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:
Aug. 01, 2017
Filed:
Jun. 26, 2013
Becton Dickinson France, Le Pont de Claix, FR;
Romain Lanier, Veurey-Voroize, FR;
Becton Dickinson France, Le Pont de Claix, FR;
Abstract
The invention relates to a medical injection device comprising a container body () and a stopper () in gliding engagement within the container body () for expelling a fluid () through an opening of said container body (), wherein: —at least the distal portion () of the stopper () that is in contact with the fluid () is made of a thermoplastic polyolefin, —the stopper () further comprises at least one O-ring (') maintained in at least one peripheral groove (′), —said O-ring (′) is made of a butyl-type rubber; and —the cross-section of said peripheral groove (′) is designed so as to compress both axially and radially the O-ring () when said O-ring () is engaged in the peripheral groove () between the stopper () and the inner wall () of the container body ().