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41. 发明授权

US08064981B2 Device for superimposed MRI and PET imaging 失效
标题翻译：叠加MRI和PET成像装置
公开(公告)号：US08064981B2
公开(公告)日：2011-11-22
申请号：US11984479
申请日：2007-11-19
申请人： Ludwig Eberler , Razvan Lazar , Jürgen Nistler , Wolfgang Renz , Norbert Rietsch
发明人： Ludwig Eberler , Razvan Lazar , Jürgen Nistler , Wolfgang Renz , Norbert Rietsch
IPC分类号： A61B5/05
CPC分类号： G01R33/28 , A61B5/0035 , A61B5/055 , A61B6/037 , G01R33/481 , G01T1/1603
摘要： A device for superposed magnetic resonance tomography and positron emission tomography imaging is disclosed. In at least one embodiment, the device includes a magnetic resonance tomography magnet, which defines a longitudinal axis; a magnetic resonance tomography gradient coil, arranged radially within the magnetic resonance tomography magnet; a magnetic resonance tomography RF coil, arranged radially within the magnetic resonance tomography gradient coil; and a multiplicity of positron emission tomography detection units, arranged in pairs lying opposite to one another about the longitudinal axis. In at least one embodiment, the many positron emission tomography detection units are arranged radially within the magnetic resonance tomography gradient coil and are arranged along the longitudinal axis next to the magnetic resonance tomography RF coil.
摘要翻译：公开了用于叠加磁共振断层扫描和正电子发射断层摄影成像的装置。在至少一个实施例中，该装置包括限定纵轴的磁共振断层摄影磁体; 磁共振断层摄影梯度线圈，位于磁共振断层摄影磁体内; 磁共振断层摄影RF线圈，径向设置在磁共振断层扫描梯度线圈内; 以及多个正电子发射断层摄影检测单元，成对地布置成围绕纵向轴线彼此相对。在至少一个实施例中，许多正电子发射断层摄影检测单元径向布置在磁共振断层扫描梯度线圈内，并且沿着纵向轴线布置在磁共振断层摄影RF线圈旁边。

42. 发明授权

US07990146B2 Birdcage-like transmitting antenna for MRI 失效
标题翻译：鸟笼式发射天线用于MRI
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。

43. 发明授权

US07791344B2 Magnetic resonance RF transmission system and MR system and method using same 有权
标题翻译：磁共振RF传输系统和MR系统及其使用方法
公开(公告)号：US07791344B2
公开(公告)日：2010-09-07
申请号：US12238848
申请日：2008-09-26
申请人： Juergen Nistler , Wolfgang Renz
发明人： Juergen Nistler , Wolfgang Renz
IPC分类号： G01V3/00
CPC分类号： G01R33/3607 , G01R33/5612 , G01R33/5659
摘要： A radio-frequency transmission system for a magnetic resonance system has a radio-frequency amplifier and a signal splitter with two inputs and two outputs. The signal splitter is fashioned so that the power of a radio-frequency signal provided at one of the two inputs is divided between the two outputs. A first input the two inputs of the signal splitter is thereby coupled with the output of the radio-frequency amplifier, and the two outputs of the signal splitter respectively serve for connection to different inputs of a transmission antenna of the magnetic resonance system in order to feed the output signals present at the two outputs of the signal splitter into the transmission antenna. The second input of the signal splitter is terminated with a terminating resistor arrangement with a variable reflection factor.
摘要翻译：用于磁共振系统的射频传输系统具有射频放大器和具有两个输入和两个输出的信号分配器。信号分离器被形成为使得在两个输入之一处提供的射频信号的功率在两个输出之间被划分。因此，信号分离器的两个输入的第一输入由此与射频放大器的输出耦合，并且信号分路器的两个输出端分别用于连接到磁共振系统的发射天线的不同输入，以便将存在于信号分离器的两个输出端的输出信号馈送到发送天线。信号分离器的第二输入端以具有可变反射系数的终端电阻器结构终止。

44. 发明申请

US20100194391A1 COMPENSATION DEVICE TO REDUCE THE ELECTROMAGNETIC FIELD LOAD DUE TO A MEDICAL INTERVENTION APPARATUS IN MAGNETIC RESONANCE EXAMINATIONS 有权
标题翻译：用于减少磁共振检查中的医疗干预装置的电磁场负载的补偿装置
公开(公告)号：US20100194391A1
公开(公告)日：2010-08-05
申请号：US12698282
申请日：2010-02-02
申请人： Wolfgang Renz , Anke Weissenborn
发明人： Wolfgang Renz , Anke Weissenborn
IPC分类号： G01R33/44
CPC分类号： G01R33/287 , A61B5/055 , A61B2017/00911 , G01R33/288
摘要： A compensation device to reduce the electromagnetic field load due to the presence of a medical intervention apparatus in magnetic resonance examinations, has: a control device that has a radio-frequency input and a radio-frequency output, an injection device that is connected with the radio-frequency output and that injects the radio-frequency power delivered by the control device into the medical intervention apparatus, a measurement device that measures at least one electrical variable at the intervention apparatus, and a regulator that is connected with the control device and the measurement device. The regulator adjusts the control device to deliver the radio-frequency power so that the electrical variable at the intervention apparatus is reduced.
摘要翻译：一种用于在磁共振检查中由于医疗介入装置的存在而减小电磁场负荷的补偿装置具有：具有射频输入和射频输出的控制装置，与射频输出，其将由控制装置输送的射频功率注入到医疗介入装置中，测量装置，其在介入装置处测量至少一个电变量;以及调节器，其与控制装置和测量装置。调节器调节控制装置以传递射频功率，使得介入装置的电变量减小。

45. 发明授权

US07728590B2 Detection unit including an RF transceiver system and a pet detector 有权
标题翻译：检测单元包括RF收发器系统和宠物检测器
公开(公告)号：US07728590B2
公开(公告)日：2010-06-01
申请号：US11902584
申请日：2007-09-24
申请人： Ludwig Eberler , Razvan Lazar , Jürgen Nistler , Wolfgang Renz , Norbert Rietsch
发明人： Ludwig Eberler , Razvan Lazar , Jürgen Nistler , Wolfgang Renz , Norbert Rietsch
IPC分类号： G01V3/00
CPC分类号： G01R33/28 , A61B5/0035 , A61B5/055 , G01R33/481 , G01T1/1603
摘要： A detection unit is disclosed for arrangement in the main magnet of an MR device, which has both an RF transceiver system and a PET detector. In at least one embodiment the RF transceiver system is divided into two parts and the two parts are arranged upstream and downstream of the PET detector in the longitudinal direction of the patient tunnel. The RF transceiver system and PET detector are applied to the same image volume. In at least one other embodiment, an MR device is equipped with the detection unit, and in at least one other embodiment, a method operates the detection unit.
摘要翻译：公开了用于布置在MR设备的主磁体中的检测单元，其具有RF收发器系统和PET检测器。在至少一个实施例中，RF收发器系统被分成两部分，并且两个部分被布置在患者隧道的纵向上的PET检测器的上游和下游。 RF收发器系统和PET检测器应用于相同的图像体积。在至少另一个实施例中，MR装置配备有检测单元，并且在至少一个其它实施例中，一种方法操作检测单元。

46. 发明申请

US20100072997A1 MAGNETIC RESONANCE SYSTEM WITH TRANSMISSION OF A DIGITIZED MAGNETIC RESONANCE SIGNAL ACROSS AN AIR GAP 有权
标题翻译：通过空气隙传输一个数字化磁共振信号的磁共振系统
公开(公告)号：US20100072997A1
公开(公告)日：2010-03-25
申请号：US12563331
申请日：2009-09-21
申请人： Hubertus Fischer , Wolfgang Renz
发明人： Hubertus Fischer , Wolfgang Renz
IPC分类号： G01R33/48 , G01R33/44
CPC分类号： G01R33/3621 , G01R33/3692
摘要： A magnetic resonance system has a patient receptacle and a base body. The patient receptacle has a subframe and a patient bed supported thereon so as to move a patient thereon through the base body. The base body has a basic field magnet system, a gradient system and an RF system that are operable to obtain an analog magnetic resonance signal from the patient. The patient receptacle has a signal conversion device composed of an A/D converter, a modulator, and a transmitter. The base body has a signal conversion device composed of a receiver and a demodulator. The A/D converter receives the magnetic resonance signal and digitizes it. The modulator modulates a carrier signal with the digitized magnetic resonance signal. The transmitter transmits the modulated carrier signal via an air gap to the receive. The receiver receives the transmitted carrier signal. The demodulator extracts the digitized magnetic resonance signal from the received carrier signal by demodulation and supplies it to an evaluation device for continuing evaluation.
摘要翻译：磁共振系统具有患者容器和基体。患者容器具有支撑在其上的子框架和患者床，以使患者在其上移动穿过基体。基体具有可操作以从患者获得模拟磁共振信号的基本场磁体系统，梯度系统和RF系统。患者插座具有由A / D转换器，调制器和发射器组成的信号转换装置。基体具有由接收器和解调器构成的信号转换装置。 A / D转换器接收磁共振信号并对其进行数字化。调制器用数字化的磁共振信号调制载波信号。发射机通过气隙将调制载波信号发送到接收机。接收机接收发送的载波信号。解调器通过解调从接收的载波信号中提取数字化的磁共振信号，并将其提供给用于继续评估的评估装置。

