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Nebulizer

  • US 5,086,765 A
  • Filed: 08/29/1990
  • Issued: 02/11/1992
  • Est. Priority Date: 08/29/1990
  • Status: Expired due to Term
First Claim
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1. A nebulizer for administering medicine to a patient, comprising:

  • a tubular body having an inspiratory end portion, an opposing air inlet end portion and a central portion disposed between said inspiratory and said inlet end portions;

    a cap connected to said central portion and having a gas inlet nipple;

    one-way valve means for controlling the flow of fluid through said central portion from said inspiratory and said inlet end portions;

    a vial configured for connection to said cap and being in fluid communication with said central portion, said vial adapted to retain a supply of medicine therein;

    nebulizing means for creating an aerosol of the medicine, said nebulizing means including a plurality of baffle members and being disposed on said tubular body so as to be in fluid communication with said vial and said central portion;

    said nebulizing means further including a female jet member having an upper end with a vertically projecting annular ring defining a socket, said socket sealingly engaging a depending boss of said cap to define a mixing chamber having a jet orifice in a bottom surface thereof;

    a siphon port depending from said bottom surface and being in fluid communication with said mixing chamber;

    a primary baffle member integrally joined to said siphon port;

    a siphon tube engaged in said siphon port for drawing medicine from the vial;

    said mixing chamber adapted to receive gas from said inlet nipple and to mix the gas with medicine drawn through said siphon tube and to emit the mixture through said orifice; and

    said primary baffle disposed coaxially with said orifice and disposed in spaced relationship below said orifice to fragment droplets of the mixture emitted therefrom.

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