Method for enabling medical navigation with minimised invasiveness

US10537392B2 · kind B2 · utility

Assignee

• Brainlab AG · DE

Inventors

• Manuel Millahn · Birkenfeld, DE
• Bert Bracke · Vaterstetten, DE
• Christian Brack · Diedorf, DE

Key dates

• Filing date: Mar 3, 2010
• Grant date: Jan 21, 2020
• Expiry date: Mar 3, 2030

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2090/363
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A method for providing positional relationship data, which represent the position of a marker device relative to a bone which it is affixed to, to a medical navigation system, comprising the steps of: a) receiving bone registration data which represent locations of points on the surface of the bone; b) calculating, from the bone registration data, the current relative position between the bone and a medical instrument which bears the marker device; c) determining an offset between the current relative position and a desired relative position; d) outputting indication information which is based on the calculated offset; e) receiving bone re-registration data which represent locations of points on the surface of the bone; and f) calculating the positional relationship data from the bone re-registration data.