Validity of a Disposable Catheter to Drain Urine Overnight in Neurogenic Bladder

Overnight catheter drainage (OCD) is introduced to avoid overdistention of the bladder at night‐time when clean intermittent catheterization proves ineffective for daytime management of neurogenic bladder. We adopted OCD using disposable silicone no‐balloon (DSnB) catheters, with the distal end outside the body opening into diapers. OCD using DSnB catheter, however, had risks of retrograde bacterial contamination. Therefore, in this study, the validity of equipping DSnB catheters with check valves to prevent retrograde bacterial contamination was examined.