for example, see Patent Document 1). In the Holter electrocardiogram examination, an electrocardiogram electrode (dispo electrode) connected to a portable recording device is attached to the subject's chest, and the electrocardiogram of the subject detected by the electrocardiogram electrode is displayed for a certain period (for example, 24 hours). ) Continuously recorded in the recording device. By analyzing the electrocardiogram recorded in the recording device, an electrocardiogram abnormality that appears only occasionally can be captured.

  A conventional electrocardiogram electrode is formed by adhering a non-woven fabric coated with a conductive adhesive gel layer and an adhesive with an electrode portion interposed therebetween, and the surface of the gel layer and the non-woven fabric adhesive are applied. Attached to the chest of the subject using the adhesive force of the affixing surface defined by the surface. Before use, a separator made of a resin film is adhered and adhered to the affixing surface, and this separator prevents the affixing surface from drying and maintains the adhesive strength.

A tape-like tab (handle) is inserted between the affixing surface and the separator in a state of being adhered to the affixing surface, and this tab forms a play portion of the affixing surface that is not in close contact with the separator. . A part of the tab protrudes from the sticking surface. When the protruding portion of the tab is lifted, a force is transmitted to the play portion of the sticking surface, and the sticking surface can be peeled off from the separator to be exposed.
JP 2001-299711 A

  However, with conventional electrocardiogram electrodes, the tab adhered to the affixing surface must be removed separately from the separator in parallel with or after the affixing of the affixing surface to the separator when the electrode is mounted. There is a problem that it takes time and effort. Moreover, if it is forgotten to remove the tab from the application surface, the edge of the tab may hit the subject's chest and cause skin damage. Furthermore, since the tab and the separator become two separate garbages, the amount of garbage increases.

  This invention is made | formed in view of this point, and it aims at providing the electrode for a biological information measurement which can be affixed on a subject with a simple procedure, without using a tab.

  The electrode for biological information measurement of the present invention includes an electrode main body for use in measuring biological information of a subject, a pasting portion that is provided on the electrode main body, and pastes the electrode main body to the body of the subject, and the pasting portion And a film portion having a non-cover region extending from the cover region, and a cut portion cut from a peripheral edge of the non-cover region toward the cover region. take.

  According to the present invention, it can be applied to a subject by a simple procedure without using a tab.

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

  FIG. 1 is a schematic perspective view showing a configuration of a biological information measuring electrode 100 according to an embodiment of the present invention. In the present embodiment, the “upper surface” means a surface of the biological information measuring electrode 100 that faces in a direction opposite to the application surface to the subject, and the “lower surface” means the biological information measuring electrode. The surface which faces the direction of the sticking surface to 100 subjects.

  In FIG. 1, the biological information measuring electrode 100 mainly includes a substrate 110, an electrode part 120, a gel layer 130, a nonwoven fabric 140, and a separator 150. The lower surface of the nonwoven fabric 140 is an adhesive surface to which an adhesive 141 is applied.

  The base material 110, the electrode part 120, the gel layer 130, and the nonwoven fabric 140 function as an electrode main body used for measuring biological information of the subject. Each of the base material 110 and the electrode portion 120 has an elongated portion that is elongated. The elongated portion serves as a lead wire that transmits an electrocardiogram signal detected from the subject to a recording device (not shown). Function.

  The substrate 110 is made of a film-like film material such as polyethylene terephthalate (PET). An electrode part 120 is provided on the lower surface of the base material 110, and the base material 110 forms the core of the sensor part and the lead wire of the biological information measuring electrode 100. A shield film may be formed on the upper surface of the substrate 110 as a countermeasure against electromagnetic waves and static electricity to the electrode part 120.

  The electrode unit 120 is made of a material such as silver-silver chloride (Ag—AgCl), and is disposed between the lower surface of the substrate 110 and the upper surface of the gel layer 130. The electrode unit 120 detects an electrocardiogram signal transmitted from the gel layer 130 and transmits it to a recording device (not shown).

  The gel layer 130 is a gel layer having conductivity, adhesiveness, stretchability, and hygroscopic expansion. The gel layer 130 is bonded to the lower surface of the substrate 110 by its own adhesive force with the electrode portion 120 interposed between the upper surface of the gel layer 130 and the lower surface of the substrate 110. The gel layer 130 is bonded to the lower surface of the nonwoven fabric 140 by its own adhesive force and the adhesive force of the adhesive 141. The gel layer 130 affixes the electrode body to the chest of the subject by its own adhesive force, and sends an electrocardiogram signal (heart electrical excitation), which is a minute electromotive force generated by the heart activity of the subject, to the electrode portion 120. Tell. The gel layer 130 has a two-layer structure of an upper surface side gel and a lower surface side gel, and an intermediate base material made of a very thin mesh-like nonwoven fabric is provided between these layers to maintain the shape of the gel layer 130. You may do it.

  The nonwoven fabric 140 has a disk shape, and covers and protects the base material 110, the electrode part 120, and the gel layer 130 from the upper surface side of each of these members. Moreover, the nonwoven fabric 140 affixes an electrode main body to a subject's chest by the adhesive force of the adhesive 141 apply | coated to the lower surface.

  Thus, the lower surface of the gel layer 130 and the lower surface of the non-woven fabric 140 define an application portion for attaching the electrode body to the chest of the subject. The nonwoven fabric 140 completely covers the gel layer 130 and protrudes from the peripheral edge of the gel layer 130. Therefore, this affixing part consists of the gel layer 130 provided in the approximate center part of the surface, and the adhesive layer of the nonwoven fabric 140 provided around the gel layer 130.

  The separator 150 is made of a resin film that does not allow moisture to pass therethrough. The separator 150 covers the sticking portion defined by the lower surface of the gel layer 130 and the lower surface of the nonwoven fabric 140 before use, that is, before sticking the electrode body to the chest of the subject, and prevents the sticking portion from drying. Thereby, the separator 150 maintains the water retention of the sticking part, and consequently the adhesive strength of the sticking part.

  The structure of the separator 150 will be described in detail with reference to FIG. FIG. 2 is a view of the electrode body and the separator 150 as viewed from the lower surface side.

  In FIG. 2, the separator 150 has a covering region 151 that covers a sticking portion defined by the lower surface of the gel layer 130 and the lower surface of the nonwoven fabric 140. The covering region 151 seals the sticking part and prevents the evaporation of moisture from the sticking part.

  The separator 150 has an uncoated region 152 extending from the coated region 151. Here, the non-covering region 152 extends from the entire periphery of the covering region 151. The non-covering region 152 does not cover the sticking part, and the upper and lower surfaces thereof are exposed.

  The separator 150 has a cut portion 153 cut from the peripheral portion of the non-cover region 152 toward the cover region 151. Here, the cut portion 153 is cut from the peripheral position 153A of the non-covered region 152 to the position 153B inside the covered region 151 across the covered region 151. The cut portion 153 does not necessarily need to be cut to a position inside the covering region 151, and may be cut to the inside of the non-covering region 152 as long as it crosses the covering region 151. 151 and the non-covering region 152 may be cut to the boundary.

  When the cut portion 153 is cut to the inside of the covered region 151 across the covered region 151, the strength of the separator 150 partially separated through the cut portion 153 can be maintained high. That is, it is possible to prevent the separator 150 from being separated into two parts by applying a force to the cut end portion of the cut portion 153 and tearing it.

  When the cut portion 153 is cut to the inside of the uncovered region 152 across the covered region 151, compared with the case where the cut portion 153 is cut to the inside of the covered region 151 across the covered region 151 And the area of the sticking part exposed when a part of separator 150 is peeled off by making the notch part 153 into a boundary can be enlarged. Moreover, since there is a certain distance between the cut end portion of the cut portion 153 and the peripheral edge portion of the sticking portion, the exposed sticking portion is easily attached to the subject.

  When the cut portion 153 is cut to the boundary between the covered region 151 and the non-covered region 152 across the covered region 151, it is pasted when a part of the separator 150 is peeled off with the cut portion 153 as the boundary. The maximum area that can be used for pasting in the part can be exposed, and both the strength of the separator 150 and the exposed area of the pasted part can be optimized.

  Here, the area of the sticking part exposed when the separator 150 is peeled off can be adjusted by changing the cutting position, the cutting angle, and the cutting length of the cutting part 153. It is desirable to optimize the exposed area of the affixed part in consideration of the strength of the affixed part and the strength of the separator 150 (for example, strength of strength and elasticity). By optimally designing the exposed area of the affixed part, for example, the exposed area of the affixed part that is relatively weak is too much, so that the affixed parts adhere to each other and become rounded or wrinkled so that they cannot be applied well The problem can be solved.

  The cut portion 153 is cut in a region other than the region covering the gel layer 130 in the covering region 151. Thereby, it can prevent that the air penetrate | invades from the slight clearance gap in which the notch part 153 was cut, and the lower surface of the gel layer 130 dries. In addition, the gel layer 130 having adhesiveness and stretchability is pulled while being adhered to a part of the separator 150 that is peeled off with the notch 153 as a boundary, so that the shape of the gel layer 130 is collapsed, The layer 130 can be prevented from being broken.

  Further, the cut portion 153 is provided with a cross cut portion 153a that intersects the direction in which the cut portion 153 is cut. The crossing cut portion 153a defines the cut end portion (terminal portion) of the cut portion 153, and even if force is applied to the cut end portion of the cut portion 153, the cut end portion of the separator 150 The previous part can be prevented from being torn.

  In order to define the cut end of the cut portion 153, various methods other than providing the cross cut portion 153a can be employed. An example of this method will be described with reference to FIG. FIG. 3 is a diagram showing a punched hole 153 b provided in the cut portion 153.

  In FIG. 3, a round cutout hole 153 b is provided at the end of the cutout portion 153, and the cutout end portion of the cutout portion 153 is defined by the cutout hole 153 b, and the cutout portion Even if a force is applied to the cut end portion of 153, it is possible to prevent the tip portion of the separator 150 from being torn. In this way, if the separator 150 can be resisted when the separator 150 is pulled with the notch 153 as a boundary, the end of the notch 153 can be varied within a range that does not affect the adhesive strength of the sticking part. Can be designed in any shape.

  When using the biological information measuring electrode 100 configured as described above, the person in charge of measurement peels off the adhesive portion defined by the lower surface of the gel layer 130 and the lower surface of the nonwoven fabric 140 from the separator 150, and exposes it. The affixed part is affixed to a predetermined electrode mounting site of the subject. This process will be described in more detail with reference to FIGS.

  4A to 4D are diagrams illustrating an example of a process for attaching the biological information measuring electrode 100 to a subject.

  As shown in FIG. 4A, before use, the affixed portion defined by the lower surface of the gel layer 130 and the lower surface of the nonwoven fabric 140 is tightly covered with the covering region 151 of the separator 150. Thereby, drying of a sticking part is prevented and water retention and adhesive force are maintained favorable.

  As shown in FIG. 4 (B), the person in charge of measurement first picks up a portion of the non-covered region 152 of the separator 150 behind the notch 153 and pulls it in the direction of the arrow X. Thereby, the back part of the separator 150 with the notch 153 as a boundary is peeled off from the sticking part, and a part of the sticking part, more specifically, a part of the lower surface of the nonwoven fabric 140 is exposed. When the peeling of the separator 150 reaches the cross cut 153a, the person in charge of measurement sticks the exposed sticking part to the chest of the subject.

  As shown in FIG. 4C, the person in charge of measurement then turns back while pinching the separator 150, and pulls it in the direction of arrow Y while pressing the sticking part against the chest of the subject. Thereby, the separator 150 is gradually peeled off from the sticking portion, and the remaining sticking portion, more specifically, the lower surface of the gel layer 130 and the lower surface of the nonwoven fabric 140 that is still covered are gradually exposed. Further, the exposed affixed part is sequentially affixed to the subject's chest.

