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    • 1. 发明公开
    • 극저자기장 핵자기 공명 물체 식별 방법 및 극저자기장 핵자기 공명 물체 식별 장치
    • 使用超低场NMR和超低温NMR目标鉴别装置的目标识别方法
    • KR1020130045637A
    • 2013-05-06
    • KR1020110109971
    • 2011-10-26
    • 한국표준과학연구원
    • 김기웅강찬석이성주이용호유권규
    • G01N24/08
    • G01R33/448G01N24/08G01R33/326G01R33/445
    • PURPOSE: An ultra-low magnetic field NMR(Nuclear Magnetic Resonance) object sorting method and a ultra-low magnetic field NMR object sorting device are provided to sort a measurement object by using spin-lattice relaxation time while changing a low pre-magnetization magnetic field not including the spin-lattice relaxation time or detection magnetic field. CONSTITUTION: An ultra-low magnetic field NMR object sorting method is as follows. Each spin-lattice relaxation time is respectively measured by applying a plurality of the intensity of a pre-magnetization magnetic field to measurement objects(S111). The measurement objects are sorted by the spin-lattice relaxation time. A method for measuring each spin-lattice relaxation time is as follows. A pulse sequence proper to separate relaxation time properties of the measurement object is set(S110). The pre-magnetization magnetic field and a detection magnetic field are applied so that free induction attenuation signals are measured(S112,S114). The free induction attenuation signals are Fourier-transformed so that the signal intensity or the line width of resonance frequencies of a predetermined atomic nucleus is measured(S118). The spin-lattice relaxation time is obtained by fitting a change in the signal intensity caused by time that the pre-magnetization magnetic field is applied(S142). [Reference numerals] (S110) Set a pulse sequence; (S112) Pre-magnetization magnetic field, Measurement magnetic field; (S114) Measure an FID signal; (S118) Measure an amplitude according to Lamor frequency; (S122) Time scanning for the pre-magnetization magnetic field completed?; (S124) Change the application time of the pre-magnetization magnetic field; (S132) Intensity scanning for the measurement magnetic field completed?; (S134) Change the intensity of the measurement magnetic field; (S144) Check a kind
    • 目的:提供超低磁场NMR(核磁共振)物体分选方法和超低磁场NMR物体分选装置,以便通过使用自旋晶格弛豫时间同时改变低预磁化磁化 场不包括自旋晶格弛豫时间或检测磁场。 构成:超低磁场NMR物质分选方法如下。 通过对测量对象施加多个预磁化磁场强度来分别测量每个自旋晶格弛豫时间(S111)。 测量对象由自旋晶格弛豫时间分类。 用于测量每个自旋晶格弛豫时间的方法如下。 设定适于分离测量对象的弛豫时间特性的脉冲序列(S110)。 施加预磁化磁场和检测磁场,以测量自由感应衰减信号(S112,S114)。 对自由感应衰减信号进行傅里叶变换,以测量预定原子核的共振频率的信号强度或线宽(S118)。 通过拟合由施加预磁化磁场的时间引起的信号强度的变化,获得自旋晶格弛豫时间(S142)。 [参考号](S110)设定脉冲序列; (S112)预磁化磁场,测定磁场; (S114)测量FID信号; (S118)根据劳模频率测量振幅; (S122)预磁化磁场的时间扫描完成? (S124)改变预磁化磁场的施加时间; (S132)测量磁场的强度扫描完成? (S134)改变测量磁场的强度; (S144)检查一种
    • 2. 发明公开
    • 양자 이론-기반 연속 정밀 핵 스핀 자기 공명 분광/핵 스핀 자기 공명 영상 방법 및 장치
    • 基于量子理论的连续精确NMR / MRI:方法和设备
    • KR1020100015625A
    • 2010-02-12
    • KR1020097021585
    • 2008-05-02
    • 펭, 데렉, 디.
    • 펭,데렉,디.
    • A61B5/055
    • G01R33/54G01R33/445G01R33/50G01R33/5608G01R33/60
    • A method for spin magnetic resonance applications in general, and for performing NMR (nuclear magnetic resonance spectroscopy) and MRI (nuclear magnetic resonance imaging) in particular is disclosed. It is a quantum theory-based continuous precision method. This method directly makes use of spin magnetic resonance random emissions to generate its auto-correlation function and power spectrum, from which are derived the relaxation times and spin number density. The method substantially reduces the NMR/MRI machine and data processing complexity, thereby making NMR/MRI machines much less-costly, much less-bulky, more accurate, and easier to operate than the current pulsed NMR/MRI. By employing extremely low transverse RF magnetic B1 field (around or less 0.01 Gauss), MRI with this method is much safer for patients. And, by employing continuous spin magnetic resonance emissions, NMR with this method is of virtually unlimited spectral resolution to satisfy any science and engineering requirements.
