A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 8/00 (2006.01) A61B 10/00 (2006.01) G01S 7/529 (2006.01) G01S 15/89 (2006.01)
Patent
CA 2341099
A hand held ultrasonic instrument (87) is provided in a portable unit which performs both B mode and Doppler imaging. The instrument includes a transducer array (10) mounted in a hand-held enclosure, with an integrated circuit transceiver connected to the elements of the array (10) for the reception of echo signals. A digital signal processing circuit (40) performs both B mode, and Doppler estimation, as well as advanced functions such as assembly of multiple zone focused scan lines, synthetic aperture formation, depth dependent filtering, speckle reduction, flash suppression, and frame averaging.
L'invention concerne un instrument à main à ultrasons (87) prévu dans un groupe portatif assurant l'imagerie mode B et Doppler. Ledit instrument comporte un réseau de transducteurs (10) monté dans une enceinte portative, un émetteur/récepteur à circuit intégré étant connecté aux éléments du réseau (10) de sorte que les signaux d'écho soient reçus. Un circuit de traitement de signaux numériques (40) assure une estimation mode B et Doppler, ainsi que des fonctions avancées telles que l'assemblage de lignes de balayage concentrées à zones multiples, la formation d'ouverture synthétique, le filtrage en fonction de la profondeur, la réduction de speckle, la suppression des flash et le moyennage de trame.
Doherty Terrence R.
Hwang Juin-Jet
Jones Geoffrey H.
Pflugrath Lauren S.
Fetherstonhaugh & Co.
Sonosite Inc.
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