Methods and systems for performing image registration in a computer-assisted surgery system
US12322124B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 14, 2021 |
| Grant date | Jun 3, 2025 |
| Priority date | — |
| Expiry date | Jan 25, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30204
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A surgical system including a patient tracker and a tracking system. The patient tracker is adapted for attachment to a patient, and includes a hybrid marker having a radiological marker contained within an optical marker. The tracking system tracks the hybrid marker. A computing device obtains a three-dimensional image of a patient's anatomy and the attached patient tracker; identifies a three-dimensional portion of the hybrid marker within a scan volume; determines a location of the hybrid marker within the scan volume based on the identified three-dimensional portion; tracks the location of the hybrid marker in three-dimensional space using the tracking system while the patient tracker remains fixed to the patient; and registers the three-dimensional image in three-dimensional space based on a known geometric relationship between the location of the hybrid marker within the scan volume and the location of the hybrid marker in three-dimensional space.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.