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    • 1. 发明申请
    • Multilayer-coated stent for controlled drug release and manufacturing method thereof
    • 用于受控药物释放的多层涂层支架及其制造方法
    • US20060161242A1
    • 2006-07-20
    • US11210807
    • 2005-08-25
    • Kyung LeeSeung ParkCheol Lee
    • Kyung LeeSeung ParkCheol Lee
    • A61F2/82B05D1/02
    • A61L31/16A61L31/10A61L2300/61A61L2420/08C08L29/04C08L53/02
    • The present invention provides a multilayer-coated stent for controlled drug release, comprising: a first base layer formed on a stent support and made of poly(ethylene-co-vinylacetate) or polystyrene-ethylene-butylene rubber polymer; a second coating layer formed on the first base layer and made of a biocompatible or a bioabsorbable polymer and a drug component; and a third coating layer formed on the second coating layer and made of a biocompatible or a bioabsorbable polymer and a drug component different from the drug component of the second coating layer. The inventive stent can deliver a broad range of therapeutic substances for a long time and prevent the early rapid release of the drug components in blood. Also, unlike the existing drug-coated stents, the inventive stent includes two kinds of drugs complementary to each other, but can optimize the efficacy of the drugs by differentiating the control of drug release according to time.
    • 本发明提供一种用于受控药物释放的多层涂层支架,包括:形成在支架上并由聚(乙烯 - 共 - 乙酸乙烯酯)或聚苯乙烯 - 乙烯 - 丁烯橡胶聚合物制成的第一基层; 形成在第一基底层上并由生物相容或生物可吸收的聚合物和药物成分制成的第二涂层; 以及形成在第二涂层上并由生物相容性或生物可吸收聚合物和不同于第二涂层的药物成分的药物成分制成的第三涂层。 本发明的支架可以长时间传递广泛的治疗物质,并且防止血液中药物成分的早期快速释放。 此外,与现有的药物涂层支架不同,本发明的支架包括彼此互补的两种药物,但可以通过根据时间区分药物释放的控制来优化药物的功效。
    • 10. 发明申请
    • Method and apparatus for encoding and decoding video signal for preventing decoding error propagation
    • 用于编码和解码视频信号以防止解码错误传播的方法和装置
    • US20060120457A1
    • 2006-06-08
    • US11293131
    • 2005-12-05
    • Seung ParkJi ParkByeong Jeon
    • Seung ParkJi ParkByeong Jeon
    • H04N11/02H04N11/04H04N7/12H04B1/66
    • H04N19/615H04N19/13H04N19/61H04N19/63H04N19/89
    • A method and apparatus for encoding and decoding a video signal according to a Motion Compensated Temporal Filtering (MCTF) scheme is provided. A video frame sequence divided into video intervals is encoded over a plurality of levels of a temporal decomposition procedure of MCTF. A reference block of an image block included in an initial one of the frames of each decomposition level belonging to a current video interval is searched for in both an L frame obtained at the last level of a temporal decomposition procedure of a video interval immediately prior to the current video interval and a frame included in the current video interval, and an image difference between the image block and the reference block is coded into the image block. This prevents a decoding error of the initial frame at each temporal composition level caused by an increase in the number of temporal composition levels over video intervals.
    • 提供了一种根据运动补偿时间滤波(MCTF)方案对视频信号进行编码和解码的方法和装置。 分割成视频间隔的视频帧序列通过MCTF的时间分解过程的多个级别进行编码。 在紧接在视频间隔之前的视频间隔的时间分解过程的最后一级获得的L帧中搜索包含在属于当前视频间隔的每个分解级的初始帧之一中的图像块的参考块 当前视频间隔和包括在当前视频间隔中的帧以及图像块和参考块之间的图像差被编码到图像块中。 这防止了由于视频间隔上的时间组成级数的增加而导致的每个时间组成级别处的初始帧的解码错误。