JPS628188B2 - - Google Patents
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- Publication number
- JPS628188B2 JPS628188B2 JP57010155A JP1015582A JPS628188B2 JP S628188 B2 JPS628188 B2 JP S628188B2 JP 57010155 A JP57010155 A JP 57010155A JP 1015582 A JP1015582 A JP 1015582A JP S628188 B2 JPS628188 B2 JP S628188B2
- Authority
- JP
- Japan
- Prior art keywords
- microwave
- heated
- temperature
- applicator
- affected area
- 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
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- Radiation-Therapy Devices (AREA)
Description
【発明の詳細な説明】
本発明はマイクロ波加温治療装置、特に被加温
体内部の温度を照射されたマイクロ波による誘電
損を利用して上昇させるマイクロ波加温治療装置
に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a microwave heating treatment device, and more particularly to a microwave heating treatment device that increases the temperature inside a body to be heated using dielectric loss caused by irradiated microwaves.
例えば、癌等の悪性腫瘍は42〜45℃で一定時間
加温すると、癌細胞が消滅したり、他の治療法が
より効果的となることが知られている。 For example, it is known that when malignant tumors such as cancer are heated at 42 to 45°C for a certain period of time, cancer cells disappear or other treatments become more effective.
このため、生体内部における患部を加温する装
置として、マイクロ波加温治療装置が提案されて
いる。このマイクロ波加温治療装置は生体内部の
患部に向けマイクロ波を照射し、生体内部に引き
起こされる誘電損を利用して患部を加温するもの
である。しかし、このようなマイクロ波加温治療
装置を使用し、加温治療を施すためには、生体内
部における患部の温度を常に42〜45℃程度に維持
するよう、上記加温治療装置を制御する必要があ
る。 For this reason, a microwave heating treatment device has been proposed as a device for heating an affected area inside a living body. This microwave heating treatment device irradiates microwaves to an affected area inside a living body and heats the affected area by utilizing dielectric loss caused inside the living body. However, in order to perform heating treatment using such a microwave heating treatment device, the heating treatment device must be controlled so that the temperature of the affected area inside the body is always maintained at about 42 to 45 degrees Celsius. There is a need.
本発明はこのような点に鑑みなされたもので、
その目的は、被加温体の加温温度を任意の値に効
率良く制御することの可能なマイクロ波加温治療
装置を提供することにある。 The present invention was made in view of these points,
The purpose is to provide a microwave heating treatment device that can efficiently control the heating temperature of a heated body to an arbitrary value.
上記目的を達成するために、本発明は測定装置
により測定された被加温体の加温温度に基づいて
マイクロ波発振器の出力を制御し、マイクロ波発
振器から伝送されるマイクロ波エネルギをアプリ
ケータを介して被加温体に向け放射することによ
り被加温体を誘電加熱するマイクロ波加温治療装
置において、上記測定装置として、マイクロ波発
振器からアプリケータに伝送されるマイクロ波エ
ネルギの進行波と反射波とを方向性結合器により
分離測定し被加温体に入射されるマイクロ波エネ
ルギの実効入力を測定する入射エネルギ測定器
と、被加温体の加温部位に刺入され加温部位の温
度測定を行う温度センサと、を用いたことを特徴
とする。 In order to achieve the above object, the present invention controls the output of a microwave oscillator based on the heating temperature of the object to be heated measured by a measuring device, and applies the microwave energy transmitted from the microwave oscillator to an applicator. In a microwave heating treatment device that dielectrically heats an object to be heated by emitting radiation toward the object through An incident energy measuring device that separates and measures the reflected wave and the reflected wave using a directional coupler and measures the effective input of microwave energy incident on the object to be heated; The present invention is characterized by using a temperature sensor that measures the temperature of the site.
次に本発明の好適な実施例を図面に基づき説明
する。 Next, preferred embodiments of the present invention will be described based on the drawings.
