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公开(公告)号：US4303530A
公开(公告)日：1981-12-01
申请号：US845649
申请日：1977-10-26
CPC分类号： A61M1/3627
摘要： A blood filter in which the pore size of the filtering media generally decreases through a series of at least three stages where the filtering capacity of at least the first stage is chosen so as to accommodate without substantial impairment of function the quantity of large particle size debris which is normally present in a predetermined amount of blood. The filtering media is composed of several plies of porous material including both depth and screen filter elements. These filter elements are arranged in one or more elongated bands. The bands are spirally wound into a cylindrical form around a generally rigid, perforate core. The ends of the spirally wound cylindrically configured filter are sealed to produce a filter cartridge. The filter cartridge is in turn sealed into a container which has blood inlet and outlet ports arranged so that blood normally flows radially inwardly through the filter.
摘要翻译： 一种血液过滤器，其中过滤介质的孔径通常通过一系列至少三个阶段降低，其中至少第一阶段的过滤能力被选择以便适应大小粒径碎片的量的实质性损伤 其通常以预定量的血液存在。 过滤介质由几层多孔材料组成，包括深度和筛网过滤元件。 这些过滤元件布置在一个或多个细长带中。 带子围绕一般刚性的穿孔芯螺旋缠绕成圆柱形。 螺旋卷绕的圆筒形过滤器的端部被密封以产生滤筒。 过滤器滤芯又被密封成具有血液入口和出口端口的容器，该容器布置成使得血液通常径向向内流过过滤器。
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公开(公告)号：US4366581A
公开(公告)日：1983-01-04
申请号：US298656
申请日：1981-09-02
申请人： Suresh T. Shah
发明人： Suresh T. Shah
CPC分类号： A61F2/2406 , A61F2/2409
摘要： An elliptical suturing cuff for a mitral prosthetic heart valve with a round planform. The suturing cuff is constructed from a single piece of seamless knit tubing. The radially enlarged portions of the cuff are positioned generally adjacent to the pivot and retaining structure on the valve base.
摘要翻译： 椭圆形缝合袖带二尖瓣假体心脏瓣膜与圆形平面。 缝合袖口由单件无缝针织管构成。 袖带的径向扩大部分大体上邻近枢轴和保持结构定位在阀座上。
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