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US 2004/0018115 A1Published application
Fault tolerant detection regions in microfluidic systems
AssigneeNanostream, Inc.
InventorChristoph D. Karp
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Abstract
Microfluidic devices including detection channel geometries that facilitate alignment such detection channels with multiple external sensors are provided. The detection channels include fault tolerant detection channels segments that have a span proportional and parallel to any anticipated positional or dimensional variation of the detection channels with respect to the positions of the multiple external sensors. The detection channels have a substantially constant channel width to minimize pressure-driven channel distortion and dead volumes.
Claims8
A microfluidic device comprising:
- a plurality of device layers defining a fixed axis, a variable axis, and an alignment tolerance dimension along the variable axis;
- and
- a detection channel defined in at least one of the device layers, the detection channel having a fault tolerant detection segment;
- wherein the fault tolerant detection segment is oriented orthogonally to the fixed axis and has a span parallel to the variable axis;
- wherein the span of the fault tolerant detection segment is proportional to the alignment tolerance dimension.
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Dependencies are inferred from the claim text.