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Gel coupling diaphragm for electrokinetic delivery systems

  • US 8,979,511 B2
  • Filed: 05/07/2012
  • Issued: 03/17/2015
  • Est. Priority Date: 05/05/2011
  • Status: Active Grant
First Claim
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1. A fluid delivery system, comprising:

  • a pump module having a pumping chamber therein;

    a pump engine configured to generate power to pump delivery fluid from the pumping chamber; and

    a flexible member comprising a first and second diaphragms fluidically separating the pump module from the pump engine and configured to deflect into the pumping chamber when pressure is applied to the flexible member from the pump engine, wherein the flexible member comprises a gel occupying 50%-95% of an area between deflectable portions of the first and second diaphragms so as to transfer more than 80% of an amount of power generated by the pump engine to the pump module to pump delivery fluid from the pumping chamber.

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