JP4976065B2 - Biological electrodes and fixed seals - Google Patents

Description

  The present invention relates to a biological electrode and a fixing seal used to fix a lead wire to the biological electrode.

  For measurement of biological information such as an electrocardiogram, a biological electrode (hereinafter, also simply referred to as “electrode”) is generally used. As a conventional electrode, for example, there is one described in Patent Document 1. In the electrode described in this document, an attachment portion for detachably connecting a lead wire to the electrode is provided in advance in the center of the plane of the base material that can be attached to the surface of the living body.

When attaching an electrode having a mounting portion to which a lead wire is detachably connected to the surface of a living body, as shown in FIG. 16, the base material 1 is affixed to the skin of a patient or a subject (not shown), After connecting the connector part 4 of the lead wire 3 to the mounting part 2, the adhesive cover having a sticking surface larger than the base material 1 is applied to the skin covering the base material 1, thereby fixing the lead wire 3 Often done. Such a fixing method is performed, for example, when an examination that requires electrode attachment over a long period of time is performed, or when an exercise electrocardiogram accompanied by body movement of a patient or a subject is performed.
JP-A-11-137529

  However, in the above conventional fixing method, an adhesive cover larger than the base material is used. Therefore, the adhesive cover is directly attached to the skin of the patient or the subject, and the application area when the electrode is attached is increased. For this reason, there exists a problem that the discomfort of sticking, such as a feeling of tension and an itch given to a patient or a subject at the time of electrode wearing, increases.

  This invention is made | formed in view of this point, and it aims at providing the biomedical electrode and fixed seal | sticker which can reduce the sticking discomfort of the patient at the time of biological electrode mounting | wearing or a test subject.

The biological electrode according to the present invention includes a planar base material to be attached to the surface of the biological body, a mounting portion that is provided at the center of the flat surface of the base material and is detachably connected to a connector portion of a lead wire, and the mounting A fixed seal that covers the connector portion connected to a portion within a plane region of the base material and fixes the connector portion to the mounting portion, and the fixed seal is a part of a planar outer peripheral portion of the base material. Adhering to other parts of the outer peripheral part of the plane, the structure is attached so as to be able to contact and separate.

  In the biological electrode according to the present invention, in the above configuration, the fixed seal has a substantially V shape, and the fixed seal is attached to the outer peripheral portion of the plane at two ends of the shape in a freely detachable manner. The structure is fixed to the flat outer peripheral portion at an intermediate position between the two end portions on the fixed seal.

  The biomedical electrode according to the present invention employs a configuration in which, in the above configuration, a gap is formed between the remaining two end portions, and the lead wire side of the connector portion is disposed in the gap.

  The biological electrode according to the present invention employs a configuration in which, in the above configuration, the fixed seal is disposed at a position covering only a partial region of the connector portion.

  The biomedical electrode device according to the present invention employs a configuration including the biomedical electrode and the connector unit.

  The fixed seal according to the present invention is a fixed seal that fixes a connector portion of a lead wire to a mounting portion provided in a plane center portion of a base material of a biological electrode, and is detachably connected to the mounting portion. A substantially V-shaped seal body that covers the connector portion within the planar region of the base material, and two end portions of the seal body in the shape and the two ends on the seal body. And an adhesive portion that adheres an intermediate position of the portion to the planar outer peripheral portion of the base material and fixes the connector portion covered by the seal body to the attachment portion.

  The fixed seal according to the present invention further includes an annular seal disposed at a position surrounding the attachment portion in the above configuration, and the intermediate position of the seal body is fixed to a part of the annular seal, The bonding portion adopts a configuration in which the annular seal is bonded to the outer peripheral portion of the plane, and the two end portions are bonded to and separated from other portions of the annular seal.

  ADVANTAGE OF THE INVENTION According to this invention, the discomfort in sticking of the patient at the time of biological electrode mounting | wearing or a test subject can be reduced.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the following embodiments, the same reference numerals are assigned to the same elements.

(Embodiment 1)
FIG. 1 is a top view of an example of use of the biomedical electrode according to Embodiment 1 of the present invention. FIG. 2 is a perspective view of the usage example of FIG. Reference numeral 1 represents a base material, reference numeral 2 represents a mounting portion, reference numeral 3 represents a lead wire, reference numeral 4 represents a connector section, and reference numeral 5 represents a cover.

