| 摘要 |
PCT No. PCT/SE84/00195 Sec. 371 Date Jan. 17, 1985 Sec. 102(e) Date Jan. 17, 1985 PCT Filed May 21, 1984 PCT Pub. No. WO84/04672 PCT Pub. Date Dec. 6, 1984.Device for ventilating and pressure balancing the interior of a sealed vessel (91) 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). |
