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:
Feb. 05, 2013
Filed:
Sep. 12, 2005
Michael King, Durham, NC (US);
Jeffrey Alan Warden, Raleigh, NC (US);
Patrick D. Lopath, Stamford, CT (US);
Richard D. Laroche, Thetford Center, VT (US);
Michael King, Durham, NC (US);
Jeffrey Alan Warden, Raleigh, NC (US);
Patrick D. Lopath, Stamford, CT (US);
Richard D. LaRoche, Thetford Center, VT (US);
Oriel Therapeutics, Inc., Durham, NC (US);
Abstract
The disclosure describes methods and inhalers that deagglomerate dry powder using inspiratory effort of a user of an inhaler. Inhaler fin and mesh configurations are described that facilitate deagglomeration. At least in steady state conditions, a dry powder and airflow pattern can be generated having turbulence with flow vortices, some of which may have a vortex having an axis of rotation that extends in an inspiratory flow direction while others may have a vortex that is substantially orthogonal to the inspiratory flow direction in an inspiratory airflow path, as an amount of dry powder travels through the inhaler to thereby deagglomerate the dry powder without trapping undue amounts of the dry powder during inhalation.