JPH01175837A - Bioamorphous electrode - Google Patents
Bioamorphous electrodeInfo
- Publication number
- JPH01175837A JPH01175837A JP62336069A JP33606987A JPH01175837A JP H01175837 A JPH01175837 A JP H01175837A JP 62336069 A JP62336069 A JP 62336069A JP 33606987 A JP33606987 A JP 33606987A JP H01175837 A JPH01175837 A JP H01175837A
- Authority
- JP
- Japan
- Prior art keywords
- amorphous
- electrode
- corrosion
- less
- atomic
- 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.)
- Pending
Links
- 230000007797 corrosion Effects 0.000 claims abstract description 58
- 238000005260 corrosion Methods 0.000 claims abstract description 58
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 34
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 27
- 239000000956 alloy Substances 0.000 claims abstract description 27
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 16
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 14
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 14
- 229910052710 silicon Inorganic materials 0.000 claims description 9
- 229910052799 carbon Inorganic materials 0.000 claims description 7
- 229910052796 boron Inorganic materials 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 229910052750 molybdenum Inorganic materials 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims 2
- 241000270728 Alligator Species 0.000 abstract description 4
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 abstract description 4
- 239000000853 adhesive Substances 0.000 abstract description 3
- 230000001070 adhesive effect Effects 0.000 abstract description 3
- 239000011800 void material Substances 0.000 abstract 1
- 239000011651 chromium Substances 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 229910000808 amorphous metal alloy Inorganic materials 0.000 description 4
- 241000894007 species Species 0.000 description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000002161 passivation Methods 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 230000000747 cardiac effect Effects 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 229910001316 Ag alloy Inorganic materials 0.000 description 1
- 229910000669 Chrome steel Inorganic materials 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 229910021607 Silver chloride Inorganic materials 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- 210000002216 heart Anatomy 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001256 stainless steel alloy Inorganic materials 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- 229910052714 tellurium Inorganic materials 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Landscapes
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は生体用アモルファス電極に関するものであって
、特に耐蝕性に優れ且つ低いコストで製作できる生体用
アモルファス電極に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an amorphous electrode for living organisms, and particularly to an amorphous electrode for living organisms that has excellent corrosion resistance and can be manufactured at low cost.
周知のように生体に発生する生体電極は、心臓、脳、筋
肉などの活動によって誘起されている。As is well known, bioelectrodes generated in living organisms are induced by the activities of the heart, brain, muscles, etc.
特に心臓の生体電極は、人体の皮膚面に誘起した微弱電
流を外部の心電計に導出して心臓の異常を診断している
。そしてこの心電計は、入力部を生体と電気的に結合さ
せるために皮膚の表面と接触する電極が必要不可欠なも
のである。In particular, cardiac bioelectrodes diagnose cardiac abnormalities by directing weak currents induced on the skin of the human body to an external electrocardiograph. This electrocardiograph requires an electrode that comes into contact with the surface of the skin in order to electrically connect the input section to the living body.
この電極は生体電位を高い精度のもとに正確に測定し、
波形の弁別比を高めることで重要な部分である。This electrode accurately measures biopotential with high precision,
This is an important part because it increases the discrimination ratio of the waveform.
この重要な電極は、
■電気的抵抗値の低いもの
■耐蝕性に優れているもの
■化学的に変化が起き難いもの
以上三つの電気的特性を有するものでなければならない
。This important electrode must have three electrical properties: (1) low electrical resistance; (2) excellent corrosion resistance; and (2) resistance to chemical change.
即ち電極は生体内の微弱電流を体外に導出させるために
電気抵抗値の低い導電性の良好なものが用いられる。That is, electrodes with low electrical resistance and good conductivity are used in order to lead the weak current inside the living body to the outside of the body.
また電極は医療用に用いられるもので各種の薬剤と接触
することが多（その際薬剤等により腐食し易くなるので
耐蝕性に優れているものが必要とされる。Furthermore, since electrodes are used for medical purposes, they often come into contact with various drugs (in this case, they are easily corroded by the drugs, etc.), so electrodes with excellent corrosion resistance are required.
