公开(公告)号：EP3896472B1

公开(公告)日：2024-07-31

申请号：EP20169364.5

申请日：2020-04-14

IPC分类号： G01R33/38 ,  G01R33/44 ,  G01R33/34 ,  G01R33/48 ,  G01R33/383 ,  G01R33/381 ,  G01R33/3815 ,  G01R33/46

CPC分类号： G01R33/3808 ,  G01R33/383 ,  G01R33/4814 ,  G01R33/381 ,  G01R33/3802 ,  G01R33/34007 ,  G01R33/445 ,  G01R33/46 ,  G01R33/3815

公开(公告)号：EP4386414A1

公开(公告)日：2024-06-19

申请号：EP22214113.7

申请日：2022-12-16

申请人： Koninklijke Philips N.V.

发明人： VAN DEN BRINK, Johan Samuel

IPC分类号： G01R33/563 ,  G01R33/56 ,  G01R33/54 ,  G01R33/44 ,  G01R33/48 ,  G01R33/38

CPC分类号： G01R33/4814 ,  G01R33/56341 ,  G01R33/5607 ,  G01R33/543 ,  G01R33/3806 ,  G01R33/3808 ,  G01R33/445

摘要： Disclosed herein is a medical system (100, 300) comprising: an NMR system (102) configured for acquiring NMR data (134, 718) descriptive of a subject (112) within a measurement zone (118) and a memory (126) storing machine executable instructions (130) and pulse sequence commands (132). The pulse sequence commands are configured to control the NMR system to acquire the NMR data according to a diffusion weighted magnetic resonance protocol and comprises a radio-frequency pulse group (706) configured to spectrally suppress a first constituent of the NMR signal. The execution of the machine executable instructions causes a computational system (120) to: acquire (200) the NMR data; detect (202) a predetermined tissue type in the measurement zone using a second constituent of the NMR signal recorded in the NMR data; and provide (204) a signal (138) if the predetermined tissue type is detected.

公开(公告)号：EP3268579B1

公开(公告)日：2024-06-12

申请号：EP16762097.0

申请日：2016-02-09

IPC分类号： E21B47/00 ,  G01R33/44 ,  G01V3/14 ,  G01R33/38 ,  G01R33/36 ,  G01R33/383 ,  G01V3/32

CPC分类号： E21B47/00 ,  G01V3/14 ,  G01R33/3678 ,  G01R33/3808 ,  G01R33/383 ,  G01V3/32

公开(公告)号：EP3470828A2

公开(公告)日：2019-04-17

申请号：EP18400013.1

申请日：2018-05-28

申请人： Elegant Mathematics Limited

发明人： Ibragimova, Olena ,  Ibragimov, Ilgiz

IPC分类号： G01N24/12 ,  G01N24/14 ,  G01R33/28 ,  G01R33/36 ,  G01R33/38 ,  G01R33/383 ,  G01R33/32

CPC分类号： G01R33/383 ,  A61B5/055 ,  A61B18/06 ,  A61B18/1815 ,  A61B34/30 ,  A61B90/37 ,  A61B2017/320069 ,  A61B2018/00577 ,  A61B2018/00994 ,  A61B2090/374 ,  A61F2/82 ,  A61F7/00 ,  A61F2007/0089 ,  A61F2007/009 ,  A61F2250/0001 ,  A61K31/714 ,  A61K33/24 ,  A61N2/002 ,  A61N2/06 ,  A61N7/02 ,  G01N24/10 ,  G01N24/12 ,  G01N24/14 ,  G01R33/282 ,  G01R33/285 ,  G01R33/307 ,  G01R33/32 ,  G01R33/323 ,  G01R33/3621 ,  G01R33/3802 ,  G01R33/3808 ,  G01R33/3873 ,  G01R33/465 ,  G01R33/48 ,  G01R33/4804 ,  G01R33/56308 ,  G01R33/60 ,  H01F1/0557 ,  H01F41/0273 ,  H03F3/54

摘要： The invention pertains to advances in real-time methods in nuclear magnetic resonance by offering:
• a new real-time processing method for nuclear magnetic resonance (NMR) spectrum acquisition without external resonator(s), which remains stable despite magnetic field fluctuations,
• a new processing method for nuclear magnetic resonance spectrum acquisition, which remains stable despite magnetic field fluctuations and resonator stability,
• a new method of constructing predetermined magnets from appropriate magnetic material that allows for focusing the magnetic field in a target region,
• a new dual frequency dynamic nuclear polarization (DNP) generator that polarizes the spin of electrons and acts as an NMR transmitter.

公开(公告)号：EP3183423A4

公开(公告)日：2018-05-16

申请号：EP14906013

申请日：2014-11-12

申请人： HALLIBURTON ENERGY SERVICES INC

发明人： LI LILONG ,  JACHMANN REBECCA ,  REIDERMAN ARCADY

IPC分类号： G01V3/32 ,  E21B47/00 ,  G01R33/44

CPC分类号： G01R33/3808 ,  G01R33/341 ,  G01V3/32

摘要： A side-looking Nuclear Magnetic Resonance ("NMR") logging tool is designed to reduce and/or eliminate a borehole signal. The logging tool includes a magnetic assembly and a radio frequency ("RF") transceiver antenna. The axial extent of the RF transceiver antenna has a length selected to reduce a borehole signal.

公开(公告)号：EP3183422A1

公开(公告)日：2017-06-28

申请号：EP14905734.1

申请日：2014-11-12

申请人： Halliburton Energy Services, Inc.

