[1]景达,罗二平,申广浩,等.临床患者体内金属异物快速排查定位装置设计[J].深圳大学学报理工版,2009,26(4):337-342.
 JING Da,LUO Er-ping,SHEN Guang-hao,et al.Design of a fast locating and detecting device for metallic foreign body in clinical operation[J].Journal of Shenzhen University Science and Engineering,2009,26(4):337-342.
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临床患者体内金属异物快速排查定位装置设计()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第26卷
期数:
2009年4期
页码:
337-342
栏目:
生物医学工程
出版日期:
2009-10-31

文章信息/Info

Title:
Design of a fast locating and detecting device for metallic foreign body in clinical operation
文章编号:
1000-2618(2009)04-0337-06
作者:
景达1罗二平1申广浩1刘则毅2汤池1徐巧玲1
1)第四军医大学生物医学工程系,西安710032;
2)深圳大学数学与计算科学学院,深圳518060
Author(s):
JING Da1LUO Er-ping1SHEN Guang-hao1LIU Ze-yi2TANG Chi1and XU Qiao-ling1
1)Biomedical Engineering Department,Fourth Military Medical University,Xi’an 710032,P. R. China
2)College of Mathematics and Computational Science,Shenzhen University,Shenzhen 518060,P.R.China
关键词:
临床金属异物排查排查定位磁通门传感器非铁磁性金属数字信号处理器
Keywords:
clinical metallic foreign body detectiondetection and locationfluxgate sensornonferromagneticsdigital signal processor
分类号:
TP 212.13;R 608
文献标志码:
A
摘要:
为实现患者体内金属异物的准确定位及术前术后手术器械的快速排查,设计了基于磁通门梯度测量方式的便携式装置.提出基于剩磁效应的铁磁性金属定位方法和基于电涡流效应的非铁磁性金属定位模式,用以解决传统磁通门无法感应非铁磁性金属的问题.采用改进的跑道型磁芯结构,选择钴基非晶合金Metglas2705M作为磁芯材料,以数字信号处理器为核心进行谐波提取和互相关滤波处理,提高了磁通门性能.通过建立信息数据库使该装置具有一定深度分析能力.15例异物患者临床实验证明,该技术便捷有效,有良好的临床应用前景.
Abstract:
To implement a fast location of metallic foreign body in human body and fast preoperative or postoperative detection of surgical instruments,a portable device based on gradient measurement of fluxgate sensors was designed. Two working modes based on remnant magnetic effect and eddy current effect were proposed for locating two different kinds of metal,thereby solving the problem that nonferromagnetics could not be sensed by fluxgate. Metglas ribbon and modified race-track core were chosen and digital signal processor was utilized to implement harmonic extraction and cross correlation algorithm,which could mean a better fluxgate performance. Database of the depth information was established to provide the ability of analyzing the depth in human body. The locating experiments of 15 foreign body patients has demonstrated the effectiveness of the proposed portable device in clinic applications.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2009-04-14;修回日期:2009-05-31
基金项目:国家自然科学基金资助项目(50377044);全军医药卫生科研基金资助项目(08G114)
作者简介:景达(1985-),男(汉族),吉林省辽源市人,第四军医大学硕士研究生.E-mail:jingdaasq@126.com
通讯作者:罗二平(1959-),男(汉族),第四军医大学教授、博士生导师.E-mail:luoerping@fmmu.edu.cn
更新日期/Last Update: 2009-11-08