Expandable trials
US9186259B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 25, 2014 |
| Grant date | Nov 17, 2015 |
| Priority date | — |
| Expiry date | May 4, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/30579
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Systems and methods for distracting an intervertebral disc space are provided. The systems use a staged, bilaterally expandable trial. The systems and methods of distracting an intervertebral space are provided in a manner that addresses the problem of subsidence. The method includes inserting the trial into the intervertebral space in a collapsed state and, once inserted, the trial is then used for distracting the intervertebral space using an expansion that includes a first stage and a second stage. The first stage includes expanding the trial laterally toward the peripheral zones of the top vertebral plate and the bottom vertebral plate, and the second stage includes expanding the trial vertically to distract the intervertebral space.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.