The present disclosure relates to an implant component (10, 20) having at least one connecting portion (30, 60), the connecting portion being at least partly coated with a Zr coating and the coating having a thickness of 1-20 μm, preferably 1-6 μm. The present disclosure further relates to a modular endoprosthesis comprising an implant component, to the use of a Zr coating to prevent crevice corrosion and/or fretting corrosion, and to the use of an implant component in patients suffering from a metal allergy.

An orthopaedic implant includes a femoral component having a metallic zirconium and niobium coating disposed therein. A method of making the femoral component using direct energy deposition or co-molding is also disclosed.

A composition and medical implant made therefrom, the composition including a thick diffusion hardened zone, and preferably further including a ceramic layer. Also provided are orthopedic implants made from the composition, methods of making the composition, and methods of making orthopedic implants from the composition.

Endosseous implant to be applied to a human or animal bone, wherein the surface of the implant is made from titanium or a titanium alloy, said implant having a smooth or rough surface texture, which is characterized in that said surface has been treated with at least one selected organic phosphonate compound or a pharmaceutically acceptable salt or ester or an amide thereof; process for producing said implants.

A composition and medical implant made therefrom, the composition including a thick diffusion hardened zone, and preferably further including a ceramic layer. Also provided are orthopedic implants made from the composition, methods of making the composition, and methods of making orthopedic implants from the composition.

The present disclosure discloses the hip prosthesis containing zirconium-niobium alloy on oxidation layer and a preparation method thereof, the hip prosthesis comprises a femoral stem, a femoral head, liners and a shell; the shell and femoral stem are prepared by using zirconium-niobium alloy powder as a raw material, and performing Sinter-HIP, cryogenic cooling and surface oxidation; the prepared shell and femoral stem are provided with partitioned trabeculae and formed by 3D printing. The problem of traditional manufacturing methods cannot process complex structures and failure of connection between sleeve and femoral handle is solved by 3D printing technology. Meanwhile, the preparation method can improve the bonding strength between trabecular bone and solid, and improve the service life of prosthesis.

A bone implant includes a body having a porous structure and having a size and shape configured for fitting to a bone, preferably in a bone defect. The porous structure is comprised of regularly arranged elementary cells whose interior spaces form interconnected pores, the elementary cells are formed by basic elements arranged in layers, wherein the basic elements are shaped like tetrapods, the tetrapods in each layer being arranged in parallel orientation and being positioned in-layer rotated with respect to tetrapods of an adjacent layer. The layers with rotated and non-rotated tetrapods are alternatingly arranged. Thereby a porous structure can be achieved which features improved mechanical characteristics, leading to improved biocompatibility.

An orthopaedic knee implant includes a femoral component having a substrate and a coating disposed on the surface of the substrate. A method for making a femoral component of an orthopaedic knee implant is also disclosed.

A process for producing an antibacterial coating composition for implants. The process includes the steps i) reaction of a monomer A which is based on (meth)acrylic acid and contains at least one epoxide with a polyguanidine by reaction of an amino group of the polyguanidine with the epoxide to give a (meth)acrylic acid-polyguanidine macromolecule and ii) polymerization of the (meth)acrylic acid-polyguanidine macromolecule with a monomer B which contains at least one polymerizable double bond and at least one phosphonate group by free-radical polymerization of the (meth)acrylic acid unit and the double bond.

A composition and medical implant made therefrom, the composition including a thick diffusion hardened zone, and preferably further including a ceramic layer. Also provided are orthopedic implants made from the composition, methods of making the composition, and methods of making orthopedic implants from the composition.