Base piece adjustable prior to attachment and easily incorporated into a vertebral replacement device
US9339390B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 1, 2009 |
| Grant date | May 17, 2016 |
| Priority date | — |
| Expiry date | Apr 1, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2250/0006
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Adjustable base piece (1) that can be incorporated into a prosthesis replacing the corpus vertebrae and comprising—a plate (11) positioned in contact with an internal face of the adjacent corpus vertebrae; —a curved panel (12) that can be adjusted in multiple directions by virtue of a ball stem (120) housed in a head (111) of the plate (11) which allows it to adopt the optimal angle with respect to this fixed plate (11), so that the said curved panel (12), thanks to its possibilities of multi-axis adjustment, can press espousing the external shape of the corpus vertebrae adjacent to the prosthesis, —a clamping plug (13) which, once tightened, fixes the panel (12) to the plate (11) in the desired position, thus allowing this adjustable base piece (1) to be simultaneously in contact with an internal surface of the adjacent corpus vertebrae, thus giving this base piece, once attached to the corpus vertebrae, great bearing stability, with good adaptation to suit all shapes of vertebra encountered in real life.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.