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    Process for making a plastic material
    22.
    发明授权
    Process for making a plastic material 失效
    制造塑料材料的工艺

    公开(公告)号：US06375881B1

    公开(公告)日：2002-04-23

    申请号：US09367347

    申请日：1999-10-26

    Applicant: Thomas Foelster ,  Ralph Greiner ,  Dirk Schaefer

    Inventor： Thomas Foelster ,  Ralph Greiner ,  Dirk Schaefer

    IPC: B29B906

    CPC classification number: C08J5/045 ,  B29C45/0005 ,  B29C70/10 ,  B29K2093/00 ,  B29K2105/0088 ,  B29K2293/00 ,  B29K2311/00 ,  B29K2311/10 ,  B29K2995/006

    Abstract: A process for the preparation of fiber-reinforced plastic molding includes (1) shortening the fibers to a length of less than 30 mm; (2) introducing the fibers and the plastics present in the solid state, separately from one another, into a mixing chamber of a die press, wherein the plastic is in particulate form; (3) thoroughly mixing the plastic and fibers to give a solids mixture; (4) transporting the solids mixture through die orifices of the die press; (5) heating the solids mixture in the zone before or in the orifices of the die; (6) enclosing at least part or partly embedding the fibers by the plastic during or after the heating of the solids mixture; and (7) comminuting the granulated material for subsequent molding.

    Abstract translation: 制备纤维增强塑料成型的方法包括（1）将纤维缩短到小于30mm的长度; （2）将固体状态的纤维和塑料彼此分开地引入模压机的混合室中，其中塑料为颗粒形式; （3）充分混合塑料和纤维，得到固体混合物; （4）将固体混合物输送通过模压机的模口; （5）在模具的孔口之前或之内加热该区域中的固体混合物; （6）在固体混合物的加热期间或之后包围至少部分或部分地通过塑料包埋纤维; 和（7）粉碎粒状材料以备后续成型。

    Adaptive roadmapping
    24.
    发明授权
    Adaptive roadmapping 有权
    自适应路线图

    公开(公告)号：US09053535B2

    公开(公告)日：2015-06-09

    申请号：US13810680

    申请日：2011-07-15

    Applicant: Raoul Florent ,  Vincent Auvray ,  Michael Grass ,  Dirk Schaefer ,  Gert Schoonenberg

    Inventor： Raoul Florent ,  Vincent Auvray ,  Michael Grass ,  Dirk Schaefer ,  Gert Schoonenberg

    IPC: G06K9/00 ,  G06T7/00 ,  A61B6/12 ,  A61B6/00 ,  A61B19/00 ,  G06T19/00

    CPC classification number: G06T7/0012 ,  A61B6/12 ,  A61B6/463 ,  A61B6/487 ,  A61B6/504 ,  A61B6/5235 ,  A61B90/37 ,  A61B2090/364 ,  A61B2090/365 ,  A61B2090/3764 ,  G06T7/32 ,  G06T19/00 ,  G06T2207/10121 ,  G06T2207/30101

    Abstract: An adaptive roadmapping device and method for examination of an object include providing pre-navigation image data representing part of the object being a vascular structure including an element of interest and having a tree-like structure with a plurality of sub-trees; generating a vessel representation based on the pre-navigation image data; acquiring live image data of the object; determining spatial relation of the pre-navigation image data and the live image data; analyzing the live image data by identifying and localizing the element in the live image data; determining a sub-tree in which the element is positioned, where the determining is based on the localization of the element and on the spatial relation; selecting a portion of the vascular structure based on the determined sub-tree; generating a combination of the live image data and an image of the selected portion of the vascular structure; and displaying the combination as a tailored roadmap.

