System for high throughput sperm sorting
First Claim
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1. A sperm sorting system comprising:
- a substrate;
at least one flow channel formed in the substrate, the flow channel having a sample inlet that receives sample, the flow channel further comprising;
an inspection region, a first outlet, a second outlet, and a core stream forming geometry, the core stream forming geometry further comprising;
a lateral fluid focusing region on the same plane as the sample inlet, a first vertical fluid focusing channel, and a second vertical fluid focusing channel, wherein one of the first fluid focusing channel or the second vertical fluid focusing channel is in fluid communication with the flow channel from a second plane above the inlet and the other is in fluid communication with the flow channel from a third plane below the inlet, and wherein the second vertical fluid focusing channel is downstream of the first vertical focusing channel in the flow channel;
at least one diverting mechanism in communication with the at least one flow channel to selectively divert sperm in the at least one flow channel away from the first outlet;
an electromagnetic radiation source for illuminating sperm at the inspection region of the at least one flow channel;
an analyzer in communication with the detector to determine sperm characteristics;
a controller in communication with the analyzer for selectively activating the diverting mechanism based on measured sperm characteristics; and
a collection vessel in communication with the second outlet.
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Abstract
This disclosure relates to a system for sorting sperm cells in a microfluidic chip. In particular, various features are incorporated into the system for aligning and orienting sperm in flow channels, as well as, for determining sperm orientation and measuring relative DNA content for analysis and/or sorting.
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Citations
96 Claims
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1. A sperm sorting system comprising:
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a substrate; at least one flow channel formed in the substrate, the flow channel having a sample inlet that receives sample, the flow channel further comprising;
an inspection region, a first outlet, a second outlet, and a core stream forming geometry, the core stream forming geometry further comprising;
a lateral fluid focusing region on the same plane as the sample inlet, a first vertical fluid focusing channel, and a second vertical fluid focusing channel, wherein one of the first fluid focusing channel or the second vertical fluid focusing channel is in fluid communication with the flow channel from a second plane above the inlet and the other is in fluid communication with the flow channel from a third plane below the inlet, and wherein the second vertical fluid focusing channel is downstream of the first vertical focusing channel in the flow channel;at least one diverting mechanism in communication with the at least one flow channel to selectively divert sperm in the at least one flow channel away from the first outlet; an electromagnetic radiation source for illuminating sperm at the inspection region of the at least one flow channel; an analyzer in communication with the detector to determine sperm characteristics; a controller in communication with the analyzer for selectively activating the diverting mechanism based on measured sperm characteristics; and a collection vessel in communication with the second outlet. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96)
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Specification