Phased array high-intensity focused ultrasonic detection and therapy system

Abstract

The invention provides a phased array high-intensity focused ultrasonic therapy system which comprises an ultrasonic transmitting device, a signal processing device, a feedback device and a human-computer interaction device. The ultrasonic transmitting device is respectively connected with the signal processing device and the feedback device, and the feedback device is respectively connected with the signal processing device and the human-computer interaction device. The feedback device of the phased array high-intensity focused ultrasonic therapy system can output intensity instructions and frequency instructions to the ultrasonic transmitting device according to a target tissue three-dimensional image, a non-target tissue three-dimensional image and a tissue variable quantity outputted by the signal processing device and a preset tissue variable quantity to control the intensity and the frequency of ultrasonic waves transmitted by the ultrasonic transmitting device to adapt to the intensity needed by therapy or detection, so that target tissues can be damaged, and non-target tissues cannot be damaged in the therapy process.

Description

technical field [0001] The present application relates to the technical field of medical devices, and more specifically, to a phased array high-intensity focused ultrasound detection and treatment system. Background technique [0002] High-intensity focused ultrasound (HIFU) technology is a high-intensity ultrasound therapy technology for tumor treatment that appeared in the 1950s. HIFU treatment technology utilizes the physical characteristics of ultrasonic waves such as tissue penetration and focusability, and the physical and biological effects of focused ultrasonic waves such as high temperature, mechanical vibration, and cavitation, and acts on the target area of ​​human tissue (such as a tumor). It can instantly denature and necrosis the tissue in the target area, so as to achieve non-invasive resection of solid tumors and avoid surgery. It has been clinically used in the treatment of breast cancer, body surface metastatic cancer, abdominal cavity tumors, pelvic cavity...

AI Technical Summary

Problems solved by technology

[0004] The emergence of phased array HIFU can enhance the effect of HIFU in the target area, such as increasing the necrotic area of ​​the target area tissue, or improving the efficiency of action. Through the control of each array element, the amplitude of the driving signal can be increased. The focus area provides more ultrasonic energy, and can also create a more flexible focal area, but this also increases the energy passing through the surrounding tissue of the focus area, causing damage or necrosis of normal tissue (non-target tissue)

In the previously published cases of phased array HIFU, although the ultrasonic detection probe can be used to scan in a two-dimensional plane (such as B-mode ultrasound, color Doppler ultrasound, etc.) to find and locate the target tissue, but this The way the ultrasonic transducer emits ultrasound and the detection probe is separated, it is difficult to identify whether it is high-intensity focused ultrasound sound energy passing through the non-target tissue on the path, so it is still impossible to avoid damage to the non-target tissue

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