Variable-density implants and related methods and systems
US9517136B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 17, 2014 |
| Grant date | Dec 13, 2016 |
| Priority date | — |
| Expiry date | Jul 11, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2310/00634
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Ceramic orthopedic implants may have one or more dense inner layers and one or more porous outer layers. Methods for manufacturing the implants may include one or more stages during which the dense inner layer(s) are partially compressed. At least one porous outer layer may include coating particles that are present at a surface of one or more inner layer(s) while pressure is applied to attach the coating particles to the inner layer(s) and to further compress one or more of the inner layer(s). Various layers may be formed until an implant, or other device, is formed having the desired density gradient and/or other properties, as disclosed herein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.