さらに電極が皮膚面と接触したときに生体面と電極との
間に化学変化が起きる。この化学変化が起きると起電力
が発生する。この起電力はいわゆる分極電圧といわれる
もので、この分極電圧は心電計において入力信号（心電
図信号）に重畳され、心電計の入力増巾器に支障を与え
、この電圧が高ければ高い程好ましくなく正確な心電図
が得られなくなり、従って電極は化学的に安定したもの
が必要とされる。Furthermore, when the electrode comes into contact with the skin surface, a chemical change occurs between the biological surface and the electrode. When this chemical change occurs, an electromotive force is generated. This electromotive force is called a polarization voltage, and this polarization voltage is superimposed on the input signal (electrocardiogram signal) in the electrocardiograph and interferes with the input amplification device of the electrocardiograph. Undesirably, accurate electrocardiograms cannot be obtained; therefore, the electrodes must be chemically stable.
以上のような電気的特性を有するものが銀、塩化銀（八
ｇ、Ａｇ、ｃ１ｚ ）の合金で、生体電極の主流をなし
、従来流く使用されている。An alloy of silver and silver chloride (8g, Ag, c1z) having the above-mentioned electrical properties forms the mainstream of bioelectrodes and has been commonly used in the past.
ところでこのように銀を素材とした合金は、導電性に冨
み、且つ耐蝕性に優れ、その上化学的に安定していると
いう理由により、生体電極としては最も適合しているも
のである。しかしながら銀そのものは貴金属で高価なも
のであり、且つ生産量も少なく簡単に入手することは難
しいという問題点があり、廉価で耐蝕性に優れ、且つ簡
単に入手できる生体用電極の開発が待たれていた。By the way, alloys made of silver are most suitable for bioelectrodes because they are highly conductive, have excellent corrosion resistance, and are chemically stable. However, silver itself is a precious metal and is expensive, and there are problems in that it is difficult to obtain easily due to the small amount of production.The development of inexpensive, corrosion-resistant, and easily available biomedical electrodes is awaited. was.
そこでこの発明は、このような従来の問題点に着目して
なされたものであって。Therefore, this invention was made by focusing on such conventional problems.
５−４０％のＣｒおよび１５〜３５原子％のＰを含み、
残部は実質的にＮｉからなり苛酷な腐食環境に耐える耐
孔食、耐隙間食、耐全面腐食層高耐蝕アモルファス基合
金で形成された生体用アモルファス電極。Containing 5-40% Cr and 15-35 at.% P,
The remainder is substantially Ni, and the amorphous electrode for biological use is made of a highly corrosion-resistant amorphous base alloy with pitting corrosion, crevice corrosion, and general corrosion resistant layers that can withstand severe corrosive environments.
という手段を提供して、耐蝕性に優れかつ廉価に製作で
きる生体用アモルファス電極を得ることにより、上記の
問題点を解決することを目的とするものである。It is an object of the present invention to solve the above problems by providing a means for obtaining an amorphous electrode for biological use that has excellent corrosion resistance and can be manufactured at low cost.
以下この発明の詳細な説明する。This invention will be explained in detail below.
従来耐蝕性合金としては、ステンレス合金、例えば１３
％クロム鋼、１８−８ステンレスａｉ！（３０４ｆＩ４
）、１７ １４ ２５Ｍｏステンレン鋼とか、ニッケル
基合金などが汎く使用されている。これらの合金は成る
程度の耐蝕性を有しているが、高腐食性の環境が例えば
ＩＮ塩酸水溶液では不動態膜が壊れて孔食を受ける。Conventional corrosion-resistant alloys include stainless steel alloys, such as 13
% chrome steel, 18-8 stainless ai! (304fI4
), 17 14 25Mo stainless steel, and nickel-based alloys are widely used. Although these alloys have a certain degree of corrosion resistance, in a highly corrosive environment such as an IN hydrochloric acid aqueous solution, the passive film is destroyed and pitting occurs.
そこで出願人はアモルファス合金について研究し、耐蝕
性に優れたクロムを含む鉄基アモルファス合金、及び前
記合金に副成分としてモリブデンが添加された鉄基アモ
ルファス合金を発明した。Therefore, the applicant conducted research on amorphous alloys and invented an iron-based amorphous alloy containing chromium, which has excellent corrosion resistance, and an iron-based amorphous alloy in which molybdenum is added as a subcomponent to the alloy.
本出願人はさらに前記アモルファス鉄合金で形成された
生体用電極以外のアモルファスニッケル基合金により形
成された生体用電極について研究したところ、アモルフ
ァスニッケル基合金は、アモルファス基合金により更に
製造が容易であり、かつ、４６％フッ酸溶液というよう
な苛酷な腐食環境においても、全く腐食されないなどき
わめて高い耐蝕性を有することを認識した。The present applicant further researched biomedical electrodes formed from amorphous nickel-based alloys other than the biomedical electrodes formed from the amorphous iron alloy, and found that amorphous nickel-based alloys are easier to manufacture than amorphous nickel-based alloys. Moreover, it was recognized that it has extremely high corrosion resistance, with no corrosion at all even in a severe corrosive environment such as a 46% hydrofluoric acid solution.
本発明は、耐孔食、耐隙間腐食、耐全面腐食性に優れる
高耐蝕アモルファスニッケル基合金により形成された生
体用電極を提供することを目的とし、下記に述べるそれ
ぞれの成分組成を有するアモルファスニッケル基合金に
より形成することによってその目的を達成することがで
きる。即ち５〜４０原子％のＣｒおよび１５〜３５原子
％のＰを含み、残部は実質的にＮｉよりなるアモルファ
スニッケル基合金で形成した生体用誘導電極である。The present invention aims to provide a biomedical electrode formed of a highly corrosion-resistant amorphous nickel-based alloy that has excellent resistance to pitting corrosion, crevice corrosion, and general corrosion. This purpose can be achieved by forming it from a base alloy. That is, it is a biological induction electrode formed of an amorphous nickel-based alloy containing 5 to 40 at.% of Cr and 15 to 35 at.% of P, with the remainder being substantially Ni.
本発明で使用するアモルファスニッケル合金は、アモル
ファス合金の特徴である高い強さと靭さを更に向上させ
かつ高耐蝕性を合金に付与すにクロムと、クロムを主体
とする高耐蝕性不動態保護被膜ガ酸化力の乏しい苛酷な
腐食性環境においても自然に生成する自己不動態化にき
わめて有効なＰとを大量にすることが添加でき、しかも
、腐食の起点となる欠陥を含まず、苛酷な腐食性環境に
おける腐食速度の小さな製造の容易な合金である。The amorphous nickel alloy used in the present invention further improves the high strength and toughness characteristic of amorphous alloys, and also contains chromium and a highly corrosion-resistant passive protective coating mainly composed of chromium. It is possible to add a large amount of P, which is extremely effective for self-passivation and is naturally generated even in harsh corrosive environments with poor oxidizing power. Moreover, it does not contain defects that can be the starting point of corrosion, and is highly corrosive. It is an easy-to-manufacture alloy with a low corrosion rate in harsh environments.
これが本発明の合金が苛酷な腐食性環境においても孔食
、隙間腐食、全面をうけず、異常に高い耐蝕性を有する
理由である。This is why the alloy of the present invention does not suffer from pitting, crevice corrosion, or surface corrosion even in severe corrosive environments, and has an unusually high corrosion resistance.
次に本発明における各成分組成を限定する理由を述べる
。Next, the reason for limiting the composition of each component in the present invention will be described.
Ｃｒについては、これを５原子％未溝にすると、耐孔食
性、耐隙間腐食性、耐全面腐食性が劣化し、４０原子％
を越えるとアモルファス構造をうろことが困難になるの
で、５〜４０原子％の範囲内にすることが必要であり、
なかでも７〜２０原子％のとき良い結果が得られる。Regarding Cr, if 5 at% % of Cr is left ungrooved, pitting corrosion resistance, crevice corrosion resistance, and general corrosion resistance deteriorate, and 40 at%
If it exceeds 5 to 40 at%, it becomes difficult to penetrate the amorphous structure, so it is necessary to keep it within the range of 5 to 40 at%.
