Test card for performing assays

Patent 5075077 Issued on December 24, 1991. Estimated Expiration Date:

December 24, 2008. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

2190745

2278339

3645852

Sample tray
Patent #: 3938961
Issued on: 02/17/1976
Inventor: Lanier

In vitro method for determining allergic hypersensitivity
Patent #: 3941876
Issued on: 03/02/1976
Inventor: Marinkovich

Apparatus and process for determining the susceptibility of microorganisms to antibiotics
Patent #: 3957583
Issued on: 05/18/1976
Inventor: Gibson , et al.

Enzymatic immunological method for the determination of antigens and antibodies
Patent #: 4016043
Issued on: 04/05/1977
Inventor: Schuurs, et al.

In vitro method for determining allergic hypersensitivity
Patent #: 4031197
Issued on: 06/21/1977
Inventor: Marinkovich

Ultrasonic paper welding
Patent #: 4149288
Issued on: 04/17/1979
Inventor: Sendor , et al.

Apparatus and method for vibration sealing
Patent #: 4159220
Issued on: 06/26/1979
Inventor: Bosche , et al.

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Inventors

Application

No. 227272 filed on 08/02/1988

US Classes:

422/56, Having reagent in absorbent or bibulous substrate422/57, Having coated reagent422/58, In holder or container having special form422/941, With identification means, e.g., coded [B01L 3/00C2B]435/805, TEST PAPERS436/170Plural superposed layers

Examiners

Primary: Johnston, Jill

Attorney, Agent or Firm

Wong; Wean Khing, Porembski; Priscilla E.

Foreign Patent References

0063810 EP. 03/13/1982
8703965 WO. 07/13/1987

International Class

G01N 031/22

Abstract

A semi-automated biological sample analyzer and subsystems are provided to simultaneously perform a plurality of enzyme immuno assays for human IgE class antibodies specific to a panel of preselected allergens in each of a plurality of biological samples. A carousel is provided to position and hold a plurality of reaction cartridges. Each reaction cartridge includes a plurality of isolated test sites formed in a two dimensional array in a solid phase binding layer contained within a reaction well which is adapted to contain a biological sample to be assayed. The carousel and cartridges contain structures which cooperate to precisely position the cartridges in each of three separate dimensions so that each cartridge is positioned uniformly. An optical reader operating on a principle of diffuse reflectance is provided to read the results of the assays from each test site of each cartridge. Also provided is a subsystem which provides predetermined lot-specific assay calibration data which is useful for normalizing the results of various assays with respect to predetermined common standard values.