X-ray diagnostics installation
    11.
    发明授权
    X-ray diagnostics installation 失效
    X光诊断安装

    公开(公告)号:US5448613A

    公开(公告)日:1995-09-05

    申请号:US160654

    申请日:1993-12-02

    CPC classification number: A61B6/4225 H04N5/2351 H04N5/32 H05G1/36 H05G1/64

    Abstract: An x-ray diagnostics installation has an x-ray image intensifier video chain which includes a semiconductor detector composed of pixels arranged in a matrix, serving as the video pick-up and a detector for identifying the average image brightness at the output luminescence screen of the x-ray image intensifier within a predetermined image region. A first read-out circuit is provided for pixels of a first group in the image, which is operated with a read-out clock at a first frequency, and a second read-out circuit is provided for pixels of a second group distributed over the area of the semiconductor detector, which is operated with a read-out clock at a second frequency. The second frequency is higher than the first frequency. The output signals of the pixels of the second group are supplied to an evaluation circuit, and the output signals of the first group of pixels are supplied to the video chain. Image production parameters, such as image brightness, can be controlled on the basis of the output signals of the second group of pixels.

    Abstract translation: x射线诊断装置具有x射线图像增强器视频链,其包括由排列成矩阵的像素组成的半导体检测器,用作视频拾取器,以及用于识别输出发光屏幕上的平均图像亮度的检测器 x射线图像增强器在预定图像区域内。 为图像中的第一组的像素提供第一读出电路,其以第一频率的读出时钟操作,并且为第二组分配的第二组的像素提供第二读出电路 半导体检测器的区域,其以第二频率的读出时钟操作。 第二频率高于第一频率。 将第二组的像素的输出信号提供给评估电路,并将第一组像素的输出信号提供给视频链。 可以基于第二组像素的输出信号来控制诸如图像亮度的图像产生参数。

    X-ray diagnostics installation having a variable aperture diaphragm and
method for operating same
    12.
    发明授权
    X-ray diagnostics installation having a variable aperture diaphragm and method for operating same 失效
    具有可变孔径光阑的X射线诊断装置及其操作方法

    公开(公告)号:US5412704A

    公开(公告)日:1995-05-02

    申请号:US283191

    申请日:1994-08-04

    Inventor: Heinz Horbaschek

    CPC classification number: A61B6/4225 A61B6/06 H05G1/60 A61B6/541

    Abstract: An x-ray diagnostics installation includes an x-ray tube, a variable aperture diaphragm, and an x-ray image intensifier video chain which includes an x-ray image intensifier, a video pick-up unit, a processing circuit, and a playback unit. The variable aperture diaphragm has a central region and an outer region which exhibit different x-ray transparencies. When adjusted to a first position, the aperture diaphragm permits x-rays to pass only through said central region unattenuated. The aperture diaphragm is adjusted to a second position for every n.sup.th image, wherein both the central region and the outer region permit x-rays to pass through the diaphragm unattenuated. Each n.sup.th image is entered into an image memory connected to the video pick-up unit and is superimposed on an image produced when the diaphragm is in the first position.

    Abstract translation: X射线诊断装置包括X射线管,可变孔径光阑和x射线图像增强器视频链,其包括x射线图像增强器,视频拾取单元,处理电路和回放 单元。 可变孔径光阑具有呈现不同x射线透明度的中心区域和外部区域。 当调节到第一位置时,孔径光阑允许x射线仅通过所述中心区域而不衰减。 孔径光阑被调整到第n个图像的第二位置,其中中心区域和外部区域都允许x射线通过隔膜。 每个第n个图像被输入到连接到视频拾取单元的图像存储器中,并且叠加在当隔膜处于第一位置时产生的图像上。

    X-ray examination apparatus with referencing system for the video display
    13.
    发明授权
    X-ray examination apparatus with referencing system for the video display 失效
    具有用于视频显示的参考系的X射线检查装置

