JP2892181B2 - Magnetic stimulation coil - Google Patents

Magnetic stimulation coil

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Publication number
JP2892181B2
JP2892181B2 JP12928291A JP12928291A JP2892181B2 JP 2892181 B2 JP2892181 B2 JP 2892181B2 JP 12928291 A JP12928291 A JP 12928291A JP 12928291 A JP12928291 A JP 12928291A JP 2892181 B2 JP2892181 B2 JP 2892181B2
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JP
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Prior art keywords
stimulation
coil
scalp
stimulation coil
magnetic stimulation
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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 - Fee Related
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JP12928291A
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Japanese (ja)
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JPH05237197A (en )
Inventor
照剛 上野
賢司 下畑
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三菱電機株式会社
照剛 上野
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Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【産業上の利用分野】この発明は、生体の神経細胞を生体外から電磁的に刺激するための刺激コイルに関するものである。 BACKGROUND OF THE INVENTION This invention relates to stimulating coil for electromagnetically stimulating the biological neurons from vitro.

【0002】 [0002]

【従来の技術】図5は例えば、IEEE Transa Description of the Prior Art FIG. 5, for example, IEEE Transa
ction on Magnetics,Vol. ction on Magnetics, Vol. MA MA
G−26,No5. G-26, No5. September 1990に記載された従来の刺激コイルを使用した脳神経刺激法である。 September a cranial nerve stimulation using conventional stimulation coils described in 1990. 図において、1、2は頭皮に平行に置かれた刺激コイル、3、4は刺激コイルによって頭部誘導された誘導電流、5は刺激する神経細胞である。 In the figure, stimulation coils placed parallel to the scalp, 2, 3 and 4 the head induced induced current by the stimulation coil, 5 is a neuron stimulating.

【0003】次に動作について説明する。 [0003] Next, the operation will be described. 刺激コイルにパルス電流を流すと、脳内にパルス磁界が発生し、その磁界を打ち消す向きに誘導電流3が流れる。 When a pulse current to the stimulation coil, pulse magnetic field is generated in the brain, induced current 3 flows in the direction of canceling the magnetic field. 刺激コイル2においても同様である。 The same applies to the stimulation coil 2. 刺激コイル1、2に同時にお互いに逆向きのパルス電流を流すと、コイル1、2の接点において誘導電流は強められ接点位置に対応する神経細胞5を刺激する。 When a pulse current in the opposite direction to each other at the same time stimulating coils 1 and 2, the induced current in the contact of the coils 1 and 2 are stimulating neural cell 5 corresponding to the contact position strengthened. この場合神経細胞5に流れる誘導電流は、コイルすなわち頭皮に平行面内を流れ、1方向の方向性(コイル1、2の接する部分の電流の方向と同じ)を持つ。 Induction current which flows in this case the nerve cells 5, flows through the coil, parallel plane to the scalp, with a one-way directional (same as the direction of current portion contacting the coils 1 and 2). 5の神経細胞のうち誘導電流が細胞体側から末梢側に向って流れている神経細胞のみが刺激される。 Induced current of 5 neurons only nerve cells flowing toward the cell side peripheral side is stimulated. すなわち誘導電流と同方向の神経細胞のみが刺激される。 That only induced currents in the same direction as the nerve cells are stimulated. ここで、神経細胞の方向とは細胞体側から末梢側に向う方向とする。 Here, the direction of neurons and direction from the cell side peripheral side.

【0004】 [0004]

【発明が解決しようとする課題】従来の磁気刺激コイルは以上のように構成されているので、頭皮または体表面に垂直な方向を向いている神経細胞を刺激することができないという問題があった。 Since THE INVENTION Problems to be Solved] Conventional magnetic stimulation coil is constructed as described above, there is a problem that it is impossible to stimulate nerve cells facing the direction perpendicular to the scalp or body surface .

【0005】この発明は上記のような問題点を解消するためになされたもので、任意の方向を向いている神経細胞をすべて刺激できることを目的とする。 [0005] The present invention has been made to solve the above problems, and an object to be able to stimulate all the neurons have any orientation.

