摘要:
The present invention provides a MRI-guided ultrasound therapeutic unit, includes a static field magnet adapted to apply a static magnetic field in a magnetic resonance volume within a predetermined zone; at least one ultrasound energy applicator adapted to apply energy to a predetermined energy applying zone; and a moving and positioning device of the ultrasound energy applicator adapted to make the energy applying zone intersect with the magnetic resonance volume at the therapeutic targeted region. In the unit, the static field magnet is two-end-open and side-face-open, the side face opening is open upwards or downwards, and the moving and positioning device of the ultrasound energy applicator is near and outside of the side face opening. According to the invention, the space limitation of the moving and positioning device of the ultrasound energy applicator is deceased, at the same time, the non-magnetic demand of the moving and positioning device of the ultrasound energy exchanger is deceased largely, it especially resolves the problem that magnetic field generated by the working current of the energy exchanger power line disturbs the MRI system.
摘要:
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.
摘要:
A high intensity focused ultrasound therapeutic system guided by an imaging device is provided and includes an ultrasound therapeutic applicator which contains an ultrasound transducer (8), a therapeutic bed (11), on which a patient (17) lies, and an imaging device used for imaging a diseased tissue (3). Wherein, the imaging device is a non-ultrasound imaging device with two-dimensional imaging function. The ultrasound transducer (8) with the diameter of focal core (23) ranging from 0.1mm to 5mm, preferably, ranging from 0.2mm to 2mm, in a biological focal region (2) located in the diseased tissue (3) is adopted. The non-ultrasound imaging device is a CT or an MRI device with two-dimensional imaging function. The present invention can image the target accurately, so it can be applied to all kinds of complicated surgeries and has good therapeutic effects.