Penetrable cap

G - Physics – 01 – N

Patent

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Details

G01N 1/00 (2006.01) B01L 3/00 (2006.01) B01L 3/02 (2006.01) B32B 15/08 (2006.01) G01N 1/14 (2006.01) G01N 1/28 (2006.01) C12M 1/24 (2006.01) C12M 1/28 (2006.01) C12Q 1/68 (2006.01)

Patent

CA 2643398

The present invention relates to a cap which can form an essentially leak- proof seal with an open-ended vessel capable of receiving and holding fluid specimens or other materials for analysis. To minimize potentially contaminating contact between a fluid sample present in the vessel and humans or the environment, the present invention features a cap having a frangible seal which is penetrable by a plastic pipette tip or other fluid transfer device. The cap further includes filtering means for limiting dissemination of an aerosol or bubbles once the frangible seal has been pierced. The filtering means is positioned between the frangible seal and retaining means. The retaining means is positioned on the cap above the filtering means and may be used to contain the filtering means within the cap. The retaining means may be comprised of a material which is penetrable by a fluid transfer device.

La présente invention a pour objet un capuchon qui peut tenir lieu de capsule principalement étanche et un contenant muni d'une ouverture dans lequel déverser et conserver des spécimens liquides ou autres matériaux aux fins d'analyses. Afin de minimiser les risques de contamination entre un échantillon de liquide dans un contenant et les humains ou l'environnement, la présente invention prévoit un capuchon muni d'une capsule frangible qui peut être percée au moyen de l'extrémité d'une pipette de plastique ou d'un autre dispositif de transfert de liquide. Le capuchon comporte également un filtre qui limite la dispersion d'aérosol ou de bulles après que la capsule frangible a été percée. Le filtre est placé entre la capsule frangible et le dispositif de rétention. Ce dernier est situé sur le capuchon, au-dessus du filtre qu'il retient en place à l'intérieur du capuchon. Le dispositif de rétention peut être fait d'un matériau qu'un dispositif de transfert de liquide est capable de percer.

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