    Abstract translation: 用于检查对象的自适应路线图设备和方法包括提供表示作为包括感兴趣元素并且具有多个子树的树状结构的血管结构的对象的一部分的导航前图像数据; 基于导航前图像数据生成船舶表示; 获取对象的实时图像数据; 确定所述导航前图像数据和实况图像数据的空间关系; 通过识别和定位实时图像数据中的元素来分析实况图像数据; 确定元素位于其中的子树，其中确定基于元素的定位和空间关系; 基于确定的子树选择血管结构的一部分; 生成活体图像数据和血管结构的所选部分的图像的组合; 并将该组合显示为定制的路线图。

    Method and Apparatus for Automatic 4D Coronary Modeling and Motion Vector Field Estimation
    27.
    发明申请
    Method and Apparatus for Automatic 4D Coronary Modeling and Motion Vector Field Estimation 审中-公开
    自动4D冠状动脉造影和运动矢量场估计方法与装置

    公开(公告)号：US20080205722A1

    公开(公告)日：2008-08-28

    申请号：US12063682

    申请日：2006-08-04

    Applicant: Dirk Schaefer ,  Michael Grass ,  Uwe Jandt

    Inventor： Dirk Schaefer ,  Michael Grass ,  Uwe Jandt

    IPC: G06K9/00

    CPC classification number: G06T7/11 ,  G06T2207/10121 ,  G06T2207/20132 ,  G06T2207/20156 ,  G06T2207/30101

    Abstract: A method for computer-aided four-dimensional (4D) modeling of an anatomical object comprises acquiring a set of three-dimensional (3D) models representing a plurality of static states of the object throughout a cycle. A 4D correspondency estimation is performed on the set of 3D models to determine which points of the 3D models most likely correspond to each other, wherein the 4D correspondency estimation includes one or more of (i) defining a reference phase, (ii) performing vessel-oriented correspondency estimation, and (iii) post-processing of 4D motion data. The method further comprises automatic 3D modeling with a front propagation algorithm.

    Abstract translation: 用于解剖对象的计算机辅助四维（4D）建模的方法包括在整个循环中获取表示对象的多个静态的一组三维（3D）模型。 对所述3D模型集进行4D对应度估计，以确定所述3D模型中哪些点最可能彼此对应，其中所述4D对应度估计包括以下中的一个或多个（i）定义参考相位，（ii）执行血管 （iii）4D运动数据的后处理。 该方法还包括利用前向传播算法的自动3D建模。

    Angiographic image acquisition system and method with automatic shutter adaptation for yielding a reduced field of view covering a segmented target structure or lesion for decreasing X-radiation dose in minimally invasive X-ray-guided interventions
    28.
    发明授权
    Angiographic image acquisition system and method with automatic shutter adaptation for yielding a reduced field of view covering a segmented target structure or lesion for decreasing X-radiation dose in minimally invasive X-ray-guided interventions 有权
    血管造影图像采集系统和方法具有自动快门适应，以产生覆盖分割的目标结构或损伤的减少的视野，以减少微创X射线指导干预中的X射线剂量

    公开(公告)号：US09280837B2

    公开(公告)日：2016-03-08

    申请号：US13121800

    申请日：2009-10-07

    Applicant: Michael Grass ,  Dirk Schaefer ,  Gert Antonius Franciscus Schoonenberg

    Inventor： Michael Grass ,  Dirk Schaefer ,  Gert Antonius Franciscus Schoonenberg

    IPC: G06F19/00 ,  G06T11/00 ,  G06T15/08 ,  A61B6/00 ,  A61B6/06

    CPC classification number: G06T11/008 ,  A61B6/06 ,  A61B6/4441 ,  A61B6/481 ,  A61B6/504 ,  A61B6/5247 ,  A61B6/542 ,  G06F19/00 ,  G06F19/321 ,  G06T15/08 ,  G06T2211/404 ,  G16H40/63

    Abstract: The present invention refers to an angiographic image acquisition system and method which can beneficially be used in the scope of minimally invasive image-guided interventions. In particular, the present invention relates to a system and method for graphically visualizing a pre-interventionally virtual 3D representation of a patient's coronary artery tree's vessel segments in a region of interest of a patient's cardiovascular system to be three-dimensionally reconstructed. Optionally, this 3D representation can then be fused with an intraoperatively acquired fluoroscopic 2D live image of an interventional tool. According to the present invention, said method comprises the steps of subjecting the image data set of the 3D representation associated with the precalculated optimal viewing angle to a 3D segmentation algorithm (S4) in order to find the contours of a target structure or lesion to be examined and interventionally treated within a region of interest and automatically adjusting (S5) a collimator wedge position and/or aperture of a shutter mechanism used for collimating an X-ray beam emitted by an X-ray source of a C-arm-based 3D rotational angiography device or rotational gantry-based CT imaging system to which the patient is exposed during an image-guided radiographic examination procedure based on data obtained as a result of said segmentation which indicate the contour and size of said target structure or lesion. The aim is to reduce the region of interest to a field of view that covers said target structure or lesion together with a user-definable portion of the surrounding vasculature.

