公开(公告)号：US07990146B2

公开(公告)日：2011-08-02

申请号：US12446656

申请日：2008-04-02

申请人： Razvan Lazar ,  Wolfgang Renz

发明人： Razvan Lazar ,  Wolfgang Renz

IPC分类号： G01V3/00

CPC分类号： G01R33/34046 ,  G01R33/34076 ,  G01R33/3642 ,  G01R33/3657 ,  G01R33/422

摘要： A transmission antenna for magnetic resonance applications has a birdcage-like structure that includes antenna rods proceeding between first and second terminating elements respectively located at opposite ends of the antenna rods. A detuning circuit is located at the second terminating element. Either the second terminating element is formed as a completely continuous short circuit ring and the detuning circuit is arranged between the ends of the antenna rods and the second terminating element, or the second terminating element has a number of ferrule segments, between which the detuning circuit is arranged. The second terminating element has a larger cross-section than a the first terminating element.

摘要翻译： 用于磁共振应用的发射天线具有鸟笼状结构，其包括分别位于天线杆的相对端的第一和第二终端元件之间的天线杆。 失谐电路位于第二端接元件。 第二端接元件形成为完全连续的短路环，并且失谐电路被布置在天线杆和第二端接元件的端部之间，或者第二端接元件具有多个套圈段，在其之间，失谐电路 被安排。 第二端接元件具有比第一端接元件更大的横截面。

公开(公告)号：US07663368B2

公开(公告)日：2010-02-16

申请号：US12018333

申请日：2008-01-23

申请人： Razvan Lazar ,  Wolfgang Renz ,  Thorsten Speckner

发明人： Razvan Lazar ,  Wolfgang Renz ,  Thorsten Speckner

IPC分类号： G01V3/00

CPC分类号： G01R33/341 ,  G01R33/3415 ,  G01R33/5659

摘要： An arrangement for radiation of a radio-frequency field into an examination subject has a local coil unit with a housing. An insulating dielectric material is embodied at least at one part of the housing in order to passively compensate an inhomogeneity of the B1 field that occurs in the examination subject. An adjustment arrangement allows for fixed but detachable provision of the insulating dielectric material at the housing part.

摘要翻译： 用于将射频场辐射到检查对象中的布置具有带壳体的局部线圈单元。 绝缘介电材料至少体现在壳体的一部分上，以便被动地补偿在检查对象中发生的B1场的不均匀性。 调节装置允许绝缘电介质材料在壳体部分固定但可拆卸地设置。

公开(公告)号：US20100182010A1

公开(公告)日：2010-07-22

申请号：US12692053

申请日：2010-01-22

申请人： Alexander Granzer ,  Razvan Lazar ,  Wolfgang Renz

发明人： Alexander Granzer ,  Razvan Lazar ,  Wolfgang Renz

IPC分类号： G01V3/00 ,  H01R43/00

CPC分类号： G01R33/34007 ,  G01R33/34046 ,  G01R33/34076 ,  G01R33/3657 ,  H05K3/0052 ,  H05K3/303 ,  H05K2201/049 ,  H05K2201/0909 ,  H05K2201/09181 ,  Y02P70/613 ,  Y10T29/49117

摘要： Efficient mounting of a module to a whole-body coil of a magnetic resonance apparatus is enabled by a circuit board with conductive contact regions located at least in the area of an edge of the circuit board, with which contact regions contacts of an electronic module for a magnetic resonance apparatus are connected in a conductive manner. The contact regions of the circuit board are configured for electrical contact with the whole-body coil.

摘要翻译： 通过具有至少位于电路板的边缘区域中的导电接触区域的电路板来实现将模块有效地安装到磁共振设备的全身线圈，通过该电路板与电子模块的接触区域接触， 以导电方式连接磁共振装置。 电路板的接触区域被配置为与全身线圈电接触。

公开(公告)号：US20090267606A1

公开(公告)日：2009-10-29

申请号：US12446656

申请日：2008-04-02

申请人： Razvan Lazar ,  Wolfgang Renz

发明人： Razvan Lazar ,  Wolfgang Renz

IPC分类号： G01R33/34

CPC分类号： G01R33/34046 ,  G01R33/34076 ,  G01R33/3642 ,  G01R33/3657 ,  G01R33/422

摘要： A transmission antenna for magnetic resonance applications has a birdcage-like structure that includes antenna rods proceeding between first and second terminating elements respectively located at opposite ends of the antenna rods. A detuning circuit is located at the second terminating element. Either the second terminating element is formed as a completely continuous short circuit ring and the detuning circuit is arranged between the ends of the antenna rods and the second terminating element, or the second terminating element has a number of ferrule segments, between which the detuning circuit is arranged. The second terminating element has a larger cross-section than a the first terminating element.

