Applications of vasculature mapping using laser speckle imaging
US9839365B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 24, 2014 |
| Grant date | Dec 12, 2017 |
| Priority date | — |
| Expiry date | Jun 29, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/742
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Systems are provided for detecting the flow of blood or other fluids in biological tissue by illuminating the biological tissue with a coherent light source and detecting time-varying patterns of constructive and destructive interference in light received from portions of the biological tissue by an imager. The movement of blood cells and other light-scattering elements in the biological tissue causes transient, short-duration changes in light emitted from portions of the biological tissue proximate to the moving blood cells or other scatterers. High-frequency sampling or other high-bandwidth processing of light intensities detected by an imager could be used to determine the flow of blood or other fluids at a plurality of points in the biological tissue, to detect and/or localize a tumor in the biological tissue, to determine the location, pattern, width, or other properties of vasculature in the biological tissue, or to provide information for some other application(s).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.