Nikkiso Company Limited

Yoshiro Ueda

Hiroshi Nimura

Azusa Mori

Kazuya Sakamoto

A blood purification apparatus includes a blood circuit, a blood purifying device, a driving device, an air bubble detection device, and a connection condition evaluation device. The blood circuit is provided with arterial and venous blood circuits, to which needles are attached at ends thereof. The blood purifying device is connected between the arterial and venous circuits. In a blood purifying treatment after a priming operation, the driving device drives the blood in the arterial blood circuit in a forward direction, and drives the blood in the venous blood circuit in a reverse direction. The air bubble detection device detects air bubbles in a liquid flowing in the arterial and venous blood circuits. The connection condition evaluation device evaluates connection conditions of the needles to the ends of the arterial and venous blood circuits based on the detection by the air bubble detection device.

Blood purification apparatus and method for evaluating connection conditions of needles

A blood purification apparatus includes a blood circuit, a blood purifying device, a first valve, a discharge line, a second valve, and a detection device. The blood circuit has an arterial blood circuit and a venous blood circuit. The first valve opens and closes the venous blood circuit. The second valve opens and closes the discharge line. The detection device detects whether a priming solution is replaced with blood in an end portion of the venous blood circuit at an upstream side from the first valve. The blood purification apparatus automatically turns the first valve from a closed position to an open position and the second valve from an open position to a closed position, respectively, when the detection device detects the priming solution being replaced with the blood.

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Makinohara, Japan

Yoshiro Ueda