Patent ID: 8057423
Filing Date: 2011-11-15
Classification: A61M

Abstract:
1. A dialysis system comprising: a dialysis instrument; a disposable cassette, the cassette including a rigid portion defining at least one pumping chamber, a pouch fitted over the rigid portion, the pouch including at least one flexible sheet, the at least one flexible sheet including a folded top portion having an at least substantially flat surface, a front face and a rear face each extending from the folded top portion, the front face and rear face each including first and second side edges and a bottom edge, wherein at least a portion of the first side edge of the front face is sealed to the first side edge of the rear face, at least a portion of the second side edge of the front face is sealed to the second side edge of the rear face, and at least a portion of the bottom edge of the front face is sealed to the bottom edge of the rear face, so as to provide a sealed environment inside the pouch; and wherein the instrument is configured to press the at least one flexible sheet against the at least one pumping chamber to seal the pumping chamber for operation.