Clamp for stabilizing a cervical spine segment
US5620444A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 3, 1995 |
| Grant date | Apr 15, 1997 |
| Priority date | — |
| Expiry date | Oct 3, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/7047
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The clamp (1) comprises a pair of hooks (2, 3) adapted to bear on at least two cervical vertebrae (for example C1, C2) and each having a tubular portion (6, 7). The diameters of the latter are such as to permit the fitting and the sliding of one portion in the other and consequently the adjustment of the relative position of the two hooks. They are fixed in this position by a permanent deformation of the walls of the tubular portions (6, 7) by a suitable ancillary tool. The clamp provides better stability than known devices, since the two hooks (2, 3) of the clamp cannot move apart owing to their interconnection by deformation of material which clamps them in position relative to each other and avoids the use of components such as nuts and screws. Further, this clamp is small in size and is placed in position by the surgeon in a particularly simply manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.