Penetrable cap

B - Operations – Transporting – 01 – L

Patent

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Details

B01L 3/00 (2006.01) C12M 1/26 (2006.01)

Patent

CA 2442176

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 concerne un bouchon qui peut constituer une obturation étanche avec un récipient à extrémité ouverte capable de recevoir et de contenir des spécimens de fluide ou autre substances pour à être analysés. Afin de minimiser un contact contaminant éventuel entre l'échantillon de fluide et les humains ou le milieu, l'invention propose un bouchon présentant un opercule frangible apte à être perforé par la pointe d'une pipette en matière plastique ou tout autre dispositif de transfert de fluide. Le bouchon comporte en outre des moyens de filtrage permettant de limiter la dissémination d'un aérosol ou de bulles une fois que l'opercule a été perforé. Les moyens de filtrage sont disposés entre l'opercule frangible et des moyens de retenue. Les moyens de retenue sont disposés sur le bouchon au-dessus des moyens de filtrage et peuvent servir à contenir les moyens de filtrage au sein du bouchon. Les moyens de retenue peuvent être réalisés en un matériau susceptible d'être perforé par un dispositif de transfert de fluide.

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