HIFU equipment large focal region forming system and focal region forming method thereof

Abstract

The invention discloses an HIFU equipment large focal region forming system and a focal region forming method thereof. The system comprises a display module which displays a to-be-treated region, andbuilds a focusing region model according to the shape of the to-be-treated region; the path planning module is used for planning a scanning process of a focusing area and carrying out partition focusing to form a focusing path; the focusing calculation module is used for calculating the delay of each array element of the multi-element planar array transducer and the sound intensity reaching a focusing area in each focusing process, and controlling the emission and switching of the array elements of the multi-element planar array transducer; the parameter configuration module is used for configuring parameters required by the focusing process and transmitting the parameters to each multi-element planar array transducer array element; the monitoring module is used for monitoring the focusingprocess in real time; the temperature measuring module is used for measuring the temperature of the focusing area; and the result processing module is used for processing and feeding back a scanningresult after the scanning is finished, feeding back the scanning result to the path planning module, and determining a next focusing area together with the display module. According to the invention,the size and form of the super-large focal region can be regulated, the calculation is fast, and the treatment efficiency of the to-be-treated target region can be improved.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to a system for forming a large focal region of HIFU equipment and a method for forming a focal region thereof. Background technique [0002] High Intensity Focused Ultrasound (HIFU) uses the tissue penetration and energy deposition of ultrasound to focus the ultrasound generated outside the body onto the diseased tissue (therapeutic target, such as tumor tissue) in the body. Effect, thermal effect and cavitation effect, make the tumor area reach a temperature higher than 65 degrees Celsius, perform thermal ablation of tumor tissue, cause coagulation necrosis of the tumor target tissue in the focal area, and the surrounding tissue is minimal or not damaged, achieving non-invasive tumor resection the goal of. [0003] The HIFU system mainly includes a transducer, a control part, a monitoring display part, etc. The control part controls the emission of the transducer, and d...

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Problems solved by technology

[0008] 2. The "big focal area" described in the existing patent is to set the shape of the thermal field according to the size and shape of the target tissue to form multiple focal spot areas. Multiple focal points are formed at one time, and the sound field distribution is calculated according to the pseudo-inverse algorithm. Multiple focal points synthesize a "large focal area" sound field mode, but the focus formation method is calculated using a pseudo-inverse algorithm, which is complex and slow in calculation speed, and cannot achieve real-time formation of a large focal area

[0009] 3. The existing HIFU equipment system does not involve the formation of a large focal area

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