Small volume test strips with large sample fill ports, supported test strips, and methods of making and using same
First Claim
Patent Images
1. An analyte sensor comprising:
- a sample chamber, the sample chamber comprising a sample fill port, wherein the sample chamber has a volume (Vc) in mm3, the sample fill port has an area (Ap) in mm2 and Ap/Vc is greater than 0.75 mm−
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a first substrate having a proximal end and a distal end;
a second substrate having a proximal end and a distal end; and
at least three spacers positioned between the first substrate and the second substrate,wherein the at least three spacers are positioned in a single plane,wherein the first substrate, the second substrate, and the at least three spacers together define the sample chamber, the sample chamber comprising a perimeter comprising a bounded region defined by the at least three spacers and an unbounded region open to the external environment, andwherein the unbounded region is greater in distance than the bounded region.
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Abstract
The present disclosure provides small volume analyte sensors having large sample fill ports, supported analyte sensors, analyte sensors having supported tip protrusions and methods of making and using same.
87 Citations
40 Claims
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1. An analyte sensor comprising:
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a sample chamber, the sample chamber comprising a sample fill port, wherein the sample chamber has a volume (Vc) in mm3, the sample fill port has an area (Ap) in mm2 and Ap/Vc is greater than 0.75 mm−
1;a first substrate having a proximal end and a distal end; a second substrate having a proximal end and a distal end; and at least three spacers positioned between the first substrate and the second substrate, wherein the at least three spacers are positioned in a single plane, wherein the first substrate, the second substrate, and the at least three spacers together define the sample chamber, the sample chamber comprising a perimeter comprising a bounded region defined by the at least three spacers and an unbounded region open to the external environment, and wherein the unbounded region is greater in distance than the bounded region. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. An analyte sensor comprising:
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a sample chamber, the sample chamber comprising a sample fill port, wherein the sam s le chamber has a volume (Vc) in mm3, the sample fill port has an area (Ap) in mm2 and Ap/Vc is greater than 0.75 mm−
1;a first substrate having a proximal end and a distal end, wherein the first substrate comprises a first protrusion positioned at the proximal end of the first substrate; a second substrate having a proximal end and a distal end, wherein the second substrate comprises a second protrusion positioned at the proximal end of the second substrate; and a plurality of spacers positioned between the first substrate and the second substrate, wherein one of the plurality of spacers is positioned between the first protrusion and the second protrusion, wherein the plurality of spacers are positioned in a single plane, wherein the first substrate, the second substrate, and the plurality of spacers together define the sample chamber, the sample chamber comprising a perimeter comprising a bounded region defined by the plurality of spacers and an unbounded region open to the external environment, and wherein the unbounded region is greater in distance than the bounded region. - View Dependent Claims (23)
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24. An analyte sensor comprising:
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a first substrate having a proximal end and a distal end; a second substrate having a proximal end and a distal end; a first protrusion positioned at the proximal end of the first substrate; a second protrusion positioned at the proximal end of the second substrate; a plurality of spacers positioned between the first substrate and the second substrate;
wherein the plurality of spacers is positioned in a single plane;
the first substrate, the second substrate, and the plurality of spacers together define a sample chamber; and
a spacer of the plurality of spacers is positioned between the first protrusion and the second protrusion. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40)
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Specification