Tray apparatus for freeze-drying biologicals having a predetermi

Details Tray apparatus for freeze-drying biologicals having a predetermi Tray apparatus for freeze-drying biologicals having a predetermi

1982-07-30

1985-02-26

Richman, Barry S.

Chemical apparatus and process disinfecting, deodorizing, preser

Control element responsive to a sensed operating condition

422 99, 436809, 34237, B01L 300, F26B 2506

Patent

active

045017190

ABSTRACT:
A tray having a plurality of wells bored or formed therein of predetermined volume for use in a freeze drying process is disclosed. The wells contain a solution of biologicals of predetermined concentration. The tray is thermally configured to maximize freezing efficiency during the lypholization or freeze-drying process. A pledget product is formed by the freeze drying process, the pledget adapted to be used in a single dosage of a predetermined unit value. The pledget can be stored for extended periods of time in a syringe and then be readily utilized in heparinizing an aspirated blood sample.

REFERENCES:
patent: 3545097 (1970-12-01), Waltrich
patent: 3556731 (1971-01-01), Martin
patent: 3713985 (1973-01-01), Astle
patent: 4154795 (1979-05-01), Thorne
patent: 4166345 (1979-09-01), Becker
patent: 4292273 (1981-09-01), Butz et al.
patent: 4326498 (1982-04-01), Eckland

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