Method for determining the location and orientation of a bone for computer-assisted orthopedic procedures using intraoperatively attached markers
US6430434B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 9, 1999 |
| Grant date | Aug 6, 2002 |
| Priority date | — |
| Expiry date | Dec 9, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/3983
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method for re-registration between a robotic coordinate system and an image data set, said method comprising: providing an image data set that has been registered within a robotic coordinate system based upon an initial bone position within the robotic coordinate system; locating at least three conserved points fixed relative to the initial bone position prior to any detectable change in bone position from the initial bone position; relocating the same three conserved point after bone motion may have occurred to determine the locational change in the three conserved points; and re-register the image data set within the robotic coordinate system based on the locational changes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.