    Abstract translation: 本发明涉及一种血管造影图像采集系统和方法，可有利地用于微创图像引导干预的范围。 特别地，本发明涉及一种用于以图形方式可视化患者心血管系统感兴趣区域中的患者冠状动脉树血管段的预先介入虚拟3D表示以进行三维重构的系统和方法。 可选地，该3D表示随后可以与介入工具的术中获取的荧光透视2D实况图像融合。 根据本发明，所述方法包括以下步骤：将与预先计算的最佳视角相关联的3D表示的图像数据集进行3D分割算法（S4），以便将目标结构或病变的轮廓找到为 在感兴趣区域内进行检查和介入处理，并自动调整（S5）用于准直由基于C臂的3D的X射线源发射的X射线束的快门机构的准直器楔位置和/或孔径 旋转血管造影装置或基于旋转台架的CT成像系统，其中基于由所述分割结果获得的指示所述目标结构或病变的轮廓和大小的图像引导放射线检查程序期间所述患者暴露于所述CT成像系统。 目的是将感兴趣的区域减少到覆盖所述目标结构或病变的视野以及周围脉管系统的用户可定义的部分。

    ADAPTIVE ROADMAPPING
    29.
    发明申请
    ADAPTIVE ROADMAPPING 有权
    自适应路线

    公开(公告)号：US20130322724A1

    公开(公告)日：2013-12-05

    申请号：US13810680

    申请日：2011-07-15

    Applicant: Raoul Florent ,  Vincent Auvray ,  Michael Grass ,  Dirk Schaefer ,  Gert Schoonenberg

    Inventor： Raoul Florent ,  Vincent Auvray ,  Michael Grass ,  Dirk Schaefer ,  Gert Schoonenberg

    IPC: G06T7/00

    CPC classification number: G06T7/0012 ,  A61B6/12 ,  A61B6/463 ,  A61B6/487 ,  A61B6/504 ,  A61B6/5235 ,  A61B90/37 ,  A61B2090/364 ,  A61B2090/365 ,  A61B2090/3764 ,  G06T7/32 ,  G06T19/00 ,  G06T2207/10121 ,  G06T2207/30101

    Abstract: The invention relates to adaptive roadmapping providing improved information to the user, comprising the following steps: providing pre-navigation image data representing at least a part of a vascular structure comprising a tree-like structure with a plurality of sub-trees; generating a vessel representation on the basis of pre-navigation image data; acquiring live image data of the object, which object comprises the vascular structure; wherein the vascular structure contains an element of interest; determining spatial relation of the pre-navigation image data and the live image data; analysing the live image data by identifying and localizing the element in the live image data; determining a sub-tree in which the element is positioned, wherein the determining is based on the localization of the element and on the spatial relation; and selecting a portion of the vascular structure based on the determined sub-tree; generating a combination of the live image data and an image of the selected portion of the vascular structure; and displaying the combination as a tailored roadmap. The element may be physical object, for example an interventional tool or device.

    Abstract translation: 本发明涉及向用户提供改进信息的自适应路线图，包括以下步骤：提供表示包括具有多个子树的树状结构的血管结构的至少一部分的导航前图像数据; 基于导航前图像数据生成船舶表示; 获取对象的实时图像数据，该对象包括血管结构; 其中所述血管结构含有感兴趣的元件; 确定所述导航前图像数据和实况图像数据的空间关系; 通过识别和定位实时图像数据中的元素来分析实况图像数据; 确定所述元素所在的子树，其中所述确定基于所述元素的定位和所述空间关系; 以及基于所确定的子树选择所述血管结构的一部分; 生成活体图像数据和血管结构的所选部分的图像的组合; 并将该组合显示为定制的路线图。 该元件可以是物理对象，例如介入工具或设备。

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