Objective To invent a stainless steel twist traction ring and to discuss its effectiveness in the quality inspection of luminal devices cleaning. Methods A stainless steel twist traction ring is invented and used for inspection of the cleaning quality of luminal devices. Its effectiveness in quality inspection of luminal devices cleaning was evaluated by comparing with the effect of visual + light source magnification method,the probe gauze method,and the ATP biofluorescence method. Results In the inspection of the cleaning quality of luminal devices A,there were differences in the cleaning quality pass rates between the twist traction ring method,the visual + light source magnification method and the ATP biofluorescence method,respectively,and the differences were statistically significant（P<0.010）. In the pair-wise comparisons,the visual inspection + magnification method had the highest pass rate,with a statistically significant difference in pass rate from the other 2 groups（P<0.017）. There were no statistically differences in pass rates between the twist traction ring method and the ATP biofluorescence method（P>0.017）. In the cleaning quality inspection of luminal devices B,there were statistically significant differences in pass rates of the 4 cleaning quality inspection methods（P<0.01）,and in the pair-wise comparisons,the visual inspection + magnification method had the highest pass rate,with a statistically significant difference in pass rate from the other 3 groups（P<0.008）. Conclusion The stainless steel twist traction ring method can detect unqualified devices that cannot be detected by visual + light source magnification methods in the quality inspection of luminal devices cleaning. Its detection is comparable to that of the probe gauze method and the ATP biofluorescence method. But its operation is easier and more widely applicable than the probe gauze method,and it saves money compared to the ATP biofluorescence method.
