46 results about "Implant coating" patented technology

Coatings for use in artificial joints and other implanted medical devices. The coatings comprise a dual layer structure vapor deposited atop a medical grade substrate, such as cobalt chromium. The dual layer structure comprises a first ceramic layer vapor deposited atop at least a portion of the substrate and a second ceramic layer deposited atop the first ceramic layer. The first ceramic layer is formed of a material which has particularly good adhesion to the substrate, and the second ceramic layer from a material exhibiting particularly high hardness and good wear characteristics. The vapor deposition process is controlled so as to form a graded interface between the two ceramic layers to form a dual layer coating which resists delamination, adheres well to the substrate, and exhibits good wear characteristics in situ.

The present invention provides polymer brush constructs, for example, surfaces decorated with hyaluronan polymers, and methods of making the same. The constructs are useful as functional materials for numerous applications, e.g., as lubricants, implant coatings, bandages and other uses.

The invention belongs to the field of pharmaceutical coating technology, and specifically provides a coating technology for naltrexone implants, comprising the following steps: (1) dissolving polylactic acid in an organic solvent to form a coating solution, and placing it in a coating pool , standby; (2) Soak the naltrexone implant in the coating solution, wrap a layer of polylactic acid film on the surface of the implant; (3) hang and dry the naltrexone implant wrapped with the polylactic acid film . The coating pool is equipped with a liquid pool pipeline, which is evenly distributed with small holes and soaked in the coating liquid, so that the tablets can be evenly wrapped when passing through the liquid pool pipeline, and the method of hanging and drying is adopted to avoid the high viscosity. The coating fluid compromises the integrity of the coating due to the tablets sticking to each other or coming into contact with other objects. The present invention also provides the application of the above coating process in the preparation of naltrexone implants.