Systems and methods for intra-operative pelvic registration

US11246508B2 · kind B2 · utility

Assignee

• MAKO Surgical Corp. · US

Inventors

• Sunil Gupta · Austin, US
• Ta-Cheng Chang · Weston, US
• Zenan Zhang · Fort Lauderdale, US
• Kevin Bechtold · Pine Island Ridge, US
• Matt Thompson · Marietta, US
• Eric Branch · Alexander City, US
• Varun Chandra · Fort Lauderdale, US
• Zhu Wu · Beijing, CN

Key dates

• Filing date: Oct 15, 2019
• Grant date: Feb 15, 2022
• Expiry date: Aug 13, 2040

Classification

• Technology area (CPC G): Physics
• CPC primary: G06T2207/30052
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A system for intra-operatively registering a pelvis comprising an acetabulum with a computer model of the pelvis in a coordinate system. The system may include: a) a surgical navigation system including a tracking device; and b) at least one computing device in communication with the surgical navigation system. The at least one computing device: i) receiving first data points from first intra-operatively collected points on an articular surface of the acetabulum, the first data points collected with the tracking device; ii) receiving a second data point from a second intra-operatively collected point on the pelvis, the second data point collected with the tracking device, the second data point corresponding in location to a second virtual data point on the computer model; and iii) determining an intra-operative center of rotation of the femur relative to the pelvis from the first data points.