Objective      To study the anti-reflux effect of self-made anti-reflux valve in single-balloon enteroscopy examination.       Methods      An anti-reflux valve was made by ourselves with medical rubber glovers for single-balloon enteroscopy examination. One hundred and thirty-four hospitalized patients who were ready to receive the single-balloon enteroscopy examination were randomly divided into a research group and a control group. The patients of the research group underwent single-balloon enteroscopy examination with the self-made anti-reflux valve

and those of the control group underwent single-balloon enteroscopy examination alone. The environmental cleanliness

score and the time cost of environmental clean care were compared between the two groups.       Results      The sex

age

oral or anal routes

examination time and positive results between the research group and control group had no significant difference (

P

0.05). The cleanliness score of the research group (3.31±0.97) was significantly lower than that of the control group (6.85±1.15). The environment cleaning time of the research group (26.0±2.89)min was obviously less than that of the matched group (35.9±3.69 min

P

0.05).       Conclusion      The self-made anti-reflux valve can effectively prevent pollution during single-balloon enteroscopy examination and save the time of environmental clean care. It is convenient and deserves application and promotion.