Methods for applying a reagent to an analytical test device
First Claim
Patent Images
1. A method for applying a reagent to a test device comprising:
- (a) providing a test device comprising a substrate and a test pad attached to the substrate;
(b) providing a fluid delivery system comprising a nozzle and a flexible restrictor attached to the nozzle for delivery of a reagent from the nozzle to the test pad;
(c) applying a reagent comprising an indicator system and an oxidase enzyme or a peroxidase enzyme in a predetermined amount and at a predetermined pressure through the nozzle and the flexible restrictor to the test pad.
5 Assignments
0 Petitions
Accused Products
Abstract
This invention provides methods and apparatus for applying a reagent to an analytical test device. The methods and apparatus employ a nozzle and a flexible restrictor to accurate control the amount of reagent applied to the test device. The analytical test devices prepared by the methods of this invention are used to determine the presence or the quantity of an analyte in a liquid sample, such as whole blood.
181 Citations
20 Claims
-
1. A method for applying a reagent to a test device comprising:
-
(a) providing a test device comprising a substrate and a test pad attached to the substrate; (b) providing a fluid delivery system comprising a nozzle and a flexible restrictor attached to the nozzle for delivery of a reagent from the nozzle to the test pad; (c) applying a reagent comprising an indicator system and an oxidase enzyme or a peroxidase enzyme in a predetermined amount and at a predetermined pressure through the nozzle and the flexible restrictor to the test pad. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. An apparatus for applying a reagent to a test device comprising a substrate and a test pad, said apparatus comprising:
-
(a) a fluid delivery system comprising a nozzle and a flexible restrictor for delivery of the reagent to the test pad; (b) a support positioned under the fluid delivery system for supporting the test device; and (c) means for moving the test device under the fluid delivery system. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
-
Specification