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    • 14. 发明申请
    • PERMANENT MAGNETIC ASSEMBLY FOR MAGNETIC PARTICLE IMAGING
    • 用于磁颗粒成像的永久磁性组件
    • WO2010070575A1
    • 2010-06-24
    • PCT/IB2009/055741
    • 2009-12-14
    • PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBHKONINKLIJKE PHILIPS ELECTRONICS N.V.TIMINGER, HolgerWEIZENECKER, JürgenGLEICH, Bernhard
    • TIMINGER, HolgerWEIZENECKER, JürgenGLEICH, Bernhard
    • G01R33/383A61B5/05
    • A61B5/055A61B5/0515G01R33/022G01R33/14G01R33/3802G01R33/383
    • The present invention relates to an arrangement (10) for influencing and/or detecting magnetic particles in a region of action (300). The arrangement (10) comprises selection means (210) for generating a magnetic selection field (211) having a pattern in space of its magnetic field strength such that a first sub-zone (301) having a low magnetic field strength and a second sub-zone (302) having a higher magnetic field strength are formed in the region of action (300), drive means (220) for changing the position in space of the two sub- zones (301, 302) in the region of action (300) by means of a magnetic drive field (221) so that the magnetization of the magnetic material changes locally, and receiving means (230) for acquiring detection signals, which detection signals depend on the magnetization in the region of action (300), which magnetization is influenced by the change in the position in space of the first and second sub-zone (301, 302). The selection means (210) comprises a permanent magnetic assembly having at least one permanent magnetic unit (213) comprising a plurality of magnetic sub-elements (214) wherein the magnetic sub-elements (214) have individually fixed magnetization orientation, and are bonded together to form said at least one permanent magnetic unit (213).
    • 本发明涉及用于在动作区域(300)中影响和/或检测磁性颗粒的装置(10)。 该装置(10)包括选择装置(210),用于产生具有其磁场强度空间中的图案的磁选择场(211),使得具有低磁场强度的第一子区(301)和第二子 在动作区域(300)中形成具有较高磁场强度的区域(302),用于改变动作区域中的两个子区域(301,302)的空间位置的驱动装置(220) 300),借助磁驱动场(221)使得磁性材料的磁化在局部变化,以及用于获取检测信号的接收装置(230),该检测信号取决于作用区域(300)中的磁化, 该磁化受到第一和第二子区(301,302)的空间位置变化的影响。 所述选择装置(210)包括具有至少一个包括多个磁性子元件(214)的永久磁性单元(213)的永久磁性组件,其中所述磁性子元件(214)具有单独固定的磁化取向, 一起形成所述至少一个永磁单元(213)。
    • 18. 发明申请
    • COLON SCREENING BY USING MAGNETIC PARTICLE IMAGING
    • 使用磁性粒子成像进行彩色扫描
    • WO2012063186A1
    • 2012-05-18
    • PCT/IB2011/054953
    • 2011-11-07
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBHBORGERT, JörnSCHMALE, IngoRAHMER, Jürgen ErwinGLEICH, BernhardKUHN, Michael Harald
    • BORGERT, JörnSCHMALE, IngoRAHMER, Jürgen ErwinGLEICH, BernhardKUHN, Michael Harald
    • A61K49/18A61B5/05
    • A61B5/0515A61B5/05A61K49/1818
    • The present invention relates to a method for colon screening by using Magnetic Particle Imaging comprising the steps of: (a) generating an imaging magnetic field with a spatial distribution of the magnetic field strength such that the area of examination in the colon consists of a first sub-area of the colon with lower magnetic field strength, where the magnetization of a magnetic particle which was pre-delivered to the colon is not saturated, and a second sub-area of the colon with a higher magnetic field strength, where the magnetization of said magnetic particle is saturated;(b) changing the spatial location of both sub-areas in the area of examination so that the magnetization of said particles changes locally; (c) acquiring signals that depend on the magnetization in the area of examination influenced by this change; and (d) evaluating said signals to obtain information about the spatial distribution of the signals in the area of examination. The area of examination in the colon preferably comprises a portion or segment of the colon and steps (a) to (c) may be carried out during an entire peristaltic cycle in said colon portion or segment. The present invention further relates to a corresponding method for collecting data, the use of a magnetic particle for colon screening via Magnetic Particle Imaging, a food stuff or liquid for in vivo diagnostic use comprising a magnetic particle, and a method for preparing a patient for colon screening by using Magnetic Particle Imaging.
