Sperm strainer system

Details Sperm strainer system Sperm strainer system

1998-12-18

2000-10-10

Walsh, Donald P.

Classifying, separating, and assorting solids

Sifting

Special applications

209 17, 209248, 209250, 209255, 209259, B07B 100

Patent

active

061292141

ABSTRACT:
The invention in the simplest form is a passive method and apparatus for filtering motile sperm from a sperm sample. The invention passively filters the motile sperm using a nucleopore membrane that is contained within a membrane assembly, wherein the membrane assembly is disposed in a container. In operation, a medium is placed in the container so the membrane contacts the medium. A sperm sample is placed one side of the membrane assembly, and the motile sperm migrate through the membrane leaving the non-motile sperm behind, where they can be easily extracted.

REFERENCES:
patent: 4007087 (1977-02-01), Ericsson
patent: 4009260 (1977-02-01), Ericsson
patent: 4439319 (1984-03-01), Rock
patent: 4804537 (1989-02-01), Bergman et al.
patent: 5185246 (1993-02-01), Deutsch
patent: 5427946 (1995-06-01), Kricka et al.
patent: 5575914 (1996-11-01), Jeyendran
patent: 5961503 (1999-10-01), Simmet et al.
Research Instruments, Instruction Sheet No. 68B, Migration-Sedimentation Chamber, 1 page.

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