Hip-joint prosthesis
US8337565B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 12, 2010 |
| Grant date | Dec 25, 2012 |
| Priority date | — |
| Expiry date | Jan 28, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/3686
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method of optimizing the geometry of a femoral stem of hip joint prosthesis is disclosed. The femoral stem comprises a neck and an anchoring blade that is attached to the neck and that tapers towards a distal end with a lateral narrow side comprising a distal straight portion and a proximal arcuate portion corresponding to a curve. The transition between the distal straight portion and the proximal arcuate portion occurs at an outer lateral point. The method comprises a means of optimizing the profile of the curve of said proximal arcuate portion by a process of iterative modeling steps using a series of curves each defined by a path traced by the outer lateral point on withdrawal of a profile of the stem from a cavity of complementary shape to the stem.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.