Referencing or registering a patient or a patient body part in a medical navigation system by means of irradiation of light points
US7577474B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 22, 2005 |
| Grant date | Aug 18, 2009 |
| Priority date | — |
| Expiry date | Aug 30, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/3937
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention relates to a method and system for its implementation for referencing or registering a body part in a camera-assisted, medical navigation system, comprising: manually manipulating a light beamer so as to scan a light beam produced thereby across a surface of the body part to sequentially reflect light off the surface of the body part at a plurality of locations; sequentially detecting the light reflected from the surface of the body part at the plurality of locations; determining three-dimensional spatial positions of the plurality of locations based on the detected light; and referencing or registering the body part to medical image data based on the three-dimensional spatial positions of the plurality of locations and surface data determined from the medical image data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.