Expandable vertebral device with ring plate
US8663330B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2012 |
| Grant date | Mar 4, 2014 |
| Priority date | — |
| Expiry date | Dec 21, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2220/0033
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An expandable cage supports adjacent vertebra in spine surgery. The expandable cage includes a first supporting member configured to engage tissue and a second supporting member operatively associated with the first supporting member. The first and second supporting members are movable relative to each other. The expandable cage further includes a cam lock mechanism configured to maintain the first and second supporting members in a fixed relative position. In another embodiment, the expandable cage includes a ring plate lock mechanism in lieu of the cam lock mechanism. The ring plate lock mechanism 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.