Method and system for pre-programmed self-power microfluidic circuits
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United States of America Patent
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Jun 23, 2020
Grant Date -
Feb 8, 2018
app pub date -
Oct 17, 2017
filing date -
Aug 30, 2011
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Abstract
A major challenge for the general use of “lab-on-a-chip” (LOAC) systems and point-of-care (POC) devices has been the generally complex and need for sophisticated peripheral equipment, such that it is more difficult than anticipated to implement low cost, robust and portable LOAC/POC solutions. It would be beneficial for chemical, medical, healthcare, and environmental applications to provide designs for inexpensive LOAC/POC solutions compatible with miniaturization and mass production, and are potentially portable, using compact possibly hand-held instruments, using reusable or disposable detectors. Embodiments of the invention address improved circuit elements for self-powered self-regulating microfluidic circuits including programmable retention valves, programmable trigger valves, enhanced capillary pumps, and flow resonators. Additionally embodiments of the invention allow for the flow direction within a microfluidic circuit to be reversed as well as for retention of reagents prior to sale or deployment of the microfluidic circuit for eased user use.
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