Methods of pose estimation of three-dimensional bone models in surgical planning a total ankle replacement

US11147627B2 · kind B2 · utility

Assignee

• Stryker European Operations Limited · IE

Inventors

• Ashish Gangwar · Bhangrola, IN
• Kanishk Sethi · Bhangrola, IN
• Anup Kumar · Bhangrola, IN
• Ryan Sellman · Carlisle, US
• Peter Sterrantino · Jacksonville, US
• Manoj Kumar Singh · Mahwah, US

Key dates

• Filing date: Apr 23, 2020
• Grant date: Oct 19, 2021
• Expiry date: Apr 23, 2040

Classification

• Technology area (CPC G): Physics
• CPC primary: G06T2219/2004
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A computer process including receiving first patient bone data of a patient leg and foot in a first pose, the first pose comprising a position and orientation of the patient leg relative to the patient foot as defined in the first patient bone data. The computer process may further include receiving second patient bone data of the patient leg and foot in a second pose, the second pose comprising a position and orientation of the patient leg relative to the patient foot as defined in the second patient bone data. The computer process may further include generating a 3D bone model of the patient leg and foot. Finally, the computer process may include modifying the 3D bone model of the patient leg and foot such that the plurality of 3D bone models are reoriented into a third pose that matches the second pose.