Ankle replacement system and method

US9993255B2 · kind B2 · utility

Assignee

• WRIGHT MEDICAL TECHNOLOGY, INC. · US

Inventors

• Shawn McGinley · Arlington, US
• Robert M. Howles · Bartlett, US
• Daniel E. Free · Arlington, US
• Vinay D. Patel · Memphis, US
• Ramon Luna · Arlington, US
• Matthew D. Schultz · Memphis, US

Key dates

• Filing date: Jul 31, 2014
• Grant date: Jun 12, 2018
• Expiry date: Mar 18, 2037

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61F2002/4205
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A system includes a guide arm, a ratchet arm frame configured to be coupled to the guide arm, a ratchet arm configured to be coupled to the ratchet arm frame, and a sagittal sizing guide body configured to be coupled to the ratchet arm. The sagittal sizing guide body includes a first radiopaque object disposed at a first position and a second radiopaque object disposed at a second position that is spaced apart from the first position. The first radiopaque object has a length that corresponds to a length of a second prosthesis component. When the surgical alignment system is positioned for use on a patient, the first radiopaque object identifies a location at which a first resection of a first bone is to be performed. The second radiopaque object has a profile that corresponds to a profile of a first prosthesis component for installation on a second bone.