Reduced-pressure, multi-orientation, liquid-collection canister
View Patent ↗A liquid-collection canister includes a liquid collection chamber defined by at least one wall and a first and second gas-communication pathway formed within the at least one wall. A first aperture is positioned between the first gas-communication pathway and the liquid collection chamber to allow gaseous communication between the liquid collection chamber and the first gas-communication pathway. A second aperture is positioned between the second gas-communication pathway and the liquid collection chamber to allow gaseous communication between the liquid collection chamber and the second gas-communication pathway. A first and a second liquid-air separator are positioned over the first aperture and the second aperture, respectively, to substantially prevent liquid passing through the first and second apertures.
1. A reduced pressure treatment system for applying reduced pressure treatment to a tissue site, the system comprising:
a canister comprising:
a plurality of walls forming a liquid collection chamber, each wall having an inner surface and an outer surface;
a first wall of the plurality of walls having a first recess formed in the outer surface of the first wall;
a second wall of the plurality of walls having a second recess formed in the outer surface of the second wall;
a first cover disposed over the first recess to form a first space;
a second cover disposed over the second recess to form a second space;
a first aperture disposed in the first wall to fluidly connect the first space and the liquid collection chamber;
a second aperture disposed in the second wall to fluidly connect the second space and the liquid collection chamber;
a first liquid-air separator positioned to substantially prevent liquid from the liquid collection chamber from entering the first space through the first aperture of the first wall;
a second liquid-air separator positioned to substantially prevent liquid from the liquid collection chamber from entering the second space through the second aperture of the second wall; and
a reduced pressure port fluidly connected to the first space and the second space;
a reduced pressure source in fluid communication with the reduced pressure port to deliver a reduced pressure to the liquid collection chamber; and
a manifold in fluid communication with the liquid collection chamber and
adapted to be positioned at the tissue site to distribute the reduced pressure to the tissue site; wherein:
the first recess is substantially L-shaped and includes a first leg portion intersecting a second leg portion at an apex region of the first recess;
the first aperture is positioned in the apex region of the first recess;
the second recess is substantially rectangular in shape and includes a first end and a second end;
the second aperture is positioned at the first end of the second recess;
the canister further comprises:
a third aperture positioned in the first leg portion of the first recess opposite the apex region;
a fourth aperture positioned in the second leg portion of the first recess opposite the apex region;
a fifth aperture positioned at the second end of the second recess;
a third liquid-air separator positioned to substantially prevent liquid from the liquid collection chamber from entering the first space through the third aperture;
a fourth liquid-air separator positioned to substantially prevent liquid from the liquid collection chamber from entering the first space through the fourth aperture; and
a fifth liquid-air separator positioned to substantially prevent liquid from the liquid collection chamber from entering the second space through the fifth aperture.
2. The reduced pressure treatment system of claim 1 , wherein the first wall is opposite the second wall.
3. The reduced pressure treatment system of claim 1 , wherein the first wall is adjacent the second wall.
4. The reduced pressure treatment system of claim 1 , wherein the canister further comprises an absorbent pad disposed within the liquid collection chamber.
5. The reduced pressure treatment system of claim 1 , wherein:
the first and third liquid-air separators are coplanar; and
the second and fourth liquid-air separators are coplanar.
6. The reduced pressure treatment system of claim 1 , wherein:
the first aperture is one of a plurality of apertures covered by the first liquid-air separator;
the second aperture is one of a plurality of apertures covered by the second liquid-air separator;
the third aperture is one of a plurality of apertures covered by the third liquid-air separator;
the fourth aperture is one of a plurality of apertures covered by the fourth liquid-air separator; and
the fifth aperture is one of a plurality of apertures covered by the fifth liquid-air separator.