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1. 发明授权

US08675942B2 Prior enhanced compressed sensing (PRINCE-CS) reconstruction for dynamic 2D-radial cardiac MRI 有权
标题翻译：先进的增强压缩感测（PRINCE-CS）重建动态2D-径向心脏MRI
公开(公告)号：US08675942B2
公开(公告)日：2014-03-18
申请号：US13280994
申请日：2011-10-25
申请人： Ti-chiun Chang , Mariappan S. Nadar , Jens Gühring , Michael Zenge , Kai Tobias Block , Peter Speier , Edgar Müller , Michael S. Hansen
发明人： Ti-chiun Chang , Mariappan S. Nadar , Jens Gühring , Michael Zenge , Kai Tobias Block , Peter Speier , Edgar Müller , Michael S. Hansen
IPC分类号： G06K9/00
CPC分类号： G01R33/4824 , G01R33/5608 , G01R33/56545
摘要： A reconstructed image is rendered from a set of MRI data by first estimating an image with an area which does not contain artifacts or has an artifact with a relative small magnitude. Corresponding data elements in the estimated image and a trial image are processed, for instance by multiplication, to generate an intermediate data set. The intermediate data set is transformed and minimized iteratively to generate a reconstructed image that is free or substantially free of artifacts. In one embodiment a Karhunen-Loeve Transform (KLT) is used. A sparsifying transformation may be applied to generate the reconstructed image. The sparsifying transformation may be also not be applied.
摘要翻译：通过首先用不包含伪像的区域估计图像或具有相对小的幅度的伪像，从一组MRI数据呈现重建的图像。例如通过乘法处理估计图像和试验图像中的相应数据元素以生成中间数据集。中间数据集被迭代地变换和最小化以产生自由或基本上没有伪像的重建图像。在一个实施例中，使用Karhunen-Loeve变换（KLT）。可以应用稀疏变换来生成重建图像。稀释变形也可能不适用。

2. 发明申请

US20120148129A1 Prior Enhanced Compressed Sensing (PRINCE-CS) Reconstruction for Dynamic 2D-Radial Cardiac MRI 有权
标题翻译：先进的增强压缩感应（PRINCE-CS）重建动态二维径向心脏MRI
公开(公告)号：US20120148129A1
公开(公告)日：2012-06-14
申请号：US13280994
申请日：2011-10-25
申请人： Ti-chiun Chang , Mariappan S. Nadar , Jens Gühring , Michael Zenge , Kai Tobias Block , Peter Speier , Edgar Mûller , Michael S. Hansen
发明人： Ti-chiun Chang , Mariappan S. Nadar , Jens Gühring , Michael Zenge , Kai Tobias Block , Peter Speier , Edgar Mûller , Michael S. Hansen
IPC分类号： G06K9/00
CPC分类号： G01R33/4824 , G01R33/5608 , G01R33/56545
摘要： A reconstructed image is rendered from a set of MRI data by first estimating an image with an area which does not contain artifacts or has an artifact with a relative small magnitude. Corresponding data elements in the estimated image and a trial image are processed, for instance by multiplication, to generate an intermediate data set. The intermediate data set is transformed and minimized iteratively to generate a reconstructed image that is free or substantially free of artifacts. In one embodiment a Karhunen-Loeve Transform (KLT) is used. A sparsifying transformation may be applied to generate the reconstructed image. The sparsifying transformation may be also not be applied.
摘要翻译：通过首先用不包含伪像的区域估计图像或具有相对小的幅度的伪像，从一组MRI数据呈现重建的图像。例如通过乘法处理估计图像和试验图像中的相应数据元素以生成中间数据集。中间数据集被迭代地变换和最小化以产生自由或基本上没有伪像的重建图像。在一个实施例中，使用Karhunen-Loeve变换（KLT）。可以应用稀疏变换来生成重建图像。稀释变形也可能不适用。

