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. 31, 2022
Filed:
May. 24, 2019
Applicants:
Pedram Taghavi, Coquitlam, CA;
Siamak Arzanpour, North Vancouver, CA;
Shahab Azimi, Burnaby, CA;
Inventors:
Pedram Taghavi, Coquitlam, CA;
Shahab Azimi, Burnaby, CA;
Siamak Arzanpour, North Vancouver, CA;
Fereidoon Rashidi, Port Moody, CA;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61M 15/00 (2006.01);
U.S. Cl.
CPC ...
A61M 15/0088 (2014.02); A61M 15/002 (2014.02); A61M 15/009 (2013.01); A61M 15/0021 (2014.02);
Abstract
A device, called expandable spacer, for improving the efficacy of drug delivery in metered dose inhalers is described. The device has a body made of flexible (might be expandable) material. It can shrink in size when it is not in use and can go back to its normal shape and size when it is used. The device further comprises a valve (can be one way valve) that helps the drug to be maintained inside the spacer's cavity and opens during inhalation and closes during exhalation.