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    Integrated multi-function showerhead
    1.
    发明申请
    Integrated multi-function showerhead 有权
    集成多功能花洒

    公开(公告)号：US20070246578A1

    公开(公告)日：2007-10-25

    申请号：US11788086

    申请日：2007-04-19

    申请人： Jamy Bulan ,  James Dempsey ,  Timothy O'Brien ,  Harshil Parikh

    发明人： Jamy Bulan ,  James Dempsey ,  Timothy O'Brien ,  Harshil Parikh

    IPC分类号： B05B1/14 ,  A62C31/02 ,  A62C2/08

    CPC分类号： B05B1/18 ,  B05B1/16

    摘要： A showerhead has at least a first set of nozzles and a second set of nozzles for discharging water. The showerhead discharges water according to one of multiple water delivery functions, where a first water delivery function corresponds to water being discharged through only the first set of nozzles, a second water delivery function corresponds to water being discharged through only the second set of nozzles and a third water delivery function corresponds to water being discharged through the first and second sets of nozzles simultaneously. The spacing between the first set of nozzles and the second set of nozzles is carefully selected so that the third water delivery function corresponds to the integrated nozzles of the first and second sets of nozzles. As a result, the third water delivery function provides a coherent and balanced water flow resulting in a more pleasant feel.

    摘要翻译： 喷头具有至少第一组喷嘴和用于排放水的第二组喷嘴。 淋浴器根据多个输水功能之一排出水，其中第一输水功能对应于仅通过第一组喷嘴排出的水，第二输水功能对应于仅通过第二组喷嘴排出的水，以及 第三输水功能对应于同时通过第一组和第二组喷嘴排出的水。 仔细选择第一组喷嘴和第二组喷嘴之间的间隔，使得第三输水功能对应于第一组和第二组喷嘴的集成喷嘴。 结果，第三次输水功能提供了一致和平衡的水流，从而产生更舒适的感觉。

    Active resistive shimming fro MRI devices
    2.
    发明授权
    Active resistive shimming fro MRI devices 有权
    磁共振成像装置的主动阻力垫片

    公开(公告)号：US08981779B2

    公开(公告)日：2015-03-17

    申请号：US13324850

    申请日：2011-12-13

    申请人： Shmaryu Shvartsman ,  James Dempsey ,  Gordon DeMeester

    发明人： Shmaryu Shvartsman ,  James Dempsey ,  Gordon DeMeester

    IPC分类号： G01V3/00 ,  G01R33/3875 ,  G01R33/38 ,  G01R33/48

    CPC分类号： G01R33/3875 ,  G01R33/3642 ,  G01R33/3806 ,  G01R33/385 ,  G01R33/4808 ,  G01R33/481 ,  G01R33/4812 ,  G01R33/4814

    摘要： Active resistive shim coil assemblies may be used in magnetic resonance imaging (MRI) systems to reduce in-homogeneity of the magnetic field in the imaging volume. Disclosed embodiments may be used with continuous systems, gapped cylindrical systems, or vertically gapped systems. Disclosed embodiments may also be used with an open MRI system and can be used with an instrument placed in the gap of the MRI system. An exemplary embodiment of the active resistive shim coil assembly of the present disclosure includes active resistive shim coils each operable to be energized by separate currents through a plurality of power channels. In some embodiments, the disclosed active resistive shim coil assemblies allow for various degrees of freedom to shim out field in-homogeneity.

    摘要翻译： 有源电阻衬片线圈组件可用于磁共振成像（MRI）系统，以减小成像体积中磁场的均匀性。 公开的实施例可以与连续系统，间隙圆柱形系统或垂直间隙系统一起使用。 公开的实施例也可以与开放式MRI系统一起使用，并且可以与放置在MRI系统的间隙中的仪器一起使用。 本公开的有源电阻衬片线圈组件的示例性实施例包括有源电阻衬垫线圈，其可操作以由通过多个功率通道的分离电流激励。 在一些实施例中，所公开的主动阻抗衬片线圈组件允许不同程度的自由度来均匀地摆放场。

