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公开(公告)号：US5768340A
公开(公告)日：1998-06-16
申请号：US800250
申请日：1997-02-13
CPC分类号： G21K1/10
摘要： An X-ray examination apparatus includes an X-ray filter with a plurality of filter elements for locally attenuating the X-ray beam. The X-ray absorptivity of each filter element is controlled by the amount of X-ray absorbing liquid with which the filter element is filled. The filling of filter elements is controlled by a voltage. The X-ray absorbing liquid contains a suspension of very small X-ray absorbing particles.
摘要翻译： X射线检查装置包括具有用于局部衰减X射线束的多个滤波器元件的X射线滤波器。 每个过滤元件的X射线吸收率由填充有过滤元件的X射线吸收液的量来控制。 过滤元件的填充由电压控制。 X射线吸收液含有非常小的X射线吸收粒子的悬浮液。
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公开(公告)号：US5625665A
公开(公告)日：1997-04-29
申请号：US546027
申请日：1995-10-20
申请人： Lambertus G. J. Fokkink , Petrus W. J. Linders , Johanna A. M. Sondag-Huet-Horst , Andre R. De Wit , Rudolf Kemner , Frans J. A. Berkers
发明人： Lambertus G. J. Fokkink , Petrus W. J. Linders , Johanna A. M. Sondag-Huet-Horst , Andre R. De Wit , Rudolf Kemner , Frans J. A. Berkers
CPC分类号： G21K1/10
摘要： An X-ray apparatus is provided with a filter (12) for limiting the dynamic range of an X-ray image formed on an X-ray detector (4) by exposure of an object (3), for example a patient to be examined, to X-rays (2). The filter (12) has filter elements (13) including one or more capillary tubes (13), one end of which communicates with a reservoir with an X-ray absorbing liquid. The adhesion of the X-ray absorbing liquid to the inner side of the capillary tubes can be adjusted by means of an electric voltage applied to an electrically conductive layer provided on the inner side of the capillary tubes (13). The degree of filling of the capillary tubes (13) with the X-ray absorbing liquid is adjusted by way of the electric voltage value. The X-ray absorption profile is adjusted within a very short period of time, for example within one second, by adjustment of the electric voltages applied to the capillary tubes (13).
摘要翻译： X射线装置设置有用于通过物体（3）例如待检查的患者的暴露来限制形成在X射线检测器（4）上的X射线图像的动态范围的滤光器（12） ，到X射线（2）。 过滤器（12）具有包括一个或多个毛细管（13）的过滤元件（13），其一端与储存器与X射线吸收液体连通。 可以通过施加到设置在毛细管（13）的内侧上的导电层的电压来调节X射线吸收液体到毛细管内侧的粘附。 通过电压值调节毛细管（13）与X射线吸收液的填充程度。 通过调整施加到毛细管（13）上的电压，在非常短的时间段（例如1秒钟内）调整X射线吸收曲线。
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公开(公告)号：US06383601B1
公开(公告)日：2002-05-07
申请号：US09316779
申请日：1999-05-21
IPC分类号： B32B312
摘要： The invention relates to a method of manufacturing honeycomb stuctures in which multiple foils are welded together by means of thermal compression and the multiple foils form the honeycomb structure in the expanded condition. The bonding locations, where the foils are fused together, are defined by inserting a structured separating layer between the foils. The invention also relates to, for example, luminaries and x-ray apparatus using a honeycomb structure so manufactured.
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公开(公告)号：US06215848B1
公开(公告)日：2001-04-10
申请号：US09208508
申请日：1998-12-09
IPC分类号： A61B603
CPC分类号： A61B6/481 , A61B6/504 , A61B6/5241 , H04N5/3205
摘要： A method for forming an assembled image from successive sub-images comprises the step of acquiring the sub-images, notably X-ray images, with an X-ray detector comprising an essentially flat X-ray-sensitive surface. An X-ray examination apparatus comprises an X-ray detector having a flat X-ray sensitive surface. Advantageously, difference images are derived from successive sub-images. For example, the assembled image derived from the difference images is used to display blood flow patterns in a patient's vascular system.
摘要翻译： 用于从连续子图像形成组合图像的方法包括用包括基本平坦的X射线敏感表面的X射线检测器获取子图像，特别是X射线图像的步骤。 X射线检查装置包括具有平坦的X射线敏感表面的X射线检测器。 有利地，从连续的子图像导出差分图像。 例如，从差分图像得到的组合图像用于显示患者血管系统中的血流图案。
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公开(公告)号：US5666396A
公开(公告)日：1997-09-09
申请号：US679036
申请日：1996-07-12
CPC分类号： G21K1/10
摘要： An X-ray examination apparatus in accordance with the invention includes a filter (4) for limiting the dynamic range of an X-ray image which is formed on an X-ray detector (4) by irradiation of an object (3), for example a patient to be examined, by means of X-rays (15). The filter (4) includes filter elements (5), being capillary tubes (5), one end of which communicates with an X-ray absorbing liquid. The adhesion of the X-ray absorbing liquid to the inner side of the capillary tubes is adjustable by means of an electric voltage which can be applied to an electrically conductive layer (36) provided on the inner side of the capillary tubes (5). The filling of the capillary tubes (5) with the X-ray absorbing liquid is adjusted on the basis of the period of time during which the electric voltage is applied. This period of time can be subdivided into a number of fractions and individual rows of capillary tubes are then filled with the X-ray absorbing liquid partly in parallel.
