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    • 25. 发明授权
    • Stacked connector with plastic part assembled thereto
    • 堆叠的连接器与塑料部件组装在一起
    • US06682365B1
    • 2004-01-27
    • US10289028
    • 2002-11-05
    • Kevin E. WalkerJames H. HylandTod M. HarlanRobert W. Brown
    • Kevin E. WalkerJames H. HylandTod M. HarlanRobert W. Brown
    • H01R300
    • H01R24/64H01R13/717H01R13/7175
    • An electrical connector (1) has a metal shield (3), a main housing (5), a pair of LEDs (6) received in the main housing, a subassembly (7) assembled to the main housing, a stacked Universal Serial Bus (USB) 4, and a molded assembly (2) assembled to the subassembly. Each LED (61, 62) has a plurality of leads (611, 621), a free end (612) of the middle lead of the LED is bent perpendicularly and extending horizontally thereafter below the other leads. The molded assembly comprising a plastic part (24), and a first and second connections (22, 23) insert molded in the plastic part. The plastic part has a pair of supporting posts (243) and a pair of positioning posts (245) extending from corresponding supporting posts. Each supporting post defines a channel (244) in a middle portion thereof.
    • 电连接器(1)具有金属屏蔽(3),主壳体(5),容纳在主壳体中的一对LED(6),组装到主壳体上的子组件(7),堆叠的通用串行总线 (USB)4,以及组装到组件的模制组件(2)。 每个LED(61,62)具有多个引线(611,621),LED的中间引线的自由端(612)垂直地弯曲,然后在其它引线之下水平延伸。 所述模制组件包括塑料部件(24)和模制在塑料部件中的第一和第二连接件(22,23)。 塑料部件具有一对支撑柱(243)和一对从对应的支柱延伸的定位柱(245)。 每个支撑柱在其中间部分中限定通道(244)。
    • 27. 发明授权
    • Active-passive electromagnetic shielding to reduce MRI acoustic noise
    • 主动被动电磁屏蔽减少MRI声学噪声
    • US07375526B2
    • 2008-05-20
    • US11551413
    • 2006-10-20
    • William A. EdelsteinTesfaye K. KidaneVictor TaracillaTanvir N. BaigTimothy P. EaganRobert W. Brown
    • William A. EdelsteinTesfaye K. KidaneVictor TaracillaTanvir N. BaigTimothy P. EaganRobert W. Brown
    • G01V3/00
    • G01R33/3854G01R33/4215
    • The present invention provides an apparatus for reducing acoustic noise in a magnetic resonance imaging device including passive shielding located outside the actively shielded gradient winding elements in order to reduce the magnitude of fields that spread outside the gradient coil assembly in unwanted directions and interact with the magnet cryostat or other metallic magnet parts, inducing eddy currents that cause consequent acoustic noise. The passive shielding elements are conducting layers located on the outer radius of the cylindrical gradient coil assembly in a cylindrical magnet system, conducting layers located at the ends of the gradient coil assembly in a cylindrical magnet system, and conducting layers located inside the actively shielded gradient winding inner elements in a cylindrical magnet system. The passive shielding could also be located on separate structures that are vibrationally isolated from the magnet cryostat. The actively shielded gradient winding can also be extended to portions at the ends of the actively shielded gradient winding and further to portions inside the inner radius of the inner portion of the actively shielded gradient winding. The actively shielded gradient windings and passive shielding should be designed concurrently in order to substantially optimize the gradient linearity and reduce the eddy currents generated in metallic parts of the magnetic resonance imaging system.
