NL1024853C2 - Koude-massasysteemstructuur en heliumvat van actief afgeschermde open MRI-magneet met een veld van hoog vermogen. - Google Patents
Koude-massasysteemstructuur en heliumvat van actief afgeschermde open MRI-magneet met een veld van hoog vermogen. Download PDFInfo
- Publication number
- NL1024853C2 NL1024853C2 NL1024853A NL1024853A NL1024853C2 NL 1024853 C2 NL1024853 C2 NL 1024853C2 NL 1024853 A NL1024853 A NL 1024853A NL 1024853 A NL1024853 A NL 1024853A NL 1024853 C2 NL1024853 C2 NL 1024853C2
- Authority
- NL
- Netherlands
- Prior art keywords
- coils
- mri device
- magnetic field
- volume
- coil
- Prior art date
Links
- 229910052734 helium Inorganic materials 0.000 title description 3
- 239000001307 helium Substances 0.000 title description 3
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 title description 3
- 230000005291 magnetic effect Effects 0.000 claims description 54
- 238000003384 imaging method Methods 0.000 claims description 22
- 230000003993 interaction Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 238000007493 shaping process Methods 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 239000003733 fiber-reinforced composite Substances 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 238000002595 magnetic resonance imaging Methods 0.000 claims 28
- 230000005294 ferromagnetic effect Effects 0.000 claims 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 18
- 238000004519 manufacturing process Methods 0.000 description 11
- 229910052742 iron Inorganic materials 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000000712 assembly Effects 0.000 description 4
- 238000000429 assembly Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 125000006850 spacer group Chemical group 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 206010009244 Claustrophobia Diseases 0.000 description 1
- 102000016751 Fringe-like Human genes 0.000 description 1
- 108050006300 Fringe-like Proteins 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 208000019899 phobic disease Diseases 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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
- G01R33/387—Compensation of inhomogeneities
- G01R33/3875—Compensation of inhomogeneities using correction coil assemblies, e.g. active shimming
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F6/00—Superconducting magnets; Superconducting coils
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US6584802 | 2002-11-25 | ||
| US10/065,848 US7242191B2 (en) | 2002-11-25 | 2002-11-25 | Cold mass support structure and helium vessel of actively shielded high field open MRI magnets |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NL1024853A1 NL1024853A1 (nl) | 2004-05-26 |
| NL1024853C2 true NL1024853C2 (nl) | 2005-01-04 |
Family
ID=29778430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL1024853A NL1024853C2 (nl) | 2002-11-25 | 2003-11-24 | Koude-massasysteemstructuur en heliumvat van actief afgeschermde open MRI-magneet met een veld van hoog vermogen. |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US7242191B2 (https=) |
| JP (1) | JP2004174243A (https=) |
| CN (1) | CN100504431C (https=) |
| DE (1) | DE10352647A1 (https=) |
| GB (1) | GB2397381B (https=) |
| NL (1) | NL1024853C2 (https=) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| US7141974B2 (en) * | 2003-08-25 | 2006-11-28 | William A Edelstein | Active-passive electromagnetic shielding to reduce MRI acoustic noise |
| EP1751570A1 (en) * | 2004-05-14 | 2007-02-14 | Koninklijke Philips Electronics N.V. | Short element tem coil for ultra-high field mr |
| US20060017536A1 (en) * | 2004-07-26 | 2006-01-26 | General Electric Company | Systems, methods and apparatus for hybrid shielding in a magnetic resonance imaging system |
| JP4541092B2 (ja) * | 2004-10-04 | 2010-09-08 | 株式会社日立製作所 | 磁気共鳴イメージング装置の超伝導磁石装置 |
| JP4749699B2 (ja) * | 2004-11-17 | 2011-08-17 | 株式会社日立メディコ | 磁気共鳴イメージング装置 |
| JP4705528B2 (ja) * | 2006-01-05 | 2011-06-22 | 株式会社日立製作所 | 超伝導磁石装置および磁気共鳴イメージング装置 |
| JP4856430B2 (ja) * | 2006-01-23 | 2012-01-18 | 株式会社日立製作所 | 電磁石装置 |
| US7375526B2 (en) * | 2006-10-20 | 2008-05-20 | Edelstein William A | Active-passive electromagnetic shielding to reduce MRI acoustic noise |
| JP4921935B2 (ja) * | 2006-11-22 | 2012-04-25 | 株式会社日立製作所 | 電磁石装置及び磁気共鳴撮像装置 |
| US20100219833A1 (en) * | 2007-07-26 | 2010-09-02 | Emscan Limited | Magnet assembly |
| DE102008053845B4 (de) * | 2008-10-30 | 2011-01-20 | Siemens Aktiengesellschaft | Profilrahmenstruktur für eine Magnetresonanzeinrichtung |
| US7924010B2 (en) * | 2009-03-25 | 2011-04-12 | General Electric Company | Apparatus for supporting and method for forming a support for a magnetic resonance imaging (MRI) magnet |
| JP5111691B1 (ja) * | 2012-04-20 | 2013-01-09 | 三菱電機株式会社 | 超電導マグネットおよびその調整方法 |
| GB2521470B (en) * | 2013-12-20 | 2015-11-11 | Siemens Plc | Support structure for cylindrical superconducting coil structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994006034A1 (en) * | 1992-09-08 | 1994-03-17 | General Electric Company | Frustoconical magnet for magnetic resonance imaging |
| US5485088A (en) * | 1994-05-13 | 1996-01-16 | Bruker Analytische Messtechnik Gmbh | Therapy tomograph with homogeneity device |
| US5565831A (en) * | 1995-10-23 | 1996-10-15 | General Electric Company | Shielded and open MRI magnet |
| US6157279A (en) * | 1998-02-19 | 2000-12-05 | General Electric Company | Open magnet having shielding |
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| DE3907927A1 (de) * | 1989-03-11 | 1990-09-20 | Bruker Analytische Messtechnik | Magnetsystem |
| DE3914243A1 (de) * | 1989-04-29 | 1990-10-31 | Bruker Analytische Messtechnik | Magnetsystem mit supraleitenden feldspulen |
| US5134374A (en) * | 1989-06-01 | 1992-07-28 | Applied Superconetics | Magnetic field control apparatus |
| EP0525246A1 (de) * | 1991-08-01 | 1993-02-03 | Siemens Aktiengesellschaft | Magneteinrichtung mit einem ein magnetisches Streufeld erzeugenden Jochkörper |
| US5315276A (en) * | 1992-01-29 | 1994-05-24 | Hewlett Packard Company | Compact superconducting magnet for magnetic resonance imaging |
| US5359310A (en) * | 1992-04-15 | 1994-10-25 | Houston Advanced Research Center | Ultrashort cylindrical shielded electromagnet for magnetic resonance imaging |
| US6201394B1 (en) * | 1992-12-18 | 2001-03-13 | Fonar Corporation | MRI apparatus |
| US5378988A (en) * | 1993-01-22 | 1995-01-03 | Pulyer; Yuly M. | MRI system having high field strength open access magnet |
| US5428292A (en) * | 1994-04-29 | 1995-06-27 | General Electric Company | Pancake MRI magnet with modified imaging volume |
| US5696476A (en) * | 1995-07-31 | 1997-12-09 | General Electric Company | Open architecture magnetic resonance imaging superconducting magnet assembly |
| DE69633683T2 (de) * | 1995-08-28 | 2006-03-09 | Shin-Etsu Chemical Co., Ltd. | Magnetkreisanordnung mit einander gegenüberliegenden Permanentmagneten |
| GB2311375B (en) * | 1996-03-20 | 2000-08-23 | Oxford Magnet Tech | Improvements in or relating to MRI magnets |
| WO1999015914A1 (en) * | 1997-09-25 | 1999-04-01 | Odin Technologies Ltd. | Magnetic apparatus for mri |
| JP2002034947A (ja) * | 1997-10-24 | 2002-02-05 | Hitachi Ltd | マグネット装置、および、これを用いたｍｒｉ装置 |
| US6002255A (en) * | 1997-11-20 | 1999-12-14 | Brigham & Women's Hospital | Planar open magnet MRI system having active target field shimming |
| JP4247948B2 (ja) * | 1997-12-01 | 2009-04-02 | 株式会社日立メディコ | 磁石装置及びｍｒｉ装置 |
| US5883558A (en) * | 1998-02-19 | 1999-03-16 | General Electric Company | Open superconductive magnet having shielding |
| US5874882A (en) * | 1998-02-19 | 1999-02-23 | General Electric Company | Open and shielded superconductive magnet |
| US5874880A (en) * | 1998-03-05 | 1999-02-23 | General Electric Company | Shielded and open superconductive magnet |
| US6078234A (en) * | 1998-07-09 | 2000-06-20 | General Electric Company | Helium vessel for open architecture magnetic resonance imaging superconducting magnet |
