Cell preservation system

Details Cell preservation system Cell preservation system

1990-01-18

1991-04-02

Bennett, Henry A.

Refrigeration

Automatic control

Of external fluid or means

62 99, 62435, 62434, F25D 1702

Patent

active

050037870

ABSTRACT:
A cell preservation system utilizes a pre-chilled coolant stored in a coolant reservoir, which is pumped at a controlled rate into a specimen vessel containing a specimen. This allows the achievement of a controlled rate of cooling the specimen and controls the formation of crystals in the specimen. The coolant reservoir is sealed, and the coolant is pumped from the specimen vessel to the coolant reservoir, whereby heat from the pump is not entered into the specimen vessel. A magnetic stirrer is selectively controlled to maintain a uniform temperature in the specimen vessel or, alternatively, is deenergized to permit temperature stratification to occur. A heater is included in the specimen vessel for precise heat control, and for raising the temperature of the coolant in the specimen vessel to a value suitable for beginning a cooling cycle.

REFERENCES:
patent: 2528574 (1950-11-01), Booth
patent: 3007319 (1961-11-01), Ogden
patent: 4563883 (1986-01-01), Sitte

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