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    Air cross grids for mammography and methods for their manufacture and use
    3.
    发明授权
    Air cross grids for mammography and methods for their manufacture and use 失效
    用于乳房X线摄影的空气十字网格及其制造和使用方法

    公开(公告)号：US5606589A

    公开(公告)日：1997-02-25

    申请号：US438172

    申请日：1995-05-09

    申请人： Anthony J. Pellegrino ,  Daniel N. Lyke ,  David P. Lieb ,  Joseph A. Buturlia ,  Michael P. Appleby

    发明人： Anthony J. Pellegrino ,  Daniel N. Lyke ,  David P. Lieb ,  Joseph A. Buturlia ,  Michael P. Appleby

    IPC分类号： G21K1/02 ,  G21K1/00

    CPC分类号： A61B6/502 ,  G21K1/025

    摘要： Air cross grids, for absorbing scattered secondary radiation and improving X-ray imaging in general radiography and in mammography, are provided with a large plurality of open air passages extending through each grid panel. These passages are defined by two large pluralities of substantially parallel partition walls, respectively extending transverse to each other. Each grid panel is made by laminating a plurality of thin metal foil sheets photo-etched to create through openings defined by partition segments. The etched sheets are aligned and bonded to form the laminated grid panel, which is moved edgewise during the X-ray exposure to pass primary radiation through the air passages while absorbing scattered secondary radiation arriving along slanted paths.

    摘要翻译： 用于吸收散射二次辐射的空气十字网格和在一般放射照相术和乳房照相术中改进X射线成像提供有延伸穿过每个格栅板的大量多个露天通道。 这些通道由分别相互横向延伸的两个大的多个大致平行的分隔壁限定。 每个网格面板通过层叠多个薄的金属箔薄片来制造，所述薄金属薄片被光蚀刻以形成通过由分隔段限定的开口。 蚀刻的片材被对准并结合以形成层叠网格板，其在X射线曝光期间沿边移动以使初级辐射通过空气通道，同时吸收沿倾斜路径到达的散射的次级辐射。

    Air cross grids for X-ray imaging
    4.
    发明授权
    Air cross grids for X-ray imaging 失效
    用于X射线成像的空气十字格栅

    公开(公告)号：US6075840A

    公开(公告)日：2000-06-13

    申请号：US21655

    申请日：1998-02-10

    申请人： Anthony J. Pellegrino ,  Daniel N Lyke ,  David P. Lieb ,  Joseph A. Buturlia ,  Michael P. Appleby

    发明人： Anthony J. Pellegrino ,  Daniel N Lyke ,  David P. Lieb ,  Joseph A. Buturlia ,  Michael P. Appleby

    IPC分类号： G21K1/02 ,  G21K1/00

    CPC分类号： A61B6/502 ,  G21K1/025

    摘要： Air cross grids, for absorbing scattered secondary radiation and improving radiation imaging in general radiography and in mammography, are provided with a large plurality of open air passages extending through each grid panel. These passages are defined by two large pluralities of substantially parallel partition walls, respectively extending transverse to each other. Each grid panel is made by laminating a plurality of thin metal foil sheets photo-etched to create through openings defined by partition segments. The etched sheets are aligned and bonded to form the laminated grid panel, which is moved edgewise during the radiation exposure to pass primary radiation through the air passages while absorbing scattered secondary radiation arriving along slanted paths.

    摘要翻译： 用于吸收散射二次辐射和改善放射成像在一般放射照相术和乳房X线照相术中的空气十字网格设置有延伸穿过每个格栅板的大量多个露天通道。 这些通道由分别相互横向延伸的两个大的多个大致平行的分隔壁限定。 每个网格面板通过层叠多个薄的金属箔薄片来制造，所述薄金属薄片被光蚀刻以形成通过由分隔段限定的开口。 蚀刻的片材被对准并结合以形成层叠网格板，其在辐射暴露期间沿边移动，以使主辐射通过空气通道，同时吸收沿倾斜路径到达的散射的次级辐射。

    Air cross grids for mammography and methods for their manufacture and use
    5.
    发明授权
    Air cross grids for mammography and methods for their manufacture and use 失效
    用于乳房X线摄影的空气十字网格及其制造和使用方法

