公开(公告)号：US11269033B2

公开(公告)日：2022-03-08

申请号：US17046785

申请日：2019-04-02

申请人： KONINKLIJKE PHILIPS N.V.

发明人： Peter Vernickel ,  Ingo Schmale ,  Oliver Lips

IPC分类号： G01R33/3873 ,  G01R33/38

摘要： The invention relates to a shim iron (130) for use with an magnetic resonance (MR) apparatus (10), wherein the shim iron (130) is comprised of a stack of shim plates (131, 132, 133, 134, 135), wherein at least two of the shim plates (131, 132, 133, 134, 135) comprise slits, the slits forming a respective slit pattern of the slit shim plates (131, 132, 133, 134, 135), and wherein the slit patterns, when viewed from the same viewing direction, are comprised of at least two different slit patterns which may not be brought into congruent coverage with each other. In this way, a shim iron (130) is provided which does not heat up to high temperatures due to eddy currents.

公开(公告)号：US11163026B2

公开(公告)日：2021-11-02

申请号：US16498454

申请日：2018-03-26

申请人： KONINKLIJKE PHILIPS N.V.

发明人： Christoph Leussler ,  Oliver Lips ,  Ingo Schmale

IPC分类号： G01R33/36 ,  G01R33/34

摘要： A magnetic resonance imaging system (100) comprising a main magnet (104) for generating a main magnetic field within an imaging zone (108); a radio frequency, RF, antenna (114), comprising an RF input terminal (300) and an RF output terminal (302); an RF system for supplying radio-frequency power to the RF input terminal (300) to energize the antenna (114), the antenna (114) being further adapted for picking up magnetic resonance signals (144) from the imaging zone (108); a data acquisition system (126) for receiving the magnetic resonance signals (144) from the RF output terminal (302); wherein the RF input terminal (300) is in galvanic connection to the antenna (114) and the RF output terminal (302) is inductively coupled to the antenna (114).

公开(公告)号：US20140306698A1

公开(公告)日：2014-10-16

申请号：US14357795

申请日：2012-11-13

申请人： KONINKLIJKE PHILIPS N.V.

发明人： Claas Bontus ,  Ingo Schmale ,  Bernhard Gleich

IPC分类号： G01R33/02 ,  G01N27/72

CPC分类号： G01R33/02 ,  A61B5/0515 ,  G01N27/72

摘要： The present invention relates to an apparatus and a method for influencing and/or detecting magnetic particles in a field of view (28), in particular for examination of human patients. The apparatus comprises i) selection-and-focus means (120) for generating a magnetic selection-and-focus field (50), wherein said at least one set of selection-and-focus field coils comprises—at least one inner selection-and-focus field coil (113, 115) being formed as a closed loop about an inner coil axis (115a), first inner selection-and-focus field coil (115)—a group of at least two outer selection-and-focus field coils (116-119) arranged at a larger distance from said inner coil axis (115a) than said at least one inner selection-and-focus field coil (113, 115) and at different angular positions, each being formed as a closed loop about an associated outer coil axis (116a-119a), and ii) drive means (120) comprising a drive field signal generator unit (122) and drive field coils (124; 125, 126, 127) for changing the position in space and/or size of the two sub-zones (52, 54) in the field of view (28) by means of a magnetic drive field so that the magnetization of the magnetic material changes locally.

摘要翻译： 本发明涉及用于影响和/或检测视场（28）中的磁性颗粒的装置和方法，特别是用于人类患者的检查。 该装置包括i）用于产生磁选择和聚焦场（50）的选择和聚焦装置（120），其中所述至少一组选择和聚焦场线圈包括 - 至少一个内部选择 - 形成为围绕内部线圈轴线（115a）的闭环的第一内部选择和聚焦场线圈（115） - 至少两个外部选择和聚焦组 与所述至少一个内部选择和聚焦场效应线圈（113,115）相比，布置在比所述内部线圈轴线（115a）更大的距离处的不同角度位置的励磁线圈（116-119），每个形成为闭合 围绕相关联的外部线圈轴线（116a-119a）环路，以及ii）包括驱动场信号发生器单元（122）和用于改变空间位置的驱动场线圈（124; 125,126,127）的驱动装置（120） 和/或视场（28）中的两个子区（52,54）的尺寸，借助于磁驱动场，使得磁垫的磁化强度 当地的变化。

公开(公告)号：US11099249B2

公开(公告)日：2021-08-24

申请号：US16754789

申请日：2018-09-26

申请人： KONINKLIJKE PHILIPS N.V.

