Expandable interbody devices
US11278423B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 1, 2018 |
| Grant date | Mar 22, 2022 |
| Priority date | — |
| Expiry date | Jun 8, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/30579
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An example expandable interbody device can include a structural body having an upper endplate and a lower endplate, where the endplates are shaped to nest tightly in a closed position. The device can include at least one wedge block and at least one linkage block arranged between the upper and lower endplates of the structural body. The device can include a drive screw threaded through the at least one wedge block and the at least one linkage block. The drive screw can be configured to rotate and drive the at least one wedge block to expand the upper and lower endplates of the structural body from the closed position to an intermediate position. Additionally, the drive screw can be further configured to rotate and drive the at least one linkage block to expand the upper and lower endplates of the structural body from the intermediate position to an open position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.