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:
May. 17, 2005
Filed:
Mar. 21, 2001
Applicants:
Per Helgesson, Lund, SE;
Douglas Jennings, Royston, GB;
Craig Nelson, Baldock, GB;
Inventors:
Assignee:
AstraZeneca AB, Sodertalje, SE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61M015/00 ;
U.S. Cl.
CPC ...
Abstract
The present invention relates to an inhalation device for use with an inhaler () comprising a dispersion chamber () for fluid communication with the inhaler () and a suction chamber () in fluid communication with the dispersion chamber (). The suction chamber () is constructed to enable the internal volume of the suction chamber () to be increased during use thereby producing a negative pressure in the dispersion chamber (). In this way, the substance to be inhaled can be drawn from the inhaler into the dispersion chamber () for subsequent inhalation.