DE3675023D1 - Magneten. - Google Patents

Magneten.

Info

Publication number
DE3675023D1
DE3675023D1 DE8686300006T DE3675023T DE3675023D1 DE 3675023 D1 DE3675023 D1 DE 3675023D1 DE 8686300006 T DE8686300006 T DE 8686300006T DE 3675023 T DE3675023 T DE 3675023T DE 3675023 D1 DE3675023 D1 DE 3675023D1
Authority
DE
Germany
Prior art keywords
magnets
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
DE8686300006T
Other languages
English (en)
Inventor
Ian Leitch Mcdougall
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.)
Oxford Instruments Superconductivity Ltd
Original Assignee
Oxford Advanced Technology 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 Oxford Advanced Technology Ltd filed Critical Oxford Advanced Technology Ltd
Application granted granted Critical
Publication of DE3675023D1 publication Critical patent/DE3675023D1/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
    • G01R33/387—Compensation of inhomogeneities
    • G01R33/3875—Compensation of inhomogeneities using correction coil assemblies, e.g. active shimming
    • 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
    • G01R33/3806—Open magnet assemblies for improved access to the sample, e.g. C-type or U-type 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
    • G01R33/381—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using electromagnets
    • G01R33/3815—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using electromagnets with superconducting coils, e.g. power supply therefor
    • 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
    • G01R33/3808—Magnet assemblies for single-sided MR wherein the magnet assembly is located on one side of a subject only; Magnet assemblies for inside-out MR, e.g. for MR in a borehole or in a blood vessel, or magnet assemblies for fringe-field MR

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
DE8686300006T 1985-01-04 1986-01-02 Magneten. Expired - Lifetime DE3675023D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB858500248A GB8500248D0 (en) 1985-01-04 1985-01-04 Solenoids

Publications (1)

Publication Number Publication Date
DE3675023D1 true DE3675023D1 (de) 1990-11-29

Family

ID=10572443

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686300006T Expired - Lifetime DE3675023D1 (de) 1985-01-04 1986-01-02 Magneten.

Country Status (5)

Country Link
US (1) US4689591A (de)
EP (1) EP0187691B1 (de)
JP (1) JPH069172B2 (de)
DE (1) DE3675023D1 (de)
GB (1) GB8500248D0 (de)

Families Citing this family (61)

