ANALYSIS IMPLEMENT WITH OPENING IN INSULATION FILM

• US 20100051456A1
• Filed: 11/10/2009
• Published: 03/04/2010
• Est. Priority Date: 06/19/2003
• Status: Active Grant

• Current Assignee: ARKRAY, Inc
• Original Assignee: ARKRAY, Inc
• Inventors: Kobayashi, Taizo
• Granted Patent: US 8,617,368 B2
• Time in Patent Office: Days
• US Class Current: 204/403.10
• CPC Class Codes: B01L 2200/16 Reagents, handling or storing thereof
• CPC Class Codes: B01L 2300/0645 Electrodes
• CPC Class Codes: B01L 2300/0825 Test strips
• CPC Class Codes: B01L 2400/0406 capillary forces
• CPC Class Codes: B01L 2400/0688 surface tension valves, capillary stop, capillary break
• CPC Class Codes: B01L 2400/086 using baffles or other fixed flow obstructions
• CPC Class Codes: B01L 3/502707 characterised by the manufacture of the container or its components by shaping or joining plastic parts B29C59/00, B29C65/00; by laminating B32B37/00; manufacture of microstructural devices in general B81C
• CPC Class Codes: B01L 3/502738 characterised by integrated valves microvalves F16K99/0001
• CPC Class Codes: B01L 3/52 Containers specially adapted for storing or dispensing a reagent B01L3/02 takes precedence; containers for medical or pharmaceutical purposes A61J1/00; containers in general B65D; storing or dispensing test elements G01N33/4875; automated reagent dispensing G01N35/1002
• CPC Class Codes: G01N 27/3272 Test elements therefor, i.e. disposable laminated substrates with electrodes, reagent and channels optical biosensors G01N33/52

Abstract

The present invention relates to an analytical tool (X) which includes a substrate (1), a flow path for moving a sample along the substrate (1), a reagent portion (14) provided in the flow path, and an insulating film (13) covering the substrate (1) and including an opening (15a) for defining a region for forming the reagent portion (14). The insulating film (13) further includes at least one additional opening (15b) positioned in a longitudinal direction (N1) relative to the opening (15a). For instance, the flow path is configured to move the sample by capillary force.

Claims

1-16. -16. (canceled)

17. An analytical tool with opening in insulating film, the tool comprising:

a substrate;

a flow path for moving a sample along the substrate;

a reagent portion provided in the flow path;

an insulating film covering the substrate and including a first opening defining a region for forming the reagent portion and at lest one additional opening positioned downstream from the first opening in a movement direction in which the sample moves, said at least one additional opening being connected to the first opening; and

a stopper portion including a control edge defining a downstream edge of the region for forming the reagent portion in the movement direction;

wherein at least part of said at least one additional opening is offset relative to the first opening in a direction which is perpendicular to the movement direction, and the control edge of the stopper portion is disposed at a same position as an edge of the first opening.

18. The analytical tool with opening in insulating film according to claim 17, further comprising a spacer and a cover stacked on the substrate to provide the flow path;

wherein the spacer includes a pair of surfaces defining a dimension of the flow path in a direction which is perpendicular to the movement direction and facing each other while being spaced from each other in the perpendicular direction; and

wherein the spacing between the paired facing surfaces is larger than a dimension of the first opening in the perpendicular direction.

19. The analytical tool with opening in insulating film according to claim 18, wherein the flow path is configured to move the sample by capillary force.

20. The analytical tool with opening in insulating film according to claim 19, wherein the cover includes a discharge port for discharging gas from within the flow path;

and

wherein a downstream end of the first opening in the movement direction is positioned upstream from an upstream end of the discharge port in the movement direction.