Apparatus for extracorporeal blood treatment

An apparatus for extracorporeal blood treatment, comprising:

• a treatment unit;
• a blood circuit coupled to the treatment unit and comprising a blood removal line and a blood return line connectable to a vascular system of a patient;
• a blood pump coupled to a pump section of the blood circuit to deliver a blood flow rate;
• an effluent line connected to the treatment unit;
• an effluent pump coupled to a pump section of the effluent line to deliver an effluent flow rate;
• a source of a diuretic coupled to a diuretic pump and connected to the blood circuit or connectable to the vascular system of the patient, wherein the diuretic pump is configured to deliver a diuretic flow rate;
• a source of an osmotic agent coupled to an osmotic agent pump and connected to the blood circuit or connectable to the vascular system of the patient, wherein the osmotic agent pump is configured to deliver an osmotic agent flow rate;
• a control unit connected to the blood pump, the diuretic pump and the osmotic agent pump and configured to receive an input patient parameter and/or an input apparatus parameter;
• wherein, during an extracorporeal blood treatment, the control unit is configured to control the diuretic pump and/or the osmotic agent pump as a function of the input patient parameter and/or as a function of the input apparatus parameter.

An apparatus for extracorporeal blood treatment, comprising:

• a treatment unit;
• a blood circuit coupled to the treatment unit and comprising a blood removal line and a blood return line connectable to a vascular system of a patient;
• a blood pump coupled to a pump section of the blood circuit to deliver a blood flow rate;
• an effluent line connected to the treatment unit;
• an effluent pump coupled to a pump section of the effluent line to deliver an effluent flow rate;
• a source of a diuretic coupled to a diuretic pump and connected to the blood circuit or connectable to the vascular system of the patient, wherein the diuretic pump is configured to deliver a diuretic flow rate;
• a source of an osmotic agent coupled to an osmotic agent pump and connected to the blood circuit or connectable to the vascular system of the patient, wherein the osmotic agent pump is configured to deliver an osmotic agent flow rate;
• a sensor;
• a control unit operably connected to the sensor, the blood pump, the diuretic pump and the osmotic agent pump, the control unit configured to receive an input patient parameter and an input apparatus parameter, the sensor configured to detect measured values of the input patient parameter and/or the input apparatus parameter;
• wherein the input patient parameters detected by the sensor comprise one or more of a heart rate, a blood pressure, a urine output, a consciousness level, a body weight, a creatinine value, a hematocrit value, and a level of electrolytes;
• wherein the control unit is configured to receive a prescription value of one or more of the following input apparatus parameters:
• blood flow rate, effluent flow rate, and filtration flow rate;
• and the sensor is configured to detect the measured values of one or more of the following input apparatus parameters:
• blood flow rate, effluent flow rate, filtration flow rate, access pressure, and return pressure;
• wherein the control unit is configured to check the access pressure and the blood pressure at the start of the extracorporeal blood treatment and perform the following procedure:
• when, at the start of the extracorporeal blood treatment, the access pressure is above a selected high access pressure threshold and the blood pressure is above a selected blood pressure threshold or within a selected access pressure range, the control unit is configured to operate one or more of:
• the blood pump to increase the blood flow rate,
• the effluent pump to increase the effluent flow rate,
• the diuretic pump to start or increase the diuretic flow rate;
• when, at the start of the extracorporeal blood treatment, the access pressure is below a selected low access pressure threshold and the blood pressure is below a selected blood pressure threshold, the control unit is configured to operate one or more of:
• the blood pump to decrease the blood flow rate,
• the effluent pump to decrease the effluent flow rate,
• the osmotic agent pump to start or increase delivery of the osmotic agent,
• the diuretic pump to start or increase the diuretic flow rate.