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GB8432439D0 (en) * 1984-12-21 1985-02-06 Oxford Magnet Tech Magnet assembly
JPS62264606A (ja) * 1986-05-07 1987-11-17 Toshiba Corp 磁場補正用コイル装置
DE3616078A1 (de) * 1986-05-13 1987-11-19 Bruker Analytische Messtechnik Elektromagnetsystem fuer die kernspintomographie
DE3628161A1 (de) * 1986-08-20 1988-02-25 Spectrospin Ag Vorrichtung zum kompensieren von zeitvarianten feldstoerungen in magnetfeldern
US4812797A (en) * 1988-03-22 1989-03-14 General Electric Company Compensation coil for temporal drift of a superconducting magnet
JPH03139328A (ja) * 1989-10-25 1991-06-13 Toshiba Corp Ｍｒｉ装置用超電導マグネット
US5136273A (en) * 1988-10-17 1992-08-04 Kabushiki Kaisha Toshiba Magnet apparatus for use in a magnetic resonance imaging system
GB8825529D0 (en) * 1988-11-01 1988-12-07 Oxford Magnet Tech Magnetic field generating assembly
DE3907927A1 (de) * 1989-03-11 1990-09-20 Bruker Analytische Messtechnik Magnetsystem
GB8912601D0 (en) * 1989-06-01 1989-07-19 Oxford Magnet Tech Magnetic field generating apparatus
US5278504A (en) * 1989-06-16 1994-01-11 Picker International, Inc. Gradient coil with off center sweet spot for magnetic resonance imaging
GB9009577D0 (en) * 1990-04-27 1990-06-20 Oxford Advanced Tech Magnetic field generating assembly
NL9002574A (nl) * 1990-11-27 1992-06-16 Philips Nv Magnetisch resonantieapparaat.
GB9105286D0 (en) * 1991-03-13 1991-04-24 Oxford Instr Ltd Magnetic field generating apparatus
US5382904A (en) * 1992-04-15 1995-01-17 Houston Advanced Research Center Structured coil electromagnets for magnetic resonance imaging and method for fabricating the same
US5359310A (en) * 1992-04-15 1994-10-25 Houston Advanced Research Center Ultrashort cylindrical shielded electromagnet for magnetic resonance imaging
IL106779A0 (en) * 1992-09-11 1993-12-08 Magna Lab Inc Permanent magnetic structure
US5428292A (en) * 1994-04-29 1995-06-27 General Electric Company Pancake MRI magnet with modified imaging volume
US5416415A (en) * 1994-08-05 1995-05-16 General Electric Company Over-shoulder MRI magnet for human brain imaging
US5585724A (en) * 1995-06-12 1996-12-17 Picker International, Inc. Magnetic resonance gradient coils with interstitial gap
EP0766094B1 (de) * 1995-09-28 2002-05-29 Siemens Aktiengesellschaft Magnetanordnung für ein diagnostisches Magnetresonanzgerät
US5818319A (en) * 1995-12-21 1998-10-06 The University Of Queensland Magnets for magnetic resonance systems
DE59700179D1 (de) * 1996-03-28 1999-07-08 Siemens Ag Magnetanordnung für die bildgebende magnetische Resonanz mit zwei getrennten Abbildungsvolumina
DE19620926C2 (de) * 1996-05-24 2001-08-09 Bruker Analytik Gmbh Magnetanordnung für ein NMR-Tomographiesystem, insbesondere für Haut- und Oberflächenuntersuchungen, Verfahren zur Herstellung der Magnetanordnung und Gradientenspulensystem
US5864236A (en) * 1996-07-05 1999-01-26 Toshiba America Mri, Inc. Open configuration MRI magnetic flux path
US5677630A (en) * 1996-10-21 1997-10-14 General Electric Company Planar superconducting MRI magnet
JP2002034947A (ja) * 1997-10-24 2002-02-05 Hitachi Ltd マグネット装置、および、これを用いたｍｒｉ装置
JP3702106B2 (ja) * 1998-09-29 2005-10-05 株式会社東芝 磁気共鳴イメージング装置
JP2000107151A (ja) * 1998-09-30 2000-04-18 Toshiba Corp 磁気共鳴イメージング装置
IL143909A0 (en) * 1998-12-23 2002-04-21 Jakab Peter D Magnetic resonance scanner with electromagnetic position and orientation tracking device
US6215384B1 (en) * 1999-04-15 2001-04-10 General Electric Company Magnet including shielding
US6218923B1 (en) * 1999-04-15 2001-04-17 General Electric Company Magnet having shielding
US6215383B1 (en) * 1999-04-15 2001-04-10 General Electric Company Magnet with shielding
AU773894B2 (en) * 1999-08-03 2004-06-10 Nmr Holdings No. 2 Pty Limited Asymmetric superconducting magnets for magnetic resonance imaging
DE60032295T2 (de) * 1999-08-03 2007-05-03 NMR Holdings No. 2 Pty Ltd., Woolloomooloo Entwurfsverfahren für supraleitende Magnete
AUPQ198899A0 (en) * 1999-08-03 1999-08-26 University Of Queensland, The A method of magnet design and magnet configuration
US6396377B1 (en) * 2000-08-25 2002-05-28 Everson Electric Company Liquid cryogen-free superconducting magnet system
AUPQ978700A0 (en) * 2000-08-30 2000-09-21 Nmr Holdings No. 2 Pty Limited Asymmetric zonal shim coils for magnetic resonance
US6700468B2 (en) * 2000-12-01 2004-03-02 Nmr Holdings No. 2 Pty Limited Asymmetric magnets for magnetic resonance imaging
DE10117595C1 (de) 2001-04-07 2002-12-05 Bruker Biospin Gmbh Asymmetrische Anordnung permanentmagnetischer Elemente für eine Magnetresonanzapparatur und Verfahren zur Herstellung einer solchen Magnetanordnung
WO2002082979A2 (en) * 2001-04-18 2002-10-24 Bbms Ltd. Navigating and maneuvering of an in vivo vechicle by extracorporeal devices
US6462548B1 (en) * 2001-07-09 2002-10-08 Ge Medical Systems Global Technology Company Open architecture magnetic reasonance superconducting platform magnet conical imaging
KR100473627B1 (ko) * 2002-06-03 2005-03-10 한국전기연구원 고균등 자장발생용 초전도 자석의 설계법
JP4142011B2 (ja) * 2002-09-30 2008-08-27 オックスフォード インストルメンツ パブリックリミテッド カンパニー 磁場生成組立体及び方法
GB0403186D0 (en) * 2004-02-12 2004-03-17 Oxford Instr Plc Magnetic resonance apparatus and method
JP5224888B2 (ja) * 2008-04-15 2013-07-03 ジャパンスーパーコンダクタテクノロジー株式会社 超電導マグネットおよびそれを備えたマグネット装置
JP5301871B2 (ja) * 2008-04-28 2013-09-25 ジャパンスーパーコンダクタテクノロジー株式会社 超電導マグネットおよびそれを備えたマグネット装置
ITGE20090059A1 (it) * 2009-07-28 2011-01-29 Esaote Spa Macchina per il rilevamento di immagini mri
CN102667517B (zh) * 2009-12-21 2015-06-03 Nmr控股2号有限公司 在磁共振成像中使用的开孔磁体
US10191127B2 (en) 2012-10-31 2019-01-29 Aspect Imaging Ltd. Magnetic resonance imaging system including a protective cover and a camera
US10076266B2 (en) 2010-07-07 2018-09-18 Aspect Imaging Ltd. Devices and methods for a neonate incubator, capsule and cart
US11278461B2 (en) 2010-07-07 2022-03-22 Aspect Imaging Ltd. Devices and methods for a neonate incubator, capsule and cart
DE202011051313U1 (de) 2010-09-16 2011-11-23 Aspect Magnet Technologies Ltd. Geschlossenes Lebensunterstützungssystem für Frühgeborene
US10794975B2 (en) 2010-09-16 2020-10-06 Aspect Imaging Ltd. RF shielding channel in MRI-incubator's closure assembly
CN103151136B (zh) * 2013-01-25 2015-08-12 中国科学院电工研究所 一种非对称自屏蔽开放式磁共振成像超导磁体
US9535141B2 (en) 2013-03-13 2017-01-03 Aspect Imaging Ltd. MRI safety device means and methods thereof
DE202013105212U1 (de) 2013-11-17 2013-12-19 Aspect Imaging Ltd. Schließvorrichtung eines MRT-Inkubators
US11287497B2 (en) 2016-08-08 2022-03-29 Aspect Imaging Ltd. Device, system and method for obtaining a magnetic measurement with permanent magnets
US10224135B2 (en) 2016-08-08 2019-03-05 Aspect Imaging Ltd. Device, system and method for obtaining a magnetic measurement with permanent magnets
US11988730B2 (en) 2016-08-08 2024-05-21 Aspect Imaging Ltd. Device, system and method for obtaining a magnetic measurement with permanent magnets
US11399732B2 (en) 2016-09-12 2022-08-02 Aspect Imaging Ltd. RF coil assembly with a head opening and isolation channel

