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DE69933630D1 - Magnetfelderzeuger für die Magnetresonanzbildgebung - Google Patents

Magnetfelderzeuger für die Magnetresonanzbildgebung

Info

Publication number
DE69933630D1
DE69933630D1 DE69933630T DE69933630T DE69933630D1 DE 69933630 D1 DE69933630 D1 DE 69933630D1 DE 69933630 T DE69933630 T DE 69933630T DE 69933630 T DE69933630 T DE 69933630T DE 69933630 D1 DE69933630 D1 DE 69933630D1
Authority
DE
Germany
Prior art keywords
resonance imaging
field generator
magnetic
magnetic field
magnetic resonance
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 - Lifetime
Application number
DE69933630T
Other languages
English (en)
Other versions
DE69933630T2 (de
Inventor
Masaaki Aoki
Shigeo Hashimoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Proterial Ltd
Original Assignee
Neomax Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Neomax Co Ltd filed Critical Neomax Co Ltd
Application granted granted Critical
Publication of DE69933630D1 publication Critical patent/DE69933630D1/de
Publication of DE69933630T2 publication Critical patent/DE69933630T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
    • A61B5/055—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
    • G01R33/383—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using permanent magnets
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
    • G01R33/387—Compensation of inhomogeneities
    • G01R33/3873—Compensation of inhomogeneities using ferromagnetic bodies ; Passive shimming

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Radiology & Medical Imaging (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
DE69933630T 1998-09-02 1999-08-30 Magnetfelderzeuger für die Magnetresonanzbildgebung Expired - Lifetime DE69933630T2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP26575498 1998-09-02
JP26575498 1998-09-02
JP11213414A JP2000139874A (ja) 1998-09-02 1999-07-28 Ｍｒｉ用磁界発生装置
JP21341499 1999-07-28

Publications (2)

Publication Number Publication Date
DE69933630D1 true DE69933630D1 (de) 2006-11-30
DE69933630T2 DE69933630T2 (de) 2007-08-23

Family

ID=26519791

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69933630T Expired - Lifetime DE69933630T2 (de) 1998-09-02 1999-08-30 Magnetfelderzeuger für die Magnetresonanzbildgebung

Country Status (6)

Country Link
US (1) US6340888B1 (de)
EP (1) EP0987558B1 (de)
JP (1) JP2000139874A (de)
KR (1) KR100731412B1 (de)
CN (1) CN1243513C (de)
DE (1) DE69933630T2 (de)

Families Citing this family (46)

