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. 20, 2003
Filed:
Aug. 30, 2000
Hideo Anraku, Shinnanyo, JP;
Ryusuke Okamoto, Shinnanyo, JP;
Sekisui Chemical Co., Ltd., Osaka, JP;
Abstract
A closure structure is provided for a vacuum specimen collection container which can maintain a vacuum pressure within the specimen collection tube and which includes a needle cannula penetrating portion having needle hole sealability. The closure structure can be detachably fitted in an open end of a specimen collection container in an airtight manner to maintain a vacuum condition within the specimen collection container. The closure structure includes a grip section, a rubber elastic needle cannula penetrating portion disposed to fill up a through-hole in a grip section and a rubber elastic fitting portion configured to follow an interior surface profile of an open end of a specimen collection container, thereby to fit therein in a airtight fashion. The grip section has a higher rigidity relative to the needle cannula penetrating portion and the fitting portion. A tubular side wall of a grip section has on its inner side at least one raised portion or recessed portion to prevent kickback.