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Medicament nebulizer with improved aerosol chamber

  • US 5,170,782 A
  • Filed: 09/12/1991
  • Issued: 12/15/1992
  • Est. Priority Date: 09/12/1991
  • Status: Expired due to Fees
First Claim
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1. An improved aerosol chamber for use with an ultrasonic nebulizer base comprising a generally cylindrically shaped housing having a top surface containing an air inlet and a curved side wall containing an outlet, a mist tube having an axis and depending axially from said top surface to at least as far as a bottom of said outlet to form an annular space defining a curved flow path along said side wall between said mist tube and said housing, said mist tube surrounding said air inlet, means for mounting said housing on the nebulizer base whereby a geyser of nebulized medicament erupts from the base axially upwardly into said mist tube, said mist tube having a passage formed in a wall of said mist tube to face said curved housing side wall diametrically opposite said outlet whereby air flow from said air inlet to said outlet passes downwardly through said mist tube to entrain nebulized medicament droplets and then flows through said mist tube passage and along said curved path to said outlet.

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