Sterilizing process and apparatus utilizing gas plasma

Details Sterilizing process and apparatus utilizing gas plasma Sterilizing process and apparatus utilizing gas plasma

1973-06-25

1976-04-06

Wolk, Morris O.

21102R, 232585R, A61L 100

Patent

active

039486010

ABSTRACT:
A continuous flow of gas plasma is supplied to a space at a very low pressure in which the object to be sterilized is located. Cool plasma of a suitable gas such as argon is produced continually by being subjected to a radio-frequency field. Complex shapes such as capillary passages through a blood oxygenator can be sterilized by passing the gas plasma through them. The exterior of objects to be sterilized can be subjected to gas plasma in a space at a very low pressure either confined or unconfined. The space may, for example, be a packaging envelope, and subsequent to sterilization such envelope can be evacuated and collapsed onto the object to preserve its sterile character.

REFERENCES:
patent: 3383163 (1968-05-01), Menashi
patent: 3410776 (1968-11-01), Bersin
patent: 3428548 (1969-02-01), Hollahan
patent: 3600126 (1971-08-01), Hellund
patent: 3701628 (1972-10-01), Ashman et al.

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