JPS63226369A - Magnetic field type hyperthermia apparatus - Google Patents
Magnetic field type hyperthermia apparatusInfo
- Publication number
- JPS63226369A JPS63226369A JP62059995A JP5999587A JPS63226369A JP S63226369 A JPS63226369 A JP S63226369A JP 62059995 A JP62059995 A JP 62059995A JP 5999587 A JP5999587 A JP 5999587A JP S63226369 A JPS63226369 A JP S63226369A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic field
- alternating magnetic
- living body
- coil
- field type
- 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
- 206010020843 Hyperthermia Diseases 0.000 title 1
- 230000036031 hyperthermia Effects 0.000 title 1
- 238000000015 thermotherapy Methods 0.000 claims description 6
- 239000000696 magnetic material Substances 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 description 7
- 201000011510 cancer Diseases 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000005684 electric field Effects 0.000 description 4
- 230000020169 heat generation Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 206010028980 Neoplasm Diseases 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 210000004027 cell Anatomy 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 210000001124 body fluid Anatomy 0.000 description 1
- 239000010839 body fluid Substances 0.000 description 1
- 210000000170 cell membrane Anatomy 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
し発明の目的］
（産業上の利用分野）
本発明は癌治療等に極めて有効な磁界型温熱治療装置に
関するものである。[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention relates to a magnetic field type thermotherapy device that is extremely effective in cancer treatment and the like.
（従来の技術）
癌等の悪性腫瘍は正常細胞に比べて熱に弱い性質があり
、この性質に着目して癌細胞を選択的に長時間加熱する
ことで死滅させることを目的とした治療法がある。これ
を「ハイパーサミャ」と称している。この温熱治療法に
おける加温方式としてＲＦ７ＪＤ温方式があり、電界型
と磁界型とが知られている。電界型は、平行平板間に高
周波電界をかけ、その間に配置された生体中に高周波電
流を流して生体の有する抵抗損によって加温するもので
あり、磁界型はコイルに高周波電流を流し、その交番磁
界中に生体を配置し、生体中に誘起される“うず電流″
と生体の有する抵抗損とによって加温するものである。(Prior art) Malignant tumors such as cancer have a property that they are more sensitive to heat than normal cells, and this treatment focuses on this property and aims to kill cancer cells by selectively heating them for a long time. There is. This is called "Hyper Samya". There is an RF7JD heating method as a heating method in this thermotherapy method, and electric field type and magnetic field type are known. The electric field type applies a high-frequency electric field between parallel plates, and a high-frequency current is passed through the living body placed between them to heat it by the resistance loss of the living body.The magnetic field type applies a high-frequency electric field to a coil and heats the living body. "Eddy current" induced in a living body by placing it in an alternating magnetic field
It is heated by the resistance loss of the living body.
周波数はいずれも通常、８、１３．５６ 、２７．１２
ＭＨ２が使用されている。Frequencies are usually 8, 13.56, 27.12
MH2 is used.
（発明が解決しようとする問題点）
上記の磁界型ＲＦ加温方式においては、表有組織の加温
が容易であるが、高周波（）ＩＨ２）帯を使用する関係
上、コイルに供給されるＲＦ雷電流生成する電源部が複
雑且つ高価にならざるを１ｑず、高磁界を発生し得る装
置の実現が困難であった。(Problems to be Solved by the Invention) In the magnetic field type RF heating method described above, it is easy to heat the superficial tissues, but since the high frequency (IH2) band is used, the power is supplied to the coil. The power supply section that generates the RF lightning current has to be complicated and expensive, making it difficult to realize a device that can generate a high magnetic field.
また予め設計・制作されたコイルを装置本体に装着した
場合にインダクタンス値の変化を生じ、磁場強度が予定
値と異なってし、まうため、交番磁界発生部の設計が困
難であった。Furthermore, when a pre-designed and manufactured coil is attached to the main body of the device, the inductance value changes, causing the magnetic field strength to differ from the planned value and causing problems, making it difficult to design the alternating magnetic field generating section.
