Fluid delivery system for a microfluidic device using a pressure pulse
First Claim
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1. A microfluidic fluid delivery system comprising:
- a microfluidic device having, a fluid input;
a fluid reservoir coupled to said fluid input; and
a pulse generator generating an electrical pulse; and
a gas pressure delivery source coupled to said pulse generator and said fluid reservoir, said gas pressure delivery source controlling a gas pressure pulse in response to said electrical pulse, said gas pressure pulse displacing fluid from said fluid reservoir into said fluid input.
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Abstract
A microfluidic fluid delivery system includes a microfluidic device having a fluid input. A fluid reservoir is fluidically coupled to the fluid input. A gas delivery system has a pulse generator that generates an electric pulse. An electrically operated valve is coupled to the pulse generator and the gas pressure source. The valve controls the gas pressure pulse in response to said electric pulse. The gas pressure pulse displaces fluid from the fluid reservoir into the plurality of capillaries.
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Citations
19 Claims
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1. A microfluidic fluid delivery system comprising:
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a microfluidic device having, a fluid input;
a fluid reservoir coupled to said fluid input; and
a pulse generator generating an electrical pulse; and
a gas pressure delivery source coupled to said pulse generator and said fluid reservoir, said gas pressure delivery source controlling a gas pressure pulse in response to said electrical pulse, said gas pressure pulse displacing fluid from said fluid reservoir into said fluid input. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A microfluidic system comprising:
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a fluid reservoir;
a microfluidic chip having a first fluid input channel coupled to the fluid reservoir and a plurality of wells coupled to said first fluid input channel;
a gas input fluidically coupled to said fluid reservoir;
a low-pressure distribution system coupled to said gas input providing a low-pressure to said fluid reservoir;
a high-pressure distribution system coupled to said gas input to provide a pulsed high pressure to said fluid reservoir;
a first pulse generator generating a first electrical pulse;
a first valve electrically coupled to said first pressure generator, and fluidically coupled to said high-pressure distribution system and said gas input, said first valve operated in response to said first electrical pulse;
a controller coupled to said first valve and said second valve, said controller selectively coupling said second valve to said low-pressure fluid distribution system to supply fluid to fill said first fluid input channel of said microfluidic chip and selectively coupling said second valve to said high-pressure fluid distribution system to supply, by said high-pressure gas pulse, fluid to fill said plurality of wells of said microfluidic chip. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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Specification