47. 发明授权

US07663368B2 Arrangement for radiation of a radio-frequency field 有权
标题翻译：射频场辐射安排
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。

48. 发明申请

US20090322329A1 MAGNETIC RESONANCE APPARATUS AND METHOD FOR DETERMINING A PULSE SEQUENCE TO FEED AN RF RADIATING COIL 有权
标题翻译：磁共振装置和确定脉冲序列以输入RF放射线圈的方法
公开(公告)号：US20090322329A1
公开(公告)日：2009-12-31
申请号：US12487748
申请日：2009-06-19
申请人： Dirk Diehl , Rene Gumbrecht , Juergen Nistler , Wolfgang Renz , Markus Vester , Sebastian Wolf
发明人： Dirk Diehl , Rene Gumbrecht , Juergen Nistler , Wolfgang Renz , Markus Vester , Sebastian Wolf
IPC分类号： G01R33/48 , G01R33/44
CPC分类号： G01R33/3415 , A61B5/055 , G01R33/288 , G01R33/4833 , G01R33/5612 , G01R33/5659
摘要： In a magnetic resonance apparatus having an RF radiating coil and gradient coils, and in a method for operating such a magnetic resonance apparatus, a pulse sequence, composed of multiple time steps, is specified for operating the gradient coils to time-dependently select regions of a selected slice of a selected volume of a subject. A non-linear equation system is then solved to obtain feed parameters for individual channels of the transmit coil for each time step, with specification of a desired target magnetization, and dependent on the pulse sequence specified for the gradient coils. The non-linear equation system is based on discrete values for time and space variable and, in addition to equations resulting from the Bloch equation, which are non-linear in their feed parameters, includes at least one additional equation that describes boundary conditions for the examination of the subject.
摘要翻译：在具有RF辐射线圈和梯度线圈的磁共振装置中，并且在用于操作这种磁共振装置的方法中，规定了由多个时间步长组成的脉冲序列，用于操作梯度线圈以时间依次选择所选择的受试者体积的切片。然后解决非线性方程式，以获得每个时间步长的发射线圈的各个通道的馈送参数，并且具有期望的目标磁化强度，并且取决于为梯度线圈指定的脉冲序列。非线性方程系统基于时间和空间变量的离散值，并且除了在其馈送参数中是非线性的由Bloch方程得到的方程之外，还包括至少一个附加方程，其描述了边界条件考试题目。

