COMPOSITE ORTHOPEDIC IMPLANT WITH MODULUS VARIATIONS

Novel composite orthopedic devices with modulus variations are disclosed. The device contains an extraosseous portion (11) attached to a first intraosseous portion (12) which is secured to a second intraosseous portion (14); the intraosseous portions (12, 14) may interface with the intrammedullary c...

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Bibliographische Detailangaben
1. Verfasser:	TRENTACOSTA, JOSEPH, DANIEL
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING BANDAGES, DRESSINGS OR ABSORBENT PADS 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 INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS MEDICAL OR VETERINARY SCIENCE ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES PERFORMING OPERATIONS PROSTHESES SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING TREATMENT OR PROTECTION OF EYES OR EARS WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	Novel composite orthopedic devices with modulus variations are disclosed. The device contains an extraosseous portion (11) attached to a first intraosseous portion (12) which is secured to a second intraosseous portion (14); the intraosseous portions (12, 14) may interface with the intrammedullary canal of the human femur. The modulus varies along the length of the device, decreasing from the extraosseous portion (11) to the second intraosseous portion (14). The variations in modulus are achieved by forming the device from a composite comprising filaments non-linearly disposed about the longitudinal axes of the device and within a polymer matrix. The method of making the present orthopedic device is also disclosed. Cette invention concerne de nouveaux dispositifs orthopédiques composites à module d'élasticité variable. Ce dispositif comprend une partie extra-osseuse (11) qui est fixée sur une première partie intra-osseuse (12) qui est elle-même fixée sur une deuxième partie intra-osseuse (14), lesdites parties intra-osseuses (12, 14) pouvant servir d'interface avec le canal intramédullaire du fémur humain. Le module varie sur la longueur du dispositif, en diminuant depuis la partie extra-osseuse (11) jusqu'à la deuxième partie intra-osseuse (14). On produit les variations du module en formant le dispositif à partir d'un composite comprenant des filaments disposés de manière non linéaire autour des axes longitudinaux du dispositif et dans une matrice polymère. Cette invention concerne également un procédé de fabrication dudit dispositif orthopédique.