Anterior lumbar intervertebral stabilizer
US7575598B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 7, 2005 |
| Grant date | Aug 18, 2009 |
| Priority date | — |
| Expiry date | Jan 1, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2250/0039
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A lumbar intervertebral stabilizer for a lumbar region of a spine includes: a first surface operable to engage an endplate of a first vertebral bone of a spine; a second surface spaced apart from the first surface and operable to engage an endplate of an adjacent second vertebral bone of the spine; a spring element including at least one of: (i) a helical wound spring; and (ii) a hollow body having at least one slit forming a plurality of annular circumferential helical coils, the spring element being disposed between the first and second surfaces and being operable to provide reactive force in response to compression loads from the first and second vertebral bones, wherein at least some diameters of respective turns of the helical coils differ.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.