Patent ID: 8790596
Filing Date: 2014-07-29
Classification: G01N

Abstract:
1. A fluid dispenser for a biological sample processing system, the fluid dispenser comprising: a barrel including a main body and a piston coupled to the main body, the main body including a sidewall and a bottom that at least partially define a reservoir chamber for holding fluid; a valve positioned downstream of the reservoir chamber; and a filter device upstream of the valve and including a protective cantilevered member and a vertically oriented filtering element having a plurality of through-holes with inlets positioned closer to a longitudinal axis of the filter device than an outer periphery of protective cantilevered member positioned above the plurality of through-holes, wherein the filtering element extends upwardly through at least a portion of the reservoir chamber when the barrel is in a vertical orientation to allow the fluid, which is in the reservoir chamber and located between the filtering element and the sidewall of the main body, to pass laterally through the filtering element and to flow towards the valve while the filtering element substantially blocks precipitates in the fluid having a threshold size.