CA2982449A1 - Magnetic coil power methods and apparatus - Google Patents
Magnetic coil power methods and apparatus Download PDFInfo
- Publication number
- CA2982449A1 CA2982449A1 CA2982449A CA2982449A CA2982449A1 CA 2982449 A1 CA2982449 A1 CA 2982449A1 CA 2982449 A CA2982449 A CA 2982449A CA 2982449 A CA2982449 A CA 2982449A CA 2982449 A1 CA2982449 A1 CA 2982449A1
- Authority
- CA
- Canada
- Prior art keywords
- power
- linear amplifier
- gradient coil
- voltage
- output
- 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.)
- Abandoned
Links
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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
- G01R33/385—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using gradient magnetic field coils
- G01R33/3852—Gradient amplifiers; means for controlling the application of a gradient magnetic field to the sample, e.g. a gradient signal synthesizer
-
- 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
-
- 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
-
- 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
- G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
- G01R33/46—NMR spectroscopy
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is DC
- G05F1/461—Regulating voltage or current wherein the variable actually regulated by the final control device is DC using an operational amplifier as final control device
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/45—Differential amplifiers
- H03F3/45071—Differential amplifiers with semiconductor devices only
- H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
- H03F3/45475—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using IC blocks as the active amplifying circuit
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/45—Indexing scheme relating to differential amplifiers
- H03F2203/45528—Indexing scheme relating to differential amplifiers the FBC comprising one or more passive resistors and being coupled between the LC and the IC
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Power Engineering (AREA)
- Spectroscopy & Molecular Physics (AREA)
- High Energy & Nuclear Physics (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201562146609P | 2015-04-13 | 2015-04-13 | |
| US62/146,609 | 2015-04-13 | ||
| PCT/US2016/027215 WO2016168249A1 (en) | 2015-04-13 | 2016-04-13 | Magnetic coil power methods and apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2982449A1 true CA2982449A1 (en) | 2016-10-20 |
Family
ID=57111600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2982449A Abandoned CA2982449A1 (en) | 2015-04-13 | 2016-04-13 | Magnetic coil power methods and apparatus |
Country Status (13)
| Country | Link |
|---|---|
| US (5) | US10281540B2 (enExample) |
| EP (2) | EP3283895A4 (enExample) |
| JP (1) | JP6800164B2 (enExample) |
| KR (1) | KR20180019518A (enExample) |
| CN (1) | CN107533118B (enExample) |
| AU (1) | AU2016250077B2 (enExample) |
| BR (1) | BR112017021999A2 (enExample) |
| CA (1) | CA2982449A1 (enExample) |
| HK (1) | HK1251301A1 (enExample) |
| IL (1) | IL254956A0 (enExample) |
| MX (1) | MX378464B (enExample) |
| TW (1) | TWI710782B (enExample) |
| WO (1) | WO2016168249A1 (enExample) |
Families Citing this family (40)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111896903A (zh) | 2014-09-05 | 2020-11-06 | 海珀菲纳研究股份有限公司 | 噪声抑制方法和设备 |
| WO2016077417A1 (en) | 2014-11-11 | 2016-05-19 | Hyperfine Research, Inc. | Low field magnetic resonance methods and apparatus |
| CA2967337C (en) | 2014-11-11 | 2022-05-10 | Hyperfine Research, Inc. | Pulse sequences for low field magnetic resonance |
| US10281540B2 (en) | 2015-04-13 | 2019-05-07 | Hyperfine Research, Inc. | Magnetic coil power methods and apparatus |
| HK1252007A1 (zh) | 2015-05-12 | 2019-05-10 | Hyperfine, Inc. | 射频线圈方法和装置 |
| CA3018183C (en) | 2016-03-22 | 2021-08-24 | Hyperfine Research, Inc. | Methods and apparatus for magnetic field shimming |
| TWI685668B (zh) | 2016-09-29 | 2020-02-21 | 美商超精細研究股份有限公司 | 磁共振成像系統，以及搭配該磁共振成像系統使用之調諧系統 |
| EP3309811B1 (de) * | 2016-10-11 | 2018-12-19 | Siemens Aktiengesellschaft | Schütz mit einer elektronischen spulenansteuerung |
| MX2019005955A (es) | 2016-11-22 | 2019-07-10 | Hyperfine Res Inc | Sistemas y metodos para deteccion automatizada en imagenes de resonancia magnetica. |
| US10627464B2 (en) | 2016-11-22 | 2020-04-21 | Hyperfine Research, Inc. | Low-field magnetic resonance imaging methods and apparatus |
| US10585153B2 (en) | 2016-11-22 | 2020-03-10 | Hyperfine Research, Inc. | Rotatable magnet methods and apparatus for a magnetic resonance imaging system |
| US10539637B2 (en) | 2016-11-22 | 2020-01-21 | Hyperfine Research, Inc. | Portable magnetic resonance imaging methods and apparatus |
| JP7154957B2 (ja) * | 2017-11-08 | 2022-10-18 | キヤノンメディカルシステムズ株式会社 | 磁気共鳴イメージング装置および電力供給方法 |
| AU2019256553A1 (en) | 2018-04-20 | 2020-10-22 | Hyperfine Operations, Inc. | Deployable guard for portable magnetic resonance imaging devices |
| KR20210013563A (ko) | 2018-05-21 | 2021-02-04 | 하이퍼파인 리서치, 인크. | 자기 공명 이미징 시스템을 위한 b0 자석 방법들 및 장치들 |
| CA3099068A1 (en) | 2018-05-21 | 2019-11-28 | Hyperfine Research, Inc. | Radio-frequency coil signal chain for a low-field mri system |
| TW202015621A (zh) | 2018-07-19 | 2020-05-01 | 美商超精細研究股份有限公司 | 在磁共振成像中患者定位之方法及設備 |
| CN120370238A (zh) | 2018-07-30 | 2025-07-25 | 海珀菲纳股份有限公司 | 用于磁共振图像重建的深度学习技术的系统、方法、存储介质以及磁共振成像系统 |
| TW202012951A (zh) | 2018-07-31 | 2020-04-01 | 美商超精細研究股份有限公司 | 低場漫射加權成像 |
| US11789104B2 (en) | 2018-08-15 | 2023-10-17 | Hyperfine Operations, Inc. | Deep learning techniques for suppressing artefacts in magnetic resonance images |
| EP3899565A2 (en) | 2018-12-19 | 2021-10-27 | Hyperfine, Inc. | System and methods for grounding patients during magnetic resonance imaging |
| CN113498479B (zh) | 2018-12-28 | 2025-07-15 | 海珀菲纳股份有限公司 | 校正磁共振成像中的磁滞 |
| KR102258269B1 (ko) * | 2019-03-07 | 2021-05-31 | 주식회사 지에스인스텍 | 자기공명영상장치의 무선주파수 전력증폭장치 |
| US11553853B2 (en) | 2019-03-12 | 2023-01-17 | Hyperfine Operations, Inc. | Systems and methods for magnetic resonance imaging of infants |
| US11324418B2 (en) | 2019-03-14 | 2022-05-10 | Hyperfine Operations, Inc. | Multi-coil magnetic resonance imaging using deep learning |
| KR20220005492A (ko) | 2019-04-26 | 2022-01-13 | 하이퍼파인, 인크. | 자기 공명 영상 시스템의 동적 제어를 위한 기술 |
| KR20220007876A (ko) | 2019-05-07 | 2022-01-19 | 하이퍼파인, 인크. | 유아의 자기 공명 이미징을 위한 시스템, 디바이스 및 방법 |
| WO2021030722A1 (en) | 2019-08-15 | 2021-02-18 | Hyperfine Research, Inc. | Eddy current mitigation systems and methods |
| WO2021071938A2 (en) | 2019-10-08 | 2021-04-15 | Hyperfine Research, Inc. | System and methods for detecting electromagnetic interference in patients during magnetic resonance imaging |
