MRI guiding high intensity focusing ultrasonic therapeutic system

Abstract

A MRI guided high-intensity focused ultrasonic therapy system is composed of a MRI unit including the first therapeutic bed and a high-intensity focused ultrasonic therapy unit having an ultrasonic transducer and a moving-locating mechanism with a supporting rod able to be extended in the gap of said MRI unit during therapy and connected to said ultrasonic transducer.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and relates to an ultrasonic treatment system, in particular to an MRI-guided high-intensity focused ultrasonic treatment system. Background technique [0002] Focused ultrasound treatment in the prior art mostly adopts B-ultrasound equipment for positioning and monitoring treatment, and adopts this B-ultrasound equipment for monitoring and treatment. Ultrasound system still has certain limitations in its visible area; 2. The observable depth of ultrasound images is limited, and bony substances have a particularly large impact on the images, and the tissue behind the bone can hardly be observed, and there are artifacts; 3. Ultrasound images The ability to identify tissue boundaries is poor, especially for small tumors and deep tumors. [0003] In addition, an important application in biology and medicine is the MRI (Magnetic Resonance Imaging Magnetic Resonance Imaging) device, which can...

AI Technical Summary

Problems solved by technology

[0002] Focused ultrasound treatment in the prior art mostly adopts B-ultrasound equipment for positioning and monitoring treatment, and adopts this B-ultrasound equipment for monitoring and treatment. Ultrasound system still has certain limitations in its visible area; 2. The observable depth of ultrasound images is limited, and bony substances have a particularly large impact on the images, and the tissue behind the bone can hardly be observed, and there are artifacts; 3. Ultrasound images Poor ability to identify tissue boundaries, especially for small tumors and deep tumors

[0008] The above-mentioned patents are all combined treatment systems using MRI devices and ultrasonic treatment equipment. These treatment systems mainly have the following disadvantages: 1) Since the movable height under the MRI treatment bed is very limited, ultrasonic transducers are arranged under it for multiple coordinates. Exercise is very difficult, and it is even more difficult to arrange a complex motion positioning mechanism. After the motion positioning mechanism is arranged under the treatment bed of the MRI hole, it occupies the limited movement space of the ultrasonic transducer, thus affecting the quality of the treatment process. 2) These systems require high-demand non-magnetization design and processing of the ultrasonic transducer and its motion positioning device, which increases technical complexity and cost; 3) Driven by the motion positioning mechanism, the ultrasonic transducer The device can only carry out limited movement, and cannot adapt to the multi-directional requirements of the treatment of tumors and other diseases, and because the ultrasonic transducer cannot rotate, the ultrasonic transducer can only perform bottom-up treatment under the treatment bed. There is nothing that can be done if the treatment is performed from top to bottom; 4) It is difficult for the operator to perform assisted manual operation, which is not conducive to the operator's clinical observation

Images