球囊导管远端气压反馈测试系统设计与实验  

Design and experiment of air pressure test system with distal feedback for balloon catheter

作　　者：叶旭时 王东 耿欢欢 张攀 王恩博 梁军生[1,3] YE Xushi;WANG Dong;GENG Huanhuan;ZHANG Pan;WANG Enbo;LIANG Junsheng(Key Laboratory for Micro/Nano Technology and System of Liaoning Province,Dalian University of Technology,Dalian 116024,China;Department of Hepatobiliary Surgery,Dalian Municipal Central Hospital Affiliated of Dalian Medical University,Dalian 116033,China;Key Laboratory for Precision and Non-traditional Machining Technology of Ministry of Education,Dalian University of Technology,Dalian 116024,China)

机构地区：[1]大连理工大学辽宁省微纳米技术及系统重点实验室,辽宁大连116024 [2]大连医科大学附属大连市中心医院普通外科,辽宁大连116033 [3]大连理工大学精密与特种加工技术教育部重点实验室,辽宁大连116024

出　　处：《传感器与微系统》2024年第11期94-98,共5页Transducer and Microsystem Technologies

基　　金：中央高校基本科研业务费项目(DUT22YG214)。

摘　　要：为实现对胃部等特定高敏感远距离环境的气压测试,开发了一种球囊导管远端气压反馈测试系统,安装球囊导管使远端的测压球囊置于气体环境中反馈远端环境气压,利用STM32单片机和XG⁃ZP6847D压力传感器模块采集测压球囊气压,并根据测压球囊气压反馈特性计算得到环境气压。为了验证测压系统的可靠性和精准度,搭建模拟实验平台进行测压球囊静态气压反馈特性标定和动态测压实验,结果表明:测压系统测量值与环境气压实际值具有较高一致性,响应时间在200 ms之内,绝对误差在0.15 kPa以下,测压系统可实时精确测量远端环境气压。In order to realize the air pressure test for the specific highly sensitive and long⁃distance environment such as stomach,an air pressure test system with distal feedback from a balloon catheter is developed.The balloon catheter is installed to make the distal manometric balloon be placed in the air environment to feedback the distal ambient air pressure.The air pressure of manometric balloon is collected by STM32 MCU and XGZP6847D pressure sensor module.The ambient air pressure is obtained by calculation according to the air pressure feedback characteristic of the manometric balloon.In order to verify the reliability and precision of the air pressure test system,a simulation experimental platform is built for static air pressure feedback characteristic calibration of the manometric balloon and dynamic air pressure test experiment.The results show that the measured value of the air pressure test system has high consistency with the actual value of the ambient air pressure,the response time is within 200 ms,and the absolute error is below 0.15 kPa.The air pressure test system can accurately test the distal ambient air pressure in real⁃time.

关 键 词：球囊导管 气压测试 STM32单片机 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置] TP274[自动化与计算机技术—控制科学与工程]