本発明は上記事情に鑑みて成されたもので、簡単な構成
でありながら高磁界を容易に発生することができ、しか
も加温効率が良く、更にコイルのインダクタンス値の変
化が少なく交番磁界発生部の設計が容易な磁界型温熱治
療装置の提供を目的としている。The present invention has been made in view of the above circumstances, and has a simple configuration, yet can easily generate a high magnetic field, has good heating efficiency, and generates an alternating magnetic field with little change in the inductance value of the coil. The purpose of the present invention is to provide a magnetic field type thermotherapy device whose parts are easy to design.
［発明の構成］
（問題点を解決するための手段）
本発明は、空心型コイルを有しこの空心型コイルに低周
波電流を供給することにより生体印加用交番磁界を発生
する交番磁界発生部と、生体を前記交番磁界中に配置す
る寝台とを有するものでおる。[Structure of the Invention] (Means for Solving the Problems) The present invention provides an alternating magnetic field generating section that has an air-core coil and generates an alternating magnetic field for biological application by supplying a low-frequency current to the air-core coil. and a bed on which the living body is placed in the alternating magnetic field.
（作 用）
低周波電流を前記コイルに供給することで生体印加用交
番磁界を発生するようにしている。低周波電流の生成に
おいては、高周波電流の生成に比べて電源回路構成上極
めて有利で、簡単な構成でありながら高磁界発生ための
大電流を容易に出力することができる。また、高周波に
比べて取り扱いが容易で、しかも発熱・加温作用が磁界
強度に比例するため熱発生効率が数十パーセント良い。(Function) By supplying a low frequency current to the coil, an alternating magnetic field for biological application is generated. Generation of a low frequency current is extremely advantageous in terms of power supply circuit configuration compared to generation of a high frequency current, and a large current for generating a high magnetic field can be easily outputted with a simple configuration. In addition, it is easier to handle than high-frequency waves, and the heat generation efficiency is several tens of percent higher because the heat generation and heating effects are proportional to the magnetic field strength.
更に前記コイルを空心型としているので、該コイルを装
置本体に装着した場合のインダクタンス値の変化が少な
く又番磁界発生部の設計が容易となる。Furthermore, since the coil is of an air-core type, there is little change in inductance value when the coil is attached to the main body of the device, and the design of the magnetic field generating section is facilitated.
（実施例） 以下、本発明の実施例について説明する。(Example) Examples of the present invention will be described below.
第１図（ａ）は本発明の一実施例装置の構成を示してい
る。同図に示すように本実施例装置は、電源部１．交番
磁界発生部２．副制御３．寝台４を有する。FIG. 1(a) shows the configuration of an apparatus according to an embodiment of the present invention. As shown in the figure, the device of this embodiment includes a power supply section 1. Alternating magnetic field generating section 2. Sub-control 3. It has 4 beds.
電源部１は低周波数（数十ＫＨｚ以下）の交流電流を出
力するもので、この低周波電流は、後段に配置された交
番磁界発生部２に供給されるようになっている。The power supply unit 1 outputs an alternating current with a low frequency (several tens of KHz or less), and this low frequency current is supplied to an alternating magnetic field generating unit 2 disposed at a subsequent stage.
交番磁界発生部２は、取り込まれた低周波電流に基づい
て生体印加用の交番磁界を発生するもので、その詳細な
構成については後述する。The alternating magnetic field generating section 2 generates an alternating magnetic field for application to a living body based on the taken in low frequency current, and its detailed configuration will be described later.
又、寝台４は生体Ｐを載置するもので、Ｙ方向に上下動
し、且つ、生体Ｐを載置した状態で矢印Ｘ方向に移動可
能な寝台天板５を備えている。Further, the bed 4 is for placing the living body P, and is provided with a bed top plate 5 which can move up and down in the Y direction and can move in the direction of the arrow X with the living body P placed thereon.
制御部３はこの寝台４及び前記電源部１の動作制御を司
るものである。The control section 3 controls the operation of the bed 4 and the power supply section 1.
