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    • 4. 发明公开
    • SICHERHEITSEINRICHTUNG FÜR EINE EXTRAKORPORALE BLUTBEHANDLUNG
    • SICHERHEITSEINRICHTUNGFÜREINE EXTRAKORPORALE BLUTBEHANDLUNG
    • EP2838579A1
    • 2015-02-25
    • EP13718152.5
    • 2013-04-15
    • Fresenius Medical Care Deutschland GmbH
    • BRANDL, MartinFALKENHAGEN, DieterHARTMANN, Jens
    • A61M1/16A61M1/36
    • A61M1/1603A61M1/16A61M1/1609A61M1/361A61M1/3612A61M1/3621A61M1/3672A61M1/3675A61M2205/18A61M2205/3324A61M2230/202A61M2230/208B01D61/30B01D61/32F04C2270/0421
    • Blood purification device (100, 200) having an extracorporeal blood stream (102, 202) with a blood inflow (103, 203) to a dialysis unit (105, 205) for blood removed from a patient and a blood outflow (104, 204) from the dialysis unit (105, 205) for blood being guided back into the patient, wherein the dialysis unit (105, 205) comprises an inflow (107, 207) for a dialysis solution and a dialysate outflow (108, 208), characterized by a control loop for closed-loop control of the acid/base equilibrium of the blood, wherein bicarbonate is supplied to the blood by means of an aqueous bicarbonate-containing solution, wherein at least one measuring means (124, 124a, 224, 224a) for measuring a blood buffer parameter is associated with the control loop, wherein the blood buffer parameter is selected from the group consisting of bicarbonate concentration and CO
      2 partial pressure, and wherein a signal corresponding to the measured actual value of the blood buffer parameter can be supplied to a closed-loop control apparatus (125, 225), which regulates the actual value of the blood buffer parameter by the supply of the bicarbonate to a predeterminable intended value or intended value range, and at least one pH-measuring means (150a, 250a), which is arranged upstream of the dialysis unit (105, 205) in the extracorporeal blood stream (102, 202), wherein a signal corresponding to the pH-value can be supplied to an alarm apparatus (130, 230), which triggers an alarm signal if a predeterminable pH-value or pH-value range is exceeded or undershot.
    • 装置(100)具有测量从碳酸氢盐浓度和二氧化碳分压组成的组中选出的测量单元的血液缓冲参数的控制电路(124,124a)。 将血液缓冲参数信号的测量值提供给控制装置(125),将血液缓冲参数的实际值调整为预设值范围。 pH测量单元(150a)设置在透析单元(105)的上游,以向报警单元(130)提供pH值信号以触发超过或低于特定pH范围的报警信号。