Mechanism for securing a shaft-hub connection of two shafts
    1.
    发明授权
    Mechanism for securing a shaft-hub connection of two shafts 有权
    用于固定两个轴的轴毂连接的机构

    公开(公告)号:US08206055B2

    公开(公告)日:2012-06-26

    申请号:US12084474

    申请日:2006-10-26

    IPC分类号: B25G3/28

    摘要: A coupling mechanism secures a shaft-to-collar connection for two shafts, such as an extension shaft stub and a tractor PTO shaft. An annular locking element on the first shaft prevents an axial disconnection of an established connection. One of the shafts has a collar with a positive engagement element for a locking engagement with the other shaft. The other shaft includes a positive engagement for a locking engagement with the collar. To enable an easier handling of the axial locking of the shaft to collar connection, the locking element includes a first set of teeth which are complementarily to a second set of teeth on the second shaft. The locking element is rotatably arranged on the first shaft and can be rotated from a locked position to an unlocked position. In the locked position the teeth overlap.

    摘要翻译: 联接机构固定两个轴的轴对环连接,例如延伸轴短柱和拖拉机PTO轴。 第一轴上的环形锁定元件防止已建立的连接件的轴向断开。 其中一个轴具有带有用于与另一轴锁定接合的正接合元件的轴环。 另一个轴包括用于与套环锁定接合的正接合。 为了更容易地处理轴到轴环连接的轴向锁定,锁定元件包括与第二轴上的第二组齿互补的第一组齿。 锁定元件可旋转地布置在第一轴上并且可以从锁定位置旋转到解锁位置。 在锁定位置,牙齿重叠。

    MECHANISM FOR SECURING A SHAFT-HUB CONNECTION OF TWO SHAFTS
    2.
    发明申请
    MECHANISM FOR SECURING A SHAFT-HUB CONNECTION OF TWO SHAFTS 有权
    用于保护两个SHAFT-HUB连接的机构

    公开(公告)号:US20100240464A1

    公开(公告)日:2010-09-23

    申请号:US12084474

    申请日:2006-10-26

    IPC分类号: F16D1/06

    摘要: The present invention relates to a device for securing a shaft to collar connection (16) of two shafts (12, 14), in particular for securing a PTO shaft stub (14) of a PTO shaft of a tractor. The device comprises a locking element (40) preventing a disconnection of an established shaft to collar connection (16) between the two shafts (12, 14) in axial direction. One of the two shafts (12) comprises a collar (15) with a positive engagement element (38) for a locking engagement with the other shaft (14). The other shaft (14) comprises a positive engagement (22) for a locking engagement with the shaft (12) comprising the collar (15). The locking element (40) is basically ring-shaped and arranged at the first of the two shafts (12). In order to enable an easier handling of the axial locking of the shaft to collar connection (16), it is suggested, that the locking element comprises a toothing (44), which is basically complementarily formed to the toothing (22) of the second of the two shafts (14). The locking element (40) is rotatably arranged on the first shaft (12) and can be rotated from a locked position to an unlocked position. In the locked position the toothing (22, 44) is arranged such that they overlap. In the unlocked position the toothing (22, 44) is arranged such that they do not overlap. The locking element (40) is arranged such that in the locked position of the locking element (40) an established shaft to collar connection (16) is secured by the engagement of the toothings (22, 44) of the two shafts (12, 14). Furthermore the present invention relates to a shaft (12) of the locking device.

    摘要翻译: 本发明涉及一种用于将轴固定到两个轴(12,14)的套环连接件(16)的装置,特别是用于固定拖拉机的PTO轴的PTO轴短柱(14)。 该装置包括锁定元件(40),用于防止已建立的轴在轴向方向上在两个轴(12,14)之间断开颈圈连接部(16)。 两个轴(12)中的一个包括具有用于与另一轴(14)锁定接合的正接合元件(38)的轴环(15)。 另一个轴(14)包括用于与包括轴环(15)的轴(12)的锁定接合的正接合(22)。 锁定元件(40)基本上是环形的并且布置在两个轴(12)的第一个处。 为了能够更容易地处理轴到轴环连接件(16)的轴向锁定,建议锁定元件包括齿部(44),该齿部(44)基本上互补地形成于第二齿圈(22)的齿部(22) 的两个轴(14)。 锁定元件(40)可旋转地布置在第一轴(12)上并且可以从锁定位置旋转到解锁位置。 在锁定位置,齿(22,44)被布置成使得它们重叠。 在解锁位置,齿(22,44)被布置成使得它们不重叠。 锁定元件(40)被布置成使得在锁定元件(40)的锁定位置,通过两个轴(12,12)的齿轮(22,44)的接合来固定已建立的轴与套环连接件(16) 14)。 此外,本发明涉及锁定装置的轴(12)。

