WO2015178411A1 - Dispositif irm ayant un aimant ayant un champ magnétique de fuite extrêmement étroit - Google Patents

Dispositif irm ayant un aimant ayant un champ magnétique de fuite extrêmement étroit Download PDF

Info

Publication number
WO2015178411A1
WO2015178411A1 PCT/JP2015/064435 JP2015064435W WO2015178411A1 WO 2015178411 A1 WO2015178411 A1 WO 2015178411A1 JP 2015064435 W JP2015064435 W JP 2015064435W WO 2015178411 A1 WO2015178411 A1 WO 2015178411A1
Authority
WO
WIPO (PCT)
Prior art keywords
magnetic field
coil
shield
magnet
magnetomotive force
Prior art date
Application number
PCT/JP2015/064435
Other languages
English (en)
Japanese (ja)
Inventor
充志 阿部
竹内　博幸
Original Assignee
株式会社 日立メディコ
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 株式会社 日立メディコ filed Critical 株式会社 日立メディコ
Priority to JP2016521125A priority Critical patent/JP6486344B2/ja
Priority to CN201580026951.9A priority patent/CN106456047B/zh
Publication of WO2015178411A1 publication Critical patent/WO2015178411A1/fr

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves 
    • A61B5/055—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves  involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging

Abstract

Dans la présente invention, un électro-aimant, qui est configuré par un groupe de bobines principales (courant positif) et un groupe de bobines de protection (courant négatif) qui constituent un dispositif d'imagerie de tomographie par résonance magnétique (IRM) utilisé pour un diagnostic médical, contient trois ou plusieurs blocs de bobine de protection de courant négatif, et au moins un ou plusieurs des blocs de bobine de protection sont positionnés au-delà d'un bloc de bobine principale et ont un rayon qui est plus petit que les autres blocs de bobine de protection.
PCT/JP2015/064435 2014-05-20 2015-05-20 Dispositif irm ayant un aimant ayant un champ magnétique de fuite extrêmement étroit WO2015178411A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2016521125A JP6486344B2 (ja) 2014-05-20 2015-05-20 水平磁場型のｍｒｉ装置におけるマグネット起磁力配置の設計方法
CN201580026951.9A CN106456047B (zh) 2014-05-20 2015-05-20 极窄漏磁场磁铁型mri装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014103910 2014-05-20
JP2014-103910 2014-05-20

Publications (1)

Publication Number Publication Date
WO2015178411A1 true WO2015178411A1 (fr) 2015-11-26

Family

ID=54554077

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2015/064435 WO2015178411A1 (fr) 2014-05-20 2015-05-20 Dispositif irm ayant un aimant ayant un champ magnétique de fuite extrêmement étroit

Country Status (3)

Country Link
JP (1) JP6486344B2 (fr)
CN (1) CN106456047B (fr)
WO (1) WO2015178411A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005193056A (ja) * 2004-01-06 2005-07-21 Ge Medical Systems Global Technology Co Llc 磁気共鳴イメージングのための方法及び装置
US20060255805A1 (en) * 2005-03-29 2006-11-16 Magnetica Limited Shielded, asymmetric magnets for use in magnetic resonance imaging
JP2008253593A (ja) * 2007-04-06 2008-10-23 Toshiba Corp 磁気共鳴イメージング装置、シールドコイル、シールドコイルの製造方法、及び、磁気共鳴イメージング装置の駆動方法
JP2015123161A (ja) * 2013-12-26 2015-07-06 株式会社神戸製鋼所 超電導マグネット装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60217608A (ja) * 1984-04-12 1985-10-31 Fuji Electric Corp Res & Dev Ltd 均一磁場コイル
JP4369345B2 (ja) * 2004-11-01 2009-11-18 株式会社神戸製鋼所 磁場発生装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005193056A (ja) * 2004-01-06 2005-07-21 Ge Medical Systems Global Technology Co Llc 磁気共鳴イメージングのための方法及び装置
US20060255805A1 (en) * 2005-03-29 2006-11-16 Magnetica Limited Shielded, asymmetric magnets for use in magnetic resonance imaging
JP2008253593A (ja) * 2007-04-06 2008-10-23 Toshiba Corp 磁気共鳴イメージング装置、シールドコイル、シールドコイルの製造方法、及び、磁気共鳴イメージング装置の駆動方法
JP2015123161A (ja) * 2013-12-26 2015-07-06 株式会社神戸製鋼所 超電導マグネット装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
MITSUSHI ABE ET AL.: "Seimitsu Jiba Hassei-yo Jishaku no Tokuichi Bunkai o Mochiita Dojiku Coil Haichi no Kento", THE SYMPOSIUM ON ELECTROMAGNETICS AND DYNAMICS KOEN RONBUNSHU, May 2012 (2012-05-01), pages 79 - 82 *

Also Published As

Publication number Publication date
CN106456047A (zh) 2017-02-22
JP6486344B2 (ja) 2019-03-20
JPWO2015178411A1 (ja) 2017-04-20
CN106456047B (zh) 2020-03-06

Similar Documents

Publication Publication Date Title
US7071694B1 (en) Magnet assembly of an MRI system with concentric annular ferromagnetic laminations
CN104685584B (zh) 用于构造磁共振成像超导磁体的方法
WO2011065455A1 (fr) Bobine de gradient, dispositif d'imagerie par résonance magnétique, et procédé de conception du profil de bobine
AU658348B2 (en) Screened electromagnetic coil of restricted length having optimized field and method
US5396208A (en) Magnet system for magnetic resonance imaging
CN110780245A (zh) 用于平面超导磁共振系统的高屏蔽梯度线圈设计方法及其梯度线圈
CN108802646B (zh) 基于0-1整数规划的永磁型纵向梯度线圈
JP2001167927A (ja) 磁場勾配コイルの設計方法及び磁場勾配コイル
US7755358B2 (en) Method to determine the design of a basic magnet of a magnetic resonance apparatus with at least one gradient coil system
JP6486344B2 (ja) 水平磁場型のｍｒｉ装置におけるマグネット起磁力配置の設計方法
GB2354327A (en) Gradient coil system with multiple power supplies
CN107831462A (zh) 基于0‑1整数规划的纵向梯度线圈
Niu et al. A novel design method of independent zonal superconducting shim coil
CN107831461A (zh) 基于0‑1整数规划的纵向梯度线圈设计方法
CN112597617A (zh) 一种梯度场线圈优化方法
JPS625161A (ja) Ｍｒｉ用マグネツト
JP7416377B2 (ja) 多極電磁石、およびそれを用いた加速器
While et al. 3D Gradient coil design–toroidal surfaces
JPS63281410A (ja) 磁気シ−ルド付電磁石
US20170276748A1 (en) Force reduced magnetic shim drawer
Kalimov et al. Optimization of the radiation resistant quadrupole magnets for the SIS100 accelerator of the FAIR project
JP5752711B2 (ja) 静磁場コイル装置および核磁気共鳴撮像装置
Du et al. Active shim design of a 7 T highly homogeneous superconducting magnet for Lanzhou Penning trap
RU2782979C2 (ru) Катушка экранирования градиентного магнитного поля с меандровой обмоткой для устройства магнитно-резонансной томографии
You et al. Asymmetric gradient coil design by numerical approach for MRI brain imaging

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15796010

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2016521125

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15796010

Country of ref document: EP

Kind code of ref document: A1