DE69633683D1 - Magnetkreisanordnung mit einander gegenüberliegenden Permanentmagneten - Google Patents
Magnetkreisanordnung mit einander gegenüberliegenden PermanentmagnetenInfo
- Publication number
- DE69633683D1 DE69633683D1 DE69633683T DE69633683T DE69633683D1 DE 69633683 D1 DE69633683 D1 DE 69633683D1 DE 69633683 T DE69633683 T DE 69633683T DE 69633683 T DE69633683 T DE 69633683T DE 69633683 D1 DE69633683 D1 DE 69633683D1
- Authority
- DE
- Germany
- Prior art keywords
- permanent magnets
- magnetic circuit
- circuit arrangement
- opposing permanent
- opposing
- 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
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
- G01R33/383—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
- G01R33/387—Compensation of inhomogeneities
- G01R33/3873—Compensation of inhomogeneities using ferromagnetic bodies ; Passive shimming
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21854995A JP3151129B2 (ja) | 1995-08-28 | 1995-08-28 | 磁石対向型永久磁石磁気回路とその磁場調整方法 |
JP21854495 | 1995-08-28 | ||
JP7218544A JPH0961507A (ja) | 1995-08-28 | 1995-08-28 | 磁石対向型永久磁石磁気回路 |
JP21854995 | 1995-08-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69633683D1 true DE69633683D1 (de) | 2004-11-25 |
DE69633683T2 DE69633683T2 (de) | 2006-03-09 |
Family
ID=26522620
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69613061T Expired - Lifetime DE69613061T2 (de) | 1995-08-28 | 1996-08-27 | Magnetkreisanordnung mit einander gegenüberliegenden Permanentmagneten |
DE69633683T Expired - Lifetime DE69633683T2 (de) | 1995-08-28 | 1996-08-27 | Magnetkreisanordnung mit einander gegenüberliegenden Permanentmagneten |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69613061T Expired - Lifetime DE69613061T2 (de) | 1995-08-28 | 1996-08-27 | Magnetkreisanordnung mit einander gegenüberliegenden Permanentmagneten |
Country Status (3)
Country | Link |
---|---|
US (2) | US5864275A (de) |
EP (3) | EP1515150A1 (de) |
DE (2) | DE69613061T2 (de) |
Families Citing this family (57)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6893772B2 (en) * | 1993-11-19 | 2005-05-17 | Medtronic, Inc. | Current collector for lithium electrode |
US5888247A (en) * | 1995-04-10 | 1999-03-30 | Cardiothoracic Systems, Inc | Method for coronary artery bypass |
US6852075B1 (en) * | 1996-02-20 | 2005-02-08 | Cardiothoracic Systems, Inc. | Surgical devices for imposing a negative pressure to stabilize cardiac tissue during surgery |
US6969349B1 (en) * | 1997-09-17 | 2005-11-29 | Origin Medsystem, Inc. | Device to permit offpump beating heart coronary bypass surgery |
US6338712B2 (en) * | 1997-09-17 | 2002-01-15 | Origin Medsystems, Inc. | Device to permit offpump beating heart coronary bypass surgery |
US6390976B1 (en) | 1997-09-17 | 2002-05-21 | Origin Medsystems, Inc. | System to permit offpump beating heart coronary bypass surgery |
IT1305960B1 (it) * | 1998-05-11 | 2001-05-21 | Esaote Spa | Struttura di magnete in particolare per macchine per il rilevamentod'immagine in risonanza magnetica nucleare. |
JP2965968B1 (ja) | 1998-06-19 | 1999-10-18 | 住友特殊金属株式会社 | Mri用磁界発生装置、mri用磁界発生装置の梱包用部材、およびmri用磁界発生装置の梱包方法 |
US6147495A (en) * | 1998-08-28 | 2000-11-14 | Picker International, Inc. | Magnetic resonance imaging with integrated poleface features |
US6348275B1 (en) | 1998-11-06 | 2002-02-19 | Honeywell International Inc. | Bulk amorphous metal magnetic component |