摘要翻译： 用于磁共振应用的发射天线具有鸟笼状结构，其包括分别位于天线杆的相对端的第一和第二终端元件之间的天线杆。 失谐电路位于第二端接元件。 第二端接元件形成为完全连续的短路环，并且失谐电路被布置在天线杆和第二端接元件的端部之间，或者第二端接元件具有多个套圈段，在其之间，失谐电路 被安排。 第二端接元件具有比第一端接元件更大的横截面。

公开(公告)号：US20050110493A1

公开(公告)日：2005-05-26

申请号：US10953303

申请日：2004-09-29

申请人： Thorsten Feiweier ,  Razvan Lazar ,  Wolfgang Renz ,  Lothar Schon

发明人： Thorsten Feiweier ,  Razvan Lazar ,  Wolfgang Renz ,  Lothar Schon

IPC分类号： G01R33/341 ,  G01V3/00

CPC分类号： G01R33/341

摘要： A local coil unit for a magnetic resonance apparatus, which radiates a radio-frequency field into an examination subject, has a housing and at least a part of the housing is formed of an insulating dielectric material that passively compensates for an inhomogeneity in the high-frequency field in the subject. The material has a relative dielectric value εr of greater than 50, preferably greater than 100, and a dielectric loss factor tan δ of less than 2.5×10−2, preferably less than 1×10−3. In the dielectric material displacement currents are generated which create an additional magnetic field that compensates for the minima in the B1 field as a result of the eddy currents arising in the patient due to the radio-frequency radiation.

摘要翻译： 用于将射频场辐射到检查对象中的磁共振设备的局部线圈单元具有壳体，并且壳体的至少一部分由绝缘电介质材料形成，被动地补偿高频场中的不均匀性， 频率场。 该材料具有大于50，优选大于100的相对电介质值εL r以及低于2.5×10 -2的介电损耗因子tanδ，优​​选地较小 超过1×10 -3 -3。 在电介质材料中，产生位移电流，其产生额外的磁场，其由于射频辐射而在患者体内产生的涡流的结果来补偿B1场中的最小值。

公开(公告)号：US07421747B2

公开(公告)日：2008-09-09

申请号：US10726251

申请日：2003-12-02

申请人： Ludwig Eberler ,  Michael Eberler ,  Wolfgang Renz ,  Guenther Zebelein

发明人： Ludwig Eberler ,  Michael Eberler ,  Wolfgang Renz ,  Guenther Zebelein

IPC分类号： A61B6/04

CPC分类号： G01R33/28

摘要： A device to install and remove a structural component in and from a medical large device has a guide system that simplifies the difficult handling of the structural component due to the size or the weight of the structural component. The guide system has a first guide rail that can be positioned on a height-adjustable patient bed of the large device, and a guide groove which is arranged on the structural component. Additionally, another second guide rail can be attached to the medical large device, which forms an extension of the first guide rail when the patient bed is correspondingly positioned. With this device the structural component can be easily raised and lowered with the aid of the height-adjustable patient bed, and can easily be slid into and out of the large device when the first and second rails are at the same height.

摘要翻译： 用于在医用大型装置中安装和移除结构部件的装置具有引导系统，其简化了由于结构部件的尺寸或重量而导致的结构部件的难以处理。 引导系统具有能够定位在大型装置的高度可调的患者床上的第一导轨和布置在结构部件上的引导槽。 此外，另一个第二导轨可以附接到医疗大型装置，当患者床相应地定位时，形成第一导轨的延伸部。 借助该装置，借助于高度可调节的患者床，结构部件可以容易地升高和降低，并且当第一和第二导轨处于相同的高度时，可容易地滑入和移出大型装置。

公开(公告)号：US20080054901A1

公开(公告)日：2008-03-06

申请号：US11845833

申请日：2007-08-28

申请人： Ludwig Eberler ,  Wolfgang Renz ,  Guenther Zebelein

发明人： Ludwig Eberler ,  Wolfgang Renz ,  Guenther Zebelein

IPC分类号： G01V3/00

CPC分类号： G01R33/28 ,  G01R33/288

摘要： A dividing wall made from at least one first wall material for delimitation of a patient positioning region from an antenna structure of a magnetic resonance tomography apparatus has at least one region at which a specific sub-structure of the antenna structure is located on the side of the dividing wall facing away from the patient positioning region, at which the dividing wall has a wall part made from a second wall material with a dielectric constant that is lower than the dielectric constant of the first wall material.

