Accession Number:

ADB206577

Title:

Electrochemically Based Modules for Sterilization in the Field. Phase 2.

Descriptive Note:

Final rept. 15 May-14 Aug 95,

Corporate Author:

LYNNTECH INC COLLEGE STATION TX

Report Date:

1995-09-30

Pagination or Media Count:

39.0

Abstract:

This project focuses on the utilization of high concentration ozone as an alternative to ethylene oxide for use in medical sterilization systems. Evaluations of high concentration, electrochemically generated, ozone clearly demonstrated that 1 it is an effective medical sterilant with a D-value of less than 10 minutes for bacterial spores, 2 high humidity 90-95 r.h. is critical for optimum ozone sporicidal activity, and 3 the application of pressure 5 to 15 psig increases the sporicidal activity of ozone. The findings provided the foundation for the design and fabrication of a prototype high concentration ozone sterilizer for field use. The prototype ozone sterilizer has a cycle time of 1 hour or less, and a maximum surgical pack throughput of three trays per sterilization cycle. The prototype design is modularized into the following six subsystems 1 power, 2 ozone generation, 3 cassette, 4 thermal control, 5 electronics, and 6 ozone destruct. The operation of these six subsystems is controlled by an Intel 80c 188 microprocessor operating at 16 MHz. The microprocessor continuously monitors the subsystems and controls all aspects of sterilizer operation. The prototype will provide high quality sterilization of medical equipment with minimum logistical requirements and training of personnel.

Subject Categories:

  • Medical Facilities, Equipment and Supplies
  • Hygiene and Sanitation
  • Inorganic Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE