Embryo washing apparatus and process

Details Embryo washing apparatus and process Embryo washing apparatus and process

1990-05-29

1993-06-08

Kummert, Lynn M.

Chemical apparatus and process disinfecting, deodorizing, preser

Control element responsive to a sensed operating condition

422101, 422103, 7386473, 7386401, 436178, 436180, G01N 110

Patent

active

052176932

ABSTRACT:
This invention concerns apparatus and a method for preparing an embryo for cryogenic storage, and for thawing thereof prior to implantation. The apparatus employs a washing tube containing a microporous filter dividing the tube into two chambers between opposite open ends. A tubular coupling member is attachable to either end of the tube. A liquid driving device which may be an aspirator, drives holding, washing, and storing liquid through the tube while the filter retains the embryo in a washing chamber. A storage straw can be attached to the coupling member to receive by aspiration the storing liquid containing the embryo. The straw contains a movable plug or wick at one end to force the storing liquid and embryo out of the storage straw into the washing chamber, after the storing liquid is thawed.

REFERENCES:
patent: 2376231 (1945-05-01), Cohn
patent: 2423173 (1947-07-01), Brady et al.
patent: 3768978 (1973-10-01), Grubb et al.
patent: 3783696 (1974-01-01), Coleman
patent: 3864979 (1975-02-01), Ayres
patent: 4507955 (1985-04-01), Haase

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