摘要翻译： 用于从磁共振断层摄影装置的天线结构定界患者定位区域的至少一个第一壁材料制成的分隔壁具有至少一个区域，在该区域中天线结构的特定子结构位于 所述分隔壁背离所述患者定位区域，所述分隔壁具有由第二壁材料制成的壁部分，所述壁部分的介电常数低于所述第一壁材料的介电常数。

公开(公告)号：US20090315784A1

公开(公告)日：2009-12-24

申请号：US12487728

申请日：2009-06-19

申请人： Ludwig Eberler ,  Wolfgang Renz

发明人： Ludwig Eberler ,  Wolfgang Renz

IPC分类号： H01Q1/26

CPC分类号： G01R33/34076 ,  G01R33/341 ,  G01R33/3415 ,  G01R33/36 ,  G01R33/365 ,  G01R33/3657 ,  G01R33/3685

摘要： An antenna structure for a magnetic resonance device constructed as a radiating or transmitting antenna of the magnetic resonance device, has a non-metallic antenna conductor containing a discharge gas. When energy is imparted to the discharge gas, the antenna conductor forms an electrically conducting gas discharge column and can be used as an electrically conducting antenna element.

摘要翻译： 构成磁共振装置的辐射或发射天线的磁共振装置的天线结构具有含有放电气体的非金属天线导体。 当向放电气体施加能量时，天线导体形成导电气体放电柱，并且可以用作导电天线元件。

公开(公告)号：US07501826B2

公开(公告)日：2009-03-10

申请号：US11845833

申请日：2007-08-28

申请人： Ludwig Eberler ,  Wolfgang Renz ,  Guenther Zebelein

发明人： Ludwig Eberler ,  Wolfgang Renz ,  Guenther Zebelein

IPC分类号： G01V3/00

CPC分类号： G01R33/28 ,  G01R33/288

摘要： A dividing wall made from at least one first wall material for delimitation of a patient positioning region from an antenna structure of a magnetic resonance tomography apparatus has at least one region at which a specific sub-structure of the antenna structure is located on the side of the dividing wall facing away from the patient positioning region, at which the dividing wall has a wall part made from a second wall material with a dielectric constant that is lower than the dielectric constant of the first wall material.

摘要翻译： 用于从磁共振断层摄影装置的天线结构定界患者定位区域的至少一个第一壁材料制成的分隔壁具有至少一个区域，在该区域中天线结构的特定子结构位于 所述分隔壁背离所述患者定位区域，所述分隔壁具有由第二壁材料制成的壁部分，所述壁部分的介电常数低于所述第一壁材料的介电常数。

公开(公告)号：US08108027B2

公开(公告)日：2012-01-31

申请号：US12213656

申请日：2008-06-23

申请人： Ludwig Kreischer ,  Jürgen Nistler ,  Martin Rausch ,  Wolfgang Renz ,  Norbert Rietsch

发明人： Ludwig Kreischer ,  Jürgen Nistler ,  Martin Rausch ,  Wolfgang Renz ,  Norbert Rietsch

IPC分类号： A61B5/05

CPC分类号： G01R33/481 ,  A61B6/037 ,  A61B6/4417 ,  G01R33/56509

摘要： A combined positron emission tomography/magnetic resonance imaging apparatus including a positron emission tomography apparatus having at least one radiation detector, and a magnetic resonance imaging apparatus having at least one gradient coil and a radio-frequency antenna device. At least one embodiment of the combined position emission tomography/magnetic resonance imaging apparatus is developed further in that a first molding is provided, whose surface coincides with the inner shell of the at least one gradient coil, and a second molding is provided, whose surface coincides with the outer shell of the radiation detector, the distance between the two shells being virtually constant over the circumference of the shells, and a vacuum seal being arranged in each case along at least a first and a second circumferential line such that a closed cavity is formed between the vacuum seals.

摘要翻译： 包括具有至少一个辐射检测器的正电子发射断层摄影装置和具有至少一个梯度线圈和射频天线装置的磁共振成像装置的组合正电子发射断层摄影/磁共振成像装置。 组合位置发射断层摄影/磁共振成像装置的至少一个实施例被进一步开发，其中提供了第一模制件，其表面与至少一个梯度线圈的内壳重合，并且提供了第二模制件，其表面 与辐射检测器的外壳重合，两个壳体之间的距离在壳体的圆周上基本上恒定，并且真空密封件沿着至少第一和第二圆周线布置在每种情况下，使得闭合腔 形成在真空密封件之间。