Expandable cage
US8673011B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2009 |
| Grant date | Mar 18, 2014 |
| Priority date | — |
| Expiry date | Mar 18, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2310/00359
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An apparatus supports the spine between vertebrae and promotes spinal fusion. The apparatus generally includes a first supporting member, a second support member, and an expansion member. The first support member has a first longitudinal passage extending therethrough, a first supporting end configured to engage tissue, and a rack configured to engage a tool. The second supporting member contains a second longitudinal passage extending therethrough and a second supporting end configured to engage tissue. The second longitudinal passage is dimensioned to receive at least a portion of the first supporting member. The first and second supporting members are configured to move with respect to each other. The expansion member is removably positioned between the first and second supporting members and is adapted to maintain the first and second supporting members in a fixed relative position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.