Title:
バイアル用ゴム栓
Document Type and Number:
Japanese Patent JP5479104
Kind Code:
B2
Abstract:
There is provided a rubber stopper used to seal an opened portion of vials and syringes for keeping medical liquid and, in particular, to a rubber stopper in which stoppering properties can be improved without damaging sealing properties in the absence of silicone coating. A vial rubber stopper 1 comprises a disc-like top portion 3 and a cylindrical leg portion 2 of smaller diameter compared with that of the disc-like top portion, which is protruded from a bottom surface of the disc-like top portion 3 to shape into a flange 2A upward. An under-flange ring portion 3A connected to a flange bottom surface 2B is divided on an outer peripheral surface of the cylindrical leg portion 2, and the first ring-like raised portion 3B and the second ring-like raised portion 3C are formed downward of the under-flange ring portion 3A in the circumferential direction. An upper surface of the disc-like top portion 3 including a flange-upper surface, a maximum diametral portion of a flange-peripheral surface, a bottom surface of the disc-like top portion 3 located inside of the cylindrical leg portion 2 and a surface of the cylindrical leg portion 2 other than the under-flange ring portion 3A are laminated with a synthetic resin to leave the flange bottom surface and the surface of the under-flange ring portion 3A as a naked rubber stock.
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| JPH0633104 | [Title of Invention] Sealed Container |
Inventors:
High waist
Shindou Sudo
Shindou Sudo
Application Number:
JP2009538288A
Publication Date:
April 23, 2014
Filing Date:
October 20, 2008
Export Citation:
Assignee:
Daikyo Seiko Co., Ltd.
International Classes:
B65D39/04; A61J1/05
Domestic Patent References:
| JPH0698921A | 1994-04-12 | |||
| JP2003128095A | 2003-05-08 | |||
| JPH10203546A | 1998-08-04 | |||
| JPS63296756A | 1988-12-02 | |||
| JPS6217545U | 1987-02-02 | |||
| JPH0340297Y2 | 1991-08-23 |
Attorney, Agent or Firm:
Toshiko Hiraishi