| US6218838B1 (en) * | 1998-08-28 | 2001-04-17 | Picker International, Inc. | MRI magnet with high homogeneity, patient access, and low forces on the driver coils |
| US6150819A (en) * | 1998-11-24 | 2000-11-21 | General Electric Company | Laminate tiles for an MRI system and method and apparatus for manufacturing the laminate tiles |
| US6259252B1 (en) * | 1998-11-24 | 2001-07-10 | General Electric Company | Laminate tile pole piece for an MRI, a method manufacturing the pole piece and a mold bonding pole piece tiles |
| US6011454A (en) * | 1998-12-30 | 2000-01-04 | Huang; Xianrui | Superconducting magnet suspension assembly |
| US6172588B1 (en) * | 1999-04-23 | 2001-01-09 | General Electric Company | Apparatus and method for a superconductive magnet with pole piece |
| GB2355798B (en) * | 1999-10-26 | 2004-05-19 | Oxford Magnet Tech | Improved magnetic coil former |
| GB2355800B (en) * | 1999-10-29 | 2004-10-27 | Oxford Magnet Tech | Improved magnet |
| US6166617A (en) * | 1999-11-09 | 2000-12-26 | General Electric Company | Pole piece assembly and open magnet having same |
| US6150912A (en) * | 1999-11-15 | 2000-11-21 | General Electric Company | Open architecture superconducting magnet helium vessel structure |
| US6147579A (en) * | 1999-11-17 | 2000-11-14 | General Electric Company | Superconducting magnet non-uniform thermal insulation blankets |
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| WO2002027346A1 (en) * | 2000-09-26 | 2002-04-04 | Koninklijke Philips Electronics N.V. | Vertical field type mri apparatus with a conical gradient coil situated in the main magnet |
| US6570475B1 (en) * | 2000-11-20 | 2003-05-27 | Intermagnetics General Corp. | Split type magnetic resonance imaging magnet |
| US6909348B2 (en) * | 2000-12-05 | 2005-06-21 | Hitachi, Ltd. | Low-leakage magnetic-field magnet and shield coil assembly |
| US6504461B2 (en) * | 2001-03-26 | 2003-01-07 | General Electric Company | Open magnet with recessed field shaping coils |
| US6717408B2 (en) * | 2001-04-05 | 2004-04-06 | Intermagnetics General Corporation | Support structure for open MRI apparatus |
| AU2002353408A1 (en) * | 2001-12-21 | 2003-07-09 | Koninklijke Philips Electronics N.V. | Cooling of a mri system |
| 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 |
-
2002
- 2002-11-25 US US10/065,848 patent/US7242191B2/en not_active Expired - Fee Related
-
2003
- 2003-11-11 DE DE10352647A patent/DE10352647A1/de not_active Withdrawn
- 2003-11-19 GB GB0326962A patent/GB2397381B/en not_active Expired - Fee Related
- 2003-11-21 JP JP2003391555A patent/JP2004174243A/ja active Pending
- 2003-11-24 NL NL1024853A patent/NL1024853C2/nl not_active IP Right Cessation
- 2003-11-25 CN CNB2003101207330A patent/CN100504431C/zh not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994006034A1 (en) * | 1992-09-08 | 1994-03-17 | General Electric Company | Frustoconical magnet for magnetic resonance imaging |
| US5485088A (en) * | 1994-05-13 | 1996-01-16 | Bruker Analytische Messtechnik Gmbh | Therapy tomograph with homogeneity device |
| US5565831A (en) * | 1995-10-23 | 1996-10-15 | General Electric Company | Shielded and open MRI magnet |
| US6157279A (en) * | 1998-02-19 | 2000-12-05 | General Electric Company | Open magnet having shielding |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1523369A (zh) | 2004-08-25 |
| GB0326962D0 (en) | 2003-12-24 |
| DE10352647A1 (de) | 2004-06-03 |
| JP2004174243A (ja) | 2004-06-24 |
| GB2397381B (en) | 2007-06-27 |
| US20040100261A1 (en) | 2004-05-27 |
| CN100504431C (zh) | 2009-06-24 |
| NL1024853A1 (nl) | 2004-05-26 |
| US7242191B2 (en) | 2007-07-10 |
| GB2397381A (en) | 2004-07-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AD1A | A request for search or an international type search has been filed | ||
| RD2N | Patents in respect of which a decision has been taken or a report has been made (novelty report) |
Effective date: 20040901 |
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| PD2B | A search report has been drawn up | ||
| V1 | Lapsed because of non-payment of the annual fee |
Effective date: 20140601 |