发明人： LI, Lilong ,  JACHMANN, Rebecca ,  REIDERMAN, Arcady

IPC分类号： E21B47/00 ,  G01V3/18 ,  G01V3/38

CPC分类号： G01V3/32 ,  G01R33/3808 ,  G01R33/383 ,  G01R33/44

摘要： A side-looking Nuclear Magnetic Resonance ("NMR") logging tool is designed to reduce and/or eliminate a borehole signal. The flipping angle of an RF refocusing pulse or excitation pulse emitted by the logging tool is manipulated to reduce the borehole signal.

摘要翻译： 侧视核磁共振（“NMR”）测井工具设计用于减少和/或消除井眼信号。 操纵测井工具发射的RF重聚焦脉冲或激发脉冲的翻转角以减小井眼信号。

公开(公告)号：EP2971495A1

公开(公告)日：2016-01-20

申请号：EP14850092.9

申请日：2014-05-06

申请人： Halliburton Energy Services, Inc.

发明人： JACHMANN, Rebecca ,  GOODMAN, George David

IPC分类号： E21B47/00 ,  G01V3/18 ,  G01V3/36

CPC分类号： G01V3/32 ,  E21B47/00 ,  E21B47/122 ,  G01R33/341 ,  G01R33/3808

摘要： The magnet and antenna assemblies of a logging tool can be arranged according to geometries optimal for concentric or eccentric well logging operations. In an example configuration, a logging tool can include a magnet, a magnetic core made of a magnetically permeable material, and an antenna. The outward path of the antenna can be positioned along a surface of the magnetically permeable magnetic core that faces away from the magnet, and the return path of the antenna can also be positioned along a surface that faces away from the magnet.

摘要翻译： 测井工具的磁体和天线组件可根据对同心或偏心测井作业最佳的几何形状进行排列。 在示例配置中，测井工具可以包括磁体，由导磁材料制成的磁芯和天线。 天线的向外路径可以沿着导磁磁芯的远离磁铁的表面定位，并且天线的返回路径也可以沿着远离磁铁的表面定位。

公开(公告)号：EP2905631A1

公开(公告)日：2015-08-12

申请号：EP14191760.9

申请日：2008-12-19

申请人： T2 Biosystems, Inc.

发明人： Lowery, Thomas J. ,  Prado, Pablo J.

IPC分类号： G01R33/28 ,  G01R33/34 ,  G01R33/341 ,  G01R33/38 ,  G01R33/465 ,  A61B5/055 ,  A61B5/00 ,  G01R33/36

CPC分类号： G01R33/285 ,  A61B5/055 ,  A61B5/413 ,  G01R33/281 ,  G01R33/34046 ,  G01R33/34084 ,  G01R33/341 ,  G01R33/36 ,  G01R33/3692 ,  G01R33/3808 ,  G01R33/465

摘要： Nuclear magnetic resonance systems and methods of use thereof are provided. The systems employ implantable radiofrequency coils (105) and optionally implantable magnets (101). The systems can employ weak permanent magnets and/or permanent magnets that provide magnetic fields that are much less homogeneous than in conventional systems. This allows, for example, for inexpensive and simple probeheads for nuclear magnetic resonance relaxometry with suitable biosensors. The methods of the present invention allow in vivo magnetic resonance measurements and, in particular, monitoring of analytes and determination of medical diagnostic information, for example, based on determined magnetic resonance parameters.

摘要翻译： 核磁共振系统和其使用方法提供。 该系统采用可植入射频线圈（105）和任选的可植入的磁体（101）。 该系统可以采用弱永磁体和/或永磁体确实提供magneticfields确实比传统的系统少得多均匀。 这允许，例如，用于与合适的生物传感器核磁共振弛豫便宜和简单的测试头。 本发明的方法允许在体内磁共振测量和，尤其是，分析物和医疗诊断信息确定的监测，例如，基于确定的开采磁共振参数。

公开(公告)号：EP2736409A1

公开(公告)日：2014-06-04

申请号：EP12818234.2

申请日：2012-07-27

申请人： Brigham and Women's Hospital, Inc.

发明人： PATZ, Samuel ,  HROVAT, Mirko ,  BUTLER, James, P.

IPC分类号： A61B5/055

CPC分类号： G01R33/34092 ,  A61B5/004 ,  A61B5/055 ,  A61B5/08 ,  A61G11/00 ,  A61G2210/50 ,  A61M16/021 ,  A61M2016/0027 ,  A61M2205/3317 ,  G01R33/3808 ,  G01R33/421 ,  G01R33/46 ,  G01R33/5601 ,  G01R33/565

摘要： A portable magnetic resonance (MR) system for quantitatively measuring properties of a subject's lungs, such as regional ventilation and lung density, is provided. The portable MR system includes a magnet, radio frequency (RF) coil assembly, and spectrometer system. The magnet can be positioned near the subject's chest. The magnetic field of the magnet substantially homogeneous in a region-of-interest located at a distance from the surface of the magnet that localizes the region-of-interest in the subject's lung. The RF coil assembly includes one or more RF coils that are sized to be positioned near the subject's chest, and receives MR signals from the region-of-interest. The spectrometer system controls the RF coil assembly and computes from the acquired MR signals, a quantitative metric indicative of a characteristic of the subject's lung in the region-of-interest. An active noise cancellation system is provided so RF shielding of the portable MR system is not required.

公开(公告)号：EP2050390A4

公开(公告)日：2011-05-04

申请号：EP07791704

申请日：2007-07-31

申请人： UNIV OKAYAMA NAT UNIV CORP ,  HITACHI METALS LTD

发明人： KATO HIROKAZU ,  TAKAHASHI NORIO ,  ASAUMI JUNICHI ,  AOKI MASAAKI

IPC分类号： G01R33/383 ,  A61B5/055 ,  G01R33/3873

CPC分类号： G01R33/3808 ,  G01R33/383 ,  G01R33/3873