Microfluidic system with high aspect ratio
AssigneeRoche Diagnostics Operations, Inc.
InventorsGregor Ocvirk, Carlo Effenhuaser, Karl-Heinz Koelker
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Abstract
The invention relates to the technical field of microfluidic channel structures. The invention discloses a microfluidic channel system with a high aspect ratio as well as a process for producing the microfluidic system. The process according to the invention enables the production of channel structures with aspect ratios of any magnitude without the process being limited by the manufacturing conditions to certain materials for the channel system. The channel system can thus be optimally adapted to a desired field of application.
Claims22
A channel system for microfluidic flow having at least three fluidic connections through which a fluid can flow in or out, the system comprising
- a first body having at least two surfaces, a second body having at least two surfaces, and a third body having at least two surfaces,
- wherein the first body is joined to the second body by a first means such that a first channel is formed between a first surface of each of the first and second bodies and wherein the first channel is fluidically sealed on two edges and has a defined width or distance between the two first surfaces and a defined depth, and
- wherein the third body is joined to the first and second bodies by a second means such that a second channel is formed between a first surface of the third body and a second surface of the first and second bodies, wherein the channel is fluidically sealed on two edges and has a defined width and depth, and further wherein the second channel crosses the first channel, thereby providing a system having three fluidic connections, characterized in that the width each channel is less than 1 mm and the ratio of the depth to width of at least one of the channels is greater than 3.
A process for producing a channel system for microfluidic flow having at least three fluidic connections through which a fluid can flow in or out, the system comprising
- joining a first body having at least two surfaces to a second body having at least two surfaces by a first means whereby a first channel is formed between a first surface of each of the first and second bodies and wherein the first channel is fluidically sealed on two edges and has a defined width or distance between the two first surfaces and a defined depth, and
- joining a third body to the first and second bodies by a second means such that a second channel is formed between a first surface of the third body and a second surface of the first and second bodies, wherein the channel is fluidically sealed on two edges and has a defined width and depth, and further wherein the second channel crosses the first channel, thereby providing a system having three fluidic connections, characterized in that the width each channel is less than 1 mm and the ratio of the depth to width of at least one of the channels is greater than 3.
Dependencies are inferred from the claim text.