JPH0539683Y2 - - Google Patents
Info
- Publication number
- JPH0539683Y2 JPH0539683Y2 JP1989010382U JP1038289U JPH0539683Y2 JP H0539683 Y2 JPH0539683 Y2 JP H0539683Y2 JP 1989010382 U JP1989010382 U JP 1989010382U JP 1038289 U JP1038289 U JP 1038289U JP H0539683 Y2 JPH0539683 Y2 JP H0539683Y2
- Authority
- JP
- Japan
- Prior art keywords
- needle electrode
- shape
- scalp
- needle
- electrode
- 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 - Lifetime
Links
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims description 7
- 230000036760 body temperature Effects 0.000 claims description 6
- 238000012360 testing method Methods 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 230000003449 preventive effect Effects 0.000 claims 1
- 210000004761 scalp Anatomy 0.000 description 12
- 230000000694 effects Effects 0.000 description 3
- 206010033372 Pain and discomfort Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 208000030507 AIDS Diseases 0.000 description 1
- 230000036982 action potential Effects 0.000 description 1
- 210000003710 cerebral cortex Anatomy 0.000 description 1
- 238000000537 electroencephalography Methods 0.000 description 1
- 208000002672 hepatitis B Diseases 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は脳波検査用電極構造に関するものであ
る。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to an electrode structure for electroencephalogram testing.
従来この種の脳波検査用電極構造として第４，
５図の構造のものが知られており、すなわちホル
ダー１内に細線状の針電極２（この場合一本であ
るが複数本のものもある）を備えて成り、しかし
て脳波検査時に針電極２を頭皮３内に刺入し、針
電極２及びリード線４を介して大脳皮質の活動電
位を導出し得るように構成されている。
Conventionally, the fourth electrode structure for this type of electroencephalogram test was
The structure shown in Fig. 5 is known, in which a holder 1 is equipped with a thin wire-shaped needle electrode 2 (in this case, there is only one needle, but there are also multiple needle electrodes), and the needle electrode is used during electroencephalography. 2 is inserted into the scalp 3, and action potentials of the cerebral cortex can be derived via the needle electrode 2 and lead wire 4.
しかしながら上記従来構造の場合、その針電極
２は、頭皮３からの離脱を防ぐ必要上、斜め方向
にして深く刺入れて用いられており、このため注
射針のような痛みが伴い、患者に不快感を与えた
り、高度な熟練を必要とするなどの不都合を有し
ている。
However, in the case of the above-mentioned conventional structure, the needle electrode 2 is inserted diagonally and deeply in order to prevent it from coming off the scalp 3, which causes pain similar to that of a hypodermic needle and causes discomfort to the patient. It has disadvantages such as not giving a pleasant sensation and requiring a high level of skill.
本考案はこれらの不都合を解決することを目的
とするもので、その要旨は、ホルダーに針電極を
備えて成り、上記針電極を差し込む時は直線状の
針形状で、差し込み後は体温によつて所定温度に
達すると抜け止め形状に変形するように設定した
形状記憶合金により形成したことを特徴とする脳
波検査用電極構造にある。
The purpose of the present invention is to solve these inconveniences, and its gist is that a holder is equipped with a needle electrode, and when the needle electrode is inserted, it has a straight needle shape, and after insertion, it is heated by body temperature. The electroencephalogram test electrode structure is characterized in that it is formed of a shape memory alloy that is designed to deform into a shape that prevents it from coming off when it reaches a predetermined temperature.
針電極が形状記憶合金により形成されているの
で、この針電極を頭皮内に刺入して置くとその先
端部分が体温によつて形状変形し、この変形によ
り頭皮からの針電極の離脱を防げる。
The needle electrode is made of a shape memory alloy, so when the needle electrode is inserted into the scalp, its tip changes shape due to body temperature, and this deformation prevents the needle electrode from detaching from the scalp. .
