Patent ID: 8337168

Claim:
A finger-type peristaltic pump (DDS), comprising a plurality of pressing-fingers, a tube, and a passive interfacing mechanism; wherein said passive interfacing mechanism comprises (a) a channel for accommodating said tube and mounting said tube in a location suitable for said pressing-fingers to apply substantially perpendicular force on said tube; (b) a ribbed anvil rigidly supporting said tube on opposite side to said pressing fingers, wherein said anvil includes at least one fixed protruding rib located at a defined position relative to at least one of said fingers; and wherein by changing the heights of one or more of said ribs it is possible to calibrate the squeezed volume of the infused fluid per pumping cycle, said squeezed volume is defined by ribs of a nominal height, so as the ratio between squeezed volume per revolution and the speed of the pumping mechanism can be calibrated.