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US 2009/0013997 A1Published application
Inhalant exposure system
OwnerRoy Edmund Barnewall, Richard Scott Tuttleinventors
Life of this patent
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Abstract
An inhalant exposure unit and system that provides controlled flow of inhalant to an animal with a breathing system that provide controlled exposure of inhalant, minimized breathing of exhaled air and control of exhaust flow.
Claims25
An inhalant exposure unit comprising:
- a. a housing concentrically positioned around a central axis having an inlet and an outlet;
- b. a face plate positioned vertically to the central axis at the outlet of the housing, wherein the outlet of the housing and a surface of the face plate are separated by a distance D1 comprising an annular outlet between the outlet of the housing and the surface of the face plate;
- and
- d. an opening in the face plate for admitting at least a portion of an animal's head into the housing.
1 more element
An inhalation exposure system for treatment of a patient comprising;
- a. an inhalation generator for providing an aerosol or powder;
- b. an inhalation exposure unit having an inlet connected to the inhalation generator comprising:
- 1. a tapered exposure chamber having a narrow and a wide end, with the inlet at the narrow end of the chamber and having a port at the wide end of the chamber that accommodates at least a part of a patient's head for breathing from the exposure chamber;
- 2. an exhaust passage, having an inlet connected to the wide portion of the tapered exposure chamber, and having an outlet;
- 3. a flow restrictor in the exhaust passage;
- and
- c. a vacuum unit that provides a vacuum at the outlet of the exhaust passage.
4 more elements
Dependencies are inferred from the claim text.