A device for use in a system or method of collecting and processing aspirated tissue received from a harvesting device is provided by a canister body having a vacuum port and an evacuation port operable to be placed in communication with a vacuum source, a tissue harvesting port for directing tissue into the canister body received from the harvesting device under suction, a pressure equalization passage, and a separator element dividing the canister body into an upper vacuum chamber in communication with the vacuum port and the tissue harvesting port and a lower vacuum chamber in communication with the evacuation port, the separator element including a plurality of apertures enabling fluid to pass between the chambers while restricting tissue from doing the same and a depression with a channel leading to a tissue retrieval port to facilitate processed tissue collection.