Patent · US Active

Coupling device for coupling a bone anchor to a rod and bone anchoring device with such a coupling device

US10426520B2 · kind B2 · utility

4Cited by

1References

22Claims

0Family size

Assignee

BIEDERMANN TECHNOLOGIES GMBH & CO. KG · DE

Inventors

Timo Biedermann · Trossingen, DE
Wilfried Matthis · Kenzingen, DE
Bernd Fischer · Bräunlingen, DE

Key dates

Filing date	Oct 20, 2016
Grant date	Oct 1, 2019
Priority date	—
Expiry date	May 2, 2037

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61B17/8605
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A coupling device for coupling a bone anchor to a rod includes a receiving part having a longitudinal axis, a channel for receiving a rod, and an accommodation space for holding a head of a bone anchor, a pressure member having a first portion for holding and clamping the head and a deformable portion with a free end, and a locking member. The pressure member is expandable for inserting the head and adjustable to lock the head. When the deformable portion is at a first configuration, the free end of the deformable portion is supported by the receiving part, and at least part of the locking member is movable to exert a force on the deformable portion for adjusting the deformable portion to a second configuration where at least part of the deformable portion is farther away from the longitudinal axis compared to the first configuration.

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