Endoprosthetic bone joint devices
US4623351A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 19, 1984 |
| Grant date | Nov 18, 1986 |
| Priority date | — |
| Expiry date | Apr 19, 2004 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2220/0041
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An endoprosthetic acetabular component of overall cup form has three parts: an outer part (10) for securement in bone, an inner part (20) defining a dished articulation surface (23) and adjustably engageable with the outer part to allow independent variation of such surface in both inclination and rotation, and a third part (30) to secure the inner and outer parts with a preselected adjustment of the former. The inner/outer part engagement is preferably of spherical bearing form. Also, the inner part is preferably of two sub-parts (21, 24) respectively providing the articulation surface and the outer part engagement, the former sub-part being selectable from a range interchangeably connectable with the latter sub-part but having respectively different heights of articulation surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.