Patent · US Active

Bone screw

US8900279B2 · kind B2 · utility

21Cited by

22References

7Claims

0Family size

Assignee

Zyga Technology, Inc. · US

Inventors

Robert L. Assell · Windom, US
Brian P. Beaubien · Windom, US
Jeremy Carr · Lauderdale, US

Key dates

Filing date	Jun 11, 2012
Grant date	Dec 2, 2014
Priority date	—
Expiry date	May 2, 2033

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61B17/866
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A bone screw including a main body portion having a proximal end and a distal end. An external threaded surface and an internal threaded surface are formed on the main body portion. The external threaded surface intersects the internal threaded surface proximate a lower surface of the external threaded surface and a lower surface of the internal threaded surface. A plurality of bone growth apertures is defined on the surface of the main body portion where the external threaded surface and the internal threaded surface are not located. The bone growth apertures comprise between about 10 percent and about 60 percent of the surface of the main body portion.

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