Surgical implant
US9702037B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 11, 2016 |
| Grant date | Jul 11, 2017 |
| Priority date | — |
| Expiry date | Mar 11, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2430/20
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A surgical implant comprising: a substrate having an exterior surface and a plurality of layers disposed over the substrate exterior surface. The substrate comprises a polymeric material, and the plurality of layers comprises: an activated substrate surface layer; a valve metal layer; and a porous valve metal oxide layer, wherein the valve metal layer is disposed between the activated substrate layer and the porous valve metal oxide layer. The disclosure provides for a method for producing a polymeric surgical implant. The exterior substrate surface is treated by one or more processes comprising: plasma activation; electron beam irradiation; ultraviolet light; and low energy Ar+ ion beam irradiation; producing an activated substrate surface layer. A plurality of layers is applied over the activated substrate surface layer. The surface is converted by a spark-anodization process in an alkaline bath containing Ca and P ions into a layer of porous valve metal oxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.