BEARING MATERIAL OF MEDICAL IMPLANT AND METHOD FOR MAKING IT

• Main Authors: ERNSBERGER CRAIG, KING RICHARD S
• Format: Patent
• Language: English
• Published: 22.05.2008
• Subjects: BANDAGES, DRESSINGS OR ABSORBENT PADS; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; 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; METALLURGY; METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL; ORGANIC MACROMOLECULAR COMPOUNDS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; PROSTHESES; THEIR PREPARATION OR CHEMICAL WORKING-UP; TREATMENT OR PROTECTION OF EYES OR EARS

PROBLEM TO BE SOLVED: To provide a bearing material of a medical implant, which is an ultrahigh molecular weight polyethylene (UHMWPE) composite. SOLUTION: The composite comprises, for example, UHMWPE and a polyethylene copolymer having a polymer backbone and pendant hydrophilic groups or pendant surface active agents that are attached to the polymer backbone. Also disclosed are methods for preparing bearing materials. The bearing material has one or more advantageous properties including reduced immune response, reduced wear, and/or increased lubrication. COPYRIGHT: (C)2008,JPO&INPIT