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1. 发明申请

WO2004038443A1 CONNECTION LEAD FOR AN ELECTRICAL ACCESSORY DEVICE OF AN MRI SYSTEM 审中-公开
标题翻译：用于MRI系统的电气附件装置的连接引线
公开(公告)号：WO2004038443A1
公开(公告)日：2004-05-06
申请号：PCT/IB2003/004589
申请日：2003-10-15
申请人： PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KONINKLIJKE PHILIPS ELECTRONICS N.V. , SCHULZ, Volkmar , GLEICH, Bernhard
发明人： SCHULZ, Volkmar , GLEICH, Bernhard
IPC分类号： G01R33/36
CPC分类号： G01R33/288 , G01R33/285 , G01R33/34084 , G01R33/3685
摘要： A magnetic resonance imaging apparatus is provided with one or more electrical accessory devices, for example, catheters (10) or RF body coils (6), which are intended for use during the examination of an object, as well as with a connection lead (13) which is arranged so as to extend through an examination zone (1) of the magnetic resonance imaging apparatus, which zone can be exposed to an RF field, and to connect the accessory device to a connection unit (12). In order to avoid heating of the connection lead (13) due to currents induced in the connection lead by the RF field, which currents could lead to injury of a patient or damage of the accessory device or the connection unit (12), the connection lead (13) comprises at least one lead segment (131, 132, ...) which has a length which is limited by at least one inductive coupling element, e.g. a transformer (141, 142, ...; 161, 162, ...) and is unequal to n*/2, where denotes the RF wavelength and n = 1, 2, 3, .....
摘要翻译：磁共振成像装置设置有一个或多个电子附件装置，例如导管（10）或RF体线圈（6），其用于在检查物体期间使用，以及连接引线（ 13），其布置成延伸穿过磁共振成像设备的检查区域（1），该区域可以暴露于RF场，并将附件设备连接到连接单元（12）。为了避免由于RF场引起的连接引线中的电流引起的连接引线（13）的加热，哪些电流可能导致患者的伤害或附件装置或连接单元（12）的损坏，连接引线（13）包括至少一个引线段（131,132，...），其具有被至少一个电感耦合元件限制的长度，例如变压器（141,142，...; 161,162，...），并且不等于n * / 2，其中表示RF波长，n = 1,2,3。

2. 发明申请

WO2003062846A2 COIL SYSTEM FOR AN MR APPARATUS AND AN MR APPARATUS PROVIDED WITH SUCH A COIL SYSTEM 审中-公开
标题翻译：用于MR设备的线圈系统和提供有这种线圈系统的MR设备
公开(公告)号：WO2003062846A2
公开(公告)日：2003-07-31
申请号：PCT/IB2003/000086
申请日：2003-01-15
申请人： PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KONINKLIJKE PHILIPS ELECTRONICS N.V. , SCHULZ, Volkmar , GLEICH, Bernhard , WEIZENECKER, Jürgen
发明人： SCHULZ, Volkmar , GLEICH, Bernhard , WEIZENECKER, Jürgen
IPC分类号： G01R33/385
CPC分类号： G01R33/385
摘要： A coil system (210) for an apparatus operating in conformity with the spin resonance or magnetic resonance (MR) method encloses an examination space (217) which extends along an axis (218) and is intended to receive a patient (215). It includes an inner RF coil (219), an inner sub-coil (213') which externally encloses the RF coil (219) and projects beyond the RF coil (219) in the axial direction at both sides, and an active shield (212) which externally encloses the inner sub-coil (213') and constitutes a gradient coil arrangement in conjunction with the inner sub-coil (213'). For specified gradients, the energy required for the gradient coil arrangement (213', 212) in such a coil system is reduced in that the volume occupied by the inner sub-coil (213') is extended in the axial direction by way of regions extending beyond the RF coil (219) in the direction of the axis (218). It is an essential aspect that generally three gradient coils are accommodated in the volume enclosed by the gradient coil arrangement (213', 212). This layered arrangement produces three mutually perpendicular gradient fields as usual. However, it is not necessary to calculate these fields to be such that they extend perpendicularly to one another. All three coil arrangements per se require a smaller energy component in comparison with the normal case.
摘要翻译：用于根据自旋共振或磁共振（MR）方法操作的设备的线圈系统（210）包围沿着轴（218）延伸的检查空间（217）并且旨在接收患者（215）。它包括内部RF线圈（219），在外部包围RF线圈（219）并在两侧沿轴向超出RF线圈（219）的内部子线圈（213'），以及有源屏蔽（ 212），其在外部包围内部子线圈（213'）并且与内部子线圈（213'）一起构成梯度线圈布置。对于指定的梯度，这种线圈系统中的梯度线圈装置（213'，212）所需的能量减少，因为内部子线圈（213'）占据的体积通过区域在轴线（218）的方向上延伸超出RF线圈（219）。通常三个梯度线圈容纳在由梯度线圈装置（213'，212）包围的体积中是重要的方面。这种分层排列通常会产生三个相互垂直的梯度场。但是，没有必要计算这些字段，使它们彼此垂直延伸。与正常情况相比，所有三种线圈布置本身都需要较小的能量分量。

3. 发明申请

WO2004023153A1 CATHETER FOR USE IN MR IMAGING 审中-公开
标题翻译：导管用于MR成像
公开(公告)号：WO2004023153A1
公开(公告)日：2004-03-18
申请号：PCT/IB2003/003785
申请日：2003-08-25
申请人： PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KONINKLIJKE PHILIPS ELECTRONICS N.V. , SCHULZ, Volkmar , GLEICH, Bernhard
发明人： SCHULZ, Volkmar , GLEICH, Bernhard
IPC分类号： G01R33/28
CPC分类号： G01R33/285
摘要： The invention relates to a catheter which is suitable in particular for use in MR imaging. In order to avoid undesirable heating of the tissue surrounding the catheter by the MR excitation field, the catheter in accordance with the invention comprises: a catheter sleeve (2), a hollow guide channel or lumen (3) within the catheter sleeve (2) for the introduction of a medical instrument, and two electrical conductors (4) which are enclosed by a cable sheath (5) of a dielectric material and serve to transmit RF signals within the catheter envelope (2), the dielectric material having a relative permittivity (∊¿r?) smaller than 4, the diameter of the electrical conductors (4) being between 5 and 50 µm, notably between 10 and 30 µm, and the distance between the electrical conductors (4) being smaller than 300 µm, in particular smaller than 200 µm.
摘要翻译：本发明涉及一种特别适用于MR成像的导管。为了避免由MR激发场引起的导管周围组织的不期望的加热，根据本发明的导管包括：导管套管（2），导管套筒（2）内的中空引导通道或内腔（3）用于引入医疗仪器和由电介质材料的电缆护套（5）包围并用于在导管封套（2）内传输RF信号的两个电导体（4），所述电介质材料具有相对介电常数（＆epsiv;¿r <）小于4，电导体（4）的直径在5和50μm之间，特别是在10和30μm之间，并且电导体（4）之间的距离小于300μm，特别是小于200μm。

