Method and instrumentation for vertebral interbody fusion
US7189242B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 10, 2002 |
| Grant date | Mar 13, 2007 |
| Priority date | — |
| Expiry date | Jul 29, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/4687
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method and instrumentation particularly adapted for disc space preparation from an anterior approach to the spine. In one aspect, an expandable template is provided having guides to guide a cutting device for bilateral formation of openings in the disc space. In another aspect, an improved guide member is provided for guiding a cutting tool. Still further, the invention provides an improved double barrel guide sleeve with a central distraction extension and lateral non-distracting extensions. Optionally, the guide sleeve includes windows and covers to selectively cover the windows. An improved reamer with an internal chamber and optional modular coupling is also provided. A depth stop is provided to selectively engage a tool shaft and a guide sleeve to control tool penetration into the disc space. A method of using the disclosed instruments is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.