第１図乃至第３図は本考案の実施例を示し、第
１，２図は第１実施例、第３図は第２実施例であ
る。
1 to 3 show embodiments of the present invention, FIGS. 1 and 2 are the first embodiment, and FIG. 3 is the second embodiment.
第１，２図において、１は合成樹脂製のホルダ
ーであつて、ホルダー１内に形状記憶合金製の針
電極２、この場合外径0.1〜0.3mm程度にして、常
温では先端が真直ぐになり、所定温度この場合体
温たる36℃程度になると第２図の如く先端が鉤状
に屈曲変形し、常温になると再び先端が真直ぐな
形状に回復し得る形状記憶合金製の針電極２が内
装されている。 In Figures 1 and 2, 1 is a holder made of synthetic resin, and inside the holder 1 is a needle electrode 2 made of a shape memory alloy. In this case, the outer diameter is about 0.1 to 0.3 mm, and the tip is straight at room temperature. , a needle electrode 2 made of a shape-memory alloy is installed, and the tip bends into a hook shape as shown in Fig. 2 when the temperature reaches about 36°C, which is the body temperature in this case, and the tip returns to its straight shape when the temperature reaches room temperature. ing.
４はリード線であつて、図外の脳波検査器本体
に電気的接続される。 4 is a lead wire, which is electrically connected to the main body of the electroencephalogram tester (not shown).
この第１実施例は上記構成であるから、針電極
２を頭皮３内に刺入して置くとその先端は体温に
より鉤状に屈曲変形して喰い込み、このため頭皮
３からの離脱を防ぐことができ、かつ刺入時には
その先端が真直ぐな形状に回復しているため、頭
皮３への刺入れが容易であり、さらにそれほど深
く頭皮３内に刺入れる必要がなくなり、患者に痛
みや不快感を与えることが少なく、それほど高度
な熟練も必要がなく、非常に使用し易いものとな
る。 Since this first embodiment has the above-mentioned configuration, when the needle electrode 2 is inserted into the scalp 3, its tip bends and deforms into a hook shape due to body temperature and bites, thus preventing it from coming off from the scalp 3. Because the tip has recovered to its straight shape at the time of insertion, it is easy to insert it into the scalp 3, and there is no need to insert it so deeply into the scalp 3, causing pain and discomfort to the patient. It does not give much pleasure, does not require a high degree of skill, and is very easy to use.
第２図の第２実施例は、前記第１実施例のホル
ダー１を互いに着脱可能な二個のホルダー体１
ａ，１ｂにより形成し、一方のホルダー体１ａに
前記同様に形状記憶合金製の針電極２を取付け、
他方のホルダー体１ｂに針電極２に対して接触可
能な入力端子５を配設して構成し、針電極２を有
する一方のホルダー体１ａを使い捨てにしてＢ型
肝炎やエイズなどの感染防止を図るように構成し
たものである。 The second embodiment shown in FIG.
a and 1b, and a needle electrode 2 made of a shape memory alloy is attached to one holder body 1a in the same manner as above,
The other holder body 1b is configured with an input terminal 5 that can be contacted with the needle electrode 2, and one holder body 1a having the needle electrode 2 is disposable to prevent infections such as hepatitis B and AIDS. It is designed to achieve this goal.
この第２実施例にあつても第１実施例と同様な
作用効果を得るものである。 This second embodiment also provides the same effects as the first embodiment.
尚、上記実施例の針電極２はその先端が鉤状に
屈曲変形するが、他の適宜形状に変形する形状記
憶合金を用いてもよい。 Although the tip of the needle electrode 2 in the above embodiment is bent and deformed into a hook shape, a shape memory alloy that can be deformed into any other suitable shape may be used.