US6346337B1 (en) | 1998-11-06 | 2002-02-12 | Honeywell International Inc. | Bulk amorphous metal magnetic component |
US6331363B1 (en) | 1998-11-06 | 2001-12-18 | Honeywell International Inc. | Bulk amorphous metal magnetic components |
US6377049B1 (en) * | 1999-02-12 | 2002-04-23 | General Electric Company | Residuum rare earth magnet |
JP3283242B2 (ja) * | 1999-06-21 | 2002-05-20 | ジーイー横河メディカルシステム株式会社 | 勾配コイルの製造方法、勾配コイルおよびmri装置 |
JP2001078982A (ja) * | 1999-09-16 | 2001-03-27 | Hitachi Medical Corp | 開放型磁石装置 |
US6198371B1 (en) * | 1999-11-09 | 2001-03-06 | General Electric Company | Open magnet with floor mount |
WO2001053847A1 (en) * | 2000-01-19 | 2001-07-26 | Millennium Technology Inc. | C-shaped magnetic resonance imaging system |
US6552639B2 (en) | 2000-04-28 | 2003-04-22 | Honeywell International Inc. | Bulk stamped amorphous metal magnetic component |
US6448772B1 (en) * | 2000-10-06 | 2002-09-10 | Sumitomo Special Metals Co., Ltd. | Magnetic field adjusting apparatus, magnetic field adjusting method and recording medium |
JP3987686B2 (ja) * | 2001-02-02 | 2007-10-10 | ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー | 静磁界補正方法およびmri装置 |
US6566991B1 (en) * | 2001-04-24 | 2003-05-20 | Fonar Corporation | Apparatus and method of shimming a magnetic field |
JP3878434B2 (ja) * | 2001-05-10 | 2007-02-07 | ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー | 磁気共鳴撮像用コイル構造体および磁気共鳴撮像装置 |
DE10147742B4 (de) | 2001-09-27 | 2005-05-19 | Siemens Ag | Magnetresonanzgerät mit einem horizontalen Grundmagnetfeld |
DE10147984B4 (de) * | 2001-09-28 | 2007-10-11 | Siemens Ag | Magnetresonanz-Untersuchungsgerät mit einer Einrichtung zur Erzeugung eines homogenen Magnetfeldes und Verfahren zur Verbesserung der Homogenität eines Magnetfeldes |
US7084632B2 (en) * | 2002-04-01 | 2006-08-01 | Shenyang Neusoft Bopu Nmr Tech Co., Ltd. | Permanent magnet for magnet resonance |
US6873239B2 (en) * | 2002-11-01 | 2005-03-29 | Metglas Inc. | Bulk laminated amorphous metal inductive device |
US6737951B1 (en) | 2002-11-01 | 2004-05-18 | Metglas, Inc. | Bulk amorphous metal inductive device |
US7242191B2 (en) * | 2002-11-25 | 2007-07-10 | General Electric Company | Cold mass support structure and helium vessel of actively shielded high field open MRI magnets |
US7235910B2 (en) | 2003-04-25 | 2007-06-26 | Metglas, Inc. | Selective etching process for cutting amorphous metal shapes and components made thereof |
US6788060B1 (en) | 2003-05-28 | 2004-09-07 | Ge Medical Systems Global Technology Co., Inc. | Imaging system with homogeneous magnetic field |
US7038565B1 (en) | 2003-06-09 | 2006-05-02 | Astronautics Corporation Of America | Rotating dipole permanent magnet assembly |
US7479104B2 (en) | 2003-07-08 | 2009-01-20 | Maquet Cardiovascular, Llc | Organ manipulator apparatus |
US6946941B2 (en) * | 2003-08-29 | 2005-09-20 | Astronautics Corporation Of America | Permanent magnet assembly |
US6778054B1 (en) * | 2003-10-03 | 2004-08-17 | General Electric Company | Methods and apparatus for passive shimming of magnets |
US7375518B2 (en) * | 2003-10-15 | 2008-05-20 | Hitachi Medical Corporation | Structure for reducing noise in magnetic resonance imaging apparatus |
JP2005168692A (ja) | 2003-12-10 | 2005-06-30 | Shin Etsu Chem Co Ltd | 永久磁石対向型磁気回路およびその磁場を調整する方法 |
US7179224B2 (en) * | 2003-12-30 | 2007-02-20 | Cardiothoracic Systems, Inc. | Organ manipulator and positioner and methods of using the same |
WO2005074608A2 (en) * | 2004-02-03 | 2005-08-18 | Astronautics Corporation Of America | Permanent magnet assembly |
ITSV20040016A1 (it) * | 2004-04-13 | 2004-07-13 | Esaote Spa | Macchina per risonanza magnetico nucleare |
JP3733441B1 (ja) | 2004-07-02 | 2006-01-11 | 株式会社日立製作所 | 磁気共鳴撮像装置及びその磁石装置 |
US7224167B2 (en) * | 2004-11-30 | 2007-05-29 | General Electric Company | Magnetic field generating apparatus and method for magnetic resonance imaging |
US20070088203A1 (en) * | 2005-05-25 | 2007-04-19 | Liming Lau | Surgical assemblies and methods for visualizing and performing surgical procedures in reduced-access surgical sites |
US8083664B2 (en) | 2005-05-25 | 2011-12-27 | Maquet Cardiovascular Llc | Surgical stabilizers and methods for use in reduced-access surgical sites |
US7199689B1 (en) * | 2006-01-09 | 2007-04-03 | Brk Wireless Company, Inc | High field NMR permanent magnetic structure |
US20070178383A1 (en) * | 2006-01-31 | 2007-08-02 | Viavattine Joseph J | Current collector |
WO2007112044A2 (en) | 2006-03-24 | 2007-10-04 | Medtronic, Inc | Implantable medical device |
US7295012B1 (en) * | 2006-04-28 | 2007-11-13 | General Electric Company | Methods and apparatus for MRI shim elements |
US20080103543A1 (en) * | 2006-10-31 | 2008-05-01 | Medtronic, Inc. | Implantable medical device with titanium alloy housing |
DE102007031745B4 (de) | 2007-07-06 | 2013-04-25 | Max Baermann Gmbh | Magnetsystem zur Erzeugung homogener Magnetfelder |
DE102008001896B4 (de) * | 2008-05-21 | 2023-02-02 | Robert Bosch Gmbh | Mikromechanisches Bauteil und Herstellungsverfahren für ein mikromechanisches Bauteil |
GB2468852A (en) * | 2009-03-23 | 2010-09-29 | Siemens Magnet Technology Ltd | Arrangements and Method for Shimming a Magnetic Field |
BR122020016721B8 (pt) | 2010-06-14 | 2022-04-12 | Maquet Cardiovascular Llc | Instrumentos cirúrgicos |
GB201114045D0 (en) * | 2011-08-15 | 2011-09-28 | Emscan Ltd | Magnet |
DE102017100178B4 (de) * | 2017-01-06 | 2019-02-14 | Windhorst Beteiligungsgesellschaft Mbh | Verfahren zum Abgleichen eines räumlichen Magnetfeldverlaufs eines Magnetfeldsystems an einen vorgegebenen räumlichen Magnetfeldverlauf und ein mithilfe des Verfahrens abgeglichenes Magnetfeldsystem |
BR112020021872A2 (pt) * | 2018-05-21 | 2021-01-26 | Hyperfine Research, Inc. | métodos e aparelhos de magneto b0 para um sistema de ressonância magnética |
US11462960B2 (en) * | 2019-12-02 | 2022-10-04 | Hiwin Mikrosystem Corp. | Rotor with first and second permanent magnets having support members and slots |
EP4019995B1 (de) * | 2020-12-22 | 2023-08-16 | Bruker BioSpin GmbH | Epr-spektrometer mit mindestens einem zumindest teilweise aus einem funktionsmaterial hergestellten polstück |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3566185D1 (en) * | 1984-04-11 | 1988-12-15 | Sumitomo Spec Metals | Magnetic field generating device for nmr-ct |
US4943774A (en) * | 1989-06-01 | 1990-07-24 | General Atomics | Magnetic field control apparatus |
US5134374A (en) * | 1989-06-01 | 1992-07-28 | Applied Superconetics | Magnetic field control apparatus |
JPH03131234A (ja) * | 1989-07-07 | 1991-06-04 | Sumitomo Special Metals Co Ltd | Mri用磁界発生装置 |
JP2533758Y2 (ja) * | 1989-12-13 | 1997-04-23 | 信越化学工業 株式会社 | 磁場発生装置 |
US5279484A (en) * | 1992-03-11 | 1994-01-18 | Loral Aerospace Corporation | Manned space vehicle with low-level hydrogen-oxygen-carbon dioxide propulsion unit |
JP2759185B2 (ja) * | 1992-09-04 | 1998-05-28 | 株式会社日立メディコ | 磁気共鳴イメージング装置 |
US5754085A (en) * | 1992-09-28 | 1998-05-19 | Fonar Corporation | Ferromagnetic yoke magnets for medical magnetic resonance studies |
US5495171A (en) * | 1993-01-19 | 1996-02-27 | Fonar Corporation | Eddy current control in NMR imaging systems |
GB2276946B (en) * | 1993-04-08 | 1997-04-02 | Oxford Magnet Tech | Improvements in or relating to MRI magnets |
-
1996
- 1996-08-27 US US08/703,450 patent/US5864275A/en not_active Expired - Lifetime
- 1996-08-27 EP EP04077874A patent/EP1515150A1/de not_active Ceased
- 1996-08-27 DE DE69613061T patent/DE69613061T2/de not_active Expired - Lifetime
- 1996-08-27 DE DE69633683T patent/DE69633683T2/de not_active Expired - Lifetime
- 1996-08-27 EP EP96401834A patent/EP0760484B1/de not_active Expired - Lifetime
- 1996-08-27 EP EP99402778A patent/EP0985934B1/de not_active Expired - Lifetime
-
1998
- 1998-12-07 US US09/206,291 patent/US5963117A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP1515150A1 (de) | 2005-03-16 |
US5963117A (en) | 1999-10-05 |
EP0760484B1 (de) | 2001-05-30 |
EP0985934B1 (de) | 2004-10-20 |
EP0760484A2 (de) | 1997-03-05 |
EP0985934A1 (de) | 2000-03-15 |
EP0760484A3 (de) | 1997-07-23 |
DE69613061T2 (de) | 2001-10-31 |
DE69633683T2 (de) | 2006-03-09 |
DE69613061D1 (de) | 2001-07-05 |
US5864275A (en) | 1999-01-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69633683D1 (de) | Magnetkreisanordnung mit einander gegenüberliegenden Permanentmagneten | |
DE69629419D1 (de) | Motor mit eingebauten Permanentmagneten | |
DE69402664D1 (de) | Dauermagnetläufer | |
NO974345D0 (no) | Dobbelt-utpreget permanentmagnetmaskin | |
DE69201588D1 (de) | Magnetplatte mit Permanentmagneten. | |
DE69404232D1 (de) | Magnetischer Träger mit Permanentmagneten | |
DE69501858D1 (de) | Magnet mit Polflächen | |
IT1282751B1 (it) | Caldaie a magneti permanenti | |
DE69807784D1 (de) | Elektromagnetische Antriebsvorrichtung mit beweglichem Permanentmagnet | |
BR9401480A (pt) | Motor elétrico de corrente contínua a ímã permanente | |
DE69113732D1 (de) | Magnetkreis mit Permanentmagnet. | |
DE69107193D1 (de) | Magnetplatte mit Permanentmagneten. | |
DE69703053D1 (de) | Elektromagnetischer Transdukter mit multipolaren Permanentmagneten | |
KR970008036U (ko) | 영구자석이 형성된 남비 | |
DE69519797D1 (de) | Magnetantrieb mit Permanentmagnet | |
KR970012165U (ko) | 영구자석이 형성된 수저 | |
BR9606514A (pt) | Magneto permanente | |
KR960026258U (ko) | 스피커의 더블 마그네트 자기회로 | |
KR970025482U (ko) | 영구자석 제조장치 | |
ATE132653T1 (de) | Permanentmagnetanordnung | |
DE69116172D1 (de) | Permanentmagnetanordnung | |
KR940018904U (ko) | 영구자석이 부착된 수저 세트 | |
IT240001Y1 (it) | Acceleratore molecolare con magneti permanenti | |
KR940009477U (ko) | 영구 자석이 내장된 공 | |
KR940027843U (ko) | 스피커 자기회로 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8328 | Change in the person/name/address of the agent |
Representative=s name: BOCKHORNI & KOLLEGEN, 80687 MUENCHEN |
|
8327 | Change in the person/name/address of the patent owner |
Owner name: GE HEALTHCARE JAPAN CORP., HINO, TOKYO, JP Owner name: SHIN-ETSU CHEMICAL CO., LTD., TOKIO/TOKYO, JP |