摘要翻译： 根据本发明的X射线检查装置包括：滤光器（4），用于通过对象（3）的照射来限制在X射线检测器（4）上形成的X射线图像的动态范围，用于 例如通过X射线检查的患者（15）。 过滤器（4）包括过滤器元件（5），其是毛细管（5），其一端与X射线吸收液体连通。 通过可以施加到设置在毛细管（5）的内侧上的导电层（36）的电压来调节X射线吸收液体到毛细管内侧的粘附。 基于施加电压的时间段来调整毛细管（5）与X射线吸收液的填充。 这段时间可以细分成多个部分，然后将各行毛细管部分地并入X射线吸收液中。
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公开(公告)号：US06252939B1
公开(公告)日：2001-06-26
申请号：US09440766
申请日：1999-11-16
申请人： Edward W. A. Young , Menno W. J. Prins , Johannes W. Weekamp , Jacobus B. Giesbers , Petrus W. J. Linders , Andreas C. M. Van Nes
发明人： Edward W. A. Young , Menno W. J. Prins , Johannes W. Weekamp , Jacobus B. Giesbers , Petrus W. J. Linders , Andreas C. M. Van Nes
IPC分类号： G21K300
CPC分类号： G21K1/10
摘要： The X-ray examination apparatus includes an X-ray source, an X-ray detector and an X-ray filter which is located between the X-ray source and the X-ray detector. The X-ray filter includes elements, notably capillary tubes, and the X-ray absorptivity of separate filter elements is adjustable by adjustment of a quantity of X-ray absorbing liquid in the respective filter elements. The quantity of X-ray absorbing liquid in the individual filter elements is adjusted by way of electric voltages applied to the individual filter elements. A control system is provided to apply the electric voltages selectively to the individual filter elements. The control system includes voltage lines and switching elements which electrically couple the filter elements to an electric voltage source. The filter elements are formed by spaces between corrugated plates or parallel plates provided with separating members, such as protrusions which extend transversely of the plates. The voltage lines are disposed on the plates. Preferably, the plates are formed from a stack of extendable wall foils and separating foils are provided partially between the wall foils so as to adapt the spacing of the voltage lines to the spacing of the switching elements.
摘要翻译： X射线检查装置包括位于X射线源和X射线检测器之间的X射线源，X射线检测器和X射线滤波器。 X射线滤波器包括元件，特别是毛细管，并且可以通过调节各个滤光元件中的X射线吸收液体的量来调节分离的滤光元件的X射线吸收率。 通过施加到各个过滤元件的电压来调节各个过滤元件中的X射线吸收液体的量。 提供控制系统以将电压选择性地施加到各个滤波器元件。 控制系统包括将过滤元件电耦合到电压源的电压线和开关元件。 过滤元件由波纹板或设置有分离构件的平行板之间的空间形成，例如横向于板延伸的突起。 电压线设置在板上。 优选地，板由一叠可延伸的壁箔形成，并且分离箔部分地设置在壁箔之间，以便使电压线的间隔适应于开关元件的间隔。
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公开(公告)号：US06440527B2
公开(公告)日：2002-08-27
申请号：US09858726
申请日：2001-05-16
IPC分类号： B32B312
CPC分类号： B29D99/0089 , B29C37/0075 , G21K1/10 , Y10T156/1003 , Y10T428/1234 , Y10T428/12347 , Y10T428/24149 , Y10T428/24165
摘要： The invention relates to a method of manufacturing honeycomb structures in which multiple foils are welded together by means of thermal compression and the multiple foils form the honeycomb structure in the expanded condition. The bonding locations, where the foils are fused together, are defined by inserting a structured layer between the foils.
摘要翻译： 本发明涉及一种制造蜂窝结构体的方法，其中多个箔通过热压而焊接在一起，并且多个箔在膨胀状态下形成蜂窝结构。 通过在箔之间插入结构化层来限定箔融合在一起的粘合位置。
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公开(公告)号：US06292534B1
公开(公告)日：2001-09-18
申请号：US09208505
申请日：1998-12-09
IPC分类号： G01T100
CPC分类号： A61B6/4464 , A61B6/4233 , H04N5/32
摘要： An X-ray examination apparatus includes an X-ray detector for deriving an image signal from an X-ray image. The X-ray detector has an essentially elongate X-ray-sensitive surface. The X-ray sensitive surface of the X-ray detector corresponds notably to a relevant part of the object to be examined.
