Wound dressings and systems for effluent management of topical wound therapy and related methods

A device configured to dilute therapeutic gas effluent flowing from a dressing, the device comprising:

• a therapeutic gas source configured to provide therapeutic gas to the dressing;
• a first outlet configured to be in fluid communication with the therapeutic gas source;
• a container comprising a sidewall that defines a chamber configured to receive the therapeutic gas effluent from the dressing;
• a first inlet configured to be in fluid communication with the chamber and to receive the therapeutic gas effluent from the dressing;
• a negative pressure source configured to be coupled to the container such that the negative pressure source can be activated to draw fluid from the dressing through the chamber of the container, wherein the negative pressure source comprises:
• an inlet through which gas is received into the negative pressure source;
• and an outlet through which gas exits the negative pressure source;
• a diluent gas source configured to deliver a diluent gas to dilute the therapeutic gas effluent before the therapeutic gas effluent enters through the inlet of the negative pressure source;
• wherein the therapeutic gas source comprises an oxygen source and the therapeutic gas comprises oxygen, and the chamber comprises an oxygen-sorbent material having one or more elements selected from the group of elements consisting of:
• iron, sodium chloride, and activated carbon.

A device configured to dilute therapeutic gas effluent flowing from a dressing, the device comprising:

• a therapeutic gas source configured to provide therapeutic gas to the dressing;
• a first outlet configured to be in fluid communication with the therapeutic gas source;
• a container comprising a sidewall that defines a chamber configured to receive the therapeutic gas effluent from the dressing;
• a first inlet configured to be in fluid communication with the chamber and to receive the therapeutic gas effluent from the dressing;
• a negative pressure source configured to be coupled to the container such that the negative pressure source can be activated to draw fluid from the dressing through the chamber of the container, wherein the negative pressure source comprises:
• an inlet through which gas is received into the negative pressure source;
• and an outlet through which gas exits the negative pressure source;
• a diluent gas source configured to deliver a diluent gas to dilute the therapeutic gas effluent before the therapeutic gas effluent enters through the inlet of the negative pressure source;
• wherein the therapeutic gas source comprises an oxygen source and the therapeutic gas comprises oxygen and the container comprises one or more oxygen filters configured to absorb oxygen, the one or more oxygen filters being impregnated with one or more elements selected from the group of elements consisting of:
• pyrogallol, iron, silver chloride, and ascorbic acid.