Artificial joint cup, magnetic control sputtering coating film device and preparation method thereof
US10233537B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 23, 2014 |
| Grant date | Mar 19, 2019 |
| Priority date | — |
| Expiry date | Aug 7, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2310/00407
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The present invention aims at improving and upgrading the conventional devices based on the low temperature magnetron sputtering coating devices. Starting from the material systems, the invention provides a new material system and a manufacturing method thereof based on a high molecular weight polyethylene joint cup to solve the poor binding force problem between the film and the matrix, and the problems of easy oxidization and carbonization of high molecular weight polyethylene with low temperature magnetron sputtering technologies at the same time. On the above basis, the ultra-lubrication performance of graphite-like structure films and ultra-hardness of diamond-like structure films are utilized to construct a nano-scale multilayer structure DLC film alternatively coated with a graphite-like film and a diamond-like film. The present invention improves the wear resistance of high molecular weight polyethylene joint cups, and restricts low accuracy of joints due to creeping by constructing a new artificial hip joint cup of ultra-wear-resisting nano-scale multilayer structure DLC film with high hardness and self-lubricating capability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.