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    X-ray bone densitometry system having forearm positioning assembly
    1.
    发明授权
    X-ray bone densitometry system having forearm positioning assembly 失效
    X射线骨密度测定系统具有前臂定位组件

    公开(公告)号：US5657369A

    公开(公告)日：1997-08-12

    申请号：US428044

    申请日：1995-04-25

    申请人： Jay A. Stein ,  Steven Teta ,  Richard E. Cabral ,  Tracy L. Ramsdell ,  Tina LeFebvre ,  Russell J. Gershman

    发明人： Jay A. Stein ,  Steven Teta ,  Richard E. Cabral ,  Tracy L. Ramsdell ,  Tina LeFebvre ,  Russell J. Gershman

    IPC分类号： A61B6/00 ,  A61B6/04 ,  A61B6/06 ,  A61B6/08 ,  G21K1/10 ,  G21K5/10 ,  H05G1/00

    CPC分类号： A61B6/06 ,  A61B6/0421 ,  A61B6/0457 ,  A61B6/08 ,  A61B6/482 ,  A61B6/488 ,  A61B6/505 ,  G21K1/10 ,  A61B6/405 ,  A61B6/548 ,  A61B6/583

    摘要： An x-ray bone densitometry system having an apparatus for positioning body parts is provided. The system includes a patient table having a length extending along a Y-axis and a width extending along an X-axis, a C-arm supporting an x-ray source at one side and an x-ray detector at an opposite side of the table, wherein the source and detector are aligned along a source-detector axis which is transverse to the Y-axis. The source is selectively energized and emits a fan beam of x-rays which conforms to a beam plane which is transverse to the Y-axis and contains the source-detector axis. A forearm positioner is removably supported on the table and includes an arm rest portion positioned at a selected distance along the X-axis from an edge of the table. A hand supporting member is configured to fit within the arm rest portion to maintain the position of a patient's hand in a predetermined shape when the source is energized.

    摘要翻译： 提供了具有用于定位身体部位的装置的x射线骨密度测定系统。 该系统包括具有沿着Y轴延伸的长度和沿X轴延伸的宽度的患者台，支撑一侧的x射线源的C形臂和在一侧的X射线检测器 表格，其中源和检测器沿着横向于Y轴的源 - 检测器轴对齐。 源被选择性地通电并且发射符合垂直于Y轴并且包含源检测器轴线的束平面的X射线的扇形束。 前臂定位器可移除地支撑在工作台上，并且包括从桌子的边缘沿着X轴定位在选定距离的扶手部分。 手部支撑构件配置成装配在扶手部分内，以在源被激励时将患者的手的位置保持在预定的形状。

    Whole-body x-ray bone densitometry using a narrow-angle fan beam, including variable fan beam displacement between scan passes
    3.
    发明授权
    Whole-body x-ray bone densitometry using a narrow-angle fan beam, including variable fan beam displacement between scan passes 失效
    全身x射线骨密度测定使用窄角扇形束，包括扫描通道之间的可变扇形光束位移

    公开(公告)号：US5838765A

    公开(公告)日：1998-11-17

    申请号：US486368

    申请日：1995-06-07

    申请人： Russell J. Gershman ,  Richard E. Cabral ,  Noah Berger ,  Jay A. Stein

    发明人： Russell J. Gershman ,  Richard E. Cabral ,  Noah Berger ,  Jay A. Stein

    IPC分类号： A61B6/00 ,  A61B6/04 ,  A61B6/06 ,  A61B6/08 ,  G21K1/10 ,  G21K5/10

    CPC分类号： A61B6/06 ,  A61B6/0421 ,  A61B6/0457 ,  A61B6/08 ,  A61B6/482 ,  A61B6/488 ,  A61B6/505 ,  G21K1/10 ,  A61B6/405 ,  A61B6/548 ,  A61B6/583

    摘要： A whole body x-ray bone densitometry system includes a table extending parallel to a Y-axis of an XYZ coordinate system for supporting a patient at a patient position; an x-ray source for emitting a narrow angle fan beam of x-rays to irradiate at any one time a scan line which is transverse to the Y-axis and is substantially shorter than the width of a body cross-section of a typical adult patient occupying the patient position. An x-ray detector is aligned with the source along a source-detector axis which is transverse to the Y-axis, for receiving x-rays from the source within the angle of the fan beam after passage thereof through the patient position. The detector has a number of detecting elements arranged along a direction transverse to the Y-axis and to the source-detector axis. A source-detector support on which the source and detector are mounted at opposite sides of the patient position is coupled with a scanning mechanism moving at least one of the patient table and the source-detector support relative to the other to scan the patient position with the narrow angle fan beam in successive scans parallel to the Y-axis in which the source-detector axis is at different angles relative to the patient position as between different ones of successive scans, but in each of the successive scans, an origin of the fan beam in the source is at the same vertical distance from the patient table. The distance between the fan beam origin and the table may be selectively varied between scan passes, in order to vary scan pass magnification.

