Multi-function device for the osteosynthesis of rachis
US5290288A · kind A · utility
Inventors
Key dates
| Filing date | Oct 4, 1991 |
| Grant date | Mar 1, 1994 |
| Priority date | — |
| Expiry date | Oct 4, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/868
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The object of the invention is a device for the osteosynthesis of rachis having pedicular screws, of the type that comprises a threaded, ogival-shaped point (1) and a threaded head (3) that are separated by a hexagonal body (2), said screws being linked by a connection member (5,6) characterized in that it also comprises a sole fixing part (7,8) provided with a passage hole (9) for said threaded head on which a nut (4,4') is screwed for locking the assembly consisting of the fixing part (7,8) and the connection member (5,6) on said head (3), one of these, either the fixing part or the connection member having its inner face shaped in order to provide a groove (17,21) for the accomodation and locking against rotation of said hexagonal body (2).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.