Disintegratable films for diagnostic devices
First Claim
1. A disintegratable film for a diagnostic device comprising:
- a first water soluble component having a molecular weight less than about 60,000 daltons;
a second water soluble component having a molecular weight greater than about 60,000 daltons; and
at least one reagent,wherein the film is in the form of a monolayer of a thickness sufficient to disintegrate upon contact with an aqueous fluid to release the reagent; and
wherein the at least one reagent reacts with chorionic gonadotropin.
3 Assignments
0 Petitions
Accused Products
Abstract
The invention provides disintegratable film compositions for diagnostic test devices. The films are prepared with a combination of components that yield films of sufficient film strength and desired disintegration profiles. A disintegratable film according to the present invention contains a water soluble high molecular weight component, a water soluble low molecular weight component, and one or more reagents for use in a diagnostic device. Optionally, the films further contain a starch component, a glucose component, a plasticizer and/or a humectant, and/or a filler. The invention further provides a diagnostic testing device, which includes a film according to an embodiment of the invention, and methods of using such devices.
-
Citations
39 Claims
-
1. A disintegratable film for a diagnostic device comprising:
-
a first water soluble component having a molecular weight less than about 60,000 daltons; a second water soluble component having a molecular weight greater than about 60,000 daltons; and at least one reagent, wherein the film is in the form of a monolayer of a thickness sufficient to disintegrate upon contact with an aqueous fluid to release the reagent; and wherein the at least one reagent reacts with chorionic gonadotropin. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 39)
-
-
31. A testing device comprising:
-
a support structure; and at least one disintegratable film supported by the support structure, the disintegratable film comprising; a first water soluble polymer having a molecular weight from about 5,000 daltons to about 60,000 daltons; a second water soluble polymer having a molecular weight greater than about 60,000 daltons; and at least one reagent, wherein the film is capable of disintegrating upon contact with a disintegrating fluid; and wherein the reagent is capable of detecting the presence of human chorionic gonadotropin in the disintegrating fluid. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38)
-
Specification