Doppler ultrasound method and apparatus for monitoring blood flow and detecting emboli
US6524249B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 6, 2000 |
| Grant date | Feb 25, 2003 |
| Priority date | — |
| Expiry date | Jan 1, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B8/0816
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A pulse Doppler ultrasound system and associated methods are described for monitoring blood flow and detecting emboli. A graphical information display includes simultaneously displayed depth-mode and spectrogram displays. The depth-mode display indicates the various positions along the ultrasound beam axis at which blood flow is detected. These positions are indicated as one or more colored regions, with the color indicating direction of blood flow and varying in intensity as a function of detected Doppler ultrasound signal amplitude or detected blood flow velocity. The depth-mode display also includes a pointer whose position may be selected by a user. The spectrogram displayed corresponds to the location identified by the pointer. Embolus detection is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.