发明人： Peter Vernickel ,  Christoph Leussler ,  Ingo Schmale ,  Christian Findeklee ,  Oliver Lips

IPC分类号： G01R33/34 ,  A61B5/055 ,  G01R33/36

摘要： The present invention is directed to a system comprising a body coil (9) for magnetic resonance imaging and an RF amplifier connected to the body coil (9) for feeding the body coil (9) with an RF signal, wherein the body coil (9) comprises two different ports (21, 22) for feeding the RF signal into the body coil (9), the body coil (9) is provided with a switch for selectively activating only one single port (21, 22) for feeding the RF signal to the body coil (9) at a time, and the two ports (21, 22) are located at different locations of the body coil (9) such that the dependence of the reflected part of the RF signal fed into the body coil (9) from the weight of the examination object (1) to which the body coil (9) is applied is different for the two ports (21, 22). In this way, a possibility for adapting a MRI measurement to different load situations due to different weights of an examination object (1) in an easy and efficient way is provided, thereby providing the possibility for impedance matching of the body coil by selecting the appropriate driven port.

公开(公告)号：US09689932B2

公开(公告)日：2017-06-27

申请号：US14357795

申请日：2012-11-13

申请人： KONINKLIJKE PHILIPS N.V.

发明人： Claas Bontus ,  Ingo Schmale ,  Bernhard Gleich

IPC分类号： G01V3/00 ,  A61B5/05 ,  G01V3/10 ,  G01R33/02 ,  G01N27/72

CPC分类号： G01R33/02 ,  A61B5/0515 ,  G01N27/72

摘要： The present invention relates to an apparatus and a method for influencing and/or detecting magnetic particles in a field of view (28), in particular for examination of human patients. The apparatus comprises i) selection-and-focus means (120) for generating a magnetic selection-and-focus field (50), wherein said at least one set of selection-and-focus field coils comprises—at least one inner selection-and-focus field coil (113, 115) being formed as a closed loop about an inner coil axis (115a), first inner selection-and-focus field coil (115)—a group of at least two outer selection-and-focus field coils (116-119) arranged at a larger distance from said inner coil axis (115a) than said at least one inner selection-and-focus field coil (113, 115) and at different angular positions, each being formed as a closed loop about an associated outer coil axis (116a-119a), and ii) drive means (120) comprising a drive field signal generator unit (122) and drive field coils (124; 125, 126, 127) for changing the position in space and/or size of the two sub-zones (52, 54) in the field of view (28) by means of a magnetic drive field so that the magnetization of the magnetic material changes locally.

公开(公告)号：US09370315B2

公开(公告)日：2016-06-21

申请号：US14705047

申请日：2015-05-06

申请人： KONINKLIJKE PHILIPS N.V.

发明人： Ingo Schmale ,  Bernhard Gleich

IPC分类号： G01V3/00 ,  A61B5/05 ,  G01R33/10

CPC分类号： A61B5/0515 ,  G01R33/10

摘要： The present invention relates to an apparatus and a method for influencing and/or detecting magnetic particles in a field of view (28). The apparatus comprises selection means for generating a magnetic selection field (50) and drive and receiving means comprising one or more combined drive field and selection coils (441) for changing the position in space of the two sub-zones (52, 54) in the field of view (28) and for acquiring detection signals. A balanced bridge unit (160) comprising inductive or capacitive coupling elements (411, 421) is provided between the drive field signal generator unit (122) and the signal receiving unit (140) as a light-weight, inexpensive and easily implementable solution for reducing the harmonic background.

摘要翻译： 本发明涉及在视场（28）中影响和/或检测磁性粒子的装置和方法。 该装置包括用于产生磁选区（50）的选择装置和包括一个或多个组合驱动场和选择线圈（441）的驱动和接收装置，用于改变两个子区（52,54）的空间位置 视场（28）并用于获取检测信号。 包括电感或电容耦合元件（411,421）的平衡桥单元（160）设置在驱动场信号发生器单元（122）和信号接收单元（140）之间，作为重量轻，便宜且易于实施的解决方案，用于 减少谐波背景。

公开(公告)号：US11194000B2

公开(公告)日：2021-12-07

申请号：US16960107

申请日：2019-01-10

申请人： KONINKLIJKE PHILIPS N.V.

