GB2306007A - MRI magnet with flared openings - Google Patents

MRI magnet with flared openings Download PDF

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Publication number
GB2306007A
GB2306007A GB9618660A GB9618660A GB2306007A GB 2306007 A GB2306007 A GB 2306007A GB 9618660 A GB9618660 A GB 9618660A GB 9618660 A GB9618660 A GB 9618660A GB 2306007 A GB2306007 A GB 2306007A
Authority
GB
United Kingdom
Prior art keywords
magnet
coil windings
magnetic field
patient
magnetic
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.)
Withdrawn
Application number
GB9618660A
Other languages
English (en)
Other versions
GB9618660D0 (en
Inventor
Joseph W Carlson
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.)
Toshiba America MRI Inc
Original Assignee
Toshiba America MRI Inc
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 Toshiba America MRI Inc filed Critical Toshiba America MRI Inc
Publication of GB9618660D0 publication Critical patent/GB9618660D0/en
Publication of GB2306007A publication Critical patent/GB2306007A/en
Withdrawn legal-status Critical Current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
    • G01R33/381—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using electromagnets
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
GB9618660A 1995-10-03 1996-09-06 MRI magnet with flared openings Withdrawn GB2306007A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/538,611 US5799653A (en) 1995-10-03 1995-10-03 Magnetic resonance imaging apparatus with decreased patient claustrophobia and increased access to patient

Publications (2)

Publication Number Publication Date
GB9618660D0 GB9618660D0 (en) 1996-10-16
GB2306007A true GB2306007A (en) 1997-04-23

Family

ID=24147651

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9618660A Withdrawn GB2306007A (en) 1995-10-03 1996-09-06 MRI magnet with flared openings

Country Status (3)

Country Link
US (1) US5799653A (enExample)
JP (2) JP3856505B2 (enExample)
GB (1) GB2306007A (enExample)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0933645A3 (en) * 1998-01-05 2001-05-16 Marconi Medical Systems, Inc. Design of a shielded gradient coil assembly for magnetic resonance imaging usingfinite element analysis
WO2010088675A1 (en) * 2009-02-02 2010-08-05 Northrop Grumman Guidance and Electronics Company Inc. Magnetic solenoid for generating a substantially uniform magnetic field
US8487729B2 (en) 2009-02-02 2013-07-16 Northrop Grumman Guidance & Electronics Magnetic solenoid for generating a substantially uniform magnetic field
GB2580047A (en) * 2018-12-20 2020-07-15 Siemens Healthcare Ltd Cryostat for superconductive magnet

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2392078C (en) 1999-11-03 2005-02-22 Nexicor Llc Hand held induction tool
US6288624B1 (en) * 1999-11-23 2001-09-11 Picker Nordstar Corporation Enlongated field of view open magnetic resonance imaging system with dipole magnet
JP4567903B2 (ja) * 2001-03-22 2010-10-27 東京電力株式会社 超電導コイル装置
US7639015B2 (en) * 2003-07-18 2009-12-29 Mks Instruments, Inc. Methods and systems for stabilizing an amplifier
US7498810B2 (en) * 2004-09-11 2009-03-03 General Electric Company Systems, methods and apparatus for specialized magnetic resonance imaging with dual-access conical bore
JP4566024B2 (ja) * 2005-02-28 2010-10-20 株式会社日立メディコ 磁気共鳴イメージング装置
JP2007026818A (ja) * 2005-07-14 2007-02-01 Nhv Corporation 磁場勾配を形成する電磁石
WO2007076252A1 (en) * 2005-12-20 2007-07-05 Koninklijke Philips Electronics, N.V. Magnetic resonance scanner with a longitudinal magnetic field gradient system
JP4632363B2 (ja) * 2005-12-28 2011-02-16 Ｎｅｃトーキン株式会社 磁界発生コイル
US7825760B2 (en) * 2006-09-07 2010-11-02 Bird Mark D Conical magnet
JP4838684B2 (ja) * 2006-10-03 2011-12-14 日立金属株式会社 磁界発生装置
US10416253B2 (en) 2016-11-22 2019-09-17 Quantum Design International, Inc. Conical access split magnet system
EP4113146B1 (en) * 2021-06-30 2025-05-07 Siemens Healthineers AG Magnetic resonance imaging device with a concave-shaped field generation unit

