Microplate assembly
First Claim
1. A microplate assembly for use in analyzing samples captured on a filter medium having an upper and lower surface, comprising:
- a holding tray having a recessed surface and side walls connected to said recessed surface, said holding tray receiving therein the filter medium with the lower surface adjacent to said recessed surface of said holding tray;
a collimator abutting the upper surface of the filter medium, said collimator being disposed substantially parallel to said recessed surface of said holding tray, said collimator having wells formed therein for surrounding the samples on the filter medium; and
variably relatively positionable cooperating engagement means formed on said collimator and said holding tray for maintaining said collimator and said holding tray in an assembled condition in one of at least two relative positions, dependent upon the thickness of said filter medium, with said filter medium engaged between the wells of said collimator and the recessed surface of said holding tray, so as to accommodate filter mediums over a range of thicknesses.
1 Assignment
0 Petitions
Accused Products
Abstract
A microplate assembly for use in analyzing samples captured on a filter medium comprises a holding tray and a collimator having multiple sample wells. These elements are generally rectangular in shape and are sized to stack on top of one another. The filter medium is positioned within the holding tray and the holding tray is positioned within the collimator with the filter medium positioned beneath the collimator. To prepare samples in the microplate assembly for analysis, the samples are captured on the filter medium and the filter medium is placed in the holding tray. After adding scintillation cocktail or luminescent substrate to the filter medium, the collimator is placed over the holding tray with the filter medium positioned between the collimator and the holding tray and the samples disposed in the sample wells. The holding tray, the filter medium and the collimator are provided with complementary keyed corners to facilitate alignment of these elements relative to one another. The wells of the collimator include respective lower rims protruding into the filter medium to minimize crosstalk through the filter medium. The collimator and holding tray include structure for defining multiple positions of engagement with each other for accommodating filters of different thicknesses.
65 Citations
22 Claims
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1. A microplate assembly for use in analyzing samples captured on a filter medium having an upper and lower surface, comprising:
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a holding tray having a recessed surface and side walls connected to said recessed surface, said holding tray receiving therein the filter medium with the lower surface adjacent to said recessed surface of said holding tray; a collimator abutting the upper surface of the filter medium, said collimator being disposed substantially parallel to said recessed surface of said holding tray, said collimator having wells formed therein for surrounding the samples on the filter medium; and variably relatively positionable cooperating engagement means formed on said collimator and said holding tray for maintaining said collimator and said holding tray in an assembled condition in one of at least two relative positions, dependent upon the thickness of said filter medium, with said filter medium engaged between the wells of said collimator and the recessed surface of said holding tray, so as to accommodate filter mediums over a range of thicknesses. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification