Patent · US Active

Locking bone screw and spinal plate system

US7935137B2 · kind B2 · utility

57Cited by

35References

16Claims

0Family size

Assignee

DePuy Spine, Inc. · US

Inventors

Michael Gorhan · Raynham, US
Michael Jacene · Northbridge, US
Eric Kolb · Sandy Hook, US

Key dates

Filing date	Dec 8, 2004
Grant date	May 3, 2011
Priority date	—
Expiry date	Jun 4, 2028

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61B2090/035
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A bone plate system including a bone plate and a bone screw with an integrated locking mechanism is disclosed. The bone screw includes an elongate member having a threaded shank and a bone screw head that is radially deformable. The integrated locking mechanism sits within the bone screw head and can rotate between a locked condition and an unlocked condition. When the bone screw head is seated within an aperture in the bone plate, rotating the integrated locking mechanism into the locked condition helps to prevent bone screw backout.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.