| 静补型无创食管曲张静脉测压仪的设计 |
| |
| 引用本文： | 吴建锋,黄挚雄,罗安,朱炼.静补型无创食管曲张静脉测压仪的设计[J].计算机测量与控制,2005,13(7):737-739. |
| |
| 作者姓名： | 吴建锋 黄挚雄 罗安 朱炼 |
| |
| 作者单位： | 中南大学,信息科学与工程学院,湖南,长沙,410083;湖南大学,电气与信息工程学院,湖南,长沙,410082 |
| |
| 基金项目： | 卫生部科研基金资助项目(98-1-111) |
| |
| 摘 要： | 为了克服穿刺测压的弊端，基于无创性测压原理，提出了一种新型无创食管曲张静脉压力测定仪；在气路中采用压力平衡室，在电路中采用DSP芯片作为采样和控制核心，在信号采样通道中使用一系列软硬件抗干扰技术；该系统运行稳定，测压过程中可有效排除心跳、呼吸等外界干扰；实验表明，该仪器能够比较精确地测定食管曲张静脉压，可应用于临床预测曲张静脉的出血。
|
| 关 键 词： | 无创测压 TMS320LF2407 传感器 仪用放大器 |
| 文章编号： | 1671-4598(2005)07-0737-03 |
| 修稿时间： | 2004年8月11日 |
Design of Noninvasive Measurement of the Pressure of Esophageal Varices with Static Compensation |
| |
| Wu Jianfeng,Huang Zhixiong,Luo An,ZHU Lian.Design of Noninvasive Measurement of the Pressure of Esophageal Varices with Static Compensation[J].Computer Measurement & Control,2005,13(7):737-739. |
| |
| Authors: | Wu Jianfeng Huang Zhixiong Luo An ZHU Lian |
| |
| Affiliation: | Wu Jianfeng 1,Huang Zhixiong 1,Luo An 2,Zhu Lian 1 |
| |
| Abstract: | In order to improve the invasive measurement of the pressure, a new device has been proposed on the basis of the the theory of noninvasive one. The air perfusing system consists of a air pump, the device uses DSP as the control and data sampling processor. The antijamming countermeasure by both hardware and software has been used in the sampling passage. The device could suppress the influence caused by breath, heartbeat and so on, it is proved to be reliable. The study demonstrated that the device could be used to measure the patients' variceal pressure and predict the variceal bleeding in clinic. |
| |
| Keywords: | noninvasive measurement of the pressure TMS320LF2407 sensor instrument amplifier |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
