Patent ID: 8366691

Claim:
A reduced-pressure treatment system for treating a tissue site on a patient, the system comprising: a manifold member for placing proximate the tissue site; an over-drape for providing a fluid seal over the manifold member and the patient; a reduced-pressure subsystem for delivering reduced pressure to the over-drape; and wherein the reduced-pressure subsystem comprises: a reservoir having an interior space operable to contain fluids, a reduced-pressure delivery conduit in fluid communication with the interior space for delivering reduced pressure to the over-drape, a source conduit in fluid communication with the interior space, a pressure sensor conduit in fluid communication with the interior space, a pressure sensor in fluid communication with the pressure sensor conduit, a reduced-pressure source in fluid communication with the source conduit and operable to deliver reduced pressure to the source conduit, a power line coupled to the reduced-pressure source and adapted to couple to a power supply; a power sensor coupled to a portion of the power line between the reduced-pressure source and the power supply, the power sensor adapted to measure a supply data signal correlated to a supply rate of reduced pressure, and a reduced-pressure control unit associated with the pressure sensor, the power sensor, and the reduced-pressure source, the reduced-pressure control unit operable to: receive pressure data from the pressure sensor, receive the the supply data signal from the power sensor, determine when a partial blockage condition or reservoir-full or blockage condition exists based on the pressure data and the supply data signal, increase the rate of delivery of reduced pressure when a partial blockage condition exists, and turn off the reduced-pressure source when a reservoir-full or blockage condition exists.