System and method for locating medical devices in vivo using...

A - Human Necessities – 61 – B

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A61B 8/12 (2006.01)

Patent

CA 2759228

A system for locating a medical device in vivo includes an ultrasound scanner having a scan head and being capable of operating in a 3D Doppler mode, a medical device having a distal end configured to be inserted in vivo, and a vibratory element coupled to the medical device to induce vibrations in the first distal end. When the scan head is positioned over the distal end inserted in vivo to obtain scan data of the tissue volume, the ultrasound scanner is configured to generate 3D Doppler data in the form of a plurality of slices from the scan data and to identify a location of the distal end within the slices based upon localized data within one of the slices meeting predetermined criteria.

La présente invention concerne un système de localisation d'un dispositif médical in vivo, comprenant un scanner à ultrasons doté d'une tête de balayage et étant capable de fonctionner en mode Doppler 3D. Une extrémité distale dudit dispositif est conçue pour être insérée in vivo, et un élément vibratoire dudit dispositif est accouplé au dispositif médical pour induire des vibrations dans la première extrémité distale. Lorsque la tête de balayage est positionnée sur l'extrémité distale insérée in vivo pour obtenir des données de balayage du volume du tissue, le scanner à ultrasons est conçu pour produire des données de Doppler 3D sous la forme d'une pluralité de tranches provenant des données de balayage et pour identifier un emplacement de l'extrémité distale dans lesdites tranches sur la base des données localisées dans l'une des tranches répondant aux critères prédéfinis.

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