JP4559418B2 - マイクロ波治療のための照射アプリケータ - Google Patents
マイクロ波治療のための照射アプリケータ Download PDFInfo
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- JP4559418B2 JP4559418B2 JP2006516442A JP2006516442A JP4559418B2 JP 4559418 B2 JP4559418 B2 JP 4559418B2 JP 2006516442 A JP2006516442 A JP 2006516442A JP 2006516442 A JP2006516442 A JP 2006516442A JP 4559418 B2 JP4559418 B2 JP 4559418B2
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- 238000002560 therapeutic procedure Methods 0.000 title description 3
- 239000000463 material Substances 0.000 claims abstract description 19
- 238000005286 illumination Methods 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000005855 radiation Effects 0.000 abstract description 6
- 239000004020 conductor Substances 0.000 description 18
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000003989 dielectric material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 201000007270 liver cancer Diseases 0.000 description 1
- 208000014018 liver neoplasm Diseases 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000012285 ultrasound imaging Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
- A61B18/1815—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using microwaves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/02—Radiation therapy using microwaves
- A61N5/04—Radiators for near-field treatment
- A61N5/045—Radiators for near-field treatment specially adapted for treatment inside the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
- A61B18/1815—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using microwaves
- A61B2018/183—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using microwaves characterised by the type of antenna
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
- A61B18/1815—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using microwaves
- A61B2018/1861—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using microwaves with an instrument inserted into a body lumen or cavity, e.g. a catheter
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
- A61B18/1815—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using microwaves
- A61B2018/1869—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using microwaves with an instrument interstitially inserted into the body, e.g. needles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
- A61B18/1815—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using microwaves
- A61B2018/1892—Details of electrical isolations of the antenna
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Veterinary Medicine (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Electromagnetism (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Heart & Thoracic Surgery (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- Radiation-Therapy Devices (AREA)
- Surgical Instruments (AREA)
- Waveguide Aerials (AREA)
- Materials For Medical Uses (AREA)
- Aerials With Secondary Devices (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
Description
従って、誘電体からの照射は1つのセクションではより局所的になる。第2セクションからより大きいエネンルギーを照射するように設計されることが好ましい。
図面を参照して、実施例を使って本発明を説明する。
図1で示される照射アプリケータは同軸ケーブル1を有する。同ケーブルは剛体でもフレキシブルでもよく、一端は図示しないマイクロ波電源に接続され、他端は照射チップ2で終端している。同チップ2は3つのセクション3、4、5を持つ円筒形誘電体から構成されている。同セクションは軸上に並んで、セクションの間のインターフェース部で相互に接触し連続体を形成している。
1つの外部セクション3は同軸ケーブル1の端部に接続されている。セクション3の一端部の一部分6の直径が削られ、同軸ケーブルの外側導体7に短い長さ挿入され確実に接続されている。同軸ケーブルの中心部導体8は本体2の軸穴9を通して3つのセクションを介して延長し、外側の第3セクション5で終端している。組み立てにおいて、メタルワッシャー10はセクション4のインターフェース部でセクション3に溶接され、中心部導体8に溶接される。第2メタルワッシャー11は第3セクション5とのインターフェース部で中央セクション4に溶接され、中央部導体8に溶接される。ワッシャー10と11は中心部導体8を介して誘電体の2つのセクション3,4を同軸ケーブル1の端部に固定する。第3セクション5は第2ワッシャーと中心部導体8に接合される(bonded)。
Claims (6)
- 1端部における電力入力部と、
周辺物質の中に照射を行うためにその端部でその軸上に延びる細長いアンテナと、
前記アンテナに沿って相互に関係して軸上に設けられる、種々の誘電定数を持つ複数のセクションから構成されている誘電体とを有し、
照射リフレクタを誘電体の2つのセクション間のインターフェースに配置し、照射の伝送を変調し、照射伝播を変調しアプリケータをチューンすることを特徴とする照射アプリケータ。 - 前記誘電体が照射を行うように構成された第2セクションと、前記第2セクションと電極入力部と間に第1セクションとを有し、第1セクションの誘電率は第2セクションの誘電率より低いことを特徴とする請求項1記載の照射アプリケータ。
- 前記誘電体は電力入力部から遠い外側セクションを有し、その誘電率は、第2セクションの誘電率より低いことを特徴とする請求項2記載のアプリケータ。
- 前記外側セクションの誘電率は第1と第2セクションの誘電率の中間であることを特徴とする請求項3記載のアプリケータ。
- 複数セクションが別々の部材から構成され、端部-端部相互に接してアセンブルされることを特徴とする請求項1ないし4の何れか一記載のアプリケータ。
- 照射リフレクタが周辺物質に照射を行うように構成されたセクションの各側に設けられ、電力入力部から遠い側のリフレクタの面積は電力入力部に近い側のリフレクタの面積より広く、アプリケータのチップへの照射伝播を低減することを特徴とする請求項1乃至5のいずれか1項に記載のアプリケータ。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0314631A GB2403148C2 (en) | 2003-06-23 | 2003-06-23 | Radiation applicator |
PCT/GB2004/002620 WO2004112628A1 (en) | 2003-06-23 | 2004-06-18 | Radiation applicator for microwave medical treatment |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007520245A JP2007520245A (ja) | 2007-07-26 |
JP4559418B2 true JP4559418B2 (ja) | 2010-10-06 |
Family
ID=27637182
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006516442A Expired - Fee Related JP4559418B2 (ja) | 2003-06-23 | 2004-06-18 | マイクロ波治療のための照射アプリケータ |
Country Status (14)
Country | Link |
---|---|
US (4) | US20070043346A1 (ja) |
EP (1) | EP1646324B1 (ja) |
JP (1) | JP4559418B2 (ja) |
CN (1) | CN100558311C (ja) |
AT (1) | ATE464013T1 (ja) |
AU (1) | AU2004248967B2 (ja) |
CA (1) | CA2530154A1 (ja) |
DE (1) | DE602004026588D1 (ja) |
GB (3) | GB2403148C2 (ja) |
MX (1) | MXPA05014207A (ja) |
MY (1) | MY136363A (ja) |
TW (1) | TWI278301B (ja) |
WO (1) | WO2004112628A1 (ja) |
ZA (1) | ZA200600591B (ja) |
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GB2415630C2 (en) | 2004-07-02 | 2007-03-22 | Microsulis Ltd | Radiation applicator and method of radiating tissue |
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