    Imaging apparatus for generating an image of a region of interest
    5.
    发明授权
    Imaging apparatus for generating an image of a region of interest 有权
    用于产生感兴趣区域的图像的成像装置

    公开(公告)号:US08410448B2

    公开(公告)日:2013-04-02

    申请号:US12992285

    申请日:2009-05-15

    IPC分类号: G01T1/16

    摘要: The present invention relates to an imaging apparatus for generating an image of a region of interest. The imaging apparatus comprises a radiation source (2), a detection unit (6) for generating detection data and a moving unit (1, 7, 8) for moving the radiation source (2) and the region of interest relative to each other, while the detection data are generated. The imaging apparatus further comprises an identification unit (13) for identifying in the detection data high density detection data and non-high density detection data. A density weighting unit (14) density weights the detection data, wherein at least a part of the high density detection data has a smaller density weight than the non-high density detection data, and a reconstruction unit (15) reconstructs an image of the region of interest from the weighted detection data.

    摘要翻译: 本发明涉及一种用于产生感兴趣区域的图像的成像装置。 成像装置包括辐射源(2),用于产生检测数据的检测单元(6)和用于使辐射源(2)和感兴趣区域相对于彼此移动的移动单元(1,7,8) 同时生成检测数据。 该成像装置还包括用于在检测数据中识别高密度检测数据和非高密度检测数据的识别单元(13)。 密度加权单元(14)密度对检测数据进行加权,其中至少一部分高密度检测数据具有比非高密度检测数据更小的密度权重,并且重建单元(15)重建 来自加权检测数据的感兴趣区域。

    METHOD AND APPARATUS TO FILTER X-RAY BEAMS GENERATED USING A CT APPARATUS WITH DISPLACED GEOMETRY
    6.
    发明申请
    METHOD AND APPARATUS TO FILTER X-RAY BEAMS GENERATED USING A CT APPARATUS WITH DISPLACED GEOMETRY 有权
    使用具有位移几何的CT装置生成的X射线衍射的方法和装置

    公开(公告)号:US20110261923A1

    公开(公告)日:2011-10-27

    申请号:US13144167

    申请日:2009-12-09

    IPC分类号: A61B6/03

    摘要: A method and apparatus are provided to filter x-ray beams generated using a CT apparatus or other x-ray based system with displaced acquisition geometry. A CT apparatus may be used having a source (102), a detector (104) transversely displaced from a center (114) of a field of view (118) during acquisition of the projection data, and a filter (146). The filter may absorb at least a portion of overlapping radiation emitted by the source at opposing angular positions. The amount of transverse displacement may be determined for a desired field of view configuration and amount of overlapping radiation. The detector may be adjusted to correspond to the amount of determined transverse displacement. The size and location of the filter may be determined based on the amount of overlapping radiation. The filter may be adjusted to correspond to the determined size and location of the filter.

    摘要翻译: 提供了一种方法和装置,用于过滤使用CT装置产生的X射线束或其他基于X射线的取向几何形状的系统。 可以使用CT装置,其具有源(102),在获取投影数据期间从视场(118)的中心(114)横向移位的检测器(104)和过滤器(146)。 过滤器可以吸收源在相对的角位置处发射的重叠辐射的至少一部分。 可以针对期望的视场配置和重叠辐射量来确定横向位移的量。 检测器可以被调节以对应于确定的横向位移的量。 滤波器的尺寸和位置可以基于重叠辐射的量来确定。 滤波器可以被调节以对应于所确定的滤波器的尺寸和位置。

    IMAGING APPARATUS FOR GENERATING AN IMAGE OF A REGION OF INTEREST
    7.
    发明申请
    IMAGING APPARATUS FOR GENERATING AN IMAGE OF A REGION OF INTEREST 有权
    用于产生一个利益区域的图像的成像装置

    公开(公告)号:US20110095197A1

    公开(公告)日:2011-04-28

    申请号:US12992285

    申请日:2009-05-15

    IPC分类号: A61B6/00 G06K9/00

    摘要: The present invention relates to an imaging apparatus for generating an image of a region of interest. The imaging apparatus comprises a radiation source (2), a detection unit (6) for generating detection data and a moving unit (1, 7, 8) for moving the radiation source (2) and the region of interest relative to each other, while the detection data are generated. The imaging apparatus further comprises an identification unit (13) for identifying in the detection data high density detection data and non-high density detection data. A density weighting unit (14) density weights the detection data, wherein at least a part of the high density detection data has a smaller density weight than the non-high density detection data, and a reconstruction unit (15) reconstructs an image of the region of interest from the weighted detection data.

