국제 및 국내 특허문헌 검색

1. (WO1984004672) A PRESSURE BALANCING DEVICE FOR SEALED VESSELS

Pub. No.:    WO/1984/004672    International Application No.:    PCT/SE1984/000195
Publication Date: Fri Dec 07 00:59:59 CET 1984 International Filing Date: Tue May 22 01:59:59 CEST 1984
IPC: A61J 1/00
A61M 5/32
Applicants:
Inventors:
Title: A PRESSURE BALANCING DEVICE FOR SEALED VESSELS
Abstract:
Device for ventilating and pressure balancing the interior of a sealed vessel (1) containing a substance which is to be taken out from said vessel e.g. by an injection syringe, said vessel being provided with a closure means (2) comprising a sealing member (2) through which a puncturing member, e.g. a needle can be passed for entering the interior of said vessel. The closure means (2) or a connection means (3) attachable onto said vessel is provided with ventilating means (10; 13; 14, 15) arranged to provide a communication between the interior of the vessel (1) and a closed container or alternatively the atmosphere via a filter (16).