US Patent 8021348 Wound treatment apparatus

An apparatus comprising a housing, a controller, a fluid source, a negative pressure source, and a canister. The controller, the fluid source, the negative pressure source, and the canister are carried by the housing. The fluid source is couplable to the bandage. The negative pressure source is couplable to the bandage through the canister. The controller is operable to provide a first signal resulting in automated fluid delivery to the bandage from the fluid source. The controller is operable to provide a second signal resulting in the negative pressure source applying negative pressure to the bandage through the canister.