JPH03128040A - Living body electrode - Google Patents

Abstract

PURPOSE:To easily collect the necessary living body signals, suppressing the influence to washing, by installing only the fixed mechanism of an electrode at a living body information collecting position of a base member installed at the measurement position of a living body, and installing an electrode part from outside the base member in use. CONSTITUTION:Six cut-opened ports 31 having a nearly circular form are formed on a base member 30, and the base member part is attached on a living body skin surface so that each opened port is positioned at six introducing positions on the breast part of an inspected patient. When an electrode part 40 is installed on a cut hole part 10 for supporting electrode, the physiological salt water is poured into a sponge member 43, and the sponge member 43 is converted to an electrolyte. An insertion guide 47 is pushed into the opened port 31. Accordingly, the top edge part of the sponge member 43 containing the physiological salt water protrudes into the opened port 31, and is directly press-attached on a living body surface 50, and at the same time, a magnet 42 is attracted on an electrode engagement member 15, and a press-attached state is maintained. In this case, the surface of the skin 50 and an electrode terminal 41 are put into the superior conduction state through the sponge member 43, and the electric signal supplied from the living body can be introduced into the electrode terminal 41, and the introduction to six places in the breast part can be introduced to an electrocardiograph.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a bioelectrode for deriving bioelectrical signals from a living body.

[Prior Art] In order to easily perform conventional body surface map electrocardiogram tests and 12-lead electrocardiogram tests, there are various types of clothing with electrodes, such as jacket-type electrodes for home treatment, in which biological electrodes are arranged on clothing. The shapes and structures have been invented.

However, in this clothing with electrodes, the electrodes are sewn onto the clothing, inserted between the clothing, etc., and are fixed to the clothing side.

In the case of biological electrodes, normal electrocardiogram information cannot be detected unless an electrolyte such as physiological saline, electric field paste, or electric field gel is interposed between the skin and the electrode.

[Problem to be Solved by the Invention] For this reason, in conventional clothing with electrodes, if an electrolyte is to be inserted, the electrolyte must be attached to the electrode portion before the clothing is worn, or Alternatively, the clothing must be turned over and attached immediately before use, making it extremely difficult to handle.

Further, since lead wires for extracting detection signals from each electrode are attached to the clothing, the lead wires are a nuisance when not in use.

Furthermore, since clothing comes into direct contact with the skin, it gets dirty easily, and if clothing gets dirty or if you plan to share it with someone else, you will have to wash it together with the electrodes, so there is no risk of damage to the electrodes. In addition, there was a high risk of insulation failure due to rust formation.

[Means for Solving the Problems] The present invention has been made for the purpose of solving the above-mentioned problems, and includes the following configuration as one means for solving the above-mentioned problems.

That is, at least one notch hole for supporting an electrode provided in a base material to be attached to a measurement site of a living body, an electrode part inserted into the notch hole, and a connection between the electrode part and the notch hole. and a locking means for locking the electrode terminal, and the electrode part is inserted into the notch hole when the electrode terminal is disposed at the base, and the electrode terminal is inserted between the living body surface of the subject and the electrode terminal. A flexible electrolyte material capable of maintaining the conductive state is provided.

[Function] In the above configuration, only the electrode fixing mechanism is attached to the biological information collection position of the base material, and the influence of washing etc. can be minimized, and the electrode part that functions as an electrode when used It can be easily attached from the outside of the base material to collect necessary biological signals.

[Example] Hereinafter, an example according to the present invention will be described in detail with reference to the drawings.

[First Embodiment] The following will explain the case where the present invention is applied to a chest electrode for collecting electrocardiogram information.

FIG. 1 is a perspective view showing a state in which a base material portion of an embodiment of the present invention is attached to a living body.

In the figure, reference numeral 10 denotes a donut-shaped electrode support notch hole disposed at a necessary location on a base material 30, at least the surface side of which is made of a magnetic material for electrode support, and 30 is a base material using a nonwoven fabric. , the electrode supporting notch IO is formed on this base material 30.
The central portion 31 is open so that the electrode portion can be inserted thereinto.

When measuring an electrocardiogram, the chest base material portion having the above-described configuration is attached to the chest of the subject in advance as shown in FIG.

In the example shown in FIG. 1, six approximately circular notch openings 31 are provided in the base material 30, and the base material portion is arranged so that each opening is located at six guiding positions on the chest of the subject. It is attached to the surface of the living body's skin.

In this case as well, the electrolyte and the like are not adhered as in the past, and the skin will not feel itchy or irritated.

When actually collecting electrocardiogram waveforms, electrocardiogram information is collected by inserting and locking the electrode section connected to the biological information processing device into the opening 31 from the outside.

With reference to FIG. 2, which is a sectional view showing a state in which the electrode part is inserted and locked into the opening 31 from the outside, the configuration of the electrode part of this embodiment and the notch hole 10 for supporting the electrode in the electrode part will be explained. The locking mechanism will be explained.

In FIG. 2, an electrode locking member 15 made of a ferromagnetic material is disposed on the outer surface of the electrode supporting notch 1° of the base member 30. However, if the electrode supporting notch 10 is made of a magnetic material, the electrode locking member 15 can be omitted.

In the electrode section 4o shown in the upper part of the figure, 41 is an electrode terminal disposed at the base inside the insertion guide 47 of the cylindrical electrode section, and 42 is a donut-shaped magnet disposed around the insertion guide 47. , 43 is a sponge member inserted into the insertion guide, and 44 is a lead wire for transmitting a biological signal detected by the electrode terminal 41 to a biological information processing device (not shown).

When the electrode section 40 having the above structure is attached to the electrode support notch IO, physiological saline is injected into the sponge member 43 to form an electrolyte. Then, insert the insertion guide 47 into the opening 3.
Push it inside 1. As a result, the tip of the sponge member 43 containing physiological saline passes through the opening 31 and is directly pressed against the living body surface 50, and at the same time, the magnet 42 is attracted to the electrode locking member 15, and the pressed state is maintained. .

At this time, the surface of the skin 50 and the electrode terminal 41 are in a good conductive state via the sponge member 43, and electrical signals from the living body can be guided to the electrode terminal 41, and the Vl of the chest
- It becomes possible to derive the lead of V6 to an electrocardiograph.

Note that this electrode section has a common configuration to all the chest electrodes of this embodiment shown in FIG.

Moreover, what is installed in the insertion guide 47 in the above description is not limited to the above-mentioned sponge member 43, but can also be a member that can transmit electrical signals from the skin 50 to the electrode terminal 41 in a good conductive state. It's good to have it. For example, other examples include electrolytic cream, conductive gel, conductive paste, and water absorbent material containing electrolyte.

Furthermore, instead of arranging the magnet 42 on the electrode side, a structure may be adopted in which only a magnet is provided on the electrode support notch 10 side and a ferromagnetic material is provided on the electrode side. At this time, it is necessary to wash the item with the magnet attached, so it is desirable to use a water-resistant plastic magnet.

In this case, since the magnet has high impact resistance and is easy to mold, all of the electrode support notch holes 10 are integrally molded with this plastic magnet, and one electrode support notch on the base material side The number of parts for the hole 10 can be reduced to a minimum of one.

Furthermore, an adhesive may be provided on the skin 50 side surface of the electrode supporting notch 10 to improve the adhesion to the skin 50. Even in this case, the electrolyte and the like are not adhered to the skin 50, and the skin does not feel itchy or get a rash.

The above description has been made regarding an example in which the bioelectrode of this embodiment is used as a chest electrode, but it can also be applied to a jacket at home. By using the electrode of this example in a jacket at home, it is easy to wear, and even if the jacket is worn for a long time, it does not cause itching or irritation of the skin.

FIG. 3 shows the subject wearing this at-home jacket.

FIG. 3 shows a jacket-shaped base material provided with four electrode support notches 10a for limb guidance and six electrode support notches 10b for chest guidance.

The configuration of each electrode support notch hole 10a, 10b is the same as the configuration shown in FIG.
, 10b is also the same as the electrode part 40 shown in FIG. 2 or a modification thereof.

Furthermore, the biological electrode of this embodiment is not limited to collecting electrocardiogram information, but can be applied to electrodes for collecting electrical signals from any living body. Further, the number of electrode supporting notch holes 10 and the number of electrode parts 40 are not limited. FIG. 4 shows an example of jacket-type clothing in which a large number of electrode supporting notches 10 and electrode sections 40 are provided.

In this embodiment, as explained above, since no electrodes are provided on the base material side, even if the base material becomes dirty, it can be easily washed. Further, since the electrode supporting notch 10 does not function as an electrical conduction path, the electrode is hardly affected by aging due to washing or the like.

As described above, according to this embodiment, the electrical conductivity does not deteriorate even after long-term use and many washings.
Easy-to-use bioelectrodes can be provided.

[Second Example] Although the above description has been made regarding an example in which magnetic force is used as a locking means for the base material 30 in which the electrode supporting notch 10 is disposed, the present invention is limited to the above example. However, any structure can be used as long as the electrode supporting notch 10 and the electrode part 40 can be properly engaged with each other.

Instead of magnetic force, hook-and-loop fasteners (so-called Velcro) are provided on both sides of the contact surface of the electrode 50 of the electrode-supporting notch 10 and the contact surface of the electrode-supporting notch 10 of the electrode section. The electrode support notch 10 and the electrode portion may be locked. An example of such a configuration is shown in FIG.

In FIG. 5, the same components as in FIG. 2 are given the same numbers. In FIG. 5, 61 and 62 are hook-and-loop fasteners.

[Third Embodiment] Similarly, the electrode support notch 10 and the electrode portion 4° may be engaged with each other using adhesive gel. In this case, as shown in FIG. 6, an adhesive gel 65 is provided on the 4° side of the electrode part, and the adhesive force of this adhesive gel 65 locks the electrode part 40 in the electrode support notch lO. Can be done.

[Fourth Embodiment] Furthermore, this electrode supporting notch 10 is constructed by attaching an eyelet made of a ferromagnetic material by caulking it to the opening 31 provided in the base material 30, and the eyelet shown in FIG. The electrode support notch 10 and the electrode part 40 may be locked by fitting the insertion guide 47 of the electrode part 40 having the configuration shown in FIG.

Furthermore, in the above explanation, the skin contacting surface of the opening 31 of the electrode support notch 10 was in an open state, but the skin contacting surface of the opening 31 was previously attached to the base material 30 integrally with an eyelet. A fixed screen such as a sponge or mesh may be provided to evenly spread the electrolytic solution contained in the sponge member 43 on the electrode section 40 side.

An example of such a configuration is shown in FIG.

In the figure, 67 is a caulk, and 68 is a screen. As shown in the figure, the sponge 48a is caulked together with the eyelet.

With this configuration, the electrolytic solution contained in the sponge member 43 and the like in the insertion guide 47 of the electrode section 40 does not drip onto the skin surface, and is evenly distributed over the skin surface to maintain a good conductive state. Can be maintained.

Moreover, even when the electrode part 40 is removed from the electrode support notch part 10, the electrolytic solution can be prevented from flowing out between the base material 30 and the skin.

Furthermore, instead of forming the electrode support notch 10 with an eyelet and attaching the screen 68 integrally with the eyelet 67, the screen 68 is sewn onto the base material 30 at the outer periphery of the electrode support notch 10. It may be.

As explained above, according to each of the examples, the electrode part is separated from the base material and the electrolyte of the electrode part is applied to the base material, compared to the conventional case where the electrode part is integrated with the base material such as a jacket. By providing the opening 31 that can be penetrated and directly contact the skin, the electrode part 40 can be attached to the living body only during actual measurement.The electrode supporting notch 10 can be attached to the living body to ensure good contact between the living body surface and the electrode. A conductive state can be achieved.

For this reason, the base material may become dirty, for example, when it is necessary to wear it on a large number of people, such as in the case of mass medical examinations, or when it is used for a long time, such as jacket-type base materials for home medical care. Even in such cases, washing, disinfection, etc. can be performed without any adverse effect on the collection of biological signals.

Therefore, discomfort to the patient, skin irritation, etc. due to small amounts of electrolyte adhering to the base material due to repeated use of the electrode will not occur.

[Effects of the Invention] As explained above, according to the present invention, only the electrode fixing mechanism is attached to the biological information collection position of the base material, and the influence of washing etc. can be minimized, and the electrodes cannot be fixed during use. The necessary biological signals can be collected by easily attaching the electrode section having the function of .

[BRIEF DESCRIPTION OF THE DRAWINGS] Fig. 1 is a diagram showing a state in which a bioelectrode according to an embodiment of the present invention is attached to the chest of a subject, and Fig. 2 is a diagram showing the configuration of the electrode section and electrode support of this embodiment. FIG. 3 is a cross-sectional view showing how the electrode part is attached to the notch hole for electrode support, and FIG. Figure 4 is a diagram showing how the electrode of this embodiment, in which the electrode part is attached to the notch for supporting the electrode, is attached to a subject when applied to another biosignal collecting jacket. The figure is a cross-sectional view showing the structure of the electrode part of the second embodiment of the present invention and the state in which the electrode part is attached to the electrode support notch hole. 7 is a sectional view showing the configuration and the mounting state of the electrode part in the notch hole for electrode support, and FIG. It is a sectional view showing a state. In the figure, 10... Notch hole for electrode support, 15... Electrode locking member, 30... Base material, 31... Opening, 40...
- Electrode part, 41... Electrode terminal, 42... Magnet, 43
... Sponge member, 44... Lead wire, 47...
Insertion guide, 50...Skin surface, 61.62...Loop fastener, 65...Adhesive gel, 67...Caulking, 68
...It's a screen. Figure 2 Figure 5 Figure 6

Claims (7)

[Claims] (1) at least one notch hole for supporting an electrode provided in a base material to be attached to a measurement site of a living body; an electrode portion inserted into the notch hole; and the electrode portion and the notch hole. and a locking means for locking the electrode terminal arranged at the base, and the electrode portion is inserted into the notch hole portion when the electrode terminal disposed at the base portion is locked, and the electrode terminal is inserted into the notch hole portion and the electrode terminal is inserted into the living body of the subject. A bioelectrode, characterized in that a flexible electrolyte material capable of maintaining conduction between the surface and the electrode terminal is disposed. (2) The locking means is constituted by a pair of notch holes and electrode parts, a magnetic material provided on one part, and a magnet provided on the other part. bioelectrode. (3) The bioelectrode according to claim 1, wherein the locking means is constituted by a hook-and-loop fastener provided as a pair of a notch hole portion and an electrode portion. (4) The bioelectrode according to claim 1, wherein the locking means is comprised of an adhesive member provided on at least one of the notch hole portion and the electrode portion. (5) The bioelectrode according to any one of claims 1 to 4, wherein the electrolyte material is made of a gel-like dielectric substance. (6) The bioelectrode according to any one of claims 1 to 4, wherein the electrolyte material is made of sponge electrolytic cream. (7) The base material is made of non-woven fabric and has notched holes arranged at the positions of each biological information measurement site of the subject, and electrodes are locked in each notched hole to measure biological information. The bioelectrode according to any one of claims 1 to 6, characterized in that the bioelectrode performs the following.