Apparatus for, and method of, providing hip prosthesis implantation
US6589285B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 20, 2001 |
| Grant date | Jul 8, 2003 |
| Priority date | — |
| Expiry date | Nov 20, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2310/00029
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Surface irregularities are removed from the inner wall of a femur cavity, preferably tapered. A tamp having an opening and a socket is disposed in the cavity. The tamp may be one of a plurality of tamps each having a different length for the opening. A guide, one of a plurality, fits snugly in the opening. The guide has a collar which cooperates with the tamp socket to limit the movement of the guide into the tamp. A working portion of each guide below the intermediate position has a bulbous shape which is tapered in accordance with the femur taper. Bone fragments between the guide working portion and the femur inner wall are packed against the inner wall when the tamp and the guide are driven into the femur cavity. Numerals on the guide adjacent a slot in the tamp indicate the disposition of the guide in the tamp. Guides with working portions of progressively increasing lengths are disposed sequentially in progressive ones of the tamps to pack fragments at an increasing height in the femur cavity against the cavity inner wall. When the last one of the tamps and the last one of the guides have been removed from the cavity, a prosthesis having dimensions slightly less than the femur…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.