Patent ID: 7214312
Filing Date: 2007-05-08
Classification: A61M,B01D,C02F

Abstract:
1. A fluid circuit for a blood treatment system, comprising; a blood filter or dialyzer with a blood circuit and a replacement fluid container with a replacement fluid circuit connected to said blood circuit for diluting blood; said blood circuit communicating with a blood side of said blood filter or dialyzer and having at least one patient access port connected to said replacement fluid container to define a recirculating path; a port on a non-blood side of said filter or dialyzer connectable to a source of replacement fluid; said recirculating path being entirely hermetically isolated from an outside of said fluid circuit except by a flow path through a membrane of said filter or dialyzer from said non-blood side to said blood side such that replacement fluid may be added to said replacement fluid container through said filter or dialyzer membrane and stored therein and a flow through said recirculating path may be established without making any connections or disconnections breaking said hermetic seal.