JPS6115906Y2 - - Google Patents
Info
- Publication number
- JPS6115906Y2 JPS6115906Y2 JP18863781U JP18863781U JPS6115906Y2 JP S6115906 Y2 JPS6115906 Y2 JP S6115906Y2 JP 18863781 U JP18863781 U JP 18863781U JP 18863781 U JP18863781 U JP 18863781U JP S6115906 Y2 JPS6115906 Y2 JP S6115906Y2
- Authority
- JP
- Japan
- Prior art keywords
- heating
- outer conductor
- microwaves
- range
- microwave
- 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
- 238000010438 heat treatment Methods 0.000 claims description 12
- 239000004020 conductor Substances 0.000 claims description 11
- 238000011282 treatment Methods 0.000 claims description 4
- 230000006698 induction Effects 0.000 claims description 2
- 230000005284 excitation Effects 0.000 description 4
- 201000011510 cancer Diseases 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 206010028980 Neoplasm Diseases 0.000 description 2
- 238000002560 therapeutic procedure Methods 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Landscapes
- Thermotherapy And Cooling Therapy Devices (AREA)
- Radiation-Therapy Devices (AREA)
Description
【考案の詳細な説明】
本考案は加温治療用マイクロ波放射器、特に生
体内部の温度をマイクロ波による誘電損失を利用
して上昇させるマイクロ波放射器の改良に関す
る。[Detailed Description of the Invention] The present invention relates to a microwave radiator for heating therapy, and particularly to an improvement of a microwave radiator that increases the temperature inside a living body by utilizing dielectric loss caused by microwaves.
癌等の悪性腫瘍は43〜45℃で一定時間加温する
と癌細胞が死亡したり、他の併設されている治療
を効果的にすることができる。 When malignant tumors such as cancer are heated at 43 to 45°C for a certain period of time, cancer cells can die and other treatments can be made 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放射器が提案され、このマイ
クロ波放射器は、生体内部の患部に向けてマイク
ロ波を放射し、生体内に引き起こされる誘電損失
を利用して患部を加温するものである。 For this reason, a microwave radiator has been proposed as a device to heat the affected area inside the living body.This microwave radiator emits microwaves towards the affected area inside the living body, making use of the dielectric loss caused in the living body. This warms the affected area.
しかしながら、従来の放射器では、生体内の誘
電加熱される範囲が狭く、治療対象が制限される
という欠点があり、広範囲の加温に適する放射器
が望まれていた。 However, conventional radiators have the disadvantage that the range that is dielectrically heated within a living body is narrow, which limits the therapeutic targets, and a radiator that is suitable for heating a wide range has been desired.
本考案は上記従来の課題に鑑みなされたもの
で、その目的は加温範囲を拡大できる構造の簡単
な改良された加温治療用マイクロ波放射器を提供
することにある。 The present invention was devised in view of the above-mentioned conventional problems, and its purpose is to provide an improved microwave radiator for heating therapy with a simple structure that can expand the heating range.
上記目的を達成するため、本考案は被加温体に
向けてマイクロ波を放射する同軸線路アンテナの
外部導体に周方向に複数のスリツトを設け、多段
同軸ダイポール型アンテナとし、マイクロ波によ
り誘導加熱される範囲を拡大したことを特徴とす
る。 In order to achieve the above object, the present invention provides a multi-stage coaxial dipole antenna by providing multiple slits in the circumferential direction on the outer conductor of a coaxial line antenna that radiates microwaves toward the heated object, and heating the object by induction using microwaves. It is characterized by an expanded range of information.
以下図面に基づいて本考案の好適な実施例を説
明する。 Preferred embodiments of the present invention will be described below based on the drawings.
第１図には、本考案の原理図が示され、中心導
体１０と外部導体１２とから成る同軸線路１４の
前記外部導体１２に周方向にスリツト１６を設
け、その周囲に筒型のダイポールアンテナ１８を
接続することにより、励振波源の数を増加するこ
とができ、この複数の励振波源によつて放射マイ
クロ波による誘電加熱範囲を増大することが可能
となる。 FIG. 1 shows a principle diagram of the present invention, in which a slit 16 is provided in the circumferential direction in the outer conductor 12 of a coaxial line 14 consisting of a center conductor 10 and an outer conductor 12, and a cylindrical dipole antenna is formed around the slit 16. By connecting 18, the number of excitation wave sources can be increased, and the dielectric heating range by the radiated microwave can be increased by the plurality of excitation wave sources.
第２図には、本考案の好適な実施例が示されて
おり、同軸線路１４の中心導体１０と外部導体１
２との間は誘電体２０にて絶縁隔離されており、
また外部導体１２の周囲は同軸外皮２２およびシ
リコンチユーブ２４にて被覆されている。そして
外部導体１２に周方向に複数のスリツト１６が設
けられており、本実施例では、同軸線路１４の外
径を小さくするために、第１図の原理図における
ダイポールアンテナ１８は設けることなく、前記
スリツト１６を設けただけで、全体として多段同
軸ダイポール型アンテナを形成している。 FIG. 2 shows a preferred embodiment of the present invention, in which a center conductor 10 and an outer conductor 1 of a coaxial line 14 are shown.
2 is insulated and isolated by a dielectric 20,
Further, the outer conductor 12 is covered with a coaxial outer sheath 22 and a silicon tube 24. A plurality of slits 16 are provided in the outer conductor 12 in the circumferential direction, and in this embodiment, in order to reduce the outer diameter of the coaxial line 14, the dipole antenna 18 in the principle diagram of FIG. 1 is not provided. By simply providing the slit 16, a multistage coaxial dipole antenna is formed as a whole.
以上の結果、本実施例において、マイクロ波ア
ンテナは複数の励振線源を有することになり、こ
の電波分布は第１図で示したように、多段アンテ
ナに沿つて複数の放射パターンを呈し、生体内の
誘電加温される範囲を拡大することが可能とな
る。 As a result of the above, in this example, the microwave antenna has a plurality of excitation sources, and the radio wave distribution exhibits a plurality of radiation patterns along the multi-stage antenna, as shown in Fig. It becomes possible to expand the range of dielectric heating inside the body.
実験によれば、マイクロ波の励振周波数を
2450MHzとしたとき、第２図の各スリツト間隙
L1，L2，L3をそれぞれほぼ1/4λ，1.5λ，1.4λ
とし、またスリツト総長L4を3.2λとすることに
より、極めて好適な加温特性を得ることができ
た。 According to experiments, the excitation frequency of microwaves is
When set to 2450MHz, each slit gap in Figure 2
L 1 , L 2 , and L 3 are approximately 1/4λ, 1.5λ, and 1.4λ, respectively.
In addition, by setting the slit length L4 to 3.2λ, extremely suitable heating characteristics could be obtained.
以上説明したように、本考案によれば、簡単な
構造で生体加温に有用な加温範囲の広いマイクロ
波加温器を提供することが可能となり、マイクロ
波加温治療を極めて効果的に行うことが可能とな
る。 As explained above, according to the present invention, it is possible to provide a microwave warmer with a simple structure and a wide heating range that is useful for warming living organisms, making microwave heating treatment extremely effective. It becomes possible to do so.
第１図は本考案の原理図、第２図は本考案に係
る加温治療用マイクロ波放射器の好適な実施例を
示す断面図である。
１０…中心導体、１２…外部導体、１４…同軸
線路、１６…スリツト。
FIG. 1 is a diagram showing the principle of the present invention, and FIG. 2 is a sectional view showing a preferred embodiment of the microwave radiator for heating treatment according to the present invention. 10...Center conductor, 12...Outer conductor, 14...Coaxial line, 16...Slit.
Claims (1)
路アンテナの外部導体に周方向に複数のスリツト
を設け、多段同軸ダイポール型アンテナとし、マ
イクロ波により誘導加熱される範囲を拡大したこ
とを特徴とする加温治療用マイクロ波放射器。 The outer conductor of the coaxial line antenna that radiates microwaves toward the object to be heated is provided with multiple slits in the circumferential direction to create a multistage coaxial dipole antenna, expanding the range that is induction heated by microwaves. A microwave radiator for heating treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18863781U JPS5892954U (en) | 1981-12-19 | 1981-12-19 | Microwave radiator for heating therapy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18863781U JPS5892954U (en) | 1981-12-19 | 1981-12-19 | Microwave radiator for heating therapy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5892954U JPS5892954U (en) | 1983-06-23 |
| JPS6115906Y2 true JPS6115906Y2 (en) | 1986-05-16 |
Family
ID=29992361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18863781U Granted JPS5892954U (en) | 1981-12-19 | 1981-12-19 | Microwave radiator for heating therapy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5892954U (en) |
-
1981
- 1981-12-19 JP JP18863781U patent/JPS5892954U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5892954U (en) | 1983-06-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4583556A (en) | Microwave applicator/receiver apparatus | |
| US4841988A (en) | Microwave hyperthermia probe | |
| US5364336A (en) | Therapeutic probe for radiating microwave and ionizing radiation | |
| US4632128A (en) | Antenna apparatus for scanning hyperthermia | |
| US4700716A (en) | Collinear antenna array applicator | |
| JP3520120B2 (en) | Microwave tissue heating antennas and sondes containing these antennas | |
| US4305115A (en) | Electrostatic shield | |
| US5097845A (en) | Microwave hyperthermia probe | |
| US3691338A (en) | Solid state microwave heating apparatus | |
| JPS6115906Y2 (en) | ||
| CN111012483B (en) | Microwave ablation antenna based on spiral gap structure | |
| Gu et al. | A 2 1/4-turn spiral antenna for catheter cardiac ablation | |
| JPS6133961Y2 (en) | ||
| Pchelnikov et al. | Medical application of surface electromagnetic waves | |
| Singh | Microwave applicators for hyperthermia treatment of cancer: An overview | |
| JPH0311012Y2 (en) | ||
| Lim et al. | Modified rectangular patch antenna for improving heating uniformity in hyperthermia application | |
| JPS5931030Y2 (en) | High frequency heating device | |
| JPH0614760Y2 (en) | Microwave radiator for hyperthermia | |
| Ghasemlouy | Design of an Optimized Helical Antenna for Intra Cavity Hyperthermia Applications | |
| JP3354998B2 (en) | Far infrared radiation tubular heating element | |
| JPH02134170A (en) | Microwave radiator for warming treatment | |
| JPS629351B2 (en) | ||
| Rolfsnes et al. | Design of spiral antennas for radiometric temperature measurement | |
| JPH0317884Y2 (en) |