DE3676066D1 - Einrichtung zur erzeugung von magnetfeldern fuer die magnetische kernresonanz-tomographie. - Google Patents

Einrichtung zur erzeugung von magnetfeldern fuer die magnetische kernresonanz-tomographie.

Info

Publication number
DE3676066D1
DE3676066D1 DE8686307272T DE3676066T DE3676066D1 DE 3676066 D1 DE3676066 D1 DE 3676066D1 DE 8686307272 T DE8686307272 T DE 8686307272T DE 3676066 T DE3676066 T DE 3676066T DE 3676066 D1 DE3676066 D1 DE 3676066D1
Authority
DE
Germany
Prior art keywords
resonance tomography
magnetic
nuclear resonance
generating
magnetic fields
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
DE8686307272T
Other languages
English (en)
Inventor
Toshinobu C O Yamazak Miyamoto
Hiroo C O Yamazaki Sei Hayashi
Hideya C O Yamazaki Se Sakurai
Hirofumi C O Yamaz Takabayashi
Youichi C O Yamazaki S Ohnishi
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.)
Neomax Co Ltd
Original Assignee
Sumitomo Special Metals 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
Priority claimed from JP20354985U external-priority patent/JPH0244485Y2/ja
Priority claimed from JP61099938A external-priority patent/JPS62256416A/ja
Application filed by Sumitomo Special Metals Co Ltd filed Critical Sumitomo Special Metals Co Ltd
Application granted granted Critical
Publication of DE3676066D1 publication Critical patent/DE3676066D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]
    • H01F7/0273—Magnetic circuits with PM for magnetic field generation
    • H01F7/0278—Magnetic circuits with PM for magnetic field generation for generating uniform fields, focusing, deflecting electrically charged particles
DE8686307272T 1985-12-27 1986-09-22 Einrichtung zur erzeugung von magnetfeldern fuer die magnetische kernresonanz-tomographie. Expired - Lifetime DE3676066D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP20354985U JPH0244485Y2 (de) 1985-12-27 1985-12-27
JP61099938A JPS62256416A (ja) 1986-04-30 1986-04-30 磁界発生装置

Publications (1)

Publication Number Publication Date
DE3676066D1 true DE3676066D1 (de) 1991-01-17

Family

ID=26441028

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686307272T Expired - Lifetime DE3676066D1 (de) 1985-12-27 1986-09-22 Einrichtung zur erzeugung von magnetfeldern fuer die magnetische kernresonanz-tomographie.

Country Status (3)

Country Link
US (1) US4679022A (de)
EP (1) EP0228154B1 (de)
DE (1) DE3676066D1 (de)

