Method and device for providing intermittent negative pressure wound healing

This invention describes a method for healing wounds using a special dressing and a device that applies intermittent suction. It works by first applying strong negative pressure to compress the dressing and the wound, which helps with healing and maintains a tight seal. Then, the pressure is partially released to a milder suction, allowing the wound to relax while still keeping the dressing securely in place, specifically cycling between strong suction (e.g., -50 to -500 mmHg) and milder suction (e.g., -10 to -40 mmHg).

Why it matters: Filed before significant miniaturization and cost reduction of medical-grade pumps and sensors. Modern components could enable a more portable and affordable device.

Status: ExpiredProtection ended and was never renewed
How hard to build: SpecializedNeeds pump, pressure sensors, control logic, medical dressing.

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