CN115542214A - 磁共振成像装置 - Google Patents

磁共振成像装置 Download PDF

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Publication number
CN115542214A
CN115542214A CN202210632135.4A CN202210632135A CN115542214A CN 115542214 A CN115542214 A CN 115542214A CN 202210632135 A CN202210632135 A CN 202210632135A CN 115542214 A CN115542214 A CN 115542214A
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CN
China
Prior art keywords
magnetic
magnetic field
laminated body
coil
resonance imaging
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.)
Pending
Application number
CN202210632135.4A
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English (en)
Chinese (zh)
Inventor
后藤研吾
青木学
高柳泰介
星野伸
今村幸信
竹内博幸
中山武
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Fujifilm Corp
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Fujifilm Healthcare Corp
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Filing date
Publication date
Application filed by Fujifilm Healthcare Corp filed Critical Fujifilm Healthcare Corp
Publication of CN115542214A publication Critical patent/CN115542214A/zh
Pending legal-status Critical Current

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    • 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
    • G01R33/42—Screening
    • 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
    • G01R33/42—Screening
    • G01R33/421—Screening of main or gradient magnetic field
    • G01R33/4215—Screening of main or gradient magnetic field of the gradient magnetic field, e.g. using passive or active shielding of the gradient magnetic field
    • 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
    • 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
    • G01R33/3802—Manufacture or installation of magnet assemblies; Additional hardware for transportation or installation of the magnet assembly or for providing mechanical support to components of the magnet assembly
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F6/00—Superconducting magnets; Superconducting coils
    • 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

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  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
CN202210632135.4A 2021-06-29 2022-06-06 磁共振成像装置 Pending CN115542214A (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2021-107450 2021-06-29
JP2021107450A JP7646477B2 (ja) 2021-06-29 2021-06-29 磁気共鳴イメージング装置

Publications (1)

Publication Number Publication Date
CN115542214A true CN115542214A (zh) 2022-12-30

Family

ID=84543031

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210632135.4A Pending CN115542214A (zh) 2021-06-29 2022-06-06 磁共振成像装置

Country Status (3)

Country Link
US (1) US12025685B2 (https=)
JP (2) JP7646477B2 (https=)
CN (1) CN115542214A (https=)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04138131A (ja) * 1990-09-29 1992-05-12 Sumitomo Special Metals Co Ltd Ｍｒｉ用磁界発生装置
JP2002102205A (ja) * 2000-10-02 2002-04-09 Hitachi Medical Corp 磁気共鳴イメージング装置
CN101030471A (zh) * 2006-01-23 2007-09-05 株式会社日立制作所 电磁铁装置
WO2012014914A1 (ja) * 2010-07-27 2012-02-02 株式会社日立メディコ 傾斜磁場コイル装置、及び、磁気共鳴イメージング装置
JP2013169240A (ja) * 2012-02-17 2013-09-02 Hitachi Medical Corp 磁気共鳴イメージング装置
US20140171329A1 (en) * 2011-09-14 2014-06-19 Hitachi Medical Corporation Mri apparatus, operation method thereof, and quenching prevention device
JP2015013216A (ja) * 2009-09-28 2015-01-22 株式会社東芝 磁気共鳴イメージング装置及び傾斜磁場コイル
CN104822319A (zh) * 2012-12-25 2015-08-05 株式会社日立医疗器械 倾斜磁场线圈装置及磁共振成像装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2561591B2 (ja) 1991-12-27 1996-12-11 住友特殊金属株式会社 Ｍｒｉ用磁界発生装置
US5495171A (en) * 1993-01-19 1996-02-27 Fonar Corporation Eddy current control in NMR imaging systems
EP0645641B1 (en) * 1993-09-29 1999-06-16 Oxford Magnet Technology Limited Improvements in or relating to MRI magnets
JPH0831635A (ja) * 1994-07-08 1996-02-02 Sumitomo Special Metals Co Ltd Ｍｒｉ用磁界発生装置
DE69937722T2 (de) * 1998-04-14 2008-12-04 Hitachi Metals, Ltd. Magnetfelderzeuger zur bildgewinnung mittels kernspinresonanz
JP2003126060A (ja) * 2001-10-23 2003-05-07 Hitachi Ltd 核磁気共鳴断層写真装置のマグネット
JP4214736B2 (ja) * 2002-08-08 2009-01-28 日立金属株式会社 Ｍｒｉ用磁界発生装置
US20100219833A1 (en) * 2007-07-26 2010-09-02 Emscan Limited Magnet assembly
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
JP6368625B2 (ja) 2014-11-18 2018-08-01 株式会社日立製作所 磁気共鳴イメージング装置

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04138131A (ja) * 1990-09-29 1992-05-12 Sumitomo Special Metals Co Ltd Ｍｒｉ用磁界発生装置
JP2002102205A (ja) * 2000-10-02 2002-04-09 Hitachi Medical Corp 磁気共鳴イメージング装置
CN101030471A (zh) * 2006-01-23 2007-09-05 株式会社日立制作所 电磁铁装置
JP2015013216A (ja) * 2009-09-28 2015-01-22 株式会社東芝 磁気共鳴イメージング装置及び傾斜磁場コイル
WO2012014914A1 (ja) * 2010-07-27 2012-02-02 株式会社日立メディコ 傾斜磁場コイル装置、及び、磁気共鳴イメージング装置
US20140171329A1 (en) * 2011-09-14 2014-06-19 Hitachi Medical Corporation Mri apparatus, operation method thereof, and quenching prevention device
JP2013169240A (ja) * 2012-02-17 2013-09-02 Hitachi Medical Corp 磁気共鳴イメージング装置
CN104822319A (zh) * 2012-12-25 2015-08-05 株式会社日立医疗器械 倾斜磁场线圈装置及磁共振成像装置

Also Published As

Publication number Publication date
JP7646477B2 (ja) 2025-03-17
JP2025036694A (ja) 2025-03-14
US20220413071A1 (en) 2022-12-29
US12025685B2 (en) 2024-07-02
JP2023005490A (ja) 2023-01-18

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PB01 Publication
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SE01 Entry into force of request for substantive examination
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Effective date of registration: 20240827

Address after: Tokyo Capital of Japan

Applicant after: FUJIFILM Corp.

Country or region after: Japan

Address before: Chiba County, Japan

Applicant before: Fujifilm medical health Co.,Ltd.

Country or region before: Japan