Families Citing this family (54)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5063934A (en) * 1987-10-07 1991-11-12 Advanced Techtronics, Inc. Permanent magnet arrangement
US4998976A (en) * 1987-10-07 1991-03-12 Uri Rapoport Permanent magnet arrangement
DE3737133A1 (de) * 1987-11-02 1989-05-11 Siemens Ag Homogenfeldmagnet mit profilierten polplatten
GB2215522B (en) * 1988-02-26 1990-11-28 Picker Int Ltd Magnet arrangements
US5080731A (en) * 1988-08-19 1992-01-14 Hitachi Metals, Ltd. Highly oriented permanent magnet and process for producing the same
US5097240A (en) * 1989-06-16 1992-03-17 Sumitomo Special Metal Co., Ltd. Magnetic field generating device for esr system
JPH03131234A (ja) * 1989-07-07 1991-06-04 Sumitomo Special Metals Co Ltd Ｍｒｉ用磁界発生装置
US5049848A (en) * 1989-11-28 1991-09-17 Pulyer Yuly M High field strength magnet, preferably having remote shimming of field
US5152711A (en) * 1990-05-23 1992-10-06 Louis Gross Magnetic toy having sculpturable particles
US5124651A (en) * 1990-10-24 1992-06-23 Fonar Corporation Nuclear magnetic resonance scanners with composite pole facings
US5117188A (en) * 1990-10-29 1992-05-26 General Atomics Quasi-open magnet configuration for use in magnetic resonance imaging
DE59108314D1 (de) * 1990-11-30 1996-12-05 Siemens Ag Homogenfeldmagnet mit mindestens einer mechanisch auszurichtenden Polplatte
JPH067316A (ja) * 1992-06-29 1994-01-18 Hitachi Medical Corp 磁気共鳴イメージング装置の磁界発生装置
IL106779A0 (en) * 1992-09-11 1993-12-08 Magna Lab Inc Permanent magnetic structure
US5754085A (en) * 1992-09-28 1998-05-19 Fonar Corporation Ferromagnetic yoke magnets for medical magnetic resonance studies
US6201394B1 (en) 1992-12-18 2001-03-13 Fonar Corporation MRI apparatus
US5389879A (en) * 1992-12-18 1995-02-14 Pulyer; Yuly M. MRI device having high field strength cylindrical magnet with two axially spaced electromagnets
US6335623B1 (en) 1992-12-18 2002-01-01 Fonar Corporation MRI apparatus
JP3266355B2 (ja) * 1993-02-05 2002-03-18 住友特殊金属株式会社 超電導型ｍｒｉ用磁界発生装置
JP2757104B2 (ja) * 1993-04-01 1998-05-25 信越化学工業株式会社 磁場発生装置
US5495222A (en) * 1994-04-15 1996-02-27 New York University Open permanent magnet structure for generating highly uniform field
DE69739151D1 (de) 1996-10-30 2009-01-15 Hitachi Medical Corp Offene supraleitende Magnetvorrichtung
NO305270B1 (no) * 1997-12-04 1999-04-26 Seas Fabrikker As Permanentmagnetmontasje
US7127802B1 (en) 1997-11-21 2006-10-31 Fonar Corporation Method of fabricating a composite plate
US6437571B1 (en) 1997-11-21 2002-08-20 Fonar Corporation MRI apparatus
JP2002502648A (ja) * 1998-02-09 2002-01-29 オーディン・メディカル・テクノロジーズ・リミテッド Ｍｒｉ又はｍｒｔプローブで使用するための開いた磁石及び開いた磁気装置を設計するための方法
US6265959B1 (en) * 1998-04-29 2001-07-24 New York University Open unipolar magnetic structure
JP2000139874A (ja) * 1998-09-02 2000-05-23 Sumitomo Special Metals Co Ltd Ｍｒｉ用磁界発生装置
USD428151S (en) * 1998-11-25 2000-07-11 Fonar Corporation Magnetic resonance imaging apparatus
KR100319923B1 (ko) 1999-05-10 2002-01-09 윤종용 자기공명영상장치용 자기장 발생 장치
EP1069575B1 (de) * 1999-07-15 2008-05-14 Neomax Co., Ltd. Verfahren zum Abbau eines Magnetfeldgenerators
CN100360084C (zh) * 1999-11-16 2008-01-09 株式会社新王磁材 磁场发生器
EP1102077B1 (de) * 1999-11-16 2006-03-08 Neomax Co., Ltd. Polstückeinheit für einen Magnet der bildgebenden magnetischen Resonanz
AU2872701A (en) * 2000-01-25 2001-08-07 Uri Rapoport Field adjusting mechanisms and methods for permanent magnet arrangement with backplate
US6822449B1 (en) 2000-11-22 2004-11-23 Fonar Corporation Ferromagnetic frame with laminated carbon steel
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
US7701209B1 (en) 2001-10-05 2010-04-20 Fonar Corporation Coils for horizontal field magnetic resonance imaging
US7906966B1 (en) 2001-10-05 2011-03-15 Fonar Corporation Quadrature foot coil antenna for magnetic resonance imaging
DE10224192A1 (de) * 2002-05-31 2003-12-18 Fraunhofer Ges Forschung Bildgebendes NMR-Verfahren sowie NMR-Vorrichtung
US8064984B2 (en) * 2003-03-18 2011-11-22 Esaote S.P.A. Magnetic resonance imaging apparatus
US7148689B2 (en) 2003-09-29 2006-12-12 General Electric Company Permanent magnet assembly with movable permanent body for main magnetic field adjustable
US7423431B2 (en) * 2003-09-29 2008-09-09 General Electric Company Multiple ring polefaceless permanent magnet and method of making
CN100350522C (zh) * 2004-05-18 2007-11-21 北京泰杰磁电研究所 一种磁共振成像磁体及构成方法
JP3992694B2 (ja) * 2004-05-24 2007-10-17 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 Ｍｒｉ装置
EP1808126B1 (de) * 2004-09-30 2012-12-26 Hitachi Metals, Ltd. Magnetfeldgenerator für mrt
US8401615B1 (en) 2004-11-12 2013-03-19 Fonar Corporation Planar coil flexion fixture for magnetic resonance imaging and use thereof
US9386939B1 (en) 2007-05-10 2016-07-12 Fonar Corporation Magnetic resonance imaging of the spine to detect scoliosis
JP2008312056A (ja) * 2007-06-15 2008-12-25 Citizen Electronics Co Ltd 電気音響変換器
JP5012572B2 (ja) * 2008-02-29 2012-08-29 富士通株式会社 マグネトロンスパッタ装置用磁石ユニット
JP2011525389A (ja) 2008-06-24 2011-09-22 アルバータ ヘルス サービシズ 磁石組立体およびイメージング・ボリューム用の磁場を決定する方法
KR20140109427A (ko) * 2012-01-30 2014-09-15 미쓰비시덴키 가부시키가이샤 자기회로
US9766310B1 (en) 2013-03-13 2017-09-19 Fonar Corporation Method and apparatus for magnetic resonance imaging of the cranio-cervical junction
US11075027B1 (en) * 2018-07-03 2021-07-27 Q Magnetics, LLC Permanent magnet for generating homogenous and intense magnetic field

