Doppler ultrasound method and apparatus for monitoring blood flow
US7537568B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 1, 2003 |
| Grant date | May 26, 2009 |
| Priority date | — |
| Expiry date | Feb 25, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S15/8988
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A pulse Doppler ultrasound system and associated methods are described for monitoring blood flow. 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 and characterization are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.