DE69737511D1 - Magnetfeld-erzeuger für die bildgebende magnetische resonanz - Google Patents

Magnetfeld-erzeuger für die bildgebende magnetische resonanz

Info

Publication number: DE69737511D1
Authority: DE; Germany
Prior art keywords: field generator; imaging; magnetic field; magnetic resonance; magnetic
Prior art date: 1997-12-26
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

DE69737511T

Other languages

English (en)

Other versions

DE69737511T2 (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

GE Medical Systems Global Technology Co LLC

Original Assignee

Neomax Co Ltd

GE Medical Systems Global Technology Co LLC

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.)

1997-12-26

Filing date

1997-12-26

Publication date

2007-05-03

1997-12-26 Application filed by Neomax Co Ltd, GE Medical Systems Global Technology Co LLC filed Critical Neomax Co Ltd

2007-05-03 Application granted granted Critical

2007-05-03 Publication of DE69737511D1 publication Critical patent/DE69737511D1/de

2007-07-26 Publication of DE69737511T2 publication Critical patent/DE69737511T2/de

2017-12-27 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Classifications

- 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)
Condensed Matter Physics & Semiconductors (AREA)
General Physics & Mathematics (AREA)
Magnetic Resonance Imaging Apparatus (AREA)

DE69737511T 1997-12-26 1997-12-26 Magnetfeld-Erzeuger für die Bildgebende Magnetische Resonanz Expired - Lifetime DE69737511T2 (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
PCT/JP1997/004867 WO1999033397A1 (fr)	1996-08-26	1997-12-26	Generateur de champ magnetique pour irm

Publications (2)

Publication Number	Publication Date
DE69737511D1 true DE69737511D1 (de)	2007-05-03
DE69737511T2 DE69737511T2 (de)	2007-07-26

Family

ID=14181757

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE69737511T Expired - Lifetime DE69737511T2 (de)	1997-12-26	1997-12-26	Magnetfeld-Erzeuger für die Bildgebende Magnetische Resonanz

Country Status (5)

Country	Link
US (1)	US6275128B1 (de)
EP (1)	EP0965305B1 (de)
KR (1)	KR100373577B1 (de)
DE (1)	DE69737511T2 (de)
WO (1)	WO1999033397A1 (de)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP2001078982A (ja) *	1999-09-16	2001-03-27	Hitachi Medical Corp	開放型磁石装置
US6448772B1 (en)	2000-10-06	2002-09-10	Sumitomo Special Metals Co., Ltd.	Magnetic field adjusting apparatus, magnetic field adjusting method and recording medium
US6662434B2 (en) *	2001-04-03	2003-12-16	General Electric Company	Method and apparatus for magnetizing a permanent magnet
US6518867B2 (en)	2001-04-03	2003-02-11	General Electric Company	Permanent magnet assembly and method of making thereof
JP3878434B2 (ja) *	2001-05-10	2007-02-07	ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー	磁気共鳴撮像用コイル構造体および磁気共鳴撮像装置
US6809519B2 (en) *	2001-07-12	2004-10-26	Shin-Etsu Chemical Co., Ltd.	Inclined magnetic field generation coil and magnetic field generator for MRI
DE10147984B4 (de) *	2001-09-28	2007-10-11	Siemens Ag	Magnetresonanz-Untersuchungsgerät mit einer Einrichtung zur Erzeugung eines homogenen Magnetfeldes und Verfahren zur Verbesserung der Homogenität eines Magnetfeldes
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
US6984982B2 (en) *	2002-07-29	2006-01-10	Ge Medical Systems Global Technology Company Llc	Method and system for shimming an MRI magnet assembly
US7081752B2 (en) *	2003-04-04	2006-07-25	General Electric Company	System and method of electrically loading radio-frequency coils using conductive polymers
US7423431B2 (en) *	2003-09-29	2008-09-09	General Electric Company	Multiple ring polefaceless permanent magnet and method of making
US7148689B2 (en) *	2003-09-29	2006-12-12	General Electric Company	Permanent magnet assembly with movable permanent body for main magnetic field adjustable
WO2005037101A1 (ja) *	2003-10-15	2005-04-28	Hitachi Medical Corporation	磁気共鳴イメージング装置
JP2005168692A (ja)	2003-12-10	2005-06-30	Shin Etsu Chem Co Ltd	永久磁石対向型磁気回路およびその磁場を調整する方法
ITSV20040020A1 (it) *	2004-05-07	2004-08-07	Esaote Spa	Struttura magnetica per macchine mri e macchina mri
US7019609B2 (en) *	2004-06-21	2006-03-28	General Electric Company	Magnetic field generating device and method of shimming thereof
JP3733441B1 (ja) *	2004-07-02	2006-01-11	株式会社日立製作所	磁気共鳴撮像装置及びその磁石装置
US7295012B1 (en)	2006-04-28	2007-11-13	General Electric Company	Methods and apparatus for MRI shim elements
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
US7924010B2 (en) *	2009-03-25	2011-04-12	General Electric Company	Apparatus for supporting and method for forming a support for a magnetic resonance imaging (MRI) magnet
IT1397713B1 (it)	2010-01-22	2013-01-24	Esaote Spa	Macchina per risonanza magnetica nucleare con mezzi per la correzione dell'omogeneità del campo magnetico.
CA2884097C (en)	2014-03-13	2020-04-21	LT Imaging Inc.	Magnetic resonance imaging (mri) system and method
WO2016037101A1 (en)	2014-09-05	2016-03-10	Hyperfine Research, Inc.	Thermal management methods and apparatus
GB2616784A (en) *	2020-12-11	2023-09-20	Nanalysis Corp	Pole piece