Among these, good results are obtained when the content is 7 to 20 atomic %.
Ｐはアモルファス構造を得るのに必要かつ有効な元素で
あり、同時に合金の自己不動態化を促進する元素である
。本発明の第１，２の発明においてＰが１５原子％より
少ないとき、また３５原子％を越えるときはアモルファ
ス構造を得ることが困難になるので、Ｐは１５〜３５原
子％範囲内にする必要があり、なかでも２０〜２５原子
％のとき最も良い結果が得られる。またＰが５原子％未
溝のときは自己不働態化を促進せず耐蝕性が低下し、３
５原子％より多いとアモルファス構造を得ることが困難
になるので、Ｐは５〜３５原子％の範囲内にする必要が
ある。P is a necessary and effective element for obtaining an amorphous structure, and at the same time is an element that promotes self-passivation of the alloy. In the first and second aspects of the present invention, it is difficult to obtain an amorphous structure when P is less than 15 at% or exceeds 35 at%, so P must be within the range of 15 to 35 at%. Among them, the best results are obtained when the content is 20 to 25 atom %. In addition, when 5 at% of P is ungrooved, self-passivation is not promoted and corrosion resistance is reduced.
Since it becomes difficult to obtain an amorphous structure if it exceeds 5 at.%, P needs to be in the range of 5 to 35 at.%.
またＣ、 Ｂ、 Ｓｔアモルファス構造を得るのに有効
な元素であるがＣ，Ｂ、 Ｓｉのいずれか１種または２
種以上の合計が２０原子％を越えるとアモルファス構造
を得るのが困難になる。なおＣ，Ｓｔ、 Ｂのうちから
選ばれる１種または２種以上とＰの合計が１５原子％未
満あるいは３５原子％を越えるとアモルファス構造を得
ることが困難になる。。In addition, C, B, and St are effective elements for obtaining an amorphous structure, but any one or two of C, B, and Si are effective elements.
If the total amount of more than 20 species exceeds 20 atomic %, it becomes difficult to obtain an amorphous structure. Note that if the total of one or more selected from C, St, and B and P is less than 15 atomic % or exceeds 35 atomic %, it will be difficult to obtain an amorphous structure. .
したがってＣ，Ｓｉ、 Ｈのうちから選ばれる何れか１
種または２種以上とＰとの合計は１５〜３５原子％の範
囲内にする必要があり、なかでも２０〜２５原子％のと
き最も良い結果が得られる。Therefore, any one selected from C, Si, H
The total amount of the species or two or more species and P must be within the range of 15 to 35 atom %, with the best results being obtained when it is 20 to 25 atom %.
なおアモルファス構造を得るに有効な前記Ｃ１Ｓｉ、
Ｂ元素の一部または全部をアモルファス構造を得るに
有効な他の元素例えば２０原子％以下のＧｅ５原子％以
下のＳｎ、 Ａｓ、 Ｓｅ、 Ｔｅ、 Ｎなどのうらか
ら選ばれる何れか１種または２種以上をもつ代用するこ
とができる。Note that the C1Si effective for obtaining an amorphous structure,
Part or all of element B may be replaced with other elements effective to obtain an amorphous structure, such as Ge of 20 atomic % or less, Ge of 5 atomic % or less, Sn, As, Se, Te, N, etc. Any one or two elements selected from the group consisting of: Can be substituted with more than one species.
さらにＡｌはアモルファス構造を得やすくする元素であ
るが、３原子％を越えると、逆にアモルファス構造を得
ることが困難になる。したがって有効範囲は３原子％以
下であり０．５原子％が最適である。Ｍｏは耐孔食性、
耐隙間食性、耐全面腐食性を更に向上させる元素である
が１０原子％を越えると、アモルファス構造を得るのが
困難になる。したがって１０原子％以下の範囲とし、最
適には、２〜３原子％付近である。Further, Al is an element that makes it easier to obtain an amorphous structure, but if it exceeds 3 atomic %, it becomes difficult to obtain an amorphous structure. Therefore, the effective range is 3 atomic % or less, and 0.5 atomic % is optimal. Mo has pitting corrosion resistance,
It is an element that further improves crevice corrosion resistance and general corrosion resistance, but if it exceeds 10 atomic %, it becomes difficult to obtain an amorphous structure. Therefore, it should be in the range of 10 atomic % or less, and optimally around 2 to 3 atomic %.
Ｆｅは４０原子％以上含まれると、本発明の目的とする
異常に高い耐蝕性がやや損なわれるので、Ｆｅは４０原
子％未満にする必要がある。If Fe is contained in an amount of 40 atom % or more, the unusually high corrosion resistance that is the object of the present invention will be slightly impaired, so the Fe content must be less than 40 atom %.
また必須成分であるＣｒ、 Ｐと選択成分であるＡｌ
。In addition, Cr and P are essential components and Al is an optional component.
.
Ｍｏ、 Ｆｅとの合計が６０原子％未溝にする必要があ
る。It is necessary that the total amount of Mo and Fe be 60 atomic percent ungrooved.
また必須成分であるＣｒ、 Ｐと選択成分であるＣ２
５ｉ、 Ｂ、 ＡＩ、 Ｍｏ、 Ｆｅとの合計が６０原
子％以上を含むと、本発明の目的とするので、前記合計
は６ｏ原子％未溝にする必要がある。In addition, Cr and P are essential components and C2 is an optional component.
If the total of 5i, B, AI, Mo, and Fe is 60 atomic % or more, this is the object of the present invention, so the total must be 60 atomic % ungrooved.
なおＣｏ４０原子％未満、Ｐｔ＋ Ｍｎそれぞれ１０原
子％以下、Ｖ、 Ｎｂ、 Ｔａ、 Ｗ、 Ｚｒ、 Ｔｉ
、 Ｃｕそれぞれ５原子％以下のうちから選ばれる１種
または２種以上も本発明の合金に添加してもアモルファ
ス構造を得、かつ耐蝕性に対しても悪影響を与えないの
で、前記範囲内で添加することができる。Co less than 40 atomic %, Pt + Mn each 10 atomic % or less, V, Nb, Ta, W, Zr, Ti
, Cu, each selected from 5 atomic % or less, can be added to the alloy of the present invention to obtain an amorphous structure, and will not have an adverse effect on corrosion resistance. Can be added.
以上のように製造されたニッケル基アモルファス合金で
電極を形成し、その電気の使用態様を図面に従って説明
する。第１図は生体用アモルファス電極の平面で、前記
のように細い条、薄板として製造されたアモルファス合
金を適宜長さに切断してアモルファス電極１を形成する
。このアモルファス電極１を利用して心電図をとるとき
は、第２図、第３図に示すように身体の皮膚２面にアモ
ルファス電極１を接し、次いで粘着シート３をア・モル
ファス電極１の上から皮膚面に接着しアモルファス電極
１を皮膚２面に接着する。そして皮膚２上に接着された
アモルファス電極ｌの一端部をワニロクリップで挟持す
ると、皮膚面に誘起された微弱電流はアモルファス電極
１、ワニロクリップ４の誘導コード４ａを経て心電計５
に到達し、心電図が得られる。Electrodes are formed from the nickel-based amorphous alloy manufactured as described above, and the manner in which the electricity is used will be explained with reference to the drawings. FIG. 1 shows a plan view of an amorphous electrode for biological use, and an amorphous electrode 1 is formed by cutting the amorphous alloy produced as a thin strip or thin plate into appropriate lengths as described above. When taking an electrocardiogram using this amorphous electrode 1, as shown in FIGS. 2 and 3, the amorphous electrode 1 is brought into contact with two sides of the body's skin, and then the adhesive sheet 3 is placed over the amorphous electrode 1. The amorphous electrode 1 is adhered to the skin surface and the amorphous electrode 1 is adhered to the skin surface 2. When one end of the amorphous electrode l adhered to the skin 2 is held between the alligator clips, the weak current induced on the skin surface passes through the amorphous electrode 1 and the induction cord 4a of the alligator clip 4 to the electrocardiograph 5.
is reached and an electrocardiogram is obtained.
