Surgery – Liquid medicament atomizer or sprayer – Gas stream aspirating medicament from reservoir
Patent
1991-07-12
1994-01-11
Burr, Edgar S.
Surgery
Liquid medicament atomizer or sprayer
Gas stream aspirating medicament from reservoir
12820312, 12820421, 12820019, 12820314, A61M 1100, A61M 1610, A61M 1500, B05B 700
Patent
active
052771750
ABSTRACT:
A continuous flow nebulizing device for patients receiving long term nebulized medicant respiratory therapy. The nebulizing device comprises a nebulizer vial through which nebulizing fluids are delivered from a large supply vessel to conventional nebulizing apparatus. Thereby, the nebulizing apparatus connected to the continuously replenished nebulizer vial, delivers a larger volume of nebulized medicants on a continuous basis to a patient than can be provided by a conventional nebulizer vial without removing the conventional nebulizer vial from the nebulizer. For critially ill patients, the nebulizing device is used as part of a nebulizer/ventilator circuit. For voluntary respiratory patients, the nebulizer device output is used without a ventilator. Medicant supplying circuits are provided whereby a single medicant is selectably delivered from a plurality of large supply vessels without disconnecting the nebulizing vial from the nebulizer. Liquid level control circuits are provided whereby the level of liquid in the nebulizer vial is electrically or fluidically controlled. Nebulizing gas flow, synchronized with inhalation and exhalation rates, provides a plurality of options of aerosolized mist production patterns. Such synchronization is defined by a ventilator. An add-site device which provides direct access by a syringe needle into the nebulizer vial for addition of medicants and withdrawal of fluid is disclosed. Adjustable temperature control is provided for ventilating and nebulizeable fluids.
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Mangum Barry
Riggs John H.
Asher Kimberly L.
Burr Edgar S.
Hultquist Steven J.
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