The four stages of development： a historical prospective of external counterpulsation

作     者：John CK Hui Zhen-Sheng Zheng 

作者机构：Cardiology DeptState University of New YorkStony BrookNew Yorkand Vasomedical IncWestburyNew YorkUSA The Key Laboratory of Assisted CirculationHealth Ministry of China and Cardiology DeptThe First Affiliated HospitalSun Yet-sen UniversityGuangzhouChina 

出 版 物：《Journal of Geriatric Cardiology》 (老年心脏病学杂志（英文版）)

年 卷 期：2010年第7卷第2期

页      面：74-78页

核心收录：

学科分类：082803[工学-农业生物环境与能源工程] 08[工学] 0828[工学-农业工程] 0835[工学-软件工程] 081202[工学-计算机软件与理论] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

主　　题：历史 体外 技术开发 医疗器械 创新思想 专利申请 应用程序 数据收集 

摘      要：There are four stages in medical device *** beginning starts with some new understanding of physiological concepts which evolve into the formation of an innovative idea. The second stage is the technical development phase,from idea to the development of a design to technical reality. At this stage,capital funding and patent applications for the development are necessary but they are not considered here. The third stage is experimental and clinical studies,a data gathering phase to provide evidence of safety and effectiveness of the applications of the device.