DE60226834D1 - Offener Hochfeld-MRI-Magnet mit reduzierter Vibration - Google Patents
Offener Hochfeld-MRI-Magnet mit reduzierter VibrationInfo
- Publication number
- DE60226834D1 DE60226834D1 DE60226834T DE60226834T DE60226834D1 DE 60226834 D1 DE60226834 D1 DE 60226834D1 DE 60226834 T DE60226834 T DE 60226834T DE 60226834 T DE60226834 T DE 60226834T DE 60226834 D1 DE60226834 D1 DE 60226834D1
- Authority
- DE
- Germany
- Prior art keywords
- high field
- field mri
- open high
- reduced vibration
- mri magnet
- 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
- G01R33/3806—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
- G01R33/385—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using gradient magnetic field coils
- G01R33/3854—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using gradient magnetic field coils means for active and/or passive vibration damping or acoustical noise suppression in gradient magnet coil systems
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/683,415 US6504372B1 (en) | 2001-12-24 | 2001-12-24 | High field open magnetic resonance magnet with reduced vibration |
Publications (1)
Publication Number | Publication Date |
---|---|
DE60226834D1 true DE60226834D1 (de) | 2008-07-10 |
Family
ID=24743953
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE60226834T Expired - Lifetime DE60226834D1 (de) | 2001-12-24 | 2002-12-23 | Offener Hochfeld-MRI-Magnet mit reduzierter Vibration |
Country Status (4)
Country | Link |
---|---|
US (1) | US6504372B1 (de) |
EP (1) | EP1324064B1 (de) |
JP (1) | JP4152737B2 (de) |
DE (1) | DE60226834D1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002071942A1 (fr) * | 2001-03-14 | 2002-09-19 | Hitachi Medical Corporation | Appareil d'imagerie par resonance magnetique et generateur de champ magnetique statique associe |
JP3790971B2 (ja) | 2004-06-23 | 2006-06-28 | 株式会社日立製作所 | 磁気共鳴イメージング装置 |
JP4639763B2 (ja) * | 2004-11-12 | 2011-02-23 | 三菱電機株式会社 | 磁気共鳴イメージング装置 |
JP4866213B2 (ja) * | 2006-11-15 | 2012-02-01 | 株式会社日立製作所 | 超電導磁石装置および磁気共鳴イメージング装置 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IL106779A0 (en) * | 1992-09-11 | 1993-12-08 | Magna Lab Inc | Permanent magnetic structure |
US5754085A (en) * | 1992-09-28 | 1998-05-19 | Fonar Corporation | Ferromagnetic yoke magnets for medical magnetic resonance studies |
US5381122A (en) * | 1994-01-14 | 1995-01-10 | General Electric Company | Open MRI magnet having a support structure |
JP2000139874A (ja) * | 1998-09-02 | 2000-05-23 | Sumitomo Special Metals Co Ltd | Mri用磁界発生装置 |
US6169404B1 (en) * | 1998-12-18 | 2001-01-02 | General Electric Company | Vibration cancellation for C-shaped superconducting magnet |
US6172588B1 (en) | 1999-04-23 | 2001-01-09 | General Electric Company | Apparatus and method for a superconductive magnet with pole piece |
US6201462B1 (en) * | 1999-11-09 | 2001-03-13 | General Electric Company | Open superconductive magnet having a cryocooler coldhead |
US6166617A (en) * | 1999-11-09 | 2000-12-26 | General Electric Company | Pole piece assembly and open magnet having same |
-
2001
- 2001-12-24 US US09/683,415 patent/US6504372B1/en not_active Expired - Fee Related
-
2002
- 2002-12-20 JP JP2002369123A patent/JP4152737B2/ja not_active Expired - Fee Related
- 2002-12-23 DE DE60226834T patent/DE60226834D1/de not_active Expired - Lifetime
- 2002-12-23 EP EP02258880A patent/EP1324064B1/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2003220050A (ja) | 2003-08-05 |
EP1324064B1 (de) | 2008-05-28 |
EP1324064A1 (de) | 2003-07-02 |
US6504372B1 (en) | 2003-01-07 |
JP4152737B2 (ja) | 2008-09-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |