Device for measuring angular movement of vertebrae
US5291901A · kind A · utility
86Cited by
5References
6Claims
0Family size
Inventor
Key dates
| Filing date | Sep 14, 1992 |
| Grant date | Mar 8, 1994 |
| Priority date | — |
| Expiry date | Sep 14, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/067
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A device for measuring angles of freedom of adjacent vertebrae which includes two reference elements associated with each vertebra respectively. Indicators are associated with the two reference elements for measuring the angle of freedom of movement of the vertebrae in torsion in a plane perpendicular to the longitudinal axis of the vertebrae and for measuring the angle of freedom of the vertebrae in lateral inflexion in a plane perpendicular to that of the spinous processes as a function of a given position of flexion-extension of the vertebrae in the plane containing the spinous processes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.