Patent ID: 6758971
Filing Date: 2004-07-06
Classification: A61M,B01D

Abstract:
A medical filter, comprisinga chamber, having an interior, a patient connection, in open fluid communication with said interior and adapted for connection to a dialysis solution flow fixture carried by a dialysis patient, a transport connection, in open fluid communication with said interior and adapted for connection to external dialysis solution containment apparatus; support structure, mounted within said interior, structured as a thin, perforated member, having a support surface; hydrophilic filter medium mounted atop said support surface, having a pore size capable of separating particulate materials from fresh dialysis solution; first channel structure within said chamber defining a first flow path from said patient connection across the surface of said filter medium to said transport connection; second channel structure within said chamber defining a second flow path from said transport connection through said filter medium and said support structure to said patient connection; and flow control mechanism mounted within said chamber and operable to direct fluid from said patient connection through said first channel structure and to direct fluid from said transport connection through said second channel structure; wherein said second channel structure includes a portion in communication with an air vent structure constructed and arranged to release air from solution flowing through said interior while retaining said solution within said interior.