Measuring the femoral antetorsion angle γ of a human femur in particular on the basis of fluoroscopic images
US7925324B2 · kind B2 · utility
2Cited by
1References
16Claims
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Key dates
| Filing date | Nov 16, 2006 |
| Grant date | Apr 12, 2011 |
| Priority date | — |
| Expiry date | Feb 5, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B6/505
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method for defining an antetorsion angle γ of a femur is provided. The antetorsion angle γ is defined by two angles α′ and β that can be determined by means of two images of the femur, wherein the equation tan γ=tan α′/(cos β·cos θ) can be used to calculate the antetorsion angle γ.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.