Patent ID: 8414519

Claim:
A portable system for subatmospheric pressure therapy in connection with healing a wound, which comprises: a wound dressing dimensioned for positioning relative to a wound bed of a subject; a subatmospheric pressure mechanism dimensioned to be carried by the subject, the subatmospheric pressure mechanism including a housing and being adapted to draw a vacuum; a canister associated with the housing and having a collection bag disposed therein, the canister including an inlet port in fluid communication with the wound dressing and an outlet port in fluid communication with the subatmospheric pressure mechanism, the collection bag being adapted to expand upon receipt of fluids from the wound and a majority of the collection bag being formed of a gas-permeable and liquid-impermeable material to permit the passage of gas through the collection bag; and an extension depending within the canister from a position adjacent the outlet port and external of the collection bag, the extension being in fluid communication with the outlet port and defining a channel in a wall portion of the extension to facilitate drawing of a vacuum within the canister.