    • 一般来说,自旋磁共振应用的方法,特别是用于进行NMR(核磁共振光谱)和MRI(核磁共振成像)的方法。 它是一种基于量子理论的连续精度法。 该方法直接利用自旋磁共振随机辐射产生自相关函数和功率谱,从中得出松弛时间和自旋数密度。 该方法大大降低了NMR / MRI机器和数据处理的复杂性,从而使得NMR / MRI机器比目前的脉冲NMR / MRI更便宜,更加笨重,更准确,更容易操作。 通过采用极低的横向射频磁场B1场(约0.01或高于0.01高斯),采用这种方法的MRI对患者来说更加安全。 并且,通过采用连续的自旋磁共振发射,使用该方法的NMR具有几乎无限的光谱分辨率以满足任何科学和工程要求。
    • 7. 发明公开
    • 상이한 타입의 보정 코일을 사용하여 MR 시스템을 환자 맞춤형으로 B0 균질화하기 위한 방법
    • 一种方法,特别适用于使用不同类型的线圈的MR系统的患者自适应B0均质
    • KR1020150021894A
    • 2015-03-03
    • KR1020140107158
    • 2014-08-18
    • 지멘스 악티엔게젤샤프트
    • 비버슈테판라데벡랄프
    • A61B5/055A61B5/05G01R33/3875G01R33/44
    • G01R33/3875A61B5/0522A61B5/055G01R33/445
    • 본 발명은 자기 공명 단층 촬영 방법 및 자기 공명 단층 촬영 시스템(101)에 관한 것으로,
      상기 자기 공명 단층 촬영 시스템은 보정 시스템(GSC1, GSC2, GSC3, GSC4, LSC1, LSC2)을 구비하며, 상기 보정 시스템(GSC1, GSC2, GSC3, GSC4, LSC1, LSC2)은 자기 공명 단층 촬영 시스템(101)의 보어(103)를 둘러싸는 영역(BRG, GSC1, GSC2, GSC3, GSC4, 112x, 112y, 112z) 내부에 하나 이상의 글로벌 보정 코일(GSC1, GSC2, GSC3, GSC4)을 포함하고, 상기 보정 시스템(GSC1, GSC2, GSC3, GSC4, LSC1, LSC2)은 자기 공명 단층 촬영 시스템(101)의 로컬 코일(106) 내부에 하나 이상의 로컬 보정 코일(LSC1, LSC2)을 포함하며,
      또한, 상기 자기 공명 단층 촬영 시스템은, 글로벌 보정 코일(GSC1, GSC2, GSC3, GSC4) 및 로컬 보정 코일(LSC1, LSC2)을 위한 보정 전류(IGSC, ILSC, m*IGSC, n*ILSC)를 결정하도록 형성된 보정 제어 장치(117)를 구비한다.
    • 本发明涉及MRI和MRI系统的方法(101)。 MRI系统包括垫片系统(GSC1,GSC2,GSC3,GSC4,LSC1,LSC2)。 垫片系统(GSC1,GSC2,GSC3,GSC4,LSC1,LSC2)在一个区域(BRG,GSC1,GSC2,GSC3,GSC4,112x,112y等)中至少包括一个全局匀场线圈(GSC1,GSC2,GSC3,GSC4) 112z),其围绕MRI系统(101)的孔(103)。 垫片系统(GSC1,GSC2,GSC3,GSC4,LSC1,LSC2)包括在MRI系统(101)的局部线圈(106)中的至少一个局部垫片线圈(LSC1,LSC2)。 此外,MRI系统包括垫片控制装置(117),其确定用于全局匀场线圈(GSC1,GSC2,GSC3,GSC4)和垫片线圈(IMC1,GSC3,GSC4)的垫片电流(IGSC,ILSC,m * IGSC,n * ILSC) LSC1,LSC2)。
    • 9. 发明公开
    • 극저자장 핵자기공명 심근전기활동 직접 검출 방법 및 극저자장 핵자기공명장치
    • 基于超低场核磁共振直接测量心肌电异常的方法和超低场核磁共振的设备
    • KR1020120055087A
    • 2012-05-31
    • KR1020100116596
    • 2010-11-23
    • 한국표준과학연구원
    • 김기웅이용호김진목권혁찬유권규
    • A61B5/055A61B5/0402
    • A61B5/055A61B5/0044G01R33/24G01R33/445
    • PURPOSE: A method for detecting an ultra low magnetic field nuclear magnetic resonance myocardial electric activity and an ultra low magnetic field nuclear magnetic resonance device are provided to accurately detect a lesion of a heart by matching a resonant frequency of a proton around the myocardium and a frequency of the change of a myocardial magnetic field due to an abnormal electric activity. CONSTITUTION: An object is arranged near a high sensitive magnetic measuring unit in a magnetic shielding unit(S110). An object is previously magnetized by using a prior magnetization unit(S120). An external measurement bias magnetic field corresponding to a proton magnetic resonant frequency corresponding to a frequency of a periodical myocardial activity of a lesion of the object is provided(S140). A magnetic resonant signal is measured from a measurement object by using the high sensitive magnetic measurement unit(S160).
    • 目的:提供一种用于检测超低磁场核磁共振心肌电活动的方法和超低磁场核磁共振装置,以通过使心肌周围的质子的共振频率和 由于异常电活动引起的心肌磁场变化的频率。 构成:物体安装在磁屏蔽单元中的高灵敏磁测量单元附近(S110)。 通过使用现有的磁化单元(S120),预先磁化一个物体。 提供了对应于对象的病变的周期性心肌活动频率的质子磁共振频率的外部测量偏置磁场(S140)。 通过使用高灵敏磁测量单元从测量对象测量磁共振信号(S160)。