Spinous process fusion implants and insertion, compression, and locking instrumentation
US8721686B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 21, 2011 |
| Grant date | May 13, 2014 |
| Priority date | — |
| Expiry date | Oct 23, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B50/33
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A bone plate assembly including at least one bone plate, polyaxially adjustable fixation elements and a polyaxially adjustable locking mechanism. A first plate includes at least one polyaxial element for lockable connection with a fixation pad, and a connection feature which allows the plate to translate and polyaxially rotate relative to the locking mechanism. A second plate includes at least one polyaxial element for connection with a fixation pad and a connection feature for non-rotatable connection with the locking mechanism. The locking mechanism allows translation and polyaxial adjustment of the first plate relative to the second plate and locks the first and second plates via a taper lock. The fixation pad includes a deflectable spacer configured to prevent premature locking of the pad. Methods for implantation of the bone plate assembly between bone structures are disclosed. Instrumentation for implantation, compression and locking of the bone plate assembly is disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.