发明人： Christoph Leussler ,  Peter Vernickel ,  Oliver Lips ,  Ingo Schmale ,  Daniel Wirtz

IPC分类号： G01R33/3875 ,  G01R33/24 ,  G01R33/34 ,  G01R33/36 ,  G01R33/54 ,  G01R33/56 ,  G01R33/565

摘要： The invention provides for a magnetic resonance imaging system (100) comprising a radio frequency system (116, 114, 118) configured for acquiring magnetic resonance data (144) from an imaging zone (108). The radio frequency system is configured for sending and receiving radio frequency signals to acquire the magnetic resonance data, wherein the radio frequency system comprises: an elliptical transmission coil (114) configured for generating a B1+ excitation field within the imaging zone; and an active B1 shim coil (118) configured for being placed within the imaging zone, wherein the radio frequency system is configured for suppling radio frequency power to the active B1 shim coil during the generation of the B1+ excitation field by the elliptical transmission coil, wherein the B1 shim coil is configured for shimming the B1+ excitation field within the imaging zone.

公开(公告)号：US20210181280A1

公开(公告)日：2021-06-17

申请号：US17046785

申请日：2019-04-02

申请人： KONINKLIJKE PHILIPS N.V.

发明人： Peter Vernickel ,  Ingo Schmale ,  Oliver LIPS

IPC分类号： G01R33/3873 ,  G01R33/38

摘要： The invention relates to a shim iron (130) for use with an magnetic resonance (MR) apparatus (10), wherein the shim iron (130) is comprised of a stack of shim plates (131, 132, 133, 134, 135), wherein at least two of the shim plates (131, 132, 133, 134, 135) comprise slits, the slits forming a respective slit pattern of the slit shim plates (131, 132, 133, 134, 135), and wherein the slit patterns, when viewed from the same viewing direction, are comprised of at least two different slit patterns which may not be brought into congruent coverage with each other. In this way, a shim iron (130) is provided which does not heat up to high temperatures due to eddy currents.

公开(公告)号：US20210063517A1

公开(公告)日：2021-03-04

申请号：US16960107

申请日：2019-01-10

申请人： KONINKLIJKE PHILIPS N.V.

发明人： Christoph Leussler ,  Peter Vernickel ,  Oliver Lips ,  Ingo Schmale ,  Daniel Wirtz

IPC分类号： G01R33/3875 ,  G01R33/565 ,  G01R33/54 ,  G01R33/36 ,  G01R33/34 ,  G01R33/24 ,  G01R33/56

摘要： The invention provides for a magnetic resonance imaging system (100) comprising a radio frequency system (116, 114, 118) configured for acquiring magnetic resonance data (144) from an imaging zone (108). The radio frequency system is configured for sending and receiving radio frequency signals to acquire the magnetic resonance data, wherein the radio frequency system comprises: an elliptical transmission coil (114) configured for generating a B1+ excitation field within the imaging zone; and an active B1 shim coil (118) configured for being placed within the imaging zone, wherein the radio frequency system is configured for suppling radio frequency power to the active B1 shim coil during the generation of the B1+ excitation field by the elliptical transmission coil, wherein the B1 shim coil is configured for shimming the B1+ excitation field within the imaging zone.

公开(公告)号：US20140320132A1

公开(公告)日：2014-10-30

申请号：US14360994

申请日：2012-11-28

申请人： KONINKLIJKE PHILIPS N.V.

发明人： Ingo Schmale

IPC分类号： G01R33/385

CPC分类号： G01R33/385 ,  A61B5/0515 ,  H01F7/20

摘要： The present invention relates to a coil arrangement, in particular for use in a magnetic particle imaging apparatus (100), comprising a coil split into at least two coil segments, wherein the winding direction is inverted between at least one coil segment to another coil segment, and a capacitor coupled between at least two adjacent coil segments. Further, the present invention relates to such a magnetic particle imaging apparatus, in particular an apparatus (100) for influencing and/or detecting magnetic particles in a field of view (28), which apparatus comprises selection means and drive means (120) wherein at least one drive field coil and/or at least one selection field coil representing a selection field element is implemented by a coil arrangement as proposed according to the present invention.

摘要翻译： 本发明涉及一种线圈装置，特别是用于磁粉成像设备（100）中的线圈装置，包括分成至少两个线圈段的线圈，其中绕组方向在至少一个线圈段与另一线圈段 以及耦合在至少两个相邻线圈段之间的电容器。 此外，本发明涉及这样的磁粉成像装置，特别是涉及在视场（28）中影响和/或检测磁性颗粒的装置（100），该装置包括选择装置和驱动装置（120），其中 通过根据本发明提出的线圈装置来实现表示选择场元件的至少一个驱动场线圈和/或至少一个选择场线圈。