4. 发明申请

WO2003062846A3 COIL SYSTEM FOR AN MR APPARATUS AND AN MR APPARATUS PROVIDED WITH SUCH A COIL SYSTEM 审中-公开
公开(公告)号：WO2003062846A3
公开(公告)日：2003-07-31
申请号：PCT/IB2003/000086
申请日：2003-01-15
申请人： PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KONINKLIJKE PHILIPS ELECTRONICS N.V. , SCHULZ, Volkmar , GLEICH, Bernhard , WEIZENECKER, Jürgen
发明人： SCHULZ, Volkmar , GLEICH, Bernhard , WEIZENECKER, Jürgen
IPC分类号： G01R33/385
摘要： A coil system (210) for an apparatus operating in conformity with the spin resonance or magnetic resonance (MR) method encloses an examination space (217) which extends along an axis (218) and is intended to receive a patient (215). It includes an inner RF coil (219), an inner sub-coil (213') which externally encloses the RF coil (219) and projects beyond the RF coil (219) in the axial direction at both sides, and an active shield (212) which externally encloses the inner sub-coil (213') and constitutes a gradient coil arrangement in conjunction with the inner sub-coil (213'). For specified gradients, the energy required for the gradient coil arrangement (213', 212) in such a coil system is reduced in that the volume occupied by the inner sub-coil (213') is extended in the axial direction by way of regions extending beyond the RF coil (219) in the direction of the axis (218). It is an essential aspect that generally three gradient coils are accommodated in the volume enclosed by the gradient coil arrangement (213', 212). This layered arrangement produces three mutually perpendicular gradient fields as usual. However, it is not necessary to calculate these fields to be such that they extend perpendicularly to one another. All three coil arrangements per se require a smaller energy component in comparison with the normal case.

5. 发明申请

WO2011045705A1 DEVICE AND METHOD FOR GENERATING SOFT TISSUE CONTRAST IMAGES 审中-公开
标题翻译：用于产生软组织对比图像的装置和方法
公开(公告)号：WO2011045705A1
公开(公告)日：2011-04-21
申请号：PCT/IB2010/054486
申请日：2010-10-05
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , GLEICH, Bernhard
发明人： GLEICH, Bernhard
IPC分类号： A61B6/02 , G01N23/20
CPC分类号： A61B6/482 , A61B6/4021 , A61B6/4241 , A61B6/483 , A61B6/484
摘要： The present invention relates to a device for generating soft tissue contrast images of an area of interest of an examination object (5) comprising soft tissue. The proposed device comprises: an x-ray source unit (2, 3) for emitting one or more pulsed pencil x-ray beams (4), an actuator (8, 9) for actuating said x-ray source unit (2, 3) along and/or around said area of interest to direct said one or more pencil beams (11) onto said area of interest from various directions, an electromagnetic signal receiver (11) for receiving electromagnetic signals from the area of interest resulting from absorption and scatter of x-ray photons within the area of interest, and a signal processor unit (12) for processing said received electromagnetic signals and reconstructing a soft tissue contrast image of the area of interest.
摘要翻译：本发明涉及一种用于产生包含软组织的检查对象（5）的感兴趣区域的软组织对比度图像的装置。所提出的装置包括：用于发射一个或多个脉冲的铅笔x射线束（4）的X射线源单元（2,3），用于致动所述x射线源单元（2,3）的致动器（8,9））沿着所述感兴趣区域和/或周围，以将所述一个或多个笔形射束（11）从各个方向引导到所述感兴趣的区域上;电磁信号接收器（11），用于接收来自由吸收产生的感兴趣区域的电磁信号;以及 x射线光子在感兴趣区域内的散射;以及信号处理器单元（12），用于处理所述接收的电磁信号并重建感兴趣区域的软组织对比度图像。

6. 发明申请

WO2008078276A1 ARRANGEMENT AND METHOD FOR DETECTING AND/OR LOCATING A MAGNETIC MATERIAL IN A REGION OF ACTION, USE OF AN ARRANGEMENT IN THE EXAMINATION OF BUILDINGS 审中-公开
标题翻译：在行动区域检测和/或定位磁性材料的安排和方法，在检查建筑物时使用安排
公开(公告)号：WO2008078276A1
公开(公告)日：2008-07-03
申请号：PCT/IB2007/055178
申请日：2007-12-17
申请人： PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KONINKLIJKE PHILIPS ELECTRONICS N.V. , GLEICH, Bernhard , WEIZENECKER, Jürgen
发明人： GLEICH, Bernhard , WEIZENECKER, Jürgen
IPC分类号： G01V3/08 , G01R33/60
CPC分类号： G01R33/12
摘要： An arrangement and a method for detecting and/or locating magnetic material, and the use of an arrangement in the examination of buildings 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 material changes locally, 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, wherein the magnetic selection field comprises at least a time-variable field component varying at a frequency of at least about 100 Hz.
摘要翻译：公开了一种用于检测和/或定位磁性材料的装置和方法，以及在建筑物检查中使用一种装置，该装置包括：用于产生具有其磁场强度空间中的图案的磁选择场的选择装置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形成在作用区域中，用于改变该区域中两个子区域的空间位置的驱动装置通过磁驱动场的作用，使得磁性材料的磁化在局部变化，用于获取检测信号的接收装置，该检测信号取决于作用区域中的磁化强度，该磁化受位置变化的影响在所述第一和第二子区域的空间中，其中所述磁选择场包括至少一个随时间变化的场分量至少约100Hz。

7. 发明申请

WO2008078269A3 ARRANGEMENT AND METHOD FOR INFLUENCING AND/OR DETECTING MAGNETIC PARTICLES IN A REGION OF ACTION, COIL ARRANGEMENT 审中-公开
公开(公告)号：WO2008078269A3
公开(公告)日：2008-07-03
申请号：PCT/IB2007/055165
申请日：2007-12-17
申请人： PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KONINKLIJKE PHILIPS ELECTRONICS N.V. , GLEICH, Bernhard , WEIZENECKER, Juergen
发明人： GLEICH, Bernhard , WEIZENECKER, Juergen
IPC分类号： G01N27/00
摘要： 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 arrangement comprises a coil arrangement comprising a surrounding coil and a magnetic field generator such that the surrounding coil almost completely surrounds the magnetic field generator.

8. 发明申请

WO2008078266A3 METHOD AND ARRANGEMENT FOR LOCATING MAGNETIC MARKERS IN A REGION OF ACTION 审中-公开
公开(公告)号：WO2008078266A3
公开(公告)日：2008-07-03
申请号：PCT/IB2007/055162
申请日：2007-12-17
申请人： PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KONINKLIJKE PHILIPS ELECTRONICS N.V. , GLEICH, Bernhard
发明人： GLEICH, Bernhard
IPC分类号： A61B5/00 , G01N27/00
摘要： A method and an arrangement for influencing and/or detecting and/or locating magnetic markers in a region of action is disclosed, which method comprises the steps of: generating a magnetic drive field so that the magnetization of the magnetic marker changes, generating a magnetic selection field having a pattern in space of its magnetic field strength providing a magnetic field gradient in the region of action, acquiring a first signal by means of a first receiving probe and acquiring a second signal by means of a second receiving probe, the first receiving probe and the second receiving probe being located at different locations relative to the region of action, the first signal and the second signal depending on the magnetization of the magnetic marker in the drive field and in the selection field and further depending on the location of the magnetic marker, the magnetic selection field having a first magnetic field strength configuration, repeating at least once the acquisition of the first signal and of the second signal in the presence of the selection field having a second magnetic field strength configuration, computing an estimation of the location of the magnetic marker by means of the acquired signals.

