Abstract: Provided herein is a wound drain useful in negative pressure wound treatment therapy. The wound drain advantageously includes structural components that prevent the drain from collapsing under negative pressure and from ingesting foreign materials introduced into a wound cavity, such as gauze and sponges, which con obstruct exudate flow through the drain. The wound drain may further comprise a dual lumen configuration such that it advantageously can be used in for positive pressure applications, or for combined negative and positive pressure treatments.