Patent · US Active

Devices and methods for monoaxial screw conversion

US9216043B2 · kind B2 · utility

9Cited by

18References

16Claims

0Family size

Assignee

Medos International Sarl · CH

Inventors

Shawn D. Stad · Lakeville, US
Frank Spratt · Bridgewater, US
James Paiva · Warren, US

Key dates

Filing date	Mar 14, 2013
Grant date	Dec 22, 2015
Priority date	—
Expiry date	Jun 4, 2033

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61B2090/037
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

Devices and methods for selectively converting polyaxial bone screws into monoaxial screws are described herein. In one embodiment, a spinal screw extension instrument is provided having an outer component configured to engage a receiving member of a polyaxial screw. The instrument further includes an inner component disposed within an inner lumen of the outer component and configured to translate longitudinally relative to the outer component such that the inner component can apply a distal force to a compression member of the polyaxial screw disposed within a distal portion of the receiving member to thereby convert the polyaxial screw to a monoaxial screw.

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