The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 12, 1994
Filed:
May. 20, 1991
David R Williams, San Diego, CA (US);
Mark B Mecikalski, Tucson, AZ (US);
David O Thueson, Poway, CA (US);
Dura Pharmaceuticals, Inc., San Diego, CA (US);
Abstract
An apparatus for aerosolizing a dose of powdered medicine for inhalation, comprising in combination a solid core defining a diskshaped aerosolizing chamber, the chamber defined by spaced-apart, flat front and rear walls terminated by a circumferential wall, the core including a first end piece having formed therein a hollow mouth/nose piece at the front thereof, an impeller non-concentrically disposed in the chamber mounted on a shaft for high-speed powered rotation about a fixed axis, a plunger for instantaneously introducing a full dose of powdered medicine into the aerosolizing chamber so that all particles thereof are available for intermixing disaggregation and comminution, an aperture for receiving a first stream of air interior the core and passing it towards the mouthpiece for inhalation by the user, and, a wall having formed therein at least one aperture for diverting a portion of the first stream into a second stream of air for sweeping through the aerosolizing chamber to mix with the particles to form a fine, low-density, low-velocity, dry mist of powdered medicine for inhalation by the user.