Fluid processing based on inflatable bags, mixing system, and method of use thereof

A device for mixing biological specimens in a single compartment specimen bag, the device comprising:

• a single compartment specimen bag,
• a support structure comprising a base plate configured to support the single compartment specimen bag,
• a cover that fits over the support structure, wherein the cover is configured to pivot between an open position and a closed position,
• at least one squeezing lip protruding from one of the support structure and the cover,
• at least one inflatable airbag installed under the cover, and configured to directly contact the single compartment specimen bag when the cover is in the closed position and the at least one inflatable airbag is inflated by a pneumatic system, and
• a lock to lock the cover in the closed position during mixing of biological specimens in the single compartment specimen bag,
• wherein the single compartment specimen bag is delimited by the squeezing lip forming a first sub-compartment, a second sub-compartment, and a narrower path linking the first and second sub-compartments than without the squeezing lip, and the at least one inflatable airbag comprises a first inflatable airbag configured to provide alternate progressive push and pull movement transmitted to the first sub-compartment of the single compartment specimen bag by progressively inflating and deflating the first inflatable airbag with the pneumatic system and a second inflatable airbag configured to work in tandem with the first inflatable bag to provide alternate progressive pull and push movement transmitted to the second sub-compartment of the single compartment specimen bag by progressively inflating and deflating the second inflatable airbag with the pneumatic system.