Process for producing a polyamide suture

The present invention provides a new polyamide suture and a process for manufacturing this suture. The suture is made by melt extruding, quenching and drawing a polyamide filament. The polyamide filament is then wound on racks and annealed at a temperature of from about 120 DEG C to about 185 DEG C...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SURYADEVARA, JOGENDRA, NOZAD, IRANDOKHT IRENE
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, ORYARNS DISINFECTION, STERILISATION, OR DEODORISATION OF AIR HUMAN NECESSITIES HYGIENE MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES MECHANICAL FINISHING OF YARNS OR ROPES MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS MEDICAL OR VETERINARY SCIENCE METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING TEXTILES WARPING OR BEAMING YARNS YARNS OR THREADS
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Beschreibung
Zusammenfassung:	The present invention provides a new polyamide suture and a process for manufacturing this suture. The suture is made by melt extruding, quenching and drawing a polyamide filament. The polyamide filament is then wound on racks and annealed at a temperature of from about 120 DEG C to about 185 DEG C for at least 30 minutes. The sutures produced by this process have improved knot strength, tensile strength and stability.