    公开(公告)号:US4937848A

    公开(公告)日:1990-06-26

    申请号:US343739

    申请日:1989-04-27

    Abstract: An x-ray examination apparatus includes a position-adjustable x-ray tube, a patient support, and a position-adjustable image pick-up system, the image pick-up system including an x-ray image intensifier and a video camera coupled thereto. The output of the video camera is shown on a display monitor. Signals identifying the position of the x-ray tube and the image-pick-up system relative to a patient are supplied to a computer, which calculates angular deviation of those components from a desired reference. Signals corresponding to any such deviations are supplied to the horizontal and vertical sawtooth voltage generators for the video camera, so that scanning of the target of the video camera is always undertaken perpendicularly relative to the reference, independently of movement of the image pick-up system.

    Abstract translation: X射线检查装置包括可位置调整的x射线管,患者支架和位置可调的图像拾取系统,所述摄像系统包括x射线图像增强器和耦合到其上的摄像机 。 摄像机的输出显示在显示屏上。 将识别X射线管和摄像系统相对于患者的位置的信号提供给计算机,该计算机计算那些部件与期望的参考的角度偏差。 对应于任何这种偏差的信号被提供给用于摄像机的水平和垂直锯齿波电压发生器,使得摄像机的目标的扫描总是相对于参考线垂直地进行,而与摄像系统的移动无关 。

    Stereoscopic x-ray tube
    14.
    发明授权
    Stereoscopic x-ray tube 失效
    立体X射线管

    公开(公告)号:US4712226A

    公开(公告)日:1987-12-08

    申请号:US886081

    申请日:1986-07-16

    Inventor: Heinz Horbaschek

    CPC classification number: H01J35/26 H01J35/06 H05G1/52 H01J2235/068

    Abstract: A stereoscopic x-ray tube has an evacuated housing with a motor-driven anode dish therein, as well as at least two cathodes. The cathodes are disposed for directing electrons onto two respective foci within at least one track of the anode dish. Each of the foci generates a beam of useful x-rays, the two beams alternating. The anode dish is divided into at least one pair of segments of identical size, each segment emitting x-rays of a different intensity, so that only one segment in each pair can emit useful x-rays. The cathodes are disposed such that their respective foci are spaced at an uneven multiple of the length of the track within a segment.

    Abstract translation: 立体X射线管具有其中具有电动阳极盘的抽真空壳体以及至少两个阴极。 设置阴极以将电子引导到阳极盘的至少一个轨道内的两个相应的焦点上。 每个焦点产生一束有用的x射线,两束交替。 阳极盘被分成至少一对相同尺寸的片段,每个片段发射不同强度的x射线,使得每对中只有一个片段可以发射有用的x射线。 阴极被布置成使得它们各自的焦点以段内的轨道的长度的不均匀倍数间隔开。

    X-ray diagnostics installation for subtraction angiography
    15.
    发明授权
    X-ray diagnostics installation for subtraction angiography 失效
    用于减影​​血管造影的X射线诊断安装

    公开(公告)号:US5630414A

    公开(公告)日:1997-05-20

    申请号:US405871

    申请日:1995-03-17

    Inventor: Heinz Horbaschek

    CPC classification number: A61B6/541 H04N5/3205 H05G1/60 A61B6/4021

    Abstract: An X-ray diagnostics installation has an X-ray source and an X-ray image intensifier video chain, including an X-ray image intensifier, a video camera, a control circuit that derives control pulses for producing images of a subject from data supplied thereto identifying exposure conditions, and a subtraction circuit for forming the difference between stored video signals and continuing, current video signals given the same exposure conditions. The X-ray source is cyclically moved during the production of a number of successive images, with the control circuit deriving the control pulses for the production of images from apparatus positions and, possibly, from the ECG of the subject. The subtraction circuit forms the difference between predetermined video signals stored for different apparatus positions and heart phases of a heart cycle and continuing, current video signals obtained at the same apparatus positions and at the same heart phase.