摘要翻译： X射线检查装置包括用于从X射线图像导出图像信号的X射线检测器。 X射线检测器具有基本上细长的X射线敏感表面。 X射线检测器的X射线敏感表面特别对应于被检查物体的相关部分。
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9.发明授权X-ray examination apparatus including a control loop for adjusting the X-ray flux 失效X射线检查装置包括用于调整X射线通量的控制回路公开(公告)号：US06289078B1
公开(公告)日：2001-09-11
申请号：US09466410
申请日：1999-12-17
IPC分类号： H05G164
CPC分类号： H05G1/36
摘要： An X-ray examination apparatus includes an X-ray source (1) for emitting an X-ray beam, an X-ray detector (6) for detecting an X-ray image and converting it into an optical image, and a video extractor (8) which is coupled to the X-ray detector (6) via optical coupling means (9). The optical coupling means (9) is provided with an optical pick up (11) for feeding a fraction of the light flux to a photosensor (12) which produces a control signal for adjusting the X-ray flux from the X-ray source (1). The photosensor (6) is provided with an array of pixels, with weighting means for the signals detected in or by each of said pixels, and with means for determining a mean value of the detected and weighted signals, yielding a control signal which is fed back in order to adjust the X-ray flux from the X-ray source (1).
摘要翻译： X射线检查装置包括用于发射X射线束的X射线源（1），用于检测X射线图像并将其转换为光学图像的X射线检测器（6），以及视频提取器 （8），其通过光耦合装置（9）耦合到X射线检测器（6）。 光学耦合装置（9）设置有用于将光束的一部分馈送到光电传感器（12）的光学拾取器（11），该光电传感器产生用于调整来自X射线源的X射线通量的控制信号 1）。 光传感器（6）设置有像素阵列，具有用于在每个所述像素中检测到的信号的加权装置，以及用于确定检测和加权信号的平均值的装置，产生被馈送的控制信号 以从X射线源（1）调整X射线通量。
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公开(公告)号：US6061426A
公开(公告)日：2000-05-09
申请号：US166432
申请日：1998-10-05
申请人： Petrus W. J. Linders , Herman Stegehuis , Wilhelmus J. J. Welters , Nicolaas P. Willard , Lambertus G. J. Fokkink
发明人： Petrus W. J. Linders , Herman Stegehuis , Wilhelmus J. J. Welters , Nicolaas P. Willard , Lambertus G. J. Fokkink
CPC分类号： G21K1/10
摘要： An X-ray examination apparatus includes an X-ray source (1) for emitting X-rays. An object to be radiologically examined is arranged in an examination space. An X-ray detector (2) derives an image signal, for example an electronic video signal, from an X-ray image of the object. An X-ray filter locally attenuates the X-rays partly. The X-ray filter is arranged between the X-ray source and the X-ray detector and the X-ray filter is provided with filter elements whose X-ray absorptivity can be adjusted on the basis of an amount of X-ray absorbing liquid present within the individual filter elements.The X-ray examination apparatus includes an X-ray collimator for locally intercepting the X-rays. The X-ray collimator is arranged between the X-ray source and the examination space and is provided with collimator elements which can be switched between an X-ray transmitting state and an X-ray intercepting state. Individual collimator elements are filled with an X-ray intercepting liquid in the X-ray intercepting state.The amount of X-ray absorbing liquid present in the filter elements is controlled by application of an electric voltage to the relevant filter elements. The collimator elements are switched between the X-ray intercepting state and the X-ray transmitting state by means of an electric voltage which is applied to the relevant collimator elements.
摘要翻译： X射线检查装置包括用于发射X射线的X射线源（1）。 将放射学检查的对象布置在检查空间中。 X射线检测器（2）从对象的X射线图像导出图像信号，例如电子视频信号。 X射线滤波器部分地局部衰减X射线。 X射线滤光器配置在X射线源和X射线检测器之间，X射线滤光片设置有可以根据X射线吸收液量的X射线吸收率进行调整的滤光元件 存在于各个过滤元件内。 X射线检查装置包括用于局部截断X射线的X射线准直器。 X射线准直仪设置在X射线源和检查空间之间，并且设置有能够在X射线透射状态和X射线截取状态之间切换的准直元件。 单个准直器元件在X射线拦截状态下被X射线拦截液体填充。 通过向相关的过滤元件施加电压来控制存在于过滤元件中的X射线吸收液体的量。 准直器元件通过施加到相关准直器元件的电压在X射线拦截状态和X射线透射状态之间切换。
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