9. 发明申请

WO2006067703A2 TRANSMISSION PATH FOR USE IN RF FIELDS 审中-公开
标题翻译：传输路径用于射频场
公开(公告)号：WO2006067703A2
公开(公告)日：2006-06-29
申请号：PCT/IB2005/054267
申请日：2005-12-15
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , GLEICH, Bernhard , VERNICKEL, Peter , WEISS, Steffen , LUEDEKE, Kai-Michael
发明人： GLEICH, Bernhard , VERNICKEL, Peter , WEISS, Steffen , LUEDEKE, Kai-Michael
IPC分类号： G01R33/36
CPC分类号： G01R33/287 , G01R33/3642 , G01R33/3685
摘要： A transmission path (13) for transmitting high frequency (RF) signals is disclosed, which comprises a plurality of lead segments (20, 21, 22) which are coupled to one another on one end by a capacitive coupling element (30) and on the other end by an inductive coupling element (31) and which each have an effective length of approximately λ i /4, wherein λ i is the wavelength of a differential mode signal to be transmitted over the path (13). By providing these element (30, 31) in the form of distributed elements which electrically extend over at least a part of adjacent lead segments (20, 21; 21, 22) a very thin transmission path (13) can be realized, which is especially suitable for use with invasive catheters. Furthermore, this path (13) can be guided through RF fields of a magnetic resonance (MR) imaging system because common mode resonances are effectively suppressed.
摘要翻译：公开了一种用于传输高频（RF）信号的传输路径（13），其包括在一端彼此耦合的多个引线段（20,21,22）电容耦合元件（30），另一端由电感耦合元件（31）耦合，并且每一个都具有大约λ1/4的有效长度，其中λ1，是通过路径（13）传输的差模信号的波长。通过以在相邻引线段（20,21; 21,22）的至少一部分上电延伸的分布元件的形式提供这些元件（30,31），可以实现非常薄的传输路径（13），其是特别适用于侵入性导管。此外，由于共模共振被有效地抑制，所以该路径（13）可以被引导通过磁共振（MR）成像系统的RF场。

10. 发明申请

WO2012077035A1 APPARATUS AND METHOD FOR INFLUENCING AND/OR DETECTING MAGNETIC PARTICLES 审中-公开
标题翻译：影响和/或检测磁性颗粒的装置和方法
公开(公告)号：WO2012077035A1
公开(公告)日：2012-06-14
申请号：PCT/IB2011/055456
申请日：2011-12-05
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , BONTUS, Claas , GLEICH, Bernhard
发明人： BONTUS, Claas , GLEICH, Bernhard
IPC分类号： A61B5/05
CPC分类号： A61B5/0515
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 magnetic particle imaging (MPI). The proposed apparatus comprises selection means for generating a magnetic selection field (50) and drive means for generating a magnetic drive field for moving a field- free point along a predetermined trajectory through the field of view so that the magnetization of the magnetic material changes locally. According to the present invention a time-dependent oscillating drive field current is provided per drive field coil for driving the respective drive field coil, each drive field current having one or more individual oscillating frequencies and one or more individual current amplitudes and being generated by a corresponding drive field voltage per drive field coil (136a, 136b, 136c), each drive field voltage being generated by a superposition of a number of drive field voltage components including a drive field voltage component per drive field coil, wherein a drive field voltage component corresponding to a particular drive field coil comprises one or more sub¬ components, a sub-component having an individual voltage amplitude and having the same individual oscillating frequency as the respective drive field current of said particular drive field coil.
摘要翻译：本发明涉及一种用于影响和/或检测视场（28）中的磁性颗粒的设备和方法，特别是用于磁性颗粒成像（MPI）。所提出的装置包括用于产生磁选区（50）的选择装置和用于产生磁驱动场的驱动装置，用于沿着预定轨迹沿视场移动无场点，使得磁性材料的磁化在局部变化。根据本发明，每个驱动励磁线圈提供时间依赖的振荡驱动场电流，用于驱动相应的驱动场线圈，每个驱动场电流具有一个或多个单个振荡频率和一个或多个单独的电流幅度，并由每个驱动场线圈（136a，136b，136c）的对应的驱动场电压，每个驱动场电压由多个驱动场电压分量的叠加产生，每个驱动场电压分量包括每个驱动场线圈的驱动场电压分量，其中驱动场电压分量对应于特定的驱动场线圈包括一个或多个子组件，具有单个电压振幅并且具有与所述特定驱动场线圈的相应驱动场电流相同的独立振荡频率的子分量。

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