BLOOD PURIFICATION APPARATUS AND METHOD OF CONFIRMING CIRCUIT CONTINUITY FAILURE THEREOF

摘要

A blood purification apparatus and method of confirming any circuit continuity failure thereof that would ensure unfailing confirmation as to whether or not the connection of circuit constituent elements to circuit is appropriate. A return blood valve (19) disposed in a return blood circuit (9) for returning blood having been treated by a first blood treating unit (1) into the body of a patient is closed so as to realize a blocked state with respect to a blood circuit including a blood introduction circuit (8), the return blood circuit (9) and a delivery circuit (10) for delivering unwanted blood components from the first blood treating unit (1). A first pump (4) disposed in the delivery circuit (10) is normally rotated, and an air pump (70) connected to the blood introduction circuit (8) and the return blood circuit (9) is reversely rotated, so that air is expelled from the blood circuit to thereby generate a negative pressure in the blood circuit and the first blood treating unit (1). At the point of time when the negative pressure reaches a first preset pressure, connection between the blood circuit and the first blood treating unit (1) is confirmed.;COPYRIGHT KIPO & WIPO 2010