Vascular prostheses
AssigneesTerumo Kabushiki Kaisha, Seiren Co., Ltd.
InventorsSobei Wakabayashi, Tomoko Hashimukai, Takeo Katakura
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Abstract
A vascular prosthesis is disclosed which excels in expansibility and allows satisfactory attachment thereto of cells and tissues. This vascular prosthesis is obtained by air-jet entangling a mass of yarns containing in at least a part thereof an elastic bulked yarn in order to get an entangled yarn furnished with fine crimps formed in fiber thereof, and fabricating a tubular fabric of the entangled fiber by one treatment selected from among weaving, knitting, and braiding treatments.
Claims1
A vascular prosthesis comprising a tubular fabric adapted for direct contact with blood and the passage of blood therethrough, said fabric comprising yarn entangled prior to being formed into said fabric,
- wherein said entangled yarn is obtained by entangling an elastic yarn with one of another elastic yarn and a nonelastic yarn, wherein the elongation ratio of said vascular prosthesis is in the range of from 2 to 15% in the radial direction and 2 to 20% in the axial direction under the load of an inner pressure of 150 mmHg, and wherein said tubular fabric is fabricated by a process selected from the group consisting of weaving, knitting and combinations thereof.
Dependencies are inferred from the claim text.