【0006】 [0006]

【課題を解決するための手段】この発明に係る磁気刺激コイルは、生体の神経細胞を電磁気的に刺激するための Means for Solving the Problems] magnetic stimulation coil according to the present invention, for electromagnetically stimulating the biological neurons
複数個のコイルを、頭皮または体表面と垂直に且つ上記 A plurality of coils, scalp or body surface perpendicular to and above
複数個のコイルが互いに対向する位置に上記神経細胞が Is the nerve cells in the position in which a plurality of coils facing each other
対応するように配置し、上記複数個のコイルの各辺が互 Arranged so as corresponding, respective sides of the plurality of coils each other
いに対向する位置において電流方向が同方向になるよう So that the current direction becomes the same direction at the position opposite to have
に上記複数個のコイルに電流を流すように構成したものである。 To those configured to flow a current to the plurality of coils. また、 頭皮または体表面と垂直に配置した複数 Also, plurality of vertically arranged and scalp or body surface
個のコイルに加え、頭皮または体表面と水平に配置した In addition to the number of coils, arranged horizontally and scalp or body surface
複数個のコイルを備えたものである。 Those having a plurality of coils. また、 磁気刺激コ In addition, magnetic stimulation co
イルの刺激対象物に隣接する部分を、刺激対象物の外形 A portion adjacent to a stimulus object yl, external stimuli object
形状に合わせて形成したものである。 It is obtained by forming to the shape.

【0007】 [0007]

【作用】この発明における磁気刺激コイルは、刺激コイルが頭皮または体表面に垂直な誘導電流を誘導するので、頭皮または体表面に垂直に神経細胞が配置されている場合でも神経刺激が行える。 [Action] magnetic stimulation coils in the present invention, stimulation coils so induces a perpendicular induced current to the scalp or body surface, can be performed even if the nerve stimulation vertically neurons scalp or body surface is disposed.

【0008】また、頭皮または体表面に平行に置かれた刺激コイル対と頭皮または体表面に垂直に置かれた刺激コイル対は、頭皮または体表面に任意の方向の誘導電流を誘導し、すべての神経細胞を刺激する。 Further, the stimulation coil pair disposed perpendicular to the scalp or body stimulation coil pairs placed parallel to the surface and scalp or body surface, induces induction currents in the arbitrary direction to the scalp or body surface, all to stimulate the nerve cells.

【0009】 [0009]

【実施例】 【Example】

実施例1. Example 1. 以下この発明の一実施例を図について説明する。 Hereinafter an embodiment of the present invention with reference to FIG be described. 図1において5は神経細胞、6は頭皮、7、8は2 5 neurons in FIG. 1, 6 scalp, 7,8 2
つのコイルの接する辺が頭皮に垂直に置かれた刺激コイルである。 One of the sides in contact with the coil is stimulated coil placed perpendicular to the scalp. 3、4は刺激コイルにより誘導された誘導電流である。 3 and 4 an induction current induced by stimulation coil.

【0010】 刺激コイル7、8は、頭皮または体表面と [0010] stimulation coil 7 and 8, and the scalp or body surface
垂直に且つ刺激コイル7と8が対向する位置に神経細胞 Neurons vertically and stimulation coil 7 and 8 are opposed position
5が対応するように配置されている。 5 is arranged so as to correspond. 刺激コイル7、8 Stimulation coil 7, 8
に、図の実線矢印のように、刺激コイル7、8の接点位 , As a solid line arrow in the figure contacts position stimulation coils 7,8
置、即ち両コイルが互いに対向する位置において電流方 Location, i.e., the current direction in the position where both coils are opposed to each other
向が同方向となるように電流を流すことによって、頭皮 By flowing a current such direction is the same direction, the scalp
または体表面に誘導電流3、4が流れ、この誘導電流 Or body induced currents 3,4 to flow to the surface, the induced current
3、4は、対応する神経細胞5で頭皮または体表面に対 3 and 4, pairs scalp or body surface with the corresponding neuronal 5
して垂直方向に強められ、効果的に垂直方向の神経細胞 It strengthened in the vertical direction to effectively vertical neurons
5を刺激することができる。 5 it is possible to stimulate.

【0011】実施例2. [0011] Example 2. また、他の実施例を図2に示す。 Also, showing another embodiment in FIG. 刺激コイル7、8、9、10を4個並べたもので神経細胞位置での誘導電流が2個のものに比べ2倍となり、刺激が容易に行える。 Induced currents in neurons located in an ordered four stimulation coils 7, 8, 9, 10 is doubled compared to two things, stimulation can be performed easily. また、上記実施例では刺激コイルを4個としたが、2個以上ならばいくらでもよい。 Further, in the above embodiment, the four stimulation coils, plenty good if two or more.