同図に示すようにこの交番磁界発生部２は、所定の空隙
を有して対向配置され且つ前記電源部１よりの低周波電
流の供給によって生体印加用交番磁界を発生する一組の
コイル６．７と、この−組のコイル６．７を支持する支
持部材１０とを備えている。前記−組のコイル６．７は
それぞれ所定のインダクタンス値を有して予め設計・制
作されたもので、円筒状をなし、コイル中心部に磁心を
持たない構造、所謂空心型となっており、枠体状に形成
された支持部材１０の上部及び下部に取り付けられてい
る。支持部材１０としては非磁性鋼材が適用されている
。しかして前記寝台天板５上の生体Ｐは、前記一旦のコ
イル６．７間に配置されるようになっている。尚、１１
はこの交番磁界発生部２を載置するスタンドである。As shown in the figure, this alternating magnetic field generating section 2 includes a set of coils 6 that are arranged opposite to each other with a predetermined gap and that generate an alternating magnetic field for biological application by supplying a low frequency current from the power supply section 1. .7 and a support member 10 that supports this set of coils 6.7. The coils 6.7 of the - group are each designed and manufactured in advance with a predetermined inductance value, and have a cylindrical shape and a structure without a magnetic core in the center of the coil, so-called an air-core type. It is attached to the upper and lower parts of the support member 10 formed in the shape of a frame. The support member 10 is made of non-magnetic steel. The living body P on the bed top plate 5 is arranged between the coils 6 and 7. In addition, 11
is a stand on which this alternating magnetic field generating section 2 is placed.
上記の構成において、制御部３の制御により、寝台天板
５上の生体Ｐが磁極６，７間に配置され、この状態で電
源部１よりコイル６，７に低周波電流が供給されると、
この低周波電流によって交番磁界が発生し、これが生体
Ｐに印加される。生体の構成組織や体液は全て電気を通
す導体と考えることができ、従って、前記交番磁界の印
加により生体中にうず電流が流れる。交番磁界の方向と
垂直な閉ループに流れるうず電流の密度Ｉは、■＝μ・
Ｒ−Ｂ−ＣＯ３（２πｆｔ＞
但しμ：導電率 Ｒ：半径
Ｂ：磁束密度 ｆ：周波数
と表わされ、このうず電流と生体の有する抵抗損とによ
って生体Ｐが加温される。しかして細胞膜の電気特性か
ら数十ＫｔｌＺ以下の低周波では、体内うず電流による
刺激作用と発熱・加温作用とが顕著で（数十ＫＨ２以上
では発熱・加温作用が主体）、この刺激作用により代謝
促進が図られるため治療効果が大きい。In the above configuration, under the control of the control unit 3, the living body P on the bed top plate 5 is placed between the magnetic poles 6 and 7, and in this state, low frequency current is supplied from the power supply unit 1 to the coils 6 and 7. ,
This low frequency current generates an alternating magnetic field, which is applied to the living body P. All of the constituent tissues and body fluids of a living body can be considered to be conductors that conduct electricity, and therefore, eddy currents flow in the living body due to the application of the alternating magnetic field. The density I of the eddy current flowing in a closed loop perpendicular to the direction of the alternating magnetic field is ■=μ・
R-B-CO3 (2πft> where μ: conductivity R: radius B: magnetic flux density f: frequency, the living body P is heated by this eddy current and the resistance loss of the living body.Thus, the cell membrane From the electrical characteristics of The therapeutic effect is great because it aims to achieve this.
交番磁界強度及び周波数は制御部３によって制御される
。The alternating magnetic field strength and frequency are controlled by the control unit 3.
