Abstract: The present teachings provide a blood purification apparatus including a drain-liquid temporary chamber that stores drain liquid drained from a blood purifier that purifies blood of a patient, a first drain-liquid drain line through which the drain liquid flows into the drain-liquid temporary chamber, a second drain-liquid drain line through which the drain liquid stored in the drain-liquid temporary chamber is drained to an outside of the apparatus, a draining unit provided to the second drain-liquid drain line and that drains the drain liquid stored in the drain-liquid temporary chamber to the outside of the apparatus, a remaining-amount-detecting unit that detects an amount of drain liquid remaining in the drain-liquid temporary chamber, a judging unit that judges whether or not a reference remaining amount is reached by the drain liquid in the drain-liquid temporary chamber from a result of detection by the remaining-amount-detecting unit, and a control unit that controls the draining unit.

Abstract: An adjusting device for a pressure detector that is capable of arbitrarily adjusting the initial position of a membrane member is provided. An adjusting device for a pressure detector includes a control unit that sequentially executes a first step in which a predetermined adjusting pressure is generated in a first zone by activating a pump with the first zone being closed by the closing of an electromagnetic valve, and a second step in which a gas-phase portion, the first zone, and a second zone are combined into a closed space by disabling the closing of the electromagnetic valve; and an adjusting-pressure-acquiring unit that acquires the adjusting pressure to be generated in the first step, the adjusting pressure being acquired in accordance with a relationship between a pressure and a capacity of the first zone in the first step and a pressure and a capacity of the combination of the gas-phase portion, the first zone, and the second zone in the second step.

Abstract: A blood purification device includes a chamber, a liquid feed line, an air introduction unit, a liquid level adjustment unit, and a control unit. The chamber is provided on a blood circuit for extracorporeally circulating patient's blood and introduces purified plasma obtained by purifying plasma separated by a plasma separator provided on the blood circuit, or a replenishing liquid for replenishing the plasma separated by the plasma separator, into the blood circuit. The liquid feed line is capable of sending the purified plasma or the replenishing liquid to the chamber. The air introduction unit is capable of introducing air into the liquid feed line. The liquid level adjustment unit is capable of adjusting a liquid level height in the chamber.

Abstract: A blood purification device includes a blood circuit for extracorporeally circulating blood of a patient; a liquid supply line for supplying a supply liquid to a blood purifier provided on the blood circuit or to the blood circuit a peristaltic liquid supply pump provided on the blood circuit or on the liquid supply line; a peristaltic waste liquid pump provided on a waste liquid line through which a waste liquid is discharged from the blood purifier; a water balance amount detection unit for detecting a water balance amount of the supply liquid and the waste liquid; and a water balance amount control unit that corrects one or both of pump speeds of the liquid supply pump and the waste liquid pump so that the water balance amount detected by the water balance amount detection unit matches a target water balance amount.

Abstract: A blood purification device includes a blood circuit for extracorporeally circulating blood of a patient; a liquid supply circuit for supplying a supply liquid to the blood circuit or to a blood purifier provided on the blood circuit and a waste liquid circuit for discharging the waste liquid from the blood purifier. Each of the blood circuit, the liquid supply circuit and the waste liquid circuit comprises a flexible tube. The blood purification device comprises a tube identification unit that performs a tube identification process for identifying a tube used for the blood circuit, the liquid supply circuit or the waste liquid circuit or determining whether or not there is an abnormality in the tube, based on an amount of liquid sent from a peristaltic pump provided on the blood circuit, the liquid supply circuit or the waste liquid circuit, or pressure fluctuation in the circuit, caused when driving the pump for a predetermined time.

Abstract: A blood purification device includes a blood circuit for extracorporeally circulating blood of a patient; a liquid supply circuit for supplying a supply liquid to the blood circuit or to a blood purifier provided on the blood circuit and a warmer provided on the liquid supply circuit to warm the supply liquid. The warmer is configured to sandwich and hold a warming circuit constituting a part of the liquid supply circuit. The warmer includes a heater provided on a sandwiching-and-holding surface sandwiching and holding the warming circuit. The warmer includes a heater temperature detection unit capable of detecting temperature of the heater.

Abstract: A blood purification device 1 is provided with: a blood circuit 2 for extracorporeally circulating blood of a patient; a blood purifier 3 provided in the blood circuit 2; a gas-liquid separator 24 which is provided in the blood circuit 2 and located on the downward side of the blood purifier 3 in the direction of blood flow, and separates air bubbles contained in blood flowing thereinto; and a liquid surface adjustment unit 6 capable of adjusting the liquid level in the gas-liquid separator 24. The liquid surface adjustment unit 6 performs control such that the liquid level during priming is higher than the liquid level during treatment.

Abstract: The present teachings provide a blood purification apparatus including a drain-liquid temporary chamber that stores drain liquid drained from a blood purifier that purifies blood of a patient, a first drain-liquid drain line through which the drain liquid flows into the drain-liquid temporary chamber, a second drain-liquid drain line through which the drain liquid stored in the drain-liquid temporary chamber is drained to an outside of the apparatus, a draining unit provided to the second drain-liquid drain line and that drains the drain liquid stored in the drain-liquid temporary chamber to the outside of the apparatus, a remaining-amount-detecting unit that detects an amount of drain liquid remaining in the drain-liquid temporary chamber, a judging unit that judges whether or not a reference remaining amount is reached by the drain liquid in the drain-liquid temporary chamber from a result of detection by the remaining-amount-detecting unit, and a control unit that controls the draining unit.

Abstract: An adjusting device for a pressure detector that is capable of arbitrarily adjusting the initial position of a membrane member is provided. An adjusting device for a pressure detector includes a control unit that sequentially executes a first step in which a predetermined adjusting pressure is generated in a first zone by activating a pump with the first zone being closed by the closing of an electromagnetic valve, and a second step in which a gas-phase portion, the first zone, and a second zone are combined into a closed space by disabling the closing of the electromagnetic valve; and an adjusting-pressure-acquiring unit that acquires the adjusting pressure to be generated in the first step, the adjusting pressure being acquired in accordance with a relationship between a pressure and a capacity of the first zone in the first step and a pressure and a capacity of the combination of the gas-phase portion, the first zone, and the second zone in the second step.

Abstract: A blood purification apparatus is provided in which parameters related to ultrafiltration can be changed assuredly and smoothly at the restart of blood purification treatment suspended with the release of the patient from a blood circuit during the blood purification treatment. A blood purification apparatus in which the blood purification treatment that is suspended with the release of the patient from a blood circuit during the blood purification treatment is restartable includes a touch panel (M) capable of displaying, simultaneously on one particular screen, a plurality of variable amounts related to the patients body weight that changes with the suspension and restart of the blood purification treatment.

Abstract: A blood purification apparatus is provided in which parameters related to ultrafiltration can be changed assuredly and smoothly at the restart of blood purification treatment suspended with the release of the patient from a blood circuit during the blood purification treatment. A blood purification apparatus in which the blood purification treatment that is suspended with a release of the patient from a blood circuit during the blood purification treatment is restartable includes a calculating device capable of calculating a variable amount related to a patients body weight that changes with the suspension and restart of the blood purification treatment; and a changing device capable of changing, in accordance with the variable amount calculated by the calculating device, a parameter related to ultrafiltration that is set by a setting device.