×

Flow control in microfluidics devices by controlled bubble formation

  • US 5,992,820 A
  • Filed: 11/19/1997
  • Issued: 11/30/1999
  • Est. Priority Date: 11/19/1997
  • Status: Expired due to Fees
First Claim
Patent Images

1. A fluid control device comprising:

  • (a) a channel of capillary dimensions for conveying a liquid;

    (b) a bubble-forming device for forming a channel-blocking bubble in the channel comprising two or more electrodes which operate, when sufficient voltage is applied to the electrodes, to form the bubble, wherein such a bubble formed in the channel impedes the flow of the liquid through the channel.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×