Focused ultrasound transducers and systems

Details Focused ultrasound transducers and systems Focused ultrasound transducers and systems

A - Human Necessities

61

B

A61B 8/00 (2006.01) A61B 8/12 (2006.01)

Patent

CA 2378049

The present invention provides ultrasound transducers, and imaging assemblies and catheters employing such transducers, that provide improved imaging capabilities. In one embodiment, an ultrasound imaging assembly (50) includes a housing having a distal end (56), a proximal end (57) and a longitudinal axis. A transducer element (54) is included having an outer face. The outer face has a first radius of curvature along a first axis and a second radius of curvature along a second axis. The transducer element is operably attached to the distal end to position the first axis to be generally parallel to the longitudinal axis to provide improved cross-plane resolution.

L'invention concerne des transducteurs à ultrasons ainsi que des ensembles et des cathéters d'imagerie utilisant ces transducteurs qui améliorent les capacités d'imagerie. Dans un mode de réalisation, un ensemble d'imagerie par ultrasons (50) comporte un boîtier pourvu d'une extrémité distale (56), d'une extrémité proximale (57) et d'un axe longitudinal. Un élément de transduction (54) pourvu d'une face extérieure est également prévu. Cette face extérieure comporte un premier rayon de courbure le long d'un premier axe et un second rayon de courbure le long d'un second axe. L'élément de transduction est fixé de manière fonctionnelle à l'extrémité distale de manière à placer le premier axe en position généralement parallèle à l'axe longitudinal afin d'obtenir une meilleure résolution dans le plan transversal.

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