Microfluidic cartridge for processing and detecting nucleic acids
First Claim
1. A cartridge, configured to facilitate processing and detecting of a nucleic acid, comprising:
- a first layer, defining a sample port, a reagent port, a fluid port, and a detection chamber;
an elastomeric layer;
an intermediate substrate coupled to the first layer, such that the elastomeric layer is situated between the intermediate substrate and the first layer, wherein the intermediate substrate defines a chamber with a corrugated surface directly opposing the first layer, wherein the corrugated surface defines a set of voids external to the chamber and accessible from a direction perpendicular to a broad surface of the first layer, and wherein at least a portion of the corrugated surface includes a set of openings that provide access to the elastomeric layer; and
a fluidic pathway, wherein the fluidic pathway is fluidically coupled to the sample port, the reagent port, the fluid port, and the detection chamber.
6 Assignments
0 Petitions
Accused Products
Abstract
A microfluidic cartridge, configured to facilitate processing and detection of nucleic acids, comprising: a top layer comprising a set of cartridge-aligning indentations, a set of sample port-reagent port pairs, a shared fluid port, a vent region, a heating region, and a set of Detection chambers; an intermediate substrate, coupled to the top layer comprising a waste chamber; an elastomeric layer, partially situated on the intermediate substrate; and a set of fluidic pathways, each formed by at least a portion of the top layer and a portion of the elastomeric layer, wherein each fluidic pathway is fluidically coupled to a sample port-reagent port pair, the shared fluid port, and a Detection chamber, comprises a turnabout portion passing through the heating region, and is configured to be occluded upon deformation of the elastomeric layer, to transfer a waste fluid to the waste chamber, and to pass through the vent region.
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Citations
24 Claims
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1. A cartridge, configured to facilitate processing and detecting of a nucleic acid, comprising:
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a first layer, defining a sample port, a reagent port, a fluid port, and a detection chamber; an elastomeric layer; an intermediate substrate coupled to the first layer, such that the elastomeric layer is situated between the intermediate substrate and the first layer, wherein the intermediate substrate defines a chamber with a corrugated surface directly opposing the first layer, wherein the corrugated surface defines a set of voids external to the chamber and accessible from a direction perpendicular to a broad surface of the first layer, and wherein at least a portion of the corrugated surface includes a set of openings that provide access to the elastomeric layer; and a fluidic pathway, wherein the fluidic pathway is fluidically coupled to the sample port, the reagent port, the fluid port, and the detection chamber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A cartridge, configured to facilitate processing and detecting of a nucleic acid, comprising:
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a first layer comprising a sample port and a detection chamber; an elastomeric layer; an intermediate substrate including a set of valve guides, wherein the intermediate substrate defines a chamber with a corrugated surface directly opposing the first layer, wherein the corrugated surface defines a set of voids external to the chamber and accessible from a direction perpendicular to a broad surface of the first layer, and wherein at least a portion of the corrugated surface defines the set of valve guides with a set of openings that provide access to the elastomeric layer; and a fluidic pathway, formed by at least a portion of the first layer and a portion of the elastomeric layer, wherein the fluidic pathway is fluidically coupled to the sample port and the detection chamber and comprises a first and second branch extending downstream from a junction, and is configured to be occluded at a set of occlusion positions upon manipulation of the elastomeric layer through the set of valve guides, wherein a first occlusion position of the set of occlusion positions is positioned along the fluidic pathway downstream of the junction and upstream of the first branch and a second occlusion position of the set of occlusion positions is positioned along the fluidic pathway downstream of the junction and upstream of the second branch, wherein the set of occlusion positions comprises a normally open position and a normally closed position, wherein the normally open position comprises a first surface of the fluidic pathway at the first layer and a second surface of the fluidic pathway at the elastomeric layer, wherein a void defined between the first surface and the second surface is configured to transition to a closed state upon occlusion by an occluding object applied to the elastomeric layer during operation; wherein the normally closed position is defined by a region of the fluidic pathway, at the first layer that extends toward and abuts the elastomeric layer in preventing fluid bypass at the region; wherein a first truncated pathway, including the normally open position and the first branch and excluding the second branch, is defined upon manipulation of the fluidic pathway at the first and second occlusion positions, and wherein a second truncated pathway, including the normally closed position and the second branch and excluding the first branch, to the detection chamber is defined upon manipulation of the fluidic pathway at the first and second occlusion positions. - View Dependent Claims (13, 14, 15, 16, 17, 18, 24)
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19. A cartridge, configured to facilitate processing and detecting nucleic acids, comprising:
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a shared fluid port configured to receive a processing reagent volume; a first fluidic pathway for processing a first sample; a second fluidic pathway for processing a second sample; wherein the first fluidic pathway is coupled to the shared fluid port and the second fluidic pathway is coupled to the shared fluid port, wherein the first fluidic pathway and the second fluidic pathway are each configured to be occluded at a set of occlusion positions, and wherein the set of occlusion positions comprises a normally open position and a normally closed position, wherein the normally open position comprises a first surface of the fluidic pathway at the first layer and a second surface of the fluidic pathway at the elastomeric layer, wherein a void defined between the first surface and the second surface is configured to transition to a closed state upon occlusion by an occluding object applied to the elastomeric layer during operation; wherein the normally closed position is defined by a region of the fluidic pathway, at the first layer that extends toward and abuts the elastomeric layer in preventing fluid bypass at the region; and a first layer, an elastomeric layer, and an intermediate substrate that defines a chamber with a corrugated surface directly opposing the first layer, wherein the corrugated surface defines a set of voids external to the chamber and accessible from a direction perpendicular to a broad surface of the first layer, and wherein at least a portion of the corrugated surface includes a set of openings that provide access to the elastomeric layer. - View Dependent Claims (20, 21, 22, 23)
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Specification