includes a spike 11 for each chamber adapted to be slotted in the spike holder 10 below the chamber the spike 11 shown in fig5 and 6 has a base 41 and a top 42 the spike 11 is a vented spike the base 41 has two guide notches 45 on opposite sides which are adapted to hold to corresponding slide rails 55 of the spike holder 10 see fig7 and 8 the hole 44 in the base is adapted to mount pin 54 of the spike holder 10 when the spike 11 is slotted in the spike holder 10 the spike 11 preferably has a sheath 43 to avoid contamination prior use the fts further comprises tubing 15 16 connected to each spike 11 and adapted to transfer the fluid from the spiked container to the cm injector see fig1 and 4 a y connector 17 is mounted between the tubing 15 of spike 11 of the top temperature controlled chamber 20 a and tubing 16 of spike 11 of the bottom temperature controlled chamber 20 b a y connector 17 is mounted between the tubing 15 of spike 11 of the top non temperature controlled chamber 21 a and tubing 16 of spike 11 of the bottom non temperature controlled chamber 21 b tubing 18 connects the output end of the y connector 17 with the connector plug of the cm injector valves not shown are mounted between each spike 11 and the y connector 17 to control the fluid from the respective spiked container to the y connector by means of the valve fluid can be extracted selectively by the cm injector from the spiked top or bottom container filled with cm or saline a central electronic control system cecs with proprietary software is used to.