このように本実施例装置にあっては、低周波電流によっ
て交番磁界を発生させるようにしたので、高周波電流に
よる場合に比べて大電流化が容易でおる。特に商用電源
周波数（５０乃至１２０ＫＨ２）をそのまま適用するこ
とも可能で、この場合の電源部は極めて簡単に構成する
ことができる。又、高周波に比べて取り扱いも容易であ
り、発熱・加温作用も磁界強度に比例するので熱発生効
率が数十パーセント良くなり、表有組織のみならず生体
深部の加温も可能となるなど種々の利点を有する。In this way, in the device of this embodiment, since the alternating magnetic field is generated using a low frequency current, it is easier to increase the current compared to when using a high frequency current. In particular, it is also possible to apply the commercial power supply frequency (50 to 120 KH2) as is, and the power supply section in this case can be configured extremely easily. In addition, it is easier to handle than high frequency, and the heat generation and warming effects are proportional to the magnetic field strength, so the heat generation efficiency is improved by several tens of percent, making it possible to heat not only superficial tissues but also deep parts of the body. It has various advantages.
特に、−組のコイル６．７を空心型としたので、該コイ
ル６．７を支持部材１０に取り付けた際のインダクタン
ス値の変化が少なく、予定通りの交番磁場強度が冑られ
、この交番磁場発生部２の設計が容易となる。この効果
は支持部材１０に非磁性体鋼材を適用することで更に顕
著となる。また、このような構成は、交番磁場発生部２
全体の重量を低減する上でも効果的で、交番磁場発生部
２の軽量化を容易に達成し得る。In particular, since the coil 6.7 of the - group is an air-core type, there is little change in the inductance value when the coil 6.7 is attached to the support member 10, and the intensity of the alternating magnetic field is reduced as expected. The design of the generator 2 becomes easy. This effect becomes even more remarkable when non-magnetic steel is used for the support member 10. Moreover, such a configuration is applicable to the alternating magnetic field generating section 2
This is also effective in reducing the overall weight, and the weight of the alternating magnetic field generating section 2 can be easily reduced.
尚、本発明は上記実施例に限定されるものではなく、種
々の変形実施が可能となる。例えば第１図（ｂ）では生
体Ｐを包囲するように支持部材１０を形成したが、第２
図に示すように略コ字状の支持部材１０Ａによってコイ
ル６．７を支持するようにしても良い。かかる構成にお
いては、交番磁場中への生体Ｐの出し入れが容易になる
。交番磁界発生部の重量が更に低下する。笠の利点があ
る。又、第３図に示すように、支持部材１０Ａの中央部
より回転軸３２を延在形成し、この回転軸３２を略し字
状架台３４によって回転自在に支持し、回転駆動手段３
５の回転駆動によって支持部材１０Ａを回転するように
してもよい。ここでは、回転駆動手段３５として、モー
タ３０と、このモータ３０のシャフトに軸支されたウオ
ーム３１と、前記回転軸３２に取り付けられウオーム３
１に噛合するウオームホイル３３とを有して成るものを
適用している。かかる構成によれば、モータ３０の回転
により、生体Ｐに対する交番磁界印加角を調整できると
いう利点を有する。尚、ウオームギヤの代わりにベルト
やチェーン等を適用することもできる。Note that the present invention is not limited to the above-mentioned embodiments, and various modifications can be made. For example, in FIG. 1(b), the support member 10 is formed so as to surround the living body P, but the second
As shown in the figure, the coil 6.7 may be supported by a substantially U-shaped support member 10A. In such a configuration, it becomes easy to take the living body P into and out of the alternating magnetic field. The weight of the alternating magnetic field generating section is further reduced. There are advantages to having a hat. Further, as shown in FIG. 3, a rotating shaft 32 is formed extending from the center of the support member 10A, and this rotating shaft 32 is rotatably supported by an oval-shaped pedestal 34.
The support member 10A may be rotated by the rotational drive shown in FIG. Here, the rotational driving means 35 includes a motor 30, a worm 31 pivotally supported on the shaft of the motor 30, and a worm 31 attached to the rotating shaft 32.
A worm wheel 33 that meshes with the worm wheel 1 is used. This configuration has the advantage that the application angle of the alternating magnetic field to the living body P can be adjusted by rotating the motor 30. Note that a belt, chain, or the like may be used instead of the worm gear.
