摘要
目的:探讨高强度聚焦超声(HIFU)治疗设备的安全监控方法,消除在使用时对人体产生的潜在危险,提高其安全性和有效性。方法:通过分析HIFU设备"浅表组织高强度聚焦超声治疗系统"的系统特征和失效危险,设计基于增强型并行端口(EPP)模式的并口监控模块,使得数据能够在PC机和下位机间双向流动,并设计上位机看门狗和实时功率监测模块。结果:监控模块能够及时处理各种异常状况,保持系统的安全稳定运行。防止由于上位机故障或线缆故障导致的控制失效,并且上位机程序能够实时监控功率源实时输出功率。结论:通过分析HIFU设备的系统特征和失效危险,针对性地设计了基于EPP模式的监控模块,有效的提高了超声治疗系统的可靠性和安全性。
Objective: High Intensity Focused Ultrasound (HIFU) is classified as the third category medical instruments, which means it require much more attention on its safety to patient. Methods: To achieve this goal, a safety monitor system was applied on "High Intensity Focused Ultrasound therapeutic equipment for Shallow tissue". To design parallel port-based safety monitor method for high intensity focused ultrasound therapeutic system and make the bidirectional data flow. Results: By using parallel computation of FPGA, the safety monitor independently monitor several modules of the "Ultrasound therapeuticequipment", and handies real-function. A new-E-PP-Parallel-port basic- intelligent watctlclog was introducing to monitor PC working state. Conclusion: The safety monitor system enhances the safety and reliability of the equipment, and provides helpful information for malfunction diagnose.
出处
《中国医学装备》
2013年第9期6-9,共4页
China Medical Equipment