高强度聚集超声肿瘤治疗系统（超声聚焦刀）是重庆医科大学承担的国家“九五”重点科技攻关项目，历时１１年，在国内外率先进人临床应用。这项研究在世界上首次提出“生物学焦域”的概念，解决了超声治疗中的剂量问题，制订了临床方案，并为确定设备的设计方案提供了根据。该 The high-intensity focused ultrasound treatment system (ultrasonic focussed knife) is the national “Ninth Five-Year Plan” key scientific and technological research project undertaken by Chongqing Medical University. It lasted 11 years and it has advanced clinical application at home and abroad. This study puts forward the concept of “biological focal region” for the first time in the world, solves the dose problem in ultrasound therapy, formulates a clinical plan, and provides a basis for determining the design of the device. The