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    • 3. 发明申请
    • METHOD AND APPARATUS FOR INFLUENCING MAGNETIC PARTICLES
    • 影响磁性颗粒的方法和装置
    • WO2004091721A8
    • 2006-03-02
    • PCT/IB2004050442
    • 2004-04-15
    • PHILIPS INTELLECTUAL PROPERTYKONINKL PHILIPS ELECTRONICS NVGLEICH BERNHARDWEIZENECKER JUERGEN
    • GLEICH BERNHARDWEIZENECKER JUERGEN
    • A61N1/40A61N2/02A61N2/06
    • A61N2/06A61B5/0515A61N1/406A61N2/02
    • The invention relates to a method and an apparatus for influencing magnetic particles in a region of action. With the help of an arrangement that has means for generating magnetic fields, a spatially inhomogeneous magnetic field is generated that has at least one zone (301) in which the magnetization of the particles is in a state of non-saturation, whereas it is in a state of saturation in the remaining zone. By displacing the said zone within the region of action, a change in magnetization is produced that can be detected from outside and that gives information on the spatial distribution of the magnetic particles in the region of action. Alternatively, the displacement may also be repeated so frequently that the region of action heats up. To improve the accessibility of the region of action, the said region is situated outside the arrangement having means for generating magnetic fields.
    • 本发明涉及用于影响动作区域中的磁性颗粒的方法和装置。 在具有产生磁场的装置的帮助下,产生空间不均匀的磁场,其具有至少一个区域(301),其中颗粒的磁化处于不饱和状态,而在 剩余区域的饱和状态。 通过在动作区域内移动所述区域,产生可以从外部检测到的磁化变化,并且提供关于磁性颗粒在作用区域中的空间分布的信息。 或者,也可以如此频繁地重复位移,使得作用区域加热。 为了提高作用区域的可达性,所述区域位于具有用于产生磁场的装置的布置之外。
    • 5. 发明申请
    • INFLUENCING AND/OR DETECTING MAGNETIC PARTICLES IN A REGION OF ACTION OF AN EXAMINATION OBJECT
    • 在检查对象的行为区域中影响和/或检测磁性颗粒
    • WO2008078267A3
    • 2008-09-25
    • PCT/IB2007055163
    • 2007-12-17
    • PHILIPS INTELLECTUAL PROPERTYKONINKL PHILIPS ELECTRONICS NVGLEICH BERNHARDWEIZENECKER JUERGEN
    • GLEICH BERNHARDWEIZENECKER JUERGEN
    • A61B5/00
    • A61B5/05A61B5/0515A61B5/415A61B5/418
    • A method and an arrangement for influencing and/or detecting magnetic particles in a region of action of an examination object is disclosed, which method comprises the steps of: generating a magnetic selection field by means of selection means, the magnetic selection field having a pattern in space of its magnetic field strength such that a first sub-zone having a low magnetic field strength and a second sub-zone having a higher magnetic field strength are formed in the region of action, changing the position in space of the two sub-zones in the region of action by means of a magnetic drive field generated by drive means so that the magnetization of the magnetic particles change locally, acquiring signals by means of receiving means, which signals depend on the magnetization in the region of action, which magnetization is influenced by the change in the position in space of the first and second sub-zone, wherein the selection means and/or the drive means and/or the receiving means are provided at least partly movable relative to the examination object during the acquisition and/or the change in the position in space of the two sub-zones in the region of action.
    • 公开了一种用于影响和/或检测检查对象的动作区域中的磁性颗粒的方法和装置,该方法包括以下步骤:通过选择装置产生磁选区,该磁选区具有图案 在其磁场强度的空间中,使得具有低磁场强度的第一子区域和具有较高磁场强度的第二子区域在作用区域中形成,改变两个子场的空间位置, 通过由驱动装置产生的磁驱动场的动作区域,使得磁性颗粒的磁化在局部变化,通过接收装置获取信号,这些信号取决于作用区域中的磁化,该磁化 受到第一和第二子区域的空间位置变化的影响,其中选择装置和/或驱动装置和/或接收装置是 在获取过程中至少部分地相对于检查对象移动,和/或在动作区域中两个子区域的空间位置的改变。
    • 6. 发明申请
    • ARRANGEMENT AND METHOD FOR INFLUENCING AND/OR DETECTING MAGNETIC PARTICLES IN A REGION OF ACTION
    • 影响和/或检测行动区域中的磁性颗粒的装置和方法
    • WO2008078272A3
    • 2008-08-21
    • PCT/IB2007055174
    • 2007-12-17
    • PHILIPS INTELLECTUAL PROPERTYKONINKL PHILIPS ELECTRONICS NVGLEICH BERNHARDWEIZENECKER JUERGEN
    • GLEICH BERNHARDWEIZENECKER JUERGEN
    • A61B5/05
    • A61B5/05A61B5/0515
    • An arrangement for influencing and/or detecting magnetic particles, a method for adjusting such an arrangement and a method for influencing and/or detecting magnetic particles in a region of action is disclosed, which arrangement comprises selection means for generating a magnetic selection field having a pattern in space of its magnetic field strength such that a first sub-zone having a low magnetic field strength and a second sub-zone having a higher magnetic field strength are formed in the region of action, drive means for changing the position in space of the two sub-zones in the region of action by means of a magnetic drive field so that the magnetization of the magnetic particles changes locally, receiving means for acquiring signals, which signals depend on the magnetization in the region of action, which magnetization is influenced by the change in the position in space of the first and second sub-zone, wherein the receiving means comprises a first compensation means and a second compensation means the first and second compensation means comprising each a compensation coil.