3. 发明授权

US4508184A Roller reamer/stabilizer 失效
标题翻译：滚筒铰刀/稳定器
公开(公告)号：US4508184A
公开(公告)日：1985-04-02
申请号：US498868
申请日：1983-05-27
申请人： Michael S. Hansen
发明人： Michael S. Hansen
IPC分类号： E21B10/30 , E21B10/20
CPC分类号： E21B10/30 , Y10T29/4984 , Y10T29/4995 , Y10T403/585 , Y10T403/7021
摘要： A roller reamer/stabilizer apparatus for use on a drill string assembly. The apparatus includes a reamer body which has a number of pockets formed in the body. A cutter assembly is anchored in each pocket. The cutter assembly includes a bearing pin on which two bearing blocks are mounted with a reamer cutter mounted in between the two bearing blocks. The entire cutter assembly is first assembled and is then placed in a corresponding pocket of the reamer body. The cutter assembly is secured within the pocket by means of pull pins which are inserted transversely through the reamer body so as to engage corresponding holes which are formed in the bearing blocks of the cutter assembly. The pull pins are secured by means of snap rings that can be easily removed so that the pull pins can then be retracted to permit the cutter assembly to be replaced after it is worn.
摘要翻译：一种用于钻柱组件的辊式铰刀/稳定器装置。该装置包括一铰链体，其具有形成在主体中的多个凹穴。刀具组件固定在每个口袋中。切割器组件包括一个支承销，两个轴承座上安装有安装在两个轴承座之间的铰刀刀具。首先组装整个切割器组件，然后将其放置在铰刀体的相应凹部中。切割器组件通过拉伸销固定在凹穴内，该拉销横向穿过铰孔体插入，从而与形成在切割器组件的轴承座中的相应的孔啮合。拉销通过可以容易地移除的卡环固定，使得拉销然后可以缩回以允许在磨损之后更换刀具组件。

4. 发明授权

US4571215A Vibration dampener apparatus 失效
标题翻译：减振器
公开(公告)号：US4571215A
公开(公告)日：1986-02-18
申请号：US502127
申请日：1983-06-08
申请人： Michael S. Hansen
发明人： Michael S. Hansen
IPC分类号： E21B3/02 , E21B17/07 , F16F3/087 , E21B7/22 , E21B17/02 , E21B17/18
CPC分类号： F16F3/0873 , E21B17/07 , Y10T464/50
摘要： A vibration dampener for use on top-drive rotary drills. The apparatus of the present invention comprises a generally cylindrical housing having a cylindrical side, a top, a bottom, and a central divider plate. The top of the housing has an externally threaded bore therethrough which may be connected to the rotary drive of the drill. A central, coaxial tube is slidably received within the housing. The downward end of this tube may be connected to the drill pipe, and the tube thus provides a conduit through which air may be forced.A generally circular compression plate is connected within the housing to the central tube so as to be adjacent and substantially parallel to the bottom of the housing. A resilient pad is positioned between the compression plate and the central divider plate such that an upward force on the central tube causes the compression plate to be lifted and the resilient pad to be compressed between the compression plate and the divider plate.A plurality of radial paddle members are connected within the housing to the central tube so as to lie just above the central divider plate. A resilient pad is positioned between each pair of paddles, and each pad is secured in some suitable manner so as to prevent rotational movement of the pad with respect to both the central divider plate and the top of the housing.
摘要翻译：用于顶驱式旋转钻头的减振器。本发明的装置包括具有圆柱形侧面，顶部，底部和中央分隔板的大致圆柱形的壳体。壳体的顶部具有穿过其中的外螺纹孔，其可以连接到钻头的旋转驱动器。中心的同轴管可滑动地容纳在壳体内。该管的下端可以连接到钻杆管，因此管由此提供一个导管，空气可以通过该导管被迫。大致圆形的压缩板在壳体内连接到中心管，以便与壳体的底部相邻并且基本平行。弹性垫定位在压缩板和中央分隔板之间，使得中心管上的向上的力导致压缩板被提升，并且弹性垫在压缩板和分隔板之间被压缩。多个径向桨构件在壳体内连接到中心管，以便恰好位于中央分隔板的正上方。弹性垫定位在每对桨之间，并且每个垫以某种合适的方式固定，以防止垫相对于中心分隔板和壳体顶部的旋转运动。

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