Multiwell test plate
First Claim
1. Filtration apparatus comprising, in combination:
- a substantially flat, thermoplastic culture tray having at least one well therein extending between open ends on opposite flat surfaces of said tray;
a substantially flat, thermoplastic harvester tray having at least one opening therethrough, said harvester tray being disposed with respect to said culture tray so that each said opening is adjacent and registered with each said well;
filtration means extending across each said opening; and
barrier means formed as a fluid-impervious wall circumscribing and joining together the peripheries of each registered well and opening, said wall being formed of the thermoplastic material of said trays.
2 Assignments
0 Petitions
Accused Products
Abstract
A micro-titre test plate includes a thermoplastic incubation tray having an array of a plurality of wells extending therethrough, a filter, and a thermoplastic harvester tray for supporting the filter sheet. The harvester tray has a plurality of apertures therethrough arranged to be registerable with the bottoms of the wells in the incubation tray. To prevent cross-talk between the wells along the filter, the facing surfaces of the harvester tray and incubation tray are provided with mating ridges and grooves circumscribing the juncture of each well and aperture. In one embodiment, the ridges and grooves are thermally bonded to one another to provide a fluid-impervious barrier trapping respective filter disks in the juncture of each well and aperture. In another embodiment, the harvester tray is formed of a pair of apertured, thermoplastic sheets nested with respective thermally bonded grooves and ridges to trap the filter, the harvester tray being not necessarily bonded to the incubation tray.
215 Citations
8 Claims
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1. Filtration apparatus comprising, in combination:
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a substantially flat, thermoplastic culture tray having at least one well therein extending between open ends on opposite flat surfaces of said tray; a substantially flat, thermoplastic harvester tray having at least one opening therethrough, said harvester tray being disposed with respect to said culture tray so that each said opening is adjacent and registered with each said well; filtration means extending across each said opening; and barrier means formed as a fluid-impervious wall circumscribing and joining together the peripheries of each registered well and opening, said wall being formed of the thermoplastic material of said trays. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification