JP2003180642A - Electrode for living body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electrode for a living body which is easily applied to the skin without causing the pain of a subject. <P>SOLUTION: Only one sheet of cover film 14 must be peeled after applying a tape 13 onto the skin 21 of the subject because the flexible and stretchable tape 13 is reinforced with a sheet of cover film 14, so as to be applied onto the skin in accordance with the movement of the subject in the condition before applying onto the subject, in applying the electrode element 11 detecting electric signals generated by the living body onto the skin 21 of the living body by the tape 12 via the electroconductive gel layer 18. The problem of the pain of the subject can be eliminated by strongly pushing the signal wire 23 to the electrode element after applying as in the conventional electrode because the signal wire 23 can be attached before applying by forming the slit 16 in the cover film 14. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrode for a living body which is attached to a surface of a living body to lead an electric signal of the living body to an electrocardiograph, an electromyography or the like.

[0002]

2. Description of the Related Art Conventionally, as a disposable biomedical electrode in which an electrode element and an adhesive tape for fixing the electrode element to a living body surface are integrated, for example, Japanese Patent Laid-Open No. 2000-27.
There is one disclosed in Japanese Patent No. 1100.

As in the biomedical electrode 100 shown in FIG. 6, a disc-shaped label 102 is attached to the opposite side of the electrode element 101 (the upper side in FIG. 6), and the terminal 101b of the electrode element 101 is attached.
Penetrates a small hole 102a formed at the center of the label 102 and projects upward. The tip of the terminal 101b protruding from the small hole 102a of the label 102 is "member 17 of FIG.
3, tape 104, small hole 1 formed in the center of each of the first cover film 105 and the second cover film 106
It penetrates through 03a, 104a, 105a, 106a and projects outward.

The first cover film 105 is divided into two parts, and is abutted at a central abutting portion 105B. Further, the Mimi tape 107 is temporarily adhesively fixed to the outer circumference of the tape 104.

On the other hand, a conductive gel layer 108 is provided on the lower surface of the disc 101A on the sticking side of the electrode element 101 (the lower side in FIG. 6). The shape is retained by being immersed in the retaining material 109 formed on the. The holding material 109 is placed between the above-mentioned label 102 and the electrode element 10
The first disc 101A is sandwiched and adhered to the outer periphery of the holding material 109 to surely bring the electrode element 101 and the conductive gel layer 108 into contact with each other.

The conductive gel layer 108 is covered with the recess 110A of the gel cover 110 at the time of storage to prevent the conductive gel layer 108 from drying. Since the gel cover 110 is usually formed of a transparent plastic sheet, a notched circular gel cover tape 111 is adhered or printed on the outer periphery so as to stand out after being peeled off. As the gel cover 110, as shown in FIG. 7, there is one that holds a plurality of biomedical electrodes 100 by using a long and thin mount.

[0007] To mount such a biomedical electrode 100 on the skin surface of a living body, as shown in FIG.
The dirt on the skin 112 of the subject to which 100 is attached is wiped off with alcohol-purified cotton 113, and as shown in FIG. . Next, as shown in FIG. 8C, the tape 104 held in a disc shape by the first cover film 105 and the second cover film 106 is applied to the skin.
The electrode element 101 is attached to a predetermined position of 112 to form the conductive gel layer
Fix to the skin via 108. Then, the Mimi tape 107 is peeled off as shown in FIG. When Mimi tape 107 is provided in two or more places, the remaining Mimi tape
107 is peeled off, and the electrode element 101 is brought into close contact with the skin 112 as shown in FIG. 8 (E).

Subsequently, as shown in FIG. 8 (F), after the second cover film 106 is peeled from the first cover film 105, the abutting portion 105B of the first cover film 105 is held, and a pair of left and right sides is held. Each of the semicircular first cover films 105 is pulled outward (upward or downward in FIG. 8) to be peeled from the tape 104. Finally, after fixing the electrode element 101 to the skin as shown in FIG.
Attach a lead wire (not shown).

[0009]

By the way, in the above-mentioned biomedical electrode 100, the first cover film 105 is attached at the time of mounting.
And it is necessary to peel off the second cover film 106,
It has to be removed twice, which is troublesome, and there is room for improvement. Further, since it is necessary to peel off the two cover films 105 and 106 after fixing the electrode element 101 to the skin as described above, the lead wires are fixed after fixing the electrode element 101 to the skin and peeling off the cover films 105 and 106. Electrode element 101
It is designed to be attached to. Therefore, especially when connecting a hook type lead wire, the lead wire is connected to the electrode element 101.
The subject's skin 112
It may be painful to press the
It has come to be considered preferable to connect a lead wire to 101 and then to attach it to the skin of the subject.

The present invention has been made in view of the above-mentioned improvements, and an object thereof is to provide an electrode for a living body that can be easily and affixed to the skin of a subject without causing pain. is there.

[0011]

In order to achieve the above-mentioned object, according to the present invention, as described in claim 1, an electrode element for detecting an electric signal generated by a living body is provided with a conductive gel layer by a tape. An electrode for a living body to be attached to the skin of a living body via the tape, wherein the tape is composed of a flexible and stretchable thin film, and one piece of reinforcement is provided on the side opposite to the side where the tape is attached to the living body. It is characterized in that a cover film for use is provided so that it can be peeled off after being attached to a living body.

In the biomedical electrode thus constructed, a tape which is flexible and stretchable so as to be attached to the skin in conformity with the movement of the subject in the state before being attached to the subject. Since it is reinforced with one cover film, it suffices to peel off one cover film after attaching the tape to the skin of the subject. Therefore,
In this biomedical electrode, since only one cover film needs to be peeled off after sticking, it is possible to solve the conventional problem that two cover films have to be peeled off and labor is required.

Further, according to the present invention, as described in claim 2, an electrode for a living body in which an electrode element for detecting an electric signal generated by a living body is attached to the skin of a living body via a conductive gel layer with a tape. There, the tape is flexible, and provided with a cover film for reinforcement on the side opposite to the sticking surface to the living body of the tape while being composed of a thin film having elasticity, and the electrode element is signaled to the cover film. It is characterized in that a small hole through which a terminal connected to the wire penetrates is provided and a slit is provided from the small hole toward the outer peripheral edge.

In the biomedical electrode thus constructed, the cover film can be easily removed from the signal line by cutting the cover film along the slit even after the signal line is attached to the biomedical electrode. A signal line is attached to the terminal of the working electrode, and the biomedical electrode to which the signal line is attached is attached to the subject. Therefore, in this biomedical electrode, since the signal line is attached before sticking, it is possible to solve the problem that the signal line is strongly pressed against the electrode element after sticking, which causes pain to the subject. .

Further, the present invention provides the biomedical electrode according to claim 1 or 2, as described in claim 3,
The cover film has the same size and shape as the tape. Therefore, the cover film overlaps with the tape composed of a flexible and stretchable thin film to reinforce the tape.

Further, according to the present invention, as described in claim 4, in the biomedical electrode according to any one of claims 1 to 3, the cover film is not applied to the cover film for peeling the cover film from the tape. It is characterized in that a Mimi tape having an adhesive portion is provided. Therefore, when the cover film is peeled off from the tape, it can be easily peeled off by peeling it from the non-adhesive part of the Mimi tape which is attached to the cover film but is not attached to the tape.

Further, according to the present invention, as described in claim 5, in the biomedical electrode according to any one of claims 1 to 4, the tape has a non-adhesive portion for peeling the tape from the mount. It is characterized in that the Mimi tape having the above is provided. Therefore, when the tape is peeled off from the mount, it can be easily peeled off by peeling it from the non-adhesive portion of the Mimi tape which is adhered to the tape but not adhered to the mount.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 is an exploded configuration diagram of a biomedical electrode according to the present invention, FIG. 2 is a plan view showing an example before use in which three biomedical electrodes are attached to one gel cover, and FIGS. H) shows an explanatory view showing the procedure for attaching the biomedical electrode.

As shown in FIG. 1, in the biomedical electrode 10 according to the embodiment of the present invention, a circle on which a trade name or the like is written, for example, is provided on the side opposite to the electrode element 11 (the upper side in FIG. 1). A plate-shaped label 12 is attached to the terminal 11 of the electrode element 11.
B passes through a small hole 12A formed at the center of the label 12 and projects upward. Further, the label 12 of the electrode element 11
The tip of the terminal 11B projecting from the small hole 12A of the tape 11 and the small holes 13A, 14A formed at the centers of the tape 13 and the cover film 14 project outward.

On the outer circumference of the tape 13, there is a Mimi tape 15
Is temporarily fixed. The side surface of the Mimi tape 15 is peelably adhered to the tape 13, and the side surface opposite to the tape 13 does not adhere to the tape 13 or can be easily separated. The tape 13 is formed in a circular shape with a flexible and highly stretchable tape, for example, a urethane film, for holding and fixing the electrode element 11 to the skin surface of the subject. The thickness of the tape 13 is 0.1 mm or less, for example
It is 0.02 mm to 0.05 mm, and the force required to grow to a length twice as long as that in a state where no tension is applied is 400 g or less per 1 cm width, for example, 200 g. Water vapor permeability is 400g / m ² / 24hr
Above, for example, about 800g / m ² / 24hr. In addition, tape 13
A pressure sensitive adhesive layer is provided on one surface of the.

The cover film 14 is provided with a slit 16 from the small hole 14A toward the outer peripheral edge. The slit 16 extends to the front side of the outer peripheral edge of the cover film 14.
Therefore, although the outer peripheral edge is continuous over the entire circumference, it is easy to slit up to the edge by applying an external force above a predetermined level.
16 can be extended and separated.

Since the cover film 14 has the same size and shape as the tape 13 and is difficult to remove, the Mimi tape 17 is also attached to the cover film 14 in order to easily remove the cover film 14 from the tape 13. The cover film 14 side of this Mimi tape 17 is the cover film 14
The tape 13 is peelably adhered to the tape 13, but the side surface of the tape 13 is not adhered to the tape 13 or can be easily peeled off.

When the Mimi tape 17 of the cover film 14 is provided at the same position as the Mimi tape 15 of the tape 13 described above, the Mimi tape 15 of the cover film 14 is made smaller than the Mimi tape 15 of the tape 13 and is color-coded (for example, yellow). And white) so that both Mimi tapes 15 and 17 can be distinguished.

On the other hand, a conductive gel layer 18 is provided on the lower surface of the disk 11A on the sticking side of the electrode element 11 (lower side in FIG. 1). The shape is retained by being dipped in the retaining material 19 formed on. The holding material 19 is provided between the label 12 and the disc 12A of the electrode element 11 and
The electrode element 11 and the electroconductive gel layer 18 are reliably brought into contact with each other by being sandwiched and adhered to the outer periphery of the holding material 19. In addition, the conductive gel layer 18 is a concave portion of the gel cover 20 which is a mount during storage.
It is housed in 21 A and prevents the conductive gel layer 18 from drying.

As the gel cover 20, as shown in FIG. 2, there is also one having a long and thin shape and holding a plurality of (for example, three) biomedical electrodes 10.

Next, with reference to FIGS. 3A to 3H, a procedure for attaching the above-mentioned living body electrode 10 to the surface of the skin 21 of the living body will be described. First, as shown in FIG. 3 (A), the stains on the skin 21 of the subject to which the biomedical electrode 10 is attached are wiped off with a cotton swab 22, and as shown in FIG. 3 (B), the terminal 11B of the electrode element 11 is removed. Terminal 23A of lead wire 23 which is a signal wire
Attach. Then hold the Mimi tape 15 and the tape 13
Is removed from the gel cover 20 to expose the conductive gel layer 18, and the biomedical electrode 10 is attached to the skin 21 of the subject as shown in FIG. 3 (C). Then, the Mimi tape 15 is peeled off as shown in FIG. 3 (D), and the biomedical electrode is shown as shown in FIG. 3 (E).
Stick 10 onto skin 21.

As shown in FIG. 3 (F), one cover film 14 is peeled off from the tape 13 with the non-adhesive surface of the Mimi tape 17, and the electrode element 11 is brought into close contact with the skin. At this time, since the lead wire 23 connected to the electrode element 11 is provided outside the cover film 14, the cover film 14 is taken out along the lead wire 23 as shown in FIG. Move to a position where external force is not applied, cut the cover film 14 from the slit 16 and remove it, as shown in FIG.
The attachment of the biomedical electrode 10 is completed as shown in FIG.

As described above, the tape 13 is reinforced when the biomedical electrode 10 is attached to the skin 21 of the subject.
Since it suffices to peel off the cover film 14 of one sheet, the biomedical electrode 10 can be attached more quickly and with less labor compared to the case of peeling off two cover films as in the conventional case. Further, the lead wire 23 is connected to the electrode element 11 and then attached to the subject, and then the cover film 14 is attached to the tape 13 after the attachment.
After peeling off and moving along the lead wire 23 to an appropriate position, the cover film 14 is cut off along the slit 16 and then removed, so that the cover film is peeled off after being attached to the subject as in the conventional case. Since it is not necessary to press and connect the lead wire 23 to the electrode element, it is possible to prevent the subject's skin 21 from being strongly pressed and causing pain.

The biomedical electrode of the present invention is not limited to the above-mentioned embodiment, but can be appropriately modified and improved. For example, in each of the above-described embodiments, the slits 16 provided in the cover film 14 are symmetrically provided on the left and right sides from the small hole 14A for penetrating the electrode element 11 toward the outer peripheral edge. Like the cover film 24 shown in FIG. 2, one slit 25A may be provided up to the outer peripheral edge like the slit 16, and the other slit 25B may be extended to the edge to be separated. In this case, the Mimi tape 15 is attached to the edge portion on the slit 25A side. Alternatively, like the cover film 26 shown in FIG.
It is also possible to determine the direction of the slit 16 so that the Mimi tape 17 is located on one side of the slit 27 (for example, the right side in FIG. 5).

[0030]

As described above, according to the present invention, as described in claim 1, since only one cover film needs to be peeled off after pasting, it is possible to remove the conventional cover film.
It is possible to easily and quickly attach the biomedical electrode without the need to remove the cover film of one sheet and without the trouble.

Further, according to the present invention, as described in claim 2, in this biomedical electrode, since the signal line is attached before attaching, the signal line is attached after attaching as in the conventional case. It is possible to solve the problem that the subject is painfully pressed by strongly pressing the electrode element.

Further, according to the present invention, as described in claim 3, the cover film has a minimum necessary size.
The tape can be reinforced by a flexible and stretchable thin film.

According to the present invention, as described in claim 4, when the cover film is peeled from the tape,
By peeling from the non-adhesive part of Mimi tape that is attached to the cover film but not attached to the tape,
It can be easily peeled off.

According to the present invention, as described in claim 5, when the tape is peeled from the mount, it is peeled from the non-adhesive part of the Mimi tape which is attached to the tape but not to the mount. Can be easily peeled off.

[Brief description of drawings]

FIG. 1 is an exploded configuration diagram showing an embodiment according to the present invention.

FIG. 2 is a plan view showing an example before use in which three biomedical electrodes are attached to one gel cover.

3 (A) to (H) are explanatory views showing a procedure for attaching a biomedical electrode.

FIG. 4 is a plan view showing another example of the cover film.

FIG. 5 is a plan view showing still another example of the cover film.

FIG. 6 is an exploded configuration diagram showing a conventional biomedical electrode.

FIG. 7 is a plan view showing an example before use in which three conventional biomedical electrodes are mounted on one gel cover.

8 (A) to (H) are explanatory views showing a conventional procedure for attaching a biomedical electrode.

[Explanation of symbols]

10 Biomedical electrode 11 electrode element 11A terminal 13 tapes 14, 24, 26 Cover film 14A small hole 15 Mimi tape 16 slits 17 Mimi tape 18 Conductive gel layer 20 Gel cover (mount) 21 skin 23 Lead wire (signal wire)

Claims (5)

[Claims] 1. A biomedical electrode in which an electrode element for detecting an electrical signal generated by a living body is attached to the skin of a living body with a tape via a conductive gel layer, the tape being flexible and stretchable. An electrode for a living body, which comprises a thin film having the above, and which is provided on a side opposite to a surface of the tape to be attached to the living body so as to be peelable after being attached to the living body. 2. An electrode for a living body, wherein an electrode element for detecting an electric signal generated by the living body is attached to the skin of the living body by a tape via a conductive gel layer, wherein the tape is flexible and stretchable. A cover film for reinforcement is provided on the side opposite to the sticking surface to the living body of the tape, which is made of a thin film having, and a small hole through which a terminal for connecting the electrode element to a signal line is provided on the cover film. A biomedical electrode, wherein a slit is provided from the small hole toward the outer peripheral edge. 3. The biomedical electrode according to claim 1, wherein the cover film has the same size and shape as the tape. 4. The biomedical electrode according to claim 1, wherein the cover film is provided with a Mimi tape having a non-adhesive portion for peeling the cover film from the tape. 5. The biomedical electrode according to any one of claims 1 to 4, wherein the tape is provided with a Mimi tape having a non-adhesive portion for peeling the tape from a mount.