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    • 118. 发明授权
    • Double lumen catheter
    • 双腔导管
    • US06409700B1
    • 2002-06-25
    • US09273571
    • 1999-03-22
    • John M. Siegel, Jr.Vinod B. MakhijaniMing LeiJagannath Raghavan
    • John M. Siegel, Jr.Vinod B. MakhijaniMing LeiJagannath Raghavan
    • A61M300
    • A61M1/3653A61M1/3658A61M1/3659A61M1/3661A61M25/0021A61M25/003A61M2025/0031A61M2025/0037A61M2025/0073
    • Blood is withdrawn from a vein by a double lumen catheter that has an elongated tube with unitary outer walls. A longitudinal planar septum divides the interior of the tube into an inlet lumen and a longer return lumen. The inlet lumen extends from a proximal end of the tube to an end terminating in a distally forward facing aperture. The return lumen extends contiguously with the inlet lumen from the proximal end of the tube to an end terminating in a distally forward facing aperture spaced in the longitudinal direction distally forward of the inlet lumen aperture. A diverting structure extends from an outer wall of the return lumen distally forward of the aperture of the inlet lumen. The diverting structure diverts flow of treated fluid discharged from the return lumen away from the distally forward facing aperture of the inlet lumen. The blood withdrawn via the catheter is circulated for treatment in a blood purification system.
    • 血液通过具有整体外壁的细长管的双腔导管从静脉中取出。 纵向平面隔膜将管的内部分成入口腔和更长的回流腔。 入口腔从管的近端延伸到终止于向前的朝前的孔的端部。 返回内腔与入口腔从管的近端连续延伸到终端于远端前进对面的端部的端部,其沿纵向方向向前远离入口腔孔的前方延伸。 转向结构从返回腔的外壁延伸到入口腔的孔的远侧前方。 转向结构将从返回腔排出的经处理流体的流动远离入口腔的远端向前的孔。 通过导管取出的血液循环用于血液净化系统中的治疗。
    • 119. 发明授权
    • Method and apparatus for decoding two-dimensional symbols in the spatial
domain
    • 用于解码空间域中的二维符号的方法和装置
    • US6094509A
    • 2000-07-25
    • US909574
    • 1997-08-12
    • Joe ZhengMing Lei
    • Joe ZhengMing Lei
    • G06K19/06G06K7/00G06K7/10G06K7/14G06K9/68
    • G06K7/1093G06K7/14G06K7/1417G06K7/1456Y10S379/91
    • A method and system for decoding a two-dimensional optical symbol in the spatial domain. The system determines the orientation of an imaged symbol in the spatial domain by using a template to derive a correlation coefficient between radially adjacent signals at a given angle of the template and comparing the correlation coefficients as the template is rotated with respect to the image. The angle of the highest correlation coefficient corresponds to the orientation of a set of symbol axes which include contiguous elements whose centers are collinear. The system then locates each individual information-encoded element of the symbol by using segments of the symbol defined by the axes, first adjusting for each segment the axis position and element size for subsequent determination of the location of all elements for decoding. The system is disclosed as applied to a symbol constructed as a matrix of hexagonal information-encoding elements arranged in a square, with, at its center, an acquisition target consisting of six concentric rings of alternating light and dark reflectivity.
    • 一种用于对空间域中的二维光学符号进行解码的方法和系统。 系统通过使用模板来确定成像符号在空间域中的取向,以在模板的给定角度处导出径向相邻信号之间的相关系数,并且在相对于图像旋转模板时比较相关系数。 最高相关系数的角度对应于一组符号轴的取向,其包括中心为共线的连续元件。 然后,系统通过使用由轴定义的符号的段来定位符号的每个单独的信息编码元素,首先针对每个段调整轴位置和单元大小,以便随后确定用于解码的所有元素的位置。 公开了将该系统应用于被构造为六边形信息编码元件矩阵的符号,该矩阵布置成正方形,其中心处有由六个交替的光和暗反射率的同心环组成的采集目标。