Composite prosthetic bearing constructed of polyethylene and an ethylene-acrylate copolymer and method for making the same
US7186364B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 28, 2002 |
| Grant date | Mar 6, 2007 |
| Priority date | — |
| Expiry date | May 1, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2312/06
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An implantable prosthetic bearing is constructed of a composite material having a first layer and second layer. The first layer has an articulating surface defined therein, whereas the second layer has a engaging surface defined therein for engaging either another prosthetic component or the bone itself. The first layer of the implantable prosthetic bearing is constructed of a polymer such as polyethylene or UHMWPE, whereas the second layer is constructed of a copolymer of ethylene and an acrylate. The ethylene portion of the copolymer provides for adhesion to the polymer of the first layer, whereas the acrylate portion of the copolymer provides for adhesion to commonly utilized bone cements. A method of making a prosthetic bearing is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.