本考案は上述の如く、針電極を頭皮内に刺入し
て置くとその先端は体温により形状変形し、この
ため頭皮からの離脱を防ぐことができ、かつ刺入
時にはその針電極の先端が真直ぐな形状に回復し
ているため、頭皮への刺入れが容易であり、さら
にそれほど深く頭皮内に刺入れる必要がなく、患
者に痛みや不快感を与えることが少なく、非常に
遣い易いものとなる。
As described above, in this invention, when a needle electrode is inserted into the scalp, the shape of the tip changes due to body temperature, which prevents it from detaching from the scalp. Because it has recovered to its straight shape, it is easy to insert into the scalp, and there is no need to insert it very deeply into the scalp, causing less pain and discomfort to the patient, making it extremely easy to use. Become.
以上、所期の目的を充分達成することができ
る。 As described above, the intended purpose can be fully achieved.
図面は本考案の一実施例を示すもので、第１図
は第１実施例の断面図、第２図はその使用状態
図、第３図は第２実施例の分解断面図、第４図は
従来構造の断面図、第５図はその使用状態図であ
る。
１……ホルダー、２……針電極。
The drawings show one embodiment of the present invention; FIG. 1 is a sectional view of the first embodiment, FIG. 2 is a diagram of its use, FIG. 3 is an exploded sectional view of the second embodiment, and FIG. 4 is a sectional view of the first embodiment. is a cross-sectional view of the conventional structure, and FIG. 5 is a diagram showing its usage state. 1...Holder, 2...Needle electrode.
Claims (1)
差し込む時は直線状の針形状で、差し込み後は体
温によつて所定温度に達すると抜け止め形状に変
形するように設定した形状記憶合金により形成し
たことを特徴とする脳波検査用電極構造。 The holder is equipped with a needle electrode, and when the needle electrode is inserted, it has a straight needle shape, and after insertion, it is made of a shape memory alloy that is designed to deform into a preventive shape when it reaches a predetermined temperature due to body temperature. An electrode structure for electroencephalogram testing characterized by the following.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989010382U JPH0539683Y2 (en) | 1989-01-31 | 1989-01-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989010382U JPH0539683Y2 (en) | 1989-01-31 | 1989-01-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02102204U JPH02102204U (en) | 1990-08-14 |
| JPH0539683Y2 true JPH0539683Y2 (en) | 1993-10-08 |
Family
ID=31217996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989010382U Expired - Lifetime JPH0539683Y2 (en) | 1989-01-31 | 1989-01-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0539683Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011090199A1 (en) * | 2010-01-25 | 2011-07-28 | 国立大学法人九州工業大学 | Brain signal measurement system, in vivo measurement device, and brain signal measurement position control method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5211893B2 (en) * | 1972-10-06 | 1977-04-02 | ||
| JPS5950258B2 (en) * | 1980-11-17 | 1984-12-07 | 住友ベークライト株式会社 | Resin composition for plating |
| JPS63174668A (en) * | 1987-01-14 | 1988-07-19 | オリンパス光学工業株式会社 | Hyperthermia apparatus |
| JPS63311956A (en) * | 1987-06-15 | 1988-12-20 | Kato Hatsujo Kaisha Ltd | Needle for acupuncture and moxibustion |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5211893U (en) * | 1975-07-14 | 1977-01-27 | ||
| JPS56125207U (en) * | 1980-02-22 | 1981-09-24 | ||
| JPS5950258U (en) * | 1982-09-28 | 1984-04-03 | 金井 宏之 | Capturing equipment |
-
1989
- 1989-01-31 JP JP1989010382U patent/JPH0539683Y2/ja not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5211893B2 (en) * | 1972-10-06 | 1977-04-02 | ||
| JPS5950258B2 (en) * | 1980-11-17 | 1984-12-07 | 住友ベークライト株式会社 | Resin composition for plating |
| JPS63174668A (en) * | 1987-01-14 | 1988-07-19 | オリンパス光学工業株式会社 | Hyperthermia apparatus |
| JPS63311956A (en) * | 1987-06-15 | 1988-12-20 | Kato Hatsujo Kaisha Ltd | Needle for acupuncture and moxibustion |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02102204U (en) | 1990-08-14 |
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