    Radiation therapy system using interior-point methods and convex models for intensity modulated fluence map optimization
    3.
    发明申请
    Radiation therapy system using interior-point methods and convex models for intensity modulated fluence map optimization 审中-公开
    使用内点法和凸模型进行强度调制注量地图优化的放射治疗系统

    公开(公告)号：US20050207531A1

    公开(公告)日：2005-09-22

    申请号：US11039331

    申请日：2005-01-20

    申请人： James Dempsey ,  Ravindra Ahuja ,  Arvind Kumar ,  Jonathan Li ,  H. Romeijn

    发明人： James Dempsey ,  Ravindra Ahuja ,  Arvind Kumar ,  Jonathan Li ,  H. Romeijn

    IPC分类号： A61N5/10

    CPC分类号： A61N5/1031 ,  A61N5/1042

    摘要： A method of determining a treatment plan for intensity modulated radiation treatment (IMRT) divides a three-dimensional volume of a patient into a grid of dose voxels. At least a portion of the dose voxels are designated to belong to at least one target or to at least one critical structure. An ionizing radiation dose as delivered by a plurality of beamlets each having a beamlet intensity is modeled. A non-linear convex voxel-based penalty function model is provided for optimizing a fluence map. The fluence map defines the beamlet intensities for each of the plurality of beamlets. The model is then solved based on defined clinical criteria for the target and the critical structure using an interior point algorithm with dense column handling to obtain a globally optimal fluence map.

    摘要翻译： 确定强度调制辐射治疗（IMRT）的治疗计划的方法将患者的三维体积分成剂量体素的网格。 剂量体素的至少一部分被指定为属于至少一个靶或至少一个关键结构。 由多个具有子束强度的子束传送的电离辐射剂量被建模。 提供了一种非线性凸基于体素的惩罚函数模型，用于优化注量图。 注量图定义了多个子束中的每一个的子束强度。 然后使用具有密集列处理的内点算法，基于目标和临界结构的定义临床标准来解决该模型，以获得全局最优注量图。

    ACTIVE RESISTIVE SHIMMING FOR MRI DEVICES
    4.
    发明申请
    ACTIVE RESISTIVE SHIMMING FOR MRI DEVICES 有权
    用于MRI设备的主动电阻成像

    公开(公告)号：US20130147476A1

    公开(公告)日：2013-06-13

    申请号：US13324850

    申请日：2011-12-13

    申请人： Shmaryu Shvartsman ,  James Dempsey ,  Gordon DeMeester

    发明人： Shmaryu Shvartsman ,  James Dempsey ,  Gordon DeMeester

    IPC分类号： G01R33/58 ,  G01R33/341

    CPC分类号： G01R33/3875 ,  G01R33/3642 ,  G01R33/3806 ,  G01R33/385 ,  G01R33/4808 ,  G01R33/481 ,  G01R33/4812 ,  G01R33/4814

    摘要： Active resistive shim coil assemblies may be used in magnetic resonance imaging (MRI) systems to reduce in-homogeneity of the magnetic field in the imaging volume. Disclosed embodiments may be used with continuous systems, gapped cylindrical systems, or vertically gapped systems. Disclosed embodiments may also be used with an open MRI system and can be used with an instrument placed in the gap of the MRI system. An exemplary embodiment of the active resistive shim coil assembly of the present disclosure includes active resistive shim coils each operable to be energized by separate currents through a plurality of power channels. In some embodiments, the disclosed active resistive shim coil assemblies allow for various degrees of freedom to shim out field in-homogeneity.

    摘要翻译： 有源电阻衬片线圈组件可用于磁共振成像（MRI）系统，以减小成像体积中磁场的均匀性。 公开的实施例可以与连续系统，间隙圆柱形系统或垂直间隙系统一起使用。 公开的实施例也可以与开放式MRI系统一起使用，并且可以与放置在MRI系统的间隙中的仪器一起使用。 本公开的有源电阻衬片线圈组件的示例性实施例包括有源电阻衬垫线圈，其可操作以由通过多个功率通道的分离电流激励。 在一些实施例中，所公开的主动阻抗衬片线圈组件允许不同程度的自由度来均匀地摆放场。