CN1236724C - 磁共振成像装置 - Google Patents

磁共振成像装置 Download PDF

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Publication number
CN1236724C
CN1236724C CN01810225.5A CN01810225A CN1236724C CN 1236724 C CN1236724 C CN 1236724C CN 01810225 A CN01810225 A CN 01810225A CN 1236724 C CN1236724 C CN 1236724C
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CN
China
Prior art keywords
center
mentioned
magnetic field
resonance imaging
static 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.)
Expired - Fee Related
Application number
CN01810225.5A
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English (en)
Chinese (zh)
Other versions
CN1431885A (zh
Inventor
吉野仁志
前田常雄
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Hitachi Ltd
Original Assignee
Hitachi Medical Corp
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Publication date
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Publication of CN1431885A publication Critical patent/CN1431885A/zh
Application granted granted Critical
Publication of CN1236724C publication Critical patent/CN1236724C/zh
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G01R33/38—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
    • G01R33/3806—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

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  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
CN01810225.5A 2000-07-11 2001-07-10 磁共振成像装置 Expired - Fee Related CN1236724C (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2000210125A JP3934312B2 (ja) 2000-07-11 2000-07-11 磁気共鳴イメージング装置
JP210125/2000 2000-07-11
JP210125/00 2000-07-11

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CNB2005101267114A Division CN100438825C (zh) 2000-07-11 2001-07-10 磁共振成像装置

Publications (2)

Publication Number Publication Date
CN1431885A CN1431885A (zh) 2003-07-23
CN1236724C true CN1236724C (zh) 2006-01-18

Family

ID=18706437

Family Applications (2)

Application Number Title Priority Date Filing Date
CN01810225.5A Expired - Fee Related CN1236724C (zh) 2000-07-11 2001-07-10 磁共振成像装置
CNB2005101267114A Expired - Fee Related CN100438825C (zh) 2000-07-11 2001-07-10 磁共振成像装置

Family Applications After (1)

Application Number Title Priority Date Filing Date
CNB2005101267114A Expired - Fee Related CN100438825C (zh) 2000-07-11 2001-07-10 磁共振成像装置

Country Status (5)

Country Link
US (1) US6812702B2 (enExample)
EP (1) EP1300111A4 (enExample)
JP (1) JP3934312B2 (enExample)
CN (2) CN1236724C (enExample)
WO (1) WO2002003862A1 (enExample)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4093736B2 (ja) 2001-06-28 2008-06-04 株式会社日立メディコ 核磁気共鳴診断装置および診断システム
JP4143812B2 (ja) * 2002-07-01 2008-09-03 株式会社日立メディコ 磁気共鳴イメージング装置
DE102005061558A1 (de) * 2005-12-22 2007-07-05 Siemens Ag Magnetresonanzeinrichtung mit einem Patientenlagerungstisch und einem Hauptfeldmagneten
CN104146710A (zh) * 2014-08-14 2014-11-19 中国科学院电工研究所 一种产生非球形匀场区磁场的磁共振成像装置
CN106725579A (zh) * 2016-12-28 2017-05-31 上海联影医疗科技有限公司 医疗设备
EP3736591A1 (de) * 2019-05-09 2020-11-11 Siemens Healthcare GmbH Grundfeldmagnetanordnung für ein magnetresonanztomographie-system
EP3839541B1 (en) * 2019-11-27 2024-12-25 Siemens Healthineers AG Toroidal magnet configuration for dedicated mri scanners
CN111580030B (zh) * 2020-05-13 2022-04-22 山东省肿瘤防治研究院（山东省肿瘤医院） 用于核磁共振与放疗相融合的磁场制备结构、设备及系统
CN114184990B (zh) * 2021-11-29 2024-01-05 深圳航天科技创新研究院 磁共振成像用的磁体及铁轭的优化方法

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2215522B (en) * 1988-02-26 1990-11-28 Picker Int Ltd Magnet arrangements
US4985678A (en) * 1988-10-14 1991-01-15 Picker International, Inc. Horizontal field iron core magnetic resonance scanner
US5412363A (en) * 1991-12-20 1995-05-02 Applied Superconetics, Inc. Open access superconducting MRI magnet
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
US5495222A (en) * 1994-04-15 1996-02-27 New York University Open permanent magnet structure for generating highly uniform field
JP3480991B2 (ja) 1994-08-08 2003-12-22 株式会社日立メディコ 磁気共鳴イメージング装置用磁気回路およびそれを備えた磁気共鳴イメージング装置
JP3746329B2 (ja) * 1996-05-16 2006-02-15 株式会社日立メディコ 磁気共鳴イメージング装置
JPH10135027A (ja) 1996-10-30 1998-05-22 Hitachi Medical Corp 超電導磁石装置
DE69739151D1 (de) * 1996-10-30 2009-01-15 Hitachi Medical Corp Offene supraleitende Magnetvorrichtung
JPH1128199A (ja) * 1997-07-10 1999-02-02 Hitachi Medical Corp 磁気共鳴イメージング装置
JPH11104109A (ja) * 1997-10-07 1999-04-20 Shin Etsu Chem Co Ltd 磁場発生装置
JP3871789B2 (ja) * 1997-12-01 2007-01-24 株式会社日立メディコ パッシブシールド型超電導磁石
IT1298022B1 (it) * 1997-12-05 1999-12-20 Esaote Spa Magnete permanente per il rilevamento d'immagini in risonaza magnetica nucleare.
JP2953659B1 (ja) * 1998-08-06 1999-09-27 住友特殊金属株式会社 Ｍｒｉ用磁界発生装置およびその組立方法並びにそれに用いる磁石ユニットの組立方法
IT1305971B1 (it) * 1998-08-31 2001-05-21 Esaote Spa Macchina per il rilevamento di immagini in risonanza magneticanucleare del tipo dedicato al rilevamento d'immagini di limitate
JP2000126153A (ja) * 1998-10-22 2000-05-09 Hitachi Medical Corp 超電導磁石装置
JP2000157505A (ja) * 1998-11-30 2000-06-13 Ge Yokogawa Medical Systems Ltd テーブル及びｍｒｉ装置

Also Published As

Publication number Publication date
US6812702B2 (en) 2004-11-02
CN100438825C (zh) 2008-12-03
JP3934312B2 (ja) 2007-06-20
EP1300111A4 (en) 2006-03-29
US20030110564A1 (en) 2003-06-19
CN1806753A (zh) 2006-07-26
CN1431885A (zh) 2003-07-23
WO2002003862A1 (fr) 2002-01-17
EP1300111A1 (en) 2003-04-09
JP2002017708A (ja) 2002-01-22

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Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20170306

Address after: Tokyo, Japan, Japan

Patentee after: Hitachi Ltd.

Address before: Tokyo, Japan, Japan

Patentee before: Hitachi Medical Corporation

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20060118

Termination date: 20190710