ULTRAFINE POLYESTER FIBER

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 w...

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Bibliographische Detailangaben
Hauptverfasser:	TOYODA, KEIICHI, TAKAHASHI, TETSUKO, KOJIMA, JUNICHI
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS BANDAGES, DRESSINGS OR ABSORBENT PADS CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS DISINFECTION, STERILISATION, OR DEODORISATION OF AIR FILTERS IMPLANTABLE INTO BLOOD VESSELS FIRST-AID KITS FOMENTATION HUMAN NECESSITIES HYGIENE MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES MEDICAL OR VETERINARY SCIENCE METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL NATURAL OR ARTIFICIAL THREADS OR FIBRES ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES PROSTHESES SPINNING TEXTILES TREATMENT OR PROTECTION OF EYES OR EARS
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Beschreibung
Zusammenfassung:	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 µm.