



On February 14, 2012, the U.S. Patent and Trademark Office issued U.S. Patent No. 8,114,288. ‘288 patent, prosecuted by Novel IP, is assigned to Fresenius Medical Care Holdings, Inc. The present invention is an extracorporeal blood processing system comprises a plastic molded compact manifold that supports a plurality of molded blood and dialysate fluidic pathways along with a plurality of relevant sensors, valves and pumps. A disposable dialyzer is connected to the molded manifold to complete the blood circuit of the system. The compact manifold is also disposable in one embodiment and can be detachably installed in the dialysis machine. Two-way valves in the manifold are used to direct the dialysate flow to the dialyzer in hemodialysis mode of operation and to bypass the dialyzer to direct the flow of infusion grade dialysate directly to the patient in hemofiltration mode of operation.
The ‘288 has twenty-one claims. Representative claim 1 is provided below:
1. A manifold for a blood purification system, the manifold comprising: a first fluid conducting segment wherein said first fluid conducting segment comprises a rigid plastic substrate, wherein said first fluid conducting segment comprises a first portion of a first flow path, and wherein said first fluid conducting segment comprises a first port located at an edge of the first fluid conducting segment; a second fluid conducting segment parallel to said first fluid conducting segment wherein said second fluid conducting segment comprises a rigid plastic substrate, wherein said second fluid conducting segment comprises a second portion of the first flow path, wherein said second fluid conducting segment comprises a second port located at an edge of the second fluid conducting segment, and wherein said first and second ports are positioned opposite each other; a connecting fluid conducting segment that is perpendicular to, and separates, the first and second fluid conducting segments; and a flexible tube having a first end and a second end, wherein said first end of the tube is attached to said first port, wherein said second end of the tube is attached to said second port, wherein said tube serves to connect said first portion of the first flow path to said second portion of the first flow path, and wherein the connecting fluid conducting segment is a parallel to said flexible tube.
