A process for the manufacture of textile prostheses, for example vascular prostheses, and prostheses obtainable by this process

The prosthesis is manufactured by knitting a foundation yarn (1) and at least one effect yarn (2). The foundation yarn (1) has a high degree of heat-shrinkability while the effect yarn (2) is substantially heat stable. The structure thus obtained is then heated, for example by immersion in boiling w...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	BONA, GIOACHINO, CERIANI, LEONARDO
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BANDAGES, DRESSINGS OR ABSORBENT PADS BRAIDING DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS FILTERS IMPLANTABLE INTO BLOOD VESSELS FIRST-AID KITS FOMENTATION HUMAN NECESSITIES HYGIENE KNITTING LACE-MAKING MEDICAL OR VETERINARY SCIENCE NON-WOVEN FABRICS ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES PROSTHESES TEXTILES TREATMENT OR PROTECTION OF EYES OR EARS TRIMMINGS
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Beschreibung
Zusammenfassung:	The prosthesis is manufactured by knitting a foundation yarn (1) and at least one effect yarn (2). The foundation yarn (1) has a high degree of heat-shrinkability while the effect yarn (2) is substantially heat stable. The structure thus obtained is then heated, for example by immersion in boiling water, so as to shrink the foundation yarn (1) and thereby reduce its permeability to liquids. The shrinking does not significantly affect the effect yarn (2). It is therefore possible to obtain good velvet effects without resorting to very high overfeed rates for the effect yarn (2).