基于微型反射式超声测量的肠内容物分类研究

A study on the classification of intestinal contents based on miniature reflection ultrasound

目前的人工肛门括约肌不能感知不同的肠内容物状态,本研究试图利用反射式超声波探测系统分辨不同肠内容物状态,从而为研制具有感知功能的人工肛门括约肌打下研究基础。我们测量了30只巴马香猪直肠内固体、流体、气体和空瘪状态时反射波的个数,实验结果显示,当巴马香猪直肠内为4种不同肠内容物时,形成的反射波数目的差异具有统计学意义(F=1 088,P<0.05)。本研究结果提示,反射式超声波探测系统具有分辨不同肠内容物的作用,可作为研究微型人工肛门括约肌感知肠内容物功能的一种新的有效方法。

The present artificial anal sphincter fails to distinguish the different states of intestinal contents. In this study, we tried to distinguish the intestinal content by using a reflection type ultrasonic system, so as to lay the foundation for the development of artificial anal sphincter with sensing function. We measured the numbers of reflected waves when there were solid, liquid, gaseous or no contents in the recta of 30 Bama Miniature pigs. The results showed significant difference among the numbers of reflected waves of the 4 conditions （F = 1 088, P 〈 0.05）. Our research suggested the reflection-type ultrasonic system could be utilized to distinguish various contents inside the intestinal lumen, thus it might offer a new effective method for the development of artificial anal sphincter with sensing function.