Open-cavity, reduced-pressure treatment devices and systems

An open-cavity, reduced-pressure treatment device for treating a tissue site in an open cavity of a patient, the open-cavity, reduced-pressure treatment device comprising:

• a central fluid hub having an upper surface and a lower surface, the fluid hub including a foam manifold defining at least a portion of the upper surface and a substantially fluid impermeable wall material defining at least a portion of the lower surface, the fluid impermeable wall material including a plurality of apertures,
• a plurality of elongate members having a proximal and distal end and upper and lower surfaces, the elongate members including a foam enclosed within a substantially fluid impermeable wall material, the proximal ends of the plurality of elongate members in fluid communication with the central fluid hub, the elongate members including apertures extending through the substantially fluid impermeable wall material along at least a portion of the lower surface of the elongate members,
• wherein the plurality of elongate members have a first length L1 extending from the central fluid hub and a first width (W1) generally parallel to the upper surface,
• wherein the central hub has a second width (W2) between a first elongate member and second elongate member;
• wherein the second width is greater than the first width (W2>W1);
• wherein the central fluid hub and plurality of elongate members are configured to be disposed adjacent to the tissue site in the open cavity;
• and
• wherein each lower surface of each of the plurality of the elongate members is configured to substantially contact the tissue site along the first length of the elongate member.