Patent classifications
A61L27/306
Methods and compositions for medical implants having anti-bacterial coatings
In one aspect, the disclosure relates to protective, anti-bacterial coatings for medical implants and methods of making the same. Also disclosed herein are methods for improving the anti-bacterial properties of a medical device coated with silicon carbide (SiC) or titanium nitride (TiN). Further disclosed herein are medical devices including an anti-microbial layer prepared by the disclosed methods. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.
COATING FOR AN IMPLANT
The present invention relates to an implant comprising an implant body having a first surface area 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.
Dental product with enhanced toughness
The present invention provides a dental product comprising a base material formed of a zirconia sintered body, and having high aesthetic quality with enhanced fracture toughness and with reduced chipping and cracking in the porcelain layer. The present invention also provides a method for manufacturing such a dental product. The present invention relates to a dental product comprising: a base material formed of a zirconia sintered body, and a porcelain layer, wherein the porcelain of the porcelain layer has a suitable firing temperature of 900° C. or more, and the porcelain layer has a fracture toughness value of 1.20 MPa.Math.m.sup.0.5 or more.
Bone Implant with Porous Membrane and Method for Preparation Thereof
The present invention relates to a bone implant with a porous lithium tantalate membrane and a method for preparing the bone implant. The bone implant comprises: (1) a substrate; and (2) a porous membrane on the substrate, wherein the substrate is selected from the group consisting of a tantalum substrate, a niobium substrate, a tantalum-niobium alloy substrate and a titanium substrate, and wherein the porous membrane is selected from the group consisting of a porous lithium tantalate membrane, a porous lithium niobate membrane, a porous lithium tantalate-lithium niobate mixture membrane and a porous titanium oxide membrane. The bone implant of the present invention has one or more of the following beneficial effects: (1) The bone implant has excellent corrosion resistance; (2) the elasticity modulus of the bone implant can be adjusted according to process conditions so that it has higher biocompatibility with the elasticity modulus of a human or animal bone (such as an alveolar bone and a cranium); (3) the white color of the bone implant is close to the color of the bone itself and the bone implant has an aesthetic appearance; (4) the bone implant has excellent bacteriostatic properties.
Method for Manufacturing Colored Product and Mobile Phone shell
The present invention relates to a method for manufacturing a colored product, in particular a colored mobile phone shell, comprising the following steps: (1) providing a product substrate, preferably a shell substrate; and (2) surface-treating the product substrate, preferably shell substrate, by an anodic oxidation method and/or a molten salt electrochemical method, wherein the product substrate, preferably shell substrate, is made of materials selected from the group consisting of tantalum, niobium, a tantalum-niobium alloy, titanium and a titanium alloy. The present invention further relates to a colored product, in particular a colored mobile phone shell, manufactured by the above method, comprising: (1) a product substrate, preferably a shell substrate; and (2) an amorphous metal oxide layer and/or lithium-containing compound layer formed on the surface of the product substrate, preferably shell substrate, wherein the product substrate, preferably shell substrate, is made of materials selected from tantalum, niobium, a tantalum-niobium alloy, titanium and a titanium alloy.
SYNERGISTIC ANTIBACTERIAL ACTIVITY OF MEDIUM POLARITY OILS IN COMBINATION WITH ANTIBACTERIAL AGENTS ON BACTERIAL BIOFILMS
The compositions of the present invention comprise at least one medium polarity oil and at least one antibacterial agent, the combination of which produces a synergistic antibacterial effect against bacterial biofilms. Methods are disclosed for the reduction of bacteria in and/or elimination of bacterial biofilms on biological and non-biological surfaces, as well as methods for the treatment of wounds, skin lesions, mucous membrane lesions, and other biological surfaces infected or contaminated with bacterial biofilms.
OXIDE LAYER-CONTAINING ZIRCONIUM-NIOBIUM ALLOY TIBIAL PLATEAU PROSTHESIS HAVING BONE TRABECULA AND PREPARATION METHOD
The present disclosure discloses a tibial plateau prosthesis with trabeculae containing zirconium-niobium alloy on oxidation layer and a preparation method thereof. The preparation method uses zirconium niobium alloy powder as raw material, conducting a 3D printing for one-piece molding to obtain an intermediate product of the tibial plateau, performing hot isostatic pressing and cryogenic oxidation to obtain the tibial plateau prosthesis comprising a proximal trabecular layer and a distal trabecular layer; the pore size and porosity of the proximal trabecular layer are evenly arranged, and the distal trabecular layer are partitioned; the topological structure of the trabeculae of the tibial plateau prosthesis is gradiently distributed from three dimensions; the micro-strain in the 64 % - 72 % region of the finite element model of the tibial plateau bone tissue is between the minimum effective strain threshold and the supraphysiological strain threshold, which increases the mechanical adaptation of the prosthesis.
Small Joint Fixation
A method of joining adjacent bone includes providing a medical device having a first implant portion, a second implant portion attached to the first implant portion, and a driver assembly having an instrument adapted to form an opening in bone. The driver assembly is integrally connected to and removably attached to the second implant portion at a connection, distal from the first implant portion. The driver assembly further has a wire driver extending therefrom, distal from the first implant portion. The method further includes inserting the wire driver into a wire driver tool; placing the first implant portion against a first bone structure; inserting the first implant portion into the first bone structure; removing the second implant portion from the driver assembly; using the driver assembly to form an opening in a second bone structure, adjacent to the first bone structure; and inserting the second implant portion into the opening.
METHODS OF MODIFYING THE POROUS SURFACE OF IMPLANTS
Methods are provided for modifying a porous surface of an implantable medical device by subjecting the porous surface to a modified micro-arc oxidation process to improve the ability of the medical device to resist microbial growth, to improve the ability of the medical device to adsorb a bioactive agent or a therapeutic agent, and to improve tissue in-growth and tissue on-growth of the implantable medical device.
Article and a method of making an article
An article, at least a surface of the article being made of or containing an organic material, and a thermally sprayed layer of coating material on the surface.