Spinal rod extenders and methods of use
US7922746B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 31, 2006 |
| Grant date | Apr 12, 2011 |
| Priority date | — |
| Expiry date | Jun 18, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/7014
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A spinal rod assembly may be formed by attaching an extension portion onto a spinal rod that extends along a longitudinal axis. The extension portion may include a rod coupler that attaches to the spinal rod with a first coupling that includes a first degree of rotational freedom and a first degree of translational freedom in positioning the rod coupler relative to the spinal rod along the longitudinal axis. The extension portion may further include an extender rod including an elongated rod body that may be secured to the rod coupler using a second coupling that includes at least a second degree of rotational freedom in positioning the extender rod relative to the rod coupler about an axis substantially perpendicular to the longitudinal axis. The extension portion may be assembled in situ to a spinal rod that has been previously secured to vertebral bodies in a patient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.