Locking cap release mechanism
US8998922B2 · kind B2 · utility
2Cited by
1References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 16, 2012 |
| Grant date | Apr 7, 2015 |
| Priority date | — |
| Expiry date | May 17, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/7035
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention is directed to a release mechanism for removing and/or releasing a locking cap from the head of a bone anchor in situ. The release mechanism includes a sleeve, an anchor coupling member and a knob. The anchor coupling member is located within the sleeve and the knob engages both the anchor coupling member and the sleeve. The distal end of the sleeve and anchor coupling member engage the bone anchor causing the bone anchor to splay from the locking cap. A driver may be inserted into the central bore of the release mechanism to release any further threaded engagement of the locking cap and the bone anchor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.