Woven tubing for stent type blood vascular prosthesis and stent type blood vascular prosthesis using the tubing
AssigneesTerumo Kabushiki Kaisha, Seiren Co., Ltd.
InventorsYoshikazu Takahashi, Teruhisa Yamazaki, Sobei Wakabayashi
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Abstract
A woven tubing for use in a stent type blood vascular prosthesis, using a monofilament having a flattening in the range of 1.2-5.0 and a size in the range of 11-250 dtex in at least part of the warp and a stent type blood vascular prosthesis using the tubing are disclosed. The prosthesis combines a shape retaining property that is capable of maintaining its tubular shape without being crushed by the flow of blood with a high liquid tightness that is capable of reducing the leakage of blood to the exterior and allows prevention of the inflow of blood into the lesion.
Claims12
A woven tubing for use in a stent blood vascular prosthesis comprising:
- a monofilament having a cross-sectional shape selected from a group consisting of elliptic, rectangle, flat and W-shaped shapes and a size in the range of 11-250 dtex for at least part of warp;
- a weft;
- wherein the warp and weft are woven;
- and
- the cross-sectional shape of the monofilament when woven with the weft reduces leakage of blood to outside the woven tubing by reducing gaps between the warp and the weft.
Dependencies are inferred from the claim text.