The simple pump creates negative pressure â€” shown here sealing a bandage on a leg wound â€” which speeds up the healing process (Photo: Patrick Gillooly)
Danielle Zurovcik SM '07 demonstrates how to use the negative pressure pump to seal an arm wound (Photo: Melanie Gonick)
For some reason, and nobody knows exactly why, the healing process for open wounds can be sped up by applying suction to them under a tightly-sealed bandage. The negative pressure this creates has been benefiting patients for decades but because mechanical pumps are expensive and they need a constant electricity supply the technology is not readily available, often where it is needed most – in the developing world. A newly developed basic negative pressure pump that doesn’t require electricity, is cheap to manufacture, lightweight to transport and can be left in place for days could change that.
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