Patent ID: 8435213

Claim:
A reduced pressure delivery system for applying a reduced pressure tissue treatment to a tissue site comprising: a primary manifold having a wall surrounding a primary flow passage and adapted to be placed in proximity to the tissue site, the wall including an inner surface having a plurality of projections extending from at least a portion of the inner surface and into the primary flow passage, the wall further including a plurality of apertures through the wall and communicating with the primary flow passage; a first conduit having at least one outlet fluidly connected to the primary flow passage to deliver reduced pressure through the primary flow passage and the plurality of apertures; a second conduit having at least one outlet in proximity to the primary flow passage or the at least one outlet of the first conduit, the second conduit in fluid communication with the primary flow passage or the at least one outlet of the first conduit to purge blockages at or near the primary flow passage or the at least one outlet of the first conduit, wherein the second conduit is a closed conduit separate from the first conduit and the primary flow passage except at the at least one outlet in proximity to the primary flow passage or the at least one outlet of the first conduit; and a valve in fluid communication with the second conduit to regulate delivery of a purge fluid to the second conduit.