以上本発明によれば、生体用アモルファス電極は上記の
ような構成で銀を素材とする合金ではないので、比較的
廉価に製作でき、コストが低減される。As described above, according to the present invention, since the amorphous electrode for living body has the above-described structure and is not made of an alloy made of silver, it can be manufactured at a relatively low cost, and the cost can be reduced.
第１図は本発明の生体用アモルファス電極の平面図、第
２図、第３図は生体用アモルファス電極の使用説明図。
１・・・・・・生体用アモルファス電極、２・・・・・
・皮膚面、
３・・・・・・粘着シート。
出 願 人 フクダ電子株式会社 他１名代理人弁理
士 鈴 木 淳 也
ａFIG. 1 is a plan view of the amorphous electrode for biological use of the present invention, and FIGS. 2 and 3 are illustrations for explaining the use of the amorphous electrode for biological use. 1... Amorphous electrode for biological use, 2...
・Skin surface, 3... Adhesive sheet. Applicant: Fukuda Denshi Co., Ltd. and one other patent attorney: Junya Suzuki
Claims (5)
Ｐを含み、残部は実質的にＮｉからなり苛酷な腐食環境
に耐える耐孔食、耐隙間腐食、耐全面腐食用高耐食アモ
ルファスニッケル基合金で形成された生体用アモルファ
ス電極。(1) Highly corrosion-resistant amorphous containing 5 to 40 at.% Cr and 15 to 35 at.% P, with the remainder essentially Ni, and is resistant to pitting corrosion, crevice corrosion, and general corrosion, and is resistant to harsh corrosive environments. Amorphous electrode for biological use made of nickel-based alloy.
Ｐを含み、かつ３原子％以下のＡｌ、１０原子％以下の
Ｍｏ、４０原子％未満のＦｅの１種または２種以上を含
み、Ｃｒ、Ｐ、Ａｌ、Ｍｏ、Ｆｅの合計は６０原子％未
満で、残部は実質的にＮｉからなり、苛酷な腐食環境に
耐える耐孔食、耐隙間腐食、耐全面腐食用高耐食アモル
ファスニッケル基合金で形成された特許請求の範囲第１
項に記載の生体用アモルファス電極。(2) Contains 5 to 40 atom% of Cr and 15 to 35 atom% of P, and contains one or more of the following: 3 atom% or less of Al, 10 atom% or less of Mo, and less than 40 atom% of Fe. The total content of Cr, P, Al, Mo, and Fe is less than 60 at. Claim 1 formed of a nickel-based alloy
The amorphous electrode for biological use described in .
を含み、さらにそれぞれ２０原子％以下のＣ、Ｓｉの１
種または２種以上を、Ｐ、Ｃ、Ｓｉの合計で１５〜３５
原子％含み、残部は実質的にＮｉからなり、苛酷な腐食
環境に耐える耐孔食、耐隙間腐食、耐全面腐食用高耐食
アモルファスニッケル基合金で形成された特許請求の第
１項記載の生体用アモルファス電極。(3) 5 to 40 atom% Cr and 5 to 35 atom% P
20 atomic % or less of each of C and Si.
species or two or more species, the total of P, C, Si is 15 to 35
atomic percent, the remainder being substantially Ni, and formed of a highly corrosion-resistant amorphous nickel-based alloy that is resistant to pitting corrosion, crevice corrosion, and general corrosion, and is resistant to harsh corrosive environments. Amorphous electrode for use.
を含み、さらにそれぞれ２０原子％以下のＣ、Ｓｉ、Ｂ
の１種または、２種以上をＰ、Ｃ、Ｓｉ、Ｂの１種また
は、２種以上をＰ、Ｃ、Ｓｉ、Ｂの合計で１５〜３５原
子％含み、かつ３原子％以下のＡｌ（但しＣｒ−Ｐ−Ｂ
−Ａｌ系のときはＡｌ０．５原子％以下を除く）、１０
原子％以下のＭｏ、４０原子％（未満のＦｅの１種また
は２種以上を含み、Ｃｒ、Ｐ、Ｓｉ、Ｂ、Ａｌ、Ｍｏ、
Ｆｅの合計が６０原子％未満で残部は実質的にＮｉから
なり、苛酷な腐食環境に耐える耐孔食、耐隙間腐食、耐
全面腐食用高耐食アモルファスニッケル基合金で形成さ
れた特許請求の範囲第１項記載の生体用アモルファス電
極。(4) 5 to 40 atom% Cr and 5 to 35 atom% P
20 atomic % or less each of C, Si, and B.