49. 发明申请

US20090192382A1 MAGNETIC RESONANCE SYSTEM, ANTENNA SYSTEM, METHOD FOR DESIGNING A MAGNETIC RESONANCE SYSTEM AND METHOD TO GENERATE MAGNETIC RESONANCE EXPOSURES 有权
标题翻译：磁共振系统，天线系统，用于设计磁共振系统的方法和产生磁共振曝光的方法
公开(公告)号：US20090192382A1
公开(公告)日：2009-07-30
申请号：US12358378
申请日：2009-01-23
申请人： Juergen Nistler , Wolfgang Renz , Thorsten Speckner
发明人： Juergen Nistler , Wolfgang Renz , Thorsten Speckner
IPC分类号： A61B5/055 , G01V3/00 , H01P11/00
CPC分类号： G01R33/34046 , G01R33/3415 , G01R33/3678 , G01R33/5659 , Y10T29/49016
摘要： A magnetic resonance system obtaining magnetic resonance exposures of an examination subject, has an examination tunnel, a whole-body antenna with two connection terminals. The whole-body antenna cylindrically extends around the examination tunnel along a longitudinal axis. The system has a radio-frequency supply device in order to respectively supply the whole-body antenna with radio-frequency signals for emission of a radio-frequency field in the examination tunnel. The radio-frequency supply device has a radio-frequency generator for generation of a radio-frequency signal, a signal splitter that divides a radio-frequency signal coming from the radio-frequency generator into two partial signals that are phase-shifted by 90° relative to one another. Two radio-frequency feed lines are connected with the two connection terminals of the whole-body antenna. Via these radio-frequency feed lines, the two partial signals are fed into the whole-body antenna. The whole-body antenna has an intrinsic transmission characteristic such that a radio-frequency field is emitted that is elliptically polarized in a defined manner in a plane lying perpendicular to the longitudinal axis (at least in the unloaded state of the examination tunnel).
摘要翻译：获得检查对象的磁共振曝光的磁共振系统具有检查隧道，具有两个连接端子的全身天线。全身天线沿着纵向轴线围绕检查隧道圆周延伸。该系统具有射频供给装置，以分别向全身天线提供用于在检查隧道中发射射频场的射频信号。射频供给装置具有用于产生射频信号的射频发生器，将来自射频发生器的射频信号分割为相移90°的两个部分信号的信号分离器相对于彼此。两根射频馈线与全身天线的两个连接端子连接。通过这些射频馈线，两个部分信号被馈送到全身天线。全身天线具有固有的传输特性，使得在垂直于纵向轴线的平面中（至少在检查隧道的无负载状态）中以限定的方式发射出被椭圆偏振的射频场。

50. 发明申请

US20080053609A1 PRESS AND METHOD FOR LAMINATING BOARD-SHAPED WORK PIECES VIA PRESSURE AND HEAT 审中-公开
标题翻译：用于通过压力和热量层压板形工作的压力和方法
公开(公告)号：US20080053609A1
公开(公告)日：2008-03-06
申请号：US11838344
申请日：2007-08-14
申请人： Wolfgang Renz
发明人： Wolfgang Renz
IPC分类号： B29C65/02 , B29C43/52 , B30B15/34 , B30B7/00 , B32B37/06 , B32B37/10
CPC分类号： B30B1/003 , B30B1/323 , B30B5/02 , B32B37/0046 , B32B37/10 , B32B37/1009 , B32B2309/68
摘要： A press and a method to laminate board-shaped work pieces via pressure and heat is provided. The press includes an upper press table 1 having an upper press plate 7 and a lower press table 2 having a lower press plate 10, and the upper and/or the lower press plate can be heated. The press further includes a one or two-part encircling gasket 16, 17, arranged at the upper press table 1 or the upper press plate 7 and/or the lower press table 2 to form a vacuum pressure chamber when the press is closed, an actuator 4 to open and close the press, as well as a vacuum source connection to evacuate the vacuum chamber formed by the seal 16, 17. According to the invention the lower press plate 10 can be raised in reference to the lower press table 2 and is arranged such that a work piece 6 located in the press initially does not contact the heated press plate 7, 10 when the vacuum pressure chamber is closed. The lamination method according to the invention is therefore embodied in two steps: first the vacuum pressure chamber is evacuated and only then is the work piece hot pressed.
摘要翻译：提供了压力机和通过压力和热量层压板状工件的方法。压机包括具有上压板7的上压板1和具有下压板10的下压台2，并且可以加热上压板和/或下压板。压力机还包括一个或两部分环绕的垫圈16,17，布置在上压板1或上压板7和/或下压台2处，以在压机关闭时形成真空压力室致动器4以打开和关闭压机，以及真空源连接以抽真空由密封件16,17形成的真空室。根据本发明，下压板10可以相对于下压台2升高，并且布置成使得当真空压力室为真空压力室时，位于压力机中的工件6不接触加热的压板7,10 关闭。因此，根据本发明的层压方法分为两个步骤：首先真空压力室被抽真空，然后只是工件被热压。

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