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. 26, 2015
Filed:
Apr. 16, 2012
Yukihiro Ogawa, Ibaraki, JP;
Yasuyuki Shiraishi, Ibaraki, JP;
Taiji Horita, Ibaraki, JP;
Ichiro Suzuki, Nagoya, JP;
Yukihiro Ogawa, Ibaraki, JP;
Yasuyuki Shiraishi, Ibaraki, JP;
Taiji Horita, Ibaraki, JP;
Ichiro Suzuki, Nagoya, JP;
Taisei Kako Co., Ltd., , JP;
Abstract
In a prefilled syringe including an elastic seal member to be pierced with a needle for use to eject a protein pharmaceutical preparation therefrom, the elastic seal member ensures smooth and reliable piercing thereof with the needle while reliably preventing an active substance of the protein pharmaceutical preparation from being adsorbed thereon. When a protective film () is laminated to a top surface of a seal body () of an elastic material, the protective film () is stretched to a greater extent by a recess () provided in the top surface. Further, the piercing portion to be pierced with the needle is provided in a bottom of the recess (). Thus, the protective film () is formed as locally having a smaller thickness in the piercing portion.