JPS622059Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field to which the invention pertains] The present invention relates to various biological electrodes including electrodes for pain relief and return electrodes for electric scalpels.

[Prior art and its problems]

Patients who undergo open surgery do not feel pain from the surgical wound while they are under anesthesia before surgery, but they feel severe pain when the anesthesia wears off. Traditionally, analgesics have been administered to alleviate this pain, but this method is not desirable from the perspective of restoring physical strength.
Therefore, recently, immediately after surgery, two long electrodes are pasted on both sides of the surgical wound, and electric current pulses of 1 to several hundred Hz and 1 to 10-odd mA are applied to paralyze the nerves and relieve pain. Analgesic methods are being tried. The size of the surgical wound ranges from a few centimeters like an appendix incision, to
Since a wide range of procedures, such as thoracotomy and hip arthroplasty, are performed over 20 centimeters in length, the electrodes required for these procedures also require a large number of sizes. Therefore, the appropriate size (or length) for any surgical wound.
It is difficult to keep a wide variety of electrodes in stock at all times due to the amount of inventory and expiry date.

Furthermore, electrocautery surgery performed using high-frequency energy of several MHz is currently extremely widely used.
The size (area) of the return electrode used should be determined by the high-frequency power used by the electric scalpel, but for example, when used on children, it may be necessary to , it is difficult to obtain an effective electrode area above a certain level with a normal return electrode,
As a result, there is a high possibility that a large current will flow in a small area, causing burns to the return electrode.

[Purpose of invention]

The object of the present invention is to provide an electrode material that can always provide electrodes of the required size and that can be stored in only a few varieties, as seen in the example of the electrode for pain relief mentioned above. As seen in the example of a return electrode plate for an electric scalpel, the object of the present invention is to provide an electrode material that can provide the required effective electrode area regardless of body type.

[Structure of the idea]

According to the present invention, the above-mentioned object includes a skin-contacting part, a conductive support part glued on the side opposite to the skin-contacting side of the skin-contact part, and a skin-contacting part electrically conductively connected to the conductive support part. This is achieved by providing a connecting portion that protrudes from the connecting portion so that the connecting portion can be used as an electrical connection terminal.

Forming the coupling part as an extension of the conductive support part is advantageous because the coupling part and the conductive support part can be made integrally of the same material, which is structurally simple and electrically stable.

When using the biological electrode material according to the present invention as an electrode, cut it into the required size and shape, and use an alligator clip type electrode cord to connect the connecting part to the main body, such as a pain relief device, an electric scalpel, etc. All you have to do is connect it to a low frequency treatment device.

[Example of idea]

Next, an embodiment of the present invention will be described with reference to the drawings.

1 and 2 are a sectional view and a perspective view, respectively, of an electrode material according to the present invention. In the figure, a biological electrode material 1 is composed of a skin-contacting part 2, a conductive support part 3, and a coupling part 4. The skin-contacting part 2 has a conductive support part 3 on the surface opposite to the skin-contacting part 5, and the conductive support part 3 has a coupling part 4 that is electrically conductively connected thereto and protrudes outward from the skin-contact part 2. We are prepared.

The following materials can be used for the skin contact part.

(1) Karaya gum 40%, glycerin 55%, NaCl 5%
(2) Mixed and heated mixture of 30% carbon fiber (fiber length 5 mm) and 70% silicone adhesive (3) 34% acrylamide, 62% glycerin, N,
N'-methylenebisacrylamide 1%, NaCl3
(4) 40% flaky metal aluminum, 60% butyl rubber
Materials for the conductive support part include the following:

(1) 2mm thick polyethylene foam laminated with aluminum foil, (2) 40% acetylene black (particle size 42μm) and 60% dry rubber kneaded (3) 1mm thick urethane film with aluminum vapor deposited. Bonding The same material as the conductive support part can be used for the part.

Next, an example of an electrode for pain relief will be described. Using the skin contact member exemplified above, as shown in FIGS. 3 and 4, the sheet is made into a sheet with a uniform thickness of 0.1 to 5 mm, preferably 3 mm, to form the skin contact part 2, and then laminated with the conductive support part 3. This conductive support portion 3 is then laterally extended to form a coupling portion 4. The width b of the skin contact part 2 is
The total width c of the conductive support part 3 and the coupling part 4 is 20 to 100 mm. The length l in the vertical direction is preferably as long as possible so that the electrode material 1 can be cut to an appropriate length to obtain a desired pain relief electrode. FIG. 5 shows an example in which a pain relief electrode is applied to a surgical wound.The electrode material shown in FIGS.
Preferably, two electrodes 7 and 8 cut 20 to 30 mm long are pasted along the surgical wound 6 in parallel with a distance of 20 to 50 mm. Then, the alligator clip type electrode cords 9 and 10 are connected to appropriate locations on the connecting portion 4.

Next, an example of a return electrode will be described. As shown in FIGS. 6 and 7, a skin-contacting portion 2 having a thickness of 0.1 to 5 mm, preferably 3 mm, is formed in the same manner as in the case of the electrode for pain relief. Width b of skin contact portion 2, conductive support portion 3
In the case of a return electrode, the total width c of the joint portion 4 is set sufficiently large to accommodate various shapes, and the width b is set to 20 to 300 mm, and the width c is set to 30 to 350 mm. length l
It is advantageous to have one-size-fits-all sizes. FIG. 8 shows an example in which the method is applied to a patient who has suffered burns over a wide area of the body.
A return electrode plate 13 is made by cutting the electrode material 1 according to the shape of the non-burn area so as not to touch the burn area 12, and is used by connecting the return electrode cord 14 to the joint part 4. do.

[Effect of idea]

(1) Electrodes for pain relief (a) Electrodes with the optimal length can be obtained according to the size of the surgical wound, and only one type of stock is needed.

(b) Since it is structurally simple, manufacturing costs are low, and therefore the economic burden on users is also reduced.

(c) Electrode lead wires can be connected to any part of the joint so as not to interfere with postoperative management.

(2) Return electrode (a) Since it can be cut into any shape depending on the situation of the attachment site, a sufficient attachment area can always be obtained and there is no risk of burns to the return electrode. In other words, if you have a burn that makes it difficult to apply, hair is too thick to apply, or the skin is too uneven to apply, avoid areas that are unsuitable for applying the return electrode and cut the electrode to the required area. In cases where the spine alone does not provide sufficient area, such as in premature infants, it may be necessary to cut it into a shape that extends to the arms and legs.

(b) Since it is structurally simple, manufacturing costs are low, and therefore the economic burden on users is also reduced.

(c) The return electrode cord can be connected to any part of the joint for convenience in treatment.

The biological electrode material according to the present invention can also be used for TENS electrodes, electrocardiogram electrodes, low-frequency treatment electrodes, and other electrodes to obtain the same effects as described above.

[Brief explanation of drawings]

1 and 2 are a sectional view and a perspective view, respectively, of an embodiment of the present invention; FIGS. 3 and 4 are a side view and a perspective view, respectively, of an embodiment of the present invention when used as a pain relief electrode; Figure 5 is an explanatory diagram of the case where a pain relief electrode made from the electrode material shown in Figures 3 and 4 is applied to a surgical wound, and Figures 6 and 7 are illustrations of the case where it is used as a return electrode. FIG. 8 is a side view and a perspective view of the embodiment of the invention, respectively, and is an explanatory view when a return electrode made of the electrode material shown in FIGS. 6 and 7 is applied to a burn site. DESCRIPTION OF SYMBOLS 1... Biomedical electrode material, 2... Skin-contacting part, 3... Conductive support part, 4... Bonding part.

Claims (1)

[Claims for Utility Model Registration] 1. A skin-contacting part, a conductive support part adhered to the surface of the skin-contacting part opposite to the skin-contacting side, and a skin-contacting part electrically conductively connected to the conductive support part. 1. A biological electrode material comprising a more protruding coupling part, and the coupling part can be used as an electrical connection terminal. 2. The biological electrode material according to claim 1, wherein the coupling portion is formed as an extension of the conductive support portion.