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:
Jun. 12, 2012
Filed:
Jun. 26, 2007
Patrick Alexandre, Gray, FR;
Patrick Alexandre, Gray, FR;
Crossject, , FR;
Abstract
The present invention relates to a needleless injection device () comprising a reservoir (), obturated by an upstream stopper () and a downstream stopper () between which a liquid active principle () is accommodated, and a receptacle () comprising at least one injection conduit (), said receptacle comprising a cavity () whose height is equal to the distance traveled by the downstream stopper before each injection conduit is opened, —the height of the cavity in millimeters being between a minimum height and a maximum height, respectively defined by the following relationships, •minimum height=3, •maximum height=15×exp. (−(V/9))+10, where V is the initial speed of ascent of the pressure profile expressed in bar per microsecond, —the ratio between the length of each injection conduit and the height of the cavity being between 1 and 2.