Abstract:
The present invention relates to methods for making cross-linked oxidation-resistant polymeric materials and preventing or minimizing in vivo elution of antioxidant from the antioxidant-containing polymeric materials. The invention also provides methods of doping polymeric materials with a spatial control of cross-linking and antioxidant distribution, for example, vitamin E (±-Tocopherol), and methods for extraction/elution of antioxidants, for example, vitamin E (±-tocopherol), from surface regions of antioxidant-containing polymeric materials, and materials used therewith also are provided.
Abstract:
The present invention relates to methods for making cross-linked, oxidatively stable, and highly crystalline polymeric materials. The invention also provides methods of treating irradiation-cross-linked antioxidant-containing polymers and materials used therewith.
Abstract:
The present invention relates to methods for making oxidation resistant medical devices that comprise polymeric materials, for example, ultra-high molecular weight polyethylene (UHMWPE). The invention also provides methods of making antioxidant-doped medical implants, for example, doping of medical devices containing cross-linked UHMWPE with vitamin E by diffusion and materials used therein.
Abstract:
The invention provides fabricated PVA-hydrogels, PVA-hydrogel-containing compositions, and methods of making the same. The invention also provides methods of implanting or administering the PVA-hydrogels, or the PVA-hydrogel-containing compositions to treat a subject in need. Methods of cross-linking pre-solidified or pre-gelled hydrogel particles and making cross-linked PVA-hydrogels, and cross-linked PVA-hydrogel-containing compositions also are disclosed herein.
Abstract:
The present invention relates to methods for making highly crystalline polymeric material, for example, highly crystalline cross-linked and not cross-linked ultra-high molecular weight polyethylene (UHMWPE). The invention also provides methods of making additive-doped highly crystalline polymeric material using high pressure and high temperature crystallization processes, medical implants made thereof, and materials used therein.
Abstract:
The present invention relates to methods for making oxidation resistant homogenized polymeric materials and medical implants that comprise polymeric materials, for example, ultra-high molecular weight polyethylene (UHMWPE). The invention also provides methods of making antioxidant-doped medical implants, for example, doping of medical devices containing cross-linked UHMWPE with vitamin E by diffusion and annealing the anti-oxidant doped UHMWPE in a super critical fluid, and materials used therein.