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1. 发明授权

US10495712B2 Low field magnetic resonance imaging methods and apparatus 有权
公开(公告)号：US10495712B2
公开(公告)日：2019-12-03
申请号：US15721340
申请日：2017-09-29
申请人： Hyperfine Research, Inc.
发明人： Jonathan M. Rothberg , Matthew Scot Rosen , Gregory L. Charvat , William J. Mileski , Todd Rearick , Michael Stephen Poole , Keith G. Fife
IPC分类号： G01R33/56 , G01R33/36 , G01R33/38 , G01R33/34 , G01R33/385 , G01R33/28 , G01R33/565 , G01R33/44 , G01R33/58 , G01R33/48 , H01F7/02 , H01F7/06 , G01R33/381 , G01R33/383 , G01R33/3875 , G01R33/54 , G01R33/422
CPC分类号： G01R33/5608 , G01R33/28 , G01R33/34007 , G01R33/36 , G01R33/3614 , G01R33/38 , G01R33/381 , G01R33/3802 , G01R33/383 , G01R33/3804 , G01R33/385 , G01R33/3806 , G01R33/3852 , G01R33/3854 , G01R33/3856 , G01R33/3858 , G01R33/3875 , G01R33/445 , G01R33/48 , G01R33/543 , G01R33/546 , G01R33/56 , G01R33/56518 , G01R33/58 , H01F7/02 , H01F7/06 , G01R33/422
摘要： According to some aspects, a laminate panel is provided. The laminate panel comprises at least one laminate layer including at least one non-conductive layer and at least one conductive layer patterned to form at least a portion of a B0 coil configured to contribute to a B0 field suitable for use in low-field magnetic resonance imaging (MRI).

2. 发明申请

US20180210044A1 END RING PORT STRUCTURE OF AN ATYPICAL RADIO-FREQUENCY COIL OF A MAGNETIC RESONANCE IMAGING SYSTEM 审中-公开
公开(公告)号：US20180210044A1
公开(公告)日：2018-07-26
申请号：US15878856
申请日：2018-01-24
申请人： Siemens Healthcare GmbH
发明人： Hou Quan Lin , JianMin Wang
IPC分类号： G01R33/36 , H01G4/38 , G01R33/28 , G01R33/38 , G01R33/34
CPC分类号： G01R33/36 , G01R33/288 , G01R33/34076 , G01R33/3628 , G01R33/3678 , G01R33/38 , H01G4/38
摘要： An end ring port structure of an atypical coil for a magnetic resonance imaging system, has an end ring, provided with multiple end ring capacitance positions for disposing equivalent capacitances, with a portion of the equivalent capacitances being formed by two or more split capacitors. A first port has a first leg and a second leg, which are each connected to the end ring. A second port has a third leg and a fourth leg, which are each connected to the end ring. A first capacitor bank is arranged on the end ring between an end ring connection point of the first leg and an end ring connection point of the second leg. The first capacitor bank has at least two capacitors not all belonging to the same end ring capacitance position. A second capacitor bank is arranged on the end ring between an end ring connection point of the third leg and an end ring connection point of the fourth leg. The second capacitor bank has at least two capacitors not all belonging to the same end ring capacitance position.

3. 发明申请

US20180168527A1 PORTABLE MAGNETIC RESONANCE IMAGING METHODS AND APPARATUS 审中-公开
公开(公告)号：US20180168527A1
公开(公告)日：2018-06-21
申请号：US15879254
申请日：2018-01-24
申请人： Hyperfine Research, Inc.
发明人： Michael Stephen Poole , Cedric Hugon , Hadrien A. Dyvorne , Laura Sacolick , William J. Mileski , Jeremy Christopher Jordan , Alan B. Katze, JR. , Jonathan M. Rothberg , Todd Rearick , Christopher Thomas McNulty
IPC分类号： A61B6/00 , G01R33/44 , G01R33/383 , G01R33/34 , A61G13/10 , A61B5/055
CPC分类号： G01R33/3852 , A61B5/0555 , A61B6/4405 , A61B50/13 , A61B90/00 , A61B2560/0431 , A61G13/104 , G01R33/34092 , G01R33/3642 , G01R33/3657 , G01R33/38 , G01R33/3802 , G01R33/3806 , G01R33/383 , G01R33/385 , G01R33/3854 , G01R33/3873 , G01R33/389 , G01R33/4215 , G01R33/422 , G01R33/445 , G01R33/48 , G01R33/5608
摘要： According to some aspects, a portable magnetic resonance imaging system is provided, comprising a magnetics system having a plurality of magnetics components configured to produce magnetic fields for performing magnetic resonance imaging. The magnetics system comprises a permanent B0 magnet configured to produce a B0 field for the magnetic resonance imaging system, and a plurality of gradient coils configured to, when operated, generate magnetic fields to provide spatial encoding of emitted magnetic resonance signals, a power system comprising one or more power components configured to provide power to the magnetics system to operate the magnetic resonance imaging system to perform image acquisition, and a base that supports the magnetics system and houses the power system, the base comprising at least one conveyance mechanism allowing the portable magnetic resonance imaging system to be transported to different locations. According to some aspects, the base has a maximum horizontal dimension of less than or equal to approximately 50 inches. According to some aspects, the portable magnetic resonance imaging system weighs less than 1,500 pounds. According to some aspects, the portable magnetic resonance imaging system has a 5-Gauss line that has a maximum dimension of less than or equal to five feet.

4. 发明申请

US20180143280A1 LOW-FIELD MAGNETIC RESONANCE IMAGING METHODS AND APPARATUS 审中-公开
公开(公告)号：US20180143280A1
公开(公告)日：2018-05-24
申请号：US15640369
申请日：2017-06-30
申请人： Hyperfine Research, Inc.
发明人： Hadrien A. Dyvorne , Todd Rearick , Jonathan M. Rothberg , Michael Stephen Poole
IPC分类号： G01R33/56 , G01R33/421 , G01R33/389 , G01R33/36 , G01R33/383
CPC分类号： G01R33/3852 , A61B5/0555 , A61B6/4405 , A61B50/13 , A61B90/00 , A61B2560/0431 , A61G13/104 , G01R33/34092 , G01R33/3642 , G01R33/3657 , G01R33/38 , G01R33/3802 , G01R33/3806 , G01R33/383 , G01R33/385 , G01R33/3854 , G01R33/3873 , G01R33/389 , G01R33/4215 , G01R33/422 , G01R33/445 , G01R33/48 , G01R33/5608
摘要： According to some aspects, a portable magnetic resonance imaging system is provided. The portable magnetic resonance imaging system comprises a B0 magnet configured to produce a B0 magnetic field for an imaging region of the magnetic resonance imaging system, a noise reduction system configured to detect and suppress at least some electromagnetic noise in an operating environment of the portable magnetic resonance imaging system, and electromagnetic shielding provided to attenuate at least some of the electromagnetic noise in the operating environment of the portable magnetic resonance imaging system, the electromagnetic shielding arranged to shield a fraction of the imaging region of the portable magnetic resonance imaging system. According to some aspects, the electromagnetic shielding may be configurable to providing a variable amount of shielding for the imaging region.

5. 发明申请

US20180038931A1 NOISE SUPPRESSION METHODS AND APPARATUS 审中-公开
公开(公告)号：US20180038931A1
公开(公告)日：2018-02-08
申请号：US15721309
申请日：2017-09-29
申请人： Hyperfine Research, Inc.
发明人： Todd Rearick , Gregory L. Charvat , Matthew Scot Rosen , Jonathan M. Rothberg
IPC分类号： G01R33/56 , G01R33/58 , G01R33/385
CPC分类号： G01R33/5608 , G01R33/28 , G01R33/34007 , G01R33/36 , G01R33/3614 , G01R33/38 , G01R33/3802 , G01R33/3804 , G01R33/3806 , G01R33/381 , G01R33/383 , G01R33/385 , G01R33/3852 , G01R33/3854 , G01R33/3856 , G01R33/3858 , G01R33/3875 , G01R33/422 , G01R33/445 , G01R33/48 , G01R33/543 , G01R33/546 , G01R33/56 , G01R33/56518 , G01R33/58 , H01F7/02 , H01F7/06
摘要： According to some aspects, a method of suppressing noise in an environment of a magnetic resonance imaging system is provided. The method comprising estimating a transfer function based on multiple calibration measurements obtained from the environment by at least one primary coil and at least one auxiliary sensor, respectively, estimating noise present in a magnetic resonance signal received by the at least one primary coil based at least in part on the transfer function, and suppressing noise in the magnetic resonance signal using the noise estimate.

6. 发明授权

US09797971B2 Noise suppression methods and apparatus 有权
公开(公告)号：US09797971B2
公开(公告)日：2017-10-24
申请号：US15387320
申请日：2016-12-21
申请人： Hyperfine Research, Inc.
发明人： Todd Rearick , Gregory L. Charvat , Matthew Scot Rosen , Jonathan M. Rothberg
IPC分类号： G01V3/00 , G01R33/56 , G01R33/58 , G01R33/385
CPC分类号： G01R33/5608 , G01R33/28 , G01R33/34007 , G01R33/36 , G01R33/3614 , G01R33/38 , G01R33/3802 , G01R33/3804 , G01R33/3806 , G01R33/381 , G01R33/383 , G01R33/385 , G01R33/3852 , G01R33/3854 , G01R33/3856 , G01R33/3858 , G01R33/3875 , G01R33/422 , G01R33/445 , G01R33/48 , G01R33/543 , G01R33/546 , G01R33/56 , G01R33/56518 , G01R33/58 , H01F7/02 , H01F7/06
摘要： According to some aspects, a method of suppressing noise in an environment of a magnetic resonance imaging system is provided. The method comprising estimating a transfer function based on multiple calibration measurements obtained from the environment by at least one primary coil and at least one auxiliary sensor, respectively, estimating noise present in a magnetic resonance signal received by the at least one primary coil based at least in part on the transfer function, and suppressing noise in the magnetic resonance signal using the noise estimate.

7. 发明授权

US09632204B2 Dual antenna for circular polarization 有权
公开(公告)号：US09632204B2
公开(公告)日：2017-04-25
申请号：US15029534
申请日：2013-11-13
申请人： Halliburton Energy Services, Inc.
发明人： Rebecca Corina Jachmann , Jie Yang
IPC分类号： G01V3/32 , G01R33/36 , G01R33/38
CPC分类号： G01V3/32 , G01R33/34 , G01R33/36 , G01R33/3678 , G01R33/38 , G01R33/3808
摘要： In an example embodiment, a nuclear magnetic resonance (NMR) logging tool comprises an arrangement of one or more magnets that generates a static magnetic field (B0) in a material body. A pair of first and second antenna coils is attached to the tool around an antenna core, wherein the turns of the first and second antenna coils are unaligned with either a longitudinal axis of the tool, or an orthogonal axis substantially transverse thereto. Circuitry drives the pair of first and second antenna coils in concert to produce a radio frequency field (B1) in the material body. In one embodiment, the turns in the first antenna coil are separated from corresponding turns in the second oppositely wound antenna coil by an angle (α). In an example embodiment, the angle (α) is selected to minimize a power draw of the tool, or maximize one or more of SNR/echo, (I), SNR/time, or (II) of the tool, for a predetermined configuration of the magnet arrangement and antenna core of the tool.

8. 发明授权

US09547057B2 Noise suppression methods and apparatus 有权
标题翻译：噪声抑制方法和装置
公开(公告)号：US09547057B2
公开(公告)日：2017-01-17
申请号：US14845949
申请日：2015-09-04
申请人： Hyperfine Research, Inc.
发明人： Todd Rearick , Gregory L. Charvat , Matthew Scot Rosen , Jonathan M. Rothberg
IPC分类号： G01V3/00 , G01R33/38 , G01R33/36 , G01R33/385 , G01R33/44 , G01R33/58 , G01R33/48 , H01F7/02 , H01F7/06 , G01R33/381 , G01R33/383 , G01R33/3875 , G01R33/54 , G01R33/56 , G01R33/34 , G01R33/422
CPC分类号： G01R33/5608 , G01R33/28 , G01R33/34007 , G01R33/36 , G01R33/3614 , G01R33/38 , G01R33/3802 , G01R33/3804 , G01R33/3806 , G01R33/381 , G01R33/383 , G01R33/385 , G01R33/3852 , G01R33/3854 , G01R33/3856 , G01R33/3858 , G01R33/3875 , G01R33/422 , G01R33/445 , G01R33/48 , G01R33/543 , G01R33/546 , G01R33/56 , G01R33/56518 , G01R33/58 , H01F7/02 , H01F7/06
摘要： According to some aspects, a method of suppressing noise in an environment of a magnetic resonance imaging system is provided. The method comprising estimating a transfer function based on multiple calibration measurements obtained from the environment by at least one primary coil and at least one auxiliary sensor, respectively, estimating noise present in a magnetic resonance signal received by the at least one primary coil based at least in part on the transfer function, and suppressing noise in the magnetic resonance signal using the noise estimate.
摘要翻译：根据一些方面，提供了一种抑制磁共振成像系统的环境中的噪声的方法。该方法包括基于通过至少一个初级线圈和至少一个辅助传感器从环境获得的多个校准测量值来估计传递函数，所述至少一个初级线圈和至少一个辅助传感器至少估计由至少一个初级线圈接收的磁共振信号中存在的噪声部分地在传递函数上，并且使用噪声估计来抑制磁共振信号中的噪声。

9. 发明申请

US20160334476A1 Tunable microwave resonator for static dynamic nuclear polarization (DNP) 审中-公开
标题翻译：用于静态动态核极化（DNP）的可调微波谐振器
公开(公告)号：US20160334476A1
公开(公告)日：2016-11-17
申请号：US15112661
申请日：2015-01-20
申请人： DOTY SCIENTIFIC, INC.
发明人： David Doty
IPC分类号： G01R33/28 , G01R33/38
CPC分类号： G01R33/282 , G01R33/38
摘要： A tunable millimeter-wave (mmw) DNP probe head is disclosed that is compatible with efficient H/X/Y/e− DNP in samples that may have volume large compared to λ03, where λ0 is the free-space wavelength at the frequency fe of the electron paramagnetic resonance (EPR) when placed in an external polarizing field B0, where B0 is typically in the range of 6.5 T to 35 T, corresponding to fe in the range of 180-1000 GHz, and corresponding to proton resonance frequency fH in the range of 280 MHz to 1500 MHz. The probe head comprises a tune cavity of adjustable volume, a sample cavity that is large compared to the sample wavelength, a tapered conical feed transition filled with a high dielectric material at the small end, and a selectively reflective wall that is substantially reflective of electromagnetic radiation at fe but substantially transparent to electromagnetic radiation at fH.
摘要翻译：公开了可调谐毫米波（mmw）DNP探针头，其与λ03相比可能具有体积大的样品中的有效H / X / Y / e-DNP兼容，其中λ0是频率fe的自由空间波长的电子顺磁共振（EPR）放置在外部偏振场B0中，其中B0通常在6.5T至35T的范围内，对应于在180-1000GHz的范围内的fe，并且对应于质子谐振频率fH 在280MHz至1500MHz的范围内。探头包括可调节体积的调谐空腔，与样品波长相比较大的样品腔，在小端填充有高电介质材料的锥形进给转变，以及基本反射电磁的选择性反射壁在fH处的辐射，但在fH处的电磁辐射基本透明。

10. 发明申请

US20160291102A1 Coil Assembly for Accurate Adjustment of Magic Angle in Solid-State NMR Apparatus and Method of Adjusting Magic Angle Using Such Coil Assembly 审中-公开
标题翻译：用于精确调整固态NMR装置中的魔角的线圈组件和使用这种线圈组件调整魔角的方法
公开(公告)号：US20160291102A1
公开(公告)日：2016-10-06
申请号：US15079422
申请日：2016-03-24
申请人： JEOL Ltd.
发明人： Tatsuya Matsunaga , Kiyonori Takegoshi , Takashi Mizuno
IPC分类号： G01R33/38 , G01R33/389 , G01R33/46 , G01R33/565 , G01R33/44
CPC分类号： G01R33/38 , G01R33/307 , G01R33/3875 , G01R33/389 , G01R33/445 , G01R33/46 , G01R33/56563
摘要： A specially shaped coil assembly for accurate adjustment of the magic angle is provided to permit accurate adjustment of an angle made between the direction of a static magnetic field and the axis of sample spinning without impairing the resolution of NMR signals. The sample is placed within the external static magnetic field B0. The coil assembly is for use in a solid-state NMR apparatus that performs NMR detection while spinning the sample about an axis tilted at the magic angle relative to the external static magnetic field B0. The coil assembly comprises a pair of arcuate conductor lines and a pair of straight conductor lines. Each of the arcuate lines has a diameter of 2a. Each of the straight lines has a length of 2L. The diameter 2a and the length 2L are so selected as to satisfy the relationship: 1.91≦2L/2a≦2.15.
摘要翻译：提供用于精确调整魔角的特殊形状的线圈组件，以允许精确调节在静态磁场的方向和样品旋转轴之间产生的角度，而不损害NMR信号的分辨率。样品放置在外部静态磁场B0内。线圈组件用于固态NMR装置，其在相对于外部静磁场B0以绕魔角倾斜的轴线旋转样品的同时进行NMR检测。线圈组件包括一对弓形导体线和一对直线导线。每个弧形线的直径为2a。每根直线的长度为2L。直径2a和长度2L被选择为满足关系：1.91≤2L/2a≤2.15。

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