Patent · US Expired

Correcting a spinal column

US5683390A · kind A · utility

255Cited by

4References

14Claims

0Family size

Assignee

Howmedica Inc. · DE

Inventors

Peter Metz-Stavenhagen · Frebershausen, DE
Bernd Robioneck · Preetz, DE

Key dates

Filing date	Feb 22, 1995
Grant date	Nov 4, 1997
Priority date	—
Expiry date	Feb 22, 2015

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61B17/86
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

An apparatus for correcting a spinal column having damaged vertebrae comprises a fastener (which is preferably a pedicle screw) having a receiving slot for holding a distracting or compressing bar. The bar is positioned within the slot in a manner permitting adjustment and is then locked in a fixed position, both functions achieved by a special two-part locking element which first holds and then rigidly locks the bar and fastener together. A method for correcting a spinal column having damaged vertebrae is also given.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.