Expandable intervertebral implants
US11813174B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2020 |
| Grant date | Nov 14, 2023 |
| Priority date | — |
| Expiry date | Jun 5, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2250/0004
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Interbody spacers are expandable horizontally and vertically by an application of axial force, and lockable in an expanded configuration. The spacers include support members interconnected to end bodies by pivotable link members. The spacers are introduced between vertebral bodies in a compressed configuration and expanded to fill the intervertebral space and provide support and selective lordotic correction. Graft material may be introduced into the expanded spacer. Provisional and/or supplementary locking means lock the spacers in the expanded configuration. Embodiments of the spacers include symmetrically and asymmetrically configured spacers. Methods of expansion include symmetric expansion or asymmetric expansion along each of two directions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.