Dual-shaft implant expansion driver with reversible driver key mechanism and expandable intervertebral implant system
US11344434B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 7, 2020 |
| Grant date | May 31, 2022 |
| Priority date | — |
| Expiry date | Dec 4, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/4668
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A surgical driver apparatus includes a housing and an inner driver shaft having a proximal end secured within the housing and a distal end extending out from a first side of the housing. The inner driver shaft is configured to rotate with respect to the housing. The surgical driver apparatus further includes an outer driver shaft and an idler driver shaft. The outer driver shaft is positioned coaxial with the inner driver shaft and configured to rotate independently from the inner driver shaft. The idler driver shaft is configured to transmit torque to the outer driver shaft. Additionally, the surgical driver apparatus includes a driver key comprising a driving feature and a counter-driving feature. The driver key is configured to engage a second side of the housing in one of a plurality of orientations configured to rotate the inner driver shaft and/or the outer driver shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.