Spinal implant insertion instrument for spinal interbody prostheses
US6814737B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 10, 2003 |
| Grant date | Nov 9, 2004 |
| Priority date | — |
| Expiry date | Jun 5, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S623/908
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A spinal implant insertion instrument for intervertebral implant surgery formed from a hollow first element of various external diameters, including a channel to accommodate and incorporate a vertebral pedicle, and a second element joined by a hinge to the first element, allowing reduction of the external diameter of the leading edge of the spinal implant insertion element sufficient to allow the passage of the spinal implant insertion instrument into the intervertebral disc space in a safe fashion, as the first maneuver, to be followed by activation of the second element upon the first, restoring the internal diameter of the spinal implant insertion instrument to a sufficient radius to allow successive passage of cutting, reaming, tapping instruments, and subsequent implantation of a spinal interbody implant device. The design of this instrument reduces traction upon sensitive neural elements, allows controlled removal of the medial portion of the vertebral pedicle, distracts the intervertebral disc space, and allows safe passage of reaming, tapping, and spinal implant insertion devices through the expanded bore of the spinal implant insertion instrument.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.