Patent ID: 9134219
Filing Date: 2015-09-15
Classification: B01L,G01N

Abstract:
1. A flow cell for measuring hydraulic conductance of dentin samples, comprising: a. a flow inlet channel; b. a flow outlet channel in flow communication with the flow inlet channel; c. at least one dentin sample securing mechanism positioned between the flow inlet channel and the flow outlet channel for securing a dentin sample; and d. at least one venting channel having an inner opening from which the venting channel extends outwardly from the flow cell, the venting channel positioned for receiving any air in the form of at least one air bubble that might accumulate under a dentin sample secured by the securing mechanism, after introduction of a fluid into the flow cell through the flow inlet channel, wherein the venting channel forms a positive angle θ relative to a bottom component of a horizontal cross-sectional plane through the bottom component, which horizontal cross-sectional plane intersects the inner opening of the venting channel such that the angle θ ranges from greater than 0° to less than 90°, the angle θ being measured counter clockwise from the bottom side of the horizontal cross-sectional plane and having its vertex at the point of intersection of the inner opening and the horizontal cross-sectional plane.