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Abstract
One standard continuous ambulatory peritoneal dialysis (CAPD) infusion/drainage system was found prone to recurrent mechanical failure at the junction between the silastic catheter and the titanium connector. This resulted in slackening and eventual disconnection with attendant risk of bacterial entry and a CAPD-associated peritonitis. A simple “lock-ring” device, when fitted over the catheter-titanium connector junction, afforded a secure joint.