会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 36. 发明授权
    • Magnetic resonance selective excitation method of a target distribution of magnetization with complete full integration of bloch equations for RF large angle pulses (LAP)'s that are 15 degrees or greater, without small angle approximation
    • 磁共振选择激励方法的目标磁化分布方法,对于大于15度或更大的RF大角度脉冲(LAP)的完全整体积分,无小角度逼近
    • US08368400B2
    • 2013-02-05
    • US12382202
    • 2009-03-11
    • Martin HaasMaxim ZaitsevJürgen Hennig
    • Martin HaasMaxim ZaitsevJürgen Hennig
    • G01V3/00
    • G01R33/483G01R33/4833G01R33/4836G01R33/543G01R33/5611G01R33/5612G01R33/5613G01R33/5617
    • A magnetic resonance method for using radio frequency pulses for spatially selective and frequency selective or multidimensionally spatially selective excitation of an ensemble of nuclear spins with an initial distribution of magnetization in a main magnetic field aligned along a z-axis, wherein a spin magnetization with a given target distribution of magnetization is generated, and for refocusing the spin magnetization, is characterized in that the radio frequency pulse is used as a sequence of sub-pulses of independent duration, courses of gradients and spatial and/or spectral resolution, comprising one or more large angle RF pulses with tip angles greater than or approximately equal to 15°, which generate a gross distribution of magnetization approximating the target distribution of magnetization or a desired modification of the distribution of magnetization with a mean deviation less than or approximately equal to 15°, wherein the actual effect of the LAPs on the distribution of spin magnetization before the radio frequency pulse is used is calculated by integration of the Bloch equations without small angle approximation, and one or more small angle RF pulses=SAPs with tip angles less than or approximately equal to 15° reducing the difference between the target distribution of magnetization and the gross distribution of magnetization caused by the LAPs.
    • 一种磁共振方法,用于使用射频脉冲用于沿着z轴对准的主磁场中的初始磁化分布的核自旋组合的空间选择性或频率选择性或多维空间选择性激发,其中自旋磁化与 产生磁化的目标分布,并且对于重新聚焦自旋磁化,其特征在于射频脉冲被用作独立持续时间,梯度,空间和/或光谱分辨率的子脉冲序列,包括一个或 具有大于或大约等于15°的尖角的更大的角度RF脉冲,其产生近似磁化的目标分布的磁化的总体分布或磁化分布的期望修改,平均偏差小于或等于15 °,其中LAP对分布的实际效果 使用无线电频率脉冲之前的自旋磁化是通过不使用小角度近似的Bloch方程的积分计算的,并且一个或多个小角度RF脉冲=具有小于或等于15°的尖角的SAP减少目标分布之间的差异 的磁化和由LAP引起的磁化的总分布。
    • 38. 发明申请
    • Method for position dependent change in the magnetization in an object in a magnetic resonance experiment
    • 磁共振实验中物体磁化位置相关变化的方法
    • US20110080169A1
    • 2011-04-07
    • US12897806
    • 2010-10-05
    • Martin HaasPeter UllmannWolfgang RuhmMaxim ZaitsevJürgen Hennig
    • Martin HaasPeter UllmannWolfgang RuhmMaxim ZaitsevJürgen Hennig
    • G01R33/48
    • G01R33/4836G01R33/3415G01R33/385G01R33/4833G01R33/5612
    • A method for position dependent change in the magnetization in an object, according to a requirement in a magnetic resonance measurement, wherein radio-frequency pulses are irradiated in conjunction with supplementary magnetic fields that vary in space and over time and are superposed on the static and homogeneous basic field of a magnetic resonance measurement apparatus along a z-direction, is characterized in that non-linear supplementary magnetic fields are used, whose spatial gradient of the z-component is not constant at least at one instant of the irradiation, and that the radio-frequency pulses to be irradiated are calculated in advance, wherein progressions over time of the field strengths of the supplementary magnetic fields in the region of the object that are calculated and/or measured position-dependently are included in this calculation. This enables change in the magnetization with an at least locally spatially higher resolution and/or shorter irradiation duration of the RF pulses and supplementary magnetic fields than is feasible with linear supplementary magnetic fields produced by conventional gradient systems. In particular, this is possible under the technical and physiological conditions that currently constrain the performance of the known methods using linear supplementary fields.
    • 根据磁共振测量中的要求,对物体的磁化位置相关变化的方法,其中射频脉冲与空间和时间上变化并叠加在静态和 磁共振测量装置沿z方向的均匀基本场的特征在于,使用非线性辅助磁​​场,其至少在照射一瞬间z分量的空间梯度不恒定,并且 预先计算要照射的射频脉冲,其中在该计算中包括在计算和/或测量的对象的区域中的辅助磁场的场强随时间的逐渐增加。 这使得能够利用由常规梯度系统产生的线性补充磁场可行的RF脉冲和辅助磁场的至少局部空间上更高的分辨率和/或更短的照射持续时间来改变磁化。 特别地,这在目前限制使用线性补充领域的已知方法的性能的技术和生理条件下是可能的。
    • 39. 发明申请
    • TOOTHBRUSH AND METHOD OF MANUFACTURING IT
    • 牙刷及其制造方法
    • US20100313373A1
    • 2010-12-16
    • US12853576
    • 2010-08-10
    • Christian StiefMartin HaasJens StoerkelFlorian StichUlrich Pfeifer
    • Christian StiefMartin HaasJens StoerkelFlorian StichUlrich Pfeifer
    • A46B9/04
    • A46B9/04A46B3/16A46D1/00
    • A toothbrush having a handle portion and a neck portion connecting the handle portion with a head. The head has a brushing side and a rear side. The brushing side includes a plurality of bristle tufts for cleaning the teeth. The tufts are attachable in the head through tufting apertures, with each tufting aperture being assigned a blind-end hole having sidewalls and a bottom. The cross-sectional area of the head between a first bottom and the rear side differing from a cross-sectional area of the head between a second bottom and the rear side. The first bottom and the second bottom are arranged in the head in such a way that the minimum distance between the first bottom and the rear side as well as the minimum distance between the second bottom and the rear side are each in the range of between about 0.5 and about 2.5 mm.
    • 一种具有手柄部分和将把手部分与头部连接的颈部的牙刷。 头部有刷子侧和后侧。 刷牙侧包括用于清洁牙齿的多个刷毛簇。 毛簇可以通过簇绒孔附着在头部中,每个簇绒孔被分配有具有侧壁和底部的盲端孔。 第一底部和后侧之间的头部的横截面面积与第二底部和后侧之间的头部的横截面面积不同。 第一底部和第二底部布置在头部中,使得第一底部和后侧之间的最小距离以及第二底部和后侧之间的最小距离各自在约 0.5和约2.5mm。