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Nebulizer

  • US 5,435,282 A
  • Filed: 05/19/1994
  • Issued: 07/25/1995
  • Est. Priority Date: 05/19/1994
  • Status: Expired due to Term
First Claim
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1. An inhalation responsive nebuliser surrounded by ambient air and comprising:

  • a hollow housing having proximal and distal ends and an air flow path extending therebetween;

    a mouthpiece attached to the distal end of said housing at which a patient'"'"'s inhalation draws a supply of the ambient air distally through the air flow path of said housing and into said mouthpiece;

    an emitter mesh located within said housing and communicating with said mouthpiece;

    cartridge means in which to store a fluid medication, said cartridge means including a piston located at one end thereof;

    means to deliver a supply of said fluid medication from said cartridge means to said emitter mesh; and

    electric drive circuit means including electrical switch means, said electrical switch means responsive to the supply of ambient air drawn through the air flow path of said housing for connecting said drive circuit means to said emitter mesh and causing said emitter mesh to vibrate, whereby the fluid medication delivered to said emitter mesh from said cartridge means passes through said mesh as a mist to be mixed with the supply of ambient air in said mouthpiece.

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