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2275538A (en) * 1992-09-08 1994-08-31 Gen Electric Frustoconical magnet for magnetic resonance imaging
US5416415A (en) * 1994-08-05 1995-05-16 General Electric Company Over-shoulder MRI magnet for human brain imaging
GB2295673A (en) * 1994-11-29 1996-06-05 Oxford Magnet Tech Short-bore cryogenic MRI magnet with flared openings
GB2299673A (en) * 1995-04-07 1996-10-09 Oxford Magnet Tech MRI magnet with flared opening

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0121367B1 (en) * 1983-03-30 1990-05-23 Picker International Limited Nuclear magnetic resonance imaging apparatus
US4710716A (en) * 1985-09-20 1987-12-01 Elscint Ltd. Slice orientation selection arrangement
EP0288729B1 (de) * 1987-03-30 1991-11-27 Siemens Aktiengesellschaft Quenchausbreitungseinrichtung für einen supraleitenden Magneten
US4829252A (en) * 1987-10-28 1989-05-09 The Regents Of The University Of California MRI system with open access to patient image volume
JPH0217038A (ja) * 1988-07-06 1990-01-22 Toshiba Corp 磁気共鳴イメージング装置
US4985678A (en) * 1988-10-14 1991-01-15 Picker International, Inc. Horizontal field iron core magnetic resonance scanner
US5305749B1 (en) * 1992-09-24 2000-05-02 Univ California Side-loading of patient into mri c-magnet while maintaining adjacent open accessibility to patient
US5448214A (en) * 1994-06-15 1995-09-05 General Electric Company Open MRI magnet with superconductive shielding

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2275538A (en) * 1992-09-08 1994-08-31 Gen Electric Frustoconical magnet for magnetic resonance imaging
US5416415A (en) * 1994-08-05 1995-05-16 General Electric Company Over-shoulder MRI magnet for human brain imaging
GB2295673A (en) * 1994-11-29 1996-06-05 Oxford Magnet Tech Short-bore cryogenic MRI magnet with flared openings
GB2299673A (en) * 1995-04-07 1996-10-09 Oxford Magnet Tech MRI magnet with flared opening

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0933645A3 (en) * 1998-01-05 2001-05-16 Marconi Medical Systems, Inc. Design of a shielded gradient coil assembly for magnetic resonance imaging usingfinite element analysis
WO2010088675A1 (en) * 2009-02-02 2010-08-05 Northrop Grumman Guidance and Electronics Company Inc. Magnetic solenoid for generating a substantially uniform magnetic field
US8330566B2 (en) 2009-02-02 2012-12-11 Northrop Grumman Guidance And Electronics Company, Inc. Magnetic solenoid for generating a substantially uniform magnetic field
US8487729B2 (en) 2009-02-02 2013-07-16 Northrop Grumman Guidance & Electronics Magnetic solenoid for generating a substantially uniform magnetic field
EP2724353A4 (en) * 2011-06-21 2015-07-29 Northrop Grumman Guidance & Electronics Co Inc ELECTROMAGNET FOR GENERATING A SUBSTANTIALLY SAME MAGNETIC FIELD
GB2580047A (en) * 2018-12-20 2020-07-15 Siemens Healthcare Ltd Cryostat for superconductive magnet
GB2580047B (en) * 2018-12-20 2021-02-24 Siemens Healthcare Ltd Cryostat for superconductive magnet
US11714148B2 (en) 2018-12-20 2023-08-01 Siemens Healthcare Limited Cryostat for superconductive magnet

Also Published As

Publication number Publication date
US5799653A (en) 1998-09-01
JP4188384B2 (ja) 2008-11-26
JP3856505B2 (ja) 2006-12-13
JP2007203032A (ja) 2007-08-16
JPH09192117A (ja) 1997-07-29
GB9618660D0 (en) 1996-10-16

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)