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Pulmonary dosing system and method

  • US 6,805,118 B2
  • Filed: 08/02/2001
  • Issued: 10/19/2004
  • Est. Priority Date: 03/05/1998
  • Status: Expired due to Fees
First Claim
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1. A pulmonary dosing system for supplying to a patient capable of normal breathing without mechanical assistance a predetermined amount of respirable therapeutically active material, said system comprising a patient interface connected to a flexible inhalation tube and a flexible exhalation tube;

  • a check valve provided in association with said exhalation tube to prevent inhalation therethrough;

    a first filter having an inlet and an outlet;

    said exhalation tube being connected to said inlet of said first filter;

    said outlet of said first filter being in fluid communication with the atmosphere;

    an apparatus for providing pulsed amounts of said therapeutically active material aerosolized in filtered atmospheric air;

    said inhalation tube being connected to said apparatus; and

    a means for pulsing air to entrain said therapeutically active material in a cycle which is triggered by and is synchronous with said patient'"'"'s unassisted exhalations, for inhalation in conjunction with patient'"'"'s natural breathing;

    said pulmonary dosing system designed solely for use independent of a respirator or ventilator.

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