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS62295405A (ja)	1986-02-17	1987-12-22	Sanyo Electric Co Ltd	磁気共鳴撮像装置
JPH01164356A (ja) *	1987-12-22	1989-06-28	Asahi Chem Ind Co Ltd	均一磁界の発生装置
JPH03131234A (ja)	1989-07-07	1991-06-04	Sumitomo Special Metals Co Ltd	Ｍｒｉ用磁界発生装置
US5061897A (en) *	1990-03-23	1991-10-29	Fonar Corporation	Eddy current control in magnetic resonance imaging
JPH0454938A (ja) *	1990-06-22	1992-02-21	Siemens Asahi Medeitetsuku Kk	磁界発生装置
US5317298A (en) *	1993-01-04	1994-05-31	General Electric Company	Apparatus and method for passive shimming of a superconducting magnet which images human limbs
US5304934A (en) *	1993-01-04	1994-04-19	General Electric Company	Superconducting magnet for imaging human limbs
GB2276946B (en) *	1993-04-08	1997-04-02	Oxford Magnet Tech	Improvements in or relating to MRI magnets
FI105293B (fi) *	1993-06-08	2000-07-14	Picker Nordstar Oy	Magneettikuvaukseen käytettävän magneetin napakenkä
FI933834A (fi) *	1993-09-01	1995-03-02	Picker Nordstar Oy	Magneettikuvauslaitteen napakenkä
US5635839A (en) *	1994-11-04	1997-06-03	Picker International, Inc.	High order passive shimming assembly for MRI magnets
JP3151129B2 (ja) *	1995-08-28	2001-04-03	信越化学工業株式会社	磁石対向型永久磁石磁気回路とその磁場調整方法
JP3014319B2 (ja) *	1996-04-12	2000-02-28	信越化学工業株式会社	磁石対向型永久磁石回路
US5923235A (en) *	1998-10-23	1999-07-13	General Electric Company	Shim assembly for a pole face of a magnet

1997
- 1997-12-26 WO PCT/JP1997/004867 patent/WO1999033397A1/ja active IP Right Grant
- 1997-12-26 KR KR10-1999-7007817A patent/KR100373577B1/ko not_active IP Right Cessation
- 1997-12-26 EP EP97950417A patent/EP0965305B1/de not_active Expired - Lifetime
- 1997-12-26 US US09/380,129 patent/US6275128B1/en not_active Expired - Lifetime
- 1997-12-26 DE DE69737511T patent/DE69737511T2/de not_active Expired - Lifetime

Also Published As

Publication number	Publication date
DE69737511T2 (de)	2007-07-26
EP0965305A4 (de)	2005-11-09
KR20000075747A (ko)	2000-12-26
US6275128B1 (en)	2001-08-14
EP0965305B1 (de)	2007-03-21
WO1999033397A1 (fr)	1999-07-08
EP0965305A1 (de)	1999-12-22
KR100373577B1 (ko)	2003-02-26

Publication	Publication Date	Title
DE69933630D1 (de)	2006-11-30	Magnetfelderzeuger für die Magnetresonanzbildgebung
DE69737511D1 (de)	2007-05-03	Magnetfeld-erzeuger für die bildgebende magnetische resonanz
DE69935702D1 (de)	2007-05-16	Magnet für die bildgebende magnetische resonanz
DE69417155D1 (de)	1999-04-22	System für die bildgebende magnetische Resonanz
DE69931611D1 (de)	2006-07-06	Magnetresonanz bildgebungsvorrichtung
DE69929006D1 (de)	2006-01-26	Magnetfelderzeuger für die Magnetresonanzbildgebung und Verfahren zum Zusammenbau desselben
NO20003251D0 (no)	2000-06-22	Metode for magnetisk resonans avbildning
DE69526394D1 (de)	2002-05-23	Magnet für die Bilderzeugung mittels magnetischer Resonanz
DE69615180D1 (de)	2001-10-18	Sondenspule für die kernspinresonanz
DE69932477D1 (de)	2006-09-07	Magnetanordnung für die bildgebende Magnetresonanz mit nichtleitender innerer Wand
DE69931833D1 (de)	2006-07-27	Gerät für die magnetische Resonanz
NL1002067A1 (nl)	1996-07-15	Magnetisch afbeeldingsapparaat.
GB9828425D0 (en)	1999-02-17	Magnetic resonance imaging apparatus
IT1289752B1 (it)	1998-10-16	Generatore magnetico
FI982381A0 (fi)	1998-11-03	Diagnostiikalla varustettu magneettinen virtausmittari
DE69528134D1 (de)	2002-10-17	Apparat für die magnetische Resonanz
DE69817252D1 (de)	2003-09-25	Supraleitende Spule
DE69637598D1 (de)	2008-08-21	MRI-Gerät
DE69832950D1 (de)	2006-02-02	Endoskopische RF-Spulen für die Magnetresonanzbildgebung
DE60045731D1 (de)	2011-04-28	Kopfspule für die bilderzeugende magnetische Resonanz
DE69925193D1 (de)	2005-06-16	Mehrfrequenz-Magnetresonanzbildgebung
DE69708345D1 (de)	2002-01-03	Verbesserungen an Magneten für die bildgebende magnetische Resonanz
DE69407848D1 (de)	1998-02-19	Magnetanordnung für die Bilderzeugung mittels magnetischer Resonanz
DE69936690D1 (de)	2007-09-13	Gerät für die bildgebende magnetische Resonanz
DE69513589D1 (de)	2000-01-05	Magnetischer Toner, Abbilddungsverfahren

Legal Events

Date	Code	Title	Description
2008-04-10	8364	No opposition during term of opposition