Abstract: A separating system, for example for separating material from a suspension such as a biological suspension, is disclosed herein. The system comprises a separation vessel arranged to enable the formation of a cyclone therewithin. For example, the separation vessel may be at least partially conical in shape for enabling the formation of a cyclone therewithin. The separation vessel comprises a fluid inlet, an underflow outlet and an overflow outlet. The system also comprises at least one of an underflow outlet fluid control means for controlling the flow of fluid through the underflow outlet, and an overflow outlet fluid control means for controlling the flow of fluid through the overflow outlet. The system may further comprise an inlet fluid control means for controlling the flow of fluid through the fluid inlet.

Abstract: A multiple-loop tangential flow filtration apparatus for concentrating fluids is described herein. The apparatus comprises a plurality of tube loops for receiving fluid therethrough, each tube loop comprising a respective filter, and a common feed pump for driving the fluid across each respective filter. The plurality of tube loops are coupled to the common pump via a common feed line.

Abstract: Apparatus for transporting fluid within a biological subject, the apparatus including an at least partially compliant section, so that the compliant section at least partially controls the flow of fluid therethrough. The compliant section may also be used in conjunction with a heart pump for the purpose of at least partially controlling the flow of blood through the heart pump.