Stereotactic optical navigation
US6275725A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 5, 1997 |
| Grant date | Aug 14, 2001 |
| Priority date | — |
| Expiry date | May 5, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V2201/03
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A system for quantitative computer graphic determination of positions on a patient's anatomy and positions on associated equipment located near the patient's anatomy in relation to anatomical data, as from CT or MR scanning. A first camera produces a quantitative electronic readout of its field-of-view which provides a determination of relative spacial coordinates of uniquely identifiable points in its field-of-view. A second camera produces a quantitative electronic readout of its field-of-view which provides a determination of relative spacial coordinates of uniquely identifiable points in its field-of-view. The two cameras are located with respect to the patient's anatomy and the associated equipment so that the fields-of-view of the cameras include both the patient's anatomy and the equipment, but are taken from different directions. A body marker is positioned with respect to the patient's anatomy at a known position relative to said patient anatomy. The body marker has known coordinates in a stereotactic coordinate system that is established relative to the patient's anatomy so that the coordinates of all identifiable points in the fields of view of the two cameras can be det…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.