    公开(公告)号：US5729585A

    公开(公告)日：1998-03-17

    申请号：US761538

    申请日：1996-12-06

    申请人： Anthony J. Pellegrino ,  Daniel N. Lyke ,  David P. Lieb ,  Joseph A. Buturlia ,  Michael P. Appleby

    发明人： Anthony J. Pellegrino ,  Daniel N. Lyke ,  David P. Lieb ,  Joseph A. Buturlia ,  Michael P. Appleby

    IPC分类号： G21K1/02 ,  G21K1/00

    CPC分类号： A61B6/502 ,  G21K1/025

    摘要： Air cross grids, for absorbing scattered secondary radiation and improving X-ray imaging in general radiography and in mammography, are provided with a large plurality of open air passages extending through each grid panel. These passages are defined by two large pluralities of substantially parallel partition walls, respectively extending transverse to each other. Each grid panel is made by laminating a plurality of thin metal foil sheets photo-etched to create through openings defined by partition segments. The etched sheets are aligned and bonded to form the laminated grid panel, which is moved edgewise during the X-ray exposure to pass primary radiation through the air passages while absorbing scattered secondary radiation arriving along slanted paths.

    摘要翻译： 用于吸收散射二次辐射的空气十字网格和在一般放射照相术和乳房照相术中改进X射线成像提供有延伸穿过每个格栅板的大量多个露天通道。 这些通道由分别相互横向延伸的两个大的多个大致平行的分隔壁限定。 每个网格面板通过层叠多个薄的金属箔薄片来制造，所述薄金属薄片被光蚀刻以形成通过由分隔段限定的开口。 蚀刻的片材被对准并结合以形成层叠网格板，其在X射线曝光期间沿边移动以使初级辐射通过空气通道，同时吸收沿倾斜路径到达的散射的次级辐射。

    Focused radiation collimator
    6.
    发明授权
    Focused radiation collimator 有权
    聚焦辐射准直仪

    公开(公告)号：US06185278B2

    公开(公告)日：2001-02-06

    申请号：US09339365

    申请日：1999-06-24

    申请人： Michael P. Appleby ,  Joseph A. Buturlia ,  Iain Fraser ,  Robert F. Lynch

    发明人： Michael P. Appleby ,  Joseph A. Buturlia ,  Iain Fraser ,  Robert F. Lynch

    IPC分类号： G21K104

    CPC分类号： G21K1/025

    摘要： A focused radiation collimator for collimating radiation emitted from a radiation point source located at a substantially known focal distance from the collimator is disclosed. In one embodiment of the disclosed collimator, the collimator is formed by at least two collimator layer groups, aligned, stacked and bonded together immediately adjacent to one another. Each of the collimator layer groups have a plurality of layer group passages arranged there through in a predetermined pattern which is unique to the layer group but which, with the passages of the other collimator layer group in the aligned stack, additively form a plurality of collimator through channels which are substantially aimed at the radiation point source. Each collimating layer group is formed by at least two substantially identical radiation absorbing layers, aligned, stacked and bonded together immediately adjacent to one another. Each of the substantially identical radiation absorbing layers have a plurality of openings arranged there through in substantially the same predetermined pattern which, with the plurality of openings of the other radiation absorbing layer in the aligned stack, additively form the layer group passages. High aspect ratio collimators having very small diameter through channels can be efficiently made in accordance with the teachings of the disclosure.

    摘要翻译： 公开了一种用于准直来自位于与准直器基本上已知的焦距的辐射点源发射的辐射的聚焦辐射准直器。 在所公开的准直仪的一个实施例中，准直器由至少两个准直器层组形成，它们彼此对准，堆叠并结合在一起。 每个准直器层组具有多个层组通道，其中以预定图案布置在层上，该预定图案对于层组是唯一的，但是在对准的叠层中的另一个准直器层组的通道相加地形成多个准直器 通过基本上瞄准辐射点源的通道。 每个准直层组由至少两个基本上相同的辐射吸收层形成，其彼此对齐，堆叠并结合在一起。 基本上相同的辐射吸收层中的每一个具有多个通过基本上相同的预定图案布置在其上的开口，其中对准的叠层中的另一个辐射吸收层的多个开口相加地形成层组通道。 根据本公开的教导，可以有效地制造具有通过通道的非常小直径的高纵横比准直器。