Method and apparatus for determining an ultrasound fluid...

A - Human Necessities – 61 – B

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

A61B 8/02 (2006.01) A61B 8/06 (2006.01) A61B 8/12 (2006.01)

Patent

CA 2543077

A method and associated apparatus (64) are disclosed for determining the location of an effective center of fluid flow in a vessel using an ultrasound apparatus (64). Ultrasound energy (30) is propagated along an axis of propagation (32) and projects upon the vessel (16). A Doppler-shifted signal (12) reflected from the fluid (8) in the vessel is received and a set of quantities expressed as a density is derived from the Doppler-shifted signal (12) for each of a set of coordinates, the density being a function of the Doppler shift in frequency associated with each of the coordinates. One of a mean, mode or median is calculated for each of the dimensions of the set of coordinates in conjunction with the density associated therewith. This calculation is repeated throughout the field of view (18) of the vessel (16) to define a centerline (14).

L'invention porte sur un procédé et sur un appareil associé (64) visant à localiser un centre effectif d'écoulement de liquide dans un réceptacle en utilisant un appareil ultrasonore (64). Selon ce procédé, une énergie ultrasonore (30) est propagée le long d'un axe de propagation (32) et projetée sur le réceptacle (16). Un signal à décalage Doppler (12) renvoyé depuis le fluide (8) dans le réceptacle est reçu et un ensemble de quantités exprimées sous forme d'une densité est dérivé du signal à décalage Doppler (12) pour chaque coordonnée d'un ensemble de coordonnées, la densité étant une fonction du décalage Doppler en fréquence associé à chacune des coordonnées. On calcule une moyenne, un mode ou une médiane pour chacune des dimensions de l'ensemble de coordonnées compte tenue de la densité associée. On répète ce calcul dans tout le champ d'observation (18) du réceptacle (16) afin de définir une ligne centrale (14).

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Method and apparatus for determining an ultrasound fluid... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for determining an ultrasound fluid..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for determining an ultrasound fluid... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1357884

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.