Trimming aid
US4433686A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 2, 1981 |
| Grant date | Feb 28, 1984 |
| Priority date | — |
| Expiry date | Oct 2, 2001 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2230/0006
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
To facilitate the trimming of flange 100 (FIG. 6) of a prosthesis 101 (FIG. 6) to fit closely into reamed out acetabulum 200 in hip bone 201, the aid comprises a body component 11 which corresponds in overall shape to socket member 102 (FIG. 6) of the prosthesis and a separate flange 13 having a protrusion 14 engageable alternatively into socket 12 in the body component 11 and socket 104 of the prothesis. The entire aid is alternately offered into the acetabulum 200 and removed for trimming its flange 13, this being repeated until a good fit of the flange 13 into the acetabulum 200 is achieved. Then, the flange 13, removed from the body component 11, is fitted to the prosthesis 101 (as in FIG. 6) and the flange 100 of the prosthesis can then be trimmed straight away accurately for fitting into the acetabulum 200.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.