VERTEBRAL SCRAPER

摘要

A trialing and preparation system for preparing a disc space between two adjacent vertebrae is provided. The system includes a guide shaft, a trialing cage or spacer, a scraper and a driving shaft. The guide shaft supports the trialing spacer within the disc space and may include an angular adjustment for such access. The scraper sleeves over the guide shaft into an abutting relationship with the adjacent vertebrae. The driving shaft is coupled to the scraper by a pivoting and reciprocation mechanism that allows angular adjustment of the scraper. Also, reciprocation of the driving shaft reciprocates the scraper through a limited sweep of motion to remove osteophytes from the vertebrae.

主权项

1. A scraper for use on a pair of adjacent vertebral bodies having an intervening disc space wherein a guide shaft is positioned in or adjacent the disc space, the scraper comprising:
a body defining an opening configured to fit over the guide shaft and advance toward the distal end of the guide shaft until adjacent the vertebral bodies; a scraping surface, the body configured to support the scraping surface against the vertebral bodies; and a reciprocation mechanism configured to reciprocate the body and the scraping surface through a limited sweep range to remove material from the vertebral bodies.