Contains one or more of P, C, Si, and B in a total of 15 to 35 atomic %, and 3 atomic % or less of Al ( However, Cr-P-B
-In the case of Al system, excluding Al 0.5 atomic% or less), 10
Mo at % or less, 40 at % or less (including one or more of Fe, Cr, P, Si, B, Al, Mo,
The claim is made of a highly corrosion-resistant amorphous nickel-based alloy with a total Fe content of less than 60 atomic % and the remainder substantially Ni, which is resistant to pitting corrosion, crevice corrosion, and general corrosion and is resistant to severe corrosion environments. The amorphous electrode for biological use according to item 1.
を含み、さらにそれぞれ２０原子％以下のＣ、Ｓｉの１
種または２種、及び２０原子％以下のＢ（但し、Ｎｉ−
Ｃｒ−Ｐ−Ｂ−Ｓｉ系はＳｉ５原子％以下を除く）を、
Ｐ、Ｃ、Ｓｉ、Ｂの合計で１５〜３５原子％含み、残部
は実質的にＮｉからなり、苛酷な腐食環境に耐える耐孔
食、耐隙間腐食、耐全面腐食用高耐食アモルファスニッ
ケル基合金で形成された特許請求の範囲第１項記載の生
体用アモルファス電極。(5) 5 to 40 atom% Cr and 5 to 35 atom% P
20 atomic % or less of each of C and Si.
species or two species, and up to 20 atom % of B (however, Ni-
Cr-P-B-Si system (excluding Si 5 atomic% or less),
A highly corrosion-resistant amorphous nickel-based alloy containing a total of 15 to 35 at% of P, C, Si, and B, with the remainder essentially consisting of Ni, and is resistant to pitting corrosion, crevice corrosion, and general corrosion, and is resistant to severe corrosion environments. An amorphous electrode for biological use according to claim 1, formed of:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62336069A JPH01175837A (en) | 1987-12-29 | 1987-12-29 | Bioamorphous electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62336069A JPH01175837A (en) | 1987-12-29 | 1987-12-29 | Bioamorphous electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01175837A true JPH01175837A (en) | 1989-07-12 |
Family
ID=18295373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62336069A Pending JPH01175837A (en) | 1987-12-29 | 1987-12-29 | Bioamorphous electrode |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01175837A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991015994A1 (en) * | 1990-04-23 | 1991-10-31 | Ad-Tech Medical Instrument Corporation | Electrode for use with magnetic resonance imaging |
| CN102283645A (en) * | 2011-07-20 | 2011-12-21 | 沈玉红 | Electrocardiogram buckled suspension electrode adapter |
| JP2017023754A (en) * | 2015-07-27 | 2017-02-02 | 株式会社アイ・メデックス | Biomedical electrode pad |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61288835A (en) * | 1985-06-18 | 1986-12-19 | フクダ電子株式会社 | Amorphous electrode for living body |
-
1987
- 1987-12-29 JP JP62336069A patent/JPH01175837A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61288835A (en) * | 1985-06-18 | 1986-12-19 | フクダ電子株式会社 | Amorphous electrode for living body |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991015994A1 (en) * | 1990-04-23 | 1991-10-31 | Ad-Tech Medical Instrument Corporation | Electrode for use with magnetic resonance imaging |
| CN102283645A (en) * | 2011-07-20 | 2011-12-21 | 沈玉红 | Electrocardiogram buckled suspension electrode adapter |
| JP2017023754A (en) * | 2015-07-27 | 2017-02-02 | 株式会社アイ・メデックス | Biomedical electrode pad |
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