Segmented insert for intervertebral support
US8328852B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2009 |
| Grant date | Dec 11, 2012 |
| Priority date | — |
| Expiry date | Mar 15, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2250/0063
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A spinal intervertebral support implant, for fusion or for dynamic stabilization purposes. A rod, preferably in the form of a screw, is inserted obliquely from the pedicle of an inferior vertebra into the body of a neighboring superior vertebra, through the disc space. The rod can be anchored into the body of the superior vertebra by means of a force fit or a screw thread. A pile of elements is disposed on the rod in the disc space like a pile of washers, so that the compression load between vertebrae is carried partly by these elements. These elements can be inserted through the bore through which the rod was inserted in a tightly folded configuration, and deployed into their washer-like form only when in position in the intervertebral space, such that there is no need for any additional incisions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.