    • 本发明提供了一种用于降低磁共振成像装置中的声学噪声的装置,其包括位于主动屏蔽的梯度绕组元件外部的无源屏蔽,以便减少在不需要的方向上扩展到梯度线圈组件外部的场的大小并与磁体相互作用 低温恒温器或其他金属磁体部件,引起导致声音噪声的涡流。 无源屏蔽元件是位于圆柱形磁体系统中的圆柱形梯度线圈组件的外半径上的导电层,位于梯形线圈组件的端部的导电层位于圆柱形磁体系统中,导电层位于主动屏蔽梯度内 在圆柱形磁体系中缠绕内部元件。 被动屏蔽也可以位于与磁体低温恒温器振动隔离的分离结构上。 主动屏蔽的梯度绕组还可以延伸到主动屏蔽的梯度绕组的端部的部分,并且还可以延伸到主动屏蔽的梯度绕组的内部的内半径内的部分。 主动屏蔽梯度绕组和无源屏蔽应同时设计,以便基本上优化梯度线性并减少在磁共振成像系统的金属部分中产生的涡流。
    • 28. 发明授权
    • Birdcage coils for simultaneous acquisition of spatial harmonics
    • 鸟笼线圈同时采集空间谐波
    • US06791321B2
    • 2004-09-14
    • US10173933
    • 2002-06-18
    • Jacob D. Willig-OnwuachiRobert W. BrownShmaryu M. Shvartsman
    • Jacob D. Willig-OnwuachiRobert W. BrownShmaryu M. Shvartsman
    • G01V300
    • G01R33/561G01R33/34046G01R33/5611
    • In a magnetic resonance imaging apparatus, a main magnet assembly (12) produces a uniform magnetic field through an imaging region (14). An imaging region is defined within a subject by selecting gradient magnetic fields spatially encode the main magnetic field. A whole body birdcage radio frequency coil (26) excites magnetic resonance in dipoles of the subject. The resonance signals are received by the whole body coil (26) and by a second, local birdcage radio frequency coil (16). The first radio frequency coil (26) produces and is sensitive to a uniform radio frequency field in the imaging region (14) while the second radio frequency coil (28) is sensitive to a field that varies sinusoidally in space. From one radio frequency excitation, the two birdcage coils (26, 16) receive different sets of data with which to fill k-space, accelerating data collection.
    • 在磁共振成像装置中,主磁体组件(12)通过成像区域(14)产生均匀的磁场。 通过选择对主磁场进行空间编码的梯度磁场,在对象内定义成像区域。 全身鸟笼射频线圈(26)激发受试者的偶极子中的磁共振。 谐振信号由全体线圈(26)和第二局部鸟笼射频线圈(16)接收。 第一射频线圈(26)对成像区域(14)中的均匀射频场产生并且敏感,而第二射频线圈(28)对于空间正弦变化的场敏感。 从一个射频激励,两个鸟笼线圈(26,16)接收不同的数据集合,以填充k空间,加速数据收集。
    • 29. 发明授权
    • Modular storage system for cylindrical objects
    • 圆柱形物体的模块化存储系统
    • US06435355B1
    • 2002-08-20
    • US09158235
    • 1998-09-22
    • Robert W. Brown
    • Robert W. Brown
    • A47F718
    • A47B73/006A47F7/0035A47F7/17
    • A modular storage system for cylindrical objects, such as rolled carpet mats, having an open frame in the form of a right parallelepiped comprised of a horizontal rectangular base, a horizontal rectangular top, and vertical standards connecting the corners of the base and top. Within the frame there are disposed a plurality of pairs of left and right face-to-face vertically extending abutting mirror image formed or shaped shells. Each mirror image shell is formed to define a plurality of alternating inwardly facing one-half storage cells separated by oppositely facing one-half storage cells of substantially identical shape and cross-section. Each abutting pair of face-to-face shells forms a composite unit and defines a vertical row of spaced apart horizontal storage cells. Each adjacent abutting composite unit defines a vertical row of similar horizontal storage cells in staggered relation to the first row. The composite units substantially fill the space within the open frame and are supported by the frame top and base. Although the storage cells are preferably of hexagonal cross-section they may alternatively be of square cross section arrayed either horizontally or diagonally.
    • 用于圆柱形物体的模块化存储系统,例如轧制地毯垫,具有由水平矩形基座,水平矩形顶部和连接基座和顶部的角部的垂直标准构成的右平行六面体形式的开放框架。 在框架内设置有多对左右对立的垂直延伸的邻接镜像形成或成形的外壳。 每个镜像壳形成为限定由相对的两个具有基本相同形状和横截面的两个存储单元隔开的向内交替的面向外的半存储单元。 每个邻接的一对面对壳形成复合单元并且限定垂直排的间隔开的水平存储单元。 每个相邻的邻接复合单元限定与第一行交错关系的类似水平存储单元的垂直行。 复合单元基本上填充开放框架内的空间并由框架顶部和底部支撑。 尽管存储单元优选地具有六边形横截面,但是它们也可以是水平方向或对角线排列的方形横截面。