    • 公开了一种用于影响和/或检测磁性粒子的装置,一种用于调整这种装置的方法以及一种用于影响和/或检测作用区域中的磁性粒子的方法,该装置包括用于产生磁选择场的选择装置, 在其磁场强度的空间中形成图案,使得在该作用区域中形成具有低磁场强度的第一子区域和具有较高磁场强度的第二子区域;用于改变空间位置的驱动装置 在作用区域中的两个子区域借助磁场驱动磁性粒子的磁化局部改变,用于获取信号的接收装置,该信号取决于作用区域中的磁化,该磁化受到影响 通过改变第一和第二分区的空间位置,其中接收装置包括第一补偿装置和秒 补偿意味着第一和第二补偿装置包括每个补偿线圈。
    • 7. 发明申请
    • MARKER FOR POSITION DETERMINATION WITH A MAGNETIC METHOD
    • 用磁性方法进行位置确定的标记
    • WO2006067664A3
    • 2006-11-02
    • PCT/IB2005054171
    • 2005-12-12
    • PHILIPS INTELLECTUAL PROPERTYKONINKL PHILIPS ELECTRONICS NVGLEICH BERNHARDWEIZENECKER JUERGEN
    • GLEICH BERNHARDWEIZENECKER JUERGEN
    • A61B5/06A61B19/00
    • G01V15/00A61B5/05A61B5/0515A61B5/06A61B2090/3933A61B2090/3954
    • The application relates to a marker whose position in an examination region can be determined by a magnetic method. This method is used to determine the spatial distribution of magnetic particles in an examination region. A spatially inhomogeneous gradient magnetic field is generated, having at least one low field strength region in which the magnetization of the particles is in an unsaturated state, while they are in a saturated state in the rest of the region. Displacing the low field strength region by variation means insid the examination region leads to a change in the magnetization of the magnetic particles, which can be detected externally and contains information about th spatial distribution of the magnetic particles in the examination region. Wit the aid of the markers according to the invention it is also possible to determine the position of objects, or parts of the examination subject in the examination region.
    • 本申请涉及一种可以通过磁性方法确定检查区域的位置的标记物。 该方法用于确定检测区域磁性颗粒的空间分布。 产生空间不均匀的梯度磁场,具有至少一个低场强区域,其中颗粒的磁化处于不饱和状态,而在该区域的其余部分处于饱和状态。 通过变化的方式使低场强度区域发生变化,因为检查区域导致磁性粒子的磁化变化,这可以从外部检测到,并且包含有关磁性粒子在检查区域中的空间分布的信息。 在根据本发明的标记物的帮助下,也可以确定检查对象或检查对象的部分在检查区域中的位置。
    • 9. 发明申请
    • ARRANGEMENT AND METHOD FOR INFLUENCING AND/OR DETECTING MAGNETIC PARTICLES IN A REGION OF ACTION
    • 影响和/或检测行动区域中的磁性颗粒的装置和方法
    • WO2008078244A3
    • 2008-09-25
    • PCT/IB2007055131
    • 2007-12-14
    • PHILIPS INTELLECTUAL PROPERTYKONINKL PHILIPS ELECTRONICS NVGLEICH BERNHARDWEIZENECKER JUERGEN
    • GLEICH BERNHARDWEIZENECKER JUERGEN
    • A61B5/00G01R33/00
    • A61B5/05A61B5/0515
    • An arrangement for influencing and/or detecting magnetic particles, a method for calibrating such an arrangement and a method for influencing and/or detecting magnetic particles in a region of action is disclosed, which arrangement comprises selection means for generating a magnetic selection field having a pattern in space of its magnetic field strength such that a first sub-zone having a low magnetic field strength and a second sub-zone having a higher magnetic field strength are formed in the region of action, drive means for changing the position in space of the two sub-zones in the region of action by means of a magnetic drive field so that the magnetization of the magnetic particles changes locally, the arrangement comprising a drive signal chain, receiving means for acquiring detection signals, which detection signals depend on the magnetization in the region of action, which magnetization is influenced by the change in the position in space of the first and second sub-zone, the arrangement comprising a detection signal chain, wherein the arrangement comprises a compensation controller providing a compensation signal to the drive signal chain and/or to the detection signal chain by means of a coupling means.
    • 公开了一种用于影响和/或检测磁性颗粒的装置,一种用于校准这种装置的方法以及一种用于影响和/或检测作用区域中的磁性颗粒的方法,所述装置包括用于产生磁选择场的选择装置, 在其磁场强度的空间中形成图案,使得在该作用区域中形成具有低磁场强度的第一子区域和具有较高磁场强度的第二子区域;用于改变空间位置的驱动装置 在作用区域中的两个子区域借助磁场驱动,使得磁性粒子的磁化局部改变,该装置包括驱动信号链,用于获取检测信号的接收装置,该检测信号取决于磁化 在磁化受第一和第二子区的空间位置变化影响的作用区中, 包括检测信号链的装置,其中该装置包括补偿控制器,该补偿控制器借助于耦合装置向驱动信号链和/或检测信号链提供补偿信号。