A syringe pump to deliver heparin to into the blood circuit of a hemodialysis system. The syringe pump is configured to receive a syringe having a plunger movable within a lumen of an elongate tubular member. The syringe pump may include a housing having a recess configured to receive at least a portion of the syringe, a drive mechanism for moving the plunger within the lumen, the drive mechanism comprising a motor and a lead screw; and a grabber mechanism. The grabber mechanism includes a control arm, back panel, and upper and lower control fingers, the control fingers each have first and second ends, and a curved portion therebetween having a width, an interior edge, and an exterior edge, wherein the first ends of the upper and lower control fingers are coupled to the control arm via first and second spring hinges.

The disclosed subject matter relates to extracorporeal blood processing or other processing of fluids. Volumetric fluid balance, a required element of many such processes, may be achieved with multiple pumps or other proportioning or balancing devices which are to some extent independent of each other. This need may arise in treatments that involve multiple fluids. Safe and secure mechanisms to ensure fluid balance in such systems are described.

The disclosed subject matter relates to extracorporeal blood processing or other processing of fluids. Volumetric fluid balance, a required element of many such processes, may be achieved with multiple pumps or other proportioning or balancing devices which are to some extent independent of each other. This need may arise in treatments that involve multiple fluids. Safe and secure mechanisms to ensure fluid balance in such systems are described.

The disclosed subject matter relates to extracorporeal blood processing or other processing of fluids. Volumetric fluid balance, a required element of many such processes, may be achieved with multiple pumps or other proportioning or balancing devices which are to some extent independent of each other. This need may arise in treatments that involve multiple fluids. Safe and secure mechanisms to ensure fluid balance in such systems are described.

The invention relates to a dialysis machine capable of performing ultrafiltration without the need for a dedicated ultrafiltration pump. The system uses a pair of membrane flow balance pumps wherein the operation and/or the volume flow rate of the pumps can be modified during operation to bring about a net movement of dialysate either into or from the dialyser. The direction of flow of the dialysate in the dialyzer is reversible and the dialyzer can comprise two dialysate inlets, one at each end, and two dialysate outlets, one at each end.

A blood purification apparatus that includes a blood circuit including an arterial blood circuit and a venous blood circuit and having a flow route that allows a patient's blood to extracorporeally circulate from a distal end of the arterial blood circuit to a distal end of the venous blood circuit; a blood purifier connected to a proximal end of the arterial blood circuit and to a proximal end of the venous blood circuit and that purifies the blood flowing through the blood circuit; an air-trap chamber connected to the blood circuit and that traps bubbles contained in liquid flowing in the flow route of the blood circuit; and a blood pump provided to the arterial blood circuit and being capable of delivering the liquid within the blood circuit. An upstream bubble-detecting unit attached to a position of the blood circuit on an upstream side with respect to the air-trap chamber and that detects bubbles contained in the liquid flowing in the blood circuit; and a control unit that reduces, at the detection of any bubbles by the upstream bubble-detecting unit, a flow rate of the liquid flowing into the air-trap chamber.

The disclosed subject matter relates to extracorporeal blood processing or other processing of fluids. Volumetric fluid balance, a required element of many such processes, may be achieved with multiple pumps or other proportioning or balancing devices which are to some extent independent of each other. This need may arise in treatments that involve multiple fluids. Safe and secure mechanisms to ensure fluid balance in such systems are described.

The disclosed subject matter relates to extracorporeal blood processing or other processing of fluids. Volumetric fluid balance, a required element of many such processes, may be achieved with multiple pumps or other proportioning or balancing devices which are to some extent independent of each other. This need may arise in treatments that involve multiple fluids. Safe and secure mechanisms to ensure fluid balance in such systems are described.

The disclosed subject matter relates to extracorporeal blood processing or other processing of fluids. Volumetric fluid balance, a required element of many such processes, may be achieved with multiple pumps or other proportioning or balancing devices which are to some extent independent of each other. This need may arise in treatments that involve multiple fluids. Safe and secure mechanisms to ensure fluid balance in such systems are described.

The disclosed subject matter relates to extracorporeal blood processing or other processing of fluids. Volumetric fluid balance, a required element of many such processes, may be achieved with multiple pumps or other proportioning or balancing devices which are to some extent independent of each other. This need may arise in treatments that involve multiple fluids. Safe and secure mechanisms to ensure fluid balance in such systems are described.