Patient-specific acetabular alignment guides

US8603180B2 · kind B2 · utility

Assignee

• Biomet Manufacturing, LLC · US

Inventors

• John R. White · Winona Lake, US
• Lance D. Perry · Warsaw, US
• Aaron P. Smith · Warsaw, US
• Jason D. Meridew · Syracuse, US
• Bryan Morrison · Goshen, US
• W Jason Slone · Silver Lake, US
• Tyler D. Witt · Fond du Lac, US
• Mark A. Bollinger · Fort Wayne, US
• Robert Metzger · Wakarusa, US

Key dates

• Filing date: May 19, 2011
• Grant date: Dec 10, 2013
• Expiry date: May 19, 2031

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B33Y80/00
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An acetabular device includes a patient-specific acetabular alignment guide including a bone engagement surface. The bone engagement surface has a first portion configured and shaped to be conforming and complementary to an acetabular rim surface and a second portion configured and shaped to be conforming and complementary to a periacetabular area of an acetabulum of a patient. The acetabular alignment guide includes a plurality of guiding formations extending through the second portion for guiding a plurality of alignment pins therethrough. The bone engagement surface and the plurality of guiding formations are prepared from a three-dimensional model of the acetabulum of the specific patient reconstructed pre-operatively from a scan of the patient.