Tracking marker support structure and surface registration methods employing the same for performing navigated surgical procedures
US11291509B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 15, 2019 |
| Grant date | Apr 5, 2022 |
| Priority date | — |
| Expiry date | Jul 15, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2560/0233
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Devices and methods are provide for facilitating registration and calibration of surface imaging systems. Tracking marker support structures are described that include one or more fiducial reference markers, where the tracking marker support structures are configured to be removably and securely attached to a skeletal region of a patient. Methods are provided in which a tracking marker support structure is attached to a skeletal region in a pre-selected orientation, thereby establishing an intraoperative reference direction associated with the intraoperative position of the patient, which is employed for guiding the initial registration between intraoperatively acquired surface data and volumetric image data. In other example embodiments, the tracking marker support structure may be employed for assessing the validity of a calibration transformation between a tracking system and a surface imaging system. Example methods are also provided to detect whether or not a tracking marker support structure has moved from its initial position during a procedure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.