Wound Ventilation System
First Claim
1. A wound ventilation system comprising:
- a wound dressing having an inlet and outlet, said wound dressing forming a substantially airtight cover over a wound;
a gas supply in fluid communication with said inlet supplying a gas to said inlet;
a gas flow controller controlling the flow of gas from said gas supply into said inlet;
a humidifier humidifying said gas entering said inlet;
a heater located prior to an exit of said humidifier;
a re-heater located after said exit of said humidifier to minimize any condensate that may be formed; and
a vacuum source in fluid communication with said outlet, said outlet drawing said gas through said inlet over the wound covered by said wound dressing, and out of said outlet.
1 Assignment
0 Petitions
Accused Products
Abstract
A wound treatment apparatus that ventilates a wound dressing with warm humidified oxygen and/or air at a very low flow rate while under a sub-atmospheric pressure. A controlled flow of filtered air and/or oxygen is selected or blended under atmospheric pressure. This gas is pulled by a downstream vacuum source through a flow limiting device and exits at a sub-atmospheric pressure equal to the vacuum source. The gas flow is then humidified and heated to prescribed conditions before entering a substantially airtight negative pressure type wound dressing which is adapted for ventilation with an added inlet connection. This conditioned gas ventilates and nourishes the wound environment exiting the dressing outlet, through a fluid trap, to the vacuum source.
91 Citations
17 Claims
-
1. A wound ventilation system comprising:
-
a wound dressing having an inlet and outlet, said wound dressing forming a substantially airtight cover over a wound; a gas supply in fluid communication with said inlet supplying a gas to said inlet; a gas flow controller controlling the flow of gas from said gas supply into said inlet; a humidifier humidifying said gas entering said inlet; a heater located prior to an exit of said humidifier; a re-heater located after said exit of said humidifier to minimize any condensate that may be formed; and a vacuum source in fluid communication with said outlet, said outlet drawing said gas through said inlet over the wound covered by said wound dressing, and out of said outlet. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
-
Specification