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:
Sep. 10, 2013
Filed:
May. 22, 2008
Masaya Kobayashi, Yokohama, JP;
Masaya Kobayashi, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The present invention prevents liquid droplets from colliding with each other and prevents changes in the liquid droplet size, and prevents degeneration of medicinal solutions from occurring in the center portion where the flow rate of the airflow is maximum inside the airflow path. Inside an inhalation flow path of a flow path mouthpiece unit having a mouthpiece at one end, a cylindrical structure is disposed, and the cross-section of the inhalation flow path is made ring-shaped. The surface of the structure is provided with medicine ejection portions, and the medicinal liquids are supplied from a reservoir provided inside the structure. Even when the medicine ejection portions are simultaneously driven, this structure prevents the liquid droplets from colliding with each other to change the liquid droplet size and the like.