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高强度聚焦超声治疗的水处理系统设计 被引量:2

The design of water treatment system of high-intensity focused ultrasound
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摘要 高强度聚焦超声(High Intensity Focused Ultrasound,HIFU)治疗中介质水的纯净度和含气量关系到聚焦超声能量传播效率。本文采用了多级滤芯、多个RO膜并联以及脱气膜方式进行纯净脱气水的制备,既保证了出水流量速度和质量,又使得系统体积没有明显增加。系统采用PIC18f46k22单片机搭建外围电路对系统进行控制,配合流量计实现了入水和出水流量的精确控制。触摸串口屏提供了人机交互界面,上位机基于Qt操控界面实现了远程操作功能,实现了设备自动化。通过测试鉴定该水处理系统制备的水满足HIFU用水的标准,为高强度聚焦超声的应用提供了可靠的介质环境,在聚焦超声治疗领域有着非常广阔的应用前景。 The transmission efficiency of ultrasound energy is highly concerned with the purity and air dissolution of the medium water in high intensity focused ultrasound( HIFU) therapy.A water treatment system based on a series of cascade filters and parallel RO membrane is introduced to purify and degas the water for HIFU in this paper.The system ensures the water preparation effi-ciency and quality without increasing the volume of equipment.Besides,PIC18f46k22 microcomputer and peripheral circuit is adopt-ed to realize the accurate control of water preparation procedure and flow control by cooperating with a flowmeter.The control sys-tem is connected to a touch screen with serial port interface to provide human-computer interaction.Remote manipulation from PC is also implemented based on Qt.Water output from the system is testified to meet the requirements of HIFU water standards.In conclusion,the system provides reliable purified and degassed water of HIFU,which has a promising potential in focused ultrasound applications.
出处 《电子技术应用》 北大核心 2016年第1期34-36,43,共4页 Application of Electronic Technique
基金 国家自然科学基金(81327801)
关键词 水处理 高强度聚焦超声 流量控制 water treatment HIFU flow control
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