更に第４図に示すように中空部を有してリング状に巻回
されたコイル８の中空部内に生体Ｐを挿入配置するよう
にしてもよい。コイル８は空心型で、生体Ｐの体軸と直
交するように支持されている。この場合、１個の空心型
コイル８によって交番磁界発生部２Ａを構成することが
できる。Furthermore, as shown in FIG. 4, the living body P may be inserted into the hollow part of the coil 8 which has a hollow part and is wound in a ring shape. The coil 8 is of an air-core type and is supported so as to be perpendicular to the body axis of the living body P. In this case, one air-core coil 8 can constitute the alternating magnetic field generating section 2A.
［発明の効果］
以上詳述したように本発明によれば、簡単な構成であり
ながら高磁界を容易に発生することができ、しかも加熱
効率が良く、更にコイルのインダクタンス値の変化が少
なく交番磁界発生部の設計が容易な磁界型温熱治療装置
を提供することができる。[Effects of the Invention] As detailed above, according to the present invention, it is possible to easily generate a high magnetic field despite having a simple configuration, the heating efficiency is good, and there is little change in the inductance value of the coil. It is possible to provide a magnetic field type thermotherapy device whose magnetic field generating section is easy to design.
第１図（ａ）は本発明一実施例装置のブロック図、第１
図（ｂ）は本実施例装置における交番磁界発生部の説明
図、第２図乃至第４図は他の実施例の説明図である。
１・・・電源部、２，２Ａ・・・交番磁界発生部、４・
・・寝台、６，７．８・・・空心型コイル、１０．１０
Ａ・・・支持部材、Ｐ・・・生体。
代理人 弁理士 則 近 憲 缶周 大
胡 典 夫（Ｇ）
第１図
第２図
第３図FIG. 1(a) is a block diagram of an apparatus according to an embodiment of the present invention.
FIG. 2B is an explanatory diagram of the alternating magnetic field generating section in the apparatus of this embodiment, and FIGS. 2 to 4 are explanatory diagrams of other embodiments. 1... Power supply section, 2,2A... Alternating magnetic field generation section, 4.
...Bed, 6,7.8...Air-core coil, 10.10
A...Supporting member, P...Living body. Agent: Patent Attorney Ken Nori Chika Kenshu Daigo Norio (G) Figure 1 Figure 2 Figure 3
Claims (3)
流を供給することにより生体印加用交番磁界を発生する
交番磁界発生部と、生体を前記交番磁界中に配置する寝
台とを有することを特徴とする磁界型温熱治療装置。(1) It has an alternating magnetic field generation section that has an air-core coil and generates an alternating magnetic field for applying to a living body by supplying a low-frequency current to the air-core coil, and a bed for placing the living body in the alternating magnetic field. A magnetic field type thermotherapy device featuring:
配置された一対の空心型コイルと、このコイルを支持す
る支持部材とを有する特許請求の範囲第１項記載の磁界
型温熱治療装置。(2) The alternating magnetic field generation section includes a pair of air-core coils that are arranged opposite to each other with a predetermined gap, and a support member that supports the coils. treatment equipment.
囲第２項記載の磁界型温熱治療装置。(3) The magnetic field type thermotherapy device according to claim 2, wherein the support member is made of a non-magnetic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62059995A JPS63226369A (en) | 1987-03-17 | 1987-03-17 | Magnetic field type hyperthermia apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62059995A JPS63226369A (en) | 1987-03-17 | 1987-03-17 | Magnetic field type hyperthermia apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63226369A true JPS63226369A (en) | 1988-09-21 |
Family
ID=13129260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62059995A Pending JPS63226369A (en) | 1987-03-17 | 1987-03-17 | Magnetic field type hyperthermia apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63226369A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02232069A (en) * | 1989-03-06 | 1990-09-14 | Shingo Ogasawara | Alternative current magnetic treatment device |
-
1987
- 1987-03-17 JP JP62059995A patent/JPS63226369A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02232069A (en) * | 1989-03-06 | 1990-09-14 | Shingo Ogasawara | Alternative current magnetic treatment device |
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