Patent ID: 11918720
Assignee: NXSTAGE MEDICAL, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A multiple treatment fluid stream system, comprising:
a multi-stream treatment machine including at least two pumps, at least one of which is a blood pump and at least one other of which is a multiple-fluid pump that pumps one of replacement fluid, dialysate, anti-coagulant, and spent dialysate in an extracorporeal blood treatment mode and pumps blood in an extracorporeal membrane oxygenation mode; and
an accessory fluid circuit comprising:
a first junction connected to an arterial access connector;
a second junction connected to a blood oxygenator connector; and
at least two parallel pumping tube segments including a first pumping tube segment and a second pumping tube segment, the first pumping tube segment connected to the first junction and also connected to the second junction, the second pumping tube segment connected to the first junction and also connected to the second junction, wherein the first pumping tube segment and the second pumping tube segment provide parallel flow paths for the blood from the arterial access connector to the blood oxygenator connector,
the blood that enters the accessory fluid circuit from the arterial access connector splits into a first blood stream that flows through the first pumping tube segment and a second blood stream that flows through the second pumping tube segment, and
the first blood stream and the second blood stream combine into a combined blood stream at the second junction.