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    MR invasive device and method for active MR guidance of invasive devices with target navigation
    1.
    发明授权
    MR invasive device and method for active MR guidance of invasive devices with target navigation 有权
    用于目标导航的侵入性装置的主动MR引导的MR侵入性装置和方法

    公开(公告)号：US07835780B1

    公开(公告)日：2010-11-16

    申请号：US10240219

    申请日：2001-03-30

    申请人： Jeffrey L. Duerk ,  Qiang Zhang ,  Michael Wendt ,  Yiu-Cho Chung ,  Jonathan S. Lewin ,  Elmar M. Merkle

    发明人： Jeffrey L. Duerk ,  Qiang Zhang ,  Michael Wendt ,  Yiu-Cho Chung ,  Jonathan S. Lewin ,  Elmar M. Merkle

    IPC分类号： A61B5/05

    CPC分类号： G01R33/287 ,  G01R33/34084

    摘要： An invasive device having an inductive coupling element. One embodiment of the invasive device includes a plurality of receive coils inductively coupled to a communicating coil. The receive coils are selectively tuned and detuned to receive MR signals for providing coordinate information used for device tracking. A second embodiment of the invasive device includes a receive coil having a plurality of winding elements separated from each other by different distances. A method of rapidly acquiring both the invasive device orientation and position information to dynamically adapt MR scan planes to continuously follow the invasive device relative to a target is provided. The target-navigation technique automatically defines the MR scan plane and a time domain multiplexing technique is applied for MR imaging and device tracking. Using these techniques, the acquired MR images shows both the invasive device and the target tissue.

    摘要翻译： 一种具有感应耦合元件的侵入性装置。 侵入性装置的一个实施例包括感应耦合到通信线圈的多个接收线圈。 接收线圈被选择性地调谐和失谐以接收用于提供用于设备跟踪的坐标信息的MR信号。 侵入性装置的第二实施例包括具有彼此以不同距离分开的多个绕组元件的接收线圈。 提供了一种快速获取入侵设备取向和位置信息以便动态地适应MR扫描平面以相对于目标连续跟随侵入性设备的方法。 目标导航技术自动定义MR扫描平面，并应用时域复用技术进行MR成像和设备跟踪。 使用这些技术，获得的MR图像显示侵入性装置和目标组织。

    Method for correction of MRI motion artifacts and main field fluctuation
    2.
    发明授权
    Method for correction of MRI motion artifacts and main field fluctuation 有权
    纠正MRI运动伪像和主场波动的方法

    公开(公告)号：US06404196B1

    公开(公告)日：2002-06-11

    申请号：US09762026

    申请日：2001-04-04

    申请人： Jeffrey L. Duerk ,  Michael Wendt ,  Ajit Shankaranaravanan ,  Yiu-Cho Chung ,  Jonathan S. Lewin ,  Elmar Merkle

    发明人： Jeffrey L. Duerk ,  Michael Wendt ,  Ajit Shankaranaravanan ,  Yiu-Cho Chung ,  Jonathan S. Lewin ,  Elmar Merkle

    IPC分类号： G01V300

    CPC分类号： G01R33/56509 ,  A61B5/055 ,  A61B5/7257 ,  G01R33/482 ,  G01R33/56563 ,  G01R33/5676

    摘要： A method for correcting MRI motion artifacts and main field fluctuations. A series of data prints are acquired at read points along a radial axis to form a view (210). Subsequent views define a NMR data set. A processor stores the NMR data set and reconstructs an image array from a stored NMR data set by; a) reconstructing the NMR data set along a radial axis; b) producing a correction data array including correction values where each of the correction values is calculated as a function of the corresponding stored NMR datum and the stored NMR datum for the intersection of the first and subsequent projection (200) axes; c) applying the data in the correction array to the NMR data set to produce a final NMrR data set.

    摘要翻译： 用于校正MRI运动伪像和主场波动的方法。 在沿着径向轴的读取点处获取一系列数据打印以形成视图（210）。 随后的视图定义了一个NMR数据集。 处理器存储NMR数据集，并从存储的NMR数据集中重建图像阵列; a）沿着径向轴重建NMR数据集; b）产生校正数据阵列，该校正数据阵列包括校正值，其中每个校正值根据对应的存储的NMR数据和存储的第一和后一个投影（200）轴的交点的NMR数据计算; c）将校正阵列中的数据应用于NMR数据集以产生最终的NMrR数据集。

    Magnetic resonance imaging (MRI) optimized chemical-shift excitation
    4.
    发明授权
    Magnetic resonance imaging (MRI) optimized chemical-shift excitation 有权
    磁共振成像（MRI）优化化学位移激发

    公开(公告)号：US06404198B1

    公开(公告)日：2002-06-11

    申请号：US09509325

    申请日：2000-11-06

    申请人： Jeffrey L. Duerk ,  Michael Wendt ,  Jonathan S. Lewin ,  Dee H. Wu

    发明人： Jeffrey L. Duerk ,  Michael Wendt ,  Jonathan S. Lewin ,  Dee H. Wu

    IPC分类号： G01V300

    CPC分类号： G01R33/446 ,  G01R33/4828 ,  G01R33/4835

    摘要： A magnetic resonance imaging (MRI) system (100) performs optimized chemical-shift excitation. A computer system (110) performs a constrained numerical optimization to determine radio frequency (RF) pulse amplitudes, phase angles, and interpulse intervals for a binomial-like RF pulse sequence that will excite magnetization (41) of a selective one of two chemical species, such as water and fat for example, of a subject (102) in relatively less time and that may therefore be used at lower magnetic fields. A static magnet (132) produces a magnetic field along a predetermined axis relative to the subject Pulse sequence apparatus (134, 152, 154, 156, 158) creates magnetic field gradients with the magnetic field, applies RF pulsed magnetic fields, and receives resulting RF magnetic resonance (MR) signals. Pulse sequence control apparatus (142) controls the pulse sequence apparatus to apply the binomial-like RF pulse sequence to the subject. The computer system reconstructs an image from received RF MR signals resulting from application of the binomial-like RF pulse sequence.