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2849355A1 (de) * 1978-11-14 1980-05-29 Philips Patentverwaltung Magnetspulenanordnung zur erzeugung eines homogenen magnetfeldes fuer magnetresonanz-anordnungen
US4374360A (en) * 1980-05-29 1983-02-15 Sepponen Raimo E NMR Diagnosis apparatus
DE3123493A1 (de) * 1981-06-13 1982-12-30 Bruker Analytische Meßtechnik GmbH, 7512 Rheinstetten Elektromagnet fuer die nmr-tomographie
NL8203756A (nl) * 1982-09-28 1984-04-16 Holec Nv Magneetspoeleninrichting.
JPS5985651A (ja) * 1982-11-08 1984-05-17 株式会社東芝 診断用核磁気共鳴装置
DE3245944A1 (de) * 1982-12-11 1984-06-14 Bruker Analytische Meßtechnik GmbH, 7512 Rheinstetten Elektromagnet fuer die nmr-tomographie
EP0121367B1 (de) * 1983-03-30 1990-05-23 Picker International Limited Gerät zur Bilderzeugung mittels magnetischer Kernresonanz
GB8321236D0 (en) * 1983-08-05 1983-09-07 Technicare Corp Gradient null displacement coil
GB8410972D0 (en) * 1984-04-30 1984-06-06 Oxford Magnet Tech Magnet assembly

Also Published As

Publication number Publication date
JPS61168904A (ja) 1986-07-30
JPH069172B2 (ja) 1994-02-02
EP0187691A2 (de) 1986-07-16
US4689591A (en) 1987-08-25
EP0187691A3 (en) 1987-09-02
EP0187691B1 (de) 1990-10-24
GB8500248D0 (en) 1985-02-13

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: OXFORD INSTRUMENTS SUPERCONDUCTIVITY LTD., EYNSHAM