【0012】実施例3. [0012] Example 3. 他の実施例を図3に示す。 Another embodiment shown in FIG. 垂直方向の刺激コイル7、8および水平方向の刺激コイル1、2を組み合わせたもので、それぞれの電流値を変えることにより、頭皮から任意の角度の誘導電流を発生させることができる。 A combination of vertical stimulation coils 7,8 and horizontal stimulation coils 1, by changing the respective current values, it is possible to generate an induced current of an arbitrary angle from the scalp. これによりすべての方向を向いた神経細胞を刺激することができる。 Thus it is possible to stimulate the nerve cells facing all directions.

【0013】実施例4. [0013] Example 4. 他の実施例を図4に示す。 Another embodiment shown in FIG. 垂直方向の刺激コイル7、8の頭皮に近い部分を頭皮と同様な曲率としたものである。 The portion close to the scalp in the vertical direction of the stimulation coil 7,8 is obtained by the scalp similar curvature. 水平方向の刺激コイルにも適用できる。 It can be applied to horizontal stimulation coil. これにより、刺激コイルの発生する磁界が体内に入る割合が増え、効率よく刺激できる。 Thus, the magnetic field generated stimulus coil increases the percentage enter the body, it can be efficiently stimulated.

【0014】 [0014]

【発明の効果】以上のように、 請求項1記載の発明によ As is evident from the foregoing description, the invention of claim 1, wherein
れば、生体の神経細胞を電磁気的に刺激するための複数 Lever, a plurality for electromagnetically stimulating the biological neurons
個のコイルを、頭皮または体表面と垂直に且つ複数個の The number of coils, perpendicular to the scalp or body surface and a plurality of
コイルが互いに対向する位置に神経細胞が対応するよう As the coil neurons correspond to opposing positions
に配置し、複数個のコイルが互いに対向する位置におい Placed, a plurality of coils facing each other positioned smell
て電流方向が同方向になるように複数個のコイルに電流 Current to a plurality of coils such that the current direction becomes the same direction Te
を流すように構成したので、複数個のコイルが互いに対 Since it is configured to flow a, a plurality of coil pairs to each other
向する位置に対応する頭皮または体表面に垂直な神経細胞を刺激できる効果がある。 There is an effect capable of stimulating perpendicular neurons scalp or body surface corresponding to the position where the direction.

【0015】また、 請求項2記載の発明によれば、頭皮 [0015] According to the second aspect of the present invention, the scalp
または体表面と垂直に配置した複数個のコイルに加え、 Or in addition to the plurality of coils arranged perpendicular to the body surface,
頭皮または体表面と水平に配置した複数個のコイルを備 Bei a plurality of coils arranged horizontally and scalp or body surface
えたので、複数個のコイルが互いに対向する位置に対応 Because it was example, corresponding to the position where a plurality of coils facing each other
するすべての神経細胞を刺激できる効果がある。 There is an effect that can stimulate all the nerve cells.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】この発明の一実施例による磁気刺激コイルの配置図である。 1 is a layout view of a magnetic stimulation coil according to an embodiment of the present invention.

【図2】この発明の他の実施例による磁気刺激コイルの配置図である。 2 is a layout view of a magnetic stimulation coil according to another embodiment of the present invention.

【図3】この発明の他の実施例による磁気刺激コイルの配置図である。 3 is a layout view of a magnetic stimulation coil according to another embodiment of the present invention.

【図4】この発明の他の実施例による磁気刺激コイルの配置図である。 4 is a layout view of a magnetic stimulation coil according to another embodiment of the present invention.

【図5】従来の磁気刺激コイルの配置図である。 Figure 5 is a layout diagram of a conventional magnetic stimulation coil.

【符号の説明】 DESCRIPTION OF SYMBOLS

1,2 水平方向の刺激コイル 3,4 誘導電流 5 神経細胞 6 頭皮 7,8,9,10 垂直方向の刺激コイル 1,2 horizontal stimulation coils 3, 4 induced current 5 neurons 6 scalp 7,8,9,10 vertical stimulation coil

フロントページの続き (58)調査した分野(Int.Cl. 6 ,DB名) A61N 2/00 A61N 1/40 Front page of the continuation (58) investigated the field (Int.Cl. 6, DB name) A61N 2/00 A61N 1/40

Claims (3)