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EP1069575B1 (de) * 1999-07-15 2008-05-14 Neomax Co., Ltd. Verfahren zum Abbau eines Magnetfeldgenerators
WO2001074243A1 (fr) * 2000-04-03 2001-10-11 Hitachi Medical Corporation Aimant supraconducteur et appareil d'imagerie par resonance magnetique qui comprend ledit aimant
JP3788573B2 (ja) * 2000-11-16 2006-06-21 信越化学工業株式会社 Ｍｒｉ用磁気回路の組立方法
JP4617596B2 (ja) * 2001-04-24 2011-01-26 日立金属株式会社 Ｍｒｉ用磁界発生装置およびそれを用いたｍｒｉ装置
JP4330447B2 (ja) * 2001-12-20 2009-09-16 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 開放型ｍｒ装置におけるノイズ抑制
US6504372B1 (en) * 2001-12-24 2003-01-07 General Electric Company High field open magnetic resonance magnet with reduced vibration
US20040210289A1 (en) * 2002-03-04 2004-10-21 Xingwu Wang Novel nanomagnetic particles
US7162302B2 (en) * 2002-03-04 2007-01-09 Nanoset Llc Magnetically shielded assembly
US7091412B2 (en) * 2002-03-04 2006-08-15 Nanoset, Llc Magnetically shielded assembly
JP4007839B2 (ja) * 2002-04-03 2007-11-14 株式会社日立メディコ 開放型ｍｒｉ装置
US6828891B2 (en) 2002-07-25 2004-12-07 Ge Medical Systems Global Technology Company, Llc Method for assembling magnetic members for magnetic resonance imaging magnetic field generator
US6664878B1 (en) 2002-07-26 2003-12-16 Ge Medical Systems Global Technology Company, Llc Method for assembling magnetic members for magnetic resonance imaging magnetic field generator
US7215231B1 (en) * 2002-08-16 2007-05-08 Fonar Corporation MRI system
JP2004159984A (ja) * 2002-11-14 2004-06-10 Ge Medical Systems Global Technology Co Llc 静磁場形成装置および磁気共鳴撮像装置
US20040113622A1 (en) * 2002-12-13 2004-06-17 Huageng Luo Active damping for open MRI image stabilization
US6825666B2 (en) 2002-12-23 2004-11-30 General Electric Company Pole face for permanent magnet MRI with laminated structure
US20050149002A1 (en) * 2003-04-08 2005-07-07 Xingwu Wang Markers for visualizing interventional medical devices
US20050079132A1 (en) * 2003-04-08 2005-04-14 Xingwu Wang Medical device with low magnetic susceptibility
US20050025797A1 (en) * 2003-04-08 2005-02-03 Xingwu Wang Medical device with low magnetic susceptibility
US20060102871A1 (en) * 2003-04-08 2006-05-18 Xingwu Wang Novel composition
US20070010702A1 (en) * 2003-04-08 2007-01-11 Xingwu Wang Medical device with low magnetic susceptibility
US20040254419A1 (en) * 2003-04-08 2004-12-16 Xingwu Wang Therapeutic assembly
US20050155779A1 (en) * 2003-04-08 2005-07-21 Xingwu Wang Coated substrate assembly
US20050119725A1 (en) * 2003-04-08 2005-06-02 Xingwu Wang Energetically controlled delivery of biologically active material from an implanted medical device
US20050149169A1 (en) * 2003-04-08 2005-07-07 Xingwu Wang Implantable medical device
US20070149496A1 (en) * 2003-10-31 2007-06-28 Jack Tuszynski Water-soluble compound
US20050249667A1 (en) * 2004-03-24 2005-11-10 Tuszynski Jack A Process for treating a biological organism
ITSV20040016A1 (it) 2004-04-13 2004-07-13 Esaote Spa Macchina per risonanza magnetico nucleare
JP3790971B2 (ja) 2004-06-23 2006-06-28 株式会社日立製作所 磁気共鳴イメージング装置
US7631411B2 (en) * 2004-06-28 2009-12-15 General Electric Company Method of manufacturing support structure for open MRI
US20060118758A1 (en) * 2004-09-15 2006-06-08 Xingwu Wang Material to enable magnetic resonance imaging of implantable medical devices
US7796002B2 (en) * 2004-09-30 2010-09-14 Hitachi Metals, Ltd. Magnetic field generator for MRI
CN100415162C (zh) * 2005-03-09 2008-09-03 Ge医疗系统环球技术有限公司 磁体系统和磁共振成像系统
US7400147B2 (en) * 2005-11-03 2008-07-15 Uri Rapoport Self-fastening cage surrounding a magnetic resonance device and methods thereof
US8077002B2 (en) * 2005-12-19 2011-12-13 Jianyu Lian Open MRI magnetic field generator
CN100581454C (zh) * 2006-07-14 2010-01-20 Ge医疗系统环球技术有限公司 磁场发生器和mri装置
CN101388271A (zh) * 2007-09-14 2009-03-18 Ge医疗系统环球技术有限公司 磁体系统和mri设备
CN101240036B (zh) 2008-02-26 2010-06-09 西北师范大学 一种微波辅助提取沙蒿多糖的方法
EP2316121A4 (de) 2008-06-24 2012-01-11 Alberta Health Services Magnetanordnung und verfahren zur bestimmung eines magnetfelds für ein bildgebungsvolumen
US10722140B2 (en) * 2014-07-03 2020-07-28 St. Jude Medical International Holding S.À R.L. Localized magnetic field generator
WO2016037101A1 (en) * 2014-09-05 2016-03-10 Hyperfine Research, Inc. Thermal management methods and apparatus
US10539637B2 (en) 2016-11-22 2020-01-21 Hyperfine Research, Inc. Portable magnetic resonance imaging methods and apparatus
JP2021524775A (ja) * 2018-05-21 2021-09-16 ハイパーファイン，インコーポレイテッド 磁気共鳴結像システム用のｂ０磁石の機器および方法
JP7045937B2 (ja) * 2018-06-14 2022-04-01 株式会社日立製作所 電磁石装置
CN109828239B (zh) * 2019-02-26 2021-08-24 广西兴霖矿业投资咨询有限公司 一种用于矿产勘探的具有防护功能的矿井地质雷达仪
EP4073531A1 (de) * 2019-12-10 2022-10-19 Hyperfine Operations, Inc. Ferromagnetischer rahmen für magnetresonanzbildgebung

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0161782B1 (de) * 1984-04-11 1988-11-09 Sumitomo Special Metal Co., Ltd. Eine ein Magnetfeld erzeugende Vorrichtung für NMR-CT
JPS61222208A (ja) 1985-03-28 1986-10-02 Agency Of Ind Science & Technol 電磁石装置
US4679022A (en) * 1985-12-27 1987-07-07 Sumitomo Special Metal Co. Ltd. Magnetic field generating device for NMR-CT
US4943774A (en) * 1989-06-01 1990-07-24 General Atomics Magnetic field control apparatus
JPH0339139A (ja) 1989-07-07 1991-02-20 Sanyo Electric Co Ltd 磁気共鳴撮像装置の静磁場発生装置
JPH03274710A (ja) 1990-03-24 1991-12-05 Seiko Epson Corp 磁界発生装置
GB9206014D0 (en) * 1992-03-19 1992-04-29 Oxford Instr Ltd Magnet assembly
JP3742662B2 (ja) 1992-08-05 2006-02-08 ゼネラル・エレクトリック・カンパニイ 開放形磁気共鳴イメージングに適した磁石
JP3123731B2 (ja) 1993-02-19 2001-01-15 株式会社日立メディコ 磁気共鳴イメージング装置の磁界発生装置
JP3171721B2 (ja) 1993-03-30 2001-06-04 株式会社日立メディコ 磁気共鳴イメージング装置の磁界発生装置
GB2276946B (en) 1993-04-08 1997-04-02 Oxford Magnet Tech Improvements in or relating to MRI magnets
US5495222A (en) * 1994-04-15 1996-02-27 New York University Open permanent magnet structure for generating highly uniform field
JP3113513B2 (ja) * 1994-07-29 2000-12-04 住友特殊金属株式会社 Ｍｒｉ用磁界発生装置
JP3016545B2 (ja) 1995-06-12 2000-03-06 信越化学工業株式会社 永久磁石磁気回路
WO1999033398A1 (fr) * 1996-11-19 1999-07-08 Sumitomo Special Metals Co., Ltd. Generateur de champ magnetique pour irm
KR100362042B1 (ko) * 1998-04-14 2002-11-22 스미토모 도큐슈 긴조쿠 가부시키가이샤 Ｍｒｉ용 자계 발생 장치
IT1305960B1 (it) * 1998-05-11 2001-05-21 Esaote Spa Struttura di magnete in particolare per macchine per il rilevamentod'immagine in risonanza magnetica nucleare.

Also Published As

Publication number Publication date
DE69933630T2 (de) 2007-08-23
KR100731412B1 (ko) 2007-06-21
EP0987558A2 (de) 2000-03-22
CN1243513C (zh) 2006-03-01
CN1246320A (zh) 2000-03-08
EP0987558B1 (de) 2006-10-18
EP0987558A3 (de) 2001-03-21
JP2000139874A (ja) 2000-05-23
KR20000022809A (ko) 2000-04-25
US6340888B1 (en) 2002-01-22

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