System and method for component positioning by registering a 3D patient model to an intra-operative image
US11020189B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2020 |
| Grant date | Jun 1, 2021 |
| Priority date | — |
| Expiry date | Jun 12, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2211/424
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention comprises a system and method that may help place or position a component, such as an acetabular cup or a femoral component, during surgery. An example system may iteratively register a plurality of two-dimensional projections from a three-dimensional model of a portion of a patient, the three-dimensional model being generated from a data set of imaging information obtained at a neutral position. An example system may further score each two-dimensional projection against an intra-operative image by calculating a spatial difference between corresponding points. A two-dimensional projection having a minimum score reflecting the smallest distance between the corresponding points may be identified. Using the two-dimensional projection having the minimum score, an adjustment score reflecting a difference in the values representing the orientation of the three-dimensional model at the intra-operative projection position and values representing the orientation of the three-dimensional model at the neutral position may be calculated. The invention also comprises a system and method also comprising surgical method and workflow to improve the efficiency of a surgical procedure …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.