    (57)【特許請求の範囲】 (57) [the claims]
  1. 【請求項1】 生体の神経細胞を電磁気的に刺激するための複数個のコイルを、頭皮または体表面と垂直に且つ [Claim 1] a plurality of coils for electromagnetically stimulating the biological neurons, and perpendicular to the scalp or body surface
    上記複数個のコイルが互いに対向する位置に上記神経細 The neurofibrillary the position where the plurality of coils are opposite to each other
    胞が対応するように配置し、上記複数個のコイルが互い Cells are arranged so as to correspond, the plurality of coils to each other
    に対向する位置において電流方向が同方向になるように As the current direction becomes the same direction at a position opposed to
    上記複数個のコイルに電流を流すように構成したことを特徴とする磁気刺激コイル。 Magnetic stimulation coil which is characterized by being configured to flow a current to the plurality of coils.
  2. 【請求項2】 頭皮または体表面と垂直に配置した複数 2. A plurality of vertically disposed and scalp or body surface
    個のコイルに加え、頭皮または体表面と水平に配置した In addition to the number of coils, arranged horizontally and scalp or body surface
    複数個のコイルを備えたことを特徴とする請求項1記載の磁気刺激コイル。 Magnetic stimulation coil according to claim 1, characterized by comprising a plurality of coils.
  3. 【請求項3】 磁気刺激コイルの刺激対象物に隣接する Adjacent to 3. Stimulation object magnetic stimulation coil
    部分を、上記刺激対象物の外形形状に合わせて形成した The portions were formed in accordance with the outer shape of the stimulus object
    ことを特徴とする請求項1または2記載の磁気刺激コイ Magnetic stimulation carp claim 1 or 2, wherein the
    ル。 Le.
JP12928291A 1991-05-31 1991-05-31 Magnetic stimulation coil Expired - Fee Related JP2892181B2 (en)

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WO2006109720A1 (en) * 2005-04-08 2006-10-19 Hakuju Institute For Health Science Co., Ltd. Affected part treatment tool
US7407478B2 (en) 2000-10-20 2008-08-05 The United States Of America As Represented By The Department Of Health And Human Services Coil for magnetic stimulation
JP2015077484A (en) * 2005-06-16 2015-04-23 ブレインズウェイ インコーポレイテッド Transcranial magnetic stimulation system and methods

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JP3739283B2 (en) * 1998-11-20 2006-01-25 清 佐藤 Magnetic resonance therapy device
US8118722B2 (en) 2003-03-07 2012-02-21 Neuronetics, Inc. Reducing discomfort caused by electrical stimulation
US7520848B2 (en) 2004-04-09 2009-04-21 The Board Of Trustees Of The Leland Stanford Junior University Robotic apparatus for targeting and producing deep, focused transcranial magnetic stimulation
US7857746B2 (en) * 2004-10-29 2010-12-28 Nueronetics, Inc. System and method to reduce discomfort using nerve stimulation
JP2006255314A (en) * 2005-03-18 2006-09-28 Material Sendai:Kk Magnetic field generator
US9352167B2 (en) 2006-05-05 2016-05-31 Rio Grande Neurosciences, Inc. Enhanced spatial summation for deep-brain transcranial magnetic stimulation
US8052591B2 (en) 2006-05-05 2011-11-08 The Board Of Trustees Of The Leland Stanford Junior University Trajectory-based deep-brain stereotactic transcranial magnetic stimulation
US8956274B2 (en) 2007-08-05 2015-02-17 Cervel Neurotech, Inc. Transcranial magnetic stimulation field shaping
EP2183025B1 (en) 2007-08-20 2017-07-05 Cervel Neurotech, Inc. Firing patterns for deep brain transcranial magnetic stimulation
US8265910B2 (en) 2007-10-09 2012-09-11 Cervel Neurotech, Inc. Display of modeled magnetic fields
US8723628B2 (en) 2009-01-07 2014-05-13 Cervel Neurotech, Inc. Shaped coils for transcranial magnetic stimulation
US9492679B2 (en) 2010-07-16 2016-11-15 Rio Grande Neurosciences, Inc. Transcranial magnetic stimulation for altering susceptibility of tissue to pharmaceuticals and radiation

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US7407478B2 (en) 2000-10-20 2008-08-05 The United States Of America As Represented By The Department Of Health And Human Services Coil for magnetic stimulation
WO2006109720A1 (en) * 2005-04-08 2006-10-19 Hakuju Institute For Health Science Co., Ltd. Affected part treatment tool
JP2015077484A (en) * 2005-06-16 2015-04-23 ブレインズウェイ インコーポレイテッド Transcranial magnetic stimulation system and methods

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