Patent ID: 7775780
Filing Date: 2010-08-17
Classification: A61M,F04B

Abstract:
1. A cassette, comprising: a) a body having an exterior; b) a flexible sheet attached to the body, the sheet containing at least one first molded fluid channel, the at least one first molded fluid channel projecting outwardly from the exterior of the body and wherein the flexible sheet is tapered so as to form a tapered section of the at least one first molded fluid channel; and c) at least one second molded fluid channel formed in the body and located so as to correspond with the tapered section of the at least one first molded fluid channel to form a transition fluid channel region, the transition fluid channel region being of relatively uniform cross-sectional area; and wherein the at least one first molded fluid channel and the transition fluid channel region are of approximately the same uniform cross-sectional area.