    摘要翻译: 本发明涉及一种用于产生感兴趣区域的图像的成像装置。 成像装置包括辐射源(2),用于产生检测数据的检测单元(6)和用于使辐射源(2)和感兴趣区域相对于彼此移动的移动单元(1,7,8) 同时生成检测数据。 该成像装置还包括用于在检测数据中识别高密度检测数据和非高密度检测数据的识别单元(13)。 密度加权单元(14)密度对检测数据进行加权,其中至少一部分高密度检测数据具有比非高密度检测数据更小的密度权重,并且重建单元(15)重建 来自加权检测数据的感兴趣区域。

    UNCERTAINTY MAPS FOR SEGMENTATION IN THE PRESENCE OF METAL ARTIFACTS
    8.
    发明申请
    UNCERTAINTY MAPS FOR SEGMENTATION IN THE PRESENCE OF METAL ARTIFACTS 有权
    不确定性在金属制品存在下分配

    公开(公告)号:US20110038516A1

    公开(公告)日:2011-02-17

    申请号:US12673779

    申请日:2008-08-12

    IPC分类号: G06K9/00

    摘要: When performing model-based segmentation on a 3D patient image (80), metal artifacts in the patient image (80), caused by metal in the patient's body, are detected, and a metal artifact reduction technique is performed to reduce the artifact(s) by interpolation projection data in the region of the artifact(s). The interpolated data is used to generate an uncertainty map for artifact-affected voxels in the image, and a mesh model (78) is conformed to the image to facilitate segmentation thereof. Internal and external energies applied to push and pull the model (78) are weighted as a function of the uncertainty associated with one or more voxels in the image (80). Iteratively, mathematical representations of the energies and respective weights are solved to describe an updated model shape that more closely aligns to the image (80).

    摘要翻译: 当在3D患者图像(80)上执行基于模型的分割时,检测由患者身体中的金属引起的患者图像(80)中的金属伪像,并且执行金属伪像减少技术以减少伪像 )通过伪像区域内的插值投影数据。 内插数据用于为图像中的假象影响的像素生成不确定性图,并且网格模型(78)符合图像以便于其分割。 作为与图像(80)中的一个或多个体素相关联的不确定度的函数,加权用于推动和拉动模型(78)的内部和外部能量。 迭代地,解决能量和相应权重的数学表示以描述与图像更接近地对准的更新的模型形状(80)。

    APPARATUS FOR DETERMINING A HIGH DENSITY REGION IN AN IMAGE
    9.
    发明申请
    APPARATUS FOR DETERMINING A HIGH DENSITY REGION IN AN IMAGE 审中-公开
    用于确定图像中高密度区域的装置

    公开(公告)号:US20100189331A1

    公开(公告)日:2010-07-29

    申请号:US12664662

    申请日:2008-06-11

    IPC分类号: G06K9/00

    CPC分类号: G06T11/005 A61B6/5258

    摘要: The invention relates to an apparatus for determining a high density region in an image, wherein the apparatus comprises a provision unit (1, 2, 6, 7, 8) for providing projection data for reconstructing the image. The apparatus comprises further a high density shadow determination unit (12) for determining a high density shadow in the projection data and a backprojection unit (13) for backprojecting the determined high density shadow resulting in a high density image showing the high density region. The inventions relates further to a corresponding method and computer program for determining a high density region in an image.

    摘要翻译: 本发明涉及一种用于确定图像中的高密度区域的装置,其中该装置包括用于提供用于重构图像的投影数据的提供单元(1,2,6,7,8)。 该装置还包括用于确定投影数据中的高密度阴影的高密度阴影确定单元(12)和用于反向投影确定的高密度阴影的反投影单元(13),导致显示高密度区域的高密度图像。 本发明进一步涉及用于确定图像中的高密度区域的相应方法和计算机程序。