    Abstract translation: X射线诊断装置具有X射线源和X射线图像增强器视频链,包括X射线图像增强器,摄像机,控制电路,其从提供的数据中导出用于产生被摄体图像的控制脉冲 以及用于形成存储的视频信号与给定相同曝光条件的连续的当前视频信号之间的差的减法电路。 在产生多个连续图像期间,X射线源被循环移动,其中控制电路产生用于从设备位置和可能地从对象的ECG产生图像的控制脉冲。 减法电路形成存储在不同装置位置和心脏周期的心脏相位的预定视频信号之间的差异,以及在相同装置位置和相同心脏相位处获得的持续的当前视频信号。

    X-ray diagnostics installation having a motion detector controlling a
filter unit dependent on exposure parameters
    16.
    发明授权
    X-ray diagnostics installation having a motion detector controlling a filter unit dependent on exposure parameters 失效
    具有运动检测器的X射线诊断装置,其根据曝光参数控制滤光器单元

    公开(公告)号:US5495514A

    公开(公告)日:1996-02-27

    申请号:US353692

    申请日:1994-12-12

    CPC classification number: H04N5/32 H04N5/21 H05G1/60

    Abstract: An x-ray diagnostics installation has an x-ray source connected to a parameter setting unit which sets exposure parameters (operating characteristics) of the x-ray source, and an x-ray image intensifier video chain. The x-ray image intensifier video chain includes a processing circuit connected to a video pick-up stage and a motion detector. The processing unit controls the parameters of a filter unit for chronological filtering of the video signal. The motion detector is connected to the parameter setting unit for the x-ray source, and controls the filter unit depending on the exposure parameters which are set for a given exposure, such as the level of the video signal, the tube voltage, the radiation dose, and the imaging format of the x-ray image intensifier, all of which are set at the parameter setting unit and which characterize the exposure.

    Abstract translation: x射线诊断装置具有连接到参数设置单元的X射线源,该单元设置x射线源的曝光参数(操作特性)和x射线图像增强器视频链。 x射线图像增强器视频链包括连接到视频拾取级和运动检测器的处理电路。 处理单元控制滤波器单元的参数以便对视频信号进行时间滤波。 运动检测器连接到用于X射线源的参数设置单元,并且根据为给定曝光设置的曝光参数(例如视频信号的电平,管电压,辐射)来控制滤光器单元 剂量和X射线图像增强器的成像格式,所有这些都被设置在参数设置单元处并且表征曝光。

    X-ray diagnostics installation
    17.
    发明授权
    X-ray diagnostics installation 失效
    X光诊断安装

    公开(公告)号:US5479468A

    公开(公告)日:1995-12-26

    申请号:US350677

    申请日:1994-12-07

    CPC classification number: H05G1/64 H04N5/32 H05G1/36

    Abstract: An x-ray diagnostics installation has an operating voltage generator, an x-ray tube, an x-ray image intensifier, a video camera, a video amplifier having controllable gain, an integration circuit and a control circuit that acts on the operating voltage for dose rate control. The x-ray diagnostics installation is fashioned such that the control circuit is connected to the video amplifier and to the integration circuit and controls these components such that the gain of the video amplifier is raised when a limit value of the dose rate control is reached, with parameters of the integration circuit being simultaneously modified.

    Abstract translation: X射线诊断装置具有工作电压发生器,X射线管,x射线图像增强器,摄像机,具有可控增益的视频放大器,集成电路和控制电路,其作用于工作电压 剂量率控制。 X射线诊断装置被设计成使得控制电路连接到视频放大器和积分电路并控制这些组件,使得当达到剂量率控制的极限值时视频放大器的增益被提高, 同时对积分电路的参数进行修改。

    Radiological installation
    18.
    发明授权
    Radiological installation 失效
    放射安装

    公开(公告)号:US5371776A

    公开(公告)日:1994-12-06

    申请号:US132799

    申请日:1993-10-07

    CPC classification number: H04N1/3873

    Abstract: In a radiological installation comprising an image pick-up system having a memory for individual images and having an image playback unit, an overall image formed of at least two individual images is capable of being portrayed, the number of lines thereof being at least largely independent of the sum of the number of lines of the individual images. For that purpose, the overall image is compiled line-by-line with a processor controller such that respectively one row of stored picture elements of an individual image forms a section of one line of the overall image, and a corresponding row of stored picture elements of at least one further individual image respectively adjoins this section.

