Vertebral column implant and repositioning instrument
US5478340A · kind A · utility
Inventor
Key dates
| Filing date | Jan 28, 1993 |
| Grant date | Dec 26, 1995 |
| Priority date | — |
| Expiry date | Jan 28, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/0256
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An implant for stabilizing the vertebral column, having a longitudinal support and anchoring screws which can be fastened to the latter in an angularly stable manner so that even long-span multi-segmental instabilities can be treated. As the longitudinal support a sectional rod is provided, to which transverse brackets are clamped. The anchoring screws are fastened at an adjustable angle of inclination to a transverse bracket in each case. The transverse bracket comprises a clamping piece and a connector, which are screwed together. The clamping piece has two jaws which form a suitable receiving opening for the preferably cross-sectionally circular sectional rod and are drawn together by a clamping screw. In addition, two repositioning instruments for altering the position of the vertebral bodies during the operation are described, namely a traction instrument and an instrument which can be used as a basis of application for the traction instrument and which creates a connection between two neutral vertebrae.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.