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US 8,529,548 B2Granted
Wound treatment apparatus and method
AssigneeSmith & Nephew, Inc.
InventorsPatrick Lewis Blott, Edward Yerbury Hartwell, Julian Lee-Webb, Derek Nicolini, Clare Green, Robin Paul Martin
Life of this patent
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Abstract
An apparatus and method for aspirating, irrigating and/or cleansing wounds is provided. The apparatus and method include one or more of the following: simultaneous aspiration and irrigation of the wound, supplying of thermal energy to fluid circulated through the wound; supplying physiologically active agents to the wound; a biodegradable scaffold in contact with the wound bed; and application of stress or flow stress to the wound bed.
Claims21
An apparatus for aspirating and irrigating a wound, comprising
- a conformable wound filler configured to be placed in the wound;
- a wound cover configured to form a seal over the wound;
- a fluid supply tube configured to supply fluid to the wound;
- at least one fluid reservoir configured to be connected to the fluid supply tube;
- an outlet tube configured to supply negative pressure to the wound;
- a negative pressure source configured to be connected to the outlet tube, the negative pressure source configured to apply negative pressure to the wound by cycling between a first negative pressure level and a second negative pressure level;
- a control device configured to:
- control the fluid supply and the negative pressure source such that fluid is supplied to the wound while fluid is simultaneously aspirated from the wound;
- maintain a desired balance of fluid removed from the wound and fluid supplied to the wound;
- and
- control the fluid supply such that fluid from the at least one fluid reservoir is supplied to the wound in a plurality of fluid supply cycles, each fluid supply cycle supplying a volume of fluid with a time period between fluid supply cycles.
8 more elements
Dependencies are inferred from the claim text.