DE69428765D1 - Vorrichtung zur Erzeugung eines Magnetfeldes für die Bildgebung mittels magnetischer Resonanz - Google Patents
Vorrichtung zur Erzeugung eines Magnetfeldes für die Bildgebung mittels magnetischer ResonanzInfo
- Publication number
- DE69428765D1 DE69428765D1 DE69428765T DE69428765T DE69428765D1 DE 69428765 D1 DE69428765 D1 DE 69428765D1 DE 69428765 T DE69428765 T DE 69428765T DE 69428765 T DE69428765 T DE 69428765T DE 69428765 D1 DE69428765 D1 DE 69428765D1
- Authority
- DE
- Germany
- Prior art keywords
- imaging
- generating
- magnetic field
- magnetic resonance
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/02—Permanent magnets [PM]
- H01F7/0273—Magnetic circuits with PM for magnetic field generation
- H01F7/0278—Magnetic circuits with PM for magnetic field generation for generating uniform fields, focusing, deflecting electrically charged particles
-
- 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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electromagnetism (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Heart & Thoracic Surgery (AREA)
- Public Health (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Veterinary Medicine (AREA)
- Pathology (AREA)
- Biophysics (AREA)
- Radiology & Medical Imaging (AREA)
- High Energy & Nuclear Physics (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP35028993A JP3150248B2 (ja) | 1993-12-27 | 1993-12-27 | Mri用磁界発生装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69428765D1 true DE69428765D1 (de) | 2001-11-29 |
DE69428765T2 DE69428765T2 (de) | 2002-05-08 |
Family
ID=18409490
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69428765T Expired - Fee Related DE69428765T2 (de) | 1993-12-27 | 1994-12-16 | Vorrichtung zur Erzeugung eines Magnetfeldes für die Bildgebung mittels magnetischer Resonanz |
Country Status (6)
Country | Link |
---|---|
US (1) | US5557205A (de) |
EP (1) | EP0660129B1 (de) |
JP (1) | JP3150248B2 (de) |
KR (1) | KR0135210B1 (de) |
CN (1) | CN1051375C (de) |
DE (1) | DE69428765T2 (de) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6265959B1 (en) * | 1998-04-29 | 2001-07-24 | New York University | Open unipolar magnetic structure |
US6351786B2 (en) | 1998-08-24 | 2002-02-26 | Racal Instr Inc | VXI backplane system improvements and methods |
US6377049B1 (en) | 1999-02-12 | 2002-04-23 | General Electric Company | Residuum rare earth magnet |
US6577125B2 (en) * | 2000-12-18 | 2003-06-10 | Halliburton Energy Services, Inc. | Temperature compensated magnetic field apparatus for NMR measurements |
US6518867B2 (en) | 2001-04-03 | 2003-02-11 | General Electric Company | Permanent magnet assembly and method of making thereof |
US6662434B2 (en) * | 2001-04-03 | 2003-12-16 | General Electric Company | Method and apparatus for magnetizing a permanent magnet |
CN1325019C (zh) * | 2002-02-15 | 2007-07-11 | 株式会社新王磁材 | 磁场产生装置及其制造方法 |
EP1642156B1 (de) | 2003-05-02 | 2020-03-04 | Halliburton Energy Services, Inc. | Systeme und verfahren zum nmr-logging |
BRPI0414998A (pt) | 2003-10-03 | 2006-11-21 | Halliburton Energy Serv Inc | métodos para identificar gás em uma formação geológica, para analisar formações geológicas, e de rmn para analisar formações geológicas, e sistema |
US7019609B2 (en) * | 2004-06-21 | 2006-03-28 | General Electric Company | Magnetic field generating device and method of shimming thereof |
CN100415162C (zh) * | 2005-03-09 | 2008-09-03 | Ge医疗系统环球技术有限公司 | 磁体系统和磁共振成像系统 |
US7365623B2 (en) * | 2005-06-10 | 2008-04-29 | Beijing Taijie Yanyuan Medical Engineering Technical Co., Ltd. | Permanent magnet, magnetic device for use in MRI including the same, and manufacturing processes thereof |
US7199689B1 (en) * | 2006-01-09 | 2007-04-03 | Brk Wireless Company, Inc | High field NMR permanent magnetic structure |
WO2008078246A2 (de) * | 2006-12-20 | 2008-07-03 | Philips Intellectual Property & Standards Gmbh | Arrangement and method for influencing and/or detecting magnetic particles in a region of action |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL8402250A (nl) * | 1984-07-17 | 1986-02-17 | Philips Nv | Kernspin resonantie apparaat met een rechthoekig permanent magnetische magneet. |
JPH079845B2 (ja) * | 1986-01-31 | 1995-02-01 | 富士電機株式会社 | 永久磁石形均一磁場マグネット |
US5162771A (en) * | 1990-10-01 | 1992-11-10 | New York University | Highly efficient yoked permanent magnet |
JPH05211104A (ja) * | 1991-12-05 | 1993-08-20 | Hitachi Medical Corp | 磁気共鳴イメージング装置用静磁場発生装置 |
US5621324A (en) * | 1992-03-18 | 1997-04-15 | Sumitomo Special Metals Company Limited | Magnetic field generator for MRI |
CA2141188A1 (en) * | 1992-07-27 | 1994-02-03 | Manlio G. Abele | High field magnets for medical applications |
-
1993
- 1993-12-27 JP JP35028993A patent/JP3150248B2/ja not_active Expired - Fee Related
-
1994
- 1994-12-08 US US08/355,163 patent/US5557205A/en not_active Expired - Lifetime
- 1994-12-16 EP EP94309436A patent/EP0660129B1/de not_active Expired - Lifetime
- 1994-12-16 DE DE69428765T patent/DE69428765T2/de not_active Expired - Fee Related
- 1994-12-24 KR KR1019940036526A patent/KR0135210B1/ko not_active IP Right Cessation
- 1994-12-26 CN CN94113420A patent/CN1051375C/zh not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0660129A1 (de) | 1995-06-28 |
DE69428765T2 (de) | 2002-05-08 |
KR0135210B1 (ko) | 1998-04-22 |
US5557205A (en) | 1996-09-17 |
KR950016663A (ko) | 1995-07-20 |
JP3150248B2 (ja) | 2001-03-26 |
CN1116311A (zh) | 1996-02-07 |
EP0660129B1 (de) | 2001-10-24 |
CN1051375C (zh) | 2000-04-12 |
JPH07201557A (ja) | 1995-08-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |