Abstract: A low-profile stent graft has a Type-III endoleak suppression effect, avoiding the problem with a stent graft which uses an extra-thin graft incurring enlarged needle holes or needle hole parts in a suture part. The stent graft has a proximate end, a distal end, and a lumen which is positioned between the proximate end and the distal end. The stent graft is formed by coupling a cylindrical graft to a stent with a suture. The cylindrical graft is formed from a fabric having a thickness of 10-90 ?m. The elastic modulus of the suture is 40 cN/dtex or less.

Abstract: The present invention relates to catheter systems and methods of treating a vascular disease using the same.

Abstract: Provided is a superfine polyester fiber containing at least 98 wt % of a polyethylene terephthalate component, and characterized by fulfilling the following conditions: (1) the reduced viscosity (?sp/c) is at least 0.80 dl/g; (2) the total fineness is 7-120 dtex, and the single filament fineness is no more than 0.5 dtex; and (3) the toughness parameter (X) indicated by formula (1) is at least 2.0, the tensile strength is at least 3.5 cN/dtex and the tensile elongation is at least 12%. X=(tensile strength×?tensile elongation)/(total fineness×single filament fineness)??formula (1).

Abstract: The present invention relates to catheter systems and methods of treating a vascular disease using the same.

Abstract: The purpose of the present invention is to provide a low-profile stent graft which has a Type-III endoleak suppression effect, avoiding the problem with a stent graft which uses an extra-thin graft incurring enlarged needle holes or needle hole parts in a suture part. A stent graft according to the present invention comprises a proximate end, a distal end, and a lumen which is positioned between the proximate end and the distal end. The stent graft is formed by coupling a cylindrical graft to a stent with a suture. The cylindrical graft is formed from a fabric having a thickness of 10-90 ?m. The elastic modulus of the suture is 40 cN/dtex or less.

Abstract: Provided is an ultrafine polyester fiber which is useful as a constituent material for a cloth for a stent graft or other medical device that is to be implanted in the body and which can simultaneously solve both a clinical need (diameter reduction) and a clinical challenge (integration of a stent with a stent graft). An ultrafine polyester fiber which has a polyethylene terephthalate content of 98 wt % or more, characterized by: having (1) a reduced viscosity (?sp/c) of 0.80 dl/g or higher and (2) a total fineness of 7 to 120 dtex and a single-fiber fineness of 0.5 dtex or less; and exhibiting (3) a maximum thermal shrinkage stress of 0.05 cN/dtex or more in a temperature range of 80 to 200° C. or (4) a degree of crystallinity of 35% or more in a region spreading from the surface of the fiber to a depth of 0.1 ?m.

Abstract: Provided is a superfine polyester fiber containing at least 98 wt % of a polyethylene terephthalate component, and characterized by fulfilling the following conditions: (1) the reduced viscosity (?sp/c) is at least 0.80 dl/g; (2) the total fineness is 7-120 dtex, and the single filament fineness is no more than 0.5 dtex; and (3) the toughness parameter (X) indicated by formula (1) is at least 2.0, the tensile strength is at least 3.5 cN/dtex and the tensile elongation is at least 12%. X=(tensile strength×?tensile elongation)/(total fineness×single filament fineness)??formula (1).

Abstract: A polyester resin composition containing, as a resin component, a polyester with its main component formed from a polytrimethylene terephthalate and having an intrinsic viscosity of 0.4 to 2, which satisfies the following conditions (1) to (3): (1) the polyester resin composition is composed of a polyester resin component comprising 90% by weight or more of a polytrimethylene terephthalate; (2) the polyester resin composition contains 0.01 to 3% by weight of titanium oxide having an average particle size from 0.01 to 2 &mgr;m; and (3) the polyester resin composition contains 25 or less/mg of the resin of agglomerates of titanium oxide particles which agglomerates have a lengthwise size exceeding 5 &mgr;m. A polytrimethylene terephthalate-based polyester fiber, having a low frictional coefficient, excellent in wear resistance, and showing a suitable luster and a delustered effect, can be stably spun and drawn by applying a melt spinning method to the polyester resin composition.

Abstract: The present invention provides poly(trimethylene terephthalate) copolymerized with ester-forming sulfonate and a fiber thereof. The polymer of the present invention is high in melting point, small in loss of melting viscosity and has a high molecular weight. The fiber of the present invention is high in toughness, excellent in whiteness and dyeable with a cationic dye, whereby it is useful for clothing, carpets or non-woven sheets, etc.

Abstract: The present invention provides poly(trimethylene terephthalate) copolymerized with ester-forming sulfonate and a fiber thereof. The polymer of the present invention is high in melting point, small in loss of melting viscosity and has a high molecular weight. The fiber of the present invention is high in toughness, excellent in whiteness and dyeable with a cationic dye, whereby it is useful for clothing, carpets or non-woven sheets, etc.

Abstract: A polyester resin composition is disclosed, comprising poly(trimethylene terephthalate) in a proportion of 90 wt % or more, wherein the resin composition has an intrinsic viscosity of from 0.4 to 2 and contains a phosphorus compound corresponding to from 10 to 250 ppm in terms of the amount of phosphorus element, a cyclic dimer in an amount of not exceeding 3 wt % and a bis(3-hydroxypropyl)ether in an amount of 2 wt % or less. This polyester resin composition has excellent spinning stability and high melt stability and is used for the production of a poly(trimethylene terephthalate)-based fiber having excellent whiteness and high tenacity.

Abstract: There are disclosed polyester fibers that are composed of at least 90% by weight of poly(trimethylene terephthalate) and have a limiting viscosity of 0.4-2, being characterized by containing a phosphorus compound at 10-250 ppm in terms of weight of elemental phosphorus, containing no more than 3 wt % of cyclic dimers, containing no more than 2 wt % of bis(3-hydroxypropyl) ether copolymerized with the poly(trimethylene terephthalate), and having a birefringence of 0.03 or greater. The polyester fibers are poly(trimethylene terephthalate)-based fibers with excellent whiteness and tenacity, which are obtained by melt spinning of poly(trimethylene terephthalate) resin composition with improved whiteness, melt stability and spinning stability.

Abstract: There are disclosed polyester fibers that are composed of at least 90% by weight of poly(trimethylene terephthalate) and have a limiting viscosity of 0.4-2, being characterized by containing a phosphorus compound at 10-250 ppm in terms of weight of elemental phosphorus, containing no more than 3 wt % of cyclic dimers, containing no more than 2 wt % of bis(3-hydroxypropyl) ether copolymerized with the poly(trimethylene terephthalate), and having a birefringence of 0.03 or greater.