Acoustic coupler using an independent water pillow with...

A - Human Necessities – 61 – B

Patent

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A61B 8/14 (2006.01)

Patent

CA 2575687

A water pillow for coupling acoustic energy into tissue. The pillow is configured to conform to a transducer to facilitate coupling of ultrasound energy. The pillow includes a pouch that accommodates the transducer to enable a snug fit between the pillow and the transducer. The pillow includes a liquid inlet and outlet to facilitate liquid circulation for cooling, is biocompatible, has a low attenuation, is conformal to the shape of the transducer, facilitates use of an adjustable pressure to achieve various standoffs, includes an integral pouch to facilitate an interference fit to the transducer, facilitates water circulation for cooling, is sterilizeable, and is disposable. Either the surface adapted to conform to a tissue interface, or the surface of adapted to conform to the transducer, or both, can include pores configured to weep liquid to facilitate acoustic coupling.

L'invention concerne un coussin d'eau pour le couplage d'énergie acoustique dans du tissu, s'adaptant à un transducteur pour faciliter le couplage d'énergie ultrasonore. Le coussin comprend une poche de logement pour le transducteur, permettant un ajustement serré entre le coussin et le transducteur. Le coussin comprend une entrée de liquide et une sortie de liquide facilitant la circulation de liquide pour le refroidissement, il est biocompatible, présente un affaiblissement peu élevé, s'adapte à la forme du transducteur et facilite l'utilisation d'une pression réglable pour l'observation de différentes distances d'écartement, comprend une poche intégrée pour faciliter un assemblage en ajustement serré avec le transducteur, facilite la circulation d'eau pour le refroidissement, est stérilisable et est jetable. On peut prévoir des pores sur la surface s'adaptant à une interface tissulaire, ou sur la surface s'adaptant au transducteur, ou sur les deux, ces pores visant à laisser sourdre du liquide pour faciliter le couplage acoustique.

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