    摘要翻译： 全身x射线骨密度测定系统包括平行于XYZ坐标系的Y轴延伸的表，用于将病人支撑在患者位置; x射线源，用于发射X射线的窄角扇形束，以在任何一个时刻照射横向于Y轴的扫描线，并且基本上比典型成年人的身体横截面的宽度短 患者占据病人的位置。 X射线检测器沿着横向于Y轴的源 - 检测器轴与源对准，用于在通过患者位置之后在扇形束的角度内从源收到X射线。 检测器具有沿横向于Y轴和源检测器轴线的方向布置的多个检测元件。 源和检测器安装在患者位置的相对侧处的源检测器支撑件与扫描机构联接，扫描机构相对于另一个移动患者台和源检测器支撑件中的至少一个，以扫描患者位置， 平行于Y轴的连续扫描中的窄角风扇光束，其中源 - 检测器轴线相对于患者位置处于不同的连续扫描之间的不同角度，但是在每个连续扫描中， 源中的扇形光束与患者台处于相同的垂直距离。 可以在扫描通过之间选择性地改变风扇光束原点和台之间的距离，以便改变扫描通过倍率。

    X-ray bone densitometry apparatus
    5.
    发明授权
    X-ray bone densitometry apparatus 失效
    X射线骨密度测定装置

    公开(公告)号：US06217214B1

    公开(公告)日：2001-04-17

    申请号：US08968777

    申请日：1997-11-10

    申请人： Richard E. Cabral ,  Russell J. Gershman

    发明人： Richard E. Cabral ,  Russell J. Gershman

    IPC分类号： A61B604

    CPC分类号： G21K1/10 ,  A61B6/0421 ,  A61B6/0457 ,  A61B6/06 ,  A61B6/08 ,  A61B6/405 ,  A61B6/482 ,  A61B6/488 ,  A61B6/505 ,  A61B6/548 ,  A61B6/583

    摘要： Radiological apparatus, such as bone densitometry measurement systems that utilize a penetrating radiation source, such as an x-ray source is provided. The apparatus includes a patient table with a length extending along a Y-axis and a width extending along an X-axis and a C-arm supporting, for example, an x-ray source at one side of the table and an x-ray detector at an opposite side of the table such that the source and detector are aligned along a source-detector axis. The source is energized to emit a fan beam of x-rays which conform to a beam plane which is transverse to the Y-axis and contains the source-detector axis. Either, or both, the C-arm or the table are selectively movable relative to the other along the X-axis, along the Y-axis, and along a Z-axis which is transverse to both the X-axis and the Y-axis, so that selected regions of a patient on the table can be selectively scanned with the fan beam of X-rays. In addition, the C-arm is selectively rotatable around a rotational axis extending along the Y-axis to selectively change the angle of the fan beam relative to a patient on the table.

    摘要翻译： 提供放射学装置，例如利用穿透性辐射源（例如x射线源）的骨密度测量系统。 该装置包括具有沿着Y轴延伸的长度和沿X轴延伸的宽度的患者台，以及支撑例如桌子一侧的x射线源的C形臂以及X射线 检测器在工作台的相对侧，使得源和检测器沿着源检测器轴对准。 源被激励以发射符合横向于Y轴并且包含源检测器轴线的束平面的X射线的扇形束。 C形臂或台面中的任一个或两者可沿Y轴沿着X轴相对于另一个选择性地移动，并且沿着横向于X轴和Y轴的Z轴可选择地移动， 使得可以用X射线的扇形束选择性地扫描台上的患者的选定区域。 此外，C形臂可围绕沿着Y轴延伸的旋转轴线选择性地旋转，以选择性地改变风扇梁相对于桌子上的患者的角度。

    Automated detection of platelets and reticulocytes in whole blood
    6.
    发明授权
    Automated detection of platelets and reticulocytes in whole blood 失效
    全血自动检测血小板和网织红细胞

    公开(公告)号：US4325706A

    公开(公告)日：1982-04-20

    申请号：US178486

    申请日：1980-08-15

    申请人： Russell J. Gershman ,  W. Peter Hansen ,  Alan M. Hochberg ,  J. Garland O'Connell

    发明人： Russell J. Gershman ,  W. Peter Hansen ,  Alan M. Hochberg ,  J. Garland O'Connell

    IPC分类号： G01N15/14 ,  G01N33/50 ,  G01N1/30 ,  G01N21/25

    CPC分类号： G01N33/5094 ,  G01N15/1459 ,  G01N2015/0073 ,  G01N2015/0076 ,  G01N2015/0084

    摘要： A sample of whole blood is stained with an acridine orange reagent, and is analyzed rapidly, a cell at a time, in a flow cytometry system having a sample stream dimension in the range of expected red cell dimensions. Red florescence and forward scatter data is utilized first to discriminate a cell from noise, and then to distinguish platelets from reticulocytes and red cells. The red cell and reticulocyte data is subjected to a correction such as rotational coordinate shift, and the shifted data are, by means of statistical procedures, utilized to determine threshold criteria separating red cells from reticulocytes, and to enumerate the cells on that basis.

    摘要翻译： 用吖啶橙试剂染色全血样品，并在流式细胞仪系统中快速分析细胞，流式细胞仪系统中样品流尺寸在预期的红细胞尺寸范围内。 首先利用红色荧光和前向散射数据来区分细胞与噪声，然后将血小板与网织红细胞和红细胞区分开来。 对红细胞和网状细胞数据进行诸如旋转坐标移位的校正，并且通过统计程序利用移位的数据来确定将红细胞与网织红细胞分离的阈值标准，并在此基础上枚举细胞。