Spinal implant
US6520993B2 · kind B2 · utility
240Cited by
71References
29Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Dec 29, 2000 |
| Grant date | Feb 18, 2003 |
| Priority date | — |
| Expiry date | May 9, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2310/00359
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An implantable spinal graft includes a substantially annular body with opposed superior and inferior surfaces. At least a portion of the superior and inferior surfaces includes a plurality of bone-engaging protrusions. Both of the superior and inferior surfaces also include at least one region that is free of protrusions. Preferably, the protrusion-free regions are centrally disposed and are oriented so as to be parallel to or angled with respect to an anterior-posterior axis of the implant. The implant further includes a tip on the posterior that is formed by converging portion of the superior and inferior surfaces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.