The present disclosure relates to an in vitro medical diagnostic device that includes a removable calibration fluid cartridge. The apparatus includes a cross-head die assembly for use with an extruder, the cross-head die assembly having: an inlet section having an inlet for receiving flow from the extruder; an upper support block removably connected to a first side of the interior section; and a lower block removably connected to a second side of the interior section. Because the sheet member restrains the sealing resin member from vibrating, the bonding wire is connected with improved reliability. Each of the plurality of slots comprises a first channel comprising a first set of pilot symbols and a second channel comprising a second set of pilot symbols.