A portable NPWT system includesa dressing assembly for positioning over a woundto apply a negative pressure to the wound and acanister assembly. The canister assembly includesa control unit having a vacuum source and a controllerand a collection canister in communicationwith the dressing assembly operable to receive fluidfrom the wound. The collection canister hasports to introduce a vacuum from the vacuumsource into the collection canister. A ball float isprovided to substantially close the suction port inresponse to one of collection of a predeterminedvolume of exudate in the collection canister, tiltingof the collection canister beyond a predeterminedangle of orientation or inversion of the collectioncanister.
展开▼
