Peritoneal lavage or flush is the "rapid" infusion and drainage of peritoneal dialysis solution with the purpose of removing blood, fibrin, debris or spent dialysate from the peritoneal cavity or catheter. The dwell time is minimal or non-existent.

A type of tubing connector with threaded fittings for a secure connection and added leverage for a seal disconnect. The concept for these adapters was developed by Hermann Wulfing Luer, a German medical instrument maker whose name still defines this unique design.