  The electrode of the present embodiment includes a base material 1, a mounting portion 2 and a cover 5. The base material 1 is a planar member that can be attached to the surface of a living body, and the mounting portion 2 is provided at the center of the flat surface of the base material 1 and is detachable from the connector portion 4 provided at the end of the lead wire 3. The cover 5 as a fixture or a fixing member covers the connector part 4 connected to the attachment part 2 within the plane region of the base 1 and fixes the connector part 4 to the attachment part 2. It is. The electrode and the connector portion 4 of the lead wire 3 can constitute a biological electrode device.

  Here, the details of the structure of the base material 1, the attachment portion 2, and the lead wire 3 (including the connector portion 4) will be described with reference to FIG. The base material 1 has a non-woven fabric type, foam type, or film type flat member 1a, and an adhesive layer (not shown) is provided on the back surface (surface to which the biological surface is attached). Further, a hole is provided in the center of the plane, and the hole is filled with the electrolyte gel 1b. The attachment portion 2 is formed by fitting a magnetic body 2b made of, for example, ferrite into a hat-shaped accommodation portion 2a. In addition, the planar member 1a is pressure-bonded to the lower portion of the accommodating portion 2a in a state where the attachment portion 2 is aligned with the central portion of the surface of the base material 1 (the surface opposite to the surface attached to the biological surface). In addition, an opening is provided in the upper portion of the accommodating portion 2a, and the magnetic body 2b is exposed from the opening. The connector portion 4 of the lead wire 3 is provided with a magnet 4a having a diameter smaller than that of the opening protruding from the connector portion 4. For this reason, when the connector part 4 is brought close to the attachment part 2, the magnet 4a and the exposed magnetic body 2b are joined by the magnetic force of the magnet 4a. In this way, the connector part 4 is connected to the attachment part 2.

  In addition to the above, there are various structures of the respective parts including the base material 1, the attachment part 2, and the lead wire 3, and the present invention can be applied to various structures. In addition, there are various types of electrodes such as a hook type as well as a magnet type. The present invention is particularly suitable for use with a magnet-type electrode, but can be applied to any type of electrode in which lead wires are separately prepared and the lead wires are connected only during use. Hereinafter, in order to simplify the description, details of the structure of each part will not be mentioned.

  The cover 5 includes a cover seal having a size and a shape that can cover the connector portion 4 connected to the mounting portion 2 without protruding from the planar region of the base material 1, that is, within the planar region of the base material 1. ing. In the present embodiment, the cover seal constituting the main body of the cover 5 has a V shape (shown as an inverted V shape in FIG. 4), as shown in FIG. It has a shape extending from the portion 7 and branching toward the two tip portions 8. Therefore, the shape of the cover seal can be a U-shape or the like. The two extending portions 10 extending from the proximal end portion 7 toward the two distal end portions 8 form an included angle θ, and a gap portion 11 is formed between the two distal end portions 8. Further, in the region of the base end portion 7 side of the cover seal, a fixing portion 6 fixed to a part of the planar outer peripheral portion of the substrate 1 is provided as a mounting portion, and the fixing portion 6 of the cover seal is provided. In all regions except the region, an adhesive portion 9 (for example, an adhesive layer) that is detachably bonded to the other portion of the planar outer peripheral portion of the substrate 1 is provided as a mounting portion.

  Therefore, the cover 5 is fixed to a part of the planar outer peripheral portion of the substrate 1 at the base end portion 7, the lead wire 3 side of the connector portion 4 is disposed between the tip end portions 8, and the cover 5 is attached to the tip end portion 8. Then, by adhering to the other part of the outer periphery of the flat surface of the substrate 1 so as to be able to contact and separate, the fixing of the connector part 4 to the attachment part 2 is completed as shown in FIGS. Thus, since the lead wire 3 side of the connector portion 4 is disposed between the tip end portions 8, only the connector portion 4 of the lead wire 3 can be covered, whereby the rotation of the connector portion 4 is within the included angle θ. The lead wire 3 can be made freely movable. Further, in the present embodiment, the lead wire 3 is made freely movable, that is, the lead wire 3 itself is not fixed to the substrate 1. This is advantageous in the case of a structure in which the base of the lead wire 3 and the substrate 1 are separated from each other when the connector portion 4 is connected to the attachment portion 2 (see, for example, FIG. 3). That is, when the lead wire 3 near the base is pressed against the base material 1 with the cover 5, the connector portion 4 may float from the attachment portion 2. On the other hand, when the fixing method of the present embodiment is used, the connector portion 4 can be prevented from floating from the attachment portion 2.

  Further, since the cover 5 is attached to the base material 1 at three ends including the base end portion 7 and the two distal end portions 8, compared to the case where the cover 5 is attached to the base material 1 at two ends. Thus, the possibility that the electrode is peeled off from the surface of the living body can be reduced. This is because the tensile force applied to the lead wire 3 that can be generated when the electrode is used, and the force in the direction in which the connector portion 4 is detached from the attachment portion 2 can be dispersed in three places. In the present embodiment, the fixing portion 6 is provided at the base end portion 7 and the bonding portion 9 is provided at the two tip end portions 8, but the fixing portion is provided between the base end portion 7 and one tip end portion 8. 6 may be provided, and the adhesive portion 9 may be provided only at the other end portion 8. Or you may provide the adhesion part 9 in all these three edge parts.

  In addition, the base end portion 7 can be defined as an intermediate position between the two distal end portions 8 on the cover 5, but the intermediate position is not necessarily a complete intermediate position of the cover 5, In addition, a position displaced toward the one end portion 8 side from the intermediate position is also included.

  Referring to FIGS. 1 and 2 again, the arrangement position of the cover 5 is a position that covers the connector portion 4 within a plane region of the base member 1 excluding a partial region of the connector portion 4. That is, the adhesive portion 9 of the cover 5 does not cover a part of the connector portion 4. For this reason, when the adhesion part 9 consists of an adhesive, it can suppress that an adhesive adheres to the connector part 4 to a small quantity, and the contamination of the connector part 4 can be decreased.

  FIG. 5 is a diagram illustrating an example of attaching the cover 5 to the base material 1. The substrate 1 and the cover 5 are formed in advance as separate bodies. Then, the fixing portion 6 of the cover 5 is fixed to a predetermined or arbitrary portion of the planar outer peripheral portion of the substrate 1. The fixing portion 6 may be a means that cannot be separated once fixed, or a means that can be separated. Thereafter, the bonding portion 9 of the cover 5 is bonded to the substrate 1 so as to be able to contact and separate. Thus, since the cover 5 can be retrofitted to the base material 1 formed separately, this cover 5 can be applied to all kinds of existing electrodes.

  As can be seen from FIGS. 1 and 5, the cover 5 covers a part of the connector portion 4 when the connector portion 4 is connected to the attachment portion 2, and the connector portion 4 is connected to the attachment portion 2. If not, it is arranged at a position that does not cover the mounting portion 2. For this reason, when the electrode is not used, it is possible to prevent the adhesive of the cover 5 from adhering to the attachment portion 2 and soiling the attachment portion 2.

  As described above, according to the present embodiment, the connector part 4 connected to the attachment part 2 is covered with the cover 5 in the plane region of the base 1 and the connector part 4 is fixed to the attachment part 2. 5 can be prevented from being applied directly to the skin, the application area when the electrode is mounted can be reduced, and the discomfort applied to the patient or subject can be reduced.

(Embodiment 2)
FIG. 6 is a top view of an example of use of the electrode according to Embodiment 2 of the present invention. Moreover, FIG. 7 is a figure which shows the adhesion part of the cover which concerns on this Embodiment.

  The cover 5a of the present embodiment is the same as the cover 5 described in the first embodiment, but is different from the cover 5 in that the cover 5a covers substantially the entire planar area of the substrate 1.

  The cover 5 a is provided with a gap 11 a that is smaller than the gap 11 formed in the cover 5. The cover 5a, like the gap portion 11 of the first embodiment, allows the lead portion 3 to freely move within a certain range and allows the lead wire 3 to move freely, but covers almost the entire area of the connector portion 4. Furthermore, the cover 5a is provided with a pressure-sensitive adhesive layer as the adhesive portion 12 in the entire region excluding the region that contacts the connector portion 4 during use in the region of the substrate facing surface. Thereby, fixation of the connector part 4 can be strengthened more, and at the same time, it is possible to prevent the adhesive from adhering to the connector part 4 or the attachment part 2 and soiling the connector part 4 or the attachment part 2.

  The cover 5a of the present embodiment is not provided with the fixing portion 6 described in the first embodiment, but the fixing portion 6 may be provided in a part of the substrate facing surface region of the cover 5a.

(Embodiment 3)
FIG. 8 is a diagram showing a usage example of the electrode according to Embodiment 3 of the present invention. The cover 5b of the present embodiment is the same as the cover 5 described in the first embodiment, but is different from the cover 5 in that it has a strip shape.

  As a procedure for fixing the connector portion 4 with such electrodes, one end portion of the cover 5b in the longitudinal direction is fixed to the outer periphery of the flat surface of the substrate 1, or an electrode with the cover 5b already fixed is prepared (FIG. 8). (A)) The connector part 4 is connected to the attachment part 2, and the other end part in the longitudinal direction of the cover 5b is brought into contact with and adhered to the substrate 1 while covering the lead wire 3 with the cover 5b (FIG. 8 ( b)). Thereby, the cover 5b presses the connector part 4 at the middle part of the band, and adheres to the base material 1 at both ends of the band so as to be able to contact and separate. Thus, the cover 5b can be adhered to the substrate 1 very easily by using the belt-like cover 5b.

  The above-described fixing procedure is based on the assumption that the fixing portion 6 described in the first embodiment is provided at one end of the cover 5b. However, the same procedure is performed even when the fixing portion 6 is not provided in the cover 5b. An effect can be realized. Moreover, as an adhesion part, the thing similar to embodiment mentioned above can be used.

(Embodiment 4)
FIG. 9 is a diagram showing a configuration of a cover according to Embodiment 4 of the present invention.

  The cover 5c of the present embodiment is the same as the cover 5 described in the first embodiment, but the cover 5c of the present embodiment includes a V-shaped cover seal and an annular base seal. Has a unique configuration.

  More specifically, the base end portion 14 of the cover seal constituting the main body of the cover 5 c is fixed to a part of the base seal 13 in advance. Further, the base seal 13 is formed with a size and a shape so as to surround the mounting portion 2 within the planar region of the base material 1. For example, a pressure-sensitive adhesive layer (not shown) is provided as a base seal bonding portion that bonds the base seal 13 to the substrate 1 over the entire area of the base seal 13 facing the substrate. Furthermore, a surface fastener is provided over the entire area of the other surface of the base seal 13 (the surface opposite to the substrate facing surface). In addition, surface fasteners that are paired with surface fasteners provided on the base seal 13 are provided on the entire area including the two tip portions 15 on the base material facing surface of the cover seal. It has a function as a cover seal adhering part that adheres the seal to the base seal 13 in a freely detachable manner. The aforementioned base seal adhesive portion and cover seal adhesive portion constitute the adhesive portion of the cover 5c of the present embodiment.

  FIG. 10 is a diagram illustrating a usage example of the cover 5c. As a procedure for fixing the connector portion 4 with the cover 5c, a conventional biomedical electrode not provided with a cover, a lead wire 3, and a cover 5c are prepared (FIG. 10A), and the cover is not provided. A base seal 13 is attached to the base material 1 while surrounding the mounting portion 2 of the base material 1 of the conventional biological electrode, the connector portion 4 is attached to the mounting portion 2, and the tip portion 15 of the cover 5c is attached to the cover 5c. Then, the connector portion 4 is covered and contacted with the base seal 13 to be bonded (FIG. 10B).

  By using the cover 5c having such a mounting portion, it is possible to realize strong lead wire fixation without adding any special change to the conventional biological electrode. In particular, when a hook-and-loop fastener is used as the adhering means, it is advantageous if the cover 5c is configured as in the present embodiment. In addition, since the member for attaching the cover 5c to the base material 1 is formed in an annular shape, it is possible to easily attach a cover seal having a V shape.

(Embodiment 5)
FIG. 11 is a top view showing an example of use of the electrode according to Embodiment 5 of the present invention. 12 is a perspective view of the usage example of FIG. 11, and FIG. 13 is a side view when the usage example of FIG. 11 is viewed from above in FIG.

