专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

51. 发明申请

US20110261924A1 ROTATIONAL X RAY DEVICE FOR PHASE CONTRAST IMAGING 失效
标题翻译：旋转X射线装置，用于相位对比成像
公开(公告)号：US20110261924A1
公开(公告)日：2011-10-27
申请号：US12933143
申请日：2009-03-13
申请人： Joerg Bredno
发明人： Joerg Bredno
IPC分类号： A61B6/03
CPC分类号： A61B6/032 , A61B6/4007 , A61B6/4291 , A61B6/484 , G21K2207/005
摘要： The invention relates to a rotational X-ray device (100), for example a CT scanner, for generating phase contrast images of an object (1). In a particular embodiment of the device (100), a plurality of X-ray sources (11), an X-ray detector (30), and an analyzer grating (G2) are attached to a rotatable gantry (20), while a ring-shaped phase grating (G1 is stationary. The X-ray sources are disposed such that X-rays first pass an object under study before traversing the phase grating (G1) and subsequently the analyzer grating (G2). This is achieved by either shifting the X-ray sources axially with respect to the ring-shaped phase grating (G1) or by disposing the X-ray sources in the interior of the ring. Moreover, the phase grating (G1) and the analyzer (G2) shall have spatially varying relative phase (and/or periodicity), for example realized by line grids that are tilted with respect to each other. During the rotation of the gantry (20), the synchronized activation of X-ray sources (11) allows to generate projection images of an object (1) from the same viewing angle with different relative positions (and therefore phases) between the phase grating (G1) and the analyzer (G2).
摘要翻译：本发明涉及用于产生物体（1）的相位对比图像的旋转X射线装置（100），例如CT扫描器。在设备（100）的特定实施例中，多个X射线源（11），X射线检测器（30）和分析器光栅（G2）附接到可旋转机架（20），而环形相位光栅（G1是静止的），X射线源被设置为使得X射线首先在研究之前通过相关光栅（G1）和随后的分析器光栅（G2）之间的研究对象，这通过将X射线源相对于环状相位光栅（G1）轴向移动，或者将X射线源设置在环的内部，此外，相位光栅（G1）和分析仪（G2）应具有空间变化的相对相位（和/或周期性），例如通过相对于彼此倾斜的线栅格实现的。在台架（20）的旋转期间，X射线源（11）的同步激活允许产生对象（1）的投影图像从具有不同相对位置（因此相位）的相同视角在相位光栅（G1）和分析器（G2）之间。

52. 发明申请

US20080199048A1 Image Processing System and Method for Alignment of Images 审中-公开
标题翻译：图像处理系统和图像对齐方法
公开(公告)号：US20080199048A1
公开(公告)日：2008-08-21
申请号：US11814011
申请日：2006-01-17
申请人： Kai Eck , Joerg Bredno , Thomas Heiko Stehle
发明人： Kai Eck , Joerg Bredno , Thomas Heiko Stehle
IPC分类号： G06K9/00
CPC分类号： G06T7/38 , G06T2207/30101
摘要： A medical imaging system in which a current (X-ray) image (8) of a body volume is selected for association with one of several stored images (1Oa5IOb), the ECG and the respiratory cycle being determined each time together with the images. First and second static images (R1,R2) of the body volume in first and second extreme respiratory states are provided, and first and second respective similarity values (r1,r2) are determined for each current and previous image so as to calculate the respiratory phase of the body volume therein. Using this data, one of the previous images (10a) is chosen which is closest to the current image (8) in respect of cardiac rhythm and cycle.
摘要翻译：一种医疗成像系统，其中选择身体体积的当前（X射线）图像（8）以与几个存储的图像（100A）中的一个相关联，每次每次确定ECG和呼吸循环，以及图像。提供第一和第二极端呼吸状态下的体积的第一和第二静态图像（R 1，R 2），并且为每个当前和先前图像确定第一和第二各自的相似度值（r 1，r 2），以便以计算其体积的呼吸相位。使用该数据，选择先前的图像（10a）之一，其相对于心律和周期最接近当前图像（8）。

53. 发明申请

US20080172049A1 System and Method For Electrophysiology Regaining Support to Continue Line and Ring Ablations 审中-公开
标题翻译：电生理系统和方法重新获得支持继续线环戒断
公开(公告)号：US20080172049A1
公开(公告)日：2008-07-17
申请号：US12064369
申请日：2006-08-09
申请人： Joerg Bredno , Kai Eck
发明人： Joerg Bredno , Kai Eck
IPC分类号： A61B18/08
CPC分类号： A61B18/1492 , A61B34/20 , A61B2018/00351 , A61B2018/00839 , A61B2034/2051 , A61B2090/376
摘要： An apparatus and method for ablating tissue in a heart (24) of a subject (25) during an ablation procedure is disclosed. The method includes contacting an ablation catheter tip (48) to tissue of the heart (24) at a plurality of sites designated for ablation; sensing at each respective site a feedback signal from the ablation catheter indicative of success of the intended local ablation; storing any available data defining a current position of the ablation catheter tip (48) relative to the heart (24) at a moment of sensing the feedback signal indicative of a failed intended ablation for later re-visit; displaying a map (60) of a region of interest of the heart (24); and designating, on the map display (60), indications of the sites corresponding to when the required electrical current is above the threshold current value indicative of a gap in an ablation line or ring.
摘要翻译：公开了一种用于在消融过程中消融受试者（25）的心脏（24）中的组织的装置和方法。所述方法包括：消融导管尖端（48）在指定用于消融的多个部位处接触心脏组织（24）; 在每个相应位置感测来自消融导管的反馈信号，指示预期局部消融的成功; 在感测到指示失败的预期消融的反馈信号的时刻存储任何可用的数据，所述可用数据定义所述消融导管尖端（48）当前位置相对于所述心脏（24）的时间，用于稍后重新访问; 显示心脏（24）的感兴趣区域的地图（60）; 以及在所述地图显示器（60）上指定对应于当所述电流高于指示消融线或环中的间隙的阈值电流值时的位置的指示。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式