| US20210124001A1 (en) | 2019-10-25 | 2021-04-29 | Hyperfine Research, Inc. | Systems and methods for detecting patient motion during magnetic resonance imaging |
| EP4644938A2 (en) | 2019-10-25 | 2025-11-05 | Hyperfine Operations, Inc. | Artefact reduction in magnetic resonance imaging |
| US11510588B2 (en) | 2019-11-27 | 2022-11-29 | Hyperfine Operations, Inc. | Techniques for noise suppression in an environment of a magnetic resonance imaging system |
| US11415651B2 (en) | 2019-12-10 | 2022-08-16 | Hyperfine Operations, Inc. | Low noise gradient amplification components for MR systems |
| WO2021119063A1 (en) | 2019-12-10 | 2021-06-17 | Hyperfine Research, Inc. | Ferromagnetic frame for magnetic resonance imaging |
| USD912822S1 (en) | 2019-12-10 | 2021-03-09 | Hyperfine Research, Inc. | Frame for magnets in magnetic resonance imaging |
| CN115552269A (zh) | 2019-12-10 | 2022-12-30 | 海珀菲纳运营有限公司 | 用于磁共振成像的具有非铁磁框架的永磁体装配件 |
| USD932014S1 (en) | 2019-12-10 | 2021-09-28 | Hyperfine, Inc. | Frame for magnets in magnetic resonance imaging |
| US11846691B2 (en) * | 2021-03-04 | 2023-12-19 | Hyperfine Operations, Inc. | Systems and methods for performing magnetic resonance imaging with reduced operator interaction |
| CN112671226B (zh) * | 2021-03-22 | 2021-06-29 | 宜宾听点科技有限公司 | 一种功放电源电压控制方法及系统 |
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| CA2967337C (en) | 2014-11-11 | 2022-05-10 | Hyperfine Research, Inc. | Pulse sequences for low field magnetic resonance |
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| HK1252007A1 (zh) | 2015-05-12 | 2019-05-10 | Hyperfine, Inc. | 射频线圈方法和装置 |
| JP6611589B2 (ja) * | 2015-12-17 | 2019-11-27 | キヤノンメディカルシステムズ株式会社 | 磁気共鳴イメージング装置 |
| CA3018183C (en) | 2016-03-22 | 2021-08-24 | Hyperfine Research, Inc. | Methods and apparatus for magnetic field shimming |
| TWI685668B (zh) | 2016-09-29 | 2020-02-21 | 美商超精細研究股份有限公司 | 磁共振成像系統，以及搭配該磁共振成像系統使用之調諧系統 |
| US10627464B2 (en) | 2016-11-22 | 2020-04-21 | Hyperfine Research, Inc. | Low-field magnetic resonance imaging methods and apparatus |
| US10539637B2 (en) | 2016-11-22 | 2020-01-21 | Hyperfine Research, Inc. | Portable magnetic resonance imaging methods and apparatus |
| US10585153B2 (en) | 2016-11-22 | 2020-03-10 | Hyperfine Research, Inc. | Rotatable magnet methods and apparatus for a magnetic resonance imaging system |
| MX2019005955A (es) | 2016-11-22 | 2019-07-10 | Hyperfine Res Inc | Sistemas y metodos para deteccion automatizada en imagenes de resonancia magnetica. |
| AU2019256553A1 (en) | 2018-04-20 | 2020-10-22 | Hyperfine Operations, Inc. | Deployable guard for portable magnetic resonance imaging devices |
| KR20210013563A (ko) | 2018-05-21 | 2021-02-04 | 하이퍼파인 리서치, 인크. | 자기 공명 이미징 시스템을 위한 b0 자석 방법들 및 장치들 |
| CA3099068A1 (en) | 2018-05-21 | 2019-11-28 | Hyperfine Research, Inc. | Radio-frequency coil signal chain for a low-field mri system |
| TW202015621A (zh) | 2018-07-19 | 2020-05-01 | 美商超精細研究股份有限公司 | 在磁共振成像中患者定位之方法及設備 |
| CN120370238A (zh) | 2018-07-30 | 2025-07-25 | 海珀菲纳股份有限公司 | 用于磁共振图像重建的深度学习技术的系统、方法、存储介质以及磁共振成像系统 |
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| TW202012951A (zh) | 2018-07-31 | 2020-04-01 | 美商超精細研究股份有限公司 | 低場漫射加權成像 |
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| TW201640135A (zh) | 2016-11-16 |
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| US20190227136A1 (en) | 2019-07-25 |
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