Penetrable cap
DCFirst Claim
1. A cap comprising:
- a core structure comprising a closed side wall adapted to grip an open-ended vessel and having an opening formed therein; and
axially aligned first and second frangible seals affixed to the core structure, the first frangible seal being situated beneath the second frangible seal in a spaced-apart relationship and covering the opening in the core structure so as to provide a fluid barrier, wherein the first and second frangible seals are constructed and arranged to remain affixed to the core structure when penetrated by a fluid transfer.
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Accused Products
Abstract
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 cap has a frangible seal which is penetrable by a plastic pipette tip or other fluid transfer device. The cap further includes a filter for limiting dissemination of an aerosol or bubbles once the frangible seal has been pierced. The filter is positioned between the frangible seal and a retainer. The retainer is positioned on the cap above the filter and may be used to contain the filter within the cap. The material of the retainer may be penetrable by a fluid transfer device.
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Citations
21 Claims
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1. A cap comprising:
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a core structure comprising a closed side wall adapted to grip an open-ended vessel and having an opening formed therein; and axially aligned first and second frangible seals affixed to the core structure, the first frangible seal being situated beneath the second frangible seal in a spaced-apart relationship and covering the opening in the core structure so as to provide a fluid barrier, wherein the first and second frangible seals are constructed and arranged to remain affixed to the core structure when penetrated by a fluid transfer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification