Polyaxial bonescrew assembly
US9393048B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 23, 2011 |
| Grant date | Jul 19, 2016 |
| Priority date | — |
| Expiry date | Mar 22, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/7004
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A bone screw assembly includes a screw, an outer housing, and an inner housing. The screw includes a shank and a head. The outer housing has a proximal end, a distal end, and a passageway extending longitudinally therethrough. The outer housing defines a saddle at the proximal end thereof for receiving at least a portion of a rod therein. The inner housing is positionable within the passageway of the outer housing. The inner housing has a recessed distal portion for receiving the head of the screw therein. The inner housing also includes a proximal surface defining a substantially V-shaped configuration for receiving rods of different diameters therein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.