  The cover 5d of the present embodiment is the same as the cover 5 described in the first embodiment, but is different from the cover 5 in that it is formed integrally with the base material 1. The cover 5 d forms a pocket that can store the connector portion 4 together with the base material 1. By forming the cover 5d integrally with the base material 1, it is possible to save time and effort for positioning the base material 1 and the cover 5d. Further, in order to realize a stronger fixation of the connector part 4, as shown in FIG. 13, it is necessary to provide a connector housing part 17 of an appropriate size while narrowing the left and right sides 16 around the opening of the pocket. preferable.

  FIG. 14 shows a modification of the electrode according to the present embodiment, and FIG. 15 shows a side view thereof. The cover 5e shown here forms a loop through which the connector portion 4 can be inserted together with the base material 1. Also in this example, since the base material 1 and the cover 5e are formed integrally as in the case of the cover 5d, it is possible to save the labor of alignment.

  The first to fifth embodiments of the present invention have been described above. However, 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. That is, the configuration, structure, application, and the like described in each embodiment are examples, and it is obvious that various changes and modifications to these examples are possible within the scope of the present invention. For example, some features described in Embodiments 1 to 5 can be combined as appropriate. Further, the structure of each of the living body electrode and the lead wire connector portion should not be limited to only those described in each embodiment, and there may be various modifications.

The top view which shows the usage example of the biomedical electrode which concerns on Embodiment 1 of this invention. 1 is a perspective view of the usage example of FIG. The figure which shows the structural example of the magnet type biomedical electrode The figure which shows the general form of the cover which concerns on Embodiment 1 of this invention. The figure which shows the mounting structure of the base material and cover which concern on Embodiment 1 of this invention The figure which shows the usage example of the electrode for biological bodies which concerns on Embodiment 2 of this invention. The figure which shows the adhesion part of the cover which concerns on Embodiment 2 of this invention. The figure which shows the usage example of the electrode for biological bodies which concerns on Embodiment 3 of this invention. The figure which shows the structure of the cover which concerns on Embodiment 4 of this invention. The figure which shows the usage example of the cover which concerns on Embodiment 4 of this invention The top view of the usage example of the biological electrode which concerns on Embodiment 5 of this invention The perspective view of the usage example of FIG. Side view of the usage example of FIG. The figure which shows the modification of the biomedical electrode which concerns on Embodiment 5 of this invention. 14 is a side view of the modification of FIG. Diagram for explaining the conventional lead wire fixing method

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Base material 2 Attaching part 5, 5a, 5b, 5c, 5d, 5e Cover 6 Adhering part 7, 14 Base end part 8, 15 Tip part 9, 12 Adhesive part

Claims (7)

A planar substrate to be applied to the surface of a living body;
An attachment portion that is provided in the center of the plane of the base material and is detachably connected to the connector portion of the lead wire;
A fixing seal that covers the connector portion connected to the attachment portion within a planar region of the base material, and fixes the connector portion to the attachment portion;
With
The fixed seal is fixed to a part of the planar outer peripheral part of the base material, and is adhered to and separated from the other part of the planar outer peripheral part.
A biomedical electrode. The fixed seal has a substantially V shape,
The fixed seal is detachably bonded to the planar outer peripheral portion at two ends of the shape, and is fixed to the planar outer peripheral portion at an intermediate position between the two ends on the fixed seal.
The biological electrode according to claim 1. A gap is formed between the two ends,
The lead wire side of the connector part is arranged in the gap,
The biomedical electrode according to claim 2. The fixed seal is disposed at a position that covers only a partial region of the connector portion.
The biological electrode according to claim 1. The biomedical electrode according to claim 1,
The connector portion;
A biological electrode device comprising: A fixed seal for fixing the connector portion of the lead wire to the mounting portion provided in the plane center portion of the base material of the biomedical electrode,
A substantially V-shaped seal body that covers the connector portion detachably connected to the attachment portion within a planar region of the base material;
The seal body is provided with two end portions of the shape of the seal body and an intermediate position between the two end portions on the seal body adhered to a planar outer peripheral portion of the base material to cover the seal body. An adhesive part for fixing the broken connector part to the attachment part;
A fixed seal comprising: An annular seal disposed at a position surrounding the attachment portion;
The intermediate position of the seal body is secured to a portion of the annular seal;
The bonding portion bonds the annular seal to the planar outer peripheral portion, and bonds the two end portions to other portions of the annular seal so as to be freely separated from each other.
The fixed seal according to claim 6.

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