  As shown in FIG. 4D, when the person in charge of measurement continues to pull the separator 150 in the direction of arrow Y, the separator 150 is completely peeled off from the affixed part, and the entire affixed part is affixed to the chest of the subject. It is done.

  In this way, due to the action of the cut portion 153 cut into the separator 150, the person in charge of measurement sticks a part of the separator 150, and pulls the pinched part with one turn in the middle. The part can be gradually exposed and pasted on the subject's chest (one-touch pasting). This procedure is simpler than the operation of peeling off the pasting portion using the conventional tab and the separator 150, and can reduce the labor and time required for pasting the electrode body.

  Moreover, since the separator 150 peeled off from the sticking part is a single film in which the notch part 153 is cut, there are few cases where this is bulky as dust.

  Also, instead of exposing and pasting the affixing part all at once, first a part of the affixing part is exposed and affixed, and the affixing part is gradually exposed and affixed so as to spread from the affixed part. , It can be affixed neatly without sticking parts sticking together.

  As described above, according to the present embodiment, the biological information measuring electrode 100 is provided with the electrode main body made of the base 110, the electrode unit 120, the gel layer 130, and the nonwoven fabric 140, which is used for measuring the biological information of the subject. From the covering region 151 provided on the electrode main body and pasting the electrode main body to the subject's body, defined by the lower surface of the gel layer 130 and the lower surface of the nonwoven fabric 140, the covering region 151 covering the pasting portion, and the covering region 151 It has the separator 150 which has the non-covering area | region 152 extended outward, and the notch part 153 cut | disconnected from the peripheral part of the non-covering area | region 152 toward the covering area | region 151. FIG. Thereby, the electrode 100 for biological information measurement can be affixed to a subject by a simple procedure without using a tab.

  In the present embodiment, the description has been given on the assumption that the cut portion is cut across the covering region, but the present invention is not limited to this. Even if the cut portion does not reach the covered area and is cut only in the uncovered area, if the cut portion is cut toward the covered area, the person in charge of measurement Can be torn from the cut end and stretched to cross the covered region, so that a part of the sticking part can be exposed.

  In the present embodiment, the case where the biological information measurement electrode is used in the Holter electrocardiogram is described as an example, but the present invention is not limited to this. For example, the biological information measurement electrode of the present invention can be used in other biological information measurement tests such as a 12-lead ECG test.

The schematic perspective view which shows the structure of the electrode for biological information measurement which concerns on one embodiment of this invention The figure which looked at the electrode main body and separator which concern on one embodiment of this invention from the lower surface side The figure which shows the punched hole provided in the notch part which concerns on one embodiment of this invention The figure which shows an example of the sticking process to the subject of the electrode main body which concerns on one embodiment of this invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Biological information measurement electrode 110 Base material 120 Electrode part 130 Gel layer 140 Non-woven fabric 141 Adhesive 150 Separator 151 Covered area 152 Uncovered area 153 Cut part 153a Cross cut part 153b

Claims (3)

An electrode body for measurement of biological information of the subject;
An affixing portion provided on the electrode body, and affixing the electrode body to the body of the subject;
A film portion having a covering region covering the sticking portion, a non-covering region extending outward from the covering region, and a cut portion cut from a peripheral portion of the non-covering region toward the covering region;
An electrode for measuring biological information, comprising: The cut portion is cut across the covered region to the position of the inside of the covered region, the inside of the uncovered region, or the boundary between the covered region and the non-covered region,
The biological information measuring electrode according to claim 1. The affixing part is composed of a gel layer and an adhesive layer provided around the gel layer,
The cut portion is cut into a region other than the region covering the gel layer in the covering region,
3. The biological information measuring electrode according to claim 1, wherein the living body information measuring electrode is provided.

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