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    • 2. 发明申请
    • ARTIFICIAL VALVE PROSTHESIS WITH IMPROVED FLOW DYNAMICS
    • 人工阀门改进流动动力学
    • WO2004096100A1
    • 2004-11-11
    • PCT/US2004/012430
    • 2004-04-21
    • COOK INCORPORATEDCASE, Brian, C.FLAGLE, Jacob, A.GARRISON, Michael, L.HOFFA, Andrew, K.SCHAEFFER, Darin, G.
    • CASE, Brian, C.FLAGLE, Jacob, A.GARRISON, Michael, L.HOFFA, Andrew, K.SCHAEFFER, Darin, G.
    • A61F2/24
    • A61F2/2418A61F2/2475A61F2002/068A61F2220/0008A61F2220/0016A61F2230/0054A61F2230/0076A61F2230/0078A61F2230/008A61F2250/0037A61F2250/0039
    • An expandable venous valve having a support structure (11) that configured to enlarge the area adjacent to the valve structure (12) such that the flow patterns of retrograde flow are modified in a way that facilitates the flushing of the pockets at the base of the valve area to prevent stagnation of bodily fluid, which in the venous system, can lead to thrombus formation. The enlarged pocket areas can be created by forming an artificial sinus (34) adjacent the valve structure in an unsupported section of vessel wall between two support frame section or the support frame can comprise an expanded-diameter intermediate or proximal section that forms an artificial sinus adjacent the valve structure. In another group of embodiments, the attachment pathway between opposing leaflets and the support frame and/or vessel wall comprises a proximal portion that places the leaflets in extended contact with one another and a distal portion forms a large angle with respect to the adjacent walls such that a large pocket is created at the base of the leaflets. In one embodiment, the attachment pathway extends distally along a pair of substantially parallel longitudinal attachment struts to create an extended leaflet contact area, then angles circumferentially and distally from the former along distal attachment struts to define the bottom edge of the leaflets.
    • 一种具有支撑结构(11)的可膨胀静脉瓣,所述支撑结构(11)构造成扩大邻近所述瓣膜结构(12)的区域,使得逆行流的流动模式被改变为有利于在 阀门区域,以防止静脉系统中的体液停滞,可导致血栓形成。 可以通过在两个支撑框架部分之间的血管壁的无支撑部分中形成邻近阀结构的人造窦(34)来产生扩大的口袋区域,或者支撑框架可以包括形成人造窦的扩张直径的中间或近端部分 邻近阀门结构。 在另一组实施例中,相对的小叶和支撑框架和/或血管壁之间的附接通路包括近端部分,其将小叶彼此延伸接触,并且远端部分相对于相邻壁形成大角度, 在传单的底部创造了一个大口袋。 在一个实施例中,附接通道沿着一对基本上平行的纵向连接支柱向远侧延伸以产生延伸的小叶接触区域,然后沿着远侧连接支柱周向地和远端地从前者角度定位以限定传单的底部边缘。
    • 7. 发明申请
    • PROSTHETIC VALVE DEVICES AND METHODS OF MAKING SUCH DEVICES
    • 前置阀装置和制造这种装置的方法
    • WO2005011534A1
    • 2005-02-10
    • PCT/US2004/024730
    • 2004-07-30
    • COOK INCORPORATEDCASE, Brian, C.FLAGLE, Jacob, A.
    • CASE, Brian, C.FLAGLE, Jacob, A.
    • A61F2/24
    • A61F2/2412A61F2/2415A61F2/2418A61F2/2475A61F2220/0075
    • Prosthetic valve devices for implantation in body vessels, and methods of making same, are provided. The device has a main body (11) with first (12) and second (13) ends and defining a lumen (14), with the second end being inverted into the lumen. A valve is disposed at the second end (15). In multiple valve devices, valves are disposed at the first and second ends, and individually may be inverted into the lumen. The prosthetic valve devices may further include a support structure such as a stent (40). Methods of making a prosthetic valve device include providing a main body having first and second ends and defining a lumen, forming a valve at the second end, and inverting the second end into the lumen. Methods may further comprise forming multiple valves and may also include attaching a support structure.
    • 提供用于植入体内血管的假体瓣膜装置及其制造方法。 该装置具有主体(11),其具有第一端(12)和第二端(13)端部并且限定内腔(14),其中第二端被倒置成内腔。 阀设置在第二端(15)处。 在多个阀装置中,阀设置在第一和第二端处,并且可以单独地倒置到内腔中。 假体瓣膜装置还可以包括诸如支架(40)的支撑结构。 制造假体瓣膜装置的方法包括提供具有第一端和第二端并限定内腔的主体,在第二端形成阀,并将第二端翻转成内腔。 方法还可以包括形成多个阀并且还可以包括附接支撑结构。