Elastically Deformable Biological Liquid Containment Units

The containment units are pre-deformed to a compressed state before filling, creating an air expulsion pathway and reducing internal volume. This preliminary deformation eliminates the need for repeated vacuum aspiration operations, as air is automatically expelled during the filling process itself, significantly reducing preparation time while ensuring complete air removal.

Instead of using vacuum to pull air out of the units, the invention inverts the approach by using positive pressure from the filling liquid to push air out through the deformation pathway. The liquid flow itself becomes the driving force for air expulsion, reversing the traditional vacuum aspiration method and eliminating time-consuming repeated operations.

The system segments the filling process into individual unit operations, with each containment unit being filled separately through the same connecting elements. The connecting elements are designed to interface with multiple units in sequence without requiring enlargement, as each unit is filled independently. This segmentation allows high productivity while maintaining minimal liquid waste, as the connecting elements remain the same size regardless of the number of units processed.

The filling process operates continuously with the syringe plunger moving in one direction to fill multiple units sequentially. The connecting elements facilitate this continuous action without requiring enlargement or complex configurations, allowing the system to maintain efficient liquid transfer with minimal waste while increasing the number of units that can be filled in a single operation.

The containment units are pre-deformed to create an air expulsion pathway before filling begins. This preliminary action positions the unit walls to facilitate air escape during filling, ensuring that air bubbles do not obstruct the liquid flow. As a result, complete filling is achieved without waste, as the deformation pathway allows air to be pushed out continuously during the filling process.

The invention inverts the traditional vacuum filling approach by using positive pressure from the syringe to push liquid into the units. This positive pressure flow, combined with the pre-created deformation pathway, naturally expels air bubbles during filling. The inversion eliminates air obstruction problems and prevents liquid waste, as the filling liquid itself drives air expulsion rather than relying on vacuum aspiration.

The containment units are pre-deformed to a compressed state that creates an air expulsion pathway. This preliminary deformation allows the units to be easily filled and air-free, while the same deformation mechanism enables controlled dispensing. The elastic memory of the deformed walls provides a one-way valve effect that allows filling but controls dispensing, combining both advantages in a single structural feature.

The containment units utilize dynamic deformation of their walls to provide different functions at different stages. During filling, the deformed walls facilitate air expulsion and liquid entry. During dispensing, the elastic recovery of the deformed walls creates a one-way valve effect that controls liquid flow. This dynamic structural change allows the same unit to provide both air removal capability and dispensing control without requiring different unit types.