Classifying – separating – and assorting solids – Precedent preparation of items or materials to facilitate... – Sorting special items or sorting by methods and apparatus...
Patent
1980-07-14
1982-12-07
Knowles, Allen N.
Classifying, separating, and assorting solids
Precedent preparation of items or materials to facilitate...
Sorting special items or sorting by methods and apparatus...
209578, 209606, 23230B, B07G 502
Patent
active
043622461
ABSTRACT:
A method of treating mammal semen for use in artificial insemination is provided. Human saliva is added to the semen as an anti-coagulant. For mammals other than primates and voles, sperm-free human semen is added to the mammal semen as a cell membrane diffusion material so that a dye such as quinicrine or quinicrine mustard will be absorbed by the Y chromosome. The semen is then fed in a narrow stream through a detection chamber where it is irradiated with ultraviolet light causing the Y chromosomes to fluoresce. The stream is fed from the detection chamber through a fluidic amplifier wherein the stream is switched in response to whether the detected chromosome is fluorescent or non-fluorescent so that the fluorescent Y chromosome is directed through one outlet port and collected and the non-fluorescent X chromosome is directed through a second outlet port and collected.
REFERENCES:
patent: 3791517 (1974-02-01), Friedman
patent: 3976197 (1976-08-01), Bhattacharya
patent: 4155831 (1979-05-01), Bhattacharya
patent: 4225405 (1980-09-01), Lawson
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