Orthopaedic implants having self-lubricated articulating surfaces designed to reduce wear, corrosion, and ion leaching
US10543094B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2016 |
| Grant date | Jan 28, 2020 |
| Priority date | — |
| Expiry date | Dec 29, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2430/24
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An orthopaedic implant can replace a joint in a patient. The orthopaedic implant includes a first component having a first component surface and a second component having a second component surface. The first component surface and the second component surface mate at an interface. The first component surface includes a metal substrate, a nanotextured surface, a ceramic coating, and a transition zone. The nanotextured surface is disposed directly upon the metal substrate and has surface features in a size of 10−9 meters. The ceramic coating conforms to the nanotextured surface and includes a plurality of bio-active sites configured to attract and retain calcium and phosphorous cations. The transition zone is disposed between the metal substrate and the ceramic coating. The transition zone includes a concentration gradient transitioning from the metal substrate to the ceramic coating and there is no distinct interface between the metal substrate and the ceramic coating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.