MICROFLUIDIC DEVICE
First Claim
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1. A microfluidic device, comprising:
- a substrate;
a microfluidic flow channel formed in said substrate, wherein said flow channel extends through a portion of said substrate adapted to facilitate cytometry analysis of cells flowing in said flow channel;
a sterilization repository onboard said substrate, said sterilization repository being fluidically coupled to said flow channel; and
a substance disposed in said sterilization repository, said substance being operative to sterilize said flow channel when said substance flows from said sterilization repository into said flow channel.
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Abstract
The present disclosure relates to microfluidic devices adapted for facilitating cytometry analysis of particles flowing therethrough. In certain embodiments, the microfluidic devices have onboard sterilization capabilities. In other embodiments, microfluidic devices have integral collection bags and methods for keeping the microfluidic channels clean.
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Citations
19 Claims
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1. A microfluidic device, comprising:
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a substrate; a microfluidic flow channel formed in said substrate, wherein said flow channel extends through a portion of said substrate adapted to facilitate cytometry analysis of cells flowing in said flow channel; a sterilization repository onboard said substrate, said sterilization repository being fluidically coupled to said flow channel; and a substance disposed in said sterilization repository, said substance being operative to sterilize said flow channel when said substance flows from said sterilization repository into said flow channel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of detecting particles in a sample, the method comprising the steps of:
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a) providing a microfluidic device, said microfluidic device comprising; a substrate; a flow channel formed in said substrate for transport of a liquid sample; a sterilization repository onboard said substrate, said sterilization repository being fluidically coupled to said flow channel; a sterilizing substance disposed within said sterilization repository; and a valve disposed between said sterilization repository and said flow channel; b) flowing said sample through said flow channel; and c) opening said valve such that said sterilizing substance contained in said sterilization repository may flow through said flow channel, thereby sterilizing said flow channel. - View Dependent Claims (11)
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12. A microfluidic device, comprising:
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a substrate; a microfluidic flow channel formed in said substrate, wherein said flow channel extends through a portion of said substrate adapted to facilitate cytometry analysis of cells flowing in said flow channel, said flow channel having an outlet; and a collection bag coupled to said substrate and having an inlet fluidically coupled to said flow channel outlet. - View Dependent Claims (13, 14)
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15. A microfluidic device, comprising:
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a substrate; a microfluidic flow channel formed in said substrate, wherein said flow channel extends through a portion of said substrate adapted to facilitate cytometry analysis of cells flowing in said flow channel, said flow channel having an outlet; a well onboard said substrate and fluidically coupled to said flow channel, said well having a porous surface; and a collection bag coupled to said substrate and having an inlet fluidically coupled to said porous surface.
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16. A method of detecting particles in a sample, the method comprising the steps of:
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a) providing a microfluidic device, said microfluidic device comprising; a substrate; an input port; a flow channel formed in said substrate for transport of a liquid sample, said flow channel fluidically coupled to said input port; and an output port fluidically coupled to said flow channel; b) flowing said sample through said flow channel; c) attaching a collection bag to said output port; d) allowing sample to flow from said flow channel and into said collection bag; e) after step (d), detaching said collection bag from said output port; and f) after step (e), attaching said collection bag to said input port.
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17. A microfluidic device, comprising:
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a substrate; a microfluidic flow channel formed in said substrate, wherein said flow channel extends through a portion of said substrate adapted to facilitate cytometry analysis of cells flowing in said flow channel, said flow channel having an outlet; a sheath fluid flow channel formed in said substrate and fluidically coupled to said microfluidic flow channel; and a collection bag having a first chamber and a second chamber, said first chamber being fluidically coupled to said microfluidic flow channel outlet and said second chamber being fluidically coupled to said sheath fluid flow channel.
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18. A microfluidic device, comprising:
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a substrate; a sheath fluid flow channel formed in said substrate, wherein said flow channel extends through a portion of said substrate adapted to facilitate cytometry analysis of cells flowing in said flow channel, said flow channel having an outlet; a microfluidic flow channel formed in said substrate and having an outlet nozzle; and wherein said microfluidic flow channel intersects said sheath fluid flow channel such that said outlet nozzle is positioned to inject said cells substantially in a center of said sheath fluid flow channel.
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19. A method of detecting particles in a sample, the method comprising the steps of:
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a) providing a microfluidic device, said microfluidic device comprising; a substrate; an input port; a flow channel formed in said substrate for transport of a liquid sample, said flow channel fluidically coupled to said input port; and an output port fluidically coupled to said flow channel; b) mixing a detergent and a cell sample to create a mixture; and c) flowing said mixture through said flow channel.
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Specification