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:
Jul. 01, 2014
Filed:
Jun. 08, 2011
Takashi Asai, Osaka, JP;
Tsutomu Takahashi, Osaka, JP;
Kenyu Ito, Osaka, JP;
Atsushi Ishikawa, Osaka, JP;
Takashi Asai, Osaka, JP;
Tsutomu Takahashi, Osaka, JP;
Kenyu Ito, Osaka, JP;
Atsushi Ishikawa, Osaka, JP;
Nipro Corporation, Osaka-shi, JP;
Abstract
In a pre-filled syringe having an intermediate gasket, a liquid drug is enclosed in the second chamber located on the base end side with respect to the intermediate gasket while a powdered drug is enclosed in the first chamber located on the front end side with respect to the intermediate gasket. The intermediate gasket has at least two layers including a front end layer corresponding to a wall of the first chamber and a base end layer corresponding to a wall of the second chamber, and also has a low water-absorptive layer in the layer on the base end side with respect to the front end layer. The base end layer is formed of a material having low water-absorptivity and not lowering a pH of the liquid drug.