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High-frequency fan ventilator

  • US 5,611,335 A
  • Filed: 06/06/1995
  • Issued: 03/18/1997
  • Est. Priority Date: 06/06/1995
  • Status: Expired due to Fees
First Claim
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1. A ventilator, comprising:

  • a ventilation chamber having containment walls, a base and a ventilation port for directing gases to and from a patient;

    a fan, disposed at the base of the ventilation chamber, the fan having a shaft for holding fan arms, the shaft of the fan having a lumen through the length thereof, the lumen connecting the inside of the ventilation chamber to outside air and providing a port for exhaled gases; and

    a fan rotator, coupled to the fan, for rotating the fan at a selectable velocity, the rotation of the fan providing positive and negative helical waves for inspiration and expiration.

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