JPH0417164Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a pad for a biological stimulation electrode, and particularly to a pad applicable to a biological stimulation electrode integrated with a small-sized low-frequency treatment device.

[Conventional technology]

(1) Background of the invention In general, a bioelectrode is a conductor that comes into contact with a living body to guide electrical phenomena or electrical stimulation, and it can be roughly divided into two types. That is, there are biological induction electrodes for deriving electrical phenomena within a living body, and biological stimulation electrodes for introducing electrical stimulation from the outside into a living body.

For example, bioinduction electrodes are used to derive potentials at two points on the body surface from within the body and input them into an electrocardiograph to output an electrocardiogram, while biostimulation electrodes are used to derive potentials at two points on the body surface from within the body and input them into an electrocardiograph to output an electrocardiogram. It is used to introduce pulsed current into living bodies to relieve muscle stiffness and neuralgia.

However, it is not preferable to bring any of the above electrodes into direct contact with a living body for the following reasons.

Firstly, since the electrode plate constituting the electrode is made of metal, it is difficult for it to come into close contact with the skin surface of a living body.Secondly, due to the contact resistance generated between the skin surface of the living body and the electrode plate, electrical It is difficult to accurately guide the phenomenon and electrical stimulation; and third, because it is used by a large number of patients, pathogens and skin dirt can adhere to the electrodes, making them unhygienic. Infection becomes a problem.

For this reason, both the bioinduction electrode and the biostimulation electrode, as shown in FIG.
and a pad 30 that can be adhered to the electrode plate. This pad 30 is made of a conductive and adhesive hydrogel layer, and when in use, one side 42
is adhered to the electrode plate 20 and the skin surface 5 of the living body.
0 and the other surface 41 is brought into close contact with the other surface 41.

In other words, in addition to the electrode plate, the bioelectrode is composed of a pad made of a hydrous gel layer that is both conductive and adhesive. By making this pad removable from the electrode plate, the first to third points mentioned above are simultaneously overcome.

The present invention focuses on the following parts that have such significance:
In particular, the present invention relates to a pad for a biological stimulation electrode that can be applied to a small-sized low-frequency treatment device.

(2) Conventional Example As shown in FIG. 7A, a conventional low frequency treatment device has a first electrode plate 5 and a second electrode plate 6 at the tips of two padded cords 8 and 9 connected to its main body 7. is attached.

A first pad 1 and a second pad 2 are detachably attached to these two separate electrode plates 5 and 6.

When using this low frequency treatment device, the first pad 1 and the second pad 2 are placed in the first recess 5A and the second recess 6.
After being adhered to the first electrode plate 5 and the second electrode plate 6 by being received in A, the surface thereof is brought into close contact with the skin surface of, for example, both shoulders.

[The problem that the idea aims to solve]

However, with the miniaturization of electronic components, the above-mentioned low-frequency treatment devices are also shifting from large ones to smaller ones, and recently, as shown in Figure 7B, small, handy-type This led to the proposal of a frequency therapy device.

This small low frequency treatment device has its first electrode plate 5'
and the second electrode plate 6' are connected to the pad cords 8, 9 (seventh
It is designed so that it can be attached directly to the main body 7 without going through the device shown in Figure A).

In other words, in the small-sized low-frequency treatment device, the semicircular first electrode plate 5' and second electrode plate 6' constituting the biostimulation electrode are integrated with the main body 7' and are arranged adjacent to each other. has been done.

A first pad 1' and a second pad 2' corresponding to the first electrode plate 5' and second electrode plate 6' are removable.

However, the fact that such small pads 1' and 2' must be separately attached and detached from the electrode plates 5' and 6' each time they are used means that the attachment and detachment operations are performed twice, and the user It's extremely bothersome.

Also, each time you attach or detach, this small pad 1'
and 2' directly with the fingers of the hand, and press each concave part 5.
Reception into and removal from A' and 6A' is an extremely difficult operation, since the pads 1', 2' and the corresponding recesses 5A', 6A' are approximately of the same size. This becomes even more difficult because the hydrogel layer constituting both pads 1' and 2' is sticky, so that the fingers of the hand and the hydrogel layer come into close contact with each other. Therefore, the pads 1', 2' are connected to the electrode plates 5',
It takes time to adhere to 6'.

Furthermore, since the small pad is directly held with the fingers of the hand, dirt such as dirt and dust adhering to the fingers of the hand adheres to the entire water-containing gel layer, causing a loss of conductivity and adhesiveness.

In particular, the loss of adhesiveness of the pads can cause the pads to fall off from the treatment device and remain in close contact with the patient's skin when the pads are removed from the patient's skin together with the small low-frequency treatment device after treatment. make you feel uncomfortable. This is because the pad conforms to the surface of the body's skin more easily than a metal electrode plate.

In short, conventionally, when trying to attach and detach the corresponding pads to the two electrode plates of a small low-frequency treatment device, the two small pads were formed separately, and the degree of adhesion to the electrode plates was low. ,
There are problems in that both the number of attachment and detachment operations and the attachment and detachment operation themselves require time and effort, and that they tend to fall off from the small-sized low-frequency treatment device.

An object of the present invention is to easily and quickly attach and detach a pad for a biostimulation electrode in a small-sized low-frequency treatment device, and to prevent the pad from falling off.

[Means to solve the problem]

The above problem is solved by a first pad consisting of a conductive and adhesive first living body-side hydrogel layer and a first electrode-side hydrogel layer that are bonded to each other by sandwiching one side of an insulating base sheet; A conductive and adhesive second layer is bonded to the other side of the insulating base sheet by sandwiching the other side of the insulating base sheet.
A second pad consisting of a hydrogel layer on the living body side and a hydrogel layer on the second electrode side is integrally attached to the main body of the small-sized low-frequency treatment device having an attachment/detachment notch, and the adjacent first electrode plate and the second pad The central part of the insulating base sheet is continuously exposed between the first pad and the second pad, and the central part and the first pad are respectively provided corresponding to the electrode plates. An adhesive layer is provided on at least a portion of one side of the peripheral edge of the insulating base sheet that protrudes outward from the pad and the second pad, and is capable of being adhered to the small-sized low-frequency treatment device main body. This problem can be solved by using a pad for biological stimulation electrodes.

[Effect]

As described above, in the present invention, as shown in FIG. 1, one side of the insulating base material sheet 300 is part 310 and the other side part 32
0 is provided with a first pad 100 and a second pad 200, respectively, and both pads 100 and 200 are provided.
The center portion 330 of the insulating base sheet 300 is continuously exposed throughout the space.

Therefore, both pads 100 and 200 are connected in an insulated manner via the insulating base sheet 300.

Further, as is clear from FIG. 1, in the present invention, the central portion 330 of the insulating base sheet 300
An adhesive layer 400 is provided on at least a portion of one side of the peripheral edge portion 340 of both pads 100, 200 that protrudes outward.

Therefore, by holding the peripheral portion 340 with the fingers of the hand, the first and second pads 100 and 200, which are connected to each other in an insulating state, can be held without directly touching the pads 100 and 200.
It can be attached to and detached from the first and second electrode plates 500 and 600 of the small-sized low-frequency treatment device main body 700 at the same time. Furthermore, the adhesive layer 400 is attached to the compact low frequency treatment device main body 700.
Since it can be adhered to the small-sized low-frequency treatment device main body 700, the adhesive strength to the small-sized low-frequency treatment device main body 700 is extremely large compared to the conventional case where the pad was adhered only by the adhesiveness of the pad. This has made it possible to prevent the pads from falling off from the small-sized low-frequency treatment device.

Therefore, both the number of times of attachment and detachment operations and the attachment and detachment operations themselves require less effort and time than before, and falling off from the small-sized low-frequency treatment device is now prevented.

As described above, according to the present invention, the biostimulation electrode pad can be attached and detached easily and quickly in the small-sized low-frequency treatment device, and it is now possible to prevent the pad from falling off.

〔Example〕

Hereinafter, the present invention will be explained by way of examples and with reference to the accompanying drawings.

FIG. 2 is a diagram showing a first embodiment of the present invention.

In FIG. 2A, reference numeral 100 is a first pad, 200 is a second pad, and 300 is an insulating base sheet.

The first and second pads 100 and 200 correspond to adjacent first and second electrode plates 500 and 600 that are integrally provided with the small low frequency treatment device main body 700 (FIG. 1), Each is provided.

Since the first and second electrode plates 500, 600 are disc-shaped in this embodiment, both pads 10
0,200 is also formed into a flat semi-cylindrical shape as a whole.

The insulating base sheet 300 has one side 3
10 and the other side portion 340 are made of a hygroscopic material, for example Bemberg nonwoven fabric.

In addition, the central portion 330 and the peripheral portion 340 are provided with a water-repellent material, such as a mixture of self-crosslinking acrylic and titanium oxide, on the surface of the Bemberg nonwoven fabric, and an adhesive layer 400, such as an acrylic adhesive, on the back surface of the Bemberg nonwoven fabric. It is formed by cloth (Fig. 2 A, C).

The process of forming the water-repellent member will be described more specifically as follows.

That is, the surface of the Bemberg nonwoven fabric is first coated with a mixture of self-crosslinking acrylic and titanium oxide, then dipped in silicone, and finally dried.

The adhesive layer 400 has a central portion 330 and a peripheral portion 34.
0 may be provided over the entire back surface of the
As shown in FIG.
10 and a portion 420 of the back surface of the peripheral portion 340,
Each may be provided.

The first pad 100 is formed from a conductive and adhesive first living body-side hydrogel layer 110 and a first electrode-side hydrogel layer 120 sandwiching one side 310 of the insulating base sheet 300, It has a two-layer structure.

The first living body side hydrogel layer 110 can be adhered to the skin surface of the living body, and the first electrode side hydrogel layer 120 can be adhered to the electrode plate surface. Both are shown in Figure 2B.
As shown in FIG. 3, the first hydrogel columns 113, 114 passing through the holes 311, 312 in the one side 310 of the insulating base sheet 300 are connected to each other and electrically connected. has been done.

Regarding the second pad 200, the conductive and adhesive second living body-side hydrogel layer 210 and the second electrode-side hydrogel layer 220 are bonded to each other while sandwiching the other side 320 of the insulating base sheet 300. As is clear from FIGS. 2A and 2B, the structure itself is exactly the same as the first pad 100, except that it is different from the first pad 100.

Between the pads 100 and 200, the entire center portion 330 of the insulating base sheet 300 is continuously exposed. That is, the two pads 100, 200 face each other via the exposed central portion 330 and are connected in a completely insulated state.

Furthermore, an insulating base sheet 30 is provided outwardly of both pads 100 and 200 so as to surround them.
The peripheral edge 340 of 0 is protruding.

If this peripheral portion 340 is grasped with the fingers of the hand and both pads 100, 200 are attached to the small-sized low-frequency treatment device main body 700, the action of the adhesive layer 400 will prevent them from falling off, as will be described later. That is, this has the effect of preventing the pad from falling off from the small-sized low-frequency treatment device.

Next, a second embodiment of the present invention shown in FIG. 3 will be described.

What differs from the first embodiment (FIG. 2) is the manner in which adhesive layers are formed on the back surfaces of the central portion 330 and peripheral portion 340 of the insulating base sheet 300.

That is, the adhesive layer in the second embodiment
30 and a part of the peripheral portion 340, for example, as shown in the figure, a plurality of adhesive layers 411, 412...
421, 422... are formed.

Regarding other configuration conditions, the first embodiment (second embodiment)
Since it is exactly the same as in Figure), its explanation will be omitted.

Hereinafter, the operation of the present invention having the above configuration will be explained in the fourth section.
This will be explained based on the diagram.

First, hold the peripheral edge part 340 between two fingers and turn the first and second electrode-side hydrogel layers 120, 220 downward, and insert the first recess 500A and the Both gel layers 120, 22 are placed on the first and second electrode plates 500, 600 in the two recesses 600A.
At the same time, the adhesive layers 410 and 420 are adhered to the central portion 730 and the peripheral portion 720 of the compact low-frequency treatment device main body 700, respectively.

Thereby, both pads 100, 200 can be bonded to both electrode plates 500, 600, central portion 730, and peripheral portion 720 at the same time without touching them directly.

In this state, hold the small low frequency treatment device main body 700 with both pads 100, 200 attached in your hand, and apply it to the skin surface of the human body's hands, feet, etc. from the first and second recesses 500A, 600A. The exposed first and second living body side hydrogel layers 110 and 210 are brought into close contact. As a result, both the pads 100, 200 and the main body 700 come into close contact with the living body.

When the treatment is finished, the small low frequency treatment device main body 70
0 and peel off the gel layer 110, 210 from the skin surface. In this case, according to the present invention, the adhesive layer 41
0.420, the pad will not fall off from the small low frequency treatment device due to its adhesive action.

Holding the peripheral portion 340 between the fingers again, glue the first and second electrode-side hydrogel layers 120 and 220 from the first and second electrode plates 500 and 600, and the adhesive layer 410 from the center portion 730. layer 420 to peripheral portion 720
Peel each one off. As a result, both pads 10
The operation of peeling off the electrode plates 500 and 600 from both electrode plates 500 and 600 can also be performed at the same time without touching the electrode plates 500 and 600 directly.

The biostimulation electrode pad according to the present invention which exhibits such effects can be manufactured, for example, by the following method.

That is, as shown in FIG. 5, a hygroscopic member, for example, a water-repellent member in which holes are formed in areas corresponding to one side portion 310 and the other side portion 320 from the upper surface of a base sheet 300 made of Bemberg nonwoven fabric; For example, a mixture of self-crosslinking acrylic and titanium oxide is applied, then dipped in a liquid containing silicone and dried.
Apply acrylic adhesive to all but 0. As a result, an adhesive layer is provided on the central portion 330 and the peripheral portion 340. In this way, if the stock solution of the acrylic hydrogel, which has conductivity and adhesiveness, is infiltrated from above the sheet 300, aiming at one side 310 and the other side 320 of the hygroscopic member, it is possible to infiltrate only those parts. central part 330 of the surrounding water-repellent member
The undiluted acrylic hydrogel is repelled from the peripheral edge 340 and oozes out from the lower surfaces of the one side 310 and the other side 320 as well. By dipping (immersing) silicone in the mixture of self-crosslinking acrylic and titanium oxide as described above, the water-repellent member is
In other words, the sliding between the central portion 330 and the peripheral portion 340 is extremely improved.

Therefore, the stock solution of the acrylic hydrogel is easily repelled from the center portion 330 and the peripheral portion 340 and immediately concentrates only on the one side portion 310 and the other side portion 320.

Therefore, the rapid mass production of the biological stimulation electrode pad according to the present invention is more effective. Therefore, when this stock solution is solidified through ultraviolet treatment or the like, a living body-side hydrogel layer and an electrode-side hydrogel layer sandwiching the insulating base sheet 300 are formed. That is, as shown in the figure, a water-repellent member having a large number of holes corresponding to one side portion 310 and the other side portion 320 is pasted on the surface of a hygroscopic member, and after going through the above steps, Any number of biostimulation electrode pads according to the present invention can be manufactured by making a mold as shown in FIG.

[Effect of idea]

As described above, in the present invention, the conductive and adhesive first living body-side hydrogel layer 110 and the first electrode-side hydrogel layer are bonded to each other by sandwiching one side 310 of the insulating base sheet 300. A first pad 100 consisting of a layer 120 and an insulating base sheet 300
The second pad 200, which is composed of a conductive and adhesive second living body-side hydrogel layer 210 and a second electrode-side hydrogel layer 220, which are bonded to each other with the other side portion 320 sandwiched therebetween, is used for small-sized low-frequency treatment. The first pad 100 and the second pad 200 are provided corresponding to the first electrode plate 500 and the second electrode plate 600 which are integrally attached to the device body 700 and are adjacent to each other.
The center portion 330 of the insulating base sheet 300 is continuously exposed throughout the space, and the center portion 3
30, the first pad 100 and the second pad 200
The insulating base material 300 protrudes outwardly.
An adhesive layer 400 is provided on at least a portion of one side of the peripheral edge 340 of the small-sized low-frequency treatment device main body 7.
Technical measures were taken to make it possible to adhere to 00.

For this reason, the first and second pads provided corresponding to the first and second electrode plates of the compact low-frequency treatment device main body are interconnected in an insulated state, so that both pads cannot be directly touched with the hand. , it became possible to attach and detach both electrode plates at the same time. In addition, since the adhesive layer 400 is provided on the pad, the small low frequency treatment device main body 70
The pad can be firmly adhered to the center part 730 and peripheral part 720 of the pad, and the pad can be prevented from falling off.

Therefore, regarding the small-sized low-frequency treatment device, the technical effect of easily and quickly attaching and detaching the biostimulation electrode pad and preventing the pad from falling off has been achieved.

[Brief explanation of the drawing]

Figure 1 is a diagram showing the principle of the present invention, Figure 2 is a diagram showing the first embodiment of the invention, Figure 3 is a diagram showing the second embodiment of the invention, and Figure 4 is an explanatory diagram of the operation of the invention. , FIG. 5 is a diagram showing a manufacturing method of an embodiment of the present invention, FIG. 6 is a general explanatory diagram of a bioelectrode, and FIG. 7 is an explanatory diagram of a prior art. 100...first pad, 110...first living body side hydrogel layer, 120...first electrode side hydrogel layer,
200...Second pad, 210...Second living body side hydrogel layer, 220...Second electrode side hydrogel layer, 3
00... Insulating base sheet, 310... One side part,
320...Other side part, 330...Central part, 340...
...Peripheral portion, 400...Adhesive layer, 500...First electrode plate, 600...Second electrode plate, 700...Small low frequency treatment device main body.

Claims (1)

[Claims for Utility Model Registration] (1) Conductive and adhesive first living body side hydrogel layer 110 and first electrode side that are connected to each other by sandwiching one side 310 of the insulating base sheet 300 A first pad 100 consisting of a hydrogel layer 120, a second electrically conductive and adhesive body-side hydrogel layer 210, and a second electrode, which are bonded to each other by sandwiching the other side 320 of an insulating base sheet 300. A second pad 200 consisting of a side hydrogel layer 220 is integrally attached to the small low frequency treatment device main body 700 and is connected to the adjacent first electrode plate 500 and the second pad 200.
The first pad 100 and the second pad 200 are respectively provided corresponding to the electrode plate 600.
The center portion 330 of the insulating base sheet 300 is continuously exposed throughout the space, and one side portion 310 and the other side portion 320 of the insulating base sheet 300 are formed of a hygroscopic material. At the same time,
The central part 330 and the first pad 100 and the second pad
A peripheral edge 340 protruding outward of the pad 200 is formed by providing a water-repellent member on the surface of the hygroscopic member and an adhesive layer 400 on the back surface, and the small-sized low-frequency treatment device A biological stimulation electrode pad characterized in that it can be adhered to a main body 700. (2) The living body according to claim 1, wherein the water-repellent member is formed by coating a mixture of self-crosslinking acrylic and titanium oxide and dipping silicone. Pad for stimulation electrode. (3) The adhesive layer 400 is an insulating base sheet 300
The biological stimulation electrode pad according to claim 1, which is provided over the entire central portion 330 and peripheral portion 340 of the body. (4) The adhesive layer 400 is an insulating base sheet 300
The biological stimulation electrode pad according to claim 1, which is provided in the entire central portion 330 and a part of the peripheral portion 340 of the body. (5) The adhesive layer 400 is an insulating base sheet 300
A biological stimulation electrode pad according to claim 1, which is provided in a part of a central portion 330 and a peripheral portion 340 of the body.