Multipoint fixation implants and related methods

US10898232B2 · kind B2 · utility

Assignee

• Medos International Sarl · CH

Inventors

• Kevin Lee · Canton, US
• Mark Hall · Bridgewater, US
• Christopher Ramsay · West Wareham, US
• John Riley Hawkins · Raynham, US
• Albert Montello · Duxbury, US
• Joseph Peterson · South Dartmouth, US
• Benjamin Peter Johnston · Sydney, AU
• Heiko Koller · Alraft, DE
• Todd Albert · Narberth, US
• Christopher Ames · Mill Valley, US
• Bradford L. Currier · Rochester, US
• Claudius Thome · Innsbruck, AT
• Masashi Neo · Kyoto, JP

Key dates

• Filing date: Mar 20, 2018
• Grant date: Jan 26, 2021
• Expiry date: Mar 20, 2038

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2017/564
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Bone anchor assemblies are disclosed herein that can provide for improved fixation as compared with traditional bone anchor assemblies. An exemplary assembly can include a bracket or wing that extends down from the receiver member. The distal portion of the wing can define a bone anchor opening through which one or more auxiliary bone anchors can be disposed to augment the fixation of the assembly's primary bone anchor. A distal surface of the distal portion of the wing can be obliquely angled relative to a proximal-distal axis of the spanning portion to face one of a caudal direction or a cephalad direction. A distal surface of the distal portion of the wing can be obliquely angled relative to the proximal-distal axis of the spanning portion to face one of a medial direction or a lateral direction. Surgical methods using the bone anchor assemblies described herein are also disclosed.