JPS6116166B2 - - Google Patents
Info
- Publication number
- JPS6116166B2 JPS6116166B2 JP56073994A JP7399481A JPS6116166B2 JP S6116166 B2 JPS6116166 B2 JP S6116166B2 JP 56073994 A JP56073994 A JP 56073994A JP 7399481 A JP7399481 A JP 7399481A JP S6116166 B2 JPS6116166 B2 JP S6116166B2
- Authority
- JP
- Japan
- Prior art keywords
- dielectric layer
- return electrode
- electrode plate
- resin
- thermoplastic resin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Surgical Instruments (AREA)
Description
【発明の詳細な説明】
本発明は主として熱可塑性樹脂材料等を使用し
て形成される柔軟かつ可撓性に富む電気メス用対
極板に関し、さらに詳しくは、中間に導体層を介
在せしめその両面に誘導層及び絶縁層を設けてな
る電気メス用対極板の改良に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a soft and highly flexible return electrode plate for an electric scalpel that is mainly formed using a thermoplastic resin material, and more specifically, to This invention relates to an improvement in a return electrode plate for an electric scalpel, which is provided with a dielectric layer and an insulating layer.
従来電気メス用対極板には、アルミ板、ステン
レス板等の導体をそのまま又は塗膜加工されたも
のが使用されている。 Conventionally, as a return electrode plate for an electric scalpel, a conductor such as an aluminum plate or a stainless steel plate is used as it is or coated with a coating.
従つて、人体に対する電気メス手術に当つて
は、対極板を構成する堅剛な比較的小型の金属板
に人体を直接接触させるが、この場合載置の姿勢
等により人体の一部しか接触しないことが屡々起
り、この一部に電流が集中し、人体に火傷を負わ
しめる危険性があつた。 Therefore, when performing electrocautery surgery on the human body, the human body is brought into direct contact with a rigid and relatively small metal plate that constitutes the return electrode, but in this case, only a portion of the human body comes into contact due to the mounting posture, etc. This often happened, and the current was concentrated in this area, posing the risk of causing burns to the human body.
この欠点を除去すべく、導電性繊維をもつて導
電性基体を形成し、該基体の表面にカーボンフア
イバーと樹脂とを混合してなる導電性接着剤層を
設けてなる対極板が提案（特開昭53−123591号公
報）されているが、その電気的特性及び安全性が
不十分であり、また、該対極板が使用される場合
直接人体に触接せしめられることにる不快感があ
つて、さらに優れた電気メス用対極板の出現が要
望されていた。 In order to eliminate this drawback, a counter electrode plate was proposed in which a conductive substrate is formed with conductive fibers and a conductive adhesive layer made of a mixture of carbon fiber and resin is provided on the surface of the substrate (especially However, its electrical characteristics and safety are insufficient, and when the return electrode plate is used, it causes discomfort due to direct contact with the human body. Therefore, there has been a demand for an even better return electrode plate for electric scalpels.
これに答えて出現したのが、誘電層、導体層及
び絶縁層からなる電気メス用対極板であるが、こ
の種のものは、電気特性及び安全性において従来
品に較べて遥かに優れてお、かつ、経済性を具有
することから広く使用されるようになつた。 In response to this, a return electrode plate for electric scalpels was developed consisting of a dielectric layer, a conductive layer, and an insulating layer, but this type of electrode plate has far superior electrical properties and safety compared to conventional products. It has become widely used due to its economic efficiency.
本発明は、この種の電気メス用対極板に更に改
良を加えて、その性能を格段に向上せしめたもの
である。 The present invention further improves this type of return electrode plate for an electric scalpel to significantly improve its performance.
本発明は、誘電層、導体層及び絶縁層からなる
積層物の該誘電層の上面にさらに保護膜を有する
対極板を提供するものであり、また誘電層の熱可
塑性樹脂に誘電性物質を含有せしめて該誘電層の
電気的特性を高めることによりメス効果を顕著な
らしめるもので、このため微粉状でかつ高誘電性
のチタン酸バリウム、チタン酸鉛又はジルコン酸
鉛のいずれか一種又は二種以上が使用される。こ
れらの誘電性物質は通常上記熱可塑性樹脂100重
量部に対し60〜400重量部が使用される。これ
は、かかる配合比の場合に、電気メス用対極板と
して最も好ましい体積抵抗率106〜1016Ωcm、誘
電率10〜30（於750kHz）の特性が得られるから
である。 The present invention provides a return electrode plate that further has a protective film on the upper surface of the dielectric layer of a laminate consisting of a dielectric layer, a conductor layer, and an insulating layer, and further includes a thermoplastic resin containing a dielectric substance. At the very least, the scalpel effect is made noticeable by enhancing the electrical properties of the dielectric layer, and for this purpose, any one or two of finely powdered and highly dielectric barium titanate, lead titanate, or lead zirconate is used. The above are used. These dielectric substances are usually used in an amount of 60 to 400 parts by weight per 100 parts by weight of the thermoplastic resin. This is because, in the case of such a compounding ratio, characteristics of a volume resistivity of 10 6 to 10 16 Ωcm and a dielectric constant of 10 to 30 (at 750 kHz), which are most preferable for a return electrode plate for an electric scalpel, are obtained.
その他本発明に係る対極板を構成する各層にお
ける好ましい実施態様は下記のとおりである。ま
ず、誘電層に用いられる熱可塑性樹脂は成形加工
の際柔軟性を有するものであれば使用可能である
が、このうち、ビニル系樹脂、オレフイン系樹
脂、ゴム系樹脂、フツ素系樹脂、シリコン系樹脂
等が電気的特性、強度、耐久性、経済性等からし
て好ましく使用される。 Other preferred embodiments of each layer constituting the return electrode plate according to the present invention are as follows. First, thermoplastic resins used for the dielectric layer can be used as long as they are flexible during molding, but among these, vinyl resins, olefin resins, rubber resins, fluorocarbon resins, and silicone resins can be used. Based on electrical properties, strength, durability, economical efficiency, etc., resins and the like are preferably used.
また、導体層における導電性基材には網状又は
薄膜状の金属又は導電性プラスチツク或いはカー
ボン繊維編織物等が好ましい。金属には、真鍮、
ニツケル、銅、ステンレス、アルミニウム、金、
銀等が使用され、また、導電性プラスチツクとし
て、導電性カーボンを混練した熱可塑性樹脂、即
ちビニル系樹脂、オレフイン系樹脂、ゴム系樹
脂、フツ素系樹脂又はシリコン系樹脂等が使用さ
れるが、特に、ポリオレフイン系又はフツ素樹脂
が好ましい。 Further, the conductive base material in the conductor layer is preferably a net-like or thin-film metal, conductive plastic, carbon fiber knitted fabric, or the like. Metals include brass,
Nickel, copper, stainless steel, aluminum, gold,
Silver, etc. are used, and thermoplastic resins kneaded with conductive carbon, such as vinyl resins, olefin resins, rubber resins, fluorine resins, or silicone resins, are used as conductive plastics. In particular, polyolefins or fluorine resins are preferred.
さらに、絶縁層における熱可塑性樹脂は概ね誘
電層に係る熱可塑性樹脂と同様のものが使用され
るが、そのほかウレタン系樹脂も好適である。こ
れらの樹脂の低発泡体はクツシヨン性が良好で好
ましく使用される。 Furthermore, the thermoplastic resin for the insulating layer is generally the same as that for the dielectric layer, but urethane resins are also suitable. Low-foamed products of these resins have good cushioning properties and are preferably used.
次に、本発明の特徴部分である保護膜は、誘電
層の上方に熱圧着等により該層と一体的に形成せ
しめられる。保護膜は、フツ素系樹脂、オレフイ
ン系樹脂又はポリエステル系樹脂のフイルムの一
種又は二種以上により形成されるものであるが、
この膜による誘電率の損失がなく、しかも、対極
板の耐水性及び耐薬品性を格段に高める利点を有
する。 Next, the protective film, which is a feature of the present invention, is formed above the dielectric layer integrally with the layer by thermocompression bonding or the like. The protective film is formed of one or more films of fluorine resin, olefin resin, or polyester resin,
This film has the advantage that there is no loss in dielectric constant, and the water resistance and chemical resistance of the return electrode plate are greatly improved.
以下図面を参照し実施例に基づいて本発明を説
明する。 The present invention will be described below based on embodiments with reference to the drawings.
第１図は、本発明に係る対極板の一例を示す斜
視断面図である。符号１１，１２，１３，１４は
夫々誘電層、導体層、絶縁層、保護膜を示す。 FIG. 1 is a perspective sectional view showing an example of a return electrode plate according to the present invention. Reference numerals 11, 12, 13, and 14 indicate a dielectric layer, a conductor layer, an insulating layer, and a protective film, respectively.
誘電層１１は、熱可塑性樹脂と誘電性物質を混
練成型したシート状物で層の厚さは0.2〜0.6mmが
よい。導体層１２は、誘電層１１と絶縁層１３と
の間に介在せしめられて、その厚さは可撓性を確
保しうる範囲内であつて、通常0.2〜0.5mm程度の
ものがよい。絶縁層１３は、通常0.5〜１mmの厚
さを有する。 The dielectric layer 11 is a sheet-like material obtained by kneading and molding a thermoplastic resin and a dielectric substance, and the thickness of the layer is preferably 0.2 to 0.6 mm. The conductor layer 12 is interposed between the dielectric layer 11 and the insulating layer 13, and its thickness is within a range that can ensure flexibility, and is usually about 0.2 to 0.5 mm. Insulating layer 13 typically has a thickness of 0.5 to 1 mm.
さらに、保護膜１４は、誘電層１１の上面に接
着、融着等の手段で圧着せしめられるもので、厚
さ10〜30μでフツ素樹脂フイルムが耐薬品性が優
れているため好ましい。 Further, the protective film 14 is pressed onto the upper surface of the dielectric layer 11 by means of adhesion, fusion, etc., and has a thickness of 10 to 30 microns and is preferably made of a fluororesin film because of its excellent chemical resistance.
これらの各層を積層してなる本発明に係る対極
板の大きさは、特に限定されるものではなく手術
目的により任意のサイズに成型される。即ち、手
術時人体全面に適用する必要があるときは、ベツ
トのサイズに合わせて成型され、また、患部手術
用には適宜小型に成型されてよい。 The size of the return electrode according to the present invention, which is formed by laminating these layers, is not particularly limited, and may be molded to any size depending on the surgical purpose. That is, when it is necessary to apply it to the entire human body during surgery, it is molded to match the size of the bed, and it may be molded into a smaller size as appropriate for use in surgery on the affected area.
第２図は、本発明に係る対極板の使用状態を示
す説明図である。符号２１は電気メス本体である
高周波発生装置、同２２は人体、同２３は本発明
に係る対極板、同２４は能動電極（メス先）、同
２５は電源を夫々示す。 FIG. 2 is an explanatory diagram showing how the return electrode plate according to the present invention is used. Reference numeral 21 indicates a high frequency generator which is the main body of an electric scalpel, 22 indicates a human body, 23 indicates a return electrode according to the present invention, 24 indicates an active electrode (knife tip), and 25 indicates a power source.
以上の如き構成に基づく対極板は下記の如き顕
著な効果を奏する。 The return electrode plate based on the above structure has the following remarkable effects.
即ち、表面が熱可塑性樹脂等で覆われているの
で、耐水性、耐薬性等がよいが、特に保護膜を一
体的に装着した本発明品にあつては、上記の各特
性が更に一段と高められる。 In other words, since the surface is covered with thermoplastic resin, etc., it has good water resistance and chemical resistance, but especially in the case of the product of the present invention that is integrally equipped with a protective film, each of the above properties is even higher. It will be done.
また、この保護膜の装着による誘電損失がなく
メス効率が極めて良好である。さらに、本発明品
では、その誘電層にチタン酸バリウム、チタン酸
鉛又はジルコン酸鉛のいずれか一種又は二種以上
が含まれているので、誘電率が750kHzにおい
て、10〜30の如き高誘電体となり、電気メスの刃
先と導体層との間に極めて円滑に高周波電流が流
れることなり顕著に電気メス機能が達せられる。 Furthermore, there is no dielectric loss due to the attachment of this protective film, and the scalpel efficiency is extremely good. Furthermore, in the product of the present invention, since the dielectric layer contains one or more of barium titanate, lead titanate, or lead zirconate, the dielectric constant is as high as 10 to 30 at 750kHz. As a result, a high frequency current flows extremely smoothly between the cutting edge of the electric scalpel and the conductor layer, and the function of the electric scalpel is achieved significantly.
次に、本発明に係る対極板の製造実施例を説明
する。実施例中に記載の部又は％はいずれも重量
部又は最量％を示す。 Next, an example of manufacturing a return electrode plate according to the present invention will be described. All parts or percentages mentioned in the examples indicate parts by weight or maximum percentages.
実施例
ポリウレタンゴム20部とチタン酸バリウム80部
とからなる配合物をニーダ及びミキシングロール
で均一になるように混練後ペレツト状としたもの
を熱ロールで圧延し厚さ300μのシートを作製し
た。さらに、このシートに厚さ25μのポリビニル
フルオライドフイルムを重ね熱圧着し、保護膜を
有する誘導率11（於750kHz）、体積抵抗率1014Ω
cm（500V印加測定値）の誘電層用シートを作製
した。Example A compound consisting of 20 parts of polyurethane rubber and 80 parts of barium titanate was kneaded using a kneader and a mixing roll so as to be uniform, and the resulting pellet was rolled using hot rolls to produce a sheet with a thickness of 300 μm. Furthermore, a polyvinyl fluoride film with a thickness of 25μ is layered on this sheet and thermocompressed to give it a protective film with a conductivity of 11 (at 750kHz) and a volume resistivity of 10 14 Ω.
A dielectric layer sheet of cm (500V applied and measured value) was produced.
次に、ポリ塩化ビニル樹脂100部、ジオクチル
フタレート50部の混合物をカレンダーロールにか
け、厚さ1000μの絶縁層用シートを得た。このも
のの体積抵抗率は1014Ωcmであつた。 Next, a mixture of 100 parts of polyvinyl chloride resin and 50 parts of dioctyl phthalate was applied to a calender roll to obtain a sheet for an insulating layer having a thickness of 1000 μm. The volume resistivity of this material was 10 14 Ωcm.
これらの両シートの間に、導体層となる真鍮製
の40メツシユ網を挾み熱プレス機で圧着して冷却
後一体化された対極板（巾450m/m、長さ1000
m/m）が得られた。この導体層に電極を取付
け、取出したコード線を電気メス本体に接続し
て、電気メスを使用し良好な結果が得られた。 Between these two sheets, a 40-mesh mesh net made of brass, which will serve as a conductor layer, is sandwiched and pressed using a heat press machine, and after cooling, an integrated return electrode plate (width 450 m/m, length 1000 m/m) is formed.
m/m) was obtained. An electrode was attached to this conductor layer, and the cord wire taken out was connected to the electric scalpel body, and an electric scalpel was used with good results.
第１図は本発明に係る対極板の一例を示す斜視
断面図、第２図は本発明に係る対極板の使用状態
を示す説明図である。
１１……誘電層、１２……導体層、１３……絶
縁層、１４……保護膜。
FIG. 1 is a perspective sectional view showing an example of the return electrode plate according to the present invention, and FIG. 2 is an explanatory view showing the state in which the return electrode plate according to the invention is used. 11... Dielectric layer, 12... Conductor layer, 13... Insulating layer, 14... Protective film.
Claims (1)
る誘電層、可撓性の導電性基材からなる導体層及
び熱可塑性樹脂、天然ゴム又は合成ゴムからなる
絶縁層の順に積層して構成される面状の電気メス
用対極板において、前記誘電層の上面にフツ素系
樹脂、オレフイン系樹脂又はポリエステル系樹脂
のフイルムの一種又は二種以上を圧着して該誘導
電層と一体的な保護膜を形成せしめるとともに、
該誘電層の熱可塑性樹脂に誘導性物質としてチタ
ン酸バリウム、チタン酸鉛又はジルコン酸鉛のい
ずれか一種又は二種以上を含有せしめることを特
徴とする電気メス用対極板。1. Consisting of a dielectric layer made of a thermoplastic resin, a conductor layer made of a flexible conductive base material, and an insulating layer made of a thermoplastic resin, natural rubber, or synthetic rubber, stacked in this order from the top to the bottom. In a planar return electrode for an electric scalpel, one or more films of fluorocarbon resin, olefin resin, or polyester resin are crimped onto the upper surface of the dielectric layer to form a protective film integral with the dielectric layer. In addition to forming
A return electrode plate for an electric scalpel, characterized in that the thermoplastic resin of the dielectric layer contains one or more of barium titanate, lead titanate, or lead zirconate as an inductive substance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56073994A JPS57188250A (en) | 1981-05-15 | 1981-05-15 | Reference electrode plate of electric knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56073994A JPS57188250A (en) | 1981-05-15 | 1981-05-15 | Reference electrode plate of electric knife |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57188250A JPS57188250A (en) | 1982-11-19 |
| JPS6116166B2 true JPS6116166B2 (en) | 1986-04-28 |
Family
ID=13534177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56073994A Granted JPS57188250A (en) | 1981-05-15 | 1981-05-15 | Reference electrode plate of electric knife |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57188250A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1300230C (en) * | 2003-03-06 | 2007-02-14 | 株式会社藤仓 | Rubber composition with high dielectric constant and electric cable member |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6243538Y2 (en) * | 1984-12-18 | 1987-11-12 | ||
| US7166102B2 (en) | 1996-10-30 | 2007-01-23 | Megadyne Medical Products, Inc. | Self-limiting electrosurgical return electrode |
| US6544258B2 (en) * | 1996-10-30 | 2003-04-08 | Mega-Dyne Medical Products, Inc. | Pressure sore pad having self-limiting electrosurgical return electrode properties and optional heating/cooling capabilities |
| US7169145B2 (en) | 2003-11-21 | 2007-01-30 | Megadyne Medical Products, Inc. | Tuned return electrode with matching inductor |
| US8876812B2 (en) | 2009-02-26 | 2014-11-04 | Megadyne Medical Products, Inc. | Self-limiting electrosurgical return electrode with pressure sore reduction and heating capabilities |
| US10085791B2 (en) | 2013-12-26 | 2018-10-02 | Megadyne Medical Products, Inc. | Universal self-limiting electrosurgical return electrode |
| US9867650B2 (en) * | 2013-12-26 | 2018-01-16 | Megadyne Medical Products, Inc. | Universal self-limiting electrosurgical return electrode |
| US20200205888A1 (en) * | 2018-12-28 | 2020-07-02 | Biosense Webster (Israel) Ltd. | Catheter Electrode with Improved Lateral Heat Transfer in Adhesive Layer |
-
1981
- 1981-05-15 JP JP56073994A patent/JPS57188250A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1300230C (en) * | 2003-03-06 | 2007-02-14 | 株式会社藤仓 | Rubber composition with high dielectric constant and electric cable member |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57188250A (en) | 1982-11-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4633879A (en) | Electrode with disposable interface member | |
| US20060278631A1 (en) | Laminate fabric heater and method of making | |
| US4267840A (en) | Electrosurgical grounding pad | |
| US4534886A (en) | Non-woven heating element | |
| US4247756A (en) | Heated floor mat | |
| US4934383A (en) | Electrode | |
| US10588539B1 (en) | Method for a dry elastomer electrode | |
| SE450808B (en) | CAPACITIVE COUPLET, INDIFFERENT ELECTROD | |
| KR101753271B1 (en) | Flexible heating element and manufacturing method thereof | |
| US4363071A (en) | Static dissipative mat | |
| JPS6116166B2 (en) | ||
| WO1999039635A1 (en) | Medical electrode and method of manufacture | |
| CA2675533A1 (en) | Sheet heating element | |
| JP2004055219A (en) | Seat heater | |
| JP2008300050A (en) | Polymer heating element | |
| US4727880A (en) | Flat, conformable, biomedical electrode | |
| JP2003332030A (en) | Car seat heater | |
| US7169644B2 (en) | Method of making multifunction electrode | |
| JP2006054131A (en) | Electric resistive element | |
| JP7090354B2 (en) | Suction pad | |
| JP2626041B2 (en) | Organic positive temperature coefficient thermistor | |
| CN214797209U (en) | Electronic switch and flexible electronic equipment | |
| US20060113296A1 (en) | Flexible electric heating pad | |
| CN211831206U (en) | Flexible electric heating film, heating pad and heating blanket | |
| KR102027092B1 (en) | A carbon fiber heating element capable of suppressing a stagnation phenomenon and a manufacturing method thereof |