Method for determining articular bone deformity resection using motion patterns
US9122670B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 16, 2011 |
| Grant date | Sep 1, 2015 |
| Priority date | — |
| Expiry date | Feb 11, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2219/2021
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The invention relates to a method for real-time determination an optimal corrected surface of a first bone and/or a second bone forming together an articulation, the first and/or second bones presenting an overgrowth deformation, said corrected surface providing a greater range of motion of the articulation, the method comprising the following steps: i) constructing from acquired images of the articulation 3D voxel models of the first bone and the second bone; ii) for each of first and second bone voxel models, constructing a coordinate system defined by a center and three axes; iii) applying a motion pattern on the coordinate system of the second bone with respect to the coordinate system of the first bone, a motion pattern being a set of contiguous positions of the first or second bone coordinate systems with respect to the other bone coordinate system, the contiguous positions defining a movement of one bone with respect to the other, wherein said motion pattern is initially loaded from a data base of predefined motion patterns; iv) determining a resection volume from said motion pattern as being the union of interpenetration volumes of the first or second bone voxel model with …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.