Patent · US Active

Sonic screw

US9668798B2 · kind B2 · utility

2Cited by

18References

2Claims

0Family size

Assignees

Stryker European Holdings, LLC · US
WOODWELDING AG · CH

Inventors

Helge Giersch · Laboe, DE
Klaus Dorawa · Schwentinental, DE
Philipp Seiler · Widnau, CH
Jörg Mayer · Niederlenz, CH

Key dates

Filing date	Dec 9, 2013
Grant date	Jun 6, 2017
Priority date	—
Expiry date	Oct 10, 2034

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61B2017/8655
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A screw for fixation of, for example, a fracture having a hollow shaft, a first outer thread and radial openings at its distal end, and a second outer thread and an inner engagement portion at its proximal end. The second outer thread is adapted to engage with a tissue protection sleeve. The inner engagement portion is adapted to fit to a driving end of a driving tool. By way of this, forces in axial or radial direction may be applied to the screw by the sleeve, and forces in rotational direction may be applied by the driving tool. Therefore, the screw can be installed accurately at the intended site in an object.

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