Patent · US Active

Pedicle screw system comprising a locking screw with threaded chamfer

US10893889B2 · kind B2 · utility

0Cited by

2References

20Claims

0Family size

Assignee

Aesculap AG · DE

Inventors

Stephan Lindner · Wurmlingen, DE
Sven Krüger · Würzburg, DE
Alexander Haas · Albuquerque, US

Key dates

Filing date	Jul 20, 2017
Grant date	Jan 19, 2021
Priority date	—
Expiry date	Aug 15, 2037

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16B35/047
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A bone screw system includes a bone screw having a tulip that forms a seat for a longitudinal support for surgical connection of adjacent bone screws. The tulip has a tulip thread into which a clamping screw is screwed. The clamping screw has a clamping screw thread for locking the longitudinal support by clamping within the seat. The clamping screw thread is provided on the run-in side with a thread chamfer. The thread chamfer is introduced to the clamping screw thread while chamfering a thread elevation in the radial direction.

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