Drying and gas or vapor contact with solids – Apparatus – With means to treat gas or vapor
Patent
1973-12-17
1978-09-26
Camby, John J.
Drying and gas or vapor contact with solids
Apparatus
With means to treat gas or vapor
34 92, 128156, 128334R, F26B 506, F26B 504
Patent
active
041159284
ABSTRACT:
An improvement in freeze-drying of skin tissue for use in treating wounds and diseased areas of the body wherein un-frozen skin is partially dried and frozen by drawing a vacuum across the skin before commencing the freeze-dry process, resulting in a novel product which reconstitutes more rapidly and more completely, and more nearly obtains the properties of fresh skin than obtainable by the product produced by the prior art process. In addition to the advantage of more efficient reconstitution, the method shortens the freeze-dry cycle and is less expensive.
REFERENCES:
patent: 3233333 (1966-02-01), Oppenheimer
patent: 3245152 (1966-04-01), Natelson et al.
patent: 3789515 (1974-02-01), Duprai
patent: 3842831 (1974-10-01), Beisang et al.
Armour Pharmaceutical Company
Camby John J.
Cates Charles E.
Mybeck Richard R.
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