Patent · US Active

Bone anchors

US11202659B2 · kind B2 · utility

0Cited by

128References

7Claims

0Family size

Assignee

Medos International Sarl · CH

Inventors

Philip A. Cormier · Quincy, US
Frank Spratt · Bridgewater, US
Richard W. Fournier · New Bedford, US
Sara Root · Stoughton, US
Thibault Chandanson · Yverdon-les-Bains, CH

Key dates

Filing date	May 29, 2019
Grant date	Dec 21, 2021
Priority date	—
Expiry date	Feb 21, 2040

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61B17/864
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A cannulated bone anchor assembly includes a bone anchor, a receiver member for receiving a spinal fixation element to be coupled to the bone anchor, and a closure mechanism to fix the spinal fixation element with respect to the receiver member. The bone anchor includes a distal shaft having a first threaded section distal to a proximal head, a second threaded section distal to and adjacent the first threaded section, and a third threaded section distal to and adjacent the second threaded section. The first threaded section having a constant major and minor diameter. The second threaded section having a tapering major and minor diameter. The third threaded section having a tapering major diameter and a constant minor diameter.

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