Spring clip-bottom loading polyaxial ball and socket fastener
US9615858B2 · kind B2 · utility
27Cited by
27References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 12, 2015 |
| Grant date | Apr 11, 2017 |
| Priority date | — |
| Expiry date | May 25, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/8883
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The bottom loading fastening system that 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 having at least two retainer rings within at least two retaining ring grooves for use in securing the spherical connector to the connecting assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.