An mri guided high-intensity focused ultrasound therapeutic...

A - Human Necessities – 61 – N

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A61N 7/00 (2006.01)

Patent

CA 2633709

The present invention belongs to the field of ultrasound therapy. A swinging high intensity focused ultrasound therapeutic apparatus of the present invention comprises an ultrasound transducer and its moving positioning mechanism, wherein said moving positioning mechanism use a swinging mechanism which is connected to the ultrasound transducer through a supporting lever. A MRI guided therapeutic system of the present invention comprises such a therapeutic apparatus. With the present invention, the ultrasound transducer can move flexibly, and since the moving positioning mechanism uses a swinging mechanism, the interference generated by the therapeutic system on the MRI apparatus is very small and the quality of ultrasound image obtained thus is good.

La présente invention concerne le domaine de la thérapie par ultrasons. Un appareil thérapeutique à ultrasons focalisé de haute intensité d'oscillation selon la présente invention comporte un transducteur ultrasonore et son mécanisme de positionnement de déplacement, ledit mécanisme de positionnement de déplacement utilisant un mécanisme d'oscillation qui est relié au transducteur ultrasonore via un levier de support. Le système thérapeutique à ultrasons guidé d'imagerie par résonance magnétique selon la présente invention comporte un tel appareil thérapeutique. Grâce à la présente invention, le transducteur ultrasonore peut se déplacer de manière souple, et étant donné que le mécanisme de positionnement de déplacement utilise un mécanisme d'oscillation, l'interférence générée par le système sur l'appareil d'imagerie par résonance magnétique est très faible permettant ainsi une bonne qualité de l'image ultrasonore.

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