Fluid collection canister with integrated moisture trap
A moisture trap for removing liquid from a fluid drawn from a tissue site treated with reduced pressure and systems and methods for using the same are described. The moisture trap may include a barrier adapted to be fluidly coupled to and define an indirect fluid path between a fluid reservoir and a reduced-pressure source. The barrier may have a hydrophilic surface. The moisture trap also may include a sump adapted to receive condensation from the barrier.
1. A moisture trap for removing liquid from fluid in a reduced pressure treatment system, the moisture trap comprising:
a fluid inlet configured to be fluidly coupled to a reduced-pressure inlet of a canister;
a fluid outlet configured to be fluidly coupled to a reduced-pressure source;
a sump adapted to receive condensation;
a barrier disposed between the fluid inlet and the fluid outlet, the barrier having a collection end and a drainage end, the drainage end disposed proximate to the sump; and
a plurality of liquid channels disposed on the barrier, the liquid channels configured to direct condensation from the collection end to the drainage end.
2. The moisture trap of claim 1 , wherein the liquid channels comprise a central channel and a plurality of tributary channels.
3. The moisture trap of claim 2 , wherein the central channel has a terminus proximate to the drainage end.
4. The moisture trap of claim 3 , wherein the drainage end is gravitationally lower than the collection end.
5. The moisture trap of claim 2 , wherein the tributary channels extend from edges of the barrier toward the central channel.
6. The moisture trap of claim 5 , wherein the tributary channels from a fletching pattern.
7. The moisture trap of claim 1 , wherein a condensation surface surrounds the plurality of liquid channels.
8. The moisture trap of claim 7 , wherein the condensation surface has a rough finish.
9. A canister for storing liquid in a reduced pressure treatment system, the canister comprising:
a fluid reservoir;
a canister inlet fluidly coupled to the fluid reservoir and configured to be fluidly coupled to a dressing;
a canister outlet fluidly coupled to the fluid reservoir configured to be fluidly coupled to a reduced-pressure source; and
a moisture trap having:
a fluid inlet configured to be fluidly coupled to the fluid reservoir;
a fluid outlet configured to be fluidly coupled to the reduced-pressure source;
a sump adapted to receive condensation;
a barrier disposed between the fluid inlet and the fluid outlet, the barrier having a collection end and a drainage end, the drainage end disposed proximate to the sump; and
a plurality of liquid channels disposed on the barrier, the liquid channels configured to direct condensation from the collection end to the drainage end.
10. The canister of claim 9 , wherein the liquid channels comprise a central channel and a plurality of tributary channels.
11. The canister of claim 10 , wherein the central channel has a terminus proximate to the drainage end.
12. The canister of claim 11 , wherein the drainage end is gravitationally lower than the collection end.
13. The canister of claim 10 , wherein the tributary channels extend from edges of the barrier toward the central channel.
14. The canister of claim 13 , wherein the tributary channels from a fletching pattern.
15. The canister of claim 9 , wherein a condensation surface surrounds the plurality of liquid channels.
16. The canister of claim 15 , wherein the condensation surface has a rough finish.
17. A method for removing liquid from fluid in a reduced-pressure treatment system, the method comprising:
providing a moisture trap comprising:
a fluid inlet configured to be fluidly coupled to a reduced-pressure inlet of a canister;
a fluid outlet configured to be fluidly coupled to a reduced-pressure source;
a sump adapted to receive condensation;
a barrier disposed between the fluid inlet and the fluid outlet, the barrier having a collection end and a drainage end, the drainage end disposed proximate to the sump; and
a plurality of liquid channels disposed on the barrier;
passing fluid from the reduced-pressure treatment system into the fluid inlet and across the barrier;
inducing a vapor carried by the fluid to condense into liquid onto the barrier; and
directing fluid into the plurality of liquid channels from the collection end to the drainage end and into the sump.
18. The method of claim 17 , wherein the liquid channels comprise a central channel and a plurality of tributary channels.
19. The method of claim 18 , wherein the central channel has a terminus proximate to the drainage end.
20. The method of claim 19 , wherein the drainage end is gravitationally lower than the collection end.