Polyolefinic closures comprising penetrable plugs and annular channels
AssigneePharmacia Corporation
InventorsGunnar Andersson, Des Mulligan
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Abstract
The invention relates to pharmaceutical closures for containers made of flexible polyolefinic materials which are suitable to be filled with parentally administrable fluids prior to their sealing and sterilization. The polyolefinic closures have an excellent resealing capacity after being penetrated by a piercing device for establishing fluid communication with the container, even after multiple entries into the container.
Claims7
A pharmaceutical closure comprising a carrier and a penetrable plug, both comprising a recyclable polyolefinic material;
- said carrier coaxially enclosing said penetrable plug comprising further an elastomer component;
- and
- wherein said carrier comprises a narrow annular channel extending axially along the inner periphery of its upper part.
A pharmaceutical closure comprising a carrier and a penetrable plug, both comprising a recyclable polyolefinic material;
- said carrier coaxially enclosing said penetrable plug comprising further an elastomer component;
- said closure having a resilient capacity which when punctured with a 0.6 mm cannula, does not allow air to escape through said puncture when tested with an internal overpressure of 15 kPa for 15 seconds;
- and
- wherein said carrier comprises a narrow annular channel extending axially along the inner periphery of its upper part.
Dependencies are inferred from the claim text.