    • 本发明涉及一种通过使用磁性粒子成像进行结肠筛查的方法,包括以下步骤:(a)产生具有磁场强度的空间分布的成像磁场,使得冒号中的检查区域由第一 具有较低磁场强度的结肠的子区域,其中预先输送到结肠的磁性颗粒的磁化不饱和,以及具有较高磁场强度的结肠的第二子区域,其中磁化强度 的所述磁性颗粒饱和;(b)改变检查区域中两个子区域的空间位置,使得所述颗粒的磁化在局部变化; (c)获取取决于受该变化影响的检查区域的磁化强度的信号; 和(d)评估所述信号以获得关于检查区域中的信号的空间分布的信息。 结肠检查的区域优选包含结肠的一部分或部分,并且步骤(a)至(c)可以在结肠部分或段中的整个蠕动循环期间进行。 本发明还涉及用于收集数据的相应方法,通过磁性粒子成像进行结肠筛选的磁性颗粒的使用,用于包括磁性颗粒的体内诊断用途的食物或液体,以及用于制备患者的方法 使用磁粉成像进行结肠筛查。
    • 19. 发明申请
    • APPARATUS AND METHOD FOR MEASURING THE INTERNAL PRESSURE OF AN EXAMINATION OBJECT
    • 用于测量检查对象内部压力的装置和方法
    • WO2011030249A1
    • 2011-03-17
    • PCT/IB2010/053702
    • 2010-08-17
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBHGLEICH, BernhardSCHMALE, Ingo
    • GLEICH, BernhardSCHMALE, Ingo
    • A61B5/021A61B5/05
    • A61B5/05A61B5/02007A61B5/021A61B5/0515
    • The present invention relates to an apparatus (100) for measuring the internal pressure of an examination object, in particular the internal pressure of a blood vessel, by use of a magnetic pressure measurement device (60, 70) introduced into the examination object, which apparatus comprises: - magnetic field generating means comprising magnetic field signal generator units (130) and magnetic field coils (136a, 136b, 136c) for generating a magnetic field for influencing the magnetization of the magnetic pressure measurement device (60, 70), receiving means comprising at least one signal receiving unit (140) and at least one receiving coil (148) for acquiring detection signals, which detection signals depend on the changes in magnetization of the magnetic pressure measurement device (60, 70) caused by the magnetic field and on the changes of the physical properties of the magnetic pressure measurement device caused by the internal pressure of the examination object, and evaluation means (153) for evaluating the detection signals of the magnetic pressure measurement device (60, 70) for determining the internal pressure of the examination object.
    • 本发明涉及一种用于通过使用引入检查对象的磁压力测量装置(60,70)来测量检查对象的内部压力,特别是血管的内部压力的装置(100),其中 装置包括: - 磁场产生装置,包括磁场信号发生器单元(130)和用于产生用于影响磁压力测量装置(60,70)的磁化的磁场的磁场线圈(136a,136b,136c)), 包括至少一个信号接收单元(140)和用于获取检测信号的至少一个接收线圈(148)的装置,所述检测信号取决于由磁场引起的磁压力测量装置(60,70)的磁化变化 以及由检查对象的内部压力引起的磁压力测量装置的物理性质的变化以及评价装置 (153),用于评估用于确定检查对象的内部压力的磁压力测量装置(60,70)的检测信号。
    • 20. 发明申请
    • APPARATUS AND METHOD FOR INFLUENCING AND/OR DETECTING MAGNETIC PARTICLES IN A FIELD OF VIEW
    • 在视场中影响和/或检测磁性颗粒的装置和方法
    • WO2011030247A1
    • 2011-03-17
    • PCT/IB2010/053684
    • 2010-08-16
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBHRAHMER, Jürgen, ErwinGLEICH, BernhardWEIZENECKER, Jürgen
    • RAHMER, Jürgen, ErwinGLEICH, BernhardWEIZENECKER, Jürgen
    • A61B5/05
    • A61B5/05A61B5/0515
    • The present invention relates to an apparatus (100) for influencing and/or detecting magnetic particles in a field of view (28), wherein the field of view (28) comprises at least one sub field of interest covering at least a portion of an object of interest containing magnetic particles. The apparatus (100) applying the known principle of Magnetic Particle Imaging (MPI) comprises selection means for generating a magnetic selection field (50) having the known field pattern showing a field free point (FFP), drive means for changing the position in space of the FFP by means of a magnetic drive field, receiving means for acquiring detection signals depending on the magnetization of the magnetic particles within the field of view (28), a control unit (150) for controlling a signal receiving unit (140) comprised in the receiving means for acquiring a set of high resolution detection signals and a set of low resolution detection signals, wherein the set of high resolution detection signals depends on the magnetization of at least one subfield of interest and the set of low resolution detection signals depends on the magnetization of at least one adjacent subfield being arranged adjacent to the at least one subfield of interest, and a reconstruction unit (152) for reconstructing a particle distribution quantity depending on the set of high resolution detection signals and the set of low resolution detection signals. The present invention further relates to a corresponding method as well as to a computer program.
    • 本发明涉及一种用于在视场(28)中影响和/或检测磁性颗粒的设备(100),其中视场(28)包括至少一个感兴趣的子场,其覆盖至少一部分 感兴趣的物体包含磁性颗粒。 应用已知的磁性粒子成像原理(MPI)的装置(100)包括选择装置,用于产生具有示出场自由点(FFP)的已知场模式的磁选择场(50),用于改变空间位置的驱动装置 通过磁驱动场的FFP的接收装置,用于获取取决于视野内的磁性颗粒的磁化强度的检测信号的接收装置,用于控制信号接收单元(140)的控制单元(150) 在用于获取一组高分辨率检测信号和一组低分辨率检测信号的接收装置中,其中该组高分辨率检测信号取决于至少一个感兴趣的子场的磁化,并且该组低分辨率检测信号取决于 在与至少一个感兴趣的子场相邻地布置的至少一个相邻子场的磁化上,以及用于重构的重建单元(152) 根据高分辨率检测信号和一组低分辨率检测信号来设定粒子分布量。 本发明还涉及相应的方法以及计算机程序。