Spinal fixation device with internal drive structure
US7559943B2 · kind B2 · utility
116Cited by
21References
33Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 9, 2004 |
| Grant date | Jul 14, 2009 |
| Priority date | — |
| Expiry date | Aug 13, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/861
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A bone screw arrangement including a retainer and an anchor. The retainer includes a first receiving region configured for receipt of a connecting rod, and a second receiving region configured for receipt of the anchor. The second receiving region includes an upper socket and a lower socket. The arrangement includes an interface that transfers torque applied to the retainer, to the anchor for securing the anchor to a bone element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.