Top loading polyaxial ball and socket fastener with saddle
US8663290B2 · kind B2 · utility
42Cited by
26References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 15, 2012 |
| Grant date | Mar 4, 2014 |
| Priority date | — |
| Expiry date | Jun 10, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/7032
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The fastening system consists of the polyaxial ball and socket joint used in conjunction with a bone screw having threads on one end for use in anchoring to the spine and a spherical connector on the other end operating as a pivot point about which a connecting assembly moves in a polyaxial fashion. A substantially U-shaped connecting assembly has a lower receptacle that operates as a socket for housing a retainer ring within a retaining ring groove. The retaining ring cooperates with the connector assembly and a saddle that is positioned atop the spherical connector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.