    摘要翻译： 磁共振成像（MRI）系统（100）执行优化的化学位移激励。 计算机系统（110）执行受限数值优化以确定将激发两种化学物质中的选择性物质的磁化（41）的二项式样RF脉冲序列的射频（RF）脉冲幅度，相位角和脉冲间隔 例如受试者（102）的水和脂肪，在相对较少的时间内，因此可以在较低的磁场下使用。 静磁体（132）相对于被测脉冲序列装置（134,152,154,156,158）产生沿预定轴的磁场，产生具有磁场的磁场梯度，施加RF脉冲磁场，并且接收所得到的 射频磁共振（MR）信号。 脉冲序列控制装置（142）控制脉冲序列装置将二叉类RF脉冲序列应用于对象。 计算机系统从应用二项式样的RF脉冲序列得到的接收的RF MR信号重构图像。

    CURRENT DRIVER CIRCUIT
    8.
    发明申请
    CURRENT DRIVER CIRCUIT 有权
    电流驱动电路

    公开(公告)号：US20100039144A1

    公开(公告)日：2010-02-18

    申请号：US12540222

    申请日：2009-08-12

    申请人： Sri N. Easwaran ,  Michael Wendt

    发明人： Sri N. Easwaran ,  Michael Wendt

    IPC分类号： G05F1/10

    CPC分类号： G05F1/56 ,  B60R21/017

    摘要： An integrated regulated current drive circuit for driving a squib of an inflatable airbag has a current sense resistor connected in series with a load, and a reference resistor connected in series with a reference current source. Both resistors are matched to define a precise ratio of resistance values which determines the amount of current fed to the squib. Both resistors are implemented by combining a number of identical on-chip resistor elements.

    摘要翻译： 用于驱动可充气安全气囊的爆管的集成调节电流驱动电路具有与负载串联的电流检测电阻器和与参考电流源串联的参考电阻器。 两个电阻匹配，以确定电阻值的精确比例，该电阻值决定了馈送到爆管的电流量。 两个电阻都通过组合多个相同的片上电阻元件来实现。

    HIGH SIDE/LOW SIDE DRIVER DEVICE FOR SWITCHING ELECTRICAL LOADS
    9.
    发明申请
    HIGH SIDE/LOW SIDE DRIVER DEVICE FOR SWITCHING ELECTRICAL LOADS 有权
    用于切换电气负载的高侧/低侧驱动装置

    公开(公告)号：US20070290738A1

    公开(公告)日：2007-12-20

    申请号：US11752296

    申请日：2007-05-22

    申请人： Michael Wendt ,  Lenz Thoma ,  Bernhard Wicht

    发明人： Michael Wendt ,  Lenz Thoma ,  Bernhard Wicht

    IPC分类号： H03K17/687

    CPC分类号： H03K17/0822 ,  H03K17/6872

    摘要： An integrated circuit device for switching electrical loads that have an inductive component comprises at least one switching channel that includes a power stage with a power MOS transistor and a driver circuit for driving the gate of the power MOS transistor, the switching stage being configurable for use in either of a High Side configuration and a Low Side configuration.

    摘要翻译： 用于切换具有电感分量的电负载的集成电路装置包括至少一个开关通道，其包括具有功率MOS晶体管的功率级和用于驱动功率MOS晶体管的栅极的驱动电路，所述开关级可配置为使用 在高端配置和低端配置中。

    Automatic resource assignment in stacked module devices
    10.
    发明授权
    Automatic resource assignment in stacked module devices 有权
    堆叠模块设备中的自动资源分配

    公开(公告)号：US07286384B2

    公开(公告)日：2007-10-23

    申请号：US11158509

    申请日：2005-06-22

    申请人： Michael Wendt ,  Frank Schneider ,  Frank Edelhaeuser ,  Helmut Prengel

    发明人： Michael Wendt ,  Frank Schneider ,  Frank Edelhaeuser ,  Helmut Prengel

    IPC分类号： G11C5/06

    CPC分类号： G06F12/0676

    摘要： A stacked module device and corresponding module and method are provided where at least some modules have input ports connected to receive first resource related signals and output ports connected to provide second resource related signals. The first and second signals are different, and each module comprises a resource signal transformation unit for generating the second signal from the first signals. The resource signal transformation units of each module are of the same construction. Resources may be addresses. Further, a software configurable address assignment is provided.

    摘要翻译： 提供堆叠的模块设备和相应的模块和方法，其中至少一些模块具有连接的输入端口以接收连接的第一资源相关信号和输出端口，以提供第二资源相关信号。 第一和第二信号是不同的，并且每个模块包括用于从第一信号产生第二信号的资源信号变换单元。 每个模块的资源信号变换单元具有相同的结构。 资源可能是地址。 此外，提供了软件可配置的地址分配。