KNITTED SMOOTH OR WRAPPED VESSEL PROSTHESE IN WARP WEAVE

摘要

The warp-knitted vessel prosthesis is in the shape of a straight or branched tube having a smooth or snarly surface on one or/and both sides. The prosthesis is made of synthetic, e.g. polyester, fibres. In terms of construction, the vessel prosthesis consists of two pairs of the independent elongate knitted sections (1) of rectangular shape which are formed on the one hand from the basic system of smooth and/or textured yarns having a comparatively high shrinkage effect and on the other from the bulk system of smooth and/or textured yarns having a lower shrinkage effect, the yarns of the basic system being in a tricot weave and the yarns of the bulk system being in a plain weave. The two indicated pairs of elongate knitted sections (1) which are shown in Fig. 2 in such a way that two knitted sections (1) lie side by side and underneath these knitted sections (1) is attached the second pair of the elongate knitted sections (1), are interlaced the sections in such a way as to form a vessel prosthesis which has two branches. The two pairs of elongate knitted sections (1) are joined together by means of mutually crossed stitch foot bindings (2) formed from three connection systems of smooth and/or textured yarns, the connection also utilising according to Fig. 2 in the section of the two prosthesis branches two edge wales of each elongated knitted section (1) and in the section of the full prosthesis diameter the three edge wales of each elongated knitted section (1). The connecting yarn systems advantageously contain at least some yarns of the basic and/or bulk yarn system.