Patent ID: 7282362

Claim:
A multiwell test apparatus which comprises a feeding tray and a multiwell filter plate supported by said feeding tray, said multiwell filter plate comprising a multiplicity of wells extending from a plate, each of said wells comprising (a) a hollow member having two openings, one opening extending from said plate and (b) a permeable barrier secured about said opening extending from the plate, the barrier of said wells positioned within a void volume of said feeding tray, said feeding tray comprising a support surface, walls surrounding said surface to enclose said surface, a multiplicity of protrusions extending from said support surface in a direction substantially the same as a direction said walls extend from said support surface, said protrusions being located adjacent from 1 to 4 of the wells of the filter plate and further comprising one or more baffles on the support surface and the one or more baffles do not touch the walls of the feeding tray.