一种先心病快速筛选仪的设计与实现

Design and Implementation of a Rapid Screening Instrument for Congenital Heart Disease

先天性心脏病(congenital heart disease,CHD)是常见的先天性畸形,发病率约占0.8%,尽早筛查与诊疗可有效降低出生缺陷率与婴儿病死率。随着国内二胎政策的实施,新生儿数量已呈快速上升趋势,为了支持先心病全面筛查工作,本团队自主研发了一种先心病筛选辅助设备,以辅助医生实现先心病的快速、准确筛查。该仪器由多通道心音传感器、血氧饱和度传感器和Exynos4412嵌入式系统等组成,通过Qt-C++编程实现四通道心音信号同步采集、预处理、血氧饱和度计算、前端交互界面动态显示、数据存储与传输、特征提取和分类识别。该设备一方面使用并行听诊简化筛查过程,另一方面利用智能算法提高筛查速率。筛选仪具有设计简洁、使用方便、筛查时间短、诊断准确率较高等优点,在家庭、社区和基层医院都能提供一定的帮助。

Congenital heart disease(CHD)is a common congenital malformation with an incidence of up to 0.8%.Early diagnosis and treatment can effectively reduce the rate of birth defects and infant mortality.With the implementation of the two-child policy in China,the number of newborns has shown a rapid upward trend.In order to support the comprehensive screening of congenital heart disease,we independently develop an auxiliary screening device for congenital heart disease to assist doctors to realize rapid and accurate screening of congenital heart disease.The device consists of multi-channel heart sound sensor,blood oxygen saturation sensor and Exynos4412 embedded system.It realizes four-channel heart-sound signal synchronization acquisition,pre-processing,SpO2 calculation,front-end interactive interface dynamic display,data storage and transmission,feature extraction and classification identification through Qt-C++programming.On the one hand,the device uses parallel auscultation to simplify the screening process,on the other hand,it uses intelligent algorithm to improve the screening rate.With the advantages of simple design,convenient use,short screening time and high diagnostic accuracy,the screening instrument can provide certain help in families,communities and basic hospitals.