    Abstract translation: 在包括具有用于单独图像的存储器并且具有图像回放单元的图像拾取系统的放射性装置中,能够描绘由至少两个单独图像形成的整体图像,其行数至少在很大程度上是独立的 是各个图像的行数之和。 为此,整体图像与处理器控制器逐行编译,使得单独图像的一行存储的图像元素分别形成整个图像的一行的一部分,以及相应的一行存储的图像元素 至少一个另外的个人图像分别邻接该部分。

    X-Ray diagnostic installation
    19.
    发明授权
    X-Ray diagnostic installation 失效
    X射线诊断安装

    公开(公告)号:US4517594A

    公开(公告)日:1985-05-14

    申请号:US505963

    申请日:1983-06-20

    Inventor: Heinz Horbaschek

    CPC classification number: H05G1/64 H05G1/36

    Abstract: The disclosure relates to an x-ray diagnostic installation comprising an x-ray image intensifier television chain, whereby a television camera is coupled via an optics with a base lens and a camera lens to the x-ray image intensifier, a mirror being disposed in the parallel ray path of said optics for coupling a portion of the luminous flux to a light detector, wherein an additional lens is arranged between the mirror and light detector. The light detector is comprised of a matrix of photosensors whose respective outputs are connected via respective switches to a sum amplifier.

    Abstract translation: 本公开涉及一种包括x射线图像增强器电视链的X射线诊断装置,由此将电视摄像机经由光学器件与基座镜头和相机镜头耦合到X射线图像增强器,将镜子设置在 用于将光束的一部分耦合到光检测器的所述光学器件的平行射线路径,其中附加透镜布置在反射镜和光检测器之间。 光检测器由光电传感器的矩阵组成,其各自的输出通过相应的开关连接到和放大器。

    X-ray television installation for monitor photography
    20.
    发明授权
    X-ray television installation for monitor photography 失效
    X射线电视安装用于显示器摄影

    公开(公告)号:US4437117A

    公开(公告)日:1984-03-13

    申请号:US309188

    申请日:1981-10-07

    CPC classification number: H04N5/32 H04N1/23

    Abstract: An exemplary embodiment comprises an x-ray tube, an x-ray image intensifier, a television camera, a photographic camera, and a monitor system, which includes a video amplifier, a synchronizing pulse separation stage, a horizontal and a vertical deflection stage, a blanking stage and a picture tube with a deflection unit. The monitor system is provided with a pulse stage for the purpose of generating trace unblanking pulses for the formation of bright horizontal and/or vertical bars bounding the displayed image at the border of the picture tube, which pulse stage is connected with the synchronizing pulse separation stage. The photographic camera is so designed that the displayed images are adjacently photographed so as to avoid light transmitting interstices between the photographed images on the x-ray negative.

    Abstract translation: 示例性实施例包括X射线管,x射线图像增强器,电视摄像机,照相机和监视器系统,其包括视频放大器,同步脉冲分离级,水平和垂直偏转级, 消隐台和带有偏转单元的显像管。 监视器系统设置有脉冲级,用于产生跟踪非空白脉冲,用于形成在显像管边界处界定显示图像的明亮水平和/或垂直条,该脉冲级与同步脉冲分离 阶段。 照相机被设计成相邻地拍摄所显示的图像,以避免X射线底片上的拍摄图像之间的透光空隙。

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