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1110172A (en) * 1964-04-22 1968-04-18 Newport Instr Ltd Improvements in or relating to magnet structures
CA1198162A (en) * 1982-09-23 1985-12-17 Robert D. Hay Nmr imaging apparatus
US4580098A (en) * 1983-05-02 1986-04-01 E. I. Du Pont De Nemours And Company Permanent magnet NMR imaging apparatus
JPS6021084A (ja) * 1983-07-15 1985-02-02 富士通株式会社 立体表示装置
US4672346A (en) * 1984-04-11 1987-06-09 Sumotomo Special Metal Co., Ltd. Magnetic field generating device for NMR-CT
US4538130A (en) * 1984-04-23 1985-08-27 Field Effects, Inc. Tunable segmented ring magnet and method of manufacture
NL8402250A (nl) * 1984-07-17 1986-02-17 Philips Nv Kernspin resonantie apparaat met een rechthoekig permanent magnetische magneet.
US4647887A (en) * 1984-12-24 1987-03-03 The United States Of America As Represented By The Secretary Of The Army Lightweight cladding for magnetic circuits
JPS61115958U (de) * 1984-12-30 1986-07-22

Also Published As

Publication number Publication date
US4679022A (en) 1987-07-07
EP0228154B1 (de) 1990-12-05
EP0228154A2 (de) 1987-07-08
EP0228154A3 (en) 1988-07-20

Similar Documents

Publication Publication Date Title
DE3676066D1 (de) Einrichtung zur erzeugung von magnetfeldern fuer die magnetische kernresonanz-tomographie.
DE3670943D1 (de) Magnetfelderzeugende einrichtung fuer eine teilchenbeschleuniger-anlage.
FI863407A (fi) Magnetisk resonansavbildningsapparat innehaollande magnetiska element avsedda foer faelthomogenisering.
DE3772605D1 (de) Bilderzeugungssystem mittels magnetischer resonanz.
DE3751909T2 (de) Schnelles Bilderzeugungssystem mittels magnetischer Kernresonanz
DE68913879D1 (de) Kernspinresonanzgerät.
DE3671566D1 (de) Ferromagnetische abschirmung fuer magnetische resonanzmagnete.
DE3877995T2 (de) Ein magnetfeld erzeugende vorrichtung.
KR850003790A (ko) 핵자기 공명 장치
GB2199147B (en) Magnetic field generating system for magnetic resonance imaging system
DE3851496T2 (de) Abbildungsverfahren mittels magnetischer Resonanz und Vorrichtung hierfür.
FI844001L (fi) Ydinmagneettiseen resonanssiin perustuva laite
DE3875863T2 (de) Magnetisches resonanzgeraet mit gradientenspulensystem.
DE3689873D1 (de) Bilderzeugung mittels magnetischer Kernresonanz.
DE3681239D1 (de) Ermittlung von t1-relaxationszeiten in der automatisierten nuklearen magnetischen resonanz-bildsynthese.
IT8622405A0 (it) Procedimento e dispositivo per sostituire bobine.
DE3783992T2 (de) Messwandler fuer magnetische felder.
DE3751921T2 (de) Spulen zur Erzeugung von Magnetfeldern
DE3855944T2 (de) Kernresonanzabbildungssystem
DE3685259D1 (de) Verfahren zur bilderzeugung mittels magnetischer resonanz.
AT389053B (de) Einrichtung zur abschirmung gegen ein elektromagnetisches feld
DE3850716T2 (de) Kernspinnresonanzgerät und -verfahren.
DE3668992D1 (de) Gradientenspule fuer nmr-abbildungsanordnungen.
DE3681242D1 (de) Verfahren und apparatur zur kernmagnetischen resonanz.
NL192025B (nl) Magnetische-resonantie-afbeeldinrichting.

Legal Events

Date Code Title Description
8364 No opposition during term of opposition