図において、１０は被加温体としての人体１２
の患部に向けマイクロ波を照射するアプリケータ
であり、このアプリケータ１０には、同軸ケーブ
ルあるいは導波管等のマイクロ波伝送線路を介し
てマイクロ波発振器１４からマイクロ波エネルギ
が伝送される。このアプリケータ１０はマイクロ
波伝送線路との接続部において、伝送されてくる
マイクロ波エネルギの反射が生じないよう十分な
整合がとられているとともに、マイクロ波が照射
される人体１２に対しても、人体表面におけるマ
イクロ波の反射を可能な限り抑制するよう十分な
整合がとられている。しかし、この人体表面およ
びマイクロ波伝送線路との接続部における反射は
完全には抑制することができない。従つて、マイ
クロ波発振器１４からアプリケータ１０に向け伝
送されたマイクロ波エネルギのうち、実際に人体
１０内へ入射され患部の加温に役立つている実効
入力を測定するため、マイクロ波発振器１４とア
プリケータ１０とを結ぶマイクロ波伝送線路に入
射エネルギ測定器１６が設けられている。この測
定器１６はマイクロ波伝送線路中を発振器１４か
らアプリケータ１０の方向へ伝送されるマイクロ
波の進行波を測定し、減衰器１８ａを介してパワ
ーメータ２０ａにその値を表示させる方向性結合
器２２ａと、マイクロ波伝送線路中をアプリケー
タ１０から発振器１４の方向へ伝送されるマイク
ロ波の反射波を測定し、減衰器１８ｂを介してパ
ワーメータ２０ｂにその値を表示させる方向性結
合器２２ｂとから成る。従つて、この一対のパワ
ーメータ２０ａ，２０ｂの表示値の差から人体内
部に入射されたマイクロ波の実効入力が算出され
る。そして、この測定値はマイクロ波発振器１４
に入力されている。 In the figure, 10 is a human body 12 as a heated body.
Microwave energy is transmitted to this applicator 10 from a microwave oscillator 14 via a microwave transmission line such as a coaxial cable or a waveguide. This applicator 10 is sufficiently matched at the connection part with the microwave transmission line so that the transmitted microwave energy is not reflected, and is also suitable for the human body 12 to which the microwave is irradiated. , sufficient matching is made to suppress as much as possible the reflection of microwaves on the human body surface. However, reflection at the surface of the human body and the connection with the microwave transmission line cannot be completely suppressed. Therefore, among the microwave energy transmitted from the microwave oscillator 14 to the applicator 10, in order to measure the effective input that actually enters the human body 10 and is useful for warming the affected area, the microwave oscillator 14 and An incident energy measuring device 16 is provided on the microwave transmission line connecting the applicator 10. This measuring device 16 measures the traveling wave of the microwave transmitted from the oscillator 14 to the applicator 10 in the microwave transmission line, and displays the value on the power meter 20a via the attenuator 18a. 22a, and a directional coupler that measures the reflected wave of the microwave transmitted from the applicator 10 to the oscillator 14 through the microwave transmission line and displays the value on the power meter 20b via the attenuator 18b. 22b. Therefore, the effective input of the microwave incident into the human body is calculated from the difference between the display values of the pair of power meters 20a and 20b. Then, this measured value is determined by the microwave oscillator 14.
has been entered.
２４はその要部が例えばサーミスタ等で形成さ
れ、針形状をした温度センサであり、マイクロ波
によつて加温される人体患部に刺入され、その患
部の加温温度を測定し、その値をマイクロ波発振
器１４に入力する。 Reference numeral 24 is a needle-shaped temperature sensor whose main part is formed of a thermistor, etc., and is inserted into an affected part of the human body heated by microwaves, measures the heating temperature of the affected part, and calculates the value. is input to the microwave oscillator 14.
次にその作用につき説明する。 Next, its effect will be explained.
まず加温治療を行う人体１２の患部に温度セン
サ２４を刺入する。そして、マイクロ波発振器１
４を作動させ、アプリケータ１０から人体１２の
患部に向けマイクロ波を照射すると、患部はマイ
クロ波によつて誘電加熱され、徐々に加温されて
いく。ここにおいて、癌等の治療に際しては、前
述した如く、患部を42〜45℃の範囲で加温し続け
るのが望ましい。患部の加温温度は温度センサ２
４により検出され、マイクロ波発振器１４に入力
され、マイクロ波発振器１４は患部の温度が低い
場合には、その出力を増し患部温度を上昇させ、
患部の温度が高いときには、その出力を減じ患部
温度を低下させる。このようにして、患部の温度
は常に42〜45℃の範囲にあるよう調整される。 First, the temperature sensor 24 is inserted into the affected part of the human body 12 where heating treatment is to be performed. And microwave oscillator 1
4 is activated and microwaves are irradiated from the applicator 10 to the affected area of the human body 12, the affected area is dielectrically heated by the microwaves and gradually warmed up. Here, when treating cancer or the like, it is desirable to continue heating the affected area within the range of 42 to 45°C, as described above. Temperature sensor 2 measures the heating temperature of the affected area.
4 is detected and input to the microwave oscillator 14, and when the temperature of the affected area is low, the microwave oscillator 14 increases its output to raise the temperature of the affected area,
When the temperature of the affected area is high, the output is reduced to lower the temperature of the affected area. In this way, the temperature of the affected area is always regulated to be within the range of 42-45°C.
また前述したように、入射エネルギ測定器１６
の一対のパワーメータ２０ａ，２０ｂの表示から
実際に患部に入射されたマイクロ波エネルギの実
効入力が測定される。 Further, as described above, the incident energy measuring device 16
From the displays on the pair of power meters 20a and 20b, the effective input of microwave energy actually incident on the affected area is measured.
なお上記実施例においては、温度センサ２４を
人体１２の患部温度の測定装置として用いた場合
を説明した。しかし、本発明はこれに限らず、入
射エネルギ測定器１６を患部温度の測定装置とし
て用いることもできる。すなわち、予め人体１２
に入射されるマイクロ波エネルギの実効入力とそ
の温度上昇との関係を測定し、これをマイクロ波
発振器１４の出力制御を行うコンピユータ等にデ
ータとしてプリセツトしておく。入射エネルギ測
定器１６の検出結果を演算処理してマイクロ波発
振器１４の出力を制御することにより、患部温度
を常に42〜45℃の範囲内に調整することができ
る。 In the above embodiment, a case has been described in which the temperature sensor 24 is used as a device for measuring the temperature of the affected part of the human body 12. However, the present invention is not limited to this, and the incident energy measuring device 16 can also be used as a device for measuring the temperature of the affected area. That is, the human body 12
The relationship between the effective input of microwave energy and its temperature rise is measured, and this is preset as data in a computer or the like that controls the output of the microwave oscillator 14. By arithmetic processing the detection results of the incident energy measuring device 16 and controlling the output of the microwave oscillator 14, the temperature of the affected area can be constantly adjusted within the range of 42 to 45°C.
以上のように、本発明によれば、マイクロ波を
用いて被加温体を誘電加熱するに際し、入射エネ
ルギ測定器と温度センサとの両者を同時に又はい
ずれかを選択して用いながら被加温体の温度を検
出することにより、加温温度を一定範囲に調整す
る必要のある癌などの悪性腫瘍の加温治療を極め
て効果的に行うことが可能となる。 As described above, according to the present invention, when the object to be heated is dielectrically heated using microwaves, the object to be heated is heated while using both the incident energy measuring device and the temperature sensor at the same time or selecting one of them. By detecting body temperature, it becomes possible to extremely effectively perform heating treatment for malignant tumors such as cancer, which requires adjusting the heating temperature within a certain range.
また、血管、骨などの存在によつて温度センサ
の刺入が困難な部位に対して加温治療を行う場合
にも、入射エネルギ測定器により被加温温度を検
出することができ、種々の部位に存在する患部の
加温治療を良好に行うことができる。 In addition, even when performing heating treatment on areas where it is difficult to insert a temperature sensor due to the presence of blood vessels, bones, etc., the temperature to be heated can be detected by the incident energy measuring device, and various methods can be used. It is possible to successfully perform heating treatment on the affected area.
図は本発明のマイクロ波加温治療装置の好適な
実施例を示すブロツク図である。
１０……アプリケータ、１２……被加温体、１
４……マイクロ波発振器、１６……入射エネルギ
測定器、２４……温度センサ。
The figure is a block diagram showing a preferred embodiment of the microwave heating treatment device of the present invention. 10... Applicator, 12... Heated object, 1
4... Microwave oscillator, 16... Incident energy measuring device, 24... Temperature sensor.
Claims (1)
度に基づいてマイクロ波発振器の出力を制御し、
マイクロ波発振器から伝送されるマイクロ波エネ
ルギをアプリケータを介して被加温体に向け放射
することにより被加温体を誘電加熱するマイクロ
波加温治療装置において、上記測定装置として、
マイクロ波発振器からアプリケータに伝送される
マイクロ波エネルギの進行波と反射波とを方向性
結合器により分離測定し被加温体に入射されるマ
イクロ波エネルギの実効入力を測定する入射エネ
ルギ測定器と、被加温体の加温部位に刺入され加
温部位の温度測定を行う温度センサと、を用いた
ことを特徴とするマイクロ波加温治療装置。1. Controlling the output of the microwave oscillator based on the heating temperature of the object to be heated measured by the measuring device,
In a microwave heating treatment device that dielectrically heats a body to be heated by radiating microwave energy transmitted from a microwave oscillator toward the body through an applicator, the measurement device includes:
An incident energy measuring device that separates and measures the traveling wave and reflected wave of microwave energy transmitted from a microwave oscillator to an applicator using a directional coupler, and measures the effective input of microwave energy incident on the heated object. and a temperature sensor inserted into a heated region of a heated body to measure the temperature of the heated region.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1015582A JPS58127661A (en) | 1982-01-27 | 1982-01-27 | Microwave heating and treating apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1015582A JPS58127661A (en) | 1982-01-27 | 1982-01-27 | Microwave heating and treating apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58127661A JPS58127661A (en) | 1983-07-29 |
| JPS628188B2 true JPS628188B2 (en) | 1987-02-21 |
Family
ID=11742380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1015582A Granted JPS58127661A (en) | 1982-01-27 | 1982-01-27 | Microwave heating and treating apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58127661A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59129070A (en) * | 1983-01-10 | 1984-07-25 | 呉羽化学工業株式会社 | Method and apparatus for controlling temperature distribution in living body |
| JPS60190971A (en) * | 1984-03-04 | 1985-09-28 | 菊地 眞 | Heating apparatus for hyperthermia |
| JPS6131174A (en) * | 1984-07-24 | 1986-02-13 | 菊地 眞 | Warming apparatus for hyperthermia |
| JPS6133673A (en) * | 1985-03-31 | 1986-02-17 | 菊地 真 | Heating apparatus for hyperthermia |
| JPS6133672A (en) * | 1985-03-31 | 1986-02-17 | 菊地 真 | Heating apparatus for hyperthermia |
| JPS622972A (en) * | 1985-06-29 | 1987-01-08 | 菊地 眞 | Warming apparatus for hyperthermia |
| JPS625364A (en) * | 1985-06-30 | 1987-01-12 | 菊地 真 | Warming apparatus for hyperthermia |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4190053A (en) * | 1977-06-20 | 1980-02-26 | Rca Corporation | Apparatus and method for hyperthermia treatment |
-
1982
- 1982-01-27 JP JP1015582A patent/JPS58127661A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58127661A (en) | 1983-07-29 |
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