Cervical plate locking mechanism and associated surgical method
US8840650B2 · kind B2 · utility
6Cited by
39References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 18, 2007 |
| Grant date | Sep 23, 2014 |
| Priority date | — |
| Expiry date | Apr 21, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/8038
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The cervical plate locking mechanism of the present invention is elegant in its design and effective in its performance, and utilizes a plate with holes that each incorporate a locking lip structure and locking screws that each incorporate a head portion having petal structures that are outwardly biased prior to insertion via an internally-disposed c-ring or the like. Advantageously, the lead-in torque of each of the locking screws is less than the lead-out torque of each of the locking screws. Thus, reverse threading or backing out is prevented.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.