Acetabulum sizer and drill guide
US4528980A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 19, 1983 |
| Grant date | Jul 16, 1985 |
| Priority date | — |
| Expiry date | Oct 19, 2003 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/3401
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An acetabulum sizer and drill guide for use in implanting an acetabular cup prosthesis comprises a substantially hemispherical shell having an outside surface that generally conforms to the outside surface of the prosthesis to be fitted into a prepared acetabulum. Viewing ports in the shell enable visual inspection of the acetabulum during sizing thereof. A circular peripheral rim on the shell is generally flush with the peripheral boundary of a properly sized acetabulum when the shell is seated therein. Drill guide structure on the shell functions to guide a drill bit into the pelvis bone adjacent the acetabulum in preparing the acetabulum for the acetabular cup prosthesis. A handle is releasably connected to the drill guide structure for manipulating the shell during sizing and drilling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.