Patent classifications
A61L27/306
System for surface modification by laser diffusion
A system for forming surface modified substrates includes a laser system, and a laser processing chamber. A laser scanner automatically controls a position of the laser beam or an x-y translating stage upon which the laser processing chamber is mounted thereon for scanning the laser beam relative to a substrate of material (M) having a bulk portion and an outer surface integrated with the bulk portion, and a coating including metal organic molecules including at least one metal X or particles of metal X on the outer surface. At laser-heated spots atoms of X from the metal coating diffuse into the outer surface to form a modified surface layer including both M and X. The modified surface layer has a thickness of 1 nm, and a 25° C. electrical conductivity ≥2.5% above or ≤2.5% below a 25° C. electrical conductivity in the bulk portion.
MODULAR PROSTHESIS FOR AT LEAST PARTIAL REPLACEMENT OF A TUBULAR BONE ADJOINING A JOINT
Modular endoprosthesis for at least partial replacement of a tubular bone, comprising, as module components, a stem for insertion into a bone cavity of the tubular bone, and an end piece comprising a support body with a neck part arranged on the medial aspect thereof. Said module components being able to be coupled to each other and released from each other along a longitudinal axis of the shaft. The end piece has at least two different surface configurations on its support body, namely a closed surface (6′) on a medial aspect, and a porous configuration of the surface on the opposite, lateral aspect. The latter permits and positions the adhesion of muscle tissue, specifically without suturing. The muscle trauma caused by suturing, and the peak loads that occur at the respective suture points, can thus be avoided by virtue of the invention, by means of the location-specific direct adhesion of the muscle. It is thus possible to achieve quicker and reliable mobilization of the patient, and this with a reduced risk of complications.
COMPOSITION OF SUBSTANTIALLY SPHERICAL GRANULE FOR BONE REGENERATION
A composition for bone regeneration includes substantially spherical granules. Each of the spherical granules include an outer shell including magnesium phosphate and nano-sized silica and a bioactive core encapsulated by the outer shell. The granules include macro-pores and micro-pores. The macro-pores are intergranular spaces between adjacent granules, and the micro-pores are intragranular nanopores formed on the outer shell of each of the granules. A method of producing the substantially spherical granules, includes providing a mixture of a biological active powder, magnesium phosphate, and an initiator with a colloidal silica solution; rotating the mixture with dual asymmetric centrifugation for a predetermined amount of time; and drying the resulting material.
Method of manufacturing an implant and an implant with two coatings
The present invention relates to a medical implant for cartilage and/or bone repair at an articulating surface of a joint. The implant comprises a contoured implant body and at least one extending post. The implant body has an articulating surface configured to face the articulating part of the joint and a bone contact surface configured to face the bone structure of a joint, where the said articulating and bone contact surfaces face mutually opposite directions and said bone contact surface is provided with the extending post. A cartilage contact surface connects the articulating and the bone contact surfaces and is configured to contact the cartilage surrounding the implant body in a joint. The articulating surface has a layer that consists of titanium nitride (TiN) as the wear-resistant material. The cartilage contact surface has a coating that substantially consists of a material having chondrointegration properties.
ZIRCONIUM-COATED IMPLANT COMPONENT AND USE OF SAME
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.
Method for manufacturing support for regenerating core-shell structured hard tissue and support for regenerating core-shell structured hard tissue manufactured thereby
The present invention relates to a method for manufacturing a support for regenerating core-shell structured hard tissue and a support for regenerating core-shell structured hard tissue manufactured thereby, wherein the support may further comprise bio-functional materials, such as cells, in a core-shell structure. The method for manufacturing a support for regenerating core-shell structured hard tissue according to the present invention has an effect of manufacturing a support for regenerating core-shell structured hard tissue by a method by which a 3-dimensional structure is prepared by a layer manufacturing process through an extrusion container having a double nozzle. In addition, the support can be manufactured at room temperature, thereby having an effect of containing cells or various bio-functional materials. Furthermore, the support for regenerating core-shell structured hard tissue has a similar constitution to a bone component and thus has higher mechanical properties, and has an effect that the cells or various bio-functional materials are uniformly distributed throughout the entire 3-dimensional structure.
METALLIC ORTHOPAEDIC IMPLANT AND METHOD OF MAKING THE SAME
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.
IMPLANT, IMPLANT COMPONENT AND METHOD FOR THE PRODUCTION THEREOF
An implant and/or an implant component is made available, having a main body which, at least on a surface, contains or consists of an electrically conductive material, and having a layer of calcium hydroxide applied to the electrically conductive material of the main body. The implant or the implant component is characterized in that the layer of calcium hydroxide contains calcium phosphate, specifically in a percentage by weight that is less than the percentage by weight of calcium hydroxide in this layer. A method for making available the implant according to the invention or the implant component according to the invention is also proposed. The implant made available and the implant component made available are characterized in that they have a local and temporary antimicrobial action, prevent formation of antibiotic-resistant microorganisms, act on bone substance in a manner that promotes growth, and produce no adverse side effects in the body.
Coating for an implant
The present invention relates to an implant (10) comprising an implant body having a first surface area (A1, A2, A3, A4) configured for contact with soft connective tissue and a second surface area configured for contact with bone tissue, wherein the first surface area is covered with a coating comprising tantalum and the second surface area is formed by a material, which is different than the one forming the coating.
WHITE, BACTERIA-RESISTANT, BIOCOMPATIBLE, ADHERENT COATING FOR IMPLANTS, SCREWS AND PLATES INTEGRATED IN HARD AND SOFT TISSUE AND PRODUCTION METHOD
The invention relates to a white, bacteria-resistant, biocompatible, adherent coating for an element which can be integrated in hard and soft tissue, in particular an implant, a screw or a plate, having a structure made from metalliferous gradient layers having varying oxygen content, wherein the band gap of the outer-most gradient layer is greater than 3.1 eV, wherein the outer-most gradient layer is crystalline and wherein the gradient layers comprise tantalum and/or niobium and/or zirconium and/or titanium.