Wound Therapy System With Proportional Valve Mechanism
First Claim
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1. 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 to apply a subatmospheric pressure to the wound;
a subatmospheric pressure mechanism including;
a housing;
a vacuum source disposed in the housing and having an inlet port and an outlet port;
a collection canister in fluid communication with the vacuum source via the inlet port and with the wound dressing for collecting exudate removed from the wound bed under influence of the vacuum source; and
a valve mechanism disposed relative to the vacuum source between the inlet and outlet ports, the valve mechanism adapted to move between an open position where the vacuum source is capable of drawing a vacuum in the collection canister through the inlet port, a proportional position where the outlet port is placed in fluid communication with the inlet port, and a closed position where fluid communication between the inlet port and the wound dressing is interrupted.
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Abstract
A system for subatmospheric pressure therapy in connection with healing a wound includes a wound dressing adapted for positioning relative to a wound bed of a subject to apply a subatmospheric pressure to the wound and a subatmospheric pressure mechanism. The subatmospheric pressure mechanism may be portable and adapted to be carried or worn by the subject.
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Citations
10 Claims
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1. A portable system for subatmospheric pressure therapy in connection with healing a wound, which comprises:
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a wound dressing dimensioned for positioning relative to a wound bed of a subject to apply a subatmospheric pressure to the wound; a subatmospheric pressure mechanism including; a housing; a vacuum source disposed in the housing and having an inlet port and an outlet port; a collection canister in fluid communication with the vacuum source via the inlet port and with the wound dressing for collecting exudate removed from the wound bed under influence of the vacuum source; and a valve mechanism disposed relative to the vacuum source between the inlet and outlet ports, the valve mechanism adapted to move between an open position where the vacuum source is capable of drawing a vacuum in the collection canister through the inlet port, a proportional position where the outlet port is placed